Difficult cases in heart failure: Atrioventricular interval optimization utilizing thoracic electrical bioimpedance.
The authors describe the use of thoracic electrical bioimpedance, a noninvasive, simple, low risk technique to optimize atrioventricular delay in a patient with a dual chamber pacemaker, right ventricular infarct, and symptoms NYHA functional class III-IV. Optimization of the atrioventricular interval was associated with improvement of hemodynamic parameters and resolution of the symptoms of heart failure. The application of noninvasive hemodynamic parameters might have a great deal of impact in the management of patients with several cardiovascular diseases. Multicenter studies are underway. (c)1999 by CHF, Inc.
Young
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Tulane University Medical Center, 1415 Tulane Avenue, New Orleans, LA 70112.
Smart
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Ventura
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