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Acute changes in cardiac structural and tissue characterisation parameters following haemodialysis measured using cardiovascular magnetic resonance
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Acute changes in cardiac structural and tissue characterisation parameters following haemodialysis measured using cardiovascular magnetic resonance
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Journal Article
Acute changes in cardiac structural and tissue characterisation parameters following haemodialysis measured using cardiovascular magnetic resonance
2019
Overview
In patients with chronic kidney disease (CKD), reverse left ventricular (LV) remodelling, including reduction in LV mass, can be observed following long-term haemodialysis (HD) and has been attributed to regression of LV hypertrophy. However, LV mass can vary in response to changes in myocyte volume, edema, or fibrosis. The aims of this study were to investigate the acute changes in structural (myocardial mass and biventricular volumes) and tissue characterization parameters (native T1 and T2) following HD using cardiovascular magnetic resonance (CMR). Twenty-five stable HD patients underwent non-contrast CMR including volumetric assessment and native T1 and T2 mapping immediately pre- and post-HD. The mean time between the first and second scan was 9.1 ± 1.1 hours and mean time from completion of dialysis to the second scan was 3.5 ± 1.3 hours. Post-HD, there was reduction in LV mass (pre-dialysis 98.9 ± 36.9 g/m
2
vs post-dialysis 93.3 ± 35.8 g/m
2
, p = 0.003), which correlated with change in body weight (r = 0.717, p < 0.001). Both native T1 and T2 reduced significantly following HD (Native T1: pre-dialysis 1085 ± 43 ms, post-dialysis 1072 ± 43 ms; T2: pre-dialysis 53.3 ± 3.0 ms, post-dialysis 51.8 ± 3.1 ms, both p < 0.05). These changes presumably reflect acute reduction in myocardial water content rather than regression of LV hypertrophy. CMR with multiparametric mapping is a promising tool to assess the cardiac changes associated with HD.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ 59/57
/ 692/4019
/ Dialysis
/ Edema
/ Female
/ Fibrosis
/ Heart
/ Heart Ventricles - pathology
/ Heart Ventricles - physiopathology
/ Humanities and Social Sciences
/ Humans
/ Male
/ Mapping
/ Science
