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Yardim A, Kanat A, Karadag MK, Aydin MD, Gel MS, Daltaban IS, Demirtas R. New histopathological evidence for the relationship between hydromyelia and hydrocephalus following subarachnoid hemorrhage: An experimental study. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2023; 14:253-258. [PMID: 37860031 PMCID: PMC10583804 DOI: 10.4103/jcvjs.jcvjs_67_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 07/12/2023] [Indexed: 10/21/2023] Open
Abstract
Objectives Subarachnoid hemorrhage (SAH) is a serious pathology with a high death and morbidity rate. There can be a relationship between hydromyelia and hydrocephalus following SAH; however, this subject has not been well investigated. Materials and Methods Twenty-four rabbits (3 ± 0.4 years old; 4.4 ± 0.5 kg) were used in this study. Five of them were used as the control, and five of them as the SHAM group. The remaining animals (n = 14) had been used as the study group. The central canal volume values at the C1-C2 levels, ependymal cells, numbers of central canal surfaces, and Evans index values of the lateral ventricles were assessed and compared. Results Choroid plexus edema and increased water vesicles were observed in animals with central canal dilatation. The Evans index of the brain ventricles was 0.33 ± 0.05, the mean volume of the central canal was 1.431 ± 0.043 mm3, and ependymal cells density was 5.420 ± 879/mm2 in the control group animals (n = 5); 0.35 ± 0.17, 1.190 ± 0.114 mm3, and 4.135 ± 612/mm2 in the SHAM group animals (n = 5); and 0.44 ± 0.68, 1.814 ± 0.139 mm3, and 2.512 ± 11/mm2 in the study group (n = 14). The relationship between the Evans index values, the central canal volumes, and degenerated ependymal cell densities was statistically significant (P < 0.05). Conclusions This study showed that hydromyelia occurs following SAH-induced experimental hydrocephalus. Desquamation of ependymal cells and increased cerebrospinal fluid secretion may be responsible factors in the development of hydromyelia.
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Affiliation(s)
- Ahmet Yardim
- Department of Neurosurgery, Medical Faculty, Aksaray University, Aksaray, Turkey
| | - Ayhan Kanat
- Department of Neurosurgery, Medical Faculty, Recep Tayyip Erdoğan University, Rize, Turkey
| | | | - Mehmet Dumlu Aydin
- Department of Neurosurgery, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Mehmet Selim Gel
- Department of Neurosurgery, Kanuni Research and Training Hospital, Trabzon, Turkey
| | | | - Rabia Demirtas
- Department of Pathology, Medical Faculty, Ataturk University, Erzurum, Turkey
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Assessment relationship between the femoral artery vasospasm and dorsal root ganglion cell degeneration in spinal subarachnoid hemorrhage: an experimental study. Spinal Cord 2022; 60:404-407. [PMID: 35197574 DOI: 10.1038/s41393-022-00778-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 11/08/2022]
Abstract
STUDY DESIGN Animal proof of principle study. OBJECTIVES To investigate neurodegeneration in rabbit L4-dorsal root ganglion (DRG) cells by creating experimental spinal subarachnoid hemorrhage (SAH), we aimed to show the neuronal pathway between L4-DRG and femoral artery. SETTING Ataturk University, Medical Faculty, Animal Laboratory, Erzurum, Turkey. METHODS This study was designed on 20 rabbits, which were randomly divided into three groups: Spinal SAH (n = 8), SHAM (n = 6), and control (n = 6) groups. Animals were followed for 20 days and then killed. Vasospasm index values of the femoral artery and neuron density of L4-DRG were analyzed. RESULTS The number of degenerated neurons in DRG was higher in the spinal SAH than the control and SHAM groups (p < 0.001). But, the difference between the control group and the SHAM group was not significant. Normal neuron densities were significantly lower in the spine SAH group compared to the SHAM and the control groups. There was a statistically significant increase in vasospasm index values of the spinal SAH group compared to the other two groups (p < 0.001). CONCLUSIONS Decreased volume of the femoral artery lumen was showed in animals with spinal SAH compared with control and SHAM groups. Increased degeneration of the L4 dorsal root ganglion in animals with spinal SAH was also demonstrated. Our findings might shed light on the planning of future experimental studies and evaluating the clinical relevance of such studies.
