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Arjona-Sanchez A, Martinez-López A, Moreno-Montilla MT, Mulsow J, Lozano-Lominchar P, Martínez-Torres B, Rau B, Canbay E, Sommariva A, Milione M, Deraco M, Sgarbura O, Torgunrud A, Kepenekian V, Carr NJ, Hoorens A, Delhorme JB, Wernert R, Goere D, Martin-Roman L, Cosyns S, Flatmark K, Davidson B, Khellaf L, Pereira-Perez F, Rodriguez-Ortiz L, Ibáñez-Costa A, Romero-Ruiz A. External multicentre validation of pseudomyxoma peritonei PSOGI-Ki67 classification. Eur J Surg Oncol 2023; 49:1481-1488. [PMID: 36935222 DOI: 10.1016/j.ejso.2023.03.206] [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: 11/02/2022] [Revised: 03/02/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023]
Abstract
BACKGROUND Pseudomyxoma peritonei (PMP) is a rare malignant disease. Adding of the Ki67 proliferation index to the PSOGI PMP classification provided two different subcategories of the extensive HG-PMP group (HG-PMP ≤15% and HG-PMP >15%) with different survival in a previous unicentric study. This study aims to carry out an external and multicentre validation of this new proposed classification. METHOD It was a prospective analysis of samples from a historical and international cohort of patients. A representative area with higher cellular density was used to determine the Ki67%. The Ki67 proliferation index (%) was determined in all the HG-PMP patients. A Cox proportional hazard models and multivariable COX models were used. The Kaplan-Meier method and the two-tailed log-rank test were used to analyse the effect of different PSOGI-Ki67 categories on OS and DFS. Its predictive accuracy was analysed using Harrel's C-index and the ROC curve. The calibration was performed using the calibration plots matching. RESULTS After exclusions, 349 patients were available for analysis. The 5-years OS were 86% for LG-PMP, 59% for HG-PMP≤15, 38% for HG-PMP>15 and 42% for SRC-PMP (p = 0.0001). The 5-years DFS were 49% for LG-PMP, 35% for HG-PMP≤15, 16% for HG-PMP>15 and 18% SRC-PMP (p = 0.0001). The discrimination capability of PSOGI-Ki67 was validated. CONCLUSION the PSOGI-Ki67 classification discriminates and predicts the OS and DFS in patients with PMP dividing the HG-PMP category into two well-defined sub-categories. The Ki67 proliferation index should be incorporated routinely in the pathology report for these patients.
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Affiliation(s)
- A Arjona-Sanchez
- Unit of Surgical Oncology, Department of Surgery, Reina Sofia University Hospital, Spain; Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain. https://twitter.com/alarjosan
| | - A Martinez-López
- Unit of Surgical Oncology, Department of Surgery, Reina Sofia University Hospital, Spain; Pathology Unit, Reina Sofia University Hospital, Spain
| | - M T Moreno-Montilla
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain
| | - J Mulsow
- National Centre for Peritoneal Malignancy, Mater Hospital, Dublin, Ireland
| | - P Lozano-Lominchar
- Department of General Surgery, Peritoneal Carcinomatosis, Sarcoma and Complex Pelvis Cases, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - B Martínez-Torres
- Department of General Surgery, Hospital University Fuenlabrada, Madrid, Spain
| | - B Rau
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität, Department of Special Surgical Oncology, Berlin, Germany
| | - E Canbay
- NPO HIPEC Istanbul centre for Peritoneal Surface Malignancies, Istambul, Turkey
| | - A Sommariva
- Advanced Surgical Oncology Unit Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS Padova, Italy
| | - M Milione
- Pathology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - M Deraco
- Peritoneal Surfaces Malignance Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - O Sgarbura
- Department of Surgical Oncology, Cancer Institute of Montpellier, University of Montpellier, IRCM, Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - A Torgunrud
