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Journal Article
Observational Study
Preoperative aldosterone receptor blockade and outcomes of cardiac surgery in patients with chronic kidney disease .
Clinical Nephrology 2018 March
BACKGROUND AND AIMS: Recent clinical evidence demonstrates that chronic low-dose mineralocorticoid receptor antagonists (MRA), when added to optimal treatment, result in reductions in cardiovascular mortality. However, continuation of MRAs before cardiac surgery in patients with CKD has never been evaluated and its potential benefit or harm in this specific clinical setting is largely unknown.
MATERIALS AND METHODS: This is an observational study that included adult CKD patients undergoing cardiac surgery. Patients were divided into two groups according to preoperative use of spironolactone (SPL). The studied outcomes were postoperative acute kidney injury (AKI) requiring dialysis, mortality, and major morbidities (cardiovascular, neurologic, and infectious).
RESULTS: Data on 698 patients with preoperative CKD stage III and IV were analyzed: 99 received SPL preoperatively and 599 did not. At baseline, patients on SPL had higher EuroScore and had more complicated surgery. No significant differences in the incidence of postoperative AKI, myocardial infarction (MI), cardiovascular accident (CVA), sepsis, and mortality were detected between groups in both univariate and multivariate analyses. However, incidence of postoperative low cardiac output state (p < 0.008) was significantly higher in the SPL group. Propensity score matching analyses yielded similar results.
CONCLUSIONS: Although SPL is usually administered to significantly sicker patients, its use is not associated with increased major postoperative complications. However, the modulating effect of SPL in this clinical study remains to be elucidated in a prospective randomized trial. .
MATERIALS AND METHODS: This is an observational study that included adult CKD patients undergoing cardiac surgery. Patients were divided into two groups according to preoperative use of spironolactone (SPL). The studied outcomes were postoperative acute kidney injury (AKI) requiring dialysis, mortality, and major morbidities (cardiovascular, neurologic, and infectious).
RESULTS: Data on 698 patients with preoperative CKD stage III and IV were analyzed: 99 received SPL preoperatively and 599 did not. At baseline, patients on SPL had higher EuroScore and had more complicated surgery. No significant differences in the incidence of postoperative AKI, myocardial infarction (MI), cardiovascular accident (CVA), sepsis, and mortality were detected between groups in both univariate and multivariate analyses. However, incidence of postoperative low cardiac output state (p < 0.008) was significantly higher in the SPL group. Propensity score matching analyses yielded similar results.
CONCLUSIONS: Although SPL is usually administered to significantly sicker patients, its use is not associated with increased major postoperative complications. However, the modulating effect of SPL in this clinical study remains to be elucidated in a prospective randomized trial. .
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