Best Practices Guidelines for Acute Pain Managment in Trauma Patients

Total Page:16

File Type:pdf, Size:1020Kb

Best Practices Guidelines for Acute Pain Managment in Trauma Patients ACS TRAUMA QUALITY PROGRAMS BEST PRACTICES GUIDELINES FOR ACUTE PAIN MANAGEMENT IN TRAUMA PATIENTS Supported by the American Society of Anesthesiologists (ASA) Administrative Council* 530-NonDOH Released November 2020 Table of Contents Introduction .............................................................................................................................................. 4 Pain Physiology ........................................................................................................................................ 6 Pain Assessment ....................................................................................................................................10 Unidimensional Assessment Tools for Cognitively Intact Adults ............................ 11 Assessment Tools for Adult Patients with Cognitive Impairment ..........................12 Functional Pain Assessment Tools ......................................................................................14 Pain Assessment in Older Adults .........................................................................................16 Pediatric Pain Assessment Tools ..........................................................................................16 Pain Reassessment ...................................................................................................................18 Nonpharmacologic Pain Management .........................................................................................21 Cognitive Strategies .................................................................................................................22 Physical Strategies ....................................................................................................................25 Pharmacologic Analgesia ...................................................................................................................31 Acetaminophen .........................................................................................................................32 N-methyl-D-aspartate (NMDA) Antagonists ...................................................................35 Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) ..........................................................36 Opioids..........................................................................................................................................36 Adjuvant Analgesics.................................................................................................................38 Regional Analgesia ..............................................................................................................................43 Neuraxial Techniques: Epidural and Paravertebral Blocks .........................................44 Ultrasound-Guided Fascial Plane Blocks ..........................................................................45 Extremity Blocks: Brachial Plexus, Femoral, and Sciatic ..............................................49 Local Anesthetic Systemic Toxicity ....................................................................................49 Multimodal Pain Management ........................................................................................................52 Pain Management in the Prehospital Setting ............................................................................58 Pain Management in the Emergency Department ..................................................................61 Pain Management in Perioperative Care .....................................................................................64 Preoperative Care .....................................................................................................................65 Intraoperative Care ...................................................................................................................65 Pain Management in the Intensive Care Unit .............................................................................68 Pharmacologic Analgesia ......................................................................................................70 2 Transition Out of Intensive Care...........................................................................................71 Pain Management at Hospital Discharge ....................................................................................74 Assessment Considerations ..................................................................................................75 Considerations for Pharmacologic Analgesics ...............................................................76 Pain Management in Older Adults .................................................................................................81 Medications in the Aging Population ................................................................................82 Pain Management in Children .........................................................................................................86 Nonpharmacologic Pain Management .............................................................................87 Pharmacologic Analgesia .......................................................................................................88 Regional Analgesia ...................................................................................................................88 Pain Management in Pregnant Patients ......................................................................................93 Nonpharmacologic Pain Management .............................................................................94 Pharmacologic Analgesia .......................................................................................................94 Pain Management in Patients with Depression ........................................................................98 Pain Management in Patients on Chronic Opioid Therapy or with Opioid Use Disorder ..........................................................................................................................................101 Impact on Patient Outcomes ..............................................................................................102 Assessment Considerations ...............................................................................................103 Management of Patients on Prescribed Opioid Therapy for Chronic Pain ........103 Management of Patients with Untreated OUD ............................................................103 Management of Patients Receiving Treatment for OUD ......................................... 104 Coordination with Chronic Pain or Primary Care Provider .......................................105 Pain Management at End-of-Life ..................................................................................................107 Principles of Medication Management .......................................................................... 108 Drugs and Dosages ............................................................................................................... 