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Uysal E, Cine HS, Sahin C. Making stereotactic radiosurgery decisions by calculating the probability of perilesional edema in cavernomas. Eur Rev Med Pharmacol Sci 2023; 27:10917-10925. [PMID: 38039021 DOI: 10.26355/eurrev_202311_34459] [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] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
OBJECTIVE Stereotactic radiosurgery is a therapeutic modality for cavernomas that is associated with certain adverse effects, such as perilesional edema. In this study, we aimed to estimate the presentation of perilesional edema using imaging techniques, considering its location, proximity to major venous and arterial structures, size, depth, and eloquent location. PATIENTS AND METHODS The radiographic evaluation included their sizes, localization of the lobes, whether they were in the deep or superficial regions, eloquent areas, and their proximity to the major arteries and venous sinuses. RESULTS As the size increased, the time to edema increased at the same rate (r=0.972, p=0.001). We determined that the duration of edema increases as it attaches to the great venous structures, and edema occurs over a longer time (r=-0.761, p=0.001). Cavernomas >13 mm had a high probability of causing edema (p=0.0014). Edema occurred with a high probability in patients with an arterial distance <5.69 mm and a venous/arterial distance ratio >8.93 (specificity 100%, selectivity 98.2%). CONCLUSIONS When recommending stereostatic radiosurgery treatment, the possibility of edema formation should be calculated based on the location, size, and proximity of the cavernoma to the vascular structures, and the choice of treatment should be made accordingly.
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Affiliation(s)
- E Uysal
- Department of Neurosurgery, University of Health Sciences Turkey, Prof. Dr. Cemil Tascioglu City Hospital, Istanbul, Turkey.
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Leventoglu S, Sahin C, Mentes B, Balci B, Kozan R. Bascom's cleft lift procedure for pilonidal sinus disease - a video vignette. Colorectal Dis 2023; 25:1938-1939. [PMID: 37537870 DOI: 10.1111/codi.16701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 06/11/2023] [Indexed: 08/05/2023]
Affiliation(s)
- S Leventoglu
- Department of Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - C Sahin
- Department of Surgery, Ankara Yenimahalle Training and Research Hospital, Ankara, Turkey
| | - B Mentes
- Department of Surgery/Proctology Unit, Memorial Ankara Hospital, Ankara, Turkey
| | - B Balci
- Department of Surgery/Proctology Unit, Memorial Ankara Hospital, Ankara, Turkey
| | - R Kozan
- Department of Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
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Leventoglu S, Mentes B, Sahin C, Balci B, Kozan R. Ligation of the intersphincteric fistula tract: a video vignette. Colorectal Dis 2023. [PMID: 37010344 DOI: 10.1111/codi.16557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/20/2023] [Accepted: 03/08/2023] [Indexed: 04/04/2023]
Affiliation(s)
- S Leventoglu
- Department of Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - B Mentes
- Department of Surgery/Proctology Unit, Memorial Ankara Hospital, Ankara, Turkey
| | - C Sahin
- Department of Surgery, Ankara Yenimahalle Training and Research Hospital, Ankara, Turkey
| | - B Balci
- Department of Surgery/Proctology Unit, Memorial Ankara Hospital, Ankara, Turkey
| | - R Kozan
- Department of Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
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Sahin C, Yesildal C. The factors that cause penile shortening after plication surgery in patients with congenital penile curvature: [[es]]Los factores causantes del acortamiento de pene después de la cirugía con plicatura en pacientes con incurvación peneana congénita. Actas Urol Esp 2023; 47:99-103. [PMID: 37078850 DOI: 10.1016/j.acuroe.2022.08.004] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/16/2021] [Accepted: 12/19/2021] [Indexed: 04/21/2023]
Abstract
OBJECTIVE Congenital penile curvature is defined as the non-straightness of the penis without any urethral or penile pathology. We aimed to evaluate the factors that cause penile shortening after plication surgery in patients with congenital penile curvature. METHODS Between November 2010 and December 2020, we retrospectively reviewed patients with CPC undergoing tunica albuginea plication surgery. Before the procedure, patients' age, curvature location and degrees, as well as penile length were recorded. After the treatment, penile lengths were measured and recorded again. Early and late period results were recorded. RESULTS Plication surgery was performed in 130 patients. The median age was 24 years. Seventy-six patients had ventral curvature, 22 had dorsal curvature, 32 had lateral curvature. Average shortening of penile length in patients with curvature below 30° was: ventral 8-16 mm, dorsal 6-13 mm, lateral 5-12 mm. Patients with curvatures above 30° were: ventral 12-22 mm, dorsal 8-20 mm, lateral 2-12 mm. CONCLUSION Penile length shortening after plication is inevitable. Curvature degree and direction are factors affecting penile length after surgery. Therefore, patients and relatives should be informed in more detail about this complication.
