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Ann Thorac Surg 1995;59:300
© 1995 The Society of Thoracic Surgeons

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Discussion

Discussion

The first 20% of the full text of this article appears below.

See also page 294.

DR RICHARD E. CLARK (Pittsburgh, PA): Doctor Foster, we know that approximately 70% to 80% of the patients who undergo just coronary artery bypass grafting have an abnormal motion of their septum. Have you used transesophageal echocardiography in such patients, and, if so, have you found that, with left ventricular and biventricular pacing, there is earlier activation of the septum, thus putting the septum in a little different position and making it contract earlier and more synchronously with total systole, to explain the increase in cardiac output? Or do you consider that a reasonable hypothesis?

DR NORMAN J. SNOW (Cleveland, OH):In most situations, we assume that physiologic pacing is the best, in that it produces ``normal conduction.'' To what do you attribute your finding that biventricular pacing is superior to atrial pacing, which you would expect to produce normal ventricular activation?

DR . . . [Full Text of this Article]

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Acute Hemodynamic Effects of Atrio-Biventricular Pacing in Humans

Andrew H. Foster, Michael R. Gold, and Joseph S. McLaughlin
Ann. Thorac. Surg. 1995 59: 294-300. [Abstract] [Full Text]