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Kayaci S, Aydin MD, Ozoner B, Cakir T, Bas O, Sipal S. Relationship between subarachnoid and central canal hemorrhage and spasticity: A first experimental study. J Spinal Cord Med 2021; 44:748-756. [PMID: 31647747 PMCID: PMC8477948 DOI: 10.1080/10790268.2019.1669956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Objective: Spastic disorders are considered as important cerebral complications of subarachnoid hemorrhage (SAH). However, there has been no research concerning the pathophysiological mechanism of its link with the spinal cord. The present study aimed to assess the relationship between the development of spasticity and neuronal degeneration after SAH and increase in spinal cord pressure after central canal hemorrhage (CCH).Participants: Twenty-three rabbits were included.Outcome measures: Of all rabbits, 5, 5, and 13 were allocated in the control, SHAM and study groups, respectively. Moreover, 1 cc of saline and 1 cc of autologous arterial blood were injected into the cisterna magna of the SHAM and study groups, respectively. The Muscle spasticity tension values (MSTVs) were determined according to the modified Ashworth scale. Degenerated neuron densities (DND) in the gray matter (GM) of each animal's spinal cord were stereologically calculated.Results: The average MSTV of each group was as follows: control group (n = 5) 2; SHAM group (n = 5) 3-5; and study group (n = 13) 8-10. The DND values of the spinal cord of each group were as follows: control group, 2 ± 1/mm3; SHAM group, 12 ± 3/mm3; and study group, 34 ± 9/mm3. Results showed an important linear relationship between the MSTVs and the DND of the spinal cord (P < 0.001).Conclusion: Spasticity may be attributed to other causes such as ischemic neurodegenerative process that develops after spinal SAH and the de-synchronization of the flexor-extensor muscles due to the spontaneous discharge of interneuronal structures, which are crossed within the spinal cord owing to the build-up of pressure after CCH.
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Affiliation(s)
- Selim Kayaci
- Department of Neurosurgery Medical, Faculty of Erzincan Binali Yıldırım University, Erzincan, Turkey,Correspondence to: Selim Kayaci, Department of Neurosurgery Medical, Faculty of Erzincan Binali Yıldırım University, 24100 Erzincan, Turkey; Ph: 0446 212 22 22.
| | - Mehmet Dumlu Aydin
- Department of Neurosurgery, Medical Faculty of Ataturk University, Erzurum, Turkey,Mehmet Dumlu Aydin, Department of Neurosurgery, Medical Faculty of Ataturk University, Erzurum, Turkey.
| | - Baris Ozoner
- Department of Neurosurgery Medical, Faculty of Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Tayfun Cakir
- Department of Neurosurgery Medical, Faculty of Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Orhan Bas
- Department of Anatomy, Medical Faculty of Ordu University, Ordu, Turkey
| | - Sare Sipal
- Department of Pathology, Medical Faculty of Ataturk University, Erzurum, Turkey
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Caglar O, Firinci B, Aydin ME, Arslan R, Kanat A, Demirci T, Aydın MD, Karadeniz E, Yigiter M, Akca N. First emerging evidence of the relationship between Onuf's nucleus degeneration and reduced sperm number following spinal subarachnoid haemorrhage: Experimental study. Andrologia 2021; 53:e14030. [PMID: 33755239 DOI: 10.1111/and.14030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 12/25/2022] Open
Abstract
Lumbosacral pathologies can lead to infertility. Onuf's nucleus changes in these pathologies may have a role in low sperm number. This study aims to investigate the relationship between Onuf's nucleus degeneration and sperm number following spinal subarachnoid haemorrhage. 22 rabbits were used. They were divided into three groups; five of them were used as the control (GI), five as the SHAM (GII) and twelve as the study groups (GIII). The study group received 0.7 ccs autologous blood into the spinal subarachnoid space at the T12-L1 level. After two weeks, all animals were decapitated, and S1-S3 laminectomy was done. Neurodegenerative changes of Onuf's nucleus, pudendal ganglia (S3) following two weeks after spinal SAH, were examined; sperm numbers were calculated. Degenerated neuron density of the Onuf's nucleus (n/mm3 ), the pudendal ganglia (S3) (n/mm3 ) and mean sperm numbers were calculated as 5 ± 2, 8 ± 3/mm3 and 98.345 ± 12.776/mm3 in the control (GI), 20 ± 5/mm3 , 243 ± 66/mm3 and 91.841 ± 9.654/mm3 in the SHAM (GII), 143 ± 39/mm3 , 2,350 ± 320/mm3 and 68.549 ± 5.540/mm3 in the study group (GIII). In conclusion, there were statistically significant differences between groups. Onuf's nucleus may be responsible for decreased sperm number following spinal SAH.