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Affiliation(s)
- C Sahin
- Private Ada Tip Hospital, Istanbul, Turkey
| | - C Yesildal
- University of Health and Science Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey.
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Sahin C, Yesildal C. Los factores causantes del acortamiento de pene después de la cirugía con plicatura en pacientes con incurvación peneana congénita. Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2021.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kubat GO, Sahin C, Ozen O. Association of frontal and maxillary bone fractures and concomitant craniocerebral injuries in patients presenting with head trauma. Niger J Clin Pract 2022; 25:342-348. [PMID: 35295058 DOI: 10.4103/njcp.njcp_1582_21] [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: 11/04/2022]
Abstract
Background Maxillofacial fractures and craniocerebral injuries are common in patients with head trauma. These are injuries with high mortality and morbidity. Therefore, patients with head trauma should be evaluated early with a multidisciplinary approach. Aim The association between frontal and maxillary bone fractures and concurrent craniocerebral injuries were investigated in patients presenting with head trauma in this study. The data of the patients were analyzed retrospectively. Methods and Material Age and gender distributions were evaluated in frontal and maxillary fractures. Concomitant craniocerebral injuries were investigated. Craniocerebral injuries were grouped as pneumocephalus, extra-axial, intra-axial injuries and brain edema. Craniocerebral injuries in frontal and maxillary fractures were compared statistically. Results Frontal bone and maxillary bone fractures were detected in 24% and 95% of the patients. Coexistence of pneumocephalus and intra-axial injuries in frontal bone fracture was statistically significant. The association of frontal posterior wall fractures with pneumocephalus and parenchymal contusion was found to be statistically significant. In addition, the association of craniocerebral injuries were evaluated and statistically significant ones were determined. Conclusion The presence of maxillofacial fractures in patients presenting with head trauma increases mortality and morbidity. Craniocerebral injuries can be life-threatening and delay the treatment of facial fractures. Upper facial bone fractures are significantly more common in craniocerebral injuries.
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Affiliation(s)
- G Orhan Kubat
- Department of Otolaryngology, Alaaddin Keykubat University, School of Medicine, Alanya, Antalya, Turkey
| | - C Sahin
- Department of Otolaryngology, Alaaddin Keykubat University, School of Medicine, Alanya, Antalya, Turkey
| | - O Ozen
- Department of Radiology, Alaaddin Keykubat University, School of Medicine, Alanya, Antalya, Turkey
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Soliman AA, Attaby FA, Alajrawy OI, Majeed SR, Sahin C, Varlikli C. Soluble Cytotoxic Ruthenium(II) Complexes with 2-Hydrazinopyridine. RUSS J INORG CHEM+ 2019. [DOI: 10.1134/s0036023619060020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Affiliation(s)
- Ceren Sahin
- Marmara University, School of Pharmacy Department of Pharmacology and Psychopharmacology Research Unit, Istanbul-Turkey
| | - Feyza Aricioglu
- Marmara University, School of Pharmacy Department of Pharmacology and Psychopharmacology Research Unit, Istanbul-Turkey
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Affiliation(s)
- Ceren Sahin
- Marmara University, School of Pharmacy Department of Pharmacology and Psychopharmacology Research Unit, Istanbul - Turkey
| | - Gokhan Unal
- Marmara University, School of Pharmacy Department of Pharmacology and Psychopharmacology Research Unit, Istanbul - Turkey
| | - Feyza Aricioglu
- Marmara University, School of Pharmacy Department of Pharmacology and Psychopharmacology Research Unit, Istanbul - Turkey
