6,11–14 A junctional or nodal rhythm occurs when the QRS rate is faster than the resting P wave or sinus rate which is slowed in athletes due to increased vagal tone (figure 4). The QRS rate for ...

Eleven studies describing sinoatrial (SA) nodal, atrioventricular (AV) nodal or infra-Hisian conduction parameters in the setting of cocaine use were found. Fourteen studies and two case series ...

Two players had signs of ventricular hypertrophy on ECG; however, this is only based on voltage criteria, and one player each had signs of interspersed junctional rhythm or atrial extrasystoles. All ...

Increased heart rate in the setting of acute cocaine use was ubiquitous in experimental studies investigating cocaine-associated rhythm disturbances. Most of the studies providing temporal data ...

Circadian rhythms are the regular, daily cycles of biological processes or activities, including the regular and predictable variation in the levels of many circulating hormones, ions and the ...

Dr. Kamalan Jeevaratnam was previously the Royal College of Surgeons Ireland, Lead in Physiology at the School of Medicine, PU-RCSI based in Kuala Lumpur. As an academician, he has previously ...