FIBROMYALGIA, CHRONIC FATIGUE SYNDROME AND RELATED CENTRAL SENSITIVITY SYNDROMES (CSS) A PRIMARY CARE T OOLKIT
COMPLEX CHRONIC DISEASES PROGRAM BC WOMEN’S HOSPITAL
Ric Arseneau, MD FRCPC MA(Ed) MBA FACP CGP Clinical Professor Division of General Internal Medicine St. Paul's Hospital & BC Women’s Hospital Director of Program Planning Complex Chronic Diseases Program University of British Columbia
No Conflicts of Interest to Declare MEDICALLY UNEXPLAINED PHYSICAL SYMPTOMS (MUPS)
IS IT REAL ?
Psychological / Psychiatric Not real Nothing you can do Frustrating / unsatisfying
Free-association exercise with housestaff IS IT RARE ?
5 OVERLAPPING GROUPS
Fatigue
Pain Brain Fog
Sleep Unexplained Problems Symptoms Gut CNS Autonomic Pain Research and Treatment Volume 2012, Article ID 584573, 8 pages doi:10.1155/2012/584573
Review Article The Prevalence of Fibromyalgia in Other Chronic Pain Conditions Pain Research and Treatment 3 Pain ResearchMuhammad and Treatment B. Yunus 3
Table 1: Prevalence ofTable fibromyalgia1: syndrome Prevalence (FMS) in of other fibromyalgia central sensitivity syndrome syndromes (CSS) (FMS) conditions. in other central sensitivity syndromes (CSS) conditions.
CSS condition ∗ % prevalence of FMS (mean) % prevalence of FMS (range) Reference no. Irritable bowelCSS syndrome condition∗ 40.7% prevalence 20.0–65.0 of FMS (mean) [9, 11–14] % prevalence of FMS (range) Reference no. Section of Rheumatology, Department of Medicine, University of Illinois College of Medicine at Peoria, One Illini Drive, TemporomandibulardisorderIrritablePeoria, bowel IL 61605, syndrome USA 23.7 13.0–52.0 40.7 [9, 15–19] 20.0–65.0 [9, 11–14] Headaches(all) 26.3 10.0–40.0 [9, 20–23] Tension-typeTemporomandibulardisorder headacheCorrespondence should be addressed 29.7 to Muhammad B. Yunus, [email protected] 23.0–36.4 23.7 [9, 23] 13.0–52.0 [9, 15–19] MigraineHeadaches(all)Received 3 May 2011; Accepted 15 16.0 August 2011 10.0–22.0 26.3 [21, 22] 10.0–40.0 [9, 20–23] Mixed¶ 38.2 36.4–40.0 [20, 23] InterstitialcystitisTension-typeAcademic Editor: Mary-Ann headache Fitzcharles 15.4 12.0–22.4 29.7 [9, 24–27] 23.0–36.4 [9, 23] Chronic fatigue syndromeCopyright © 2012 Muhammad B. 55.2 Yunus. This is an open access article distributed 15.6–80 under the Creative Commons [9, 28, 29 Attribution] Vulvar vestibular syndromeMigraineLicense, which permits unrestricted 23.4 use, distribution, and reproduction in 15.6–31.2 any medium, 16.0 provided the original [30 work, 31] is properly 10.0–22.0 [21, 22] cited. Gulf War syndromeMixed¶ 17.6 2.0–33.838.2 [32–34] 36.4–40.0 [20, 23] ∗ Prevalence of FMS in otherCentral CSS conditions sensitivity with syndromes a single study (CSS) has includebeen discussed fibromyalgia in the text. syndrome (FMS), irritable bowel syndrome, temporomandibular ¶Mixture of tension-typeInterstitialcystitis headachedisorder, and restless migraine. legs syndrome, chronic fatigue syndrome, and other similar chronic 15.4 painful conditions that are based on central 12.0–22.4 [9, 24–27] sensitization (CS). CSS are mutually associated. In this paper, prevalence of FMS among other members of CSS has been described. ChronicAn important fatigue recent syndrome recognition is an increased prevalence of FMS in other chronic 55.2 pain conditions with structural pathology, for 15.6–80 [9, 28, 29] although they are presentexample, to a rheumatoid lesser extent arthritis, in other systemic members lupus, ankylosingthat is, spondylitis, increased osteoarthritis, prevalence of diabetes FMS compared mellitus, and with inflammatory study or bowel of CSS as a manifestationVulvardisease. vestibular of DiagnosisCS [6]. and syndrome proper management of FMSpopulation among these controls, diseases are it of seems 23.4 crucial proper importance to conclude so that unwarranted that true use of 15.6–31.2 [30, 31] It was notGulf until 1990s Warsuch whenmedications syndrome the presence as corticosteroids of FMS can in many be avoided,associations since FMS often of occurs FMSwith when 17.6the RA or diseases SLE is relatively discussed mild. exist. 2.0–33.8 [32–34] chronic diseases with structural pathology was generally recognized among∗ Prevalence the researchers. of FMS in Now, other it CSS is known conditions6. Pathophysiological with a single study Mechanisms has been discussed of Disease in the text. that FMS is significantly associated with RA [10, 38–41], ¶Mixture of tension-type headache and migraine. systemic lupus1. Introduction: (SLE) [42–48], ankylosing Historical spondylitis Overview (AS) and the AssociationsCathey were with the first FMS: to recognize Central the Sensitization association of FMS with [49, 50], osteoarthritisImportance (OA) [51 of], Nomenclatures diabetes mellitus [52, 53], Is Centralrheumatoid arthritis (RA) [10]. Although they were called endometriosis [54], hypothyroidism [55], and inflammatory “secondary fibrositis,” these were cases of concomitant FMS bowel diseaseThe [56 fact, 57 that](Table fibromyalgia 2). syndrome (FMS) is associated6.1. with CS andwith CSS typical Conditions. symptomsCentral and multiple and common tender points to CSS (TP) in diseases are CS. The pathophysiology of CS has been CS aloneseveralalthough (without similar FM) conditions they has been are without reported present structural in juvenile to pathology a lesser was extentassociation in other with RA. members The diagnosis of FMSthat in the pre-1990 is, increased prevalence of FMS compared with study or first reported in a controlled study in 1981 [1], followingdiscussed elsewhere [6, 8, 75]andisbeyondthescopeofthis chronic arthritis [59], OA [60–65], endometriosis [66], ACR criteria era was made on the characteristic symptoms of whichof CSS a conceptual as a manifestation model was proposed with of CS a Venn [essay.6 dia-]. TobeFMS sure, as well the mechanismsas many tender involved points [ in10 CS]. arepopulation multiple controls, it seems proper to conclude that true carpal tunnel syndrome [67–69], chronic pancreatitis [70, gram, showing the mutual overlaps in these syndromesand [2]. complexWhat’s [75]. Some in a name? of these Asked mechanisms Shakespeare involve rhetorically tem- in 71], and Parkinson’s disease [72–74]. It is likely that CS associations of FMS with the diseases discussed exist. Since then,It was a large not number until of studies 1990s have when confirmed theporal these presence summationRomeo