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Affiliation(s)
- Ozgur Caglar
- Department of Pediatric Surgery, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Binali Firinci
- Department of Pediatric Surgery, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Muhammed Enes Aydin
- Department of Anesthesiology, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Remzi Arslan
- Department of Pathology, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Ayhan Kanat
- Department of Neurosurgery, Medical Faculty of Recep Tayyip Erdogan University, Rize, Turkey
| | - Tuba Demirci
- Department of Histology, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Mehmet Dumlu Aydın
- Department of Neurosurgery, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Erdem Karadeniz
- Department of General Surgery, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Murat Yigiter
- Department of Pediatric Surgery, Medical Faculty of Ataturk University, Erzurum, Turkey
| | - Nezih Akca
- Department of Urology, Medical Faculty of Recep Tayyip Erdogan University, Rize, Turkey
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New Histopathologic Evidence for the Parasympathetic Innervation of the Kidney and the Mechanism of Hypertension Following Subarachnoid Hemorrhage. J Craniofac Surg 2020; 31:865-870. [DOI: 10.1097/scs.0000000000006041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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The Effect of Neuroscientists on the Studies of Autonomic Nervous System Dysfunction Following Experimental Subarachnoid Hemorrhage. J Craniofac Surg 2019; 30:2184-2188. [DOI: 10.1097/scs.0000000000005763] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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Predeterminative role of Onuf's nucleus ischemia on mesenteric artery vasospasm in spinal subarachnoid hemorrhage: A preliminary experimental study. Asian J Surg 2019; 42:797-804. [DOI: 10.1016/j.asjsur.2018.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/23/2018] [Accepted: 12/07/2018] [Indexed: 12/11/2022] Open
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Caglar O, Firinci B, Aydin MD, Karadeniz E, Ahiskalioglu A, Sipal SA, Yigiter M, Bedii Salman A. Disruption of the network between Onuf's nucleus and myenteric ganglia, and developing Hirschsprung-like disease following spinal subarachnoid haemorrhage: an experimental study. Int J Neurosci 2019; 129:1076-1084. [PMID: 31215289 DOI: 10.1080/00207454.2019.1634069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose/Aim of the study: Auerbach/Meissner network of lower abdominopelvic organs managed by parasympathetic nerve fibres of lumbosacral roots arising from Onuf's nucleus located in conus medullaris. Aim of this study is to evaluate if there is any relationship between Onuf's nucleus ischemia and Auerbach/Meissner network degeneration following spinal subarachnoid haemorrhage (SAH). Materials and Methods: Study was conducted on 24 male rabbits included control (Group I, n = 5), serum saline-SHAM (Group II, n = 5), and spinal SAH (Group III, n = 14) groups. Spinal SAH performed by injecting homologous blood into subarachnoid space at Th12-L4 level and followed three weeks. Live and degenerated neuron densities of Onuf's nucleus, Auerbach and Meissner ganglia (n/mm3) were determined by Stereological methods. Results: The mean degenerated neuron density of Onuf's nucleus was significantly higher in Group III than in Groups I-II (152 ± 26, 2 ± 1 and 5 ± 2/mm3 respectively, p < 0.005). The degenerated neuron density of Auerbach's ganglia was significantly higher in Group III than in Groups I-II (365 ± 112, 3 ± 1 and 9 ± 3/mm3 respectively, p < 0.005). The degenerated neuron density of Meissner's ganglia was significantly higher in Group III than in Groups I-II (413 ± 132, 2 ± 1 and 11 ± 4/mm3 respectively, p < 0.005). Conclusions: Onuf's nucleus pathologies should be considered as Auerbach/Meissner ganglia degeneration and also related Hirschsprung-like diseases in the future.
