BSBaha Sezgin

Baha Sezgin

*This is an algorithmically generated author record based on publicly available information.

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Baha Sezgin has a total of 53 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • The Comparison of Electroacoustic and Subjective Voice Quality in Type 3 and 4 Transoral Laser Cordectomy for Early-Stage Glottic Carcinoma

    by Kerem Öztürk, Göksel Turhal, Fetih Furkan Şahin, Baha Sezgin

    One of the main issues in early-stage glottic carcinoma management is the voice quality following different types of treatment modalities. In type 3 and 4 transoral laser cordectomies, the voice outcomes can show significant differences due to the extent of the vocal muscle resection. This study aims to compare the voice quality in patients who underwent type 3 and 4 laser cordectomy for early-stage glottic carcinoma. A total of 30 patients who underwent type 3 (15 patients) and type 4 (15 patients) laser cordectomy for T1a glottic carcinoma between May 2018 and 2020 were included in this retrospective comparative study. Electroacoustic voice analysis and Voice Handicap Index-10 were performed in the postoperative twelfth month and the outcomes were compared between two laser cordectomy groups. The mean age of all patients was 48.6 ± 4.2 years. Noise-to-harmonic ratio, jitter, shimmer, pitch perturbation quotient and amplitude perturbation quotient values were significantly different between two groups (p < 0.05). Fundamental frequency and Voice Handicap Index-10 scores showed no statistically significant difference (p > 0.05). This study reports significantly better results for type 3 against type 4 laser cordectomy by means of objective voice analysis outcomes, except fundamental frequency. On the other hand, self-reported subjective analysis showed very similar results for both groups. Further studies combining data with multiple objective and subjective analyses with larger patient series and longer follow-up are warranted.

  • Fiberoptic endoscopic evaluation of swallowing (FEES) study: the first report in children to evaluate the oropharyngeal dysphagia after esophageal atresia repair

    by Ulgen Celtik, Sibel Eyigor, Emre Divarci, Baha Sezgin, Zafer Dokumcu, Coskun Ozcan, Kerem Ozturk, Ata Erdener

    Background The aim of this study was to evaluate the swallowing problems by fiberoptic endoscopic evaluation of swallowing (FEES) study in both short- and long-gap patients after esophageal atresia (EA) repair. Methods Hospital records of patients who had undergone surgery for EA were reviewed retrospectively. Patients were divided into two groups as short-gap (SG) group (n:16) and long-gap (LG) group (n:10) to compare the swallowing problems. FEES study was performed, and the results were discussed in detail. Results There were twenty-six (16 M/10 F) patients with a mean age at evaluation was 7.52 ∓ 3.68 years. Mean follow-up period was 75.35 ∓ 44.48 months. In FEES study, pharyngeal phase abnormalities were detected in 10 patients (38.4%). Pharyngeal phase abnormalities were detected significantly higher in LG group (p:0.015). Laryngeal penetration/aspiration was seen in four patients on FEES study (15.3%). All of them was in LG group (40%). Laryngeal penetration/aspiration was seen significantly higher in LG group (p:0.014). Conclusion This is the first study to conduct FEES study in children after esophageal atresia repair to evaluate their swallowing conditions. Even though our sample is small, swallowing problems are more common than expected in the cases of LG when compared to SG.


  • Delayed Reconstruction with Full-Thickness Skin Grafts Following Defect Size Reduction in Head and Neck Nonmelanoma Skin Cancer

