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Coronary microvascular dysfunction is associated with degree of anaemia in end-stage renal disease.
- Source :
-
BMC cardiovascular disorders [BMC Cardiovasc Disord] 2021 Apr 26; Vol. 21 (1), pp. 211. Date of Electronic Publication: 2021 Apr 26. - Publication Year :
- 2021
-
Abstract
- Background: Coronary microvascular dysfunction (CMD) is common in end-stage renal disease (ESRD) and is an adverse prognostic marker. Coronary flow velocity reserve (CFVR) is a measure of coronary microvascular function and can be assessed using Doppler echocardiography. Reduced CFVR in ESRD has been attributed to factors such as diabetes, hypertension and left ventricular hypertrophy. The contributory role of other mediators important in the development of cardiovascular disease in ESRD has not been studied. The aim of this study was to examine the prevalence of CMD in a cohort of kidney transplant candidates and to look for associations of CMD with markers of anaemia, bone mineral metabolism and chronic inflammation.<br />Methods: Twenty-two kidney transplant candidates with ESRD were studied with myocardial contrast echocardiography, Doppler CFVR assessment and serum multiplex immunoassay analysis. Individuals with diabetes, uncontrolled hypertension or ischaemic heart disease were excluded.<br />Results: 7/22 subjects had CMD (defined as CFVR < 2). Demographic, laboratory and echocardiographic parameters and serum biomarkers were similar between subjects with and without CMD. Subjects with CMD had significantly lower haemoglobin than subjects without CMD (102 g/L ± 12 vs. 117 g/L ± 11, p = 0.008). There was a positive correlation between haemoglobin and CFVR (r = 0.7, p = 0.001). Similar results were seen for haematocrit. In regression analyses, haemoglobin was an independent predictor of CFVR (β = 0.041 95% confidence interval 0.012-0.071, p = 0.009) and of CFVR < 2 (odds ratio 0.85 95% confidence interval 0.74-0.98, p = 0.022).<br />Conclusions: Among kidney transplant candidates with ESRD, there is a high prevalence of CMD, despite the absence of traditional risk factors. Anaemia may be a potential driver of microvascular dysfunction in this population and requires further investigation.
- Subjects :
- Adult
Aged
Anemia blood
Anemia diagnosis
Coronary Disease diagnostic imaging
Coronary Disease physiopathology
Cross-Sectional Studies
England epidemiology
Female
Humans
Kidney Failure, Chronic diagnosis
Kidney Failure, Chronic surgery
Kidney Transplantation
Male
Middle Aged
Prevalence
Prognosis
Risk Assessment
Risk Factors
Anemia epidemiology
Coronary Circulation
Coronary Disease epidemiology
Kidney Failure, Chronic epidemiology
Microcirculation
Subjects
Details
- Language :
- English
- ISSN :
- 1471-2261
- Volume :
- 21
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- BMC cardiovascular disorders
- Publication Type :
- Academic Journal
- Accession number :
- 33902440
- Full Text :
- https://doi.org/10.1186/s12872-021-02025-2