A Study on the Echocardiographic Right Ventricular Systolic Time Intervals in Adults.
10.4070/kcj.1983.13.2.313
- Author:
Myoung Mook LEE
;
Young Bae PARK
;
Young Woo LEE
- Publication Type:Original Article
- MeSH:
Adult*;
Arrhythmias, Cardiac;
Blood Pressure;
Echocardiography*;
Heart;
Heart Valve Diseases;
Humans;
Hypertension, Pulmonary;
Mitral Valve Stenosis;
Systole*;
Vascular Resistance
- From:Korean Circulation Journal
1983;13(2):313-321
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Echocardiographic right ventricular systolic time invervals were measured in 69 cases of congenital and acquired valvular heart disease, who have neither arrhythmia nor conduction disturbances. The results were as follows: 1) Right ventricular preejection periord(RVPEP) relates with main pulmonary arterial systolic pressure (MPA(s)), main pulmonary arterial diastolic pressure (MPA(d)), main pulmonary arterial mean pressure (MPA(m)), pulmonary vascular resistance (Rp), and the ratio of pulmonary systemic vascular resistance (Rp/Rs) (r=0.746, 0.738, 0.755, 0.721, 0.687). 2) Rifht ventricular ejection time relates with MPA (s), MPA (d), MPA (m), Rp, and Rp/Rs (r=-0.580, -0.541, -0.544, -0.577, -0.420). 3) The ratio of right ventricular preejection period-right ventricular ejection time (RVPEP/RVET) relates with MPA (s), MPA (d), MPA (m), Rp and Rp/Rs (r=0.789, 0.784, 0.781, 0.778, 0.695). 4) Pulmonary hypertension and increased pulmonary vascular resistance can be predicted, when RVPEP/RVET is over 0.3. 5) By serial preoperative and postoperative measurements, pulmonary hypertension and increased pulmonary vascular resistance were relieved in the cases of mitral stenosis. But in the cases of congenital heart diseas there were no significant change in RVPEP/RVET ratio.