109 Implementing the Best Practices Guideline for Acute Pain Management in Trauma Patients ..............................................................................................................................110 Recommended Trauma Performance Improvement Guideline Integration ................114 Acronyms ...............................................................................................................................................117 Appendix A: Doloplus-2 Scale.........................................................................................................118 Expert Panel ..........................................................................................................................................119 3 function in geriatric and pregnant INTRODUCTION patients; and pain management goals can change drastically at end-of-life. The majority of trauma victims experience pain.1 Acute pain can Pain management changed over the last impact respiratory function, increase decade, in large part due to the opioid metabolic demand, impair wound crisis in the United States. The scope healing, suppress immunity, and of the opioid crisis—and the impact of reduce mobility. Inadequate acute prescription drugs—resulted in a call pain management after trauma delays from the American Medical Association return to work, lowers quality of life, and (AMA), the Orthopaedic Trauma increases post-traumatic stress disorder Association (OTA), and the American (PTSD) risk.2 Poorly managed acute College of Surgeons (ACS), among others, 4,5,6 pain also increases the risk of chronic to minimize opioid use. New research pain development. Nearly two-thirds supporting the safety and efficacy of of patients report at least moderate nonopioid analgesia drives innovative pain 12 months after injury, and three practices within trauma centers across in four report pain interference with the country, pushing providers and activities of daily living, such as social programs to deliver better care. engagement, work, and cognitive and This publication is intended to provide 3 emotional function. Pain is associated an evidence-based, practical guide with decreased self-efficacy and to acute pain management of the increased risk of depression. This effect trauma patient. It begins with an may be more pronounced after trauma, overview of pain physiology, pain because traumatic events cause distress
Recommended publications
  • Rhomboid Intercostal Block Combined with Interscalene Nerve Block for Sternoclavicular Joint Reconstruction
    CASE REPORT Ochsner Journal 21:214–216, 2021 ©2021 by the author(s); Creative Commons Attribution License (CC BY) DOI: 10.31486/toj.20.0020 Rhomboid Intercostal Block Combined With Interscalene Nerve Block for Sternoclavicular Joint Reconstruction Chihiro Toda, MD,1 Rajnish K. Gupta, MD,2 Hesham Elsharkawy, MD, MBA, MSc, FASA3 1Department of Anesthesiology and Pain Management, Cleveland Clinic, Cleveland, OH 2Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 3MetroHealth Pain and Healing Center, Associate Professor of Anesthesiology, Case Western University, Outcome Research Consortium, Cleveland Clinic, Cleveland, OH Background: Rhomboid intercostal block is a newer technique for chest wall analgesia and can be an effective alternative to thoracic epidurals and paravertebral blocks. We performed a rhomboid intercostal block after sternoclavicular joint reconstruction surgery. Case Report: A healthy 26-year-old male who had chronic right sternoclavicular joint instability was scheduled for right medial clavicle resection with sternoclavicular joint allograft reconstruction. We performed a right interscalene single-shot nerve block fol- lowed by a rhomboid intercostal block with catheter placement under ultrasound guidance. The patient’s pain was well controlled postoperatively with minimal use of opioids. Conclusion: Rhomboid intercostal block with brachial plexus block is a potential option for analgesia after sternoclavicular joint reconstruction surgery. Keywords: Anesthesiology, fascia, nerve block,
    [Show full text]
  • Clinical Policy: Nerve Blocks for Pain Management Reference Number: CP.MP.170 Coding Implications Last Review Date: 08/20 Revision Log
    Clinical Policy: Nerve Blocks for Pain Management Reference Number: CP.MP.170 Coding Implications Last Review Date: 08/20 Revision Log See Important Reminder at the end of this policy for important regulatory and legal information. Description Nerve blocks are the temporary interruption of conduction of impulses in peripheral nerves or nerve trunks created by the injection of local anesthetic solutions. They can be used to identify the source of pain or to treat pain. Note: For sacroiliac nerve block and radiofrequency neurotomy, please refer to CP.MP.166 Sacroiliac Joint Interventions Policy/Criteria It is the policy of health plans affiliated with Centene Corporation® that invasive pain management procedures performed by a physician are medically necessary when the relevant criteria are met and the patient receives only one procedure per visit, with or without radiographic guidance. Table of Contents I. Occipital Nerve Block............................................................................................................. 1 II. Sympathetic Nerve Blocks ...................................................................................................... 2 III. Celiac Plexus Nerve Block/Neurolysis ................................................................................... 3 IV. Intercostal Nerve Block/Neurolysis ........................................................................................ 3 V. Genicular Nerve Blocks and Genicular Nerve Radiofrequency Neurotomy .......................... 3 VI. Peripheral nerve
    [Show full text]
  • Intercostal Nerve Block
    Intercostal Nerve Block Patients with certain disease processes or thoracic surgery may suffer from rib pain afterwards. Intercostal Nerve Blocks provide an injection of local anesthetic directly into the area of pain to deaden the nerve(s). A steroid medication may also be injected to reduce the inflammation. If the pain returns, the nerves may be locally destroyed by the injection of absolute alcohol or radiofrequency ablation. How is This Procedure Performed? The patient will be brought to the procedure room and be comfortably placed on the procedure table. The injection area will be sterilized and drapes will be put in place to keep the area clean. A local anesthetic, or numbing agent, will be administered to lessen discomfort from the actual injection. A needle will be inserted into the appropriate point of interest and guided to the precise nerve using fluoroscopy "real-time" imaging. A dye will be injected to confirm the accurate location and then the medication will be injected. Once the injection is complete, the skin will be cleaned once more and a band-aid applied. What Should I Expect After the Injection? Patients may be monitored for a short time to ensure that the procedure was received well. The patient may have slight discomfort from the fluid pressure, but should have maximum benefit from the medicine within approximately seven days. There may be immediate relief, or numbness, from the local anesthetic that will wear off shortly. A driver should accompany the patient to the facility to take them home safely. Please consult your physician if you experience any side effect, such as painful headache; fever of over 101; loss of function or feeling in arms or legs; loss of bowel or bladder control; and severe pain not controlled by over-the-counter pain medications..
