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26 result(s) for "Iner, Hasan"
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Different Paths, Same Goals: A Comparative Study on the Safety of Femoral vs. Axillary Arterial Cannulation in VA ECMO
Objectives: This study aimed to evaluate the impact of cannulation site preference—femoral versus axillary—on postoperative complications and in-hospital mortality in patients undergoing peripheral venoarterial extracorporeal membrane oxygenation (VA ECMO) due to cardiogenic shock. Methods: In this single-center, retrospective study, 85 patients who received peripheral VA ECMO support between January 2013 and July 2023 were analyzed. Patients were divided into two groups based on arterial cannulation site: femoral cannulation (FC, n = 47) and axillary cannulation (AC, n = 38). Preoperative, intraoperative, and postoperative variables were compared. Cannulation-related complications were categorized as vascular, neurological, or pulmonary. The primary endpoints were postoperative complications and in-hospital mortality. Results: There were no statistically significant differences between the FC and AC groups in terms of demographics, comorbidities, surgical procedures, or ECMO weaning times. Rates of vascular, neurological, and pulmonary complications were similar between groups. Mortality and postoperative dialysis rates did not differ significantly. The low rate of ischemic complications in the FC group may be explained by the use of distal perfusion catheters, which are considered the standard approach to prevent leg ischemia. Both cannulation techniques demonstrated comparable safety and efficacy profiles. Conclusions: Both femoral and axillary cannulation sites can be safely used for peripheral VA ECMO when selected based on individual patient conditions and institutional experience. Cannulation strategy should be tailored according to the urgency of the clinical situation, anatomical feasibility, and anticipated duration of support. Further prospective, randomized studies are required to establish the optimal cannulation approach.
Should ECMO be used in cardiogenic shock?
A recent meta-analysis included 3997 patients, with 1696 (42%) receiving a concomitant left ventricular unloading strategy while on VA-ECMO (intra-aortic balloon pump 91.7%, percutaneous ventricular assist device 5.5%, and pulmonary vein or transseptal left atrial cannulation 2.8%). A device such as IMPELLA might be the best option to decrease afterload and should be inserted concomitantly (ECMELLA). [...]as recently published, a standardized team-based approach may improve CS outcomes, increasing significantly 30-day survival from 47 to 76.6% [8]. The ENCOURAGE mortality risk score and analysis of long-term outcomes after VA-ECMO for acute myocardial infarction with cardiogenic shock.
Short-term assist devices in postcardiotomy cardiogenic shock
[...]it is actually a short-term left ventricular support system (LVAD) that should be used for recovery of left ventricular functions. Another issue we wondered is the effect of ECMO duration on weaning or mortality rates. Because in some studies, as the duration of ECMO increases, weaning and survival rates increase [2] whereas in some other studies, an opposite result is mentioned [3]. In our study, more than 80% of patients received VA-ECMO combined intra-aortic balloon pump, which might reduce LV afterload and increase coronary blood flow. Since left ventricular assist devices were not registered in China, no patients underwent ventricular assist device after VA-ECMO.
Approach to An Unusual Cardiac Mass: Mitral Annulus Caseoma
Caseous calcification of the mitral annulus (CCMA) is known to be a rare variant of mitral annulus calcification, a chronic and degenerative process of the mitral valve fibrous ring. It usually carries a benign prognosis. The following case demonstrates a huge mitral annulus caseoma that complicated with severe mitral regurgitation and was treated with a successful surgery. The common consensus on the optimal management of CCMA is conservative medical management and avoiding unnecessary surgery. Therewithal, the current indications for surgical intervention include mitral valve dysfunction, strokes and uncertain diagnosis. Aggressive debridement, risk of left ventricular perforation and exposure of caseous debris to the systemic blood flow may increase the risk of a standard mitral valve surgery. Mitral valve replacement should be preferred compared with mitral valve repair.
Comparison of Femoral and Axillary Artery Cannulation in Acute Type A Aortic Dissection Surgery
One of the most important points of the acute type A aortic dissection surgery is how to perform cannulation regarding cerebral protection concerns and the conditions of arterial structures as a pathophysiological consequence of the disease. In this study, femoral and axillary cannulation methods were compared in acute type A aortic dissection operations. The study retrospectively evaluated 52 patients who underwent emergency surgery for acute type A aortic dissection. Patients without malperfusion according to Penn Aa classification were chosen for preoperative standardization of the study groups. The femoral arterial cannulation group was group 1 (n=22) and the axillary arterial cannulation group was group 2 (n=30). The groups were compared in terms of perioperative and postoperative results. There was no statistically significant difference in terms of preoperative data. In terms of postoperative parameters, especially early mortality and new-onset cerebrovascular event, there was no statistically significant difference. Mortality rates in group 1 and group 2 were 13.6% (n=3) and 10% (n=3), respectively (P=0.685). Postoperative new-onset cerebral events ratio was found in 5 (22.7%) in the femoral cannulation group and 6 (20%) in the axillary cannulation group (P=0.812). Both femoral and axillary arterial cannulation methods can be safely performed in patients with acute type A aortic dissection, provided that cerebral protection strategies should be considered in the first place. The method to be performed may vary depending on the patient's current medical condition or the surgeon's preference.