and of(windup), Juliet. FMS My long-term own in manyanswer potentiation is “A lot.” A name (LTP), should is the harbinger of future development of FMS, as may associations, compared with both healthy controls as wellheterosynaptic as be meaningful, potentiation, tell the a dysfunctional gist of the topic, descending and must notpain distort be demonstratedchronic in future diseases studies. It is with as if “fibro, structural fibro pathology was generally diseases with structural (the so-called “organic”) pathologyinhibition,the and underlying an activation truth, recognizing of the descending that scientific facilitatory truth is not everywhere and not a place for the (rational) eyes to hide.” (DWSP)recognized [3, 4]. (Although among there the are structural researchers. changes,pathwaycarved [75 Now,]. It in rockis also it and evident does is change known that over input time. in In one this set discourse, of I An interesting question is, and data have not emerged yet e.g., decreased hippocampus and gray matter volumenociceptive in shall fibers use the amplifies terms syndrome, subsequent illness, response condition,6. to other andPathophysiological disease Mechanisms of Disease to answer it,that are other FMS members is of significantly the CSS family, such associated as with RA [10, 38–41], some CSS conditions, these changes seem to resultnonstimulated from synonymously. noceptive Further, or nonnociceptive since the term fibromyalgia fibers (het- implies IBS and myogenicprolonged TMD central also associated sensitization with (CS) these and chronic will be discussed Associations with FMS: Central Sensitization systemic lupus (SLE) [42–48], ankylosingerosynapticnothing potentiation). more spondylitis than Such pain as phenomena has (AS) been discussed explain by diff Fitzcharlesuse diseases withat structural the end.) pathology? These overlapping conditions are collectively and Yunus in this issue of the journal, I prefer the term distribution of pain as well as allodynia. FMS hasknown been as reported central sensitivity also in syndromes Sjogren’s (CSS)syndrome, [5–8], since CS “fibromyalgia syndrome” since FMS is so muchIs more Central than [49, 50], osteoarthritis (OA) [51], diabetesAfter many years mellitus of research [52 in, animal53], models, human hepatitis C, HIV,is the and common other binding infections, gluefor between example, them. Lyme The term CSS pain with a large number of other distressing symptoms. volunteers, and chronic pain conditions, several facts have disease. Truewasendometriosis to first the coinedtitle of in this 2000 essay, [5 []andhasbeenreviewed[54 however,], hypothyroidism only those 5–8]. We [55],Elsewhere, and inflammatory I have argued that differentiation between emerged. While a noxious stimulus at some point6.1. in the CS and CSS Conditions. Central and common to CSS diseases that[ usually6]andothers[ cause9 pain] have have described been described mutual associations in this among illness and disease is artificial and contrary to patient bowel disease [56, 57](Table 2). past might have initiated increased neuronal sensitivity, no paper. the CSS conditions. interest and hampers proper management ofdiseases CSS conditions, are CS. The pathophysiology of CS has been InCS contrast alone to association (without of FMS with FM) other CSS has mem-further been nociceptivesince reported anything stimulus that in is juvenile necessary not currently to perpetuate viewed as and a disease bers, association of FMS with DWSP was reported somewhatsustain a(i.e., state does of hyperalgesia not have structural or allodynia. pathology, That e.g.,discussed sustained inflammation, elsewhere [6, 8, 75]andisbeyondthescopeofthis chronic arthritis [59], OA [60pain–65 is], no endometriosis longer nociceptive in nature, [66], provoking some 5. Criticallater Evaluation [10]andmorefrequentlyonlyinrecentyears.Wolfeand of the Studies: degeneration, or neoplasm) is viewed asessay. predominantly Tobe sure, the mechanisms involved in CS are multiple Imperfectcarpal but the tunnel Associations syndrome Are Real [67–69],physicians chronic to take pancreatitis recourse to such derogatory[70, lexicons as neurotics, malingerers, somatizers, and “medicallyand unex- complex [75]. Some of these mechanisms involve tem- A number of71 studies,], and both in Parkinson’s the category of FMS disease in CSS [72plained–74]. symptoms” It is likely(read “your that symptoms CS are all in your poral summation (windup), long-term potentiation (LTP), and FMS in DWSP,is the are less harbinger than satisfactory of because future of small developmenthead”). In other of cases, FMS, following as the may adequate initial noci- numbers, unspecified or nonstandard criteria used (both for ceptive input, only a very low level of nociceptiveheterosynaptic stimulus potentiation, a dysfunctional descending pain FMS and thebe associated demonstrated diseases), an absence in of, future or the use ofstudies.was needed It is to maintain as if “fibro,the CS [75]. fibro inappropriate controls as well as inappropriate statistics, for With regards to tender points, it is often statedinhibition, that they and an activation of the descending facilitatory everywhere and not a place for the (rational) eyes to hide.” example, a failure to adjust for multiple comparisons. Lack are subjective (thus there is an issue of secondary gainpathway here), [75]. It is also evident that input in one set of of blindness,An a critical interesting procedure to avoid question bias, was universal, is, andbut data CS may have be elicited not by emerged stimuli that do yet not require patient’s as is the case with most published studies in any disease. subjective response and are thus purely objective.nociceptive Such an fibers amplifies subsequent response to other However,to reported answer prevalence it, are rates other of FMS in members general objective of the “test” CSS is nociceptive family, spinal such flexion as reflex that has nonstimulated noceptive or nonnociceptive fibers (het- were much higherIBS than and that myogenic in the general population. TMD also Since associatedbeen demonstrated with in these several chronic CSS conditions [6]. Using the results of all the studies converge in the same direction, ascending and random paradigms, it has been demonstratederosynaptic potentiation). Such phenomena explain diffuse diseases with