Person: BALTACIOĞLU, FEYYAZ
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BALTACIOĞLU
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FEYYAZ
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Publication Metadata only Acute Obstructive Hydrocephalus due to a Giant Posterior Cerebral Artery Aneurysm in a Pediatric Patient(S. Karger AG, 2018) DAĞÇINAR, ADNAN; Sarica C., Tanrikulu B., Sahin Y., Daǧçlnar A., Baltacioglu F., Bayri Y.Introduction: Intracranial aneurysms are very rare in children. Although subarachnoidal hemorrhage (SAH) is by far the most common presentation of aneurysms in the majority of the pediatric case series, it is not rare for an unruptured aneurysm to present with a mass effect. Acute hydrocephalus is a common finding following aneurysmal SAH. However, this malady may develop even in the absence of SAH but secondary to direct obstruction by a giant aneurysm. This situation is extremely rare in children, with only a few known case reports in the literature. Case Report: We report the case of a 10-year-old girl who presented with signs and symptoms of acute hydrocephalus; further radiological evaluation revealed obstructive hydrocephalus and a giant posterior cerebral artery aneurysm. Following endovascular treatment of the aneurysm, hydrocephalus was completely resolved, and the patient was symptom free. Conclusion: Although they are very rare, giant intracranial aneurysms must be kept in mind during the differential diagnosis of pediatric acute hydrocephalus cases. Hydrocephalus may resolve spontaneously after the successful treatment of these aneurysms. © 2018 S. Karger AG, Basel. Copyright: All rights reserved.Publication Metadata only Stent-assisted coil embolization of challenging intracranial aneurysms: initial and mid-term results with low-profile ACCLINO devices(SPRINGER WIEN, 2016) TÜRELİ, DERYA; Tureli, Derya; Sabet, Soheil; Senol, Serkan; Andac, Nurten; Donmez, Halil; Geyik, Serdar; Baltacioglu, Feyyaz; Cekirge, SaruhanStent-assisted coiling using low-profile, self-expandable and retrievable stents is a valid option in endovascular treatment of challenging intracranial aneurysms. This study aims to evaluate the feasibility and efficacy of ACCLINO 1.9 F and ACCLINO Flex stent systems, designed for use as adjunctive products in coil embolization of intracranial aneurysms. Case files of 47 patients, and 52 aneurysms in total, treated with at least one ACCLINO 1.9 F or ACCLINO Flex stent were retrospectively evaluated. Technical success, complications, and angiographic outcomes were assessed based on immediate post-procedural controls along with 6th and 12th month angiograms. Mechanical untoward event rate, including asymptomatic complications, is 9.6 % (five out of 52 aneurysms). Failed dual-stenting attempt rate is 15.4 % (two out of 13). Overall procedure-related morbidity is 4.2 % with no neurologic sequelae. Initial occlusion rate is 90.4 % (47 aneurysms). One patient had residual filling in the aneurysm neck, which was stable throughout follow-up. The remaining four cases had spontaneous follow-up occlusion. Recanalization rate at 6th month is 2.1 % with one aneurysm requiring retreatment. One patient was lost to follow-up. There is no mortality associated with treatment. Stent-assisted coil embolization with ACCLINO stents in single or dual configurations is a feasible treatment option for challenging intracranial aneurysms. Follow-up results are encouraging; techniques were effective in complex cases and there were no clinically significant adverse outcomes.Publication Metadata only Transarterial microcatheter glue embolization of the bronchial artery for life-threatening hemoptysis: Technical and clinical results(ELSEVIER IRELAND LTD, 2010) BALTACIOĞLU, FEYYAZ; Baltacioglu, Feyyaz; Cimsit, Nuri Cagatay; Bostanci, Korkut; Yuksel, Mustafa; Kodalli, NihatObjectives: To report our experience with transarterial glue embolization of the bronchial artery for life-threatening hemoptysis. Materials and methods: Twenty-five patients underwent bronchial artery embolization, using coaxial microcatheter technique, with a liquid agent, n-butyl-2-cyanoacrylate (NBCA), named glue, for life-threatening hemoptysis. The technical and clinical outcomes were followed in terms of immediate control of bleeding, recurrence of hemoptysis and complications of the procedure. Results: Four patients had acute hemoptysis when they were evaluated. The average number of arteries embolized per patient was 2.9. BAEs were successful in controlling hemoptysis immediately in all 25 patients (100%) and in 24 patients (96%) at 1 month follow-ups. One patient had recurrent hemoptysis on the tenth day after embolization. The follow-up time ranged from 2 to 63 months (mean 14 months). Six patients (25%) died all as a result of their disease process. Bleeding recurred in 3 patients after 30 days (7th, 11th, 12th months). One patient had vomitting attacks with dysphagia after the procedure that lasted 24 h. Three patients had transient thoracic pain lasting 3-5 days. There were no procedure related spinal or vascular complications. Conclusions: Glue