Publications by authors named "Guerhan Sakman"

Background: This study aims to identify factors predicting recurrence and unfavorable prognosis in cN+ patients who have undergone sentinel lymph node biopsy (SLNB) following neoadjuvant chemotherapy (NAC).

Methods: The retrospective multi-centre "MF18-02" and the prospective multi-centre cohort registry trial "MF18-03" (NCT04250129) included patients with cT1-4N1-3M0 with SLNB+/- axillary lymph node dissection (ALND) post-NAC.

Results: A total of 2407 cN+ patients, who later achieved cN0 status after NAC and subsequently underwent SLNB, were studied.

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  • Ideal partner preferences shape key insights in human mating research, but recent studies face issues such as inconsistent analysis methods and varying findings across different populations.
  • A large-scale study involving 10,358 participants from 43 countries revealed significant effects of preference matching, particularly when analyzing traits collectively, with some traits showing minimal impact on partner evaluations.
  • The research also highlighted gender differences, where both men and women misjudged the importance of traits like attractiveness and earning potential in their stated preferences compared to actual revealed preferences.
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  • The study investigates the safety of omitting axillary lymph node dissection (ALND) in patients with residual axillary disease after neoadjuvant chemotherapy (NAC), focusing on those treated with sentinel lymph node biopsy (SLNB) or targeted axillary dissection (TAD).
  • An analysis of two multicenter cohorts (MF18-02 and MF18-03) included 501 patients who received regional nodal irradiation and achieved a complete clinical response to NAC.
  • Results showed low recurrence rates (0.4% axillary, 0.8% locoregional) and no significant differences in disease-free or disease-specific survival between SLNB and TAD, suggesting ALND omission is safe if patients receive
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Papillary microcarcinomas (PMCs) are papillary carcinomas ≤1 cm in size, with an increasing incidence. Although generally indolent, some cases exhibit aggressive behavior. Recently, active surveillance has been recommended to avoid surgical treatment.

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Background/purpose: Skeletal orthodontic deformities can have functional and aesthetic consequences, making early detection critical. This study aimed to address the issue of parents bringing their children for routine orthodontic checkups after the ideal treatment age has passed. To address this, we developed a mobile application that uses machine-learning to make a preliminary diagnosis of skeletal malocclusion using just one photograph.

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Introduction: The aim of our study is to determine the value of Thyroid Imaging Reporting and Data Systems (TIRADS) scoring in predicting malignancy in thyroid nodules by examining its relationship with fine needle aspiration biopsy and postoperative histopathological results.

Materials And Methods: In this study, patients who underwent surgery after ultrasonographic examination and fine needle aspiration biopsy for thyroid nodules at the General Surgery Clinic of Çukurova University Faculty of Medicine between January 2014 and November 2021 were retrospectively analyzed. The thyroid ultrasonography and fine needle aspiration biopsy of the included patients were performed by a clinician with 15 years of experience.

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Purpose: The present study aimed to investigate previously researched variables in adult people with epilepsy (PWE), which include felt stigma, perceived overprotection, concealment of epilepsy, and epilepsy-related concerns for adolescents with epilepsy (AWE). Another goal was to determine the reported levels of these variables and explore the relationships among them, as well as their associations with demographic and clinical factors. Additionally, we also investigated whether clinical and demographic variables create significant changes in these variables.

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Chylous fistulas (CF) are rare surgical complications and there is no standard treatment. This study presents the treatment modalities performed on patients who developed CF over a 10-year period. During the observation period, CF developed in 29 patients, 16 of whom were women.

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Macroautophagy/autophagy is an evolutionarily conserved cellular stress response mechanism. Autophagy induction in the tumor microenvironment (stroma) has been shown to support tumor metabolism. However, cancer cell-derived secreted factors that initiate communication with surrounding cells and stimulate autophagy in the tumor microenvironment are not fully documented.

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Background: Periductal mastitis (PM) is a rare disease characterized by chronic inflammation of the terminal mammary ducts. Complete removal of terminal lactiferous ducts with Hadfield procedure is a previously defined technique in treatment but carries various complications risks. This study aims to evaluate the effectiveness of modified techniques in the treatment of PM.

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Insecure attachment has been associated with relatively more negative outcomes in mainstream attachment literature, yet several empirical studies show almost half of the populations globally are insecurely attached. Moreover, although attachment security is the universal norm, attachment anxiety and avoidance exhibit significant cultural variation. To explore how this variation can offer certain advantages to people with insecure attachment tendencies, we tested the novel idea that different insecure attachment behaviors can be differentially compatible with varying cultural senses of self (i.

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Objective: In this study, we aimed to investigate the clinical features of Papillary thyroid carcinoma(PTC) Tall cell variant(TCV), long-term outcomes and surgical experience in papillary thyroid carcinoma.

