Browsing by Author "Miličić, Miroslav (22934854000)"

Introduction/Objective Even with the current treatment, mortality from aortic dissection remains high. The study aimed to evaluate the early postoperative outcome of patients with aortic dissection and identify which factors could influence it. Methods The study included all consecutive patients who underwent surgery for acute aortic dissection type A from 2012 to 2017. We registered all parameters that could potentially impact the outcome (general data, medical history, clinical and cardiological diagnostic test findings, preoperative complications, type of cannulation and the operation performed, additional surgical procedures, operation duration, etc.). The patients were surgically treated according to the current protocols. The main outcome measures were complications and mortality during a one-month postoperative period. All data collected pre-, intra-, and postoperatively were compared and statistically analyzed. Results The study included 246 patients, 57.54 ± 12.88 years old on average, and mostly of male sex (74%). Early postoperative mortality occurred in 17% of the patients. Preoperative chronic kidney insufficiency (p = 0.005) and cerebrovascular insult (p = 0.047) and tamponade (p = 0.036) were the major risk factors for postoperative complications and mortality. Long hypothermic cardiac arrest (p = 0.001), cross-clamp (p = 0.017) and cardiopulmonary bypass time (p = 0.036) increased postoperative compli-cations. Postoperative complications started occurring after ≥ 33.5 minutes hypothermic cardiac arrest and ≥ 67.5 minutes cross-clamp time. Postoperative complications occurrence increased (p = 0.034), while performing anterograde cerebral perfusion decreased the frequency of lethal outcome (p = 0.001). Conclusion The majority of patients surgically treated for acute aortic dissection had good postoperative outcome. However, numerous pre-, intra-, and postoperative factors can impact patient survival. © 2021, Serbia Medical Society. All rights reserved.

Background/Aim. A protection of heart and other organs from ischemic-reperfusion injuries can be provided by remote ischemic preconditioning (RIPC) by brief episodes of ischemia and reperfusion in distant tissues. The aim of this study was to assess effects of RIPC on early outcomes in patients underwent coronary bypass surgery (CABG) following acute coronary syndrome without persistent ST segment elevation (NSTEMI ACS). Methods. This trial included 42 patients randomized into two groups: the group 1 received RIPC and the group 2 was without RIPC (control group). Pre-, intra- and postoperative parameters were compared but primary endpoint was myocardial injury reflected as value of troponin I measured preoperatively and 1, 6, 12, 24, 48 and 72 h postoperatively. The secondary endpoints were hemodynamic parameters, blood loss, intensive care unit stay, mortality etc. Results. The groups 1 and 2 were similar in preoperative characteristics including age, New York Heart Association (NYHA) class, EuroSCORE II, left ventricular ejection fraction. The only significant difference between groups was for triple vessel coronary disease with dominance in the RIPC group [20 (100%) vs. 17 (77.3%), p = 0.049]. Cardiopulmonary bypass time [mean (± standard deviation): 83.0 (22.9) vs. 67.0 (17.4) minutes, p = 0.015], cross clamp time [57.9 (15.4) vs. 44.3 (14.3) minutes, p = 0.005] and number of conduits [median (25–75th percentile): 23.5(3–4) vs. 3(2–3), p = 0.002] were different. Other intra- and postoperative variables did not differ between groups. There were no differences in C reactive protein levels and postoperative hemodynamic parameters. Average troponin values in all time points revealed no significant differences between groups (p0h = 0.740, p1h = 0.212, p6h = 0.504, p12h = 0.597, p24h = 0.562, p48h = 0.465 and p72h = 0.715, respectively). Furthermore, there were no significant differences in adverse events, hospital stay and mortality between groups. Conclusion. Treatment with RIPC during CABG following NSTEMI ACS did not provide better myocardial protection and hemodynamics characteristics but further larger randomized studies are needed t. prove its real value. © 2020 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.