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Sahin C, Doostdar N, Neill JC. Towards the development of improved tests for negative symptoms of schizophrenia in a validated animal model. Behav Brain Res 2016; 312:93-101. [DOI: 10.1016/j.bbr.2016.06.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/09/2016] [Accepted: 06/11/2016] [Indexed: 12/12/2022]
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Sahin C, Varim C, Uyanık M. USE OF NEUTROPHILS TO LYMPHOCYTES RATIO AS AN INFLAMMATION MARKER IN PATIENTS WITH CHRONIC TONSILLITIS. Georgian Med News 2016:62-65. [PMID: 27845289] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The aim of this study was to assess the neutrophil to lymphocyte ratio (NLR) as an inflammation marker in patients with chronic tonsillitis and to compare the NLR values to other inflammation markers, such as antistreptolysin-O (ASO), C-Reactive Protein (CRP) and erythrocyte sedimentation rate (ESR). Thirty patients aged between 4 and 15 y.o. who had undergone surgery for chronic tonsillitis were included in this retrospective study. Blood samples including haemogram, ASO, CRP and ESR were taken from the patients the day before and one month after the surgery and were analysed retrospectively. Preoperative ASO values were 170±75.5 U, CRP values were 7.6±5 mg/L, ESR values were 15.7±10 mm/H and NLR values were 0.9±0.2. Postoperative ASO values were 140.9±58.5 U, CRP values were 6.8±3.4 mg/L, ESR values were 12.5±5.4 mm/H and NLR values were 1.2±0.4. Statistically significant decreases were observed in the white blood cell count (WBC), lymphocytes, ASO and ESR results, with increase in NLR values after the surgery (p<0.05). The neutrophil and CRP values after the surgery have shown statistically insignificant decrease (p>0.05). The NLR values were compared with the ASO, CRP and ESR values, which were used as inflammation markers. Negative correlation was found between decrease in ASO and ESR and increase in the NLR values after the surgery.
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Affiliation(s)
- C Sahin
- Sakarya Akyazi State Hospital, ENT Clinic; Sakarya University, Faculty of Medicine, Department of Internal Medicine; 3Faculty of Medicine, Department of Hematology, Turkey
| | - C Varim
- Sakarya Akyazi State Hospital, ENT Clinic; Sakarya University, Faculty of Medicine, Department of Internal Medicine; 3Faculty of Medicine, Department of Hematology, Turkey
| | - M Uyanık
- Sakarya Akyazi State Hospital, ENT Clinic; Sakarya University, Faculty of Medicine, Department of Internal Medicine; 3Faculty of Medicine, Department of Hematology, Turkey
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Sahin C, Varim C, Uyanik M, Acar B, Acar T, Nalbant A. THE USEFULNESS OF MONITORING THE NEUTROPHIL TO LYMPHOCYTE RATIO IN PATIENTS WITH PERIPHERAL VERTIGO. Georgian Med News 2016:52-57. [PMID: 27661276] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The purpose of this study was to evaluate the usefulness of the neutrophil to lymphocyte ratio (NLR) in a differential diagnosis and follow-up of patients with peripheral vertigo. Twenty patients with benign positional paroxysmal vertigo (BPPV) and 20 patients diagnosed with vestibular neuritis (VN) were included in the study. Serum samples were analysed at the initial presentation and on the seventh day of admission retrospectively. The WBC (white blood cell) count was 10500±2100 /mm3, the neutrophil count was 4700±1100/mm3, the lymphocyte count was 5000±1200/mm3 and the NLR was 0.9±0.2 in the VN group. In patients with BPPV, the WBC count was 9200±1300/mm3, the neutrophil count was 5200±1200/mm3, the lymphocyte count was 3100±1200/mm3 and the NLR was 1.9±0.9. The NLR was lower in patients with VN than in patients diagnosed with BPPV. The WBC and lymphocyte count was significantly higher in the patients with VN than in the patients diagnosed with BPPV. Within the first week of admission, the WBC and lymphocyte counts in patients with VN decreased, and the NLR was more elevated than at the admission. It is highly recommended that NLR is used in the diagnosis and follow-up of the most commonly observed aetiological factors of peripheral vertigo, BPPV and VN.
