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Türk Ç, Bahadır S, Camlar M, Gürel Ç, Buhur A, Kuşçu GC. Effects of lercanidipine on traumatic spinal cord injury: an experimental study. ULUS TRAVMA ACIL CER 2024; 30:73-79. [PMID: 38305651 DOI: 10.14744/tjtes.2024.03660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
BACKGROUND Spinal cord injury is a devastating trauma that leaves survivors at risk for several medical complications throughout their lives. Lercanidipine, a third-generation calcium channel blocker, possesses anti-apoptotic, anti-inflammatory, and antioxidative properties. This study aimed to evaluate the neuroprotective effects of lercanidipine in an experimental spinal cord trauma model. METHODS Twenty-one Wistar rats were randomly assigned to three groups. Group 1 (G1) underwent laminectomy. Group 2 (G2) were subjected to trauma following laminectomy. Group 3 (G3) were exposed to trauma following laminectomy and treated with lercanidipine. Lercanidipine was administered intraperitoneally for seven days. Histopathological and immunohistochemical evaluations were conducted. RESULTS Regarding Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, there was no significant difference among the groups. However, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) levels were significantly different across the groups. G2 had significantly higher NF-κB levels compared to G1 and G3. CONCLUSION Lercanidipine, a third-generation calcium channel blocker, is effective against inflammatory responses induced in spinal cord injury. Further studies are required to determine its capability in preventing apoptosis or improving functional recovery. To the best of our knowledge, this study is the first in the literature to examine the neuroprotective effects of lercanidipine on spinal cord injury.
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Affiliation(s)
- Çağlar Türk
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, İzmir-Türkiye
| | - Sinan Bahadır
- Department of Neurosurgery, Faculty of Medicine, Amasya University, Amasya-Türkiye
| | - Mahmut Camlar
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, İzmir-Türkiye
| | - Çevik Gürel
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir-Türkiye
| | - Aylin Buhur
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir-Türkiye
| | - Gökçe Ceren Kuşçu
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir-Türkiye
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Yüncü ME, Karadag A, Polat S, Camlar M, Bilgin B, Quiñones-Hinojosa A, Middlebrooks EH, Özer F, Tanriover N. Comparison of the Retrosigmoid Suprameatal and Anterior Subtemporal Transpetrosal Approaches After Full Exposure of the Internal Acoustic Meatus. Oper Neurosurg (Hagerstown) 2023; 25:e126-e134. [PMID: 37255294 DOI: 10.1227/ons.0000000000000752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/14/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Surgical approaches to the ventral brainstem and petroclival regions are complex, and standard retrosigmoid and subtemporal approaches are often inadequate. Retrosigmoid suprameatal tubercle (RSMTA) and anterior subtemporal transpetrosal (ASTA) approaches may provide extended surgical exposure with less brain retraction. The objective of this study was to evaluate advantages and disadvantages of RSMTA vs ASTA, and illustrate the surgical corridors and 3-dimensional microsurgical anatomy of the related structures. METHODS Four silicone-injected adult cadaver heads (8 sides) were dissected to evaluate the accessibility of lesions located at the petrous apex, ventral brainstem, and pontomedullary region using ASTA and RSTMA. RESULTS Both ASTA and RSMTA provide access from the petrous apex to the ventral lower pons and pontomedullary junction. A greater extent of safely resected bone was found in ASTA vs RSMTA. ASTA provides a larger surgical view to the ventrolateral midpons, peritrigeminal region, superior neurovascular complex, pontomesencephalic junction, and posterior cavernous sinus. Meanwhile, through cranial nerve V mobilization, RSMTA provides a larger surgical view to the lower half part of the pons, ventrolateral part of the pontomedullary junction, and middle and lower neurovascular structures. CONCLUSION The choice of surgical approach is determined by considering the area where the lesion originates, lesion size, the anatomic structures to which it extends, and evaluation of the area that can be surgically exposed. Our study highlights the differences between these approaches and important surgical anatomic considerations.
