Screening electrocardiograms in psychiatric research: implications for physicians and healthy volunteers

Screening Electrocardiograms Have Low Utility in Medical Clearance Before Pediatric Inpatient Psychiatric Admission

OBJECTIVES

Children presenting to the emergency department (ED) requiring psychiatric admission often undergo screening electrocardiograms (ECG) as part of the medical clearance process. The diagnostic yield of screening ECGs for this purpose has not been reported. The purpose of this study was to determine the clinical utility of screening ECGs in children and adolescents requiring acute inpatient psychiatric admission.

METHODS

A single-center retrospective study of patients aged 5 to 18 years who did not have documented indications for ECG and underwent screening ECG before psychiatric inpatient admission over a 2-year period was conducted. Abnormal ECGs were identified via chart review and were reinterpreted by a pediatric cardiologist to determine potential significance to psychiatric care. Impact on treatment and disposition was examined.

RESULTS

From January 2018 through December 2019, 252 eligible pediatric patients had a screening ECG in the ED before psychiatric admission. Twenty-one (8.3%) of these ECGs were interpreted as abnormal, and 6 (2.4%) were determined to be potentially relevant to psychiatric care in the setting of specific medication use. The abnormal ECG interpretations resulted in additional workup and/or cardiology consultation for 7 (2.7%) patients but had no impact on psychiatric admission.

CONCLUSIONS

In the absence of concerning individual or family history or cardiac symptoms, routine screening ECGs as part of medical clearance for psychiatric admission are not warranted given the low yield of meaningful findings. The decision to obtain an ECG should be made with careful consideration of medical history and in the presence of specific indications.

Why knowing healthy controls matters

Although healthy volunteers often serve as controls or primary participants in neuroscience research, they are usually less rigorously screened than patients, which can have far-reaching implications for interpretation of study results. Although this issue has long been recognised, it is rarely discussed in the research literature. This article examines how the rigorous screening and characterisation of healthy volunteers is key for quality research.

Physical Health and Drug Safety in Individuals with Schizophrenia

BACKGROUND

While antipsychotic medications are the mainstay of therapy for individuals with schizophrenia and psychotic disorders, their use is associated with adverse effects on physical health that require the attention and care of prescribers.

METHODS

We used the ADAPTE process to adapt existing guideline recommendations from the National Institute for Health and Care Excellence (NICE) and Scottish Intercollegiate Guidelines Network (SIGN) guidelines on the dosing of antipsychotics and antipsychotic polypharmacy, screening for adverse effects of antipsychotics, and management of metabolic and extrapyramidal side effects to the Canadian context.

RESULTS

Prescribers are encouraged to use the lowest effective dose and to avoid the routine use of multiple antipsychotics. Scheduled monitoring of body mass index, waist circumference, blood pressure, glucose, lipids, prolactin, electrocardiograms, and extrapyramidal symptoms is recommended. Lifestyle interventions are recommended to mitigate antipsychotic-induced weight gain. Prescribers should follow Canadian guidelines on the treatment of obesity, dyslipidemia, and diabetes. Recommendations on antipsychotic drug choice are made for users particularly concerned about extrapyramidal symptoms.

CONCLUSION

Careful monitoring and attention by prescribers may mitigate adverse effects associated with antipsychotic medications.