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Affiliation(s)
- C Sahin
- 1Sakarya Akyazi State Hospital, ENT Clinic; 2Sakarya University Hospital, Department of Internal Medicine; 3Department of Internal Medicine, Haematology Clinic; 4Department of Neurology, Sakarya, Turkey
| | - C Varim
- 1Sakarya Akyazi State Hospital, ENT Clinic; 2Sakarya University Hospital, Department of Internal Medicine; 3Department of Internal Medicine, Haematology Clinic; 4Department of Neurology, Sakarya, Turkey
| | - M Uyanik
- 1Sakarya Akyazi State Hospital, ENT Clinic; 2Sakarya University Hospital, Department of Internal Medicine; 3Department of Internal Medicine, Haematology Clinic; 4Department of Neurology, Sakarya, Turkey
| | - B Acar
- 1Sakarya Akyazi State Hospital, ENT Clinic; 2Sakarya University Hospital, Department of Internal Medicine; 3Department of Internal Medicine, Haematology Clinic; 4Department of Neurology, Sakarya, Turkey
| | - T Acar
- 1Sakarya Akyazi State Hospital, ENT Clinic; 2Sakarya University Hospital, Department of Internal Medicine; 3Department of Internal Medicine, Haematology Clinic; 4Department of Neurology, Sakarya, Turkey
| | - A Nalbant
- 1Sakarya Akyazi State Hospital, ENT Clinic; 2Sakarya University Hospital, Department of Internal Medicine; 3Department of Internal Medicine, Haematology Clinic; 4Department of Neurology, Sakarya, Turkey
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Sahin C, Albayrak O, Akdeniz TF, Akbulut Z, Yanikkaya Demirel G, Aricioglu F. Agmatine Reverses Sub-chronic Stress induced Nod-like Receptor Protein 3 (NLRP3) Activation and Cytokine Response in Rats. Basic Clin Pharmacol Toxicol 2016; 119:367-75. [DOI: 10.1111/bcpt.12604] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 04/04/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Ceren Sahin
- Department of Pharmacology and Psychopharmacology Research Unit; Faculty of Pharmacy; Marmara University; Istanbul Turkey
| | - Ozgur Albayrak
- Department of Immunology; Faculty of Medicine; Yeditepe University; Istanbul Turkey
| | - Tuğba F. Akdeniz
- Department of Immunology; Faculty of Medicine; Yeditepe University; Istanbul Turkey
| | - Zeynep Akbulut
- Department of Immunology; Faculty of Medicine; Yeditepe University; Istanbul Turkey
| | | | - Feyza Aricioglu
- Department of Pharmacology and Psychopharmacology Research Unit; Faculty of Pharmacy; Marmara University; Istanbul Turkey
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Sygkridou D, Sahin C, Varlikli C, Stathatos E. Comparative studies of pyridine and bipyridine ruthenium dye complexes with different side groups as sensitizers in sol-gel quasi-solid-state dye sensitized solar cells. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.195] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Altun I, Akin F, Sahin C, Beydilli H. An ECG changed the life of a young boy: a case of arrhythmogenic right ventricular dysplasia. Case Reports 2014; 2014:bcr-2014-204703. [DOI: 10.1136/bcr-2014-204703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Uluca I, Soker M, Ayyildiz M, Yurt M, Sen V, Yel S, Coskun S, Tan I, Sahin C. PP-085 THE ROLE OF FLT3-ITD AND CEBPA MUTATIONS ON PROGNOSIS OF ACUTE LYMPHOBLASTIC LEUKEMIA IN TURKISH PATIENTS. Leuk Res 2014. [DOI: 10.1016/s0145-2126(14)70139-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Oktem G, Sahin C, Dilsiz OY, Demiray SB, Goker ENT, Tavmergen E. Altered Stem Cell Receptor Activity in the Ovarian Surface Epithelium by Exogenous Zinc and/or Progesterone. Drug Res (Stuttg) 2014; 65:252-8. [PMID: 24992499 DOI: 10.1055/s-0034-1376975] [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: 10/25/2022]
Abstract
BACKGROUND Ovarian surface epithelium (OSE) has the characteristics of a stem cell and the potential for differentiation. Previous studies on this subject have succeeded in deriving oocytes from OSE stem cells, leading to the belief that OSE could be used for infertility treatment. METHODS Each rat (n = 10) was subjected to zinc and/or progesterone injection for 5 days after conception. After a 6-day implantation period, ovarian tissues were removed and comprehensive immunohistochemical analysis of stem cell markers was conducted: Sox2, Klf4, Oct3/4, c-Myc, CD117, CD90, SSEA-1 and Notch pathway analysis; Notch1, Jagged1, and Delta1 in the OSE and ovarian stromal cells were evaluated after treatment with zinc, progesterone, or both. RESULTS Progesterone moderately affected Sox2 expression (p < 0.001), while zinc application strongly affected Klf4 and Oct3/4 and immunoreactivity (p < 0.001). CD90 immunoreactivity was decreased in the OSE and stroma of the progesterone group (p = 0.006) compared with the zinc (p = 0.244) and zinc/progesterone groups (p = 0.910). On the other hand, SSEA-1 showed moderate staining in the OSE and weak staining in stromal cells in animals treated with zinc (p = 0.727), progesterone (p = 0.626), and zinc/progesterone (p = 0.371), with no differences compared with control. Zinc application affected Notch pathway immunoreactivity, with a significant increase in Notch1 (p = 0.0015) and Jagged1 (p < 0.001). CONCLUSIONS The expression of putative stem cell markers in the OSE was verified and stem cell receptor activity was raised in the OSE and ovarian stromal cells by zinc and progesterone. Thus, this increased expression allows the therapeutic use of zinc and progesterone in ovary-related infertility and brings a different perspective to reproductive medicine.