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Affiliation(s)
- Mustafa Eren Yüncü
- Department of Neurosurgery, Tepecik Research and Training Hospital, Health Science University, Izmir, Turkey
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Ali Karadag
- Department of Neurosurgery, Tepecik Research and Training Hospital, Health Science University, Izmir, Turkey
| | - Sarper Polat
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Mahmut Camlar
- Department of Neurosurgery, Tepecik Research and Training Hospital, Health Science University, Izmir, Turkey
| | - Berra Bilgin
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
- Department of Neurosurgery, Tokat State Hospital, Tokat, Turkey
| | | | - Erik H Middlebrooks
- Department of Neurosurgery, Mayo Clinic, Jacksonville, Florida, USA
- Department of Radiology, Mayo Clinic, Jacksonville, Florida, USA
| | - Fusun Özer
- Department of Neurosurgery, Tepecik Research and Training Hospital, Health Science University, Izmir, Turkey
| | - Necmettin Tanriover
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
- Department of Neurosurgery, Istanbul University-Cerrahpasa, Cerrahpasa Faculty of Medicine, Istanbul, Turkey
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Kahilogullari G, Bayatli E, Geyik M, Cabuk B, Beton S, Gunaldi O, Tanrıverdi O, Cetinalp NE, Tarkan O, Yıldırım AE, Guner YE, Nehir A, Goksu E, Akyuz M, Isikay İ, Duz B, Celtikci E, Kertmen H, Köktekir E, Camlar M, Bahçecioğlu Mutlu AB, Cansız Ersoz C, Bozdag SC, Berker M, Ceylan S. Endonasal endoscopic approach for sellar metastatic pathologies: a national observation. Br J Neurosurg 2023; 37:206-212. [PMID: 35582922 DOI: 10.1080/02688697.2022.2077310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
PURPOSE Sellar metastases are rare lesions. Recent improvements in diagnosis and treatment strategies have prolonged survival but increased the probability of metastatic tumors. Evaluation with clinical symptomatology and meticulous laboratory examination is crucial. We present our multicenter national study on sellar metastases to evaluate and underline the main clinical, endocrine, and radiological considerations regarding the diagnosis and endonasal endoscopic management of such rare lesions. METHODS A medical literature-based retrospective study was planned across 13 neurosurgical centers in Turkey, where a data survey was conducted to collect information regarding sellar metastases surgically treated using the endoscopic endonasal approach, including clinical presentation, radiographic features, primary tumor origin, histopathological confirmation, time to metastasis, treatment, and patient outcomes. RESULTS Between 2010 and 2020, 54 patients (22 women [40.7%] and 32 men [59.3%]) who underwent surgery with the endonasal endoscopic approach and had pathologically proven sellar metastases (overall incidence, 0.54%) were included. Of the patients, 59.3% had no known malignancy and presented with new-onset symptoms, 79.6% reported headache, 51.9% complained of some degree of visual deficits, and 50% had cranial nerve symptoms. Tissue biopsy was performed in 7.4% of the patients, whereas gross or subtotal resection was achieved in the remaining patients. CONCLUSION To our knowledge, this is the largest series of patients surgically treated with the endonasal endoscopic approach for sellar metastases. For these patients, the treatment focus should be on management modalities for increasing quality of life instead radical treatment options with survival benefit.
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Affiliation(s)
| | - Eyup Bayatli
- Department of Neurosurgery, Ankara University, Ankara, Turkey
| | - Murat Geyik
- Department of Neurosurgery, Gaziantep University, Gaziantep, Turkey
| | - Burak Cabuk
- Department of Neurosurgery, Kocaeli University, Kocaeli, Turkey
| | - Suha Beton
- Department of Otolaryngology, Ankara University, Ankara, Turkey
| | - Omur Gunaldi
- Department of Neurosurgery, Health Ministery University, Cam and Sakura City Hospital, İstanbul, Turkey
| | - Osman Tanrıverdi
- Department of Neurosurgery, Health Ministery University, Cam and Sakura City Hospital, İstanbul, Turkey
| | | | - Ozgur Tarkan
- Department of Otolaryngology, Cukurova University, Adana, Turkey
| | - Ali Erdem Yıldırım
- Department of Neurosurgery, Liv Hospital, İstinye University, Ankara, Turkey
| | - Yahya Efe Guner
- Department of Neurosurgery, Liv Hospital, İstinye University, Ankara, Turkey
| | - Ali Nehir
- Department of Neurosurgery, Gaziantep University, Gaziantep, Turkey
| | - Ethem Goksu
- Department of Neurosurgery, Antalya University, Antalya, Turkey
| | - Mahmut Akyuz
- Department of Neurosurgery, Antalya University, Antalya, Turkey
| | - İlkay Isikay
- Department of Neurosurgery, Hacettepe University, Ankara, Turkey
| | - Bulent Duz
- Department of Neurosurgery, Health Ministery University, Abdulhamit Han Hospital, İstanbul, Turkey
| | - Emrah Celtikci
- Department of Neurosurgery, Gazi University, Ankara, Turkey
| | - Hayri Kertmen
- Department of Neurosurgery, Health Ministery University, Yıldirim Beyazit Hospital, Ankara, Turkey
| | - Ender Köktekir
- Department of Neurosurgery, Selçuk University, Konya, Turkey
| | - Mahmut Camlar
- Department of Neurosurgery, Health Ministery University, Tepecik Hospital, Izmir, Turkey
| | | | | | | | - Mustafa Berker
- Department of Neurosurgery, Hacettepe University, Ankara, Turkey
| | - Savas Ceylan
- Department of Neurosurgery, Kocaeli University, Kocaeli, Turkey
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Karadag A, Camlar M, Turkis OF, Bayramli N, Middlebrooks EH, Tanriover N. Endoscopic Endonasal Approach to the Third Ventricle Using the Surgical Corridor of the Reverse Third Ventriculostomy: Anatomo-Surgical Nuances. J Neurol Surg B Skull Base 2022. [DOI: 10.1055/s-0042-1748630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Abstract
Objective Surgical access to the third ventricle can be achieved through various corridors depending on the location and extent of the lesion; however, traditional transcranial approaches risk damage to multiple critical neural structures.
