Relation Between Pulmonary Hypertension and Mitral Stenosis Severity in Patients Undergoing Balloon Mitral Commissurotomy.
10.4070/kcj.1997.27.5.523
- Author:
Byung Jin KIM
;
Yong Hyun PARK
;
Yoong In PARK
;
Jong Hoon LIM
;
Hyun Myung OAH
;
Joon Hoon JEONG
;
Kook Jin CHUN
;
Taek Jong HONG
;
Yung Woo SHIN
- Publication Type:Original Article
- Keywords:
Mitral stenosis;
Pulmonary hypertension
- MeSH:
Atrial Pressure;
Cardiac Output;
Echocardiography;
Electrocardiography;
Female;
Heart Diseases;
Humans;
Hypertension, Pulmonary*;
Mitral Valve;
Mitral Valve Insufficiency;
Mitral Valve Stenosis*;
Pulmonary Artery;
Vascular Resistance
- From:Korean Circulation Journal
1997;27(5):523-531
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: In patients with mitral stenosis, the degree of pulmonary hypertension is expected to be related to the severity of mitral valve obstruction. However, some patients with severe mitral stenosis do not develop reactive pulmonary hypertension. MATERIALS AND METHODS: We evaluated 34 patients with symptomatic mitral stenosis undergoing percutaneous mitral valvuloplasty by clinical, echocardiographic, and invasive hemodynamic(cardiac cathrterization) data. Prevalvuloplasty data were available in 34 subjects[mean age 38+/-9 year ; women 74% ; NYHA class 1 (6 patients), class 2 (17 patients), class 3 (7 patients), class 4 (4 patients) ; in electrocardiography, NSR(23 patients), Atrial fibrillation(11 patients)]. RESULTS: 1) The pulmonary vascular bed gradient was significantly correlated with pulmonary vascular resistance(r=0.91), mean pulmonary artery pressure(r=0.82), transmitral mean pressure gradient(r=0.64) and mitral valve area(r=-0.48). The pulmonary vascular resistance was significantly correlated with mena pulmonary artery pressure(r=0.77), transmiral mean pressure gradient(r=0.61) and mitral valve area(r=-0.54), NYHA functional classification(r=0.36). However, the pulmonary vascular bed gradient and pulmonary vascular resistance was not significantly correlated with age, sex, cardiac output, the severity of mitral regurgitation and mean left atrial pressure. 2) The mean pulmonary artery pressure was significantly correlated with mean left atrial pressure(r=0.80), transmitral mean pressure gradient(r=0.72) and mitral valve area(r=-0.47). 3) When patients were divided into those with a pulmonary vascular bed gradient > 12mmHg and