embolization with microcatheter technique is a safe and effective treatment in cases of life-threatening hemoptysis with a very high rate of success and low rate of complications. (C) 2008 Elsevier Ireland Ltd. All rights reserved.Publication Metadata only Temporal bone measurements on high-resolution computed tomography(B C DECKER INC, 2004) BALTACIOĞLU, FEYYAZ; Ekinci, G; Koc, A; Baltacioglu, F; Veyseller, B; Altintas, O; Han, TThe distances between the important neural and vascular structures in normal temporal bones were measured by using high-resolution computed tomography (HRCT). We examined 100 normal ears in 50 subjects ranging in age from 15 to 72 years (mean age 39 years). We measured the distances from the medial lip of the posterior wall of the internal auditory canal to the medial wall of the vestibule (mean 9.7 mm), from the cochlea to the tympanic segment of the facial canal (mean 1.76 mm), from the medial wall of the vestibule to the lateral aspect of the lateral semicircular canal (mean 8.03 mm), and from the external auditory canal to the lateral sinus (mean 13.2 mm). HRCT examination is the best method for defining the morphology of temporal bone.Publication Metadata only Renal artery stenting in solitary functioning kidneys: Technical and clinical results(ELSEVIER IRELAND LTD, 2006) BALTACIOĞLU, FEYYAZ; Sahin, S; Cimsit, C; Andac, N; Baltacioglu, F; Tuglular, S; Akoglu, EObjective: To evaluate the clinical and technical results of renal artery stenting for the treatment of renovascular hypertension and renal failure in patients with solitary functioning kidney. Materials and methods: Fifteen patients with solitary functioning kidney underwent renal artery stenting and were followed up for 12-60 months. Before the procedures, systolic and diastolic blood pressures and serum creatinine levels were measured and the number of antihypertensive drugs was recorded and followed up after stenting. In case of restenosis, either in-stent percutaneous transluminal renal angioplasty or stent-in-stent placement was performed. Results: Primary technical success rate was 100%. One lesion was nonostial while 14 were ostial. Primary patency rates were 100% for 6 months, 92.3% for 12 months, and 69.2% for 24 months. The secondary patency rate at 24 months was 100%. The differences between the baseline and postprocedural values of systolic blood pressures, diastolic blood pressures and the number of antihypertensive drug were statistically significant (P < 0.05), except the values of serum creatinine. Hypertension was cured in 1 (6.7%) patient, improved in 4 (26.6%) and stabilized in 10 (66.7%) patients. Renal function improved in 9 (60%), stabilized in 4 (26.6%), and deteriorated in 2 (13.4%) patients. Minor complication rate was 13.4% and major complication rate was 13.4%. Conclusion: Revascularization of renal artery stenosis using stent in solitary functioning kidneys is a safe and efficient procedure with high primary technical results, low restenosis rates and acceptable complication rates. It has an improving and controlling effect on blood pressure and renal functions. (c) 2005 Elsevier Ireland Ltd. All rights reserved.Publication Metadata only Is any landmark reliable in vertebral enumeration? A study of 3.0-Tesla lumbar MRI comparing skeletal, neural, and vascular markers(ELSEVIER SCIENCE INC, 2014) TÜRELİ, DERYA; Tureli, Derya; Ekinci, Gazanfer; Baltacioglu, FeyyazPurpose: This study aimed to determine the reliability of the iliolumbar ligament (ILL), 12th costa, aortic bifurcation (AB), Tight renal artery (RRA), and conus medullaris (CM) for numbering of vertebral segments. Subjects and methods: Five hundred five patients underwent routine lumbar MRI examinations including a cervicothoracic sagittal scout and T1 and T2-weighted sagittal and axial turbo spin echo images. Images were evaluated by two radiologists separately. Results: The identifiability of ILL and 12th costa were 85.7% and 48.1%. AB, RRA, and CM were located more caudally in lumbarized S1 and more cranially in sacralized L5 cases. Conclusion: Landmarks suggested by previous studies are not reliable alternatives to cervicothoracic scout images due to wide ranges of distribution and inconsistencies in identification. (C) 2014 Elsevier Inc. All rights reserved.Publication Metadata only Utility of Interobserver Agreement Statistics in Establishing Radiology Resident Learning Curves During Self-directed Radiologic Anatomy Training(ELSEVIER SCIENCE INC, 2015) BALTACIOĞLU, FEYYAZ; Tureli, Derya; Altas, Hilal; Cengic, Ismet; Ekinci, Gazanfer; Baltacioglu, FeyyazRationale and Objectives: The aim of the study was to ascertain the learning curves for the radiology residents when first introduced to an anatomic structure in magnetic resonance images (MRI) to which they have not been previously exposed to. Materials and Methods: The iliolumbar ligament is a good marker for testing learning curves of radiology residents because the ligament is not part of a routine lumbar MRI reporting and has high variability in detection. Four radiologists, three residents without previous training and