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Patient status 10 or more years after 'fresh' homograft replacement of the aortic valve. 1984

A Penta, and S Qureshi, and R Radley-Smith, and M H Yacoub

One hundred and forty consecutive patients from 12 to 74 years old (mean 52) who underwent isolated elective aortic valve replacement with antibiotic-sterilized homografts have been followed for 10 to 13 (mean 11) years. There were four (2.9%) early and 48 (34.3%) late deaths. The overall survival rate was 81% at 5 years and 65% at 10 years. Valve failure occurred in 37 (26.4%) patients and was due to degeneration in 27 (19.3%), technical failure in three (2.1%), and endocarditis in seven (5%). Freedom from valve failure was 90% at 5 years and 72% at 10 years; the mean rate of valve degeneration was 1% per year up to 5 years, 2% from 5 to 8 years, and 5% from 8 to 10 years. Functional evaluation of the patients retaining their original homograft at 10 years showed excellent or good results in 82% and fair or poor results in 18%. A multivariate regression analysis of factors influencing survival and valve failure showed that older age of the patient (p less than .01) and the development of postoperative left bundle branch block (p less than .05) adversely affected survival, and that older age and sex (female) of the patient (p less than .01), the type of original valve lesion (stenosis) (p less than .05), and the interval between death and dissection of the grafts (p less than .01) were good predictors of valve failure.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011183 Postoperative Complications Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery. Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D004868 Equipment Failure Failure of equipment to perform to standard. The failure may be due to defects or improper use. Defects, Equipment,Device Failure,Failure, Equipment,Malfunction, Equipment,Medical Device Failure,Misuse, Equipment,Device Failure, Medical,Device Failures, Medical,Failure, Medical Device,Failures, Medical Device,Defect, Equipment,Device Failures,Equipment Defect,Equipment Defects,Equipment Failures,Equipment Malfunction,Equipment Malfunctions,Equipment Misuse,Equipment Misuses,Failure, Device,Failures, Device,Failures, Equipment,Malfunctions, Equipment,Misuses, Equipment
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006350 Heart Valve Prosthesis A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material. Prosthesis, Heart Valve,Cardiac Valve Prosthesis,Cardiac Valve Prostheses,Heart Valve Prostheses,Prostheses, Cardiac Valve,Prostheses, Heart Valve,Prosthesis, Cardiac Valve,Valve Prostheses, Cardiac,Valve Prostheses, Heart,Valve Prosthesis, Cardiac,Valve Prosthesis, Heart
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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