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Affiliation(s)
- G Oktem
- Department of Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - C Sahin
- Department of Obstetrics and Gynecology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - O Y Dilsiz
- Department of Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - S B Demiray
- Department of Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - E N T Goker
- Department of Obstetrics and Gynecology, Ege University Faculty of Medicine, Izmir, Turkey
| | - E Tavmergen
- Department of Obstetrics and Gynecology, Ege University Faculty of Medicine, Izmir, Turkey
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Kara M, Yolbas S, Yildirim A, Gundogdu B, Ozgen M, Sahin C, Koca S. AB0019 Change in MRNA Expression of Sirtuin-2 and Sirtuin-3 in Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yeniel AÖ, Ergenoglu AM, Sanhal CY, Sahin C, Ulukus M, Oztekin K. Does high maternal first trimester iron status have an effect on the 50 g oral glucose test? J OBSTET GYNAECOL 2013; 32:332-4. [PMID: 22519474 DOI: 10.3109/01443615.2012.658894] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We aimed to test the hypothesis that 1st trimester high body iron status is associated with a high positive 50 g oral glucose tolerance test. In this study, 29 pregnant women with positive 50 g oral glucose tolerance test were compared with 94 negative 50 g OGTT patients as the control group in terms of 1st trimester iron status. Both groups had similar age, weight, height, body mass index and also median gravidity and parity values. Our results showed that there were no differences between groups in mean haemoglobin, haematocrit, serum iron, serum ferritin, total iron binding capacity and transferrin. Since it seems that free radicals have much influence on oxidative stress and glucose metabolism, prospective, randomised clinical trials should be designed to demonstrate the possible relation between maternal iron status and glucose intolerance.
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Affiliation(s)
- A Ö Yeniel
- Department of Obstetrics and Gynecology, Ege University Medical School, Bornova, İzmir, Turkey.
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Sever C, Aysal B, Sahin C, Kulahci Y. Contact radiator burn subsequent to spinal anaesthesia. Ann Burns Fire Disasters 2012; 25:102-103. [PMID: 23233830 PMCID: PMC3506204] [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] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Indexed: 06/01/2023]
Abstract
An unusual case is reported in which a patient sustained a third-degree burn of the plantar surface of the right foot as the result of contact with a heating radiator. This occurred when the patient fell asleep in his hospital bed after knee surgery. Spinal anaesthesia is easy to perform, and the risk factors, though present, are not serious. Such accidents are not infrequent and care should be taken to prevent them.
