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Fadiloglu E, Donmez HG, Beksac K, Beksac MS. Impact of Increased Activated Protein-C Resistance, Decreased Antithrombin III Activity and Hypocomplementemia on the Gestational Outcomes of Pregnancies with MTHFR Polymorphisms. Z Geburtshilfe Neonatol 2023; 227:434-440. [PMID: 37579788 DOI: 10.1055/a-2134-6452] [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: 08/16/2023]
Abstract
OBJECTIVE To evaluate the impact of increased Activated Protein C (APC) resistance, decreased antithrombin III activity and hypocomplementemia on the pregnancy outcomes of the patients with methylentetrahydrofolate reductase (MTHFR) polymorphisms. METHODS This study was composed of 83 pregnancies with MTHFR polymorphisms. Increased APC resistance, decreased antithrombin III activity and hypocomplementemia were accepted as risk factors for poor gestational outcome. RESULTS Having at least one risk factor resulted in significantly higher rates of "APGAR score of<7" at the first ten minutes (p=0.009). Composite adverse outcome rate was also higher in patients with at least one of the defined risk factors despite lack of statistical significance (p=0.241). Rate of newborn with an "APGAR score of<7" at first ten minutes was significantly higher at patients with hypocomplementemia (p=0.03). CONCLUSION Hypocomplementemia is a risk factor for poor gestational outcome in pregnancies with MTHFR polymorphisms.
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Affiliation(s)
- Erdem Fadiloglu
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Hanife Guler Donmez
- Department of Biology, Hacettepe University Faculty of Science, Ankara, Turkey
| | - Kemal Beksac
- Department of General Surgery, Dr. Abdurrahman Yurtaslan Onkoloji Egitim ve Arastirma Hastanesi, Ankara, Turkey
| | - Mehmet Sinan Beksac
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Hacettepe University, Faculty of Medicine, Ankara, Turkey
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Beksac K, Reçber T, Çetin B, Alp O, Kaynaroğlu V, Kır S, Nemutlu E. GC-MS Based Metabolomics Analysis to Evaluate Short-Term Effect of Tumor Removal on Patients with Early-Stage Breast Cancer. J Chromatogr Sci 2023; 61:612-618. [PMID: 35453141 DOI: 10.1093/chromsci/bmac035] [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: 01/24/2022] [Revised: 03/02/2022] [Accepted: 04/04/2022] [Indexed: 11/12/2022]
Abstract
In this study, it was aimed to demonstrate the short-term effect of breast cancer surgery and tumor removal on the metabolomic profiles of patients with early-stage breast cancer. This cohort consisted of 18 early-stage breast carcinoma patients who had breast cancer surgery to remove tumor and surrounding tissues. The blood samples obtained preoperatively and 24 h after surgery were used in this investigation. Gas chromatography-mass spectrometry (GC-MS) based metabolomic analysis was performed to determine the metabolites. The GC-MS-based metabolomics profile enabled the identification of 162 metabolites in the plasma samples. Postoperatively, glyceric acid, phosphoric acid, O-phosphocolamine, 2-hydroxyethyliminodiacetic acid, N-acetyl-D-mannosamine, N-acetyl-5-hydroxytryptamine, methyl stearate, methyl oleate, iminodiacetic acid, glycerol 1-phosphate, β-glycerol phosphate and aspartic acid were found to be significantly increased (P < 0.05 for all), whereas saccharic acid, leucrose, gluconic acid, citramalic acid and acetol were significantly decreased (P < 0.05 for all). Breast cancer surgery and tumor removal has an impact on the metabolomic profiles of patients with early-stage breast cancer. These findings can be used for understanding the pathogenesis of breast cancer biology and screening the success of the surgery.