structural pathology? distribution of pain as well as allodynia. FMS has been reported also in Sjogren’s syndrome, After many years of research in animal models, human hepatitis C, HIV, and other infections, for example, Lyme volunteers, and chronic pain conditions, several facts have disease. True to the title of this essay, however, only those emerged. While a noxious stimulus at some point in the diseases that usually cause pain have been described in this past might have initiated increased neuronal sensitivity, no paper. further nociceptive stimulus is necessary to perpetuate and sustain a state of hyperalgesia or allodynia. That sustained 5. Critical Evaluation of the Studies: pain is no longer nociceptive in nature, provoking some Imperfect but the Associations Are Real physicians to take recourse to such derogatory lexicons as neurotics, malingerers, somatizers, and “medically unex- A number of studies, both in the category of FMS in CSS plained symptoms” (read “your symptoms are all in your and FMS in DWSP, are less than satisfactory because of small head”). In other cases, following the adequate initial noci- numbers, unspecified or nonstandard criteria used (both for ceptive input, only a very low level of nociceptive stimulus FMS and the associated diseases), an absence of, or the use of was needed to maintain the CS [75]. inappropriate controls as well as inappropriate statistics, for With regards to tender points, it is often stated that they example, a failure to adjust for multiple comparisons. Lack are subjective (thus there is an issue of secondary gain here), of blindness, a critical procedure to avoid bias, was universal, but CS may be elicited by stimuli that do not require patient’s as is the case with most published studies in any disease. subjective response and are thus purely objective. Such an However, reported prevalence rates of FMS in general objective “test” is nociceptive spinal flexion reflex that has were much higher than that in the general population. Since been demonstrated in several CSS conditions [6]. Using the results of all the studies converge in the same direction, ascending and random paradigms, it has been demonstrated BIRDS OF A FEATHER ๏ ME/CFS ๏ Fibromyalgia ๏ Myofascial Pain Syndrome ๏ Migraines ๏ Tension Type Headaches ๏ Irritable Bowel Syndrome ๏ Interstitial Cystitis ๏ Pelvic Pain Syndrome ๏ PTSD ๏ Non-Cardiac Chest Pain (Costochondritis) ๏ Temporomandibular Disorder ๏ Irritable Larynx Syndrome ๏ Central Abdominal Pains Syndrome (AKA Functional) ๏ Other Pain Syndromes Fibromyalgia and Overlapping Disorders: The Unifying Concept of Central Sensitivity Syndromes
Muhammad B. Yunus, MD
Semin Arthritis Rheum 36:339-356 2007 CENTRAL SENSITIVITY SYNDROMES
FM ME/CFS
MCS CLD
Interstitial Cystitis IBS Central Sensitization Pelvic Pain Syndromes Migraines CSS
POTS T-T Headaches
RLS TMD Others
ME/CFS (Myalgic Encephalomyelitis/Chronic Fatigue Syndrome); FM (Fibromyalgia); MCS (Multiple Chemical Sensitivities); CLD (Chronic Lyme Disease); IBS (Irritable Bowel Syndrome); T-T (Tension Type); TMD (Temporomandibular Disorders); POTS (Postural Orthostatic Tachycardia Syndrome); RLS (Restless Leg Syndrome); Others including: irritable larynx syndrome, PTSD (Post Traumatic Stress Syndrome, non-cardiac chest pain (costochondritis), myofascial pain syndrome, and other pain syndromes. Adapted from Yunus, Semin Arthritis Rheum 36:339-356 Open Access Rambam Maimonides Medical Journal CLINICAL PSYCHOLOGY IN MEDICINE
Special Issue on the Rambam–Mayo Collaboration Guest Editor: John H. Davidson, M.D., M.A.H.L. Central Sensitization Syndrome and the Initial Evaluation of a Patient with Fibromyalgia: A Review
Kevin C. Fleming, M.D.1* and Mary M. Volcheck, R.N.2 1Assistant Professor of Medicine, College of Medicine; Division of General Internal Medicine, Section of Complementary and Integrative Medicine, and Fibromyalgia and Chronic Fatigue Clinic, Mayo Clinic, Rochester, Minnesota, USA; and 2Nursing in Fibromyalgia/Pain Rehabilitation Center, Mayo Clinic, Rochester, Minnesota, USA April 2015 Volume 6 Issue 2 e0020
Central Sensitization and Fibromyalgia
Box 1. Diagnoses, Self-diagnoses, and Symptoms that May Suggest Central Sensitization Syndrome (Especially If Copious).
Abdominal bloating Immune deficiency (self-diagnosed) Abdominal pain, chronic abdominal pain Interstitial cystitis, painful bladder syndrome Adrenal insufficiency (self-diagnosed), adrenal Irritable bowel syndrome fatigue Joint pains Alopecia, hair loss, trichotillomania Low testosterone or hypogonadism (with normal Anxiety test results) Atypical facial pain Lupus (self-diagnosed) Atypical or non-cardiac chest pain Lyme disease, chronic Lyme disease (self- Autoimmune disorder (self-diagnosed) diagnosed) Autonomic disorder (self-diagnosed) Meniere disease Black mold, toxic black mold (self-diagnosed) Morgellons disease (self-diagnosed) Brain fog, fibrofog Multiple chemical sensitivities Burning mouth syndrome Multiple drug allergies or intolerances (self- diagnosed) Burning tongue Multiple food allergies or intolerances (self- Candida or chronic yeast infection diagnosed) Chiari malformation Myofascial pain syndrome Chronic low-back pain Palpitations Chronic non-specific lightheadedness Panic disorder, episodes, attacks Chronic pain Pelvic pain, chronic pelvic pain, premenstrual Chronic pelvic pain syndrome Chronic prostatitis Polycystic ovary syndrome Chronic tension or migraine headaches Porphyria (self-diagnosed) Chronic testicular or scrotal pain Post-deployment syndrome Chronic whiplash-associated disorders Post-traumatic stress disorder Chronic widespread pain Postural orthostatic tachycardia syndrome (POTS) Complex regional pain syndrome Pseudotumor cerebri Delusions of parasitosis Schamberg disease, soft tissue tumors Depression or bipolar disorder Sick building syndrome Dizziness Sjögren syndrome (blamed for multiple Edema or swelling complaints not evident on symptoms) examination Temporomandibular disorders, Ehlers–Danlos syndrome temporomandibular joint pain Fatigue or chronic fatigue Thyroid disease (with normal test results, usually Fibromyalgia, myalgic encephalitis self-diagnosed) Tinnitus Hormone imbalance Vulvodynia, vulvar vestibulitis Hyperventilation Hypoglycemia (self-diagnosed)
CENTRAL SENSITIVITY SYNDROMES VS CENTRAL SENSITIZATION
Pain Medicine 2015; 16: 1373–1385 Wiley Periodicals, Inc.