- Department of Tumor Biology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | | | - N J Carr
- Pathology Department, Peritoneal Malignancy Institute Basingstoke, UK
| | - A Hoorens
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - J B Delhorme
- Department of general and digestive surgery, Hautepierre Hospital, Hôpitaux universitaires de Strasbourg, France
| | - R Wernert
- Surgical Oncology, ICO Paul Papin, Angers, France
| | - D Goere
- Digestive Surgery, APHP Hopital Saint Louis, France
| | - L Martin-Roman
- National Centre for Peritoneal Malignancy, Mater Hospital, Dublin, Ireland
| | - S Cosyns
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - K Flatmark
- Department of Gastorenterological Surgery, The Norwegian Radium Hospital, Oslo university Hospital, Oslo, Norway
| | - B Davidson
- Department of Pathology, The Norwegian Radium Hospital, Oslo university Hospital, Oslo Norway. University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, N-0316, Oslo, Norway
| | - L Khellaf
- Department of Pathology, Cancer Institute of Montpellier, University of Montpellier, Montpellier, France
| | - F Pereira-Perez
- Department of General Surgery, Hospital University Fuenlabrada, Madrid, Spain
| | - L Rodriguez-Ortiz
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; Digestive Surgery, APHP Hopital Saint Louis, France
| | - A Ibáñez-Costa
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain
| | - A Romero-Ruiz
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain.
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Canbay E, Sezer E, Gurkan F, Gozen O, Koylu E, Sozmen E. Validation of a new LC-MS/MS method for serum/saliva cortisol measurement and comparison with commercial ELISA/CLIA methods. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.143] [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: 10/26/2022]
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Yonemura Y, Canbay E, Li Y, Coccolini F, Glehen O, Sugarbaker PH, Morris D, Moran B, Gonzaletz-Moreno S, Deraco M, Piso P, Elias D, Batlett D, Ishibashi H, Mizumoto A, Verwaal V, Mahtem H. A comprehensive treatment for peritoneal metastases from gastric cancer with curative intent. Eur J Surg Oncol 2016; 42:1123-31. [PMID: 27160355 DOI: 10.1016/j.ejso.2016.03.016] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 03/12/2016] [Accepted: 03/16/2016] [Indexed: 12/29/2022] Open
Abstract
Recently, Peritoneal Surface Oncology Group International (PSOGI) developed a novel comprehensive treatment consisting of cytoreductive surgery (CRS) and perioperative chemotherapy (POC) for the treatment of peritoneal metastases (PM) from gastric cancer with curative intent. This article reviews the results of this treatment and verifies its indication. In this strategy, peritoneal cancer index (PCI) is determined by laparoscopy, and a peritoneal port is placed. Neoadjuvant bidirectional intraperitoneal/systemic chemotherapy (NIPS) is performed for 3 cycles, and then laparotomy is performed. Cytoreductive surgery with peritonectomy procedures and hyperthermic intraperitoneal chemoperfusion (HIPEC) are performed. Multivariate analyses showed that completeness of cytoreduction, pathologic response to NIPS and PCI level and cytologic status after NIPS, as independent prognostic factors. PCI less than cut-off level after NIPS, negative cytology after NIPS, and positive response to NIPS were identified as the indications for comprehensive treatment. Patients who hold these criteria should be considered as the candidates for CRS and HIPEC.
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Affiliation(s)
- Y Yonemura
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, Kusatsu General Hospital, Kishiwada, Shiga, Japan; NPO to Support Peritoneal Surface Malignancy Treatment, Oosaka, 600 8189, Japan.