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Affiliation(s)
- C. Sever
- Corresponding author: Assistant Professor Celalettin Sever, MD,Department of Plastic and Reconstructive Surgery and Burn Unit, Gulhane Military Medical Academy, Haydarpasa Training Hospital, Selimiye Mahallesi Tıbbiye Caddesi34668 Üsküdar,Istanbul, Turkey+90 216 542 2656 / +90 532 504 8831+90 216 348 7880
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Göktaş C, Horuz R, Yıldırım M, Faydacı G, Sahin C, Albayrak S. [Major urologic surgical procedures in locally advanced colorectal cancers]. Actas Urol Esp 2012; 36:361-6. [PMID: 22266254 DOI: 10.1016/j.acuro.2011.09.007] [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: 08/29/2011] [Accepted: 09/13/2011] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To evaluate the outcomes of major urological procedures performed in patients with locally advanced colorectal cancer. MATERIAL AND METHODS Data of 37 patients with locally advanced colorectal cancer who underwent major urological surgical procedures along with simultaneous cancer surgery between the years of 2005 and 2010 were retrospectively evaluated. RESULTS The mean age was 58.3 years. Male/Female ratio was 2.7. 59% of the patients were primary, and 41% were recurrent cases of colorectal cancer. Bladder, ureters, urethra, kidneys and prostate were found as invaded in 19, 9, 5, 2 and 2 cases, respectively. The following single or combined procedures were performed; partial (n=11) or total (n=8; 2 combined with urethrocutaneostomy, 6 with ileal-conduit) cystectomy, urethroplasty (n=5), nephroureterectomy (n=2), radical nephrectomy (n=1), partial nephrectomy (n=1), ureteroneocystostomy (n=7), Boari's flap (n=4), transureteroureterostomy (n=3). Prolonged drainage was the most common surgical complication (27%). Urethrocutaneous fistula and total urinary incontinence were encountered in 1 and 1 patient, respectively. The incidence of hydronephrosis and elevated creatinine were 38% (preoperative 27%; postoperative 11%) and 24% (11% preoperative; 13% postoperative), respectively. Two deaths occurred in the first month of operations. Mean duration of follow up was 18(6-28) months for surviving 13 patients. Overall survival in 24 cases resulting in death was 21(1-42) months. CONCLUSIONS Since the most important eventual effects of locally advanced colorectal cancer are on the kidneys from the urological point of view; the aim of an urologist, as a member of surgical team, should be preserving renal function in addition to helping complete removal of the tumor.
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Affiliation(s)
- C Göktaş
- Clínica de Urología, Hospital de Formación Kartal, Estambul, Turquía
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Affiliation(s)
- Tugrul Purnak
- Department of Gastroenterology, Numune Education and Research Hospital, Ankara, Turkey
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Affiliation(s)
- Engin Senel
- Clinic of Dermatology, Çankiri State Hospital, Çankiri, Turkey
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Ergun B, Kavzoglu T, Colkesen I, Sahin C. Data filtering with support vector machines in geometric camera calibration. Opt Express 2010; 18:1927-1936. [PMID: 20174021 DOI: 10.1364/oe.18.001927] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The use of non-metric digital cameras in close-range photogrammetric applications and machine vision has become a popular research agenda. Being an essential component of photogrammetric evaluation, camera calibration is a crucial stage for non-metric cameras. Therefore, accurate camera calibration and orientation procedures have become prerequisites for the extraction of precise and reliable 3D metric information from images. The lack of accurate inner orientation parameters can lead to unreliable results in the photogrammetric process. A camera can be well defined with its principal distance, principal point offset and lens distortion parameters. Different camera models have been formulated and used in close-range photogrammetry, but generally sensor orientation and calibration is performed with a perspective geometrical model by means of the bundle adjustment. In this study, support vector machines (SVMs) using radial basis function kernel is employed to model the distortions measured for Olympus Aspherical Zoom lens Olympus E10 camera system that are later used in the geometric calibration process. It is intended to introduce an alternative approach for the on-the-job photogrammetric calibration stage. Experimental results for DSLR camera with three focal length settings (9, 18 and 36 mm) were estimated using bundle adjustment with additional parameters, and analyses were conducted based on object point discrepancies and standard errors. Results show the robustness of the SVMs approach on the correction of image coordinates by modelling total distortions on-the-job calibration process using limited number of images.
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Affiliation(s)
- B Ergun
- Gebze Institute of Technology, Department of Geodetic and Photogrammetric Engineering, Muallimkoy Campus, 41400 Gebze-Kocaeli, Turkey.
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Sendag F, Sahin C, Zeybek B, Terek MC, Oztekin K, Bilgin O. Retrospective analysis of hysteroscopic findings in breast cancer patients having adjuvant tamoxifen treatment. EUR J GYNAECOL ONCOL 2010; 31:415-417. [PMID: 20882884] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
PURPOSE OF INVESTIGATION To evaluate the effects of tamoxifen on the endometrium of breast cancer patients by hysteroscopy and endometrial sampling. METHODS Thirty-seven breast cancer patients using tamoxifen underwent hysteroscopy because of postmenopausal endometrial thickening or abnormal uterine bleeding. Hysteroscopic findings were compared with histopathology and ultrasonographic measurement of the endometrium. RESULTS Nineteen women showed endometrial abnormalities (51%) out of 37 patients. Negative and positive predictive values for hysteroscopy in detecting endometrial abnormalities were 100% and 94%, respectively. CONCLUSION Endometrial surveillance is an important part of gynecological follow-up in breast cancer patients using tamoxifen and the liberal use of hysteroscopy aids in the diagnosis of abnormal endometrium.