    [Show full text]
  • Summary of Product Characteristics
    Health Products Regulatory Authority Summary of Product Characteristics 1 NAME OF THE MEDICINAL PRODUCT Lidocaine Hydrochloride 2% w/v Solution for Injection 2 QUALITATIVE AND QUANTITATIVE COMPOSITION Each ml of solution for injection contains 20 mg lidocaine hydrochloride (as monohydrate) corresponding to 16.22 mg lidocaine. Each 5 ml of solution for injection contains 100 mg lidocaine hydrochloride. Each 10 ml of solution for injection contains 200 mg lidocaine hydrochloride. Each 20 ml of solution for injection contains 400 mg lidocaine hydrochloride. Excipient(s) with known effect Each ml of solution for injection contains approximately 0. 093 mmol sodium. For the full list of excipients, see section 6.1. 3 PHARMACEUTICAL FORM Solution for injection. A clear, colourless aqueous solution, practically free of visible particles. pH of solution 5.0 - 7.0. Osmolality of solution 280 – 340 mOsm. 4 CLINICAL PARTICULARS 4.1 Therapeutic Indications Local anaesthesia by surface infiltration, regional (minor and major nerve block), epidural and caudal routes, dental anaesthesia, either alone or in combination with adrenaline. 4.2 Posology and method of administration Posology The dosage should be adjusted according to the response of the patient and the site of administration. The lowest concentration and smallest dose producing the required effect should be given. The maximum dose for healthy adults should not exceed 200 mg. The volume of the solution used plays a role in the size of the area of spread of anaesthesia. In case it is desirable to administer a larger volume with a lower concentration, than the standard solution has to be diluted with a saline solution (NaCl 0.9 %).
    [Show full text]
  • Foreword Pain Handbook
    This document was developed by the Surgical and Emergency Medicine Services Unit, Medical Development Section of the Medical Development Division, Ministry of Health Malaysia and the Editorial Team for the Pain Management Handbook Published in October 2013 A catalogue record of this document is available from the library and Resource Unit of the Institute of Medical Research, Ministry of Health; MOH/P/PAK/257.12 (HB), MOH Portal: www.moh.gov.my And also available from the National Library of Malaysia; ISBN 978-967-0399-38-6 All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means or stored in a database or retrieval system without prior written permission from the Director of Medical Development Division, Ministry of Health Malaysia (MOH). CONTENTS Editorial Team/Contributors viii Foreword ix Preface x CHAPTER 1: PRINCIPLES OF PAIN MANAGEMENT Objectives of Pain Management Services Principles of Pain Management CHAPTER 2: PHYSIOLOGY OF PAIN Definition of pain Pain pathway Problems of postoperative pain Spectrum of pain CHAPTER 3: PHARMACOLOGY OF ANALGESIC DRUGS Opioid Analgesics Mechanism of Action Pharmacokinetics of Opioids Pharmacodynamics of Opioids Indications Precautions Side Effects Dosages Important Points about Commonly Used Opioids Nonsteroidal anti-inflammatory drugs and cyclooxygenase-2 selective inhibitors Mechanism of action Indications Contraindications Side effects Dosages Local anaesthetics Mechanism of action Pharmacokinetics Indications Contraindications Toxicity of
    [Show full text]
  • Observational Study for Laryngeal Mask Anesthesia Combined with Nerve Block in Internal Fxation for Rib Fractures
