JSM Clinical Anesthesiology

Review Article © Nnamani et al. 2019

For the Parturient, All that Seizes is not . A Review of Psychogenic Non-Epileptic in Pregnancy Nnamani NP*, Nguyen L, and Sawyer S Department of Anesthesiology, University of Texas at Southwestern Medical Center, USA

Abstract Seizures in the peripartum can be challenging to manage. Seizures in pregnancy can be categorized into these three groups: Known disorder such as , pregnancy related causes of which eclampsia is the main culprit and new onset seizures due to another non-pregnancy related problem. This classification of peripartum seizures can be helpful to optimize management. This review will focus on psychogenic non-epileptic seizures (PNES) in pregnancy as it has not been well described in the literature. Psychogenic nonepileptic seizures (PNES) are events characterized by movements or behaviors that resemble epileptic seizures but are not accompanied by abnormal cerebral electrical activity. PNES are psychological in nature and are often associated with stress or emotional triggers. The mainstay of treatment for PNES is psychotherapy, particularly manualized cognitive-behavioral therapy, insight-oriented therapy, and mindfulness technique. The treatment of comorbid conditions such as anxiety or depression can also help decrease the incidence of PNES and an improvement in the overall prognosis. Case reports in the literature describe patients who developed PNES during pregnancy, with the presenting symptoms being severe enough to warrant treatment with , anti-epileptic drugs, , opioids, and even intubation for airway protection. We describe two cases that convey the management and the medical challenges of these patients to the medical professionals that treat them.

Keywords: Psychogenic Seizure; Epilepsy; Obstetric Anesthesiology

Abbreviations (PNES) in pregnancy as it has not been well described in the literature. PNES: Psychogenic Nonepileptic Seizures Definition Introduction Psychogenic nonepileptic seizures (PNES) are events Seizures in the peripartum can be challenging to manage. characterized by movements or behaviors that resemble epileptic The parturient can be misdiagnosed with eclampsia and the seizures but are not accompanied by abnormal cerebral electrical fetus delivered prematurely, on the other hand a diagnosis activity. PNES are psychological in nature and are often associated could be associated with the risk of being placed on potentially with stress or emotional triggers. According to the Diagnostic and teratogenic medication. Seizures in pregnancy can be categorized Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), into these three groups: Known seizure disorder such as epilepsy (Figure 1)[1] which is exacerbated during pregnancy, pregnancy disorder that falls under the category of somatic symptom related causes of which eclampsia is the main culprit (Table 1) disorders.PNES is a psychiatric It involves disorder-more the unconscious specifically; manifestation it is a conversion of motor and new onset seizures due to another non-pregnancy related medical condition but is not recognized as neurological in nature, be helpful to optimize management. notor sensory better explained symptoms by or another deficits medicalthat resemble or mental a neurological disorder, and or problem (Table 2). This classification of peripartum seizures can This review will focus on psychogenic non-epileptic seizures status [2]. causes clinically significant distress or impairment in functional Prevalence Submitted: 19 February 2019 | Accepted: 09 April 2019 | Published: 19 The prevalence of PNES in the general population ranges April 2019 from 2 to 33 cases per 100,000 people [3]. PNES are commonly *Corresponding author: Nwamaka Pamela Nnamani MD, MSc, Department of Anesthesiology, and University of Texas at Southwestern percentage of patients referred to epilepsy centers-up to 20% Medical Center, 5323 Harry Hines Blvd, Dallas TX 75390, USA, Tel: 214 accordingmisdiagnosed to some as epilepsy studies and [3,4]. may Of patients represent presenting a significant with 648-6400; Fax: 214 648-5461; Email: [email protected] intractable seizures, approximately 10% are psychogenic Copyright: © 2019 Nnamani et al. This is an open-access article in nature [5]. It is often associated with multiple psychiatric distributed under the terms of the Creative Commons Attribution conditions such as major depressive disorders, anxiety or License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. bipolar disorder, post-traumatic stress disorder, and borderline personality traits, and it can be a manifestation of psychological Citation: Nnamani NP, Nguyen L, Sawyer S (2019) For the Parturient, All detriment in response to childhood or sexual abuse [6,7]. Roy et that Seizes is not Eclampsia. A Review of Psychogenic Non-Epileptic Sei- al., compared patients with psychogenic seizures with matched zures in Pregnancy. JSM Clin Anesthesiol 1: 5.

cohorts of epileptic patients and found significant differences JSM Clin Anesthesiol 5: 5 1/5 1147. 1(1): Res Clin Cardiol J Figure 1 1..