| | - E Canbay
- NPO to Support Peritoneal Surface Malignancy Treatment, Oosaka, 600 8189, Japan
| | - Y Li
- Department of Peritoneal Surface Oncology, Beijin Shijitan Hospital of Capital Medical University, Beijin, 100038, China
| | - F Coccolini
- General Surgery Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - O Glehen
- Dēpartement de Chirurgie Gēnerale, Centre Hospitalier Lyon-Sud Hospices Civils de Lyon, Universitē Lyon, 69495, France
| | - P H Sugarbaker
- Center of Gastrointestinal Malignancies, Program in Peritoneal Surface Malignancies, MedStar Washington Hospital Center, Washington, DC, 20010, USA
| | - D Morris
- Department of Surgery, St George Hospital, University of New South Wales, Australia
| | - B Moran
- Peritoneal Malignancy Institute Basingstoke, Hampshire Hospitals Foundation Trust, Adelmaston Road, Basingstoke RG24 9NA, UK
| | - S Gonzaletz-Moreno
- Department of Surgical Oncology, Peritoneal Surface Oncology Program, MD Anderson Cancer Center, Madrid, Spain
| | - M Deraco
- National Cancer Institute of Milan, Italy
| | - P Piso
- Krankenhaus Barmherzige Brieder, Teaching Hospital of the University of Regensburg, Regensburg, Germany
| | - D Elias
- Département de Chirurgie Générale, Institut Gustave Roussy, Villejuif, Cedex, France
| | - D Batlett
- Division of Surgical Oncology, Hillman Cancer Center, 5115 Centre Ave, Pittsburgh, PA, 15232, USA
| | - H Ishibashi
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, Kusatsu General Hospital, Kishiwada, Shiga, Japan
| | - A Mizumoto
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, Kusatsu General Hospital, Kishiwada, Shiga, Japan
| | - V Verwaal
- Oncologisch GE Chirurg, Catharina, Ziekenhuis Eindhoven, The Netherlands
| | - H Mahtem
- Department of Surgical Sciences, Uppsala University, Övriga Samarbeten, Akademiska Sjukhuset, Ing 70 1 Tr, 751 85, Uppsala, Sweden
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Aydogan F, Simsek O, Belli A, Karatas A, Selcukbiricik F, Celik V, Canbay E, Uras C. 270. Sentinel Lymph Node Biopsy in Male Breast Cancer Patients. Eur J Surg Oncol 2012. [DOI: 10.1016/j.ejso.2012.06.271] [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: 10/27/2022] Open
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Aydogan F, Gazioglu E, Canbay E, Aydin I, Aydogan T, Uras C, Celik V, Cengiz A, Ferahman M, Unal H. What has changed in the management of breast cancer in the past 25 years at the Istanbul University Hospital? J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.27_suppl.184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
184 Background: There have been important changes in diagnosis and treatment of the breast cancer during the last century. Diagnosing the cancer in early stages brought the new approaches such as breast conserving surgery instead of mastectomy and sentinel lymph node biopsy instead of direct axillary disection. In this study our purpose is to compare the operations which were performed in 1983 and 2008 on breast cancer patients of our clinic and to search the differences in their ages and tumor characteristics. Methods: In each group the files of 100 patients, who were operated in 1983 and 2008, were compared with each other including the variabilities such as size of the tumor, age of the patient and operation technique. Results: There were 100 patients in both of the groups. Six of the patients (6%), who were operated on in 1983, were found to be between the ages of 20-39 and this percentage was found to be much higher as 19% (19 patients) in 2008. In 1983, there wasn't any patient at stage 0 and the number of patients at stage 1 was 15 (15%), in 2008 the number of stage 0 patient was 9 (9%) and stage 1 patient was 25 (25%). Breast conserving surgery rate was found to be 9% in 1983 and 41% in 2008. Conclusions: According to the data of this study, breast cancer is now being seen at younger ages when compared to 25 years ago. Currently the patients have diagnosis at earlier stages and the breast conserving surgery is much more prevalent. Earlier-stage diagnosis can be explained by widespread use of screening mamographies and increasing consciousness of the patients.
