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    The potential effects of ankaferd blood stopper and fibrin sealent on sleeve gastrectomy staple-line healing: An experimental study
    (Spandidos Publ Ltd, 2019) Sakar, Alkan; Bilecik, Tuna; Mayir, Burhan; Oruc, Tahir
    Staple-line bleeding and leakage is a life-threatening complication in obese patients following laparoscopic sleeve gastrectomy. The aim of this study was to examine the potential effects of Ankaferd blood stopper (ABS) and Fibrin Sealant (FS; Tisseel (R)) on sleeve gastrectomy staple-line healing in an experimental animal model. A total of 30 Wistar albino female rats were divided into three groups and were subjected to sleeve gastrectomy with linear stapling. Group A (control group) had nothing administered, Group B was administered FS on the staple-line, and Group C was administered ABS on the staple-line following sleeve gastrectomy. After sacrifice on postoperative day 5, anastomotic burst pressure, tissue hydroxyproline levels and histopathological parameters were measured. The results revealed that group C had the highest mean bursting pressure level. However, the values of this parameter were not found to differ significantly between the groups (P>0.05). Group B and C had a similar hydroxyproline levels but increased compared with group A (P<0.001). Histopathological parameters were similar between the groups, except macrophage scores in group C. In the present experimental study, ABS was demonstrated to improve gastric-sleeved staple-line healing compared with FS. ABS may be used as a novel reinforcement agent in bariatric surgery.
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    The effect of ultrasound-guided erector spinae plane block on postoperative opioid consumption and respiratory recovery in laparoscopic sleeve gastrectomy: a randomized controlled study
    (Springer, 2024) Karaveli, Arzu; Kaplan, Serdar; Kavaklı, Ali Sait; Koşar, Mehmet Nuri; Mayir, Burhan
    Background The aim of this prospective, randomized, controlled study was to evaluate the effect of ultrasound (US)-guided bilateral erector spinae plane (ESP) block on postoperative opioid consumption and respiratory recovery in patients with obesity undergoing laparoscopic sleeve gastrectomy (LSG). Methods The study was conducted on 40 patients scheduled for LSG. The patients were randomly allocated into either the ESP block group or the control group. The US-guided bilateral ESP block was performed preoperatively. The control group received no intervention. Results Postoperative median [IQR] tramadol consumption was significantly lower in the ESP block group [150.0 [100-200] mg vs 450.0 [400-500] mg, p < 0.0001]. Postoperative spirometric variables were significantly impaired in both groups, compared with preoperative variables (p < 0.0001). Intraoperative median [IQR] fentanyl consumption was 200.0 [200-200] mu g in the ESP block group, and 350.0 [300-400] mu g in the control group (p < 0.0001). Postoperative mean pain scores at rest and during movement were significantly lower in the ESP block group, at all time points (p < 0.05). In terms of mean arterial PH, Horowitz ratio, and PaCO2, there was no statistically significant difference between the groups (p > 0.05). None of the patients experienced postoperative respiratory adverse events and/or block-related complications. Conclusions US-guided bilateral ESP block significantly reduced both intraoperative and postoperative analgesic consumptions and provided effective postoperative pain control for patients with obesity undergoing bariatric surgery. Following bariatric surgery, all patients' postoperative pulmonary functions deteriorated. The effect of US-guided bilateral ESP block on postoperative respiratory recovery could not be clearly demonstrated. Randomized controlled studies with a larger patient population are necessary.