Psychogenic nonepileptic seizures in children and adolescents: An international cross-cultural study

Medication use in patients with functional seizures from a public and a private hospital

PURPOSE

Currently, we have limited knowledge of any potential differences among patients with functional seizures (FS), otherwise known as psychogenic non-epileptic seizures (PNES), from different socioeconomic backgrounds. Investigating medication use among these patients may provide insight into the quality and intensity of medical care they receive. Thus, we aimed to assess and compare the frequency and quantity of antiseizure medications (ASMs), and psychiatric and other medications used among patients with FS from a private and public epilepsy monitoring units (EMUs) in Cape Town, South Africa.

METHODS

Only video-electroencephalographically (video-EEG) confirmed patients with FS with no comorbid epilepsy were eligible for the study. For this retrospective case-control study we collected data on patients' medication-taking histories using digital patient records, starting with the earliest available digital patient record for each hospital.

RESULTS

A total of 305 patients from a private hospital and 67 patients from a public hospital were included in the study (N = 372). Patients with FS attending the public hospital had lower odds of taking any ASMs at presentation (aOR=0.39, 95% CI [0.20, 0.75]) and ever taking psychiatric medications (aOR=0.41, 95% CI [0.22, 0.78]) compared to FS patients from the private hospital. They did, however, have higher odds of being discharged with an ASM (aOR=6.60, 95% CI [3.27, 13.35]) and ever taking cardiovascular medication (aOR=2.69, 95% CI [1.22, 5.90]) when compared to the private hospital patients. With every additional presenting ASM (aOR=0.63, 95% CI [0.45, 0.89]) and psychiatric medication (aOR=0.58, 95% CI [0.40, 0.84]) the odds of being from the public hospital decreased. However, they increased with every additional discharge ASM (aOR=3.63, 95% CI [2.30, 5.72]) and cardiovascular medication (aOR=1.26, 95% CI [1.02, 1.55]).

CONCLUSION

Standard approaches to pharmacological treatment for patients with FS differed between the public and private hospitals and may indicate a gap in quality of care.

Scoping review and expert-based consensus recommendations for assessment and management of psychogenic non-epileptic (functional) seizures (PNES) in children: A report from the Pediatric Psychiatric Issues Task Force of the International League Against Epilepsy

Limited guidance exists regarding the assessment and management of psychogenic non-epileptic seizures (PNES) in children. Our aim was to develop consensus-based recommendations to fill this gap. The members of the International League Against Epilepsy (ILAE) Task Force on Pediatric Psychiatric Issues conducted a scoping review adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-SR) standards. This was supplemented with a Delphi process sent to pediatric PNES experts. Consensus was defined as ≥80% agreement. The systematic search identified 77 studies, the majority (55%) of which were retrospective (only one randomized clinical trial). The primary means of PNES identification was video electroencephalography (vEEG) in 84% of studies. Better outcome was associated with access to counseling/psychological intervention. Children with PNES have more frequent psychiatric disorders than controls. The Delphi resulted in 22 recommendations: Assessment-There was consensus on the importance of (1) taking a comprehensive developmental history; (2) obtaining a description of the events; (3) asking about potential stressors; (4) the need to use vEEG if available parent, self, and school reports and video recordings can contribute to a "probable" diagnosis; and (5) that invasive provocation techniques or deceit should not be employed. Management-There was consensus about the (1) need for a professional with expertise in epilepsy to remain involved for a period after PNES diagnosis; (2) provision of appropriate educational materials to the child and caregivers; and (3) that the decision on treatment modality for PNES in children should consider the child's age, cognitive ability, and family factors. Comorbidities-There was consensus that all children with PNES should be screened for mental health and neurodevelopmental difficulties. Recommendations to facilitate the assessment and management of PNES in children were developed. Future directions to fill knowledge gaps were proposed.

Prevalence and comparison of psychological trauma and stressors in functional seizure patients from a public and private hospital

PURPOSE

To date not much is known about the differences, if any, between patients with functional seizures (FS) from different socioeconomic backgrounds. We sought to compare the psychological stress and trauma profiles of patients with FS from a private and public hospital in Cape Town, South Africa.

METHODS

Only video-electroencephalography-confirmed patients with FS were eligible for the study. In this retrospective case-control study we collected data on self-reported demographic and psychological stressor/trauma variables using digital patient records starting with the earliest available digital patient record for each hospital.

RESULTS

A total of 321 patients from a private hospital and 68 patients from a public hospital were included in the study. Most factors showed no significant differences. However, public hospital patients had higher odds of being older (p = 0.002), almost nine times the odds of reporting physical violence by an intimate partner (aOR = 8.65, 95% CI [1.70, 44.08]), more than eight times the odds of reporting psychological stress in the form of death and/or sickness in the family (aOR = 8.56, 95% CI [1.81, 40.41]) and almost three times the odds for other general psychosocial stressors (aOR = 2.82, 95% CI [1.08, 7.42]) compared to those attending the private hospital. They also had half the odds of being female compared to the private hospital patients (aOR = 0.47, 95% CI [0.23, 0.95]) and 93% fewer odds of reporting coming from an abusive home (aOR = 0.07, 95% CI [0.01, 0.52]).