MUSCULOSKELETAL SECTION
Original Research Article Efficacy and Safety of Duloxetine on Osteoarthritis Knee Pain: A Meta-Analysis of Randomized Controlled Trials THE 3 P’S OF CENTRAL SENSITIVITY SYNDROMES
๏ Predisposing ๏ Genetics & Adverse Childhood Events
๏ Precipitating ๏ Stressor: Physical, Infectious, Psychological
๏ Perpetuating ๏ Levers for treatment PERPETUATING... Poor Sleep Over-exertion Reduced Activity
Depression Anxiety Stress REPORT BRIEF FEBRUARY 2015
For more information visit www.iom.edu/MECFS
Beyond Myalgic Encephalomyelitis/ Chronic Fatigue Syndrome Redefining an Illness
Between 836,000 and 2.5 million Americans suffer from myalgic encephalomyelitis/chronic fatigue syndrome—commonly referred to as ME/ CFS. This disease is characterized by profound fatigue, cognitive dysfunction, sleep abnormalities, autonomic manifestations, pain, and other symptoms that are made worse by exertion of any sort. ME/CFS can severely impair patients’ ability to conduct their normal lives. Yet many people struggle with symptoms for years before receiving a diagnosis. Fewer than one-third of medical school curricula and less than half of medical textbooks include information about ME/CFS is a serious, chronic, ME/CFS. Although many health care providers are aware of ME/CFS, they complex, systemic disease that may misunderstand the disease or lack knowledge about how to diagnose and often can profoundly affect the treat it. Such gaps in understanding lead to delayed diagnoses and inappropri- lives of patients. ate management of patients’ symptoms. The Department of Health and Human Services (HHS), the National Insti- tutes of Health, the Agency for Healthcare Research and Quality, the Centers for Disease Control and Prevention, the Food and Drug Administration, and the Social Security Administration asked the Institute of Medicine (IOM) to convene an expert committee to examine the evidence base for ME/CFS. In Beyond Myal- gic Encephalomyelitis/Chronic Fatigue Syndrome: Redefining an Illness, the com- mittee proposes new diagnostic criteria that will facilitate timely diagnosis and care and enhance understanding among health care providers and the public. In addition, the committee recommends that the name of the disease be changed— from ME/CFS to systemic exertion intolerance disease (SEID)—to more accu- rately capture the central characteristics of the illness.
Understanding ME/CFS The primary message of the committee’s report is that ME/CFS is a serious, chronic, complex, systemic disease that often can profoundly affect the lives of INSTITUTE OF MEDICINE REPORT (IOM)
๏ New name: Systemic Exertion Intolerance Disease (SEID) ๏ New criteria
๏ Legitimacy
Annals of Internal Medicine EDITORIAL Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Real Illness
Anthony L. Komaroff, MD Brigham and Women's Hospital, Harvard Medical School Boston, Massachusetts Ann Intern Med. 2015;162:871-872. doi:10.7326/M15-0647
VO2 MAX Metabolic and Workload Measurements in Chronic Fatigue Syndrome Research Report
Discriminative Validity of Metabolic
Figure 1. ˙ andMeasurements Workload of oxygen consumption (VO2) at peak Measurements exercise (A) and at the ventilatory threshold (B) in participants for with chronic fatigue syndrome (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise Identifyingtest 2 (gold bars). Error bars represent 1 People standard deviation. With Chronic other research using the same proto- between the CFS group (Xϭ1.25) CFS group was working at or close to col to measure physiological and the control group (Xϭ0.98).7 maximal exertion, whereas the con- Fatigueresponses in people with Syndrome CFS.30,31 A On the basis of accepted criteria for trol group was not. These data have more recent study in which the aer- evaluating effort during CPET, a peak important implications for physical Christopherobic power test was R. used Snell, as an Staci exer- R.RER Stevens, of greater Toddthan 1.10 E. indicates Davenport,therapists J. Mark because Van even Ness low-level cise challenge to study pain and PEM excellent effort, and a peak RER of exercise assessments and interven- C.R. Snell, PhD, Department of in people with CFS revealed signifi- less than 1.0 reflects submaximal tions can involve nearly maximal cant differences in the peak RER effort.8,21 The indication is that the exertion by people with CFS. Sport Sciences, University of the Reduced functional capacity and postexertion fatigue after physical Pacific, Stockton, California, and Background. Workwell Foundation, Ripon, activity are hallmark symptoms of chronic fatigue syndrome (CFS) and may even California. qualify for biomarker status. That these symptoms are often delayed may explain the equivocal results for clinical cardiopulmonary exercise testing in people with CFS. S.R. Stevens, MA, Workwell Foundation. Test reproducibility in people who are healthy is well documented. Test reproduc- ibility may not be achievable in people with CFS because of delayed symptoms. T.E. Davenport, PT, DPT, OCS, Department of Physical Therapy, University of the Pacific, 3601 Objective. The objective of this study was to determine the discriminative validity Pacific Ave, Stockton, CA 95211 of objective measurements obtained during cardiopulmonary exercise testing to (USA), and Workwell Foundation. distinguish participants with CFS from participants who did not have a disability but Address all correspondence to were sedentary. Dr Davenport at: tdavenport@ pacific.edu. Design. A prospective cohort study was conducted. J.M. Van Ness, PhD, Department Figure 2. of Sport Sciences, University of the Methods.Measurements of workloadGas at exchange peak exercise (A) data, and at the workloads, ventilatory threshold and (B) inrelated participants physiological with chronic fatigue syndrome parameters Pacific, and Workwell Foundation. (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise test 2 (gold bars). wereError bars compared represent 1 standard in 51 deviation. participants with CFS and 10 control participants, all women, [Snell CR, Stevens SR, Davenport for 2 maximal exercise tests separated by 24 hours. TE, Van Ness JM. Discriminative November 2013 Volume 93 Number 11 Physical Therapy f 1489 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 validity of metabolic and workload Multivariate analysis showed no significant differences between control measurements for identifying Results. people with chronic fatigue syn- participants and participants with CFS for test 1. However, for test 2, participants drome. Phys Ther. 2013;93: with CFS achieved significantly lower values for oxygen consumption and workload 1484–1492.] at peak exercise and at the ventilatory or anaerobic threshold. Follow-up classification ©2013AmericanPhysicalTherapy analysis differentiated between groups with an overall accuracy of 95.1%. Association Limitations. Only individuals with CFS who were able to undergo exercise Published Ahead of Print: June 27, 2013 testing were included in this study. Individuals who were unable to meet the criteria Accepted: June 23, 2013 for maximal effort during both tests, were unable to complete the 2-day protocol, or Submitted: October 27, 2011 displayed overt cardiovascular abnormalities were excluded from the analysis.
