Fakülteler / Faculties

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Author: search.filters.author.Aytekin, Cuneytsearch.filters.applied.f.rights: search.filters.rights.info:eu-repo/semantics/openAccess

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    The Role of Choice-Lock Catheter and Trocar Technique in Percutaneous Ablation of Symptomatic Renal Cysts
    (2014) Ozkan, Burak; Harman, Ali; Emiroglu, Baris; Arer, Ilker; Aytekin, Cuneyt; 25035702
    Background: The most common benign lesions of the kidney are simple cysts. They are acquired lesions and mostly affect the elderly population. Objectives: To describe the usage of choice-lock catheter and trocar technique in percutaneous renal cyst treatment and determining long-term outcomes. Patients and Methods: This retrospective study was carried out between February 2000 and July 2011 Eighty-eight cysts all of which were Bosniak type-1 cysts were selected in 75 patients. The treatment indications were flank pain, hydronephros is and hypertension. The choice-lock catheter was used for 84 cysts with the trocar technique. Ninety-five percent ethanol was used as the sclerosing agent. Maximum volume of the injected ethanol was 175 ml. The mean follow-up time after the treatment procedure was 23 months. Sixty-four cysts were located in the cortical and 24 cysts were located at the parapelvic region. Results: Fifty-seven cysts had complete regression, while 31 cysts regressed partially After the procedure, pain was relieved in 44 (82%) patients and the pain alleviated in four (8%). Normotension was obtained in five (62.5%) of the eight hypertensive patients and no hydronephrosis was detected in nine patients. There were no relationship between the localization and the regression rate. No major complications occurred. Conclusions: Percutaneous ethanol sclerotheraphy in simple cysts is a safe, cost-effective and minimally invasive method. We consider that this technique may be an alternative solution in the percutaneous cyst treatment.
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    Results of radiofrequency ablation treatment in primary and metastatic liver cancer
    (2017) Aytekin, Cuneyt; Yuksel, Yavuz
    Objective: The aim of this present study was to retrospectively evaluate the local therapeutic efficiency of radiofrequency ablation (RFA) treatment in patients with primary and metastatic liver cancer. Material and Methods: A total of 35 patients who had undergone RFA in our clinic were included in the study and evaluated retrospectively. Patients were grouped according to their ages, lesion's primary or metastatic formation, number of lesions and lesion sizes. Local tumor growth, new lesion formation and general survival factors were evaluated statistically. Results: During the follow-up after RFA treatment, the residual tumor was determined in the treatment area in only one (1.9%) lesion. Total ablation was achieved in 50 lesions (98.0%). Local tumor growth occured in 9 lesions of eight patients (17.6%). During follow-up, development of a new lesion at a different liver region was seen in 22 (62.8%) patients. Following RFA, one patient had cholecystitis while intraperitoneal minimal hemorrhage was encountered in two patients. Conclusion: As RFA treatment protects intact liver tissues, directly targets the tumor, and the mortality and morbidity rates are lower when compared to other treatments, it is currently considered safe for the treatment of liver tumors.
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    The Efficacy of Flow Diverter Stents in the Treatment of Wide-Necked Intracranial Aneurysms
    (2017) Duman, Enes; Yildirim, Erkan; Ozdemir, Adnan; Arslan, Serdar; Aytekin, Cuneyt; Bovyat, Fatih; 0000-0002-9057-722X; F-4230-2011; ABI-3856-2020
    Background: To present our findings obtained from the treatment of wide-necked intracranial neurysms with flow diverter stents. Patients and Methods: Intracranial aneurysms were determined in 19 patients (14 females, 5 males; mean age, 56.6 years) between May 2011 and June 2014, and the patients were treated using flow diverter stents. A total of 28 flow diverter stents, including 9 Silk and 19 Pipeline stents were used. Occlusion rates evaluated with computed tomography at the end of month 6 and digital subtraction angiography after one year, intraoperative success, morbidity and mortality rates were determined. Results: A total of 20 endovascular interventions, including two interventions in two different aneurysms in one patient were performed in 19 patients. Flow diverter stents were successfully implemented for wide-necked aneurysms at a success rate of 100%. Coil treatment had previously been performed in four patients. Aneurysm occlusion rates were 77.2% at month 6 and 90.9% at the end of month 12. Conclusion: The use of flow diverter stents is a reliable and effective method in the treatment of wide-necked intracranial aneurysms with high aneurysm occlusion, and low morbidity and mortality rates.