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Affiliation(s)
- Ozgur Caglar
- Medical Faculty, Department of Pediatric Surgery, Ataturk University , Erzurum , Turkey
| | - Binali Firinci
- Medical Faculty, Department of Pediatric Surgery, Ataturk University , Erzurum , Turkey
| | - Mehmet Dumlu Aydin
- Medical Faculty, Department of Neurosurgery, Ataturk University , Erzurum , Turkey
| | - Erdem Karadeniz
- Medical Faculty, Department of General Surgery, Ataturk University , Erzurum , Turkey
| | - Ali Ahiskalioglu
- Medical Faculty, Department of Anesthesiology and Reanimation, Ataturk University , Erzurum , Turkey
| | - Sare Altas Sipal
- Medical Faculty, Department of Pathology, Ataturk University , Erzurum , Turkey
| | - Murat Yigiter
- Medical Faculty, Department of Pediatric Surgery, Ataturk University , Erzurum , Turkey
| | - Ahmet Bedii Salman
- Medical Faculty, Department of Pediatric Surgery, Ataturk University , Erzurum , Turkey
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Brachial Artery Vasospasm Caused by Cervical Dorsal Root Ganglion Degeneration After Subarachnoid Hemorrhage: An Experimental Study. World Neurosurg 2019; 126:e895-e900. [DOI: 10.1016/j.wneu.2019.03.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/27/2022]
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Unpublished Neuropathologic Mechanism Behind the Muscle Weakness/Paralysis and Gait Disturbances Induced by Sciatic Nerve Degeneration After Spinal Subarachnoid Hemorrhage: An Experimental Study. World Neurosurg 2018; 119:e1029-e1034. [DOI: 10.1016/j.wneu.2018.08.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 12/19/2022]
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Nontraumatic Intradiploic Epidermoid Cyst and Older Age: Association or Causality? J Craniofac Surg 2018; 29:e143-e146. [DOI: 10.1097/scs.0000000000003897] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Central Sagittal Angle of the Sacrum as a New Risk Factor for Patients with Persistent Low Back Pain after Caesarean Section. Asian Spine J 2017; 11:726-732. [PMID: 29093782 PMCID: PMC5662855 DOI: 10.4184/asj.2017.11.5.726] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/17/2017] [Accepted: 03/12/2017] [Indexed: 12/16/2022] Open
Abstract
Study Design Retrospective. Purpose This study investigated the possible association of persistent low back pain (LBP) with caesarean section (CS) under spinal anesthesia. Overview of Literature Many women suffer from LBP after CS, which is commonly performed under spinal anesthesia. However, this type of LBP is poorly understood, and there is poor consensus regarding increased risk after spinal anesthesia. Methods We examined two groups of patients who underwent cesarean delivery under spinal anesthesia. Group I included patients who presented to a neurosurgical clinic complaining of LBP for at least 6 months. Group II was a control group with patients without LBP. We analyzed clinical and sagittal angle parameters, including age, body mass index, parity, central sagittal angle of the sacrum (CSAS), and sacral slope (SS). Results Fifty-three patients participated in this study: 23 (43.1%) in Group I and 30 (56.9%) in Group II. Non-parametric Mann–Whitney U-tests showed that age, parity, and CSAS significantly differed between the two groups at 6 months. Conclusions Age, parity, and CSAS appear to be associated with increased risk for LBP after CS under spinal anesthesia. Future prospective studies on this subject may help validate our results.