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Affiliation(s)
- Kemal Beksac
- Department of General Surgery, Ankara Oncology Hospital, Ankara 06200, Turkey
| | - Tuba Reçber
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
| | - Bahadır Çetin
- Department of General Surgery, Ankara Oncology Hospital, Ankara 06200, Turkey
| | - Orkun Alp
- Department of Analytical Chemistry, Faculty of Pharmacy, Gazi University, Ankara 06330, Turkey
| | - Volkan Kaynaroğlu
- Department of General Surgery, Faculty of Medicine, Hacettepe University, Ankara 06100, Turkey
| | - Sedef Kır
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
| | - Emirhan Nemutlu
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
- Bioanalytic and Omics Laboratory, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
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Antmen E, Ermis M, Kuren O, Beksac K, Irkkan C, Hasirci V. Nuclear Deformability of Breast Cells Analyzed from Patients with Malignant and Benign Breast Diseases. ACS Biomater Sci Eng 2023; 9:1629-1643. [PMID: 36706038 DOI: 10.1021/acsbiomaterials.2c01059] [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] [Indexed: 01/28/2023]
Abstract
Breast cancer is a heterogeneous and dynamic disease, in which cancer cells are highly responsive to alterations in the microenvironment. Today, conventional methods of detecting cancer give a rather static image of the condition of the disease, so dynamic properties such as invasiveness and metastasis are difficult to capture. In this study, conventional molecular-level evaluations of the patients with breast adenocarcinoma were combined with in vitro methods on micropatterned poly(methyl methacrylate) (PMMA) biomaterial surfaces that deform cells. A correlation between deformability of the nuclei and cancer stemness, invasiveness, and metastasis was sought. Clinical patient samples were from regions of the breast with different proximities to the tumor. Responses at the single-cell level toward the micropatterned surfaces were studied using CD44/24, epithelial cell adhesion marker (EpCAM), MUC1, and PCK. Results showed that molecular markers and shape descriptors can discriminate the cells from different proximities to the tumor center and from different patients. The cells with the most metastatic and invasive properties showed both the highest deformability and the highest level of metastatic markers. In conclusion, by using a combination of molecular markers together with nuclear deformation, it is possible to improve detection and separation of subpopulations in heterogenous breast cancer specimens at the single-cell level.
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Affiliation(s)
- Ezgi Antmen
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
| | - Menekse Ermis
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
| | - Ozgur Kuren
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
| | - Kemal Beksac
- Department of General Surgery, Ankara Oncology Hospital, Yenimahalle, Ankara06800, Turkey
| | - Cigdem Irkkan
- Department of Pathology, Ankara Oncology Hospital, Yenimahalle, Ankara06800, Turkey
| | - Vasif Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
- Department of Biomedical Engineering, Acibadem Mehmet Ali Aydinlar University (ACU), Istanbul34752, Turkey
- ACU Biomaterials Center, Acibadem Mehmet Ali Aydinlar University (ACU), Atasehir, Istanbul34752, Turkey
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Beksac K, Donmez HG, Cagan M, Beksac MS. Impact of anti-thyroid peroxidase and anti-thyroglobulin antibodies on the gestational outcome of euthyroid pregnancies: A retrospective study. Hum Antibodies 2022; 30:157-163. [PMID: 35912736 DOI: 10.3233/hab-220010] [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: 11/15/2022]
Abstract
BACKGROUND Thyroglobulin (anti-TG) and/or thyroid peroxidase (anti-TPO) autoantibodies are associated with higher rates of poor gestational outcomes. OBJECTIVE To demonstrate the impact of anti-TPO and anti-TG autoantibodies on the gestational outcomes of euthyroid pregnant women with a history of poor gestational outcome and thyroid gland disorders. METHODS This retrospective study included totally 75 euthyroid pregnant, 30 of women with high thyroid autoantibodies (Anti-TPO/Thyroglobulin-positive group) and 45 of them without autoantibodies (control group). RESULTS We could not demonstrate significant differences between two groups in terms of risk factors/co-morbidities, obstetric complications, gestational outcomes, and birth data (p> 0.05). However, enhanced miscarriage rates were observed among the Anti-TPO/Thyroglobulin-positive and control groups without significance (36.7% and 17.8% respectively, p= 0.116). High neonatal intensive care unit (NICU) admission rates were found for control and Anti-TPO/Thyroglobulin-positive groups (16.2% and 21.1%, respectively) (p= 0.720). Clinically, we compared the two groups in terms of the existence and the types of goiter (diffuse and nodular), and demonstrated that nodular goiter was statistically more frequent in the control group (40.0% vs. 8.7%, p= 0.015). Alongside, relatively high hereditary thrombophilia and type-2 diabetes mellitus rates were found in the Anti-TPO/Thyroglobulin-positive group (20.0% and 20.0%). CONCLUSION Thyroid autoantibody positivity is likely a risk factor for early pregnancy loss and NICU admission.