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Affiliation(s)
- F. Aydogan
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - E. Gazioglu
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - E. Canbay
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - I. Aydin
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - T. Aydogan
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - C. Uras
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - V. Celik
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - A. Cengiz
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - M. Ferahman
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
| | - H. Unal
- Istanbul University, Istanbul, Turkey; Bakirkoy Training and Research Hospital, Istanbul, Turkey
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Ozmen V, Unal ES, Muslumanoglu ME, Igci A, Canbay E, Ozcinar B, Mudun A, Tunaci M, Tuzlali S, Kecer M. Axillary sentinel node biopsy after neoadjuvant chemotherapy. Eur J Surg Oncol 2010; 36:23-9. [PMID: 19931375 DOI: 10.1016/j.ejso.2009.10.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2009] [Revised: 10/20/2009] [Accepted: 10/22/2009] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION The role of sentinel lymph node biopsy (SLNB) in patients with locally advanced breast cancer (LABC) with potentially sterilized axillary lymph nodes after neoadjuvant chemotherapy (NAC) remains unclear. PATIENTS AND METHODS Between 2002 and 2008, SLNB with both blue-dye and radioisotope injection was performed in 77 patients with LABC whose cytopathologically confirmed positive axillary node(s) became clinically negative after NAC. Factors associated with SLN identification and false-negative rates, presence of non-sentinel lymph node (non-SLN) metastasis were analyzed retrospectively. RESULTS SLNB was successful in 92% of the patients. Axillary status was predicted with 90% accuracy and a false-negative rate of 13.7%. Patients with residual tumor size >2 cm had a decreased SLN identification rate (p=0.002). Axillary nodal status before NAC (N2 versus N1) was associated with higher false-negative rates (p=0.04). Positive non-SLN(s) were more frequent in patients with multifocal/multicentric tumors (versus unifocal; p=0.003) and positive lymphovascular invasion (versus negative; p=0.0001). SLN(s) positive patients with pathologic tumor size >2 cm (versus <or=2 cm; p=0.004), positive extra-sentinel lymph node extension (versus negative; p=0.002) were more likely to have metastatic non-SLN(s). CONCLUSIONS SLNB has a high identification rate and modest false-negative rate in LABC patients who became clinically axillary node negative after NAC. Residual tumor size and nodal status before NAC affect SLNB accuracy. Additional involvement of non-SLN(s) increases with the presence of multifocal/multicentric tumors, lymphovascular invasion, residual tumor size >2 cm, and extra-sentinel node extension.
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Affiliation(s)
- V Ozmen
- Department of General Surgery, Istanbul University, Istanbul College of Medicine, The Breast Unit, Capa, Istanbul 34390, Turkey.
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Ozmen V, Ozkan Gurdal S, Muslumanoglu M, Igci A, Tuzlali SS, Ozcinar B, Canbay E, Kecer M, Dagoglu T. Predictive factor for residual tumor after lumpectomy for close margins. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e11538] [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: 11/20/2022] Open
Abstract
e11538 Background: It is critical to obtain clear margins to minimize local recurrence after breast conserving surgery(BCS). When re-excisions are performed, there is often no residual disease in the new specimen, calling into question the need for re-excision(s) or mastectomy. The aim of the present study was to identify factors predicting a histologically positive re-excision specimen. Methods: Our prospective breast cancer database was queried for all invasive breast cancer patients who underwent a re-excision lumpectomy for either close or positive margins after an attempt at BCS. Close margins are defined as ≤ 2 mm for invasive carcinoma and presence of ductal carcinoma in situ(DCIS). Clinicopathologic features were correlated with the presence of residual disease in the re-excision specimen. Results: Between February 1997 and August 2008, 2054 patients with early breast cancer underwent surgical treatment in our breast unit. 939(45.7%) of them had BCS. In 543 patients(26.4%), re-excision required due to close margins on the permanent section analysis of their initial surgical specimens. 186 patients(34.3%) had previous excisional biopsy in other clinics. Median age of 543 patients was 50 years. In 290 patients(53.4%), mastectomy was performed due to positive surgical margin or poor cosmetic results. There were no residual tumors in re-excision(65.6 %) or mastectomy(42.4%) specimens of patients. The factors associated with tumor positive re-excision specimen were, age ≤50 years(p=0.044), lymphovascular invasion (p=0.029), multifocality(p<0.001), tumor size >2cm(p=0.008), presence of DCIS(p=0.018), focal margin positivity(p<0.001), DCIS at resection margin(p=0.008) and node positivity (p<0.001). Conclusions: Most of our patients with early breast cancer had unnecessary re-excisions or mastectomy to obtain clear surgical margins. In subset group of patients, re-excision or mastectomy may not be required. No significant financial relationships to disclose.
