Browsing by Author "Aydin, Yunus"

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Computerized Tomography-Guided Stereotactic Biopsy of Intracranial Lesions: Report of 500 Consecutive Cases
(TURKISH NEUROSURGICAL SOC, 2017-01-01) Can, Songul Meltem; Turkmenoglu, Osman Nuri; Tanik, Canan; Uysal, Ender; Ozoner, Baris; Kaldirimoglu, Saime Ayca; Musluman, Ahmet Murat; Yilmaz, Adem; Cavusoglu, Halit; Bayindir, Cicek; Aydin, Yunus
AIM: Computed tomography (CT)-guided stereotactic brain biopsy has been performed in our clinic since March 1998. In this prospective study, we examined the patient data undergoing stereotactic biopsy and the results of biopsies in 500 consecutive patients. MATERIAL and METHODS: Between the dates of March 1998 and January 2015, CT-guided stereotactic biopsies were performed by using the Leksell stereotactic frame system (Elekta Instruments EU, Sweden) in 500 patients. A total of 512 procedures were performed in patients consisting of 184 females (36.8\%) and 316 males (63.2\%), ages ranging from 3 to 81 years (mean 50.40 +/- 16.67). RESULTS: Conclusive histopathological diagnosis was not achieved in 17(3.3\%) of 512 procedures. Of the others, 173 (33.8\%) were high-grade gliomas, 103 (20.1\%) were low-grade gliomas, 36 (7\%) were malignant lymphomas, 34 (6.6\%) were other types of brain tumors, 82 (16\%) were metastasis and 67 (13.1\%) were non-tumoral lesions. Complications were occurred in ten cases: 3 tumoral bleedings, 2 hypertensive cerebral hematomas, 2 peroperative convulsions, 1 epidural hematoma, 1 myocardial infarction and 1 brain edema. The patients who developed myocardial infarction and hypertensive thalamic hematoma died. The mortality was 0.4\% and morbidity was 1.6\% in 512 procedures. CONCLUSION: CT-guided stereotactic biopsy is a reliable and a safe procedure in cases with intracranial lesions when histopathological diagnosis is required for the appropriate treatment.
Diagnosis and Treatment of Transforaminal Epidural Steroid Injection in Lumbar Spinal Stenosis
(KARE PUBL, 2020-01-01) Yuce, Ismail; Kahyaoglu, Okan; Ataseven, Muzeyyen; Cavusoglu, Halit; Aydin, Yunus
Objectives: Transforaminal epidural steroid injection reduces the low back-leg pain and enables daily activities of the patients. In this study, we aim to evaluate the treatment of transforaminal epidural steroid injection for lumbar spinal stenosis, which was mainly performed for lumbar disc herniation and share our diagnostic experience for lumbar spinal stenosis which is treated surgically. Methods: In our study, 37 patients were included who were treated by transforaminal epidural steroid injection for Grade B lumbar spinal stenosis in our clinic between June-2014 and June-2018. We evaluated the patients at the second weeks, third/sixth months and one year after the treatment by Oswestry-Disability-Index and Visual-Analogue-Scale and followed up for surgical treatment after one year. Results: The mean low back and leg pain Visual Analogue Scale was 5.1 +/- 0.3 before the transforaminal epidural steroid injection procedure, and it was 2.7 +/- 0.1 after two weeks. It was 2.8 +/- 0.2, 3.1 +/- 0.1 at three and six months after procedure, respectively. The improvement of low back-leg pain mean Visual-Analogue-Scale is statistically significant at two weeks, three and six months after transforaminal epidural steroid injection procedure, respectively. The mean Oswestry-Disability-Index was 29.6 +/- 0.4 before the transforaminal epidural steroid injection procedure, and it was 14.1 +/- 0.3 after two weeks. It was 15.3 +/- 0.5, 24.4 +/- 0.2 at three and six months after procedure, respectively. The improvement of Oswestry-Disability-Index is statistically significant at two weeks, three-six months. Conclusion: The transforaminal epidural steroid injection is safe procedure for non-surgical treatment of lumbar spinal stenosis and this procedure may be preferred support to the indication of the surgical treatment of level of lumbar spinal stenosis.
Minimally Invasive Open Surgical Approach and Outcomes for Carpal Tunnel Syndrome
(KARE PUBL, 2019-01-01) Yuce, Ismail; Kahyaoglu, Okan; Cavusoglu, Halit; Aydin, Yunus
Objectives: The most common peripheral neuropathy is carpal tunnel syndrome. The present study aims to describe our minimally invasive open surgical approach for carpal tunnel syndrome and evaluate surgical outcomes. Methods: We included 217 patients who were operated in our clinic for carpal tunnel syndrome by minimally invasive open surgical approach. Visual Analogue Scale and Functional Outcome Scale scores were obtained preoperative, postoperative at one month and three months to determine surgical outcomes. Results: The mean age of the patients was 55.4 +/- 12.8 years (32 to 69), 175 (80.6\%) were women and 42 (19.4\%) were men. The assessment of carpal tunnel syndrome's etiology showed that 189 (\%87.1\%) of the cases were idiopathic, 19 (8.8\%) had hypothyroidism, 5 (2.3\%) had rheumatoid arthritis and 4 (1.8\%) were due to pregnancy. The average improvement of VAS between preoperatively and late post-operatively was 5.41 +/- 1.05. The average improvement FOS was 17.44 +/- 3.06. They were statistically significant. Conclusion: The minimally invasive open surgical approach for carpal tunnel syndrome (an average of 1 cm skin incision) is performed with local anesthesia and successful surgical outcomes are achieved.
Ultrasound-Guided Microsurgical Excision for Brachial Plexus Schwannomas: Short-Term Clinical Study
(TURKISH NEUROSURGICAL SOC, 2019-01-01) Yuce, Ismail; Kahyaoglu, Okan; Mertan, Pelin; Cavusoglu, Halit; Aydin, Yunus
AIM: To describe the ultrasound-guided microsurgical excision technique and to evaluate the surgical outcomes of brachial plexus schwannomas. MATERIAL and METHODS: Eleven patients who underwent ultrasound-guided microsurgery for small (<3 cm) brachial plexus schwannomas between 2013 and 2017 were included in our study. RESULTS: The mean age of the patients was 45 years (range: 30-68 years), with six tumors localized on the right and five on the left side. There were no perioperative or postoperative complications. No postoperative deficits were observed in the patients. CONCLUSION: Surgeons can safely and completely excise most of the benign (<3 cm and non-palpable) brachial plexus tumors by the ultrasound-guided microsurgical excision technique.