QT Sensing Rate Responsive Pacing During Subacute Bacterial Endocarditis: A Case Report

A 63‐year‐old woman treated with a QT sensing rate responsive pacemaker following aortic valve replacement developed late subacute bacterial endocarditis. During febrile periods, associated with systemic upset, pacing was physiological as evidenced by an increased heart rate during pyrexia and a decrease when afebrile.

[1]  E. Orinius,et al.  QT prolongation and ventricular fibrillation in acute myocardial infarction. , 2009, Acta medica Scandinavica.

[2]  S. Pehrsson,et al.  QT Sensing Rate Responsive Pacing and Myocardial Infarction: , 1989, Pacing and clinical electrophysiology : PACE.

[3]  R. Nordlander,et al.  Changes in QT and Q‐aT Intervals Induced by Mental and Physical Stress with Fixed Rate and Atrial Triggered Ventricular Inhibited Cardiac Pacing , 1988, Pacing and clinical electrophysiology : PACE.

[4]  J. Sarma,et al.  An exponential formula for heart rate dependence of QT interval during exercise and cardiac pacing in humans: reevaluation of Bazett's formula. , 1984, The American journal of cardiology.

[5]  A. Camm,et al.  The Ventricular Paced QT Interval—The Effects of Rate and Exercise , 1982, Pacing and clinical electrophysiology : PACE.

[6]  H. Boudoulas,et al.  Linear relationship between electrical systole, mechanical systole, and heart rate. , 1981, Chest.

[7]  A. Rickards,et al.  Relation between QT interval and heart rate. New design of physiologically adaptive cardiac pacemaker. , 1981, British heart journal.

[8]  C. Helmers,et al.  QTc intervals in acute myocardial infarction: First‐year prognostic implications , 1980, Clinical cardiology.

[9]  J. .. Abildskov.  Adrenergic effects of the QT interval of the electrocardiogram. , 1976, American heart journal.

[10]  M. Morad,et al.  Relaxing effects of catecholamines on mammalian heart , 1972, The Journal of physiology.