Researcher: Ünlükaplan, Aytekin
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Ünlükaplan, Aytekin
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Publication Metadata only Ultrasound-guided popliteal sciatic block provides adequate analgesia during urgent endovascular treatment of critical limb ischemia with resting pain(Springer, 2018) N/A; N/A; N/A; N/A; Türeli, Derya; Deniz, Sinan; Ünlükaplan, Aytekin; Oğuzkurt, Levent; Doctor; Doctor; Doctor; Faculty Member; N/A; N/A; N/A; School of Medicine; Koç University Hospital; Koç University Hospital; Koç University Hospital; N/A; N/A; N/A; N/A; 13559Purpose: To demonstrate feasibility and safety of ultrasound-guided popliteal sciatic nerve block for providing analgesia during urgent endovascular treatment of critical limb ischemia with resting pain. Materials and Methods: Ultrasound-guided popliteal sciatic blocks were performed by an interventional radiologist in angiography suite immediately prior to commencement of urgent endovascular treatment of 30 critical limb ischemia patients. Subjective pain levels prior to and following sciatic block were assessed using the visual analog scale (VAS). Need for any supplemental anxiolytics or analgesics during treatment was recorded. Post-procedural evaluation of patient and operator satisfaction levels regarding the intervention was also documented. Results: Ultrasound-guided sciatic block provided adequate analgesia in all patients; VAS scores were 0 (no pain) in 87% and 1–3 (mild to annoying pain) in 13%. Two patients required anxiolytic premedication. Additional analgesia was not required during course of endovascular treatment of any patients. Time necessary to perform sciatic block ranged 3–9 (mean 5.9 ± 1.3) min. Median number of needle attempts was 1 (range 1–3). Onset of satisfactory block ranged from 5 to 20 min (mean 9.4 ± 2.6 min). Mean treatment time was 102.2 ± 36.7 min, and balloon time was 22.4 ± 6.1 min. Patient and operator satisfaction with pain control were very good in all cases. There were no procedure-related complications. Conclusions: Ultrasound-guided popliteal sciatic block is a feasible and safe alternative for providing adequate analgesia during urgent endovascular treatment of critical limb ischemia with resting pain.Publication Metadata only Ultrasound guided popliteal and saphenous nerve blocks for diabetic foot surgery in a morbidly obese patient(Anestezi Dergisi, 2019) Gürkan, Yavuz; Karakaya, Muhammet Ahmet; Özkalaycı, Özlem; Ünlükaplan, Aytekin; Çetin, Seçil; İşgüzar, Agah; Faculty Member; Doctor; Doctor; Doctor; Doctor; Doctor; School of Medicine; N/A; N/A; N/A; N/A; N/A; Koç University Hospital; 154129; N/A; N/A; N/A; N/A; N/AIn this case report, we shared our experience of ultrasound- guided peripheral nerve block application in a high risk patient for anesthesia undergoing diabetic foot surgery. In a patient with hypertension, diabetes mellitus, coronary artery disease popliteal and saphenous nerve blocks were performed. The blocks were performed with a 100 mm block needle, guided by ultrasound. The popliteal block was performed with 15 mL of 2% bupivacaine and 15 mL of 0.5% lidocaine with the knee in flexion and for saphenous nerve block 5 mL of 0.5% bupivacaine and 5 mL 2% lidocaine was administered. Surgery was completed without comprimising the circulatory and respiratory systems. Peripheral nerve blocks should be kept in mind as a safe alternative method of anesthesia in high risk patients. Copyright © 2019 Anesthesiology and Reanimation Specialists' Society.Publication Metadata only A new technique in treatment of Zenker diverticulum: submucosal tunneling endoscopic septum division (Z-POEM) versus classic endoscopic septomyotomy techniques(Mosby-Elsevier, 2019) N/A; Aslan, Fatih; Yılmaz, Onur; Şengün, Berke; Ünlükaplan, Aytekin; Karahan, Salih Nafiz; Koçak, Elif; Faculty Member; Undergraduate Student; Undergraduate Student; Doctor; Researcher; Undergraduate Student; School of Medicine; School of Medicine; School of Medicine; N/A; School of Medicine; School of Medicine; Koç University Hospital; 219202; N/A; 309087; N/A; 337050; N/AN/APublication Metadata only Correlation between blood lactate and regional cerebral oxygen saturation in complex cardiac pathology neonates and infants: the effect on extubation time and ICU stay(Scientific Publishers of India, 2017) Karaaslan, Pelin; Gokay, Banu Vural; Hizarci, Burcu; Ozyuksel, Arda; Akcevin, Atif; N/A; N/A; N/A; Ünlükaplan, Aytekin; Darçın, Kamil; Bozkaya, Tijen Alkan; Doctor; Teaching Faculty; Doctor; N/A; School of Medicine; N/A; Koç University Hospital; N/A; Koç University Hospital; N/A; 203217; 143793Background: The monitoring of regional cerebral O2 saturation (rSO2) with near-infrared spectroscopy (NIRS) is a noninvasive technique to measure tissue oxygenation in the brain. It may be an effective monitoring technique in the early diagnosis of pre-, intra- and post-operative insufficient oxygen supply to the brain in surgery for congenital heart diseases. In pediatric patients, a variety of clinical and laboratory parameters, including serum lactate and regional cerebral oxygen saturation, may be helpful in monitoring global tissue and cerebral oxygen delivery and consumption. Aim: Our study was designed to investigate whether there is a correlation between the NIRS scores and serum lactate levels during congenital heart surgery. Our secondary objective was to define the predictive value of this correlation on the duration of extubation and intensive care unit stay. Method: A total of 82 successive neonatal and infant patients with complex cardiac pathologies were enrolled in the study. Blood lactate levels and NIRS values were measured during the phases of anesthesia induction, sternotomy, cannulation, onset of CPB, the beginning of aortic cross-clamping and the end of the CPB. Study Design: Prospective randomized Results: Patients with normal rSO2 /normal lactate during the operation represented the largest percentage of patients during anesthesia induction (n=50, 60.9%) and sternotomy (n=54, 65.8%). The only negative correlation between lactate and rSO2 was detected during anesthesia induction. The time to extubation and the stay in the intensive care unit were longer in patients with low rSO2 values during anesthesia induction and sternotomy. In the same periods, elevated lactate levels were associated with longer time to extubation and intensive care unit stay than the patients with normal lactate levels. Conclusion: In our study, no correlation was demonstrated between NIRS scores and serum lactate levels in children during congenital heart surgery, except for anesthesia induction. The only negative correlation between the decrease in NIRS scores and the increase in serum lactate levels was observed during anesthesia induction. This result indicated that cerebral NIRS monitoring cannot be used as an indicator of global hypoperfusion in the same way as lactate.Publication Metadata only Single level bilateral ESPB provides effective analgesia for both lower and upper laparoscopic abdominal surgeries(Elsevier Science Inc, 2020) Karakaya, Arif; N/A; N/A; N/A; N/A; N/A; Ünlükaplan, Aytekin; Darçın, Kamil; Çetin, Seçil; Gürkan, Yavuz; Erçelen, Ömür; Doctor; Teaching Faculty; Doctor; Faculty Member; Faculty Member; Koç University Hospital; School of Medicine; Koç University Hospital; School of Medicine; School of Medicine; N/A; 203217; N/A; 154129; 12305N/A