    Observational study for laryngeal mask anesthesia combined with nerve block in internal xation for rib fractures Jun Cao ( [email protected] ) Shanghai Sixth People's Hospital https://orcid.org/0000-0002-2645-9245 Junfeng Zhang Shanghai Sixth Peoples Hospital Xiaoyun Gao Shanghai Sixth Peoples Hospital Xiaoli Zhang Shanghai Sixth Peoples Hospital Jing Li Shanghai Sixth Peoples Hospital Research article Keywords: Laryngeal mask anesthesia; Non-tracheal intubation; Thoracic paravertebral block; Erector spinae plane block; Rib fractures. Posted Date: November 11th, 2019 DOI: https://doi.org/10.21203/rs.2.17107/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Version of Record: A version of this preprint was published on July 15th, 2020. See the published version at https://doi.org/10.1186/s12871-020-01082-y. Page 1/16 Abstract To evaluate the safety and effectiveness of laryngeal mask(LMA) anesthesia combined with nerve block in rib fractures internal xation, twenty patients with unilateral isolated rib fractures were observed during the anesthesia prospectively.Methods Thoracic paravertebral block(TPB) and/or erector spinae plane block(ESPB) were carried out before LMA anesthesia. The vital signs(HR, BP, SpO 2 ) and parameters of breath were recorded during the operation. The arterial blood gas analysis and chest radiograph were performed preoperatively and on the next day after operation. Patient-controlled analgesia contained with 500mg of tramadol and 16mg of lornoxicam was routinely used after the operation, and 50mg of urbiprofen was infused intravenously Bisindie in the ward. Postoperative nausea and vomiting(PONV) within 48 hours after surgery and NRS pain score at 6(T1), 12(T2), 24(T3) hours after surgery were assessed as well.Results Thirteen males and seven females(mean age 54 years) were enrolled in this trial.
    [Show full text]
  • Use of Continuous Intercostal Nerve Blockade Is Associated With
    Trauma Surg Acute Care Open: first published as 10.1136/tsaco-2020-000600 on 26 April 2021. Downloaded from Open access Original research Use of continuous intercostal nerve blockade is associated with improved outcomes in patients with multiple rib fractures Rindi Uhlich,1 Jeffrey David Kerby ,1 Patrick Bosarge,2 Parker Hu 1 1Surgery, The University of ABSTRACT Failure to control pain can result in low tidal volume Alabama at Birmingham, Background Rib fractures are common among trauma ventilation, inadequate clearance of bronchial secre- Birmingham, Alabama, USA tions, obstructive atelectasis, and progressive respi- 2Surgery, University of Arizona patients and may result in significant morbidity and College of Medicine - Phoenix, mortality. There are numerous treatment options, but ratory dysfunction. As a result, multiple rib fractures Phoenix, Arizona, USA ideal management is unclear. Delivery of local anesthetic are associated with significant increase in length via an analgesia catheter for continuous intercostal of stay and ventilator requirements.1 Furthermore, Correspondence to nerve blockade offers an attractive potential option for each additional rib fracture has been correlated with Dr Parker Hu; phu@ uabmc. edu management of patients with rib fractures. subsequent increase in mortality, with approximately 10% of all patients suffering death prior to hospital Received 30 August 2020 Methods We performed a single- center, retrospective 2 Revised 4 December 2020 case–control analysis of trauma patients with multiple discharge. With appropriate analgesia at the fore- Accepted 5 April 2021 rib fractures from 2016 to 2018, comparing patients front of management, a multitude of techniques and managed with continuous intercostal nerve blockade approaches have been investigated.