Methods Endonasal approach similar to corridor of the reverse third ventriculostomy (ERTV) was surgically simulated in eight cadaveric heads. Fiber dissections were additionally performed within the third ventricle along the endoscopic route. Additionally, we present a case of ERTV in a patient with craniopharyngioma extending into the third ventricle.
Results The ERTV allowed adequate intraventricular visualization along the third ventricle. The extracranial step of the surgical corridor included a bony window in the sellar floor, tuberculum sella, and the lower part of the planum sphenoidale. ERTV provided an intraventricular surgical field along the foramen of Monro to expose an area bordered by the fornix anteriorly, thalamus laterally, anterior commissure anterior superiorly, posterior commissure, habenula and pineal gland posteriorly, and aqueduct of Sylvius centered posterior inferiorly.
Conclusion The third ventricle can safely be accessed through ERTV either above or below the pituitary gland. ERTV provides a wide exposure of the third ventricle through the tuber cinereum and offers access to the anterior part as far as the anterior commissure and precommissural part of fornix and the whole length of the posterior part. Endoscopic ERTV may be a suitable alternative to transcranial approaches to access the third ventricle in selected patients.
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Affiliation(s)
- Ali Karadag
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University–Cerrahpasa, Istanbul, Turkey
| | - Mahmut Camlar
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Omer Furkan Turkis
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University–Cerrahpasa, Istanbul, Turkey
- Department of Neurosurgery, Health Science University, Van Research and Training Hospital, Van, Turkey
| | - Nijat Bayramli
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University–Cerrahpasa, Istanbul, Turkey
| | - Erik H. Middlebrooks
- Departments of Neurosurgery and Radiology, Mayo Clinic, Jacksonville, Florida, United States
| | - Necmettin Tanriover
- Microsurgical Neuroanatomy Laboratory, Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University–Cerrahpasa, Istanbul, Turkey
- Department of Neurosurgery, Cerrahpasa Faculty of Medicine, Istanbul University–Cerrahpasa, Istanbul, Turkey
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Karadag A, Camlar M, Turkis OF, Bayramli N, Middlebrooks EH, Tanriover N. Endoscopic Endonasal Approach to the Third Ventricle using the Corridor of the Reverse Third Ventriculostomy: anatomo-surgical nuances. J Neurol Surg B Skull Base 2022; 84:296-306. [PMID: 37187474 PMCID: PMC10171930 DOI: 10.1055/a-1808-1359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 03/18/2022] [Indexed: 10/18/2022] Open
Abstract
Objective: Surgical access to the third ventricle can be achieved through various corridors depending on the location and extent of the lesion; however, traditional transcranial approaches risk damage to multiple critical neural structures.
Methods: Endonasal approach similar to corridor of the reverse third ventriculostomy (ERTV) was surgically simulated in eight cadaveric heads. Fiber dissections were additionally performed within the third ventricle along the endoscopic route. Additionally, we present a case of ERTV in a patient with craniopharyngioma extending into the third ventricle.
Results: The ERTV allowed adequate intraventricular visualization along the third ventricle. The extracranial step of the surgical corridor included a bony window in the sellar floor, tuberculum sella and the lower part of the planum sphenoidale. ERTV provided an intraventricular surgical field along the foramen of Monro to expose an area bordered by the fornix anteriorly, thalamus laterally, anterior commissure anterior superiorly, posterior commissure, habenula and pineal gland posteriorly, and aqueduct of Sylvius centered posterior inferiorly.
Conclusion: The third ventricle can safely be accessed through ERTV either above or below the pituitary gland. ERTV provides a wide exposure of the third ventricle through the tuber cinereum and offers access to the anterior part as far as the anterior commissure and pre-commissural part of fornix and the whole length of the posterior part. Endoscopic ERTV may be a suitable alternative to transcranial approaches to access the third ventricle in selected patients.