Classification of Epilepsy by International League Against Epilepsy (ILAE) Table 1: Seizures associated with pregnancy related conditions. Diagnosis Seizures due to pregnancy related conditions The diagnosis of PNES can often be challenging, especially in . Eclampsia the setting of pregnancy. One of the differential diagnosis that . Posterior reversible encephalopathy

associatedcause significant with hypertension,maternal and edema,fetal morbidity and proteinuria and mortality [13,14]. is eclampsia; a disorder of pregnancy characterized by seizures and . AmnioticLocal Anesthetic fluid embolism toxicity Brady and Huff describe a case of a female patient at 33 weeks . Cerebral venous sinus thrombosis gestation who initially presented with new-onset convulsive . Thrombotic thrombocytopenic purpura activity which was initially treated with benzodiazepines and AEDs despite a probable diagnosis of psychogenic seizures, . Reversible cerebral vasoconstriction syndrome but with the background of peripheral edema, intermittent . Air embolism hypertension, and proteinuria, eclampsia had not yet been ruled out. Eventually, EEG obtained during the seizure activity Table 2: in parturient due to conditions not prompted the diagnosis of PNES [15]. associated with pregnancy. Diagnosis can often be challenging given the often paroxysmal Seizures in peripartum due to non-pregnancy related causes nature of the seizures and the lack of an unequivocal, infallible . Metabolic derangements such as . Intracranial space occupying lesions epileptic seizure [16]. The average time to diagnosis of PNES is sign or symptom that definitively distinguishes PNES from an . Infection about 7.2 years [1]. As a consequence, patients with PNES are . Vascular malformation approximately 80% of patients with video-electroencephalogram . Psychogenic non-epileptic seizures initially misdiagnosed and are treated for presumed epilepsy;

Table 3: Differences between epileptic tonic clonic and psychogenic regarding history of psychiatric disorder, attempted suicide, non-epileptic seizures. sexual maladjustment, and current affective syndromes [8]. It Psychogenic Epilepsy is also more commonly seen in patients who have epilepsy or a seizures family history of epilepsy [9]. PNES is more prevalent in females, Peak reproductive age Age Any who represent up to 80% of cases [10]. However, PNES during (15-35) pregnancy has not been well-described in the literature. Sex Both Female Variable The lifetime incidence of non-PNES conversion symptoms has Usually easily State during seizure (unresponsive, been reported to be as high as 84%, and one study by Lempert et arousable al., reports that other conversion symptoms were present in 60% awake) Seizure onset/ Gradual, prolonged of patients with PNES [11,12]. Abrupt, short interval duration >5mins Presentation Eyes Open Closed There are several clinical signs that can aide in diagnosis of Motor activity Symmetrical Usually asynchronous psychogenic versus epileptic seizures: gradual onset of seizures, Tongue biting Frequent Rare Verbal response Rare Typical asynchronous movements, arching of the back, violent thrashing Disoriented Orients rapidly movements,fluctuating course,and vocalizations side-to-side are all head suggestive movements, of psychogenic bilateral seizures (Table 3) [1]. Amnesia Typical Variable