one mentor, studied standard axial T1- and T2-weighted images of routine lumbar MRI examinations. Radiologists had to define iliolumbar ligament while blinded to each other's findings. Interobserver agreement analyses, namely Cohen and Fleiss kappa statistics, were performed for groups of 20 cases to evaluate the self-learning curve of radiology residents. Results: Mean kappa values of resident-mentor pairs were 0.431, 0.608, 0.604, 0.826, and 0.963 in the analysis of successive groups (P <.001). The results indicate that the concordance between the experienced and inexperienced radiologists started as weak (kappa <0.5) and gradually became very acceptable (kappa >0.8). Therefore, a junior radiology resident can obtain enough experience in identifying a rather ambiguous anatomic structure in routine MRI after a brief instruction of a few minutes by a mentor and studying approximately 80 cases by oneself. Conclusions: Implementing this methodology will help radiology educators obtain more concrete ideas on the optimal time and effort required for supported self-directed visual learning processes in resident education.Publication Metadata only Flow Redirection Endoluminal Device (FRED) with or without Adjunctive Coiling in Treatment of Very Large and Giant Cerebral Aneurysms(SPRINGER HEIDELBERG) BALTACIOĞLU, FEYYAZ; Kandemirli, Sedat Giray; Baltacioglu, Feyyaz; Jesser, Jessica; Kizilkilic, Osman; Islak, Civan; Mohlenbruch, Markus; Kocer, NaciPurpose Flow diverter stents are gaining wider use in the treatment of complex intracranial aneurysms; however, there are limited data on occlusion and complication rates of flow diverters in very large and giant aneurysms. This study assessed the safety and efficacy of flow redirection endoluminal device (FRED) and FRED Jr. stents in aneurysms >= 20 mm. Methods We retrospectively analyzed all aneurysms >= 20 mm treated with FRED/FRED Jr. between January 2010 and June 2020 from three centers. Endpoints for clinical safety were absence of major stroke, aneurysmal rupture, or death and complete or near-complete occlusion for efficacy. Results A total of 45 patients with very large (28 cases) and giant aneurysms (17 cases) were treated with FRED (41 cases), and FRED Jr. (4 cases) stents. The majority of the aneurysms (40/45, 88.9%) were in the anterior circulation. Adjunctive aneurysm coiling was performed in 21 aneurysms (46.7%). Technical complications were encountered in 4 procedures (8.9%). Ischemic and hemorrhagic complication rates were 6.7% and 8.9%, respectively. There was no case with major stroke. The mortality rate was 8.9%, and all cases were due to hemorrhagic complications from aneurysmal rupture. Median angiographic follow-up was 21.5 months (range 3-60 months). Complete occlusion was achieved in 32 aneurysms (71.1%), and near-complete occlusion in 5 cases (11.1%). Conclusion The use of FRED/FRED Jr. for the treatment of aneurysms >= 20 mm achieved a long-term aneurysm occlusion rate and a safety profile comparable to the large series reported with other flow diverter stents.Publication Metadata only Transarterial glue embolization in iatrogenic renovascular injuries(SPRINGER, 2008) BALTACIOĞLU, FEYYAZ; Cimsit, Nuri Cagatay; Baltacioglu, Feyyaz; Cengic, Ismet; Akpinar, Ihsan Nuri; Ilker, Yalcun; Turkeri, LeventIatrogenic injuries of the intrarenal arterial system include pseudoaneurysms and fistulas. They can cause hematuria and life-threatening hemodynamic instability, and therefore should be treated promptly. Endovascular treatment is recommended for these cases due to its effectiveness. Among the different agents used for embolization, n-butyl-2-cyanoacrylate (glue) has rarely been used. We present 15 patients with pseudoaneurysms and/or arteriovenous or caliceal fistulas who were treated by glue embolization. In our patient group, five had a history of percutaneous nephrolithotomy, six had renal biopsies, three had nephron-sparing surgery, and one had percutaneous nephrostomy. Glue embolizations were performed with the microcatheter technique. All patients were successfully treated, and all but one had excellent follow-ups. One patient suffered from disseminated intravascular coagulation secondary to transfusion and died after the procedure. We think glue embolization is a safe and effective treatment for this group of patients and present our experience along with the technical approach.Publication Metadata only MR imaging, CT, and angiography features of endolymphatic sac tumors: report of two cases(SPRINGER, 2002) BALTACIOĞLU, FEYYAZ; Baltacioglu, F; Ekinci, G; Ture, U; Sav, A; Pamyr, N; Erzen, CLow-grade adenocarcinoma of endolymphatic sac origin is a rare tumor of the temporal bone. There are some difficulties in its differential diagnosis from other vascular and non-vascular tumors of the temporal bone. However its radiological differentiation from other tumors of the temporal bone is important for surgical planning. We present a report on two endolymphatic sac tumors with some specific radiological findings which can support a correct diagnosis.
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