\Overtime Hours Effect\ on Emergency Surgery of Acute Type A Aortic Dissection
Treatment of acute diseases of the aorta is still associated with high mortality and morbidity. It is believed that interventions for these diseases on overtime hours (night shifts or weekend shifts) may increase mortality. In this study, we investigated the effect of performing acute type A aortic dissection surgery on overtime hours in terms of postoperative outcomes. 206 patients who underwent emergency surgery for acute type A aortic dissection were retrospectively evaluated. Two groups were constituted: patients operated on daytime working hours (n=61), and patients operated on overtime hours (n=145), respectively. Chronic obstructive pulmonary disease and repeat surgery were higher in group 1. There was no statistically significant difference between the two groups in terms of operative and postoperative results. Mortality rates and postoperative neurological complications in group 1 were 9.8% and 13.1%, respectively. In group 2, these rates were 13.8% and 12.4%, respectively (P=0.485 - P=0.890). Multivariate analysis identified that cross-clamp time, amount of postoperative drainage, preoperative loss of consciousness and postoperative neurological complications are the independent predictors of mortality. As the surgical experience of the clinics improves, treatment of acute type A aortic dissections can be successfully performed both overtime and daytime working hours.
Effects of age on systemic inflammatory response syndrome and results of coronary bypass surgery
Background: Coronary artery bypass (CAB) surgery triggers systemic inflammatory response syndrome (SIRS) via several mechanisms. Moreover, age is directly correlated with SIRS. We evaluated the effect of age on SIRS and postoperative outcome after CAB surgery. Methods: We retrospectively reviewed the records of 229 patients who had undergone CAB surgery. The patients were divided into three groups according to age: group 1, 75 years old (n = 85). Pre- and peri-operative data were assessed in all patients. SIRS was diagnosed according to the criteria established by Boehme. Results: The average pre-operative EuroSCORE value in group 3 was higher than in the other groups and body surface areas were significantly lower in group 3 than in the other groups (p 0.05). The predictive factors for SIRS were age, EuroSCORE rate, on-pump CAB surgery and intra-aortic balloon pump use. Conclusion: Age was an important risk factor for SIRS during the postoperative period after CAB.
An alternative method of transperitoneal graft introduction in aortobifemoral bypass surgery
Summary Introduction Intestinal injury and bleeding, which usually occurs while taking the graft through the transperitoneal tunnel, is one of the most important complications of aortobifemoral bypass surgery. In this study, case reports were examined where, for some reason, the tunneller instrument could not be used to create the transperitoneal tunnel and the tunnelling forceps was used. In some of these cases, the grafts were taken through conventionally and in others an alternative method was used. Methods Between 2002 and 2013, the records of 81 patients treated surgically by aortobifemoral bypass for peripheral arterial disease, were investigated retrospectively. In the conventional method, after creating a tunnel with tunnelling forceps, the forceps was re-introduced into the tunnel and the graft was clasped and brought through the tunnel. In the alternative method, a nylon tape was left as a guide in the tunnel while creating the tunnel, and the forceps was not introduced again. The graft was taken through the tunnel with the help of the nylon tape. Patients treated with the conventional method were included in group 1 (n = 49) and patients in which the graft was guided with nylon tape were included in group 2 (n = 32). The groups were compared peri-operatively. Results There were no significant differences between the groups in terms of co-morbidity factors. Extubation time, intensive care length of stay, revision for bleeding, other postoperative complications, and infection and late-term infection rates were similar in the two groups (p > 0.05). Hospital length of stay and blood usage were significantly higher in group 1 (p < 0.05). Drainage amounts were higher in group 1 but not statistically significant. Conclusion Using nylon tape to introduce the graft into the femoral area during aortobifemoral bypass operations was found to be more effective than using the tunnelling forceps.
Delayed Sternal Closure for High-Risk Cardiac Surgery Patients: Life-Saving Strategy for Improved Outcomes
Background/Objectives: Delayed sternal closure (DSC) is a useful management strategy for complex cardiac interventions. The aim of this study was to investigate the patients who had DSC in our clinic over a 12-year period and to evaluate the postoperative results. Methods: A total of 124 DSC patients from a total cardiac surgery practice during a 12-year period (n = 6532, 1.8%, between January 2014 and September 2025) were retrospectively analyzed. Preoperative and intraoperative patient characteristics, morbidities, and mortality rates were collected and compared with the group undergoing primary sternal closure (PSC), which were matched with the DSC group in terms of preoperative and intraoperative patient characteristics. Results: A total of 124 (1.8%) patients required DSC, and 33.1% of the patients were females. The indications were bleeding (n = 81, 65%) and hemodynamic instability (n = 43, 35%). Total bypass times, cross-clamp times, and CPB temperature were higher in patients with DSC. A higher rate of inotropic support, intra-aortic balloon pump, extracorporeal lung support, blood transfusion, and bleeding were found in the DSC group. There was no difference in terms of sternal infection rate (2.4%). Intensive care unit stay, hospital stay, and mortality rate were also significantly increased in patients with DSC. Mortality rate in the DSC group was 16.1%. Conclusions: Multiple sternum revisions due to bleeding and low cardiac output syndrome may lead to increased mortality in high-risk patients. Planned postponement of sternal closure in these high-risk cardiac surgery patients helps to reduce perioperative morbidity and mortality.