†These authors contributed equally.
Academic Editors: Davide Bolignano and Vincenzo Lionetti
Background: This study aimed to investigate the predictors and
prognosis of acute kidney injury (AKI) occurrence among Chinese patients
following left atrial appendage closure (LAAC). Methods: We
retrospectively enrolled 512 consecutive patients who underwent LAAC between
January 2014 and December 2019. AKI was clinically defined according to the
Kidney Disease Improving Global Outcomes serum creatinine criteria. Major adverse
cardiovascular events were defined as the composite of all-cause mortality,
readmission due to heart failure, cardiac surgery, systemic embolism, or bleeding
events. Results: The incidence of AKI was 5.3% and was highest in
patients with chronic kidney disease (CKD) stages 4–5 (25.0%), followed by
those with CKD stages 3a–3b (9.1%), and those with CKD stages 1–2 or without
CKD (3.9% only). Multivariate logistic regression showed that lower body mass
index (odds ratio [OR] = 0.889; 95% confidence interval [CI], 0.803–0.986;
p = 0.017), hypertension (OR = 5.577; 95% CI, 1.267–24.558; p = 0.023), and CKD stages 4–5 (OR = 6.729; 95% CI, 1.566–28.923; p =
0.010) were independent risk factors for AKI development after LAAC. AKI after
LAAC was associated with 3-year major adverse cardiovascular events (33.3% vs.
7.5%, p