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Affiliation(s)
- V. Ozmen
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - S. Ozkan Gurdal
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - M. Muslumanoglu
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - A. Igci
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - S. S. Tuzlali
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - B. Ozcinar
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - E. Canbay
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - M. Kecer
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - T. Dagoglu
- Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
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Ozmen V, Muslumanoglu ME, Igci A, Canbay E, Ozcinar B, Mudun A, Eralp Y, Saip P, Tuzlali S, Dincer M, Dagoglu T, Kecer M, Parlak M. Is the sentinel lymph node biopsy accurate for patients with initially clinically axilla-positive locally advanced breast cancer after neoadjuvant chemotherapy? Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-5123] [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: 11/16/2022]
Abstract
Abstract
Abstract #5123
Background: Approximately one third of patients with locally advanced breast cancer (LABC) have no axillary metastatic lymph node(s) after neoadjuvant chemotherapy (NAC). Axillary dissection could be omitted in these patients if SLNB is negative. The aim of this study is to evaluate the accuracy of sentinel lymph node biopsy (SLNB) after NAC for LABC.
 Materials and Methods: Between January 1992 to May 2008, a total of 69 patients with clinical or radiological positive axilla (N1 or N2) in LABC were enrolled in this study. After NAC, all patients underwent SLNB followed by complete axillary lymph node dissection. SLNB was performed with either a combined detection using blue dye and radiocolloid or blue dye alone. All the sentinel lymph nodes were examined by multisection hematoxylin eosin staining and cytokeratin- immunohistochemistry, whereas the non-sentinel nodes were examined by routine histology.
 Results: Sentinel lymph nodes were successfully identified in 58 patients among 69 patients (85%). The median age was 46 (range 25 to 76). The clinical stages before chemotherapy were as follows: IIB:46%, IIIA: 22%, and IIIB: 32%, respectively. All of 58 patients had either clinically or radiologically suspicious node-positive disease based on ultrasound findings before neoadjuvant chemotherapy. Pathologic complete response were obtained in 5 patients (9%). The false negative rate was found to be 17.4 % (8/46), whereas the accuracy rate was 86.2% (50/58) among patients with succesful lymphatic mapping.
 Conclusion: The accuracy of the SLNB procedure seems to be not reliable in patients with locally advanced disease with a positive axilla before NAC therapy due to its high false negative rates. Therefore, complete axillary dissection is still required in patients with a positive-axilla before chemotherapy.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 5123.
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Affiliation(s)
- V Ozmen
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - ME Muslumanoglu
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - A Igci
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - E Canbay
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - B Ozcinar
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - A Mudun
- 2 Nucleer Medicine, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Y Eralp
- 3 Medical Oncology, Istanbul University, Oncology Institute, Istanbul, Turkey
| | - P Saip
- 3 Medical Oncology, Istanbul University, Oncology Institute, Istanbul, Turkey
| | - S Tuzlali
- 4 Pathology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - M Dincer
- 5 Radiation Oncology, Istanbul University, Oncology Institute, Istanbul, Turkey
| | - T Dagoglu
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - M Kecer
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - M Parlak
- 1 General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
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Unal B, Karabeyoglu M, Huner T, Canbay E, Eroglu A, Yildirim O, Dolapci M, Bilgihan A, Cengiz O. Ethyl pyruvate protects colonic anastomosis from ischemia-reperfusion injury. Surg Innov 2008; 16:21-5. [PMID: 19064591 DOI: 10.1177/1553350608328584] [Citation(s) in RCA: 9] [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: 01/10/2023]