    by Baha Sezgin, Isa Kaya, Goksel Turhal, Fazil Apaydin

    Different treatment modalities have been applied for nonmelanoma skin cancers (NMSCs) of the head and neck area. One of the most important points after surgical treatment is the selection of appropriate reconstruction methods. The aim of this study is to investigate the efficacy and feasibility of the use of both defect size reduction with sutures and secondary healing with delayed reconstruction with full-thickness skin grafts in NMSC patients. In total, 18 (42.8%) male and 24 (57.2%) female patients with NMSC were operated. Defect size was measured both after excision and just before repair, and the approximate defect area was calculated with ImageJ software. Reconstruction was performed after 14 days in all patients in the second session, using free skin grafts. There were 18 (42.8%) male and 24 (57.2%) female patients. The mean age was 70.5 (45–82) years. The mean follow-up period was 40.3 (16–68) months. The mean defect area measured after excision was 8.44 ± 1.91 cm2. After 14 days of delay, the mean defect area was 5.51 ± 1.28 cm2 (34.8% reduction) (p < 0.05). Defect-reduction methods applied during the first session, together with proper interval prior to placement of graft, have been shown to be beneficial and acceptable methods, providing an advantage in reconstruction with free skin graft. Written informed consent was obtained from the patients who participated in this study. Ethics committee approval was received for this study. Publication Date: 16 September 2020 (online) Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

  • Evaluation of significant gene expression changes in congenital and acquired cholesteatoma

    by İsA Kaya, Çığır Biray Avcı, Fetih Furkan Şahin, Neslihan Pınar Özateş, Baha Sezgin, Cansu Çalışkan Kurt, Cem Bilgen, Tayfun Kirazlı

    Etiopathogenesis of acquired and congenital cholesteatoma is still unclear. The clinical behavior of adult acquired, pediatric acquired and congenital cholesteatomas show differences. The scope of the this study was to detect the matrix metalloproteinase (MMP), tissue inhibitors of metalloproteinase (TIMP) and epidermal growth factor receptor (EGFR) gene expression changes in cholesteatoma perimatrix and to compare these changes among congenital cholesteatoma, adult acquired cholesteatoma and pediatric acquired cholesteatoma. A total of 16 genes including MMPs, TIMPs and EGFR were analyzed in the samples of 32 cholesteatoma tissues. Real-time PCR was used for detection of the gene expression levels. Data analyses were achieved by ΔΔCT method (Light Cycler 480 Quantification Software) and Statistical Package for Social Sciences (SPSS) version 22.0. The expression levels of MMP-2, -9, -10, -11, -13, -14, -15, -16 and EGFR genes were significantly higher in acquired cholesteatoma than healthy tissue (p < 0.05). There was a statistically significant decrease (3.34 times more) in the mean TIMP-2 gene expression level in acquired cholesteatoma compared to healthy tissue (p < 0.05). There was a significant increase in the mean expression level of MMP-7 gene and a decrease in the mean expression level of TIMP-1 gene (3.12 times more) in congenital cholesteatoma compared to healthy tissue (p < 0.05). This study indicates that increased expression levels of some particular MMP genes and EGFR gene and decreased expression levels of TIMP genes may play an important role in the development of cholesteatoma. Further, MMP-9, MMP-13 and MMP-14 genes may have a remarkable role in the development of more aggressive cholesteatoma forms. The authors concluded that overexpression of MMP-9, MMP-13 and MMP-14 may cause stronger inflammation associated with cholesteatoma.


  • PI3K/AKT/mTOR pathway and autophagy regulator genes in paranasal squamous cell carcinoma metastasis

    by Cigir Biray Avci, Baha Sezgin, Bakiye Goker Bagca, Halil Bulent Karci, Sercan Gode

    Although there are many studies on the role of PI3K/AKT/mTOR pathway and autophagy genes in the mechanism of head and neck cancer formation and prognostic significance, there is no study investigating the role of the genes in paranasal sinus carcinomas. The aim of the study was to assess the role of the PI3K/AKT/mTOR pathway and autophagy related gene expression changes in squamous cell carcinoma of paranasal sinuses with and without neck metastasis. Eight paranasal squamous cell carcinoma patients (five without and three with neck metastasis) were included. Tissues were obtained during the surgery. Total RNA was isolated from the tissues and cDNA synthesis was performed. Expression levels of the genes were determined using qRT-PCR method. The results were evaluated using the 2−∆∆Ct method, and fold changes of the gene expression levels in primary tumor and neck metastasis tissues were calculated according to the normal tissue. Expression levels of both PI3K/AKT/mTOR pathway and positive regulators of autophagy were significantly increased in metastasis-related two groups, especially in neck metastasis tissues. The increase in PI3K/AKT/mTOR pathway and autophagy related gene expression levels may support the metastatic character in paranasal squamous cell carcinomas. This is the first study to assess autophagy related genes in paranasal sinus cancer at transcriptome-level. Support of the transcriptome-level findings by the further protein analyses will contribute to the illumination of the rare paranasal sinus cancer molecular biology.