CONCLUSION

History and psychological trauma and stressor profiles showed many similarities between the public and private hospital groups; however, some differences were noted and could benefit further exploration and consideration in therapeutic and diagnostic contexts.

Functional Neurological Disorder in Saudi Arabia: An Update

Functional neurological disorder (FND) is characterized by neurological symptoms that lack congruence with traditional neurological diagnoses. Historically viewed through a Freudian psychoanalytic lens, FND has been conceptualized as a purely psychogenic disorder. However, the contemporary biopsychosocial perspective on FND emphasizes contributions of cognitive and neural circuit dysfunction and the disabling and involuntary nature of the illness. In Saudi Arabia, evidence suggests the prevalence of FND is significant. However, clinical programs and research focused on FND have been lacking. Studies from the region indicate that practitioners may have outdated views of FND. To address this, this narrative review provides an updated perspective on FND that is relevant to Saudi Arabia and the region. It delves into the evolving perception of FND, its underlying pathophysiology, risk factors, clinical presentations, and recent diagnostic and management advances. Unique features of FND in Saudi Arabia may include a significant role for family disputes as a risk factor, prevalent supernatural perceptions of FND, high prevalence of somatization, and cognitive dysfunction, and a potential favorable prognosis. The article concludes by providing the following recommendations related to FND in Saudi Arabia and the region: i) building educational programs to update clinicians about contemporary biopsychosocial perspectives on FND; ii) emphasizing a positive diagnostic approach based on clinical findings in FND; iii) instituting multidisciplinary programs to care for FND patients; iv) supporting systematic research efforts to explore culture-specific FND risk factors, patient outcome measures, and attitudes toward the disorder; v) developing national FND clinical practice guidelines; and vi) launching awareness campaigns to reduce FND stigma.

Systematic review on somatization in a transcultural context among teenagers and young adults: Focus on the nosography blur

Aims

Somatic complaints are a frequent cause for consultation in primary care. In a transcultural context, somatic complaints are typically associated with psychological distress. A recent review about somatic symptom disorders in adolescence showed some nosographic heterogeneity and outlined various etiological hypotheses (traumatic, environmental, or neurologic), separate from the cross-cultural considerations. Migrants' children encounter specific problems involving cultural mixing-issues of filiation (familial transmission) and affiliation (belonging to a group). This paper aims to provide a systematic review of somatization in transcultural contexts among teenagers and young adults, aged 13 to 24, over the past decade.

Methods

This review adheres to the quality criteria set forth by the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Two authors queried three English databases (Medline, PsycInfo, WebOfScience) about somatization in transcultural contexts (migrant or non-Western population) among teenagers (13-18), young adults (19-24), or both. The methodological process comprised articles selection, data extraction, and then the analysis of emerging themes. Setting selection criteria to limit the transcultural field was difficult.

Results

The study analyzed 68 articles. We present a descriptive analysis of the results, centered on three main themes. First, the literature highlights a nosographic muddle reflected in the combination of anxious and depressive symptoms together with the highly variable symptomatology. Second, discrimination issues were prevalent among the migrant population. Lastly, the literature review points out possibilities for improving a care pathway and reducing the diagnostic delay induced by migrants' hesitancy about Western care and the recurrent use of inappropriate diagnostic criteria.

Conclusion

This review discusses the links between the nosographic muddle described here and the diagnostic delays these patients experience and raises concerns about rigid diagnostic compartmentalization. The work of the psychiatrist Frantz Fanon is here useful to understand externalized symptoms resulting from physical and psychological confinement. Discrimination issues raise questions about the cultural counter-transference health professionals experience in dealing with young migrants. Defining healthcare professionals' representations about somatic complaints in a transcultural context might be a fruitful path to explore in future research.

Protocol PROSPERO registration number

CRD42021294132. Available from: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021294132.

Social aspects of life in patients with functional (psychogenic nonepileptic) seizures: An international study

PURPOSE

To explore various social aspects of life (i.e., employment, education, and driving) in a large sample of patients with functional seizures (FS) living in seven countries from four continents.

METHODS

In this retrospective study, we investigated adult patients with FS, who were admitted to the epilepsy monitoring units at centers in Iran, Qatar, USA, France, Georgia, Egypt, and United Arab Emirates (UAE). We studied the social aspects of life in the whole cohort. Then, we compared the social aspects of life between different world regions.

