A Genetics Pearl for Counseling Patients with Epsilon-Sarcoglycan Myoclonus-Dystonia

Background

Epsilon-sarcoglycan (SGCE) myoclonus-dystonia is autosomal dominant (AD) with reduced penetrance due to maternal imprinting 95% of the time. Patients may lack family history delaying diagnosis and treatment. Additionally, counseling patients on their risk of passing on the variant differs for females versus males.

Case Report

A woman in her thirties with typical phenotype of myoclonus-dystonia but lacking an AD pedigree was found to have a pathogenic variant in the SGCE gene. She was counseled that her daughters each have a 2.5% chance of expressing the phenotype.

Discussion

Understanding the genetics of SGCE-myoclonus-dystonia enables effective genetic counseling and arrival at a timely diagnosis and treatment.

Summary

In an era of advancing genetic analysis and precision medicine-based treatments, neurologists will be faced with increasing responsibility to properly counsel patients on the results of genetic testing. This case highlights a genetics pearl for counseling patients with epsilon-sarcoglycan myoclonus-dystonia, an autosomal dominant condition with penetrance differing by sex.

Education Research: Burnout and Perception of Value in a Cross-Section of Neurology Residency Program Directors

Background and Objectives

There are no dedicated studies specifically assessing burnout in neurology residency program directors (PDs). A study of residency and fellowship directors across specialties found neurology residency PDs had the highest work-related Copenhagen Burnout Inventory (CBI) score, which may reflect high-level burnout in neurology in general. Indeed, the American Academy of Neurology Burnout Task Force reported burnout in 60% of neurologists. The aims of this study are to determine the level of burnout in adult and pediatric neurology residency PDs, and to determine whether perception of value is related to burnout.

Methods

In an IRB-approved study, 184 neurology residency PDs were emailed an anonymous survey consisting of the full CBI, demographic information, and 2 items addressing perception of value in the PD role: "I feel valued by my department in my educational role," to which the participant could respond "strongly disagree, disagree, agree, or strongly agree," and "satisfaction with current percent effort for the educational role," to which the participant could respond "very dissatisfied, dissatisfied, satisfied, or very satisfied." Data were analyzed through analysis of variance and ordinal logistic regression.

Results

A total of 85 PDs (46%) responded to the survey. The average ± SEM personal, work-related, and patient-related CBI scores were 41.8 ± 2.2, 39.7 ± 2.2, and 32.4 ± 2.2, respectively. Higher personal and work-related CBI scores were associated with less positive perception of value (proportional odds ratio 1.03, 95% CI 1.01-1.06, p = 0.004 and proportional odds ratio 1.04; 95% CI 1.01-1.06, p = 0.003, respectively). Higher personal and work-related CBI scores were also associated with greater dissatisfaction with percent effort granted for the PD role. Level of burnout did not differ between adult and pediatric PDs. Burnout was not related to sex, years in practice, years as PD, academic rank, or percentage effort granted for the PD role.

Discussion

Despite working in a field associated with high burnout, neurology residency PDs were found to have lower-level burnout than previously reported. Ninety-four percent of the PDs reported feeling valued in their role which was associated with lower-level personal and work-related burnout and may represent a key target for reflection and burnout intervention in the future.

Chorea in the Elderly: A Differential Diagnosis and Case Report of Late-Onset Huntington's Disease in an Octogenarian

The term "senile chorea" was previously used to describe cases of insidious onset chorea in elderly patients who lacked family history of chorea. However, many of these patients have an identifiable etiology for their chorea. In this article, we discuss a case of generalized, insidious onset chorea in an 89-year-old man and apply a systematic diagnostic approach to chorea in the elderly to arrive at a diagnosis of late-onset Huntington's disease. He is to our knowledge the second oldest case of late-onset Huntington's disease reported in the literature and his case lends support to the expanding phenotype of Huntington's disease.