Korean Circ J.  1983 Dec;13(2):313-321. 10.4070/kcj.1983.13.2.313.

A Study on the Echocardiographic Right Ventricular Systolic Time Intervals in Adults

• Lee MM
• Park YB
• Lee YW

• KMID: 2093158
• DOI: http://doi.org/10.4070/kcj.1983.13.2.313

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.

MeSH Terms

Adult*
Arrhythmias, Cardiac
Blood Pressure
Echocardiography*
Heart
Heart Valve Diseases
Humans
Hypertension, Pulmonary
Mitral Valve Stenosis
Systole*
Vascular Resistance