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Affiliation(s)
- Kemal Beksac
- Department of General Surgery, Ankara Oncology Hospital, Ankara, Turkey
| | - Hanife Guler Donmez
- Department of Biology, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Murat Cagan
- Division of Perinatology, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Mehmet Sinan Beksac
- Division of Perinatology, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Beksac K, Sahal G, Donmez HG. Thyme essential oil as an antimicrobial and biofilm inhibitory agent against abscesses with P. mirabilis Infections. J Herb Med 2021. [DOI: 10.1016/j.hermed.2021.100446] [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: 10/21/2022]
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Beksac MS, Fadiloglu E, Cakar AN, Gurbuz RH, Atilla P, Onbasilar I, Beksac K, Katlan DC, Mumusoglu S, Calis P, Beksac M. Fetal Cell Microchimerism; Normal and Immunocompromised Gestations in Mice. Fetal Pediatr Pathol 2020; 39:277-287. [PMID: 31436120 DOI: 10.1080/15513815.2019.1651803] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Objective: To compare fetal cell microchimerism in normal and immunocompromised gestations. Materials and methods: The study consists of two groups of mature female mice. In the control group and the immunocompromised study group, 5 mg of saline and cyclosporine were injected intraperitoneally, respectively. In the second step, all female mice were mated with "Actine-Luc (+) green fluorescent protein (GFP)" transgenic male mice. Immunohistochemical studies (ALPL-antiluciferase, cytokeratin-antiluciferase, and CD 105-antiluciferase) were carried out on maternal liver, skin, and lung tissues at 6-7th and 14-15th gestational days, and postpartum 3-4th, 12th, and 18-24 months. Results: GFP (+) cells were detected in maternal liver and skin but not in lung tissue. Liver was the most affected tissue. GFP was found to be more intense in the immunocompromised group. Conclusion: Fetal microchimerism was demonstrated in maternal liver and skin and found to be more intensive in the immunocompromised group.
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Affiliation(s)
- M Sinan Beksac
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Erdem Fadiloglu
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ayse Nur Cakar
- Department of Histology and Embryology, TOBB University Faculty of Medicine, Ankara, Turkey
| | - Rumeysa Hekimoglu Gurbuz
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Pergin Atilla
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ilyas Onbasilar
- Animal Technology Center, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Kemal Beksac
- Department of General Surgery, Dr. Abdurrahman Yurtaslan Oncology Education and Research Hospital, Ankara, Turkey
| | - Doruk Cevdi Katlan
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Sezcan Mumusoglu
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Pinar Calis
- Division of Perinatal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Meral Beksac
- Department of Haematology, Faculty of Medicine, Ankara University, Ankara, Turkey
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Beksac K, Tanacan A, Cagan M, Dönmez HG, Fadiloglu E, Unal C, Beksac MS. Relationship of Cholelithiasis and Urolithiasis with Methylenetetrahydrofolate Reductase Polymorphisms. J INVEST SURG 2020; 34:1104-1107. [PMID: 32228104 DOI: 10.1080/08941939.2020.1742402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/11/2023]
Abstract
AIM To investigate the relationship of cholelithiasis and urolithiasis with Methylenetetrehydrofolate Reductase (MTHFR) polymorphism(s) in patients with poor obstetric history to search whether they are risk factors for adverse pregnancy outcome. MATERIALS AND METHOD This study is consisted of 94 patients with poor obstetric history. Patients were evaluated in terms of the presence of cholelithiasis and urolithiasis in association with MTHFR polymorphism(s). Additional laboratory tests including homocysteine measurements were also performed. ROC analysis for assessing the performance of blood homocysteine level in predicting the presence of cholelithiasis and urolithiasis were also performed. RESULTS Patients were divided into three groups such as cholelithiasis group (n = 9, 9.6%), urolithiasis group (n = 18, 19.1%) and control group (n = 67, 71.3%). Groups did not differ in term of age and Beksac obstetrics index (BOI) which is "[living child+(π/10)]/gravidity." The rate of the presence of MTHFR polymorphisms were 88.9% (8/9), 88.9% (16/18) and 43.3% (29/67) in cholelithiasis, urolithiasis and control groups respectively. Median homocysteine levels were found to be 13.1, 11.6 and 7.2 micromol/lt for the groups respectively. Statistically significant differences were found for MTHFR polymorphism rates and homocysteine levels (<0.001 for both). According to ROC analysis, 10.9 mcmol/L (88.9% sensitivity, 89.6% specificity) and 9.25 mcmol/L (83.3% sensitivity, 73.1% specificity) were determined to be cutoff values of homocysteine for cholelithiasis and urolithiasis respectively. CONCLUSION More frequent MTHFR polymorphisms are observed in women with a clinical history of gall or renal stones. Thus, screening of these patients may be benefical for the approprate management of their subsequent pregnancies.
