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HCQ prophylaxis in COVID-19 did not show any QTc prolongation in Healthcare workers.
Jha, Sujeet; Batra, Nitish; Siddiqui, Samreen; Yadav, Ashutosh; Misra, Archa; Loomba, Menka; Sethi, Sumeet; Waghdhare, Swati.
  • Jha S; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India. Electronic address: sujeet.jha@maxhealthcare.com.
  • Batra N; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India.
  • Siddiqui S; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India.
  • Yadav A; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India.
  • Misra A; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India.
  • Loomba M; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India.
  • Sethi S; Interventional Cardiology, Max Healthcare, New Delhi, India.
  • Waghdhare S; Institute of Endocrinology, Diabetes, and Metabolism, Max Healthcare, New Delhi, India.
Indian Heart J ; 73(1): 74-76, 2021.
Article in English | MEDLINE | ID: covidwho-917304
ABSTRACT

BACKGROUND:

HCQ is a commonly recommended drug for the prophylaxis of COVID-19. One of its rare side-effect includes QTc prolongation.

METHODS:

This was a prospective, cross sectional and observational study conducted on Hydroxychloroquine (HCQ) among Healthcare Workers (HCWs) at Max Super Speciality Hospital, Saket, New Delhi, India. A 3-lead ECG (only limb leads, it does not require chest leads) was performed. The QTc cut offs were pre decided, QTC < 470 ms for males and <480 ms for females was considered within the normal limits and anything above this was regarded as QTc prolongation.

RESULTS:

There were 274 HCWs enrolled into the study, including 175 males and 99 females. Majority of the HCWs were young and had a mean age of 32.19 ± 9.29 years. Out of these, 218 were taking HCQ as per the Indian Council of Medical Research (ICMR) guidelines. The median cumulative dose being taken was 1600 mg and the median QTc of these participants was 390 ms in males and 391.5 ms in females. Subsequently, 33 participants were followed-up and found to have a median QTc of 389 ms and a cumulative dose of HCQ as 2000 mg.

CONCLUSION:

In conclusion, ours is a first study in the middle of the pandemic which showed that HCQ prophylaxis in young HCWs without comorbidities did not show any QTc prolongation.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Pneumonia, Viral / Long QT Syndrome / Health Personnel / COVID-19 Drug Treatment / Hydroxychloroquine Type of study: Cohort study / Observational study / Prognostic study / Randomized controlled trials Limits: Adult / Female / Humans / Male Country/Region as subject: Asia Language: English Journal: Indian Heart J Year: 2021 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Pneumonia, Viral / Long QT Syndrome / Health Personnel / COVID-19 Drug Treatment / Hydroxychloroquine Type of study: Cohort study / Observational study / Prognostic study / Randomized controlled trials Limits: Adult / Female / Humans / Male Country/Region as subject: Asia Language: English Journal: Indian Heart J Year: 2021 Document Type: Article