RESULTS

Four hundred and forty patients were included (241 from Iran, 56 from Qatar, 52 from France, 41 from the USA, 19 from UAE, 18 from Egypt, and 13 from Georgia). One hundred and twenty six people (30%) had college education, 142 (33%) were employed, and 101 (28%) drove a motor vehicle in their routine daily lives. People with FS and college education were more likely to report a history of sexual abuse compared with those with a lower education. Patients with no loss of responsiveness with their FS were more likely to be employed. Male patients and patients without aura were more likely to drive a motor vehicle in their routine daily lives. None of the social characteristics of the patients with FS showed significant differences among the two large culturally different groups (Muslim nations vs. Christian nations).

CONCLUSION

It appears that patients with FS across cultures have significant problems in their social aspects of life.

Clinical characteristics of functional (psychogenic nonepileptic) seizures: An international retrospective study

PURPOSE

We conducted a multicenter international cross-cultural comparative study to investigate clinical semiology and predisposing factors of functional seizures in a large cohort of patients living in different countries around the world. We hypothesized that semiology and predisposing factors of functional seizures differ between various world regions.

METHODS

We conducted this retrospective observational study in adults with functional seizures admitted to epilepsy centers in Iran, Qatar, USA, France, Georgia, Egypt, and United Arab Emirates (UAE). We assessed and compared the demographic and clinical seizure characteristics of these patients, according to the patients' reports and review of the ictal recordings during video-electroencephalogram (EEG) monitoring.

RESULTS

Five hundred nine patients were included (270 from Iran, 74 from Qatar, 63 from France, 43 from the USA, 22 from Egypt, 20 from UAE, and 17 from Georgia). Although all major manifestations of functional seizures (e.g., aura, loss of responsiveness, generalized motor seizures, ictal injury) were seen in all world regions, seizure semiology differed significantly across countries. Auras, ictal urinary incontinence, and ictal injury were more commonly reported by the American patients than patients from other world regions, whereas loss of responsiveness and generalized motor seizures were more frequently observed in the Iranian and American patients than the European and Arab patients.

CONCLUSION

Semiology of functional seizures seems to vary across various regions of the world; socioeconomic, cultural, ethnic, and religious differences may play an essential role in the modulation of functional seizures semiology across different nations and cultures.

Psychogenic nonepileptic (functional) seizures: Significance of family history and model learning

PURPOSE

If a positive family history of seizures plays a significant role that contributes to the risk for developing psychogenic nonepileptic seizures (PNES) by means of model learning, one would expect that patients with PNES with a family history of seizures show a different semiology than those without such a history. We investigated whether the above hypothesis is valid.

METHODS

In this retrospective study, all patients with PNES, who were diagnosed at Shiraz Comprehensive Epilepsy Center at Shiraz University of Medical Sciences, Iran, from 2008 until 2019, were investigated. Demographic and clinical characteristics were compared between patients with a positive family history of seizures and those without such a history RESULTS: During the study period, 274 patients with PNES-only had the inclusion criteria. Seventy-seven (28%) patients had a positive family history of seizures and 197 (72%) patients did not have such a history. There were no significant demographic or clinical differences between the two groups.

CONCLUSION

It seems that a positive family history of seizures and model learning does not play a significant role in the development of PNES. Investigators should explore other potentially significant contributors and risk factors for developing PNES in future studies.

International multicenter studies on psychogenic nonepileptic seizures: A systematic review

The aim of the current paper is to systematically review the literature on the existing international multicenter studies on various aspects of PNES and to highlight their findings and significance. I searched the electronic database PubMed for articles that included any of these search terms: Non-epileptic seizures, Nonepileptic seizures, Pseudoseizures, Non-epileptic events, Nonepileptic events, Dissociative seizures, Psychogenic, PNES, AND "international" or "multicenter" or "cross cultural", in their abstracts and titles and published before August 6, 2019. I searched PsycINFO database (keywords in the abstracts) and also included some of the references of the selected articles if they were relevant. I could identify 12 related manuscripts through the search strategy. These included seven studies on patients with PNES, two surveys, and three consensus group reports. This systematic review showed that international and cross-cultural studies on PNES to date are very limited in number and quality. However, these limited studies have resulted in intriguing observations and conclusions. International and cross-cultural studies may make important contributions to our understanding of different aspects of PNES across borders.

Semiological classification of psychogenic nonepileptic seizures: A systematic review and a new proposal

PURPOSE

A semiological classification of psychogenic nonepileptic seizures (PNES) may help address proper diagnosis and management and also provide standardization for future studies. The aim of the current paper was to systematically review the literature on the proposed classification systems for the semiology of PNES and to provide a new proposal based on the best available evidence.