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Affiliation(s)
- Kemal Beksac
- Department of General Surgery, Ankara Oncology Hospital, Ankara, Turkey
| | - Atakan Tanacan
- Division of Perinatology, Hacettepe University, Ankara, Turkey
| | - Murat Cagan
- Division of Perinatology, Hacettepe University, Ankara, Turkey
| | | | - Erdem Fadiloglu
- Division of Perinatology, Hacettepe University, Ankara, Turkey
| | - Canan Unal
- Division of Perinatology, Hacettepe University, Ankara, Turkey
| | - M S Beksac
- Division of Perinatology, Hacettepe University, Ankara, Turkey
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Abstract
Introduction Residual breast tissue after mastectomy is a problem since breast cancer can arise from it. The aim of this study was to investigate the incidence and location of residual breast tissue following modified radical mastectomy. Methods 111 consecutive breast cancer patients who underwent mastectomy were enrolled in this study. During surgery, after removal of the breast tissue and before skin closure, a 1-cm<sup>2</sup> tissue sample was obtained from each quadrant under the skin flaps. These samples were evaluated histopathologically for the presence of any residual breast tissue. Results Residual breast tissue was detected in the tissue samples of 12/111 (10.8%) patients. 4 of these patients had residual breast tissue in all 4 quadrants. 6 patients had residual tissue in a single quadrant. With 9 positive biopsy results, the upper medial quadrant was the most frequently involved location. The other quadrants had 6 positive biopsy results each. At the end of a median of 20 months of follow-up, none of these patients developed breast cancer recurrences. Conclusion Mastectomy has a high probability of residual breast tissue being left behind. Physicians should be aware of this and act accordingly when planning surgical or follow-up treatment.
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Affiliation(s)
- Ibrahim Ustun
- Department of General Surgery, Ankara Oncology Hospital
| | - Kemal Beksac
- Department of General Surgery, Ankara Oncology Hospital
| | - Olcay Kandemir
- Department of Pathology, Ankara Oncology Hospital, Ankara, Turkey
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Abstract
An undifferentiated embryonal sarcoma of the liver (UESL) is a rare and highly malignant mesenchymal neoplasm that is uncommonly observed in adults. We report a case of UESL found in a 26-year-old female. Our case was initially regarded as a type II hydatid cyst and then a malignant mass in radiological studies. The patient underwent nonanatomic liver resection. There were postoperative complications, but they were handled successfully. The patient received taxol-cisplatin-ifosfamide chemotherapy protocol and is disease-free after six years. Although UESL is exceedingly rare in adults, it must be considered while evaluating large hepatic masses since curative resection has an excellent prognosis.
