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Year : 2006  |  Volume : 38  |  Issue : 3  |  Page : 215-

Evaluation of Q-T interval in healthy adult males

DH Nandal 
 Department of Pharmacology, B. J. Medical College, Pune - 411 001, India

Correspondence Address:
D H Nandal
Department of Pharmacology, B. J. Medical College, Pune - 411 001
India




How to cite this article:
Nandal D H. Evaluation of Q-T interval in healthy adult males.Indian J Pharmacol 2006;38:215-215


How to cite this URL:
Nandal D H. Evaluation of Q-T interval in healthy adult males. Indian J Pharmacol [serial online] 2006 [cited 2022 Nov 30 ];38:215-215
Available from: https://www.ijp-online.com/text.asp?2006/38/3/215/25816


Full Text

Indian Journal of Pharmacology is widely used and referred journal all over India. The methods used by research workers and published in the journal are therefore expected to be very clear and free from mistake of any kind.

The methods mentioned in research letter by Roy et al[1] however has serious mistakes.

1. The correct formula for QTc is:

QT Interval

QTc = -------------------

RR Interval

The research letter mentions it as a simple RR interval. The root sign is missing.

2. QT dispersion is the difference between maximum and minimum QT-interval and NOT the difference between maximum and minimum heart rate (HR). The Bazett formula and calculation of QT dispersion published in IJP do not tally with those in standard books.

References

1Roy P, Naidu MUR, Raju YSN, Ramesh Kumar T, Usha Rani P, Usha Kiran P, et al . Evaluation of Q-T interval in healthy adult males. Indian J Pharmacol 2006;38:135-6.