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Catheter Cardiovasc Interv ; 98(6): E889-E896, 2021 11 15.
Article in English | MEDLINE | ID: mdl-34043281

ABSTRACT

BACKGROUND: Sarcopenia is a prevalent condition in elderly patients and has been associated with adverse outcomes following transcatheter aortic valve replacement (TAVR). The present study aimed to determine the predictive value of serum creatinine-cystatin C ratio, that is, "Sarcopenia Index" (SI) as a surrogate marker of sarcopenia, and investigate its association with clinical outcomes after TAVR. METHODS: We conducted a retrospective observational study of patients undergoing TAVR between January, 2016 and December, 2018 at Hospital Italiano de Buenos Aires, Argentina. Patients were excluded if <65-years old, presented previous surgical aortic valve replacement, severe chronic kidney disease, or hemodialysis requirement. The SI was obtained at baseline before TAVR. All-cause mortality and/or readmissions for congestive heart failure (CHF) were defined as the primary endpoint. RESULTS: In total 100 patients met inclusion criteria for the purpose of the study. Sarcopenia Index was significantly correlated with Timed Up and Go (r = -0.272, p = .010) and Gait Speed (r = -0.278, p = .005). During follow-up, 5/100 patients died within 30 days and a total of 10/100 patients died at 1-year follow-up. Moreover, survival curves were significantly worse (Log-rank test = p = .02) and CHF readmissions were more prevalent in the lowest SI tertile (Log-rank test = p = .01). In multivariate Cox regression analysis, we identified low SI (cutoff ≤66) as an independent predictor of long-term adverse outcomes (HR = 4.01, 95% CI = 1.31-12.27, p = .015) at 1-year follow-up. CONCLUSION: Sarcopenia Index, surrogate for the degree of skeletal muscle mass (SMM), could be used as a predictor of adverse outcomes in patients undergoing TAVR.


Subject(s)
Aortic Valve Stenosis , Sarcopenia , Transcatheter Aortic Valve Replacement , Aged , Aortic Valve/diagnostic imaging , Aortic Valve/surgery , Aortic Valve Stenosis/diagnostic imaging , Aortic Valve Stenosis/surgery , Humans , Retrospective Studies , Risk Assessment , Risk Factors , Sarcopenia/diagnostic imaging , Severity of Illness Index , Transcatheter Aortic Valve Replacement/adverse effects , Treatment Outcome
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