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Affiliation(s)
- Kemal Beksac
- General Surgery, Dr. Abdurrahman Yurtarslan Ankara Oncology Education and Research Hospital, Ankara, TUR
| | | | - Turkmen Ciftci
- Interventional Radiology, Hacettepe University, Ankara, TUR
| | - Gunes Guner
- Pathology, Hacettepe University, Ankara, TUR
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Beksac K, Orgul G, Ozyuncu O, Yurdakok M, Altundag K, Beksac MS. Chemotherapy during Pregnancy: Cases of Hodgkin's and Non-Hodgkin's Lymphoma, Chronic Myeloid Leukemia, Breast Cancer, Nasopharyngeal Cancer, and Choriocarcinoma. Oncol Res Treat 2017; 40:441-445. [DOI: 10.1159/000473880] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 03/31/2017] [Indexed: 11/19/2022]
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Beksac K, Konan A, Kaynaroglu V. Spontaneously closed gastrocutaneous fistula becomes symptomatic after 30 years with pregnancy. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3416.2017] [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: 11/01/2022]
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Uyar O, Cetin B, Aksel B, Dogan L, Beksac K, Akgul GG, Berberoglu U, Gulcelik MA. Malignancy in Solitary Thyroid Nodules: Evaluation of Risk Factors. Oncol Res Treat 2017; 40:360-363. [DOI: 10.1159/000464409] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 02/22/2017] [Indexed: 11/19/2022]
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Beksac K, Aksel B, Yukruk FA, Kandemir O. Giant retroperitoneal dedifferentiated liposarcoma. Ann Ital Chir 2017; 6:S2239253X17025051. [PMID: 28098568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Liposarcoma is the most frequent type of retroperitoneal sarcomas. Dedifferentiated liposarcoma is the least common subtype and is an extremely rare tumor. CASE REPORT We present the case of a 53-year-old male who was referred with a giant retroperitoneal mass. The patients' mass was deemed unresectable by the previous institution and received chemotherapy with no benefit. We macroscopically removed the 38x32 cm mass with right nefrectomy. Pathological examination revealed dedifferentiated liposarcoma. CONCLUSION Surgery is the gold standart in the treatment of retroperitoneal sarcomas. Giant masses present a challenge for the surgeon with possible major vascular injuries and multiorgan resections. Therefore it is important for these patients to be referred for surgery without delay. KEY WORDS Dedifferentiated liposarcoma, Liposarcoma, Retroperitoneal sarcoma.
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Beksac K, Orgul G, Can GS, Oktem A, Kav T, Beksac MS. Management of Inflammatory Bowel Disease and Pregnancy using Prophylactic Low Dose Low Molecular Weight Heparin and Corticosteroids. J Clin Diagn Res 2017. [DOI: 10.7860/jcdr/2017/24683.10900] [Citation(s) in RCA: 10] [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] [Indexed: 11/24/2022]
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Beksac K, Konan A, Kaynaroglu V. Spontaneously closed gastrocutaneous fistula becomes symptomatic after 30 years with pregnancy. CLIN EXP OBSTET GYN 2017; 44:475-476. [PMID: 29949299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Percutaneous endoscopic gastrostomy (PEG) is the standard procedure of choice for the provision of enteral nutrition in children who require long-term nutritional support. Removal of gastric tubes has a risk of causing gastrocutaneous fistula and this complication is dealt within childhood. The authors report a 34-year old woman who had a PEG procedure at the age of four years due to caustic esophageal injury and recovered without incident. Thirty years later she becomes pregnant and as her pregnancy progresses, her former fistula opening becomes more obvious and at the 34'h week of the pregnancy she' presents to the hospital with fistula. After a successful delivery, the fistula was evaluated and repaired surgically.
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Beksac K, Turhan N, Karaagaoglu E, Abbasoglu O. Risk Factors for Conversion of Laparoscopic Cholecystectomy to Open Surgery: A New Predictive Statistical Model. J Laparoendosc Adv Surg Tech A 2016; 26:693-6. [PMID: 27385483 DOI: 10.1089/lap.2016.0008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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] Open
Abstract
INTRODUCTION Although laparoscopic cholecystectomy is currently the standard treatment for benign gallbladder pathologies, some cases still require conversion to open cholecystectomy. Since open cholecystectomy has a significantly higher morbidity rate and a lengthier stay in the hospital compared with laparoscopic surgery, predicting this conversion would grant a great advantage in the management of cholecystitis. Therefore, in this study, we aimed to develop a predictive statistical model. MATERIALS AND METHODS Between August 2006 and January 2011, 1335 laparoscopic cholecystectomies were initiated at the General Surgery Department of Hacettepe University. One hundred four of these cases were started as laparoscopic surgeries, but converted to open cholecystectomies. In our study, we randomly chose 104 laparoscopically completed cases and compared them with the 104 converted cases. We used 31 parameters, including demographics, ultrasonographic findings, and laboratory values, to compare groups. These parameters were later included in a logistic regression analysis to create a statistical model that predicts conversion to open cholecystectomy. RESULTS Among the 1335 laparoscopically started cases, 104 (7.7%) were converted to open surgery. In our study, we found age, gender, ultrasonographic findings of acute cholecystitis, history of choledocolithiasis, history of abdominal surgery, and alkaline phosphatase (ALP) levels to be significant risk factors. By using a receiver operating characteristic curve, we found that the risk significantly increases after 55 years of age and an ALP over 80 IU/L. DISCUSSION Using four parameters-age, gender, history of abdominal surgery, and ALP-in our statistical model, we were able to predict the conversion from laparoscopic to open cholecystectomy with 70% sensitivity and 79% specificity.