    [Show full text]
  • Effect of Different Thoracic Anesthesia on Postoperative Cough
    3547 Original Article Effect of different thoracic anesthesia on postoperative cough Zhenzhu Chen, Qinglong Dong, Lixia Liang Department of Anesthesia, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China Contributions: (I) Conception and design: Q Dong; (II) Administrative support: Z Chen; (III) Provision of study materials or patients: L Liang; (IV) Collection and assembly of data: Z Chen; (V) Data analysis and interpretation: Z Chen, Q Dong; (VI) Manuscript writing: All authors; (VII) Final approval of manuscript: All authors. Correspondence to: Qinglong Dong, MD. Department of Anesthesia, the First Affiliated Hospital of Guangzhou Medical University, No. 151, Yanjiang Rd., Guangzhou 510120, China. Email: [email protected]. Background: The objective of the study is to retrospectively analyze the cough status after double lumen tube (DLT) and spontaneous respiration thoracic anesthesia, to compare the degree of influence of anesthesia and surgical factors, and to investigate whether spontaneous respiration anesthesia can reduce the incidence of cough. Methods: Postoperative follow-ups were performed on 1,162 patients from July 2011 to December 2015 who meet the selected conditions, whose surgical approach is limited to VAST bullectomy, wedge resection, segmentectomy, or lobectomy. Patients’ probability of cough in 1st day (T1), 2nd days (T2), 3rd days (T3), 1st month (T4), 3rd months (T5), 6th months (T6) and 12th months (T7) after thoracoscopic surgery were recorded, as well as the Leicester cough questionnaire (LCQ) survey results, visual cough score (VAS), and cough symptom scores. All cases were divided into double-lumen endotracheal tubes anesthesia group (group T, n=925 cases) and spontaneous respiratory anesthesia group (group S, n=456 cases), and group S was further divided into intravenous composite intercostal nerve block anesthesia group (group SB, n=157 cases) and intravenous combined epidural anesthesia group (group SE, n=299 cases).
    [Show full text]
  • Intercostal Nerve Blockade for Thoracic Surgery with Liposomal Bupivacaine: the Devil Is in the Details
    1202 Editorial Intercostal nerve blockade for thoracic surgery with liposomal bupivacaine: the devil is in the details Linda W. Martin1, Reza J. Mehran2 1Division of Thoracic Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA, USA; 2Department of Thoracic and Cardiovascular Surgery, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA Correspondence to: Linda W. Martin, MD, MPH, FACS. Associate Professor, Division of Thoracic Surgery, University of Virginia, Charlottesville, VA, USA. Email: [email protected]. Comment on: Dominguez DA, Ely S, Bach C, et al. Impact of intercostal nerve blocks using liposomal versus standard bupivacaine on length of stay in minimally invasive thoracic surgery patients. J Thorac Dis 2018;10:6873-9. Submitted Mar 11, 2019. Accepted for publication Mar 12, 2019. doi: 10.21037/jtd.2019.03.62 View this article at: http://dx.doi.org/10.21037/jtd.2019.03.62 Thoracotomy and minimally invasive video thoracoscopic analgesia; yet administration of an effective regional block surgery are the top two causes of short-term and chronic that leads to a neural blockade before incision, with an pain resulting from elective surgical procedures (1). agent that remains active during the inflammatory phase Analgesia presents a substantial challenge in day to day of nociception (12–48 h) meets the requirements of an practice for thoracic surgeons. Posterior intercostal nerve adequate preemptive intervention. In our experience, blocks (PINB) are one of several modalities to address this, administration of PINB before incision, whether making and they can be quite effective for pain control.
    [Show full text]
  • Observational Study for Laryngeal Mask Anesthesia Combined with Nerve Block in Internal Fxation for Rib Fractures
    Observational study for laryngeal mask anesthesia combined with nerve block in internal xation for rib fractures Jun Cao ( [email protected] ) Shanghai Sixth People's Hospital https://orcid.org/0000-0002-2645-9245 Junfeng Zhang Shanghai Sixth Peoples Hospital Xiaoyun Gao Shanghai Sixth Peoples Hospital Xiaoli Zhang Shanghai Sixth Peoples Hospital Jing Li Shanghai Sixth Peoples Hospital Research article Keywords: Laryngeal mask anesthesia; Non-tracheal intubation; Thoracic paravertebral block; Erector spinae plane block; Rib fractures Posted Date: February 10th, 2020 DOI: https://doi.org/10.21203/rs.2.17107/v2 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Version of Record: A version of this preprint was published on July 15th, 2020. See the published version at https://doi.org/10.1186/s12871-020-01082-y. Page 1/14 Abstract Background: General anesthesia with endotracheal intubation always has been considered mandatory for rib fractures surgery. Recently, there has been interestng in nonintubated technique of LMA anesthesia for lung surgery. We developed a protocol with laryngeal mask(LMA) anesthesia combined with nerve block for rib fractures surgery, and performed it in several cases prospectively. Methods: Twenty patients undergoing unilateral rib fractures surgery were enrolled. Thoracic paravertebral block(TPB) and/or erector spinae plane block(ESPB) were carried out before LMA anesthesia. The vital signs(HR, BP, SpO 2 ) and parameters of breath were gathered during the operation. The arterial blood gas analysis and chest lm were performed preoperatively and on the next day after operation. All patients received postoperative continous analgesia pump contained with 500mg of tramadol and 16mg of lornoxicam after the operation, and intravenous 50mg urbiprofen Bisindie in the ward.