METHODS

I searched the electronic database PubMed on May 16, 2019 for articles that included the following search terms: "psychogenic" AND "semiology" or "classification" and also "nonepileptic" AND "semiology" or "classification" and also "pseudoseizure" AND "semiology" or "classification" since 1940. I applied the same methodology using the electronic database Scopus, though I limited the search to the title, abstract, and keywords.

RESULTS

I could identify 15 classification systems through this search strategy using the electronic database PubMed. Searching the Scopus did not yield any additional relevant papers.

CONCLUSION

I proposed a new semiological classification system for PNES based on this systematic review. This includes three major classes of motor seizures, nonmotor seizures, and mixed semiology. A universally accepted and appropriate semiological classification system for PNES may lead to better standardization of future studies and may also help in better understanding of the pathophysiological basis of this condition.

Adult-onset psychogenic nonepileptic seizures: A multicenter international study

PURPOSE

The aim of this multicenter international cross-cultural study was to compare clinical variables in a large sample of people with adult-onset psychogenic nonepileptic seizures (PNES).

METHODS

In this retrospective study, we evaluated persons with documented PNES, who were older than 16 years of age at the onset, from four countries (i.e., Iran, Brazil, Venezuela, and Argentina) regarding their age, gender, PNES semiology, and possible predisposing factors.

RESULTS

We included 389 patients (244 from Iran, 66 from Brazil, 51 from Venezuela, and 28 from Argentina). Age at diagnosis was 32 ± 9 years (range: 17-64 years), and age at the onset of seizures was 27 ± 8 years (range: 17-49 years). There was a female predominance in all countries. The demographic characteristics and factors associated with PNES were similar among the countries. However, there were significant semiological differences among the countries.

CONCLUSION

This study corroborates the notion that PNES share more similarities than differences cross-culturally and across international borders. However, the background determined by cultural, ethnic, and religious differences may influence the semiology of PNES. Further cross-cultural studies involving more than two continents may advance our understanding of PNES.

Psychogenic nonepileptic seizures publications in PubMed: Geographical distribution of the publications

PURPOSE

The aim of the current study was to depict a comprehensive geographical picture of the existing literature on psychogenic nonepileptic seizures (PNES) and to highlight the needs for future works.

METHODS

We searched the electronic database PubMed on June 8, 2019 for articles that included any of the related key words to analyze all the relevant literature. We applied the advance search; field was adjusted to the title and dates were adjusted to 01/01/2000 until 06/08/2019. We selected the relevant articles. Location of the study was determined according to the affiliation(s) of the authors.

RESULTS

1017 papers were included. Interest in research and publication on PNES has risen over the past two decades. Six hundred and nine full length research original papers and 199 review articles were published on PubMed from 2000 until 2019. Continent-wise, most articles were from North America and Europe (41.1% of the whole publications from Europe and 40.8% from North America; 833 papers totally), followed by Asia (92 papers), Oceania (36 papers) and South America (31 publications), while only 0.9% of the papers (9 papers) were from Africa.

CONCLUSION

A global campaign is necessary to inform and educate the world on the issue of PNES and its significance. While PNES merit further epidemiological investigations, there is a significant disparity with regard to the location of the studies. There is a huge need to invest more on studies on various aspects of PNES in many places in the world, including African nations, India, and China.

Presentation of psychogenic nonepileptic seizures in Hawaii's ethnoracially diverse population

PURPOSE

This exploratory study compared the semiology of psychogenic nonepileptic seizures (PNES) between a diverse group of patients in the state of Hawaii. This study may expand understanding of PNES across different ethnocultural and gender groups.

METHODS

A retrospective chart review of patients admitted to our Epilepsy Monitoring Unit (EMU) over a 4-year period was performed to compare semiology in different ethnic groups and gender.

RESULTS

A total of 139 patients were included in this study, 37% (n = 51) with PNES, 34% (n = 47) with epilepsy only, and 29% (n = 41) with other non-PNES, nonepilepsy diagnosis. The number of Asians with PNES were found to differ when compared with the patients with epilepsy and the patients with non-PNES, nonepilepsy diagnosis. A positive trend was found in the number of Native Hawaiians and Caucasians with PNES in comparison with patients with non-PNES, nonepilepsy diagnosis. In addition, three semiology of PNES in Native Hawaiians were found to differ in comparison with other ethnic groups with PNES: rhythmic motor, mixed semiology, and nonepileptic aura. There is a significant difference in all motor manifestation between males and females in Native Hawaiians. Between patients with PNES, patients with epilepsy, and patients with non-PNES, nonepilepsy diagnosis, significant correlation was found in psychiatric disorders including posttraumatic stress disorder (PTSD), anxiety, and any psychiatric disorder.

CONCLUSION

This cross-cultural study found significant differences in the expression of PNES across key ethnoracial groups for the Islands of Hawaii. These findings have implications to the diagnosis and treatment of PNES for Native Hawaiians and other Pacific Islanders in the United States.