Coronary collateral function in the transplanted heart: propensity score matching with coronary artery disease.
Details
Serval ID
serval:BIB_63A1E75D1B7E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Coronary collateral function in the transplanted heart: propensity score matching with coronary artery disease.
Journal
Heart (British Cardiac Society)
ISSN
1468-201X (Electronic)
ISSN-L
1355-6037
Publication state
Published
Issued date
04/2011
Peer-reviewed
Oui
Volume
97
Number
7
Pages
557-563
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Publication Status: ppublish
Abstract
The function of the coronary collateral circulation in heart transplant patients has not been investigated in a controlled fashion. Since it partly belongs to the microcirculation, which is affected by transplant vasculopathy, the hypothesis was tested that the coronary collateral circulation in heart transplant recipients is less developed than in coronary artery disease (CAD) patients.
40 heart transplant patients underwent a total of 51 quantitative, coronary pressure-derived collateral measurements and intravascular ultrasound (IVUS). The collateral flow index (CFI) was calculated as mean coronary occlusive pressure divided by mean aortic pressure, both subtracted by central venous pressure. A propensity score matching for angiographic coronary stenosis severity, heart rate, the presence of arterial hypertension and dyslipidaemia was performed using CAD patients of the institutional CFI database (n = 1076) as the control group.
Eighty per cent (32/40) of the heart transplant patients showed transplant vasculopathy as assessed by IVUS (intima thickness ≥ 0.5 mm). Without propensity score matching, CFI was equal to 0.152 ± 0.102 in the heart transplant group (age 55 ± 14 years) and 0.189 ± 0.134 in the entire CAD group (p = 0.054). After matching, CFI was 0.152 ± 0.102 in the heart transplant group and 0.176 ± 0.096 (p = 0.37) in the matched CAD group (age 63 ± 10 years). IVUS data were unrelated to CFI in the heart transplant group.
Heart transplant patients present with the same degree of functional collateral flow compared with a matched group of CAD patients.
40 heart transplant patients underwent a total of 51 quantitative, coronary pressure-derived collateral measurements and intravascular ultrasound (IVUS). The collateral flow index (CFI) was calculated as mean coronary occlusive pressure divided by mean aortic pressure, both subtracted by central venous pressure. A propensity score matching for angiographic coronary stenosis severity, heart rate, the presence of arterial hypertension and dyslipidaemia was performed using CAD patients of the institutional CFI database (n = 1076) as the control group.
Eighty per cent (32/40) of the heart transplant patients showed transplant vasculopathy as assessed by IVUS (intima thickness ≥ 0.5 mm). Without propensity score matching, CFI was equal to 0.152 ± 0.102 in the heart transplant group (age 55 ± 14 years) and 0.189 ± 0.134 in the entire CAD group (p = 0.054). After matching, CFI was 0.152 ± 0.102 in the heart transplant group and 0.176 ± 0.096 (p = 0.37) in the matched CAD group (age 63 ± 10 years). IVUS data were unrelated to CFI in the heart transplant group.
Heart transplant patients present with the same degree of functional collateral flow compared with a matched group of CAD patients.
Keywords
Aged, Cardiac Catheterization/methods, Case-Control Studies, Child, Collateral Circulation/physiology, Coronary Angiography/methods, Coronary Circulation/physiology, Coronary Stenosis/physiopathology, Electrocardiography, Female, Heart Transplantation/physiology, Humans, Male, Middle Aged, Prospective Studies
Pubmed
Web of science
Create date
07/08/2017 11:14
Last modification date
20/08/2019 14:20