Conclusions. The lack of any significant differences between groups for the first exercise test would appear to support a deconditioning hypothesis for CFS symp- toms. However, the results from the second test indicated the presence of CFS-related postexertion fatigue. It might be concluded that a single exercise test is insufficient to reliably demonstrate functional impairment in people with CFS. A second test might be necessary to document the atypical recovery response and protracted fatigue possibly unique to CFS, which can severely limit productivity in the home and workplace. Post a Rapid Response to this article at: ptjournal.apta.org
1484 f Physical Therapy Volume 93 Number 11 November 2013 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 Metabolic and Workload Measurements in Chronic Fatigue Syndrome Research Report
Discriminative Validity of Metabolic
Figure 1. ˙ andMeasurements Workload of oxygen consumption (VO2) at peak Measurements exercise (A) and at the ventilatory threshold (B) in participants for with chronic fatigue syndrome (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise Identifyingtest 2 (gold bars). Error bars represent 1 People standard deviation. With Chronic other research using the same proto- between the CFS group (Xϭ1.25) CFS group was working at or close to col to measure physiological and the control group (Xϭ0.98).7 maximal exertion, whereas the con- Fatigueresponses in people with Syndrome CFS.30,31 A On the basis of accepted criteria for trol group was not. These data have more recent study in which the aer- evaluating effort during CPET, a peak important implications for physical Christopherobic power test was R. used Snell, as an Staci exer- R.RER Stevens, of greater Toddthan 1.10 E. indicates Davenport,therapists J. Mark because Van even Ness low-level cise challenge to study pain and PEM excellent effort, and a peak RER of exercise assessments and interven- C.R. Snell, PhD, Department of in people with CFS revealed signifi- less than 1.0 reflects submaximal tions can involve nearly maximal cant differences in the peak RER effort.8,21 The indication is that the exertion by people with CFS. Sport Sciences, University of the DayReduced 1 functional capacity and postexertion fatigue after physical Pacific, Stockton, California, and Background. Workwell Foundation, Ripon, activity are hallmark symptoms of chronic fatigue syndrome (CFS) and may even California. qualify for biomarker status. That these symptoms are often delayed may explain the equivocal results for clinical cardiopulmonary exercise testing in people with CFS. S.R. Stevens, MA, Workwell Foundation. Test reproducibility in people who are healthy is well documented. Test reproduc- ibility may not be achievable in people with CFS because of delayed symptoms. T.E. Davenport, PT, DPT, OCS, Department of Physical Therapy, University of the Pacific, 3601 Objective. The objective of this study was to determine the discriminative validity Pacific Ave, Stockton, CA 95211 of objective measurements obtained during cardiopulmonary exercise testing to (USA), and Workwell Foundation. distinguish participants with CFS from participants who did not have a disability but Address all correspondence to were sedentary. Dr Davenport at: tdavenport@ pacific.edu. Design. A prospective cohort study was conducted. J.M. Van Ness, PhD, Department Figure 2. of Sport Sciences, University of the Methods.Measurements of workloadGas at exchange peak exercise (A) data, and at the workloads, ventilatory threshold and (B) inrelated participants physiological with chronic fatigue syndrome parameters Pacific, and Workwell Foundation. (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise test 2 (gold bars). wereError bars compared represent 1 standard in 51 deviation. participants with CFS and 10 control participants, all women, [Snell CR, Stevens SR, Davenport for 2 maximal exercise tests separated by 24 hours. TE, Van Ness JM. Discriminative November 2013 Volume 93 Number 11 Physical Therapy f 1489 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 validity of metabolic and workload Multivariate analysis showed no significant differences between control measurements for identifying Results. people with chronic fatigue syn- participants and participants with CFS for test 1. However, for test 2, participants drome. Phys Ther. 2013;93: with CFS achieved significantly lower values for oxygen consumption and workload 1484–1492.] at peak exercise and at the ventilatory or anaerobic threshold. Follow-up classification ©2013AmericanPhysicalTherapy analysis differentiated between groups with an overall accuracy of 95.1%. Association Limitations. Only individuals with CFS who were able to undergo exercise Published Ahead of Print: June 27, 2013 testing were included in this study. Individuals who were unable to meet the criteria Accepted: June 23, 2013 for maximal effort during both tests, were unable to complete the 2-day protocol, or Submitted: October 27, 2011 displayed overt cardiovascular abnormalities were excluded from the analysis.
Conclusions. The lack of any significant differences between groups for the first exercise test would appear to support a deconditioning hypothesis for CFS symp- toms. However, the results from the second test indicated the presence of CFS-related postexertion fatigue. It might be concluded that a single exercise test is insufficient to reliably demonstrate functional impairment in people with CFS. A second test might be necessary to document the atypical recovery response and protracted fatigue possibly unique to CFS, which can severely limit productivity in the home and workplace. Post a Rapid Response to this article at: ptjournal.apta.org
1484 f Physical Therapy Volume 93 Number 11 November 2013 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 Metabolic and Workload Measurements in Chronic Fatigue Syndrome Research Report
Discriminative Validity of Metabolic
Figure 1. ˙ andMeasurements Workload of oxygen consumption (VO2) at peak Measurements exercise (A) and at the ventilatory threshold (B) in participants for with chronic fatigue syndrome (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise Identifyingtest 2 (gold bars). Error bars represent 1 People standard deviation. With Chronic other research using the same proto- between the CFS group (Xϭ1.25) CFS group was working at or close to col to measure physiological and the control group (Xϭ0.98).7 maximal exertion, whereas the con- Fatigueresponses in people with Syndrome CFS.30,31 A On the basis of accepted criteria for trol group was not. These data have more recent study in which the aer- evaluating effort during CPET, a peak important implications for physical Christopherobic power test was R. used Snell, as an Staci exer- R.RER Stevens, of greater Toddthan 1.10 E. indicates Davenport,therapists J. Mark because Van even Ness low-level cise challenge to study pain and PEM excellent effort, and a peak RER of exercise assessments and interven- C.R. Snell, PhD, Department of in people with CFS revealed signifi- less than 1.0 reflects submaximal tions can involve nearly maximal cant differences in the peak RER effort.8,21 The indication is that the exertion by people with CFS. Sport Sciences, University of the Reduced functional capacity andDay postexertion 2: Crash fatigue after physical Pacific, Stockton, California, and Background. Workwell Foundation, Ripon, activity are hallmark symptoms of chronic fatigue syndrome (CFS) and may even California. qualify for biomarker status. That these symptoms are often delayed may explain the equivocal results for clinical cardiopulmonary exercise testing in people with CFS. S.R. Stevens, MA, Workwell Foundation. Test reproducibility in people who are healthy is well documented. Test reproduc- ibility may not be achievable in people with CFS because of delayed symptoms. T.E. Davenport, PT, DPT, OCS, Department of Physical Therapy, University of the Pacific, 3601 Objective. The objective of this study was to determine the discriminative validity Pacific Ave, Stockton, CA 95211 of objective measurements obtained during cardiopulmonary exercise testing to (USA), and Workwell Foundation. distinguish participants with CFS from participants who did not have a disability but Address all correspondence to were sedentary. Dr Davenport at: tdavenport@ pacific.edu. Design. A prospective cohort study was conducted. J.M. Van Ness, PhD, Department Figure 2. of Sport Sciences, University of the Methods.Measurements of workloadGas at exchange peak exercise (A) data, and at the workloads, ventilatory threshold and (B) inrelated participants physiological with chronic fatigue syndrome parameters Pacific, and Workwell Foundation. (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise test 2 (gold bars). wereError bars compared represent 1 standard in 51 deviation. participants with CFS and 10 control participants, all women, [Snell CR, Stevens SR, Davenport for 2 maximal exercise tests separated by 24 hours. TE, Van Ness JM. Discriminative November 2013 Volume 93 Number 11 Physical Therapy f 1489 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 validity of metabolic and workload Multivariate analysis showed no significant differences between control measurements for identifying Results. people with chronic fatigue syn- participants and participants with CFS for test 1. However, for test 2, participants drome. Phys Ther. 2013;93: with CFS achieved significantly lower values for oxygen consumption and workload 1484–1492.] at peak exercise and at the ventilatory or anaerobic threshold. Follow-up classification ©2013AmericanPhysicalTherapy analysis differentiated between groups with an overall accuracy of 95.1%. Association Limitations. Only individuals with CFS who were able to undergo exercise Published Ahead of Print: June 27, 2013 testing were included in this study. Individuals who were unable to meet the criteria Accepted: June 23, 2013 for maximal effort during both tests, were unable to complete the 2-day protocol, or Submitted: October 27, 2011 displayed overt cardiovascular abnormalities were excluded from the analysis.