JSM Clin Anesthesiol 5: 5 2/5 28 yo G8P5A2 with intrauterine pregnancy complicated by drug (AED) at the time of PNES diagnosis [17]. Unfortunately, (v-EEG) confirmed PNES were taking at least one antiepileptic seizures (PNES) (diagnosed by video-electroencephalogram suffer more iatrogenic adverse effects than patients with epilepsy (v-EEG)asthma, atiron approximately deficient anemia 17 weeks and psychogenic gestation), she non-epileptic presented [16].these patients About a tend tenth to utilize of patients significant presenting healthcare with resources intractable and at 25 weeks gestation with presumed during seizures have a psychogenic cause and are often inappropriately pregnancy. According to the patient’s family, she had an episode treated with potentially toxic drugs [5]. Further at home that was described as shaking of her upper and lower extremities in a tonic-clonic manner and tongue biting, but no epilepsy can have PNES concurrently, and therefore the diagnosis loss of consciousness. Patient was treated with a total of 25 mg ofcomplicating PNES should the not issue be oneis that of exclusion patients who[9]. Although have EEG-confirmed not without of Ativan (15 mg was given by EMS and an additional 10 mg its limitations, v-EEG in concordance with a thorough history and after arrival to the hospital). In addition, she was given a 3g physical is the gold standard for diagnosis of PNES [18]. magnesium load as treatment to prevent eclamptic seizures. The patient had required intubation for inability to protect her airway Literature Case Reports prior to arrival at our facility. The patient was admitted to the Neurological Intensive Care unit and continuous EEG monitoring psychogenic seizures during pregnancy with multiple emergency was performed. After approximately 24 hours of continuous EEG roomDe visits Toledo and et continuedal., reported intake five ofcases antiepileptic of recurrent, drugs persistent (AEDs) monitoring, no epileptic form activity could be appreciated. The from various sources, despite the awareness of the psychogenic Psychiatry service was consulted and after another evaluation nature of the seizures and knowledge of the risks associated using video-electroencephalogram (v-EEG), she was diagnosed with AED use during pregnancy [19]. There have also been case with PNES. This diagnosis may have been manifested due to Post- reports of patients who developed PNES during pregnancy, Traumatic Stress Disorder (PTSD) and anxiety disorder resulting with the presenting symptoms being severe enough to warrant from the loss of a pregnancy in the past. The patient was taken treatment with benzodiazepines, AEDs, barbiturates, opioids, and off all anti-epileptic medications and referred for manualized even intubation for airway protection [20,21,22]. PNES can also cognitive behavior therapy in the PNES Clinic. present as sudden collapse or unresponsiveness, which can often be mistaken for orthostatic hypotension or vasovagal reactions Discussion & Conclusion [23,24]. There has been a case reported of PNES as well as pseudo PNES in pregnancy has a complex presentation, diagnostic labor in a pregnant patient, eventually diagnosed after fetal criteria and subsequent management plan. The differential diagnosis for PNES in pregnancy include: Epilepsy, Eclampsia, were inconsistent with premature labor and uterine contractions metabolic derangements such as hypoglycemia, intracranial [25].fibronectin, fetal non-stress test, and external tocodynamometry occupying lesions and vascular malformations. Unpublished Cases The two cases described convey the challenges the patients

against medical advice likely due to frustration surrounding her medical history of seizure disorder (on oxcarbazepine), and medical professionals encounter. The first patient left 29 yo G3P2 at 30 weeks gestation with significant past diagnosis and treatment plan. The second patient had video- (on Fioricet prn), Bipolar Disorder, ADHD, and dissociative electroencephalogram (v-EEG) performed twice during her identity disorder (on Lurasidone, Fluoxetine, Trazodone and gestation to ensure diagnosis and tailor individualized treatment Buspirone) presented for management of uncontrolled seizure plan. These two cases show the importance of engaging patients disorder versus possible pseudo seizures. The patient reported in short and long-term treatment plan. having increased seizure activity over the past 2 weeks with multiple episodes occurring daily. The patient described the Treatment and Long-Term Management seizures as being either tonic-clonic episodes or periods of what Anesthesia management of acute seizure: Individualized she described as “starring spells.” During evaluation by the OB psychiatric interventions are the hallmark treatment for team, the patient had a tonic-clonic episode involving the upper psychogenic seizures. Anesthetic management in the seizing and lower extremities. Immediately after the episode resolved, parturient should include techniques that involve short acting agents in addition to peri-operative psychological support and and could answer all questions about her medical history in constant reassurance for the patient. For acute management of detail.the patient Neurology was alert team and was oriented consulted to andperson, they place recommended and time; a seizing patient, the patient’s airway should be assessed and continuing her and a psychiatry consult. Prior to managed as deemed necessary. Patient should be oxygenated with her evaluation by the psychiatry service, the patient had 2 more a face mask if immediate intubation is not necessary. Vitals signs episodes of tonic-clonic activity (each lasting approximately 1 should be continually monitored. Peripheral intravenous should minute in duration) and was given 5 mg of Midazolam by the anesthesiology team as well as being loaded with Leviteracetam should be checked to rule out the possibility of hypoglycemia. by the obstetrics team. Again, each of these episodes was followed Tobe placed stop the and seizure, a fluid benzodiazepines bolus can be commenced. such as midazolam Blood and by no obvious post-ictal state. Shortly after resolution of these lorazepam can be titrated. If seizure persists, can be episodes the patient signed out against medical advice (AMA) used to help terminate the seizure and for induction to enable and was lost to follow up.

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