USE OF WRIST EXPANDER IN YOUNG ATHLETES WITH SINUS BRADYCARDIA (HEART RATE LESS THAN 60 BEATS/MIN) TO INCREASE HEART RATE IN ORDER TO ADEQUATELY ASSESS CORRECTED QT INTERVAL (QTC) Russian patent published in 2021 - IPC A61B5/00 A61B5/02 

FIELD: medicine; pediatrics; cardiology; sports medicine.

SUBSTANCE: invention relates to medicine, pediatrics, cardiology and sports medicine; it can be used to increase the heart rate in young athletes with sinus bradycardia (heart rate less than 60 beats/min) for an adequate assessment of the corrected QT interval (QTc) using the Bazett formula, when detecting a latent prolongation of QT interval on the ECG in athletes, underestimated in view of sinus bradycardia. After a 5-minute rest, 12-channel ECG is taken at rest, when sinus bradycardia (heart rate less than 60 beats/min) is detected, without changing the body position, a test with isometric exercises is carried out - work with a wrist expander to increase heart rate. For the test, a wrist expander with a set compression force (20 kg) is used for rhythmic compression of the expander with a dominant hand, lasting from 20 to 30 seconds until a heart rate of 60 beats/min or more is reached. After that, 12-channel ECG is recorded again, heart rate, QT interval (QTc) are assessed. QTc interval is assessed in the II standard lead (in case of interference - in the V5 lead).

EFFECT: method provides increased accuracy of detecting latent prolongation of QT interval on the ECG in athletes.

1 cl, 7 dwg, 2 ex