Effects of Percutaneous Aortic Valve Replacement on Coronary Blood Flow Assessed With Transesophageal Doppler Echocardiography in Patients With Severe Aortic Stenosis
July 20th, 2009 Posted by: admin
Publication year: 2009
Source: The American Journal of Cardiology, In Press, Corrected Proof, Available online 18 July 2009
Itsik, Ben-Dor , Steven A., Goldstein , Ron, Waksman , Lowell F., Satler , Yanlin, Li , …
The aim of this study was to assess the change in coronary flow in patients who underwent percutaneous aortic valve replacement (PAVR) for severe aortic stenosis. The left main coronary artery was visualized using transesophageal echocardiography in 17 patients who underwent PAVR. The peak systolic and diastolic velocities of coronary flow and the time-velocity integral were obtained before and after PAVR using pulsed-wave Doppler. The median age was 80.0 years (interquartile range [IQR] 80.0 to 88.0). Median gradients decreased from 40.0 mm Hg (IQR 35.0 to 50.0) before PAVR to 4.0 mm Hg (IQR 2.75 to 4.2) afterward (p <0.001)….
