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RISS 인기검색어
- 검색키워드
- 저자 : Bekir Kuru (검색결과 3 건)
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Koca, Bulent,Kuru, Bekir,Ozen, Necati,Yoruker, Savas,Bek, Yuksel Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.3
Background: To avoid performing axillary lymph node dissection (ALND) for non-sentinel lymph node (SLN)-negative patients with-SLN positive axilla, nomograms for predicting the status have been developed in many centers. We created a new nomogram predicting non-SLN metastasis in SLN-positive patients with invasive breast cancer and evaluated 14 existing breast cancer models in our patient group. Materials and Methods: Two hundred and thirty seven invasive breast cancer patients with SLN metastases who underwent ALND were included in the study. Based on independent predictive factors for non-SLN metastasis identified by logistic regression analysis, we developed a new nomogram. Receiver operating characteristics (ROC) curves for the models were created and the areas under the curves (AUC) were computed. Results: In a multivariate analysis, tumor size, presence of lymphovascular invasion, extranodal extension of SLN, large size of metastatic SLN, the number of negative SLNs, and multifocality were found to be independent predictive factors for non-SLN metastasis. The AUC was found to be 0.87, and calibration was good for the present Ondokuz Mayis nomogram. Among the 14 validated models, the MSKCC, Stanford, Turkish, MD Anderson, MOU (Masaryk), Ljubljana, and DEU models yielded excellent AUC values of > 0.80. Conclusions: We present a new model to predict the likelihood of non-SLN metastasis. Each clinic should determine and use the most suitable nomogram or should create their own nomograms for the prediction of non- SLN metastasis.
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Bulent Koca,Bekir Kuru,Savas Yuruker,Barıs Gokgul,Necati Ozen 대한외과학회 2013 Annals of Surgical Treatment and Research(ASRT) Vol.84 No.3
Purpose: The aim of our study is to evaluate the factors affecting surgical margin positivity among patients with invasive ductal breast cancer who underwent breast-conserving surgery (BCS) after preoperative diagnostic core biopsy. Methods: Two hundred sixteen patients with stage I, II invasive ductal breast carcinoma who had histological diagnosis with preoperative tru-cut biopsy and underwent BCS were included in the present study. Potential factors that affect the positive surgical margin were analyzed. In univariate analysis, the comparisons of the factors affecting the surgical margin positivity were made by chi-square test. Logistic regression test was used to detect the independent factors affecting the surgical margin positivity. Results: Positive axillary lymph node (odds ratio [OR], 8.2; 95% confidence interval [CI], 3.01 to 22.12), lymphovascular invasion (LVI; OR, 3.9; 95% CI, 1.62 to 9.24), extensive intraductal component (EIC; OR, 6.1; 95% CI, 2.30 to 16.00), presence of spiculation (OR, 5.1; 95% CI, 2.00 to 13.10) or presence of microcalcification in the mammography (OR, 13.7; 95% CI, 4.04 to 46.71) have been found to be the independent and adverse factors affecting surgical margin positivity. Conclusion: Considering decision making for the extent of the excision and for achieving negative surgical margin before BCS, positive axillary lymph node, LVI, EIC, spiculation or microcalcification in mammography are related as predictor factors for positive surgical margin.
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Complications of Completion Versus Total Thyroidectomy
Gulcelik, Mehmet Ali,Kuru, Bekir,Dincer, Halil,Camlibel, Mithat,Yuksel, Ulvi Murat,Yenidogan, Erdinc,Reis, Erhan Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.10
Introduction : The objective of this study was to analyze the complication rates after completion thyroidectomy and compare them with primary total benign and malign thyroidectomy causes in total of 647 patients. Patients and Methods: Among 647 patients, there were 159 receiving completion thyroidectomy for differentiated thyroiud cancer (DTC) (Group 1); 217 patients receiving total thyroidectomy for DTC (Group 2) and 271 given total thyroidectomy for benign diseases (Group 3). Results: When groups were compared for complications, there were no significant difference except temporary hypocalcemia between completion thyroidectomy and total thyroidectomy for DTC. When the total thyroidectomies were compared (Group 2 and 3), there were no significant difference observed except unilateral temporary RLN palsy. Conclusion: With improvements in surgical technique and experience, complication rates of thyroidectomy performed for benign or malign diseases are reduced. In spite of the improvement in surgical experience, temporary RLN palsy and hypoparathyroidism are the main complications in completion thyroidectomies which need special attention. To evaluate the patients more carefully in preoperative period and performing adequate thyroidectomy appears more logical.
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