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(Chest. 1968;53:133-137.)
© 1968 American College of Chest Physicians

Hemodynamic Results of Right Atrial Pacing in Cardiac Subjects

Philip Samet M.D., F.C.C.P.1; Cesar Castillo M.D.1; William H. Bernstein M.D.1; and Pedro Fernandez M.D.1

1 Section of Cardiology of the Department of Medicine, Mount Sinai Hospital, Miami Beach, and the University of Miami School of Medicine, Coral Gables, Florida

The effect of increasing heart rate above control sinus rate was investigated in 136 patients with pulmonary emphysema or rheumatic or congenital heart disease. Bipolar right atrial electrode catheter pacing was utilized to increase the atrial rate. At all atrial pacing rates, significant cardiac output increments are noted compared to the outputs during the control sinus rates. The cardiac indices are generally similar at the various atrial pacing rates.






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Copyright © 1968 by the American College of Chest Physicians.