Conclusions. The lack of any significant differences between groups for the first exercise test would appear to support a deconditioning hypothesis for CFS symp- toms. However, the results from the second test indicated the presence of CFS-related postexertion fatigue. It might be concluded that a single exercise test is insufficient to reliably demonstrate functional impairment in people with CFS. A second test might be necessary to document the atypical recovery response and protracted fatigue possibly unique to CFS, which can severely limit productivity in the home and workplace. Post a Rapid Response to this article at: ptjournal.apta.org
1484 f Physical Therapy Volume 93 Number 11 November 2013 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 Metabolic and Workload Measurements in Chronic Fatigue Syndrome Research Report
Discriminative Validity of Metabolic
Figure 1. ˙ andMeasurements Workload of oxygen consumption (VO2) at peak Measurements exercise (A) and at the ventilatory threshold (B) in participants for with chronic fatigue syndrome (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise Identifyingtest 2 (gold bars). Error bars represent 1 People standard deviation. With Chronic other research using the same proto- between the CFS group (Xϭ1.25) CFS group was working at or close to col to measure physiological and the control group (Xϭ0.98).7 maximal exertion, whereas the con- Fatigueresponses in people with Syndrome CFS.30,31 A On the basis of accepted criteria for trol group was not. These data have more recent study in which the aer- evaluating effort during CPET, a peak important implications for physical Christopherobic power test was R. used Snell, as an Staci exer- R.RER Stevens, of greater Toddthan 1.10 E. indicates Davenport,therapists J. Mark because Van even Ness low-level cise challenge to study pain and PEM excellent effort, and a peak RER of exercise assessments and interven- C.R. Snell, PhD, Department of in people with CFS revealed signifi- less than 1.0 reflects submaximal tions can involve nearly maximal cant differences in the peak RER effort.8,21 The indication is that the exertion by people with CFS. Sport Sciences, University of the Reduced functional capacity andDay postexertion 2: Crash fatigue after physical Pacific, Stockton, California, and Background. Workwell Foundation, Ripon, activity are hallmark symptoms of chronic fatigue syndrome (CFS) and may even California. qualify for biomarker status. That these symptoms are often delayed may explain the equivocal results for clinical cardiopulmonary exercise testing in people with CFS. S.R. Stevens, MA, Workwell Foundation. Test reproducibility in people who are healthy is well documented. Test reproduc- ibility may not be achievable in people with CFS because of delayed symptoms. T.E. Davenport, PT, DPT, OCS, Department of Physical Therapy, University of the Pacific, 3601 Objective. The objective of this study was to determine the discriminative validity Pacific Ave, Stockton, CA 95211 of objective measurements obtained during cardiopulmonary exercise testing to (USA), and Workwell Foundation. distinguish participants with CFS from participants who did not have a disability but Address all correspondence to were sedentary. Dr Davenport at: tdavenport@ pacific.edu. Design. A prospective cohort study was conducted. J.M. Van Ness, PhD, Department Figure 2. of Sport Sciences, University of the Methods.Measurements of workloadGas at exchange peak exercise (A) data, and at the workloads, ventilatory threshold and (B) inrelated participants physiological with chronic fatigue syndrome parameters Pacific, and Workwell Foundation. (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise test 2 (gold bars). wereError bars compared represent 1 standard in 51 deviation. participants with CFS and 10 control participants, all women, [Snell CR, Stevens SR, Davenport for 2 maximal exercise tests separated by 24 hours. TE, Van Ness JM. Discriminative November 2013 Volume 93 Number 11 Physical Therapy f 1489 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 validity of metabolic and workload Multivariate analysis showed no significant differences between control measurements for identifying Results. people with chronic fatigue syn- participants and participants with CFS for test 1. However, for test 2, participants drome. Phys Ther. 2013;93: with CFS achieved significantly lower values for oxygen consumption and workload 1484–1492.] at peak exercise and at the ventilatory or anaerobic threshold. Follow-up classification ©2013AmericanPhysicalTherapy analysis differentiated between groups with an overall accuracy of 95.1%. Association Limitations. Only individuals with CFS who were able to undergo exercise Published Ahead of Print: June 27, 2013 testing were included in this study. Individuals who were unable to meet the criteria Accepted: June 23, 2013 for maximal effort during both tests, were unable to complete the 2-day protocol, or Submitted: October 27, 2011 displayed overt cardiovascular abnormalities were excluded from the analysis.
