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Sudden unexpected death in epilepsy: knowledge and experience among U.S. and Canadian neurologists.

ABSTRACT: Sudden unexpected death in epilepsy (SUDEP) is a common cause of mortality in patients with the disease, but it is unknown how neurologists disclose this risk when counseling patients.This study aimed at examining SUDEP discussion practices of neurologists in the U.S. and Canada.An electronic, web-based survey was sent to 17,558 neurologists in the U.S. and Canada. Survey questions included frequency of SUDEP discussion, reasons for discussing/not discussing SUDEP, timing of SUDEP discussions, and perceived patient reactions. We examined factors that influence the frequency of SUDEP discussion and perceived patient response using multivariate logistic regression.The participants of this study were neurologists who completed postgraduate training and devoted >5% of their time to patient care.There was a response rate of 9.3%; 1200 respondents met eligibility criteria and completed surveys. Only 6.8% of the respondents discussed SUDEP with nearly all (>90% of the time) of their patients with epilepsy/caregivers, while 11.6% never discussed it. Factors that independently predicted whether SUDEP was discussed nearly all of the time were the following: number of patients with epilepsy seen annually (OR=2.01, 95% CI=1.20-3.37, p<0.01) and if the respondent had a SUDEP case in the past 24 months (OR=2.27, 95% CI=1.37-3.66, p<0.01). A majority of respondents (59.5%) reported that negative reactions were the most common response to a discussion of SUDEP. Having additional epilepsy/neurophysiology training was associated with an increased risk of a perceived negative response (OR=1.36, 95% CI=1.02-1.82, p=0.038), while years in practice (OR=0.85, 95% CI=0.77-0.95, p<0.005) and seeing both adults and children were associated with a decreased likelihood of negative response (OR=0.15, 95% CI=0.032-0.74, p=0.02).U.S. and Canadian neurologists rarely discuss SUDEP with all patients with epilepsy/caregivers though discussions are more likely among neurologists who frequently see patients with epilepsy or had a recent SUDEP in their practice. Perceived negative reactions to SUDEP discussions are common but not universal; more experienced neurologists may be less likely to encounter negative reactions, suggesting that there may be ways to frame the discussion that minimizes patient/caregiver distress.

SUBMITTER: Friedman D

PROVIDER: S-EPMC4176608 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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Sudden unexpected death in epilepsy: knowledge and experience among U.S. and Canadian neurologists.

Friedman Daniel D Donner Elizabeth J EJ Stephens Derek D Wright Cyndi C Devinsky Orrin O

Epilepsy & behavior : E&B 20140503

<h4>Importance</h4>Sudden unexpected death in epilepsy (SUDEP) is a common cause of mortality in patients with the disease, but it is unknown how neurologists disclose this risk when counseling patients.<h4>Objective</h4>This study aimed at examining SUDEP discussion practices of neurologists in the U.S. and Canada.<h4>Design</h4>An electronic, web-based survey was sent to 17,558 neurologists in the U.S. and Canada. Survey questions included frequency of SUDEP discussion, reasons for discussing/ ...[more]

PMID: 24785429

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Project description:Sudden unexpected death in epilepsy is the leading category of epilepsy-related death and the underlying mechanisms are incompletely understood. Risk factors can include a recent history and high frequency of generalized tonic-clonic seizures, which can depress brain activity postictally, impairing respiration, arousal and protective reflexes. Neuropathological findings in sudden unexpected death in epilepsy cases parallel those in other epilepsy patients, with no implication of novel structures or mechanisms in seizure-related deaths. Few large studies have comprehensively reviewed whole brain examination of such patients. We evaluated 92 North American Sudden unexpected death in epilepsy Registry cases with whole brain neuropathological examination by board-certified neuropathologists blinded to the adjudicated cause of death, with an average of 16 brain regions examined per case. The 92 cases included 61 sudden unexpected death in epilepsy (40 definite, 9 definite plus, 6 probable, 6 possible) and 31 people with epilepsy controls who died from other causes. The mean age at death was 34.4 years and 65.2% (60/92) were male. The average age of death was younger for sudden unexpected death in epilepsy cases than for epilepsy controls (30.0 versus 39.6 years; P = 0.006), and there was no difference in sex distribution respectively (67.3% male versus 64.5%, P = 0.8). Among sudden unexpected death in epilepsy cases, earlier age of epilepsy onset positively correlated with a younger age at death (P = 0.0005) and negatively correlated with epilepsy duration (P = 0.001). Neuropathological findings were identified in 83.7% of the cases in our cohort. The most common findings were dentate gyrus dysgenesis (sudden unexpected death in epilepsy 50.9%, epilepsy controls 54.8%) and focal cortical dysplasia (FCD) (sudden unexpected death in epilepsy 41.8%, epilepsy controls 29.0%). The neuropathological findings in sudden unexpected death in epilepsy paralleled those in epilepsy controls, including the frequency of total neuropathological findings as well as the specific findings in the dentate gyrus, findings pertaining to neurodevelopment (e.g. FCD, heterotopias) and findings in the brainstem (e.g. medullary arcuate or olivary dysgenesis). Thus, like prior studies, we found no neuropathological findings that were more common in sudden unexpected death in epilepsy cases. Future neuropathological studies evaluating larger sudden unexpected death in epilepsy and control cohorts would benefit from inclusion of different epilepsy syndromes with detailed phenotypic information, consensus among pathologists particularly for more subjective findings where observations can be inconsistent, and molecular approaches to identify markers of sudden unexpected death in epilepsy risk or pathogenesis.

Dataset Information

Sudden unexpected death in epilepsy: knowledge and experience among U.S. and Canadian neurologists.

Publications

Sudden unexpected death in epilepsy: knowledge and experience among U.S. and Canadian neurologists.

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