Sinus arrest / sinus pause occurs when sinus node’s principal pacemaker cells fail to fire. A pause should be more than 1.5 times the basic cycle length.
Rationale for secondary prophylaxis in rheumatic fever: The high recurrence rate of rheumatic fever and carditis with recurrent streptococcal infection is the basis for secondary prophylaxis of
Potential hazards of using MRI with Pacemakers: MRI uses a very strong magnetic field which could be deleterious to the implanted cardiac pacemaker in various ways. Mechanical forces
Patients with a homozygous deletional form of ACE gene (dd) have increased circulating ACE level and hence are more likely to develop myocardial infarction