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Affiliation(s)
- Ali Karadag
- Neurosurgery, Tepecik Egitim ve Arastirma Hastanesi Kliniklerimiz, Izmir, Turkey
| | - Mahmut Camlar
- Neurosurgery, Tepecik Egitim ve Arastirma Hastanesi Kliniklerimiz, Izmir, Turkey
| | | | - Nijat Bayramli
- Neurosurgery, Tepecik Egitim ve Arastirma Hastanesi Kliniklerimiz, Izmir, Turkey
| | - Erik H Middlebrooks
- Neurological Surgery and Radiology, Mayo Clinic Hospital Jacksonville, Jacksonville, United States
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Turk C, Camlar M, Diniz G, Arslan FD, Oren MM, Ozer F. Effects of Lutein on Brain Damage and Vasospasm in an Experimental Subarachnoid Hemorrhage Model. World Neurosurg 2020; 143:e450-e455. [PMID: 32750510 DOI: 10.1016/j.wneu.2020.07.186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/23/2020] [Accepted: 07/26/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Vasospasm developing after subarachnoid hemorrhage (SAH) is an important cause of mortality and morbidity. Lutein is a carotenoid with antioxidant and anti-inflammatory properties. The aim of present study was to investigate effects of lutein on the basilar artery and nerve tissues. METHODS Wistar rats were randomly divided into 3 groups: control (group 1), SAH (group 2), and SAH treated with lutein (group 3). Lutein was administered for 3 days by means of orogastric gavage. Basilar artery lumen area, wall thickness, serum total antioxidant status, serum total oxidant status, and oxidative stress index were calculated. Histopathologic and immunohistochemical analyses were conducted. RESULTS No statistically significant difference was found between groups in terms of wall thickness; lumen area; and serum total antioxidant status, serum total oxidant status, and oxidative stress index values. A statistically significant difference was found between groups colored with terminal deoxynucleotidyl transferase dUTP nick end labeling (P < 0.005). Post hoc analysis was used to examine the results between groups. Results of group 1 and group 3 were equal (P = 1) and lower than group 2 (P = 0.04 and P = 0.006, respectively). CONCLUSIONS Lutein was found to have a positive effect on width of the basilar artery lumen area. Therefore, positive effects of lutein on vasospasm might be statistically significant if lutein is administered at higher doses. Lutein was found to be effective in preventing brain damage after SAH. To our knowledge, this study is the first in the literature to examine the effect of lutein on vasospasm and brain damage after SAH.
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Affiliation(s)
- Caglar Turk
- Department of Neurosurgery, Artvin State Hospital, Artvin, Turkey.
| | - Mahmut Camlar
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey
| | - Gülden Diniz
- Department of Pathology, Izmir Democracy University, Izmir, Turkey
| | - Fatma Demet Arslan
- Department of Biochemistry, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey
| | - Meryem Merve Oren
- Department of Public Health, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Fusun Ozer
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey
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Karadag A, Senoglu M, Middlebrooks EH, Kinali B, Guvencer M, Icke C, Sayhan S, Karabay N, Camlar M, Olomu OU, Tanriover N. Endoscopic endonasal transclival approach to the ventral brainstem: Radiologic, anatomic feasibility and nuances, surgical limitations and future directions. J Clin Neurosci 2020; 73:264-279. [PMID: 32005412 DOI: 10.1016/j.jocn.2020.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 01/04/2020] [Indexed: 12/25/2022]
Abstract
The endoscopic endonasal transclival approach (EETA) is less invasive than traditional open approaches; however, there is currently limited data on the pre-operative features that may predict success of the EETA. Surgical landmarks and exposure of the EETA and expanded EETA are assessed. We retrospectively measured multiple anatomic features in 154 adult dry skulls, 22 C1 and C2 dry bone vertebrae, and 500 paranasal sinus computed tomography (CT) scans. We also dissected 13 formalin-fixed, silicone-injected adult cadaveric heads. Relevant qualitative and quantitative data were obtained with CT (n = 10) and cadaveric dissection (n = 13). They are expressed as mean (SD), as appropriate and compared with unpaired t tests. Categorical variables were compared with χ2 tests. We determined the prevalence of clival and sphenoid sinus anatomic variations and assessed potential exposure of the craniovertebral region, based on the relative position of the nasal bone tip, posterior point of the hard palate, and their relation to the position of C1 and C2. Depending on anatomic features, EETA should allow visualization of the ventral brainstem. The mean (SD) dimensions of the surgical window for EETA were 43.2 (5.1) × 18.3 (1.1) mm, in the craniocaudad and horizontal dimensions, respectively. The craniocaudad dimension enlarged to 60.2 (4.7) mm with expanded EETA. The EETA allowed satisfactory exposure for odontoid and C1 anterior arch resection (expanded EETA) in all specimens, regardless of the orientation of the palate. The combination of preoperative radiographic assessment and intraoperative considerations allows safe and effective application and facilitate selection of the most appropriate approach.
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Affiliation(s)
- Ali Karadag
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Mehmet Senoglu
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey.
| | - Erik H Middlebrooks
- Division of Neuroradiology, Mayo Clinic, Jacksonville, FL, USA; Department of Neurologic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | - Burak Kinali
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Mustafa Guvencer
- Department of Anatomy, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Cigdem Icke
- Department of Anatomy, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Salih Sayhan
- Department of Anatomy, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Nuri Karabay
- Department of Radiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Mahmut Camlar
- Department of Neurosurgery, Health Science University, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Osarenoma U Olomu
- Department of Otorhinolaryngology/Audiology, Mayo Clinic, Jacksonville, FL, USA
| | - Necmettin Tanriover
- Department of Neurosurgery, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Camlar M, Acikgoz E, Demir K, Uysal A, Ozer F, Selcuki M, Aktug H. Effects of Glycogen Synthase Kinase Inhibitor on Glioblastoma Multiforme Cell Line via Apoptosis and Cell Signaling Pathways. Turk Neurosurg 2019; 29:513-521. [PMID: 30984989 DOI: 10.5137/1019-5149.jtn.23987-18.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM To investigate the apoptotic and molecular effects of glycogen synthase kinase-3 (GSK-3) in glioblastoma multiforme (GBM). MATERIAL AND METHODS Human primary glioblastoma cell line (U-87 MG) and the human fetal glial cell line (SVGp12) were used. The cells were exposed to the different doses of GSK inhibitor for 24, 48 and 72 hours. Induction of apoptosis was assessed by DNA fragmentation (TUNEL) assay. EGFR and NF-kB expression was evaluated by immunofluorescence analyses. RESULTS GSK-3 inhibitor IX induced cytotoxicity and apoptosis in dose-dependent manner in GBM cells. Our results indicated that GSK-3 inhibitor IX induces apoptosis, resulting in a significant decrease in the expression of NF-kB and EGF. CONCLUSION Inhibition through GSK-3 has been found promising in creating therapeutic management of GBM cells. Proliferation, differentiation, cell cycle regulation, and apoptosis are mechanisms that must be interpreted as a whole. Components associated with EGFR, NF-kB, and apoptosis affect the mechanism solely and collectively. Our collective data suggest that GSK-3 inhibitor IX inhibited cellular proliferation and induced apoptotic events by modulating EGFR and NF-kB expression in GBM cells. GSK-3 inhibition holds promise for the development of new approaches for the therapeutic management of GBM cells.