Abstract
Ethyl pyruvate is a simple derivative in Ca(+2)- and K(+)-containing balanced salt solution of pyruvate to avoid the problems associated with the instability of pyruvate in solution. It has been shown to ameliorate the effects of ischemia-reperfusion (I/R) injury in many organs. It has also been shown that I/R injury delays the healing of colonic anastomosis. In this study, the effect of ethyl pyruvate on the healing of colon anastomosis and anastomotic strength after I/R injury was investigated. Anastomosis of the colon was performed in 32 adult male Wistar albino rats divided into 4 groups of 8 individuals: (1) sham-operated control group (group 1); (2) 30 minutes of intestinal I/R by superior mesenteric artery occlusion (group 2); (3) I/R+ ethyl pyruvate (group 3), ethyl pyruvate was administered as a 50-mg/kg/d single dose; and (4) I/R+ ethyl pyruvate (group 4), ethyl pyruvate administration was repeatedly (every 6 hours) at the same dose (50 mg/kg). On the fifth postoperative day, animals were killed. Perianastomotic tissue hydroxyproline contents and anastomotic bursting pressures were measured in all groups. When the anastomotic bursting pressures and tissue hydroxyproline contents were compared, it was found that they were decreased in group 2 when compared with groups 1, 3, and 4 (P < .05). Both anastomotic bursting pressure (P = .005) and hydroxyproline content (P < .001) levels were found to be significantly increased with ethyl pyruvate administration when compared with group 2. When ethyl pyruvate administration doses were compared, a significant difference was not observed (P > .05). Ethyl pyruvate significantly prevents the delaying effect of I/R injury on anastomotic strength and healing independent from doses of administration.
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Affiliation(s)
- B Unal
- Department of Surgery, Faculty of Medicine, Inonu University, Malatya, Turkey
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Karadayi K, Turan M, Canbay E, Topcu O, Sen M. Laparoscopic versus Open Appendectomy: Analysis of Systemic Acute-Phase Responses in a Prospective Randomized Study. Visc Med 2004. [DOI: 10.1159/000076078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Topcu O, Canbay E, Turan M, Arici S, Sumer Z, Sen M. Inflammatory Pseudotumor of the Sigmoid Colon by <i>Enterobius vermicularis:</i> A Case Report. Visc Med 2004. [DOI: 10.1159/000081235] [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: 11/19/2022] Open
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Karadayi K, Canbay E, Turan M, Gökgöz S, Sen M. Acute Cholecystitis, Obstructive Jaundice, Pyogenic Cholangitis, and Acute Pancreatitis Caused by Ascaris lumbricoides: Report of a Case. Visc Med 2003. [DOI: 10.1159/000072127] [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: 11/19/2022] Open
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Abstract
This paper aimed to analyze the association of polymorphism of GSTM1 0/0 genotype with laryngeal cancer along a hospital based case-control study. Polymorphisms of GSTM1 0/0 of samples from 36 patients with laryngeal cancer and 35 healthy controls were detected by PCR method. The reaction used as GSTM1 primers, using the sequence sense: 5'-CTGCCCTACTTGGATTGATGGG-3' and antisense: 5'-TGGATTGTAGCAGATCATGC-3'. N Acetyl transferase 1 (NAT1) gene using the primers sense: 5'-TAAAAGTAAAATGATTTGCTTTCG-3' and antisense: 5'- GCTTTCTAGCATAAATCACCAA-3' was used as internal positive control. Two sided 2 and multivariation analysis were used to analyse the results. The proportions of GSTM1 deleted genotype in cases and controls were 47.2% and 54.3%, respectively. There was significant increment of GSTM 0/0 genotype frequency in moderate smokers group of patients compared to control (P=0.033, OR= 4.78, 95% CI = 1.30-7.13). We conclude that GSTM1 deleted genotype may be a genetic susceptibility marker for laryngeal cancer whose exposed to low doses carcinogens. The absence of this enzyme seems to have a role in the development of laryngeal cancer, in which the mechanism still needs further investigation.