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Aydın MD, Kanat A, Aydın N, Kantarci A, Ayvaz MA, Rakici H, Yolas C, Kepoglu U, Demirci E. New Evidence for Causal Central Mechanism of Hyperglycemia in Subarachnoid Hemorrhage Secondary to Ischemic Degenerative Disruption of Circuitry Among Insular Cortex, Nodose Ganglion, and Pancreas: Experimental Study. World Neurosurg 2017; 106:570-577. [DOI: 10.1016/j.wneu.2017.06.176] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 06/29/2017] [Accepted: 06/30/2017] [Indexed: 12/26/2022]
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Kanat A, Aydin MD, Bayram E, Kazdal H, Aydin N, Omeroglu M, Altinkaynak K, Kabalar ME, Yolas C, Ozturk C, Kepoglu U, Calik M. A New Determinant of Poor Outcome After Spontaneous Subarachnoid Hemorrhage: Blood pH and the Disruption of Glossopharyngeal Nerve–Carotid Body Network: First Experimental Study. World Neurosurg 2017; 104:330-338. [DOI: 10.1016/j.wneu.2017.04.105] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/16/2017] [Accepted: 04/17/2017] [Indexed: 12/16/2022]
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Ozdemir B, Kanat A, Erturk C, Batcik OE, Balik MS, Yazar U, Celiker FB, Metin Y, Inecikli MF, Guvercin AR. Restoration of Anterior Vertebral Height by Short-Segment Pedicle Screw Fixation with Screwing of Fractured Vertebra for the Treatment of Unstable Thoracolumbar Fractures. World Neurosurg 2017; 99:409-417. [DOI: 10.1016/j.wneu.2016.11.133] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/23/2016] [Accepted: 11/24/2016] [Indexed: 12/11/2022]
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Kazdal H, Kanat A, Aydin MD, Yazar U, Guvercin AR, Calik M, Gundogdu B. Sudden death and cervical spine: A new contribution to pathogenesis for sudden death in critical care unit from subarachnoid hemorrhage; first report - An experimental study. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2017; 8:33-38. [PMID: 28250634 PMCID: PMC5324357 DOI: 10.4103/0974-8237.199870] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Context: Sudden death from subarachnoid hemorrhage (SAH) is not uncommon. Aims: The goal of this study is to elucidate the effect of the cervical spinal roots and the related dorsal root ganglions (DRGs) on cardiorespiratory arrest following SAH. Settings and Design: This was an experimental study conducted on rabbits. Materials and Methods: This study was conducted on 22 rabbits which were randomly divided into three groups: control (n = 5), physiologic serum saline (SS; n = 6), SAH groups (n = 11). Experimental SAH was performed. Seven of 11 rabbits with SAH died within the first 2 weeks. After 20 days, other animals were sacrificed. The anterior spinal arteries, arteriae nervorum of cervical nerve roots (C6–C8), DRGs, and lungs were histopathologically examined and estimated stereologically. Statistical Analysis Used: Statistical analysis was performed using the PASW Statistics 18.0 for Windows (SPSS Inc., Chicago, Illinois, USA). Intergroup differences were assessed using a one-way ANOVA. The statistical significance was set at P < 0.05. Results: In the SAH group, histopathologically, severe anterior spinal artery (ASA) and arteriae nervorum vasospasm, axonal and neuronal degeneration, and neuronal apoptosis were observed. Vasospasm of ASA did not occur in the SS and control groups. There was a statistically significant increase in the degenerated neuron density in the SAH group as compared to the control and SS groups (P < 0.05). Cardiorespiratory disturbances, arrest, and lung edema more commonly developed in animals in the SAH group. Conclusion: We noticed interestingly that C6–C8 DRG degenerations were secondary to the vasospasm of ASA, following SAH. Cardiorespiratory disturbances or arrest can be explained with these mechanisms.
