Author + information
- Received August 30, 1985
- Revision received March 3, 1986
- Accepted March 19, 1986
- Published online September 1, 1986.
- Richard G. Trohman, MD, FACC*,1,
- Andres R. Palomo, MD1,
- Ngai X. Nguyen, MD1,
- Robert J. Myerburg, MD, FACC1 and
- Kenneth M. Kessler, MD, FACC1
- ↵*Address for reprints: Richard G. Trohman, MD, Electrophysiology Department, Veterans Administration Medical Center, Medical Service (IIIA), 1201 Northwest 16th Street, Miami, Florida 33125.
A 73 year old man presented with angina and nonsus-tained ventricular tachycardia. Cardiac catheterization revealed the dynamic systolic intracavitary gradient of hypertrophic obstructive cardiomyopathy. Abnormal isovolumetric relaxation resulted in the development of a diastolic gradient from the left ventricular outflow tract to the left ventricular apex accompanied by intracavitary regurgitation of contrast material from the outflow tract to the left ventricular body during left ventriculography. This case provides hemodynamic and angiographic confirmation of abnormal isovolumetric relaxation in this syndrome and insight into its mechanism.
- Received August 30, 1985.
- Revision received March 3, 1986.
- Accepted March 19, 1986.
- American College of Cardiology Foundation