Person: DEMİR, UYGAR LEVENT
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DEMİR
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UYGAR LEVENT
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Publication A novel approach to crooked nose in rhinoplasty: Asymmetric level osteotomy combined with unilateral spreader graft(Lippincott Williams & Wilkins, 2019-07-01) Demir, Uygar Levent; DEMİR, UYGAR LEVENT; Uludağ Üniversitesi/Tıp Fakültesi/Kulak Burun Boğaz ve Baş Boyun Cerrahisi Anabilim Dalı; CNQ-7672-2022The crooked nose is certainly among the most difficult to treat deformities for rhinoplasty surgeons. This deformity is a complex problem because each structural nasal component can be effected and they may be asymmetric bilaterally. Despite the use of sophisticated techniques and an additional effort, unfortunately the long-term aesthetic results may not be perfect with some minor flaws. Here in this study, the authors introduce a new technique that is used to correct crooked nose deformity. Sixteen consecutive patients who underwent open approach rhinoplasty by the same senior author between January 2015 and January 2018 with the diagnosis of C-shaped, reverse C-shaped, and I-shaped crooked nose deformity were included. The authors performed low-to-low lateral osteotomy with transverse root osteotomy to concave side (wider side) and low-to-high osteotomy to convex side (narrower side) combined with a unilateral spreader graft to concave side. Frontal images were taken preoperatively and 6 months postoperatively to use for further assessments. The authors compared the preoperative deviation angle values at rhinion (RDA) and at nasal tip (tip deviation angle) with postoperative values. In the study group, RDA value showed significant decrease after surgery; the preoperative RDA value was 6.2 degrees (1.66 degrees-16.39 degrees) and it was calculated as 2.44 degrees (0.7 degrees-5.77 degrees) with P<0.001 postoperatively. The changes at tip deviation angle were also significant (P<0.001) and tip deviation was successfully decreased from a value of 5.08 degrees (2.8 degrees-10.62 degrees) to 2.13 degrees (0.5 degrees-6.6 degrees) postoperatively. In conclusion, this study offers a new and effective technique to correct crooked nose deformity that can be used safely with satisfying aesthetic results.Publication Treatment outcomes for primary retromolar trigone carcinoma: A single institution experience(Galenos Yayıncılık, 2020-04-09) Demir, Uygar Levent; Yanaşma, Halide Öztürk; DEMİR, UYGAR LEVENT; ÖZTÜRK YANAŞMA, HALİDE; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Kulak Burun Boğaz Anabilim Dalı.; 0000-0002-9590-1420; 0000-0001-8544-6674; CNQ-7672-2022; EFV-2180-2022Objective: Retromolar trigone (RMT) is a rare location for oral cavity cancers. RMT cancers are aggressive malignancies that mostly present at an advanced stage. In this study, we aimed to evaluate treatment outcomes in patients who underwent initial radical surgical resection and postoperative radiotherapy or chemoradiotherapy with a diagnosis of primary RMT squamous cell carcinoma in our institution.Methods: The study included 20 primary RMT tumor patients out of 191 oral cavity cancer cases treated from January 2010 through December 2019. We retrospectively analyzed treatment details, histopathology reports, postoperative clinical course and survival outcomes.Results: The mean age at presentation was 59.4 years. Eighty percent of all patients were either stage 3 or stage 4. We performed mandibular resection in 14 patients (70%) and partial maxillectomy in eight patients (40%). Nineteen patients (95%) underwent unilateral neck dissection. The incidence of metastatic cervical lymph node was 13/20 (65%). Overall survival (OS) and disease-free survival (DFS) rates during follow-up (mean 26.3 months) were 60% and 75%, respectively. There was statistical significance between presence of multilevel metastatic lymph nodes and OS (p=0.013). DFS and OS of early stage and advanced stage groups were 100% vs 75% and 100% vs 50%, respectively, with no statistical significance (p=0.189 and p=0.084).Conclusion: The survival of advanced stage RMT cancer is poor despite appropriate treatment. Bone involvement that necessitates resection is common due to the proximity of the tumor to the mandible and the maxilla. Multilevel positive cervical lymph nodes and advanced stage are poor prognostic factors.Publication Comparison of clinical results in nasal tip augmentation either via face to face or back to back technique with autogenous auricular conchal cartilage(Lippincott Williams & Wilkins, 2015-06-28) Şahin, Murat Sertan; Kasapoğlu, Fikret; Demir, Uygar Levent; Özmen, Ömer Afşin; Coşkun, Hakan; Basut, Oğuz; Sahin, Murat Sertan; KASAPOĞLU, FİKRET; DEMİR, UYGAR LEVENT; ÖZMEN, ÖMER AFŞIN; COŞKUN, HAMDİ HAKAN; BASUT, OĞUZ İBRAHİM; Uludağ Üniversitesi/Tıp Fakültesi/Kulak Burun Boğaz Cerrahisi Anabilim Dalı.; 0000-0002-4718-0083; 0000-0002-9698-0546; 0000-0002-0881-1444; A-1452-2019; AAI-3877-2021; BBC-2978-2021; CNQ-7672-2022; DVC-7511-2022; CFJ-8210-2022Objective:To compare the objective and subjective findings between patients who underwent nasal tip augmentation surgery via two different methods using autogenous auricular conchal cartilage.Materials and Methods:This study included the data of 21 patients who underwent nasal tip augmentation surgery. The patients were randomly divided in two groups according to the technique used to form a double layer columellar strut graft; either face to face (group 1) and back to back (group 2). All patients were assessed via nasal obstruction symptom evaluation scale (NOSE) and via acoustic rhinometry and rhinomanometry at preoperative and postoperative 1st and 6th months.Results:There was statistically significant improvement in symptom score in both patient groups with no difference inbetween. Total nasal resistance decreased nonsignificantly at the end of 6th month in both groups; 13.1Pa/cm(3) to 8.6Pa/cm(3) and 10.3Pa/cm(3) to 9.5Pa/cm(3) respectively. There was no significant increment in MCA values for both groups except left MCA1.Conclusions:We achieved good results in tip augmentation via both techniques. An autogenous conchal cartilage is a good alternative to replace lacking caudal septal cartilage. It provides safe and stable support to the nasal tip. However, further comprehensive studies with larger sample size and long follow-up are required to elucidate any difference between these two techniques.