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Affiliation(s)
- Hizir Kazdal
- Department of Anesthesiology and Reanimation, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ayhan Kanat
- Department of Neurosurgery, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Mehmet Dumlu Aydin
- Department of Neurosurgery, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Ugur Yazar
- Department of Neurosurgery, Medical Faculty, Karadeniz Technical University, Trabzon, Turkey
| | - Ali Riza Guvercin
- Department of Neurosurgery, Medical Faculty, Karadeniz Technical University, Trabzon, Turkey
| | - Muhammet Calik
- Department of Neurosurgery, Medical Faculty, Karadeniz Technical University, Trabzon, Turkey
| | - Betul Gundogdu
- Department of Pathology, Medical Faculty, Ataturk University, Erzurum, Turkey
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Ozdemir B, Kanat A, Batcik OE, Erturk C, Celiker FB, Guvercin AR, Yazar U. First report of perforation of ligamentum flavum by sequestrated lumbar intervertebral disc. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2017; 8:70-73. [PMID: 28250640 PMCID: PMC5324364 DOI: 10.4103/0974-8237.199867] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Disc fragments are well known to migrate to superior, inferior, or lateral sites in the anterior epidural space, posterior epidural migrated lumbar disc fragments is an extremely rare disorder, 61 cases have been reported to date. However, there were no cases with perforated ligamentum flavum (LF). We report a different case with perforation of ligamentum ligamentum by disc fragment. To the best of our knowledge, this is the first report of perforation LF by a posterior epidural migrated sequester disc.
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Affiliation(s)
- Bulent Ozdemir
- Department of Neurosurgery, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ayhan Kanat
- Department of Neurosurgery, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Osman Ersegun Batcik
- Department of Neurosurgery, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Cihangir Erturk
- Department of Neurosurgery, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Fatma Beyazal Celiker
- Department of Radiology, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ali Riza Guvercin
- Department of Neurosurgery, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Ugur Yazar
- Department of Neurosurgery, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Yolas C, Ozdemir NG, Kanat A, Aydin MD, Keles P, Kepoglu U, Aydin N, Gundogdu C. Uncovering a New Cause of Obstructive Hydrocephalus Following Subarachnoid Hemorrhage: Choroidal Artery Vasospasm–Related Ependymal Cell Degeneration and Aqueductal Stenosis—First Experimental Study. World Neurosurg 2016; 90:484-491. [DOI: 10.1016/j.wneu.2016.03.049] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/16/2016] [Accepted: 03/17/2016] [Indexed: 10/22/2022]
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Balik MS, Kanat A, Erkut A, Ozdemir B, Batcik OE. Inequality in leg length is important for the understanding of the pathophysiology of lumbar disc herniation. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2016; 7:87-90. [PMID: 27217654 PMCID: PMC4872568 DOI: 10.4103/0974-8237.181829] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objective: Inequality in leg length may lead to to abnormal transmission of load across the endplates and degeneration lumbar spine and the disc space. There has been no study focusing on lumbar disc herniation (LDH) and leg length discrepancy. This subject was investigated in this study. Materials and Methods: Consecutive adult patients with leg length discrepancy and low back pain (LBP) admitted to our department were respectivelly studied. Results: A total number of 39 subjects (31 women and eight men) with leg length discrepancy and LBP and 43 (25 females and 18 males) patients with LBP as a control group were tested. Occurrence of disc herniation is statistically different between patients with hip dysplasia and control groups (P < 0.05). Conclusion: The results of this study showed a statistically significant association between leg length discrepancy and occurrence of LDH. The changes of spine anatomy with leg length discrepancy in hip dysplastic patients are of importance in understanding the nature of LDH.