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Affiliation(s)
- Mahmut Camlar
- University of Health Sciences, Tepecik Training and Research Hospital, Department of Neurosurgery, Izmir, Turkey
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Camlar M, Turk C, Oltulu F, Oren M, Buhur A, Yigitturk G, Ozer F, Gazioglu N. How Safe is the Use of Intrathecal Fluorescein? An Experimental Study. Turk Neurosurg 2019; 29:549-554. [PMID: 30806476 DOI: 10.5137/1019-5149.jtn.24085-18.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM To investigate the effects of fluorescein-sodium on neural tissues. MATERIAL AND METHODS Twenty-one Wistar rats were randomly divided into three experimental groups: control (group 1) and fluorescein-sodium groups with different doses (groups 2 and 3). In the control group, craniectomy following with durotomy was performed with the help of a loupe microscope, and a dry sponge was overlayed to the brain tissue. In the study groups, the open dura was covered with a sponge soaked with 0.02 mg (group 2) and with 0.2 mg (group 3) fluorescein sodium following craniectomy. Three weeks postoperatively, rats were sacrificed for the histopathologic evaluations. RESULTS Fluorescein-induced apoptosis occurs in a dose-dependent manner in rats' neurons. It was determined that neuron and neuroglial cell TUNEL staining was statistically different among the three groups (p < 0.001). Our results indicated that fluorescein induces apoptosis, resulting in increased nuclear factor kappa beta (NF-kβ) expression in a dose-dependent manner. CONCLUSION Fluorescein sodium is used frequently during surgery for CSF fistulas. However, information in the literature about its safety is insufficient. Our study holds promise for the development of new studies on the reliability of this agent.
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Affiliation(s)
- Mahmut Camlar
- University of Health Sciences, Tepecik Training and Research Hospital, Department of Neurosurgery, Izmir, Turkey
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Acikgoz E, Güler G, Camlar M, Oktem G, Aktug H. Glycogen synthase kinase-3 inhibition in glioblastoma multiforme cells induces apoptosis, cell cycle arrest and changing biomolecular structure. Spectrochim Acta A Mol Biomol Spectrosc 2019; 209:150-164. [PMID: 30388586 DOI: 10.1016/j.saa.2018.10.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/13/2018] [Accepted: 10/21/2018] [Indexed: 06/08/2023]
Abstract
Glioblastoma multiforme (GBM) is the most malignant and aggressive primary human brain tumors. The regulatory pathways of apoptosis are altered in GBMs, leading to a survival advantage of the tumor cells. Thus, identification of target molecules, which are effective in triggering of the cell death mechanisms in GBM, is an essential strategy for therapeutic purposes. Glycogen synthase kinase-3 (GSK-3) plays an important role in apoptosis, proliferation and cell cycle. This study focused on the effect of GSK-3 inhibitor IX in the GBM cells. Apoptosis induction was determined by Annexin-V assay, multicaspase activity and immunofluorescence analyses. Concentration-dependent effects of GSK-3 inhibitor IX on the cell cycle were also evaluated. Moreover, the effect of GSK inhibitor on the cellular biomolecules was assessed by using ATR-FTIR spectroscopy. Our assay results indicated that GSK-3 inhibitor IX induces apoptosis, resulting in a significant increase in the expression of caspase-3 and caspase-8 proteins. Cell cycle analyses revealed that GSK-3 inhibitor IX leads to dose-dependent G2/M-phase cell cycle arrest. Based on the FTIR data, treatment of GBM cells causes dysregulation in the carbohydrate metabolism and induces apoptotic cell death which was characterized by the spectral alterations in nucleic acids, an increment in the lipid amount with disordering state and compositional changes in the cellular proteins. These findings suggest that GSK-3 inhibitor IX exhibits anti-cancer effects by inducing apoptosis and changing biomolecular structure of membrane lipids, carbohydrates, nucleic acids and proteins, and thus, may be further evaluated as a potential effective candidate agent for the GBM combination therapies.
