Severe Tachycardia Associated with Psychotropic Medications in Psychiatric Inpatients: A Study of Hospital Medical Emergency Team Activation

The use of antipsychotic medications is associated with side effects, but the occurrence of severe tachycardia (heart rate ≥ 130 per minute) is not well described. The aim of this study was to determine the frequency and strength of the association between antipsychotic use and severe tachycardia in...

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Bibliographic Details
Published in:Journal of clinical medicine 2021-04, Vol.10 (7), p.1534
Main Authors: Lim, Andy K H, Azraai, Meor, Pham, Jeanette H, Looi, Wenye F, Wirth, Daniel, Ng, Ashley S L, Babu, Umesh, Saluja, Bharat
Format: Article
Language:English
Subjects:
Cardiac arrhythmia
Cardiovascular disease
Clinical medicine
Drug use
Heart rate
Hospitals
Lung diseases
Medical records
Mental disorders
Oxygen saturation
Patients
Potassium
Psychiatry
Psychotropic drugs
Variables
Vital signs
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Summary:The use of antipsychotic medications is associated with side effects, but the occurrence of severe tachycardia (heart rate ≥ 130 per minute) is not well described. The aim of this study was to determine the frequency and strength of the association between antipsychotic use and severe tachycardia in an inpatient population of patients with mental illness, while considering factors which may contribute to tachycardia. We retrospectively analyzed data from 636 Medical Emergency Team (MET) calls occurring in 449 psychiatry inpatients in three metropolitan hospitals co-located with acute medical services, and used mixed-effects logistic regression to model the association between severe tachycardia and antipsychotic use. The median age of patients was 42 years and 39% had a diagnosis of schizophrenia or psychotic disorder. Among patients who experienced MET calls, the use of second-generation (atypical) antipsychotics was commonly encountered (70%), but the use of first-generation (conventional) antipsychotics was less prevalent (10%). Severe tachycardia was noted in 22% of all MET calls, and sinus tachycardia was the commonest cardiac rhythm. After adjusting for age, anticholinergic medication use, temperature >38 °C and hypoglycemia, and excluding patients with infection and venous thromboembolism, the odds ratio for severe tachycardia with antipsychotic medication use was 4.09 (95% CI: 1.64 to 10.2).
ISSN:2077-0383
2077-0383
DOI:10.3390/jcm10071534