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Affiliation(s)
- Mehmet Sabri Balik
- Department of Orthopedic Surgery, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ayhan Kanat
- Department of Neurosurgery, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adem Erkut
- Department of Orthopedic Surgery, Recep Tayyip Erdogan University, Rize, Turkey
| | - Bulent Ozdemir
- Department of Neurosurgery, Recep Tayyip Erdogan University, Rize, Turkey
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The Important Liaison Between Onuf Nucleus–Pudendal Nerve Ganglia Complex Degeneration and Urinary Retention in Spinal Subarachnoid Hemorrhage: An Experimental Study. World Neurosurg 2016; 89:208-14. [DOI: 10.1016/j.wneu.2016.01.082] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 11/20/2022]
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Kazdal H, Kanat A, Findik H, Sen A, Ozdemir B, Batcik OE, Yavasi O, Inecikli MF. Transorbital Ultrasonographic Measurement of Optic Nerve Sheath Diameter for Intracranial Midline Shift in Patients with Head Trauma. World Neurosurg 2016; 85:292-7. [DOI: 10.1016/j.wneu.2015.10.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 09/30/2015] [Accepted: 10/01/2015] [Indexed: 10/22/2022]
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Yolas C, Kanat A, Aydin MD, Altas E, Kanat IF, Kazdal H, Duman A, Gundogdu B, Gursan N. Unraveling of the Effect of Nodose Ganglion Degeneration on the Coronary Artery Vasospasm After Subarachnoid Hemorrhage: An Experimental Study. World Neurosurg 2015; 86:79-87. [PMID: 26365883 DOI: 10.1016/j.wneu.2015.09.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND Cardiac arrest is a major life-threatening complication of subarachnoid hemorrhage (SAH). Although medullary cardiocirculatuar center injury and central sympathetic overactivity have been suspected of initiating coronary artery spasm-induced cardiac arrest, we aimed to elucidate the effects of vagal ischemia at the brainstem on coronary vasospasm and sudden death in SAH. METHODS Twenty-six rabbits were randomly divided into 3 groups. Control (n = 5); SHAM (n = 8), and SAH group (n = 13). Experimental SAH was applied by injecting homologous blood into the cisterna magna, and the SHAM group was injected with isotonic saline solution also in the cisterna magna., Twenty-one days after the injection, histopathologic changes of the neuron density of nodose ganglia, the vasospasm index values of the coronary arteries, and the electrocardiographic events were analyzed. RESULTS Increased vasospasm index of the coronary arteries and degenerated neuron density of nodose ganglion were significantly different between animals with SAH, control, and SHAM groups (P < 0.005). If neurons of the nodose ganglia are lesioned due to ischemic insult during SAH, the heart rhythm regulation by vagus afferent reflexes is disturbed. CONCLUSIONS We found that there is causal relationship between nodose ganglion degeneration and coronary vasospasm. Our finding could be the reason that many cardiac events occur in patients with SAH. Vagal pathway paralysis induced by indirect sympathetic overactivity may trigger coronary vasospasm and heart rhythm disturbances. Our findings will aid in the planning of future experimental studies and in determining the clinical relevance of such studies.
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Affiliation(s)
- Coskun Yolas
- Department of Neurosurgery, Erzurum Regional Research and Education Hospital, Erzurum, Turkey
| | - Ayhan Kanat
- Department of Neurosurgery, Recep Tayyip Erdogan University, Medical Faculty, Rize, Turkey.
| | - Mehmet Dumlu Aydin
- Department of Neurosurgery, Ataturk University, Medical Faculty, Erzurum, Turkey.
| | - Ender Altas
- Plandoken Goverment Hospital, Department of Cardiology, Erzurum, Turkey
| | - Ilyas Ferit Kanat
- Department of Internal Medicine, Atatürk Training and Research Hospital, Ankara, Turkey
| | - Hizir Kazdal
- Department of Anesthesiology and Reanimation, Recep Tayyip Erdogan University, Medical Faculty, Rize, Turkey
| | - Aslihan Duman
- Department of Pathology, Giresun University, Medical Faculty, Giresun, Turkey
| | - Betul Gundogdu
- Department of Pathology, Ataturk University, Medical Faculty, Erzurum, Turkey
| | - Nesrin Gursan
- Department of Pathology, Ataturk University, Medical Faculty, Erzurum, Turkey
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