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Affiliation(s)
- Eda Acikgoz
- Department of Histology and Embryology, Faculty of Medicine, Ege University, 35100 Izmir, Turkey; Department of Histology and Embryology, Faculty of Medicine, Yuzuncu Yil University, 65080 Van, Turkey.
| | - Günnur Güler
- Center for Drug Research & Development and Pharmacokinetic Applications (ARGEFAR), Ege University, 35100 Izmir, Turkey.
| | - Mahmut Camlar
- Department of Neurosurgery, Sağlık Bilimleri University Izmir Tepecik Education and Research Hospital, Izmir 35100, Turkey
| | - Gulperi Oktem
- Department of Histology and Embryology, Faculty of Medicine, Ege University, 35100 Izmir, Turkey
| | - Huseyin Aktug
- Department of Histology and Embryology, Faculty of Medicine, Ege University, 35100 Izmir, Turkey
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11
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Camlar M, Karadag A, Oztekin O, Ozer F. Superficial Siderosis of the Central Nervous System Due to Recurrent Surgeries of the Thoracic Spine: A Rare Case. World Neurosurg 2018; 119:384-388. [PMID: 30165218 DOI: 10.1016/j.wneu.2018.08.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/16/2018] [Accepted: 08/17/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Superficial siderosis (SS) of the central nervous system is a rare condition caused by hemosiderin deposition in the subpial layers of the brain and spinal cord. Surgical complications are the primary factor for occurrence of secondary SS. We present a case of SS with an identified bleeding origin in the thoracic spine. CASE DESCRIPTION A 58-year-old female patient experienced 9 months of continuous progressive dizziness, difficulty with mobilization, drop attacks, and lack of hearing. The patient also had an extensive history of thoracic spinal surgeries. She came to the hospital with gait imbalance. Gradient echo (GE) magnetic resonance imaging (MRI) confirmed hemosiderin deposition along the cerebellar folia and vermis. GE sequences are preferable in this diagnosis, because of higher sensitivity, and for detecting characteristic T2 hypointensity. The dural defect was repaired with an artificial dural patch in thoracal operation area. Clinical findings, imaging studies, intraoperative findings, and literature information are presented. CONCLUSIONS Performance of an open neurosurgical procedure to repair a dural defect in the presence of MRI confirmed that superficial siderosis is an optimal method and a crucial step to ensure the safe resolution of the condition and to break the circle of emergency admissions of a patient with a dural defect and a history of multiple spinal surgeries.
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Affiliation(s)
- Mahmut Camlar
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey.
| | - Ali Karadag
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey
| | - Ozgur Oztekin
- Department of Radiology, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey
| | - Fusun Ozer
- Department of Neurosurgery, Tepecik Research and Training Hospital, University of Health Sciences, Izmir, Turkey
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12
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Yakut N, Soysal A, Kepenekli Kadayifci E, Dalgic N, Yılmaz Ciftdogan D, Karaaslan A, Akkoc G, Ocal Demir S, Cagan E, Celikboya E, Kanik A, Dagcinar A, Yilmaz A, Ozer F, Camlar M, Turel O, Bakir M. Ventriculoperitoneal shunt infections and re-infections in children: a multicentre retrospective study. Br J Neurosurg 2018; 32:196-200. [DOI: 10.1080/02688697.2018.1467373] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Ahmet Soysal
- Marmara University School of Medicine, Istanbul, Turkey
| | | | - Nazan Dalgic
- Şişli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | | | | | - Gulsen Akkoc
- Marmara University School of Medicine, Istanbul, Turkey
| | | | - Eren Cagan
- Bursa Şevket Yılmaz Training and Research Hospital, Bursa, Turkey
| | - Ezgi Celikboya
- Şişli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Ali Kanik
- İzmir Tepecik Training and Research Hospital, Izmir, Turkey
| | | | - Adem Yilmaz
- Şişli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Fusun Ozer
- İzmir Tepecik Training and Research Hospital, Izmir, Turkey
| | - Mahmut Camlar
- İzmir Tepecik Training and Research Hospital, Izmir, Turkey
| | - Ozden Turel
- Bezmialem University School Of Medicine, Istanbul, Turkey
| | - Mustafa Bakir
- Marmara University School of Medicine, Istanbul, Turkey
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13
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Kilic TY, Aksay E, Atilla OD, Sezik S, Camlar M. The diagnostic value of complete blood count parameters in patients with subarachnoid hemorrhage. Turk J Emerg Med 2018; 17:128-131. [PMID: 29464214 PMCID: PMC5812913 DOI: 10.1016/j.tjem.2017.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/21/2017] [Accepted: 07/18/2017] [Indexed: 11/17/2022] Open
Abstract
Objectives Diagnosis of subarachnoid hemorrhage (SAH) in patients presenting with headache is challenging and there has been any biomarker studied for excluding of SAH in those patients. We aim to determine the sensitivity of leukocytosis or left shift to exclude the diagnosis of SAH in ED patients presenting with headache. Method Adult patients with headache who received a computed tomography (CT) with the diagnosis of SAH and had a complete blood count (CBC) represent the case group, headache patients with normal CT and had a CBC represent the control group. The white blood cell (WBC) count and percentage of polymorphonuclear cells (PMNs%) taken during admission and within the first 6 and 12 h of admission were recorded. Results A hundred ninety seven patients with SAH and 197 patients without SAH were enrolled in to study. Sensitivity, specificity, NPV and PPV of leukocytosis or increase in PMNs% (left shift) in the diagnosis of SAH was 89.8% (84.5-93.5, 95% CI), 46.7% (39.6-53.9, 95% CI), 82.1% (73.5-88.4, 95% CI) and 62.8% (56.8-68.4, 95% CI) respectively on initial emergency department (ED) admission. Conclusion CBC should be considered as a noninvasive test for the exclusion of SAH in ED patients with 6 h observation.