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Affiliation(s)
- F Bardakci
- Department of Biology, Faculty of Science, Cumhuriyet University Hospital, Sivas, Turkey
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Canbay E, Norman M, Kilic E, Goffin V, Zachary I. Prolactin stimulates the JAK2 and focal adhesion kinase pathways in human breast carcinoma T47-D cells. Biochem J 1997; 324 ( Pt 1):231-6. [PMID: 9164861 PMCID: PMC1218421 DOI: 10.1042/bj3240231] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Treatment of T47-D human breast carcinoma cells with recombinant prolactin (rhPRL) induced a concentration- and time-dependent increase in the phosphotyrosine content of JAK2. rhPRL also stimulated JAK2 tyrosine phosphorylation more weakly in three other breast carcinoma lines, MCF-7, ZR-75-1 and MDA-MB-231. Furthermore it stimulated tyrosine phosphorylation of two isoforms of the transcriptional activator STAT5, STAT5a and STAT5b. Surprisingly, rhPRL treatment of T47-D cells also stimulated tyrosine phosphorylation of focal adhesion kinase (FAK), as determined by immunoprecipitation with anti-phosphotyrosine antibody followed by immunoblotting with a specific FAK antibody. The effect of rhPRL was rapid and concentration-dependent, being maximal at 5 ng/ml. At rhPRL concentrations above 25 ng/ml, FAK tyrosine phosphorylation declined but remained above control levels at 100 ng/ml. rhPRL also stimulated paxillin tyrosine phosphorylation in T47-D cells with similar concentration- and time-dependence. In a second human breast carcinoma cell line, MCF-7, rhPRL produced very similar effects on FAK and paxillin tyrosine phosphorylation. These findings identify a new protein tyrosine kinase pathway in the action of the lactogenic hormone rhPRL and represent the first report that a hormone acting through a member of the haemopoietin receptor superfamily can regulate the FAK/paxillin pathway.
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Affiliation(s)
- E Canbay
- Department of Medicine, University of Bristol, Bristol Royal Infirmary, Marlborough Street, Bristol BS2 8HW, U.K
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Canbay E, Prinsley P. The case of the disappearing fish bone. J Otolaryngol 1995; 24:375-376. [PMID: 8699607] [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: 05/22/2023]
Abstract
This article reports the 9-month follow-up CT scan of a patient with a pharyngeal fish bone that had migrated into the soft tissues of the neck. The patient had been managed conservatively and remains well, the fish bone having disappeared completely and presumed to have been resorbed.
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Affiliation(s)
- E Canbay
- Department of ENT, Cumhuriyet University, Sivas, Turkey
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Canbay E, Prinsley P. Radiology case of the month. The case of the migrating fish bone? J Otolaryngol 1993; 22:132-133. [PMID: 8515512] [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] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- E Canbay
- ENT Department, Royal Free Hospital, London, England
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Abstract
The cholesterol granuloma is a particular form of granulation tissue developing as part of a variety of tissue reactions, Cholesterol granuloma is not related to cholesteatoma which may be regarded as an epidermoid cyst of the middle ear or temporal bone. Cholesterol granulomas are rarely associated with such cases (Friedmann, 1976; Gherini et al., 1985). Microscopically, the cholesterol granuloma consists of dense masses of cholesterol crystals which appear as clefts. They are surrounded by foreign body giant cells, foam cells, plasma cells and lymphocytes. There is frequently some fresh blood and some blood pigment (Wilhelm, 1977; Beales, 1979; Gibb, 1979). It seems probable that inflammation and prolonged obstruction of a bony cavity that is normally aerated, are the main ways in which cholesterol is concentrated in the paranasal sinuses. It could be expected to be relatively frequent in the maxillary and frontal sinus, but only a few cases have been reported in the literature and only nine cases affecting the maxillary sinus have been published over the last 22 years (Milton and Bickerton, 1986). We have recently found a cholesterol granuloma arising in the maxillary antrum.
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Affiliation(s)
- H A Gunes
- Department of Pathology, Medical School, Cumhuriyet University, Sivas, Turkey
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