Abstract
Left ventricular regional wall motion was evaluated in 11 patients with pulmonary hypertension and 18 control subjects. All 11 patients had secondary pulmonary hypertension and less than 20% measured diameter stenosis in any vessel. This study utilizes a video-intensity-based frame-by-frame computerized technique. All pulmonary hypertensive patients showed early diastolic asynchrony in the anterior or apical regions that lasted 100-200 ms. The size of the abnormal area varied from 2 to 20% of the ventricular silhouette. Four patients also showed systolic abnormalities. No abnormalities were detected in the control group. The cause of the asynchrony detected in pulmonary hypertension is probably due to interventricular interaction caused by pressure gradients across the septum.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