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Affiliation(s)
- Turgay Yılmaz Kilic
- Izmir Tepecik Research and Educational Hospital, Department of Emergency Medicine, Izmir, Turkey
- Corresponding author. Department of Emergency Medicine, Tepecik Training and Research Hospital, Gaziler Caddesi, Yenisehir, 35120, Izmir, Turkey.Department of Emergency MedicineTepecik Training and Research HospitalGaziler CaddesiYenisehirIzmir35120Turkey
| | - Ersin Aksay
- Dokuz Eylul University Hospital, Department of Emergency Medicine, Izmir, Turkey
| | - Ozge Duman Atilla
- Izmir Tepecik Research and Educational Hospital, Department of Emergency Medicine, Izmir, Turkey
| | - Savas Sezik
- Izmir Tepecik Research and Educational Hospital, Department of Emergency Medicine, Izmir, Turkey
| | - Mahmut Camlar
- Izmir Tepecik Research and Educational Hospital, Department of Neurosurgery, Izmir, Turkey
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14
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Durmaz O, Karadag A, Ozer FD, Camlar M, Middlebrooks EH, Bozkurt B, Senoglu M. A Rare History: an Intracranial Nail Present for Over a Half-Century. Acta Medica (Hradec Kralove) 2018; 60:124-126. [PMID: 29439759 DOI: 10.14712/18059694.2018.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We present a rare case of a patient with a persistent headache for many years found to have an intracranial nail present for nearly 65 years. The nail was found entering approximately 1 cm from the midline on the left side, passing below the superior sagittal sinus, with the tip 1.5 mm right of the frontal horn of the lateral ventricle. Treatment strategies designed to optimize outcome for intracranial foreign bodies and possible complications are discussed in this report. We also discuss the decision for surgical intervention for foreign bodies and the relevance of position of the foreign body.
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Affiliation(s)
- Ozkan Durmaz
- Kars Harakani Public Hospital, Department of Neurosurgery, Kars, Turkey
| | - Ali Karadag
- Tepecik Research and Training Hospital, Department of Neurosurgery, Izmir, Turkey.
| | - Fusun Demircivi Ozer
- Tepecik Research and Training Hospital, Department of Neurosurgery, Izmir, Turkey
| | - Mahmut Camlar
- Tepecik Research and Training Hospital, Department of Neurosurgery, Izmir, Turkey
| | | | - Baran Bozkurt
- University of Minnesota, Department of Neurosurgery, Minneapolis, MN, USA
| | - Mehmet Senoglu
- Tepecik Research and Training Hospital, Department of Neurosurgery, Izmir, Turkey
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15
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Yakut N, Soysal A, Kadayifci EK, Dalgic N, Ciftdogan DY, Karaaslan A, Cagan E, Celikboya E, Kanik A, Dagcinar A, Yilmaz A, Ozer F, Camlar M, Turel O, Bakir M. Persistant High Cerebrospinal Fluid Protein May Be a Risk Factor for Ventriculoperitoneal Shunt Reinfection in Children. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Nurhayat Yakut
- Pediatric Infectious Diseases, Marmara University Medical Faculty, Istanbul, Turkey
| | - Ahmet Soysal
- Pediatric Infectious Diseases, Marmara University Medical Faculty, Istanbul, Turkey
| | | | - Nazan Dalgic
- Sisli Hamidiye Etfal Research and Training Hospital, Istanbul, Turkey
| | | | - Ayse Karaaslan
- Pediatric Infectious Diseases, TC. Sağlık Bakanlığı Dr. Lütfi Kırdar Kartal EA Hastanesi, Istanbul, Turkey
| | - Eren Cagan
- Sevket Yilmaz Research and Training Hospital, Bursa, Turkey
| | - Ezgi Celikboya
- Sisli Hamidiye Etfal Research and Training Hospital, Istanbul, Turkey
| | - Ali Kanik
- Tepecik Research and Training Hospital, Izmir, Turkey
| | - Adnan Dagcinar
- Neurosurgery, Marmara University School of Medicine, Istanbul, Turkey
| | - Adem Yilmaz
- Neurosurgery, Sisli Hamidiye Etfal Research and Training Hospital, Istanbul, Turkey
| | - Fusun Ozer
- Neurosurgery, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Mahmut Camlar
- Neurosurgery, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Ozden Turel
- Pediatric Infectious Diseases, Bezmialem University School of Medicine, Istanbul, Turkey
| | - Mustafa Bakir
- Pediatric Allergy and Immunology, Marmara University School of Medicine, Istanbul, Turkey
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16
