Document Detail

Pulmonary hemodynamics at rest and effort, 6 and 12 months after mitral valve replacement: a slow regression of effort pulmonary hypertension.
MedLine Citation:
PMID:  8112906     Owner:  NLM     Status:  MEDLINE    
An analysis of pulmonary hemodynamics in 22 patients with postrheumatic mitral valve disease using a floating Swan-Ganz type catheter at rest and effort in supine cycloergometer test was done before, 6 and 12 months after mitral valve replacement. Pulmonary hemodynamics data were recorded and calculated at rest and during effort. The most significant changes in almost all analyzed parameters occurred between preoperative and 6 month examination values. However further modest changes mainly during effort were observed between the 6-month and 1-year follow-ups. The mean workload during the bicycle ergometer test rose significantly from 22 +/- 26 W before to 48 +/- 20 W at 6 months and 57 +/- 22 W at 12 months after mitral valve replacement (P < 0.005). We noted a significant improvement in functional class 6 months after mitral valve replacement and a further slight improvement 12 months after. There was a small statistically insignificant decrease in systolic pulmonary pressure between 6 and 12 month measurements. Systolic pulmonary pressure at rest dropped slightly from 39.0 +/- 9.4 to 34.6 +/- 9.4 mmHg. During the bicycle test after 3 min (25 W) the decrease of systolic pulmonary pressure between the 6- and 12-month measurements was statistically significant. Systolic pulmonary artery pressure dropped from 61 +/- 12.4 to 50 +/- 12.3 mmHg. At the same time the drop in pulmonary wedge pressure was smaller and statistically not significant. Pulmonary wedge pressure at rest 6 months after mitral valve replacement was 14.3 +/- 6 mmHg, and after 12 months was 12.7 +/- 4.5; at 25 W, 24.6 +/- 6 vs. 22.1 +/- 5.5, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
T Zieliński; H Pogorzelska; A Rajecka; A Biedermavn; M Sliwiński; J Korewicki
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of cardiology     Volume:  42     ISSN:  0167-5273     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  1993 Nov 
Date Detail:
Created Date:  1994-03-25     Completed Date:  1994-03-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  57-62     Citation Subset:  IM    
II Clinic of Valvular Heart Disease, National Institute of Cardiology, Warsaw, Poland.
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MeSH Terms
Catheterization, Swan-Ganz
Exercise Test
Heart Valve Prosthesis*
Hypertension, Pulmonary / epidemiology,  physiopathology*
Middle Aged
Mitral Valve Stenosis / epidemiology,  physiopathology,  surgery*
Postoperative Period
Pulmonary Circulation / physiology*
Rheumatic Heart Disease / epidemiology,  physiopathology,  surgery*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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