title: Long-term results of percutaneous mitral valvuloplasty with the Inoue balloon catheter.
abstract: The initial 85 patients who successfully underwent percutaneous mitral valvuloplasty (PMV) with the Inoue balloon catheter at the Guangdong Cardiovascular Institute between November 1985 and November 1988 had a mean follow-up period of 5 +/- 1 year (range 43 to 79 months). Before and after PMV and at follow-up, mean diastolic mitral gradients by the catheter method were 17.5 +/- 6.2, 3.1 +/- 3.3 and 3.3 +/- 3.4 mm Hg, respectively (p < 0.001 before vs after PMV and before vs follow-up; and p > 0.05 after PMV vs follow-up). Mean diastolic mitral gradients by the Doppler method were 18 +/- 6, 8 +/- 5 and 9 +/- 5 mm Hg, respectively (p < 0.001 before vs after PMV and before vs follow-up; and p > 0.05 after PMV vs follow-up). Mean diastolic mitral gradients by the Doppler method were 18 +/- 6, 8 +/- 5 and 9 +/- 5 mm Hg, respectively (p < 0.001 before vs after PMV and before vs follow-up; and p > 0.05 after PMV vs follow-up). Mitral valve areas by the echo-Doppler method were 1.1 +/- 0.3, 2.0 +/- 0.4 and 1.8 +/- 0.5 cm2, respectively (p < 0.001 before vs after PMV and before vs follow-up; and p > 0.05 after PMV vs follow-up). Phonocardiographic and vectorcardiographic studies, and cardiopulmonary exercise testing showed significant improvement after PMV and at follow-up.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.
authors.forename: C R
authors.initials: CR
authors.lastname: Chen
authors.forename: T O
authors.initials: TO
authors.lastname: Cheng
authors.forename: J Y
authors.initials: JY
authors.lastname: Chen
authors.forename: Y L
authors.initials: YL
authors.lastname: Zhou
authors.forename: J
authors.initials: J
authors.lastname: Mei
authors.forename: T Z
authors.initials: TZ
authors.lastname: Ma
mesh_terms: D000293:Adolescent; D000328:Adult; D016279:Atrial Function, Left / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology; D002302:Cardiac Output / Q000502:physiology; D002404:Catheterization / Q000295:instrumentation*; D004562:Electrocardiography; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000628:therapy*; D010701:Phonocardiography; D011651:Pulmonary Artery / Q000503:physiopathology; D013499:Surface Properties; D016896:Treatment Outcome; D014672:Vectorcardiography; D016277:Ventricular Function, Left / Q000502:physiology