  • Oropharyngeal swallowing functions are impaired in patients with naive-achalasia

    by Sezgin Baha, Eyigor Sibel, Durusoy Duygu, Karaoguz Ezgi, Kirazli Tayfun, Bor Serhat

    Background It is generally accepted that achalasia is limited to the pathology of the esophageal body and lower esophageal sphincter. However, patients with achalasia still have symptoms such as aspiration and weight loss after even a succesfull treatment, suggesting that additional oropharyngeal pathologies may be frequent in patients with achalasia. Objective The aim of the study was to assess the oropharyngeal/hypopharyngeal swallowing functions of patients with naive-achalasia. Methods We evaluated the oropharyngeal functions with fiberoptic endoscopic evaluation of swallowing (FEES) and high-resolution manometry (HRM) in 36 patients with naive-achalasia(mean age 47.8 ± 14.7; 20F, 20M) diagnosed with and upper gastrointestinal endoscopy, HRM, radiology compared the results with 40 healthy volunteers (mean age 48.25 ± 12.37; 23F, 17M) as controls. The Beck Depression Inventory (BDI) and the MD Anderson Dysphagia Inventory (MDADI) were used for psychological analysis and to assess quality of life. Results Mean integrated relaxation pressure (IRP) values were significantly higher (12.7 ± 10.9) for all patients compared to controls (0 ± 4.40). In the presence of pharyngeal residue IRP was 18.6 ± 11.8 mmHg compare to patients without pharyngeal residue which was 7.2 ± 6.4 mmHg (p < 0.05). Resting pressures were 105.7 ± 60.4 mmHg in study group vs 116 ± 55.1 mmHg in the control group (NS). In the study group we determined that residues of semisolid and liquid food were significantly higher in the vallecula, retrocricoid region, pharyngeal wall, and piriform sinuses with FEES. The average MDADI score was 58.1 ± 19.8 and 87.6 ± 10.7 in the study and control groups, respectively (p < 0.05). Depression may be significantly higher in achalasia patients based on the BDI. Conclusion Relaxation of the upper esophageal sphincter is insufficient especially in patient with residue. This finding is supported by the presence of residue during FEES evaluation. In the assessment of patients with achalasia, in the presence of residue symptoms,oropharyngeal phases of swallowing should be examined with FEES. Furthermore, the effect of exercises to improve the pathological findings should be evaluated.


  • Open Access

    Objective analysis of swallowing and functional voice outcomes after thyroidectomy: A prospective cohort study

    by Tufan Gumus, Ozer Makay, Sibel Eyigor, Kerem Ozturk, Zeynep Erdogan Cetin, Baha Sezgin, Zeynep Kolcak, Gokhan Icoz, Mahir Akyildiz


    • 27 December 2019

    Oropharyngeal swallowing functions are impaired in patients with scleroderma.

    by Sibel Eyigor, Baha Sezgin, Berna Deniz Kuntman, Gonca Karabulut, Figen Zihni Yargucu, Kerem Ozturk, Tayfun Kirazli


  • The effect of “xanthan gum-based fluid thickener” on hydration, swallowing functions and nutritional status in total maxillectomy patients

    by Baha Sezgin, Duygu Durusoy, Meltem Sezis Demirci, Kerem Ozturk, Isa Kaya, Sibel Eyigor, Sercan Gode

    Swallowing functions are affected after total maxillectomy operations and adjuvant chemoradiotherapy. The purpose of our study is to assess the role of xanthan gum based thickening agents on swallowing and hydration of maxillectomy patients on a randomized controlled fashion.


  • Malignant Otitis Externa: A Retrospective Analysis and Treatment Outcomes

    by Isa Kaya, Baha Sezgin, Sevinc Eraslan, Kerem Ozturk, Sercan Gode, Cem Bilgen, Tayfun Kirazli

    Türk Otorinolarengoloji Arşivi