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Akcay E, Ersahin Y, Ozer F, Duransoy YK, Camlar M, Atci I, Yagci A, Ozer O. Neurotoxic effect of povidone-iodine on the rat spine using a laminectomy-durotomy model. Childs Nerv Syst 2012; 28:2071-5. [PMID: 22885709 DOI: 10.1007/s00381-012-1885-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Accepted: 07/31/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The efficacy and safety of povidone-iodine in wound dressing and irrigation of some operative cavities were established by many in vitro and in vivo experimental reports and clinical series. However, its use in defective tissue in neural structures has not been confirmed yet. The aim of the present study was to histopathologically investigate its effect on neural tissues when applied on the upper side of defective dura. METHODS Wistar rats were randomly divided into two experimental groups: control and povidone-iodine groups. In the control group, durotomy was performed following laminectomy, and the spinal cord was covered with a dry sponge. In the study group, the same procedure was performed, but open duras were covered with a sponge that had been wetted with 0.1 % povidone-iodine solution. Three weeks after surgery, all experimental animals were sacrificed, and histopathological evaluations were conducted. RESULTS Myelin changes were absent or minimal in all cases of the control group but were present as markedly increased myelin degeneration in nearly all cases in the study group. Axonal degeneration and hypoxic neuronal damage were absent in the control group, whereas they were marked in half of the study group. No statistically significant differences were established in Schwann cell proliferation, venous congestion, and lymphocytic proliferation between the two groups. CONCLUSIONS Based on the present study, 0.1 % povidone-iodine solution cannot be recommended for wound dressing for neural structures such as myelomeningocele cases because of possible damage to underlying neural tissues.
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Affiliation(s)
- Emrah Akcay
- Department of Neurosurgery, Anamur State Hospital, Mersin, Turkey.
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17
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Camlar M, Ersahin Y, Ozer FD, Sen F, Orman M. Can using a peel-away sheath in shunt implantation prevent ventricular catheter obstruction? Childs Nerv Syst 2011; 27:295-8. [PMID: 20625740 DOI: 10.1007/s00381-010-1226-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Accepted: 07/01/2010] [Indexed: 10/19/2022]
Abstract
PURPOSE Shunt obstruction is the most common shunt complication. In 2003, Kehler et al. used peel-away sheath while implanting the ventricular catheter in 20 patients. They found less revision rate in the peel-away sheath group. We aimed to test the efficacy of this technique in cadavers. METHODS We used 100 fresh brains obtained from medicolegal autopsies. Posterior parietal and frontal approaches were used to puncture the lateral ventricle in each cerebral hemisphere. The ventricle is punctured with a peel-away sheath system. After the ventricle is reached, the mandarin is retracted and the ventricular catheter is introduced through the opening. The ventricular catheter was removed from the ventricle, the opening at the tip of the ventricular catheter was checked out for obstruction, and the number of patent and plugged openings was recorded. This procedure was repeated four times for each location with and without using peel-away sheath. The control group consisted of the procedures done without using peel-away sheath. RESULTS The number of the plugged openings in the peel-away sheath group was significantly smaller than the control group. There was no significant difference between the two groups in terms of gender and left and right cerebral hemispheres. The obstruction rate was significantly lower in the posterior parietal approach. Pearson's correlation showed that increasing age was associated with less obstruction rate. CONCLUSION Peel-away sheath decreases the number of plugged openings of the ventricular catheter. A clinical cooperative study is needed to prove that a peel-away sheath should be included in the ventricular shunt systems in the market.
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Affiliation(s)
- Mahmut Camlar
- Department of Neurosurgery, Izmir Education and Research Hospital, Izmir, Turkey
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18
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Yurt A, Avci M, Selçuki M, Ozer F, Camlar M, Uçar K, Taşli F, Altinörs N. Multiple cerebral hydatid cysts. Clin Neurol Neurosurg 2007; 109:821-6. [PMID: 17765392 DOI: 10.1016/j.clineuro.2007.07.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Revised: 07/12/2007] [Accepted: 07/16/2007] [Indexed: 11/22/2022]
Abstract
A case of 19 years old female patient with 24 large primary cerebral hydatid cysts, in different localisations is presented. Cysts were removed unruptured by five separate operations in 6 months. The patient was observed to be in good health 1 year after the last operation. This case is the first case presented that contains such high number of cysts to our knowledge. The importance of MRI examination in localizing the cysts and designing the operative plan is emphasized. Interestingly, albendazole, which is an antiparasitic drug, was reported to be ineffective by infectious disease department of our hospital, because of large diameter of the cysts, in this case.
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Affiliation(s)
- Alaattin Yurt
- Department of Neurosurgery, Izmir Training and Research Hospital, Izmir, Turkey.
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