Material-method: 33 patients who were operated in our clinic between August 2012 and March 2018 and diagnosed as TCV in their pathology evaluation were included in the study. The demographic and clinical features of the patients, pathological features of the tumor and long-term results were examined.

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Purpose: The COVID-19 pandemic brought unprecedented conditions for overall health care systems by restricting resources for non-COVID-19 patients. As the burden of the disease escalates, routine elective surgeries are being cancelled. The aim of this paper was to provide a guideline for management of endocrine surgical disorders during a pandemic.

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Purpose: Breast cancer is the most frequent cancer in women, and there is a great variability in surgical practice for treating that cancer in different countries. The aims of this study were to analyze the effect of guidelines from the Turkish Federation of Breast Diseases Societies on academic institutions that have breast centers and to evaluate surgical practice in Turkey in 2018.

Patients And Methods: Between January and March 2019, a survey was sent to breast surgeons who were working in breast centers in academic institutions.

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Objective: The aim of this study is to share the efficacy of the radionuclide occult lesion localization (ROLL) technique in secondary neck exploration in patients who had undergone neck exploration due to thyroid or parathyroid pathology and to share our clinical experience.

Material And Method: Data of 25 patients who underwent secondary neck exploration for recurrent thyroid cancer and parathyroid adenoma between January 2016 and December 2018 at the General Surgery Clinic of Balcalı Hospital, Çukurova University Faculty of Medicine were collected retrospectively. On the operation day, 0.

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Objective: The purpose of this study was to evaluate the visibility of the anterolateral ligament (ALL) by magnetic resonance imaging (MRI) in patients with chronic anterior cruciate ligament (ACL) rupture.

Materials And Methods: This retrospective case - control study compared 1.5 - T MRI scans for 50 patients with a chronic ACL rupture with those of a control group of 50 patients with an intact ACL.

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The Patient Health Questionnaire-9 is used to provisionally diagnose depression and stratify the severity of depression symptoms.

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Purpose: The aim of this study was to evaluate the association between vertebral endplate morphology and the degree of lumbar intervertebral disc degeneration via magnetic resonance imaging (MRI).

Methods: In total, 150 patients who met the inclusion criteria and were 20-60 years of age were retrospectively evaluated. Patients were evaluated for the presence of intervertebral disc degeneration or herniation, and the degree of degeneration was assessed at all lumbar levels.

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Purposes: When the evaluation of patellar instability is examined from the aspect of the conical-cylindrical anatomy of the tibia, metric measurement parameters such as the tuberositas tibia (TT)-trochlear groove (TG) and patellar tendon (PT) insertion-trochlear groove (TG) distances are not sufficient. We asked whether defined angular parameters reveal the rotational movement of the tuberositas tibia on the tibia shaft, additional to the metric parameters and there is a correlation between the metric and angular parameters.

Methods: 19 patients with patellar instability and 22 patients without patellar instability were evaluated.

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Purpose: To evaluate the added value of diffusion-weighted (DWI) magnetic resonance imaging (MRI) by comparison with T2-weighted images alone in the diagnosis of perianal fistula.

Material And Methods: MRI examinations of 123 patients (97 men, 26 women; mean age, 41.9 years) with suspected perianal fistula were retrospectively evaluated by two radiologists.

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This study aimed to compare trochlear morphology seen in magnetic resonance imaging between patients with chondromalacia patella and age-matched control patients without cartilage lesion. Trochlear morphology was evaluated using the lateral trochlear inclination, medial trochlear inclination, sulcus angle and trochlear angle on the axial magnetic resonance images. Consequently, an association between abnormal trochlear morphology and chondromalacia patella was identified in women.

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Purpose: To investigate the feasibility of diffusion-weighted magnetic resonance imaging (DWI) with apparent diffusion coefficient (ADC) values in differentiating endometrial cancer from benign endometrial lesions in postmenopausal patients with vaginal bleeding and endometrial thickening and to predict the depth of myometrial invasion in endometrial cancer.

Materials And Methods: Postmenopausal patients with vaginal bleeding and endometrial thickening were enrolled in this prospective study. T2-weighted, pre- and postcontrast T1-weighted and diffusion-weighted images were obtained.

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Objective: The objective of this study was to assess and describe required and elective components of the 4th post-graduate year (PGY4) in psychiatry residency programs.

Methods: We reviewed the websites of all 193 2014-2015 ACGME accredited psychiatry residency programs for content describing the specific components of the PGY4 year.

Results: Nearly all residency programs (99 %) had some form of required experiences during the PGY4 year.

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In some patients of Fournier gangrene originated from perianal region, it is important to prevent fecal contamination in order to provide healing without wound infection. For this purposes, diverting colostomy or bowel management catheter methods were performed. In this study, it is aimed to carry out a comparison of prognosis and cost efficiency between diverting colostomy and bowel management catheter methods applied for preventing fecal contamination in Fournier's gangrene patients.

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