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Affiliation(s)
- Kemal Beksac
- 1 Department of General Surgery, Hacettepe University , Ankara, Turkey
| | - Nihan Turhan
- 1 Department of General Surgery, Hacettepe University , Ankara, Turkey
| | - Ergun Karaagaoglu
- 2 Department of Biostatistics, Hacettepe University , Ankara, Turkey
| | - Osman Abbasoglu
- 1 Department of General Surgery, Hacettepe University , Ankara, Turkey
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Turgal M, Ozgu-Erdinc AS, Beksac K, Ozyuncu O, Karaagaoglu E, Beksac MS. Myomectomy during cesarean section and adhesion formation as a long-term postoperative complication. Ginekol Pol 2015; 86:457-460. [PMID: 26255455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
OBJECTIVES We aimed to evaluate the incidence and features of postoperative adhesion related complications occurring following myolysis or myomectomy performed during cesarean section (C/S). METHODS This cross-sectional study consists of four groups of patients who underwent C/S: group I; myolysis is performed by electric cauterization for small superficial fibroids less than 2 cm. (n: 21), group II; myomectomy is performed for pedunculated fibroids (n: 18), group III; myomectomy is performed for intramural/subserous fibroids less than 5 cm. (n: 23), group IV control group (n: 19) who did not go through myomectomy Repeat C/S is performed to study subjects within 1-5 years. All cases are evaluated in terms of mild to moderate adhesions between omentum and uterus, mild to moderate adnexial area adhesions, mild to moderate incision area adhesions and surgical difficulty due to severe adhesions. RESULTS The incidence of adhesions of omentum and uterus (p= 0.278), mild to moderate adnexial area adhesions (p = 0.831), mild to moderate incision area adhesions (p= 0.804) were similar between the intervention groups (group I, II, and III) and the controls (group IV). CONCLUSION Cesarean myomectomy is a safe procedure and can be performed without significant postoperative adhesion formation.
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Basaran D, Turgal M, Beksac K, Ozyuncu O, Aran O, Beksac MS. Pregnancy-associated breast cancer: clinicopathological characteristics of 20 cases with a focus on identifiable causes of diagnostic delay. ACTA ACUST UNITED AC 2015; 9:355-9. [PMID: 25759617 DOI: 10.1159/000366436] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 11/19/2022]
Abstract
BACKGROUND The primary objective of this study was to evaluate the clinicopathological characteristics of patients with pregnancy-associated breast cancer (PABC), with a special focus on diagnostic delays and the identifiable causes of diagnostic delays. PATIENTS AND METHODS Clinicopathological data of patients treated for PABC between 2003 and 2012 at Hacettepe University Hospital was retrospectively reviewed. RESULTS 20 patients with PABC were included. The pathological examination revealed predominance of invasive ductal carcinoma (80%), grade III tumors (65%) and advanced-stage (III-IV) disease (75%). In 8 patients (40%), there was a diagnostic delay between occurrence of the presenting symptoms and the initiation of breast mass workup. For these 8 patients, the main identifiable causes of diagnostic delay were the attribution of disease-related symptoms to pregnancy or lactation in 5 (63%) and negligence of symptoms in 2 (25%). CONCLUSIONS PABC mostly presents with advanced-stage disease, and there can be a substantial diagnostic delay before these patients receive treatment. Preconceptional, gestational and postpartum examination of women of reproductive age should include a thorough breast examination and should provide adequate information regarding the physiological changes in breast tissue and the possible pathological symptoms.
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Affiliation(s)
- Derman Basaran
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Mert Turgal
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Kemal Beksac
- Department of General Surgery, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ozgur Ozyuncu
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Omer Aran
- Department of General Surgery, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - M Sinan Beksac
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Turgal M, Ozgu-Erdinc A, Beksac K, Ozyuncu O, Karaagaoglu E, Beksac M. Miomektomia podczas cięcia cesarskiego a powstawanie zrostów jako późne powikłanie pooperacyjne. Ginekol Pol 2015. [DOI: 10.17772/gp/2404] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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