Conclusions. The lack of any significant differences between groups for the first exercise test would appear to support a deconditioning hypothesis for CFS symp- toms. However, the results from the second test indicated the presence of CFS-related postexertion fatigue. It might be concluded that a single exercise test is insufficient to reliably demonstrate functional impairment in people with CFS. A second test might be necessary to document the atypical recovery response and protracted fatigue possibly unique to CFS, which can severely limit productivity in the home and workplace. Post a Rapid Response to this article at: ptjournal.apta.org
1484 f Physical Therapy Volume 93 Number 11 November 2013 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 Metabolic and Workload Measurements in Chronic Fatigue Syndrome Research Report
Discriminative Validity of Metabolic
Figure 1. ˙ andMeasurements Workload of oxygen consumption (VO2) at peak Measurements exercise (A) and at the ventilatory threshold (B) in participants for with chronic fatigue syndrome (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise Identifyingtest 2 (gold bars). Error bars represent 1 People standard deviation. With Chronic other research using the same proto- between the CFS group (Xϭ1.25) CFS group was working at or close to col to measure physiological and the control group (Xϭ0.98).7 maximal exertion, whereas the con- Fatigueresponses in people with Syndrome CFS.30,31 A On the basis of accepted criteria for trol group was not. These data have more recent study in which the aer- evaluating effort during CPET, a peak important implications for physical Christopherobic power test was R. used Snell, as an Staci exer- R.RER Stevens, of greater Toddthan 1.10 E. indicates Davenport,therapists J. Mark because Van even Ness low-level cise challenge to study pain and PEM excellent effort, and a peak RER of exercise assessments and interven- C.R. Snell, PhD, Department of in people with CFS revealed signifi- less than 1.0 reflects submaximal tions can involve nearly maximal cant differences in the peak RER effort.8,21 The indication is that the exertion by people with CFS. Sport Sciences, University of the Reduced functional capacity andDay postexertion 2: Crash fatigue after physical Pacific, Stockton, California, and Background. Workwell Foundation, Ripon, activity are hallmark symptoms of chronic fatigue syndrome (CFS) and may even California. qualify for biomarker status. That these symptoms are often delayed may explain the equivocal results for clinical cardiopulmonary exercise testing in people with CFS. S.R. Stevens, MA, Workwell Foundation. Test reproducibility in people who are healthy is well documented. Test reproduc- ibility may not be achievable in people with CFS because of delayed symptoms. T.E. Davenport, PT, DPT, OCS, Department of Physical Therapy, University of the Pacific, 3601 Objective. The objective of this study was to determine the discriminative validity Pacific Ave, Stockton, CA 95211 of objective measurements obtained during cardiopulmonary exercise testing to (USA), and Workwell Foundation. distinguish participants with CFS from participants who did not have a disability but Address all correspondence to were sedentary. Dr Davenport at: tdavenport@ pacific.edu. Design. A prospective cohort study was conducted. J.M. Van Ness, PhD, Department Figure 2. of Sport Sciences, University of the Methods.Measurements of workloadGas at exchange peak exercise (A) data, and at the workloads, ventilatory threshold and (B) inrelated participants physiological with chronic fatigue syndrome parameters Pacific, and Workwell Foundation. (CFS) and control participants during cardiopulmonary exercise test 1 (blue bars) and cardiopulmonary exercise test 2 (gold bars). wereError bars compared represent 1 standard in 51 deviation. participants with CFS and 10 control participants, all women, [Snell CR, Stevens SR, Davenport for 2 maximal exercise tests separated by 24 hours. TE, Van Ness JM. Discriminative November 2013 Volume 93 Number 11 Physical Therapy f 1489 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 validity of metabolic and workload Multivariate analysis showed no significant differences between control measurements for identifying Results. people with chronic fatigue syn- participants and participants with CFS for test 1. However, for test 2, participants drome. Phys Ther. 2013;93: with CFS achieved significantly lower values for oxygen consumption and workload 1484–1492.] at peak exercise and at the ventilatory or anaerobic threshold. Follow-up classification ©2013AmericanPhysicalTherapy analysis differentiated between groups with an overall accuracy of 95.1%. Association Limitations. Only individuals with CFS who were able to undergo exercise Published Ahead of Print: June 27, 2013 testing were included in this study. Individuals who were unable to meet the criteria Accepted: June 23, 2013 for maximal effort during both tests, were unable to complete the 2-day protocol, or Submitted: October 27, 2011 displayed overt cardiovascular abnormalities were excluded from the analysis.
Conclusions. The lack of any significant differences between groups for the first exercise test would appear to support a deconditioning hypothesis for CFS symp- toms. However, the results from the second test indicated the presence of CFS-related postexertion fatigue. It might be concluded that a single exercise test is insufficient to reliably demonstrate functional impairment in people with CFS. A second test might be necessary to document the atypical recovery response and protracted fatigue possibly unique to CFS, which can severely limit productivity in the home and workplace. Post a Rapid Response to this article at: ptjournal.apta.org
1484 f Physical Therapy Volume 93 Number 11 November 2013 Downloaded from http://ptjournal.apta.org/ by Eresources Unit Library Processing Unit on May 31, 2015 CHRONIC PAIN: SENSITIVITY SHIFT ARTHRITIS & RHEUMATISM Vol. 46, No. 5, May 2002, pp 1333–1343 ARTHRITIS & RHEUMATISM Vol. 46, No. 5, May 2002, pp 1333–1343 Functional Magnetic Resonance Imaging Evidence of FunctionalAugmented Magnetic Pain ProcessingResonance in Imaging Fibromyalgia Evidence of Augmented Pain Processing in Fibromyalgia
Richard H. Gracely,1 Frank Petzke,2 Julie M. Wolf,3 and Daniel J. Clauw2 Richard H. Gracely,1 Frank Petzke,2 Julie M. Wolf,3 and Daniel J. Clauw2