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Affiliation(s)
- F Sendag
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey.
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Kazandi M, Sahin C, Terek MC, Cirpan T, Oztekin K. Clinical evaluation of vulvar lichen sclerosus: case series. EUR J GYNAECOL ONCOL 2010; 31:555-558. [PMID: 21061799] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
INTRODUCTION Vulvar lichen sclerosus is a chronic dermatitis which is located in labial, perineal and perianal areas. The etiology of lichen sclerosus is multifactorial including genetic, autoimmune, hormonal and infectious aspects. MATERIALS AND METHODS A retrospective analysis was carried out of the medical records of 82 patients who were suffering from pruritus vulva. All patients had vulvar biopsy-proven diagnosis of lichen sclerosus. RESULTS Sixty-six of patients (80.4%) were in the postmenopausal period and 16 patients (19.5%) were in the premenopausal phase. Fifteen patients (18.2%) had thyroid disease, six had (7.3%) diabetes mellitus, five had (6.09%) asthma and five patients had (6.09%) other autoimmune diseases. Lichen sclerosus was most commonly located on the labia majora--58 cases (70.7%). Sixty-four patients (78.04%) had used only potent corticosteroid therapy as the sole treatment. CONCLUSION The first-line treatment is topical-potent or ultra-potent corticosteroids in the treatment of lichen sclerosis. Vulvar lichen sclerosis may be associated with autoimmune and thyroid diseases.
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Affiliation(s)
- M Kazandi
- Ege University, Faculty of Medicine, Department of Obstetrics and Gynecology, Izmir, Turkey.
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Abstract
INTRODUCTION The factors and demographic features of pediatric patients with burns in eastern and western cultures differ from each other. In this retrospective study, our aim was to identify the demographic features of pediatric burns presenting to our tertiary burn center catering to a large population from Istanbul. METHODS The demographic data and information of 358 children with burns admitted to the GMM HTH burn center in Istanbul over a 7-year period (2001-2008) were retrospectively reviewed. RESULTS 48 children with burn injuries were hospitalized in our burn center during the study period. Out of the total of 358 patients, 33.79% (121) were infants and toddlers, 39.66% (142) were in early childhood and 26.53% (95) belonged to the late childhood age group. Males were predominantly affected, the total male to female ratio being 1.3:1. 297 (82.9%) of the 358 subjects resided in urban environments and 61 (17.1%) lived in rural areas. Scalds accounted for more than half (88.16%) of all burns, followed by contact (4.96%), flame (3.43%), electrical (1.52%), chemical (1.52%) and sunburn (0.38). Boiling water was the commonest agent, followed by hot tea. The three most frequent areas of burns were the upper limb (126 cases, 31.18%), followed by the lower limb (105 cases, 25.9%), and the trunk (94 cases, 23.26%). The majority (74%) of the patients had burns covering up to 10% of TBSA, and in 98.8% of the patients' the burn size was less than 30% of TBSA. CONCLUSION This study demonstrates that the epidemiological features of pediatric burn patients, based on a review of such patients admitted to our burn center, differ in many aspects between eastern and western populations. Scalds occurring in a domestic setting, with mild to moderate burns, caused the vast majority of hospital admissions. It is necessary to improve the preventive programs and strategies in order to reduce the incidence of pediatric burn trauma.
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Affiliation(s)
- F Uygur
- Department of Plastic and Reconstructive Surgery, Gülhane Military Medical Academy, Haydarpaşha Hospital, Istanbul, Turkey.
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Abstract
Polyorchidism is a rare congenital anomaly frequently associated with maldescent testis, hernia, and torsion. Reports in the literature show an increased risk of testicular malignancy in the presence of polyorchidism. This entity has characteristic sonographic features and the diagnosis is often made on the basis of sonography. Magnetic resonance imaging might also be used for the diagnosis, but is more helpful in cases associated with cryptorchism or neoplasia. A conservative approach is the treatment of choice in uncomplicated cases.
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Affiliation(s)
- A Y Oner
- Department of Radiology, Gazi University School of Medicine, Ankara, Turkey.
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