Document Detail


Clinical and haemodynamic observations after combined aortic and mitral valve replacement with the Björk-Shiley tilting disc valve prosthesis. Early and late results in 25 patients.
MedLine Citation:
PMID:  155304     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Combined mitral and aortic valve replacement with the Björk-Shiley tilting disc valve (pyrolite) was performed in 25 unselected patients characterized by markedly impaired functional capacity, hypokinetic central circulation and cardiomegaly before operation. Surgery was performed during extracorporeal circulation with deep hypothermia. The mitral valve was replaced first in all cases. There were no intra-operative deaths, but 2 patients died while still in hospital (8.0%). One patient died 2 months postoperatively due to progressive heart failure. The remaining patients--with the exception of one who had died of cancer of the ovary--were re-examined in average 28.7 (18-40) months postoperatively. Most patients had improved symptomatically and were in functional classes I-II (N.Y.H.A.). The haemodynamic findings indicated restoration to normal resting values of cardiac output, pulmonary artery pressure and pulmonary vascular resistance, but with an increase in left ventricular end-diastolic pressure (LVEDP). The mean diastolic gradient across the mitral prosthesis varied from 0 to 11 mmHg, while simultaneous pressure recordings from the left ventricle and the aorta, with one exception, disclosed no systolic pressure gradients (peak) across the aortic valve. Postoperative arterial thrombo-embolic complications occurred in 2 patients, resulting in only minor neurological sequelae.
Authors:
S Nitter-Hauge; T Frøysaker; I Enge; H Rostad
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Scandinavian journal of thoracic and cardiovascular surgery     Volume:  13     ISSN:  0036-5580     ISO Abbreviation:  Scand J Thorac Cardiovasc Surg     Publication Date:  1979  
Date Detail:
Created Date:  1979-06-26     Completed Date:  1979-06-26     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0121343     Medline TA:  Scand J Thorac Cardiovasc Surg     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  25-31     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aortic Valve / radiography,  surgery*
Aortic Valve Insufficiency / surgery
Aortic Valve Stenosis / surgery
Cardiac Output
Cardiomegaly / etiology,  surgery
Female
Heart Catheterization
Heart Valve Prosthesis* / mortality
Hemodynamics*
Humans
Male
Middle Aged
Mitral Valve / radiography,  surgery*
Mitral Valve Insufficiency / surgery
Mitral Valve Stenosis / surgery
Postoperative Complications
Prospective Studies
Thromboembolism / etiology

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


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