QTc‐interval abnormalities in a forensic population

Girgis, Sobhi; Huckstep, B.; Oakley, Janette; Ferriter, Michael; Nikolaou, V.S.

doi:10.1002/cbm.630

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…This present study found QTIP in 5.7% of the patients that is higher in comparison to studies conducted in developed countries [35][36][37][38][39][40]. The study also identified highly abnormal QTIP (> 500 ms) in 0.2% of patients which is lower than studies conducted in Japan (1.2 and 3%) [41,42], Italy (2.3%) [9], Spain (2%) [43], and Switzerland (0.9%) [39].…”

Section: Discussioncontrasting

confidence: 78%

Prevalence of QTc interval prolongation and its associated risk factors among psychiatric patients: a prospective observational study

et al. 2020

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Background QT interval prolongation is a growing concern worldwide, posing psychiatric patients to life-threatening fatal arrhythmias i.e., torsade de pointes. This study aimed to identify the prevalence of QT interval prolongation, its associated risk factors and prescribing patterns of QT prolonging drugs among psychiatric patients. Method A prospective observational study was conducted that included psychiatric patients from a tertiary care hospital and a psychiatry clinic in Peshawar, Khyber Pakhtunkhwa, Pakistan. Electrocardiogram was recorded of those patients who were using psychotropic medications for ≥7 days, aged 18 years or more, and of either gender, male or female. The Fredericia correction formula was used for measuring QTc values (corrected QT). Chi-square test was applied to estimate differences between patients with or without prolonged QTc interval whereas, logistic regression analysis was performed to identify various predictors of QT interval prolongation. Results Out of 405 patients, the QTc interval was prolonged in 23 (5.7%) patients including 1 (0.2%) patient with highly abnormal prolonged QTc interval (> 500 ms). QT drugs (91.6%), female sex (38.7%) and hypertension (10.6%) were the most common QT prolonging risk factors. Prolonged QTc interval was significantly higher among male patients (p = 0.007). Conclusion In the present study, QT interval prolongation was observed in a considerable number of psychiatric patients. While, the high prevalence of QT prolonging risk factors among these patients warrants the increased risk of fatal arrhythmias. Therefore, risk assessment and electrocardiographic monitoring, and prescription of safer alternatives are highly recommended.

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