Objective. To use functional magnetic resonance with the same amount of pressure that caused pain in imaging (fMRI) to evaluate the pattern of cerebral patients resulted in only 2 regions of increased signal, activation during the application of painful pressure neither of which coincided with a region of activation in and determine whether this pattern is augmented in patients. Statistical comparison of the patient and con- patients with fibromyalgia (FM) compared with con- trol groups receiving similar stimulus pressures re- trols. vealed 13 regions of greater activation in the patient Methods. Pressure was applied to the left thumb- group. In contrast, similar stimulus pressures produced nail beds of 16 right-handed patients with FM and 16 only 1 region of greater activation in the control group. right-handed matched controls. Each FM patient un- Conclusion. The fact that comparable subjectively derwent fMRI while moderately painful pressure was painful conditions resulted in activation patterns that being applied. The functional activation patterns in FM were similar in patients and controls, whereas similar patients were compared with those in controls, who were pressures resulted in no common regions of activation tested under 2 conditions: the “stimulus pressure con- and greater effects in patients, supports the hypothesis trol” condition, during which they received an amount that FM is characterized by cortical or subcortical of pressure similar to that delivered to patients, and the augmentation of pain processing. “subjective pain control” condition, during which the intensity of stimulation was increased to deliver a Fibromyalgia (FM) is characterized by chronic subjective level of pain similar to that experienced by widespread pain (involving all 4 quadrants of the body as patients. well as the axial skeleton) and diffuse tenderness (1). Results. Stimulation with adequate pressure to Population-based studies have demonstrated that FM cause similar pain in both groups resulted in 19 regions affects ϳ2–4% of the population, with a very similar of increased regional cerebral blood flow in healthy prevalence in at least 5 industrialized countries (2,3). controls and 12 significant regions in patients. In- The etiology of FM remains elusive, although there is creased fMRI signal occurred in 7 regions common to support for the notion that altered central pain process- both groups, and decreased signal was observed in 1 ing is a factor in the presentation of this disease. The common region. In contrast, stimulation of controls development of functional brain imaging techniques Supported in part by the National Fibromyalgia Research provides an opportunity to examine central pain pro- Association, by Department of Army grant DAMD 17-00-2-0018, and cessing in patients with FM. by the National Institute of Dental and Craniofacial Research, Divi- Although the clinical diagnosis of FM is based on sion of Intramural Research. 1Richard H. Gracely, PhD: National Institute of Dental and detecting 11 of 18 tender points (regions that are painful Craniofacial Research, NIH, Bethesda, Maryland, and Georgetown when manually palpated with 4 kg of pressure), in- Chronic Pain and Fatigue Research Center, Georgetown University, Washington, DC; 2Frank Petzke, MD, Daniel J. Clauw, MD: George- creased sensitivity to pressure in this condition extends town University Medical Center, and Georgetown Chronic Pain and beyond tender points and involves the entire body (4–7). Fatigue Research Center, Georgetown University, Washington, DC; In aggregate, psychophysical studies demonstrate that 3Julie M. Wolf, BA: National Institute of Dental and Craniofacial Research, NIH, Bethesda, Maryland. patients with FM and control subjects generally detect Address correspondence and reprint requests to Daniel J. sensory stimulation (electrical, thermal, mechanical) at Clauw, MD, University of Michigan Medical Center, 5510 MSRB I, the same levels, but the level at which these stimuli Ann Arbor, MI 48109. Submitted for publication May 17, 2001; accepted in revised become unpleasant or noxious (pain threshold) is lower form December 19, 2001. in patients (8–11).
1333 FIBROMYALGIA
๏ Excessive sensory innervation to A-V shunts
๏ Blood flow dysregulation
๏ Symptoms bs_bs_banner
Pain Medicine 2013; 14: 895–915 Wiley Periodicals, Inc.
MUSCULOSKELETAL SECTION
Original Research Article Excessive Peptidergic Sensory Innervation of Cutaneous Arteriole–Venule Shunts (AVS) in the Palmar Glabrous Skin of Fibromyalgia Patients: Implications for Widespread Deep Tissue Pain and Fatigue
Phillip J. Albrecht, PhD,*,† Quanzhi Hou, MD PhD,*,† Charles E. Argoff, MD,‡ James R. Storey, MD,§ James P. Wymer, MD PhD,‡ and Frank L. Rice, PhD*,†
Conclusions. The excessive sensory innervation to the glabrous skin AVS is a likely source of severe pain and tenderness in the hands of FM patients. Importantly, glabrous AVS regulate blood flow to the skin in humans for thermoregulation and to other tissues such as skeletal muscle during periods of increased metabolic demand. Therefore, blood flow dysregulation as a result of excessive innervation to AVS would likely contribute to the widespread deep pain and fatigue of FM. SNRI compounds may provide partial therapeutic benefit by enhancing the impact of sympathetically mediated inhibitory modulation of the excess sensory innervation. Am J Clin Dermatol DOI 10.1007/s40257-015-0144-6
REVIEW ARTICLE
The Dermatological Manifestations of Postural Tachycardia Syndrome: A Review with Illustrated Cases
1 1 Hao Huang • Anna DePold Hohler
Fig. 1 Evanescent hyperemia manifesting on the upper chest (a) and lower neck (b) of a patient with postural tachycardia syndrome Fig. 1 Evanescent hyperemia manifesting on the upper chest (a) and lower neck (b) of a patientAm J Clin with Dermatol postural tachycardia syndrome DOI 10.1007/s40257-015-0144-6
REVIEW ARTICLE
The Dermatological Manifestations of Postural Tachycardia Syndrome: A Review with Illustrated Cases
1 1 Hao Huang • Anna DePold Hohler
Fig. 2 Raynaud’s phenomenon in a patient with postural tachycardia syndrome. Note the change in plantar and digital skin colors from a (during the episode) to b (resolved, 3 min after a). Flares of Raynaud’s phenomenon in this particular patient are exacerbated by cold exposure
Fig. 3 Livedo reticularis in a patient with postural tachycardia syndrome. Livedo reticularis improved upon administration of midodrine ME/CFS: COMPLEX CHRONIC DISEASE
๏ COMT polymorphism & IgG subclass ๏ Over 12,600 epigenetic modifications levels ๏ fMRI evidence of pain amplification ๏ Microbiome disruption ๏ Immunologic changes ๏ Low natural killer cell cytotoxicity ๏ Increased activated T lymphocytes
๏ Increased circulating cytokines ๏ Sympathetic Nervous System dysregulation ๏ NMDA receptor activation & Gaba depletion ๏ Free radicals / oxidative stress FM & ME/CFS PRIMARY CARE TOOLKIT Case 1
๏ 36 female ๏ Motor vehicle collision Jan 2008 – soft tissue injures ๏ Neck/shoulder/upper back pain ๏ Intermittent paresthesias hand and arms &“lightning" pain in legs ๏ Seen by Neurology - MRI Normal, EMG Normal – ? Somatiform ๏ Pain now widespread – neck back and shoulders most bothersome ๏ Fatigue, headaches, insomnia, lightheaded, night sweats ๏ IBS symptoms worse ๏ Decreased memory, information overload ๏ Light and sound sensitivity
๏ PMH ๏ PTSD ๏ Irritable Bowel Syndrome ๏ Adverse Childhood events (ACE); abuse/trauma in childhood
ME/CFS and FM Toolkit
Assessment Tool: Diagnosis, Management, and Plan
Recommended Initial Patient Work-up
Patient Copy of Plan
PATIENT HANDOUT 1 - CSS one-page summary
PATIENT HANDOUT 2 - BC Women’s Website
PATIENT HANDOUT 3 - Pacing & Self-Management of CFS & FM
PATIENT HANDOUT 4 - Anti-inflammatory diet
PATIENT HANDOUT 5 - Sleep hygiene instructions
Medication and Treatment Handouts
Slides from presentation/workshop
COMPLEX CHRONIC DISEASES PROGRAM
Baseline Testing and Evaluation of Patients