    [Show full text]
  • Clinical Policy: Nerve Blocks for Pain Management Reference Number: PA.CP.MP.170 Coding Implications Effective Date: 09/18 Revision Log Last Review Date: 09/18
    Clinical Policy: Nerve Blocks for Pain Management Reference Number: PA.CP.MP.170 Coding Implications Effective Date: 09/18 Revision Log Last Review Date: 09/18 Description Nerve blocks are the temporary interruption of conduction of impulses in peripheral nerves or nerve trunks created by the injection of local anesthetic solutions. They can be used to identify the source of pain or to treat pain. Policy/Criteria It is the policy of Pennsylvania Health and Wellness® that invasive pain management procedures performed by a physician are medically necessary when the relevant criteria are met and the patient receives only one procedure per visit, with or without radiographic guidance. Table of Contents I. Occipital Nerve Block................................................................................................... 1 II. Sympathetic Nerve Block. ............................................................................................ 2 III. Celiac Plexus Nerve Block/Neurolysis ......................................................................... 3 IV. Intercostal Nerve Block/Neurolysis .............................................................................. 3 V. Genicular Nerve Blocks and Genicular Nerve Radiofrequency Neurotomy ................ 3 VI. Peripheral/Ganglion Nerve Blocks for the Treatment of Chronic Nonmalignant Pain 3 I. Occipital Nerve Block A. An initial injection of a local anesthetics for the diagnosis of suspected occipital neuralgia is medically necessary when all of the following are met: 1. Patient has unilateral or bilateral pain located in the distribution of the greater, lesser and/or third occipital nerves; 2. Pain has two of the following three characteristics: a. Recurring in paroxysmal attacks lasting from a few seconds to minutes; b. Severe intensity; c. Shooting, stabbing, or sharp in quality; 3. Pain is associated with both of the following: a. Dysesthesia and/or allodynia apparent during innocuous stimulation of the scalp and/or hair; b.
    [Show full text]
  • With Pain to the Extent That Drug Requirements Are Less and the Emergency
    368 BRITISH MEDICAL JOURNAL 2 AUGUST 1980 urine output, and careful charting of blood and other fluid suitable for transverse incisions on one side of the body, such losses from drainage tubes etc. as the Kocher's incision for cholecystectomy. Nerve block Br Med J: first published as 10.1136/bmj.281.6236.368 on 2 August 1980. Downloaded from Monitoring and care ofthe circulation is particularly important techniques may be life-saving in protecting high-risk patients in 'patients who have undergone cardiac surgery including from pulmonary insufficiency associated with surgical pain in extracorporeal bypass and those in whom arterial hypotension the postoperative period. They are technically demanding, has been induced deliberately to improve operating conditions however, and call for a high quality of supervision by both or reduce blood loss (in middle ear or pelvic surgery, for nurses and doctors. Extradural block may be associated with example). In such cases direct monitoring and display of the postural hypotension, particularly in patients whose circulatory arterial and central venous pressure, measurement of cardiac volume is less than normal. A rare possibility is the risk of output and body temperature, and the storage or display of such accidental subarachnoid injection of the local anaesthetic solution information may place special demands on both training and resulting in the need for artificial ventilation as an emergency. space in the recovery room. Such problems are rare, however, and in experienced hands are not an impediment to the use of these valuable methods. Lack of pain relief Recovery rooms It is the scandal of modern surgery that a large proportion of patients suffer severe pain in the postoperative period.
    [Show full text]