Coronary flow velocity reserve and inflammatory markers in living kidney donors

Ashwin Radhakrishnan, Anna Price, Luke Pickup, Jonathan Law, Kirsty McGee, Larissa Fabritz, Roxy Senior, Richard Steeds, Charles Ferro, Jon Townend

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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Background: Coronary microvascular dysfunction is prevalent in chronic kidney disease (CKD), and may contribute to the development of myocardial dysfunction in CKD. Coronary flow velocity reserve (CFVR) is a marker of coronary microvascular function and falls with increasing CKD stage. Living kidney donors have renal function consistent with early stage CKD and concern has been raised about their cardiovascular risk. No studies to date have investigated the presence of coronary microvascular dysfunction in living kidney donors.

Methods: 25 healthy controls and 23 living kidney donors were recruited and underwent assessment with transthoracic echocardiography, Doppler CFVR, myocardial contrast echocardiography and serum multiplex immunoassay panels.

Results: Doppler CFVR was significantly reduced in living kidney donors compared to controls (mean CFVR 3.4 ± 0.7 vs 3.8 ± 0.6, mean difference 0.4 95% confidence interval 0.03–0.8, p =.036). Quantitative myocardial contrast echocardiography showed a trend towards reduced coronary flow reserve in living kidney donors. Compared to controls, living kidney donors had higher serum high sensitivity C reactive peptide (hsCRP) and lower levels of uromodulin.

Conclusions: This is the first study of CFVR in living kidney donors. We have shown that the modest drop in estimated glomerular filtration rate in living kidney donors is associated with lower values of Doppler CFVR compared to controls, suggesting that isolated reductions in renal function may lead to altered microvascular function. The increase in hsCRP and reduction in uromodulin suggests that chronic subclinical inflammation may contribute to altered microvascular function in this population.

Original languageEnglish
Pages (from-to)141-147
Number of pages7
JournalInternational Journal of Cardiology
Early online date14 Aug 2020
Publication statusPublished - 1 Dec 2020


  • Coronary flow velocity reserve
  • Coronary microvascular dysfunction
  • Inflammation
  • Living kidney donors

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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