• Nir Flint, Natalia Kaufman, Amir Gal-Oz, Gilad Margolis, Yan Topilsky, Gad Keren, and Yacov Shacham.
• Department of Cardiology, Tel-Aviv Sourasky Medical Center Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
• Clin Res Cardiol. 2017 Feb 1; 106 (2): 120-126.

ObjectiveIncreased transmitral flow velocity (E) to the early mitral annulus velocity (e') ratio (E/e'), signifying increased cardiac filling pressure, was previously found to be associated with deterioration of renal function in patients with congestive heart failure. No study, however, included patients with acute myocardial ischemia. We hypothesized that elevated E/e' ratio would be associated with an increased risk of acute kidney injury (AKI) in ST elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PCI).Study Design And MethodsWe conducted a retrospective study of 804 consecutive STEMI patients between June 2012 and December 2015 who underwent primary PCI and had a comprehensive echocardiographic examination performed within 72 h of hospital admission. Patients were stratified according to E/e' ratio above and ≤15, and assessed for AKI using the KDIGO criteria, defined as either a serum creatinine rise >0.3 mg/dl, or an increase in serum creatinine ≥1.5 times baseline.ResultsPatients with E/e' ratio >15 had lower left ventricular (LV) ejection fraction, higher systolic pulmonary artery pressures, as well as right atrial pressures, and demonstrated worse in-hospital outcomes. Patients with E/e' ratio >15 had more AKI complicating STEMI (27 vs. 7 %; p < 0.001). In multivariate logistic regression model, E/e' ratio >15 was independently associated with AKI (OR = 1.87, 95 % CI 0.99-3.52; p = 0.05). Other variables associated with AKI included diabetes, LV ejection fraction, and glomerular filtration rate.ConclusionsAmong STEMI patients undergoing primary PCI, the early E/e' ratio >15 was associated with increased risk for AKI.

37 keywords...

hide…