Browsing by Author "Koc, Eltaf Ayca Ozbal"

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Comparison of Clinical Outcomes Using A Piezosurgery Device vs. A Conventional Osteotome for Lateral Osteotomy in Rhinoplasty
(2017) Koc, Bulent; Koc, Eltaf Ayca Ozbal; Erbek, Selim; https://orcid.org/0000-0003-4825-3499; 28846787; HSB-4814-2023; B-7604-2019
Our aim for this study was to evaluate and compare the clinical outcomes in patients who underwent lateral osteotomy with a Piezosurgery device or a conventional osteotome in open-technique rhinoplasty. This cohort trial involved 65 patients (36 women and 29 men; average age: 23.6 +/- 5.71 yr) who,underwent surgery between May 2015 and January 2016. Piezosurgery was used for lateral osteotomy in 32 patients, whereas 33 patients underwent conventional external osteotomy. These 2 groups were compared for duration of surgery, perioperative bleeding, postoperative edema, ecchymosis, pain, and patient satisfaction on the first and seventh postoperative days. The Piezosurgery group revealed significantly more favorable outcomes in terms of edema, ecchymosis, and hemorrhage on the first day postoperatively (p < 0.001 for all). Similarly, edema (p = 0.005) and ecchymosis (p < 0.001) on the seventh postoperative day also were better in the Piezosurgery group. Hemorrhage was similar in both groups on the seventh postoperative day (p = 0.67). The Piezosurgery group not only experienced less pain on the first postoperative day (p < 0.001), but these patients also were more satisfied with their results on both the first and seventh postoperative days. Results of the present study imply that Piezosurgery may be a promising, safe, and effective method for lateral osteotomy, a critical step in rhinoplasty. The time interval necessary for the learning curve is counteracted by the comfort and satisfaction of both patients and surgeons.
Effects of Septoplasty on Speech and Voice
(2014) Koc, Eltaf Ayca Ozbal; Koc, Bulent; Ercan, Ibrahim; Kocak, Ismail; Tadihan, Elcin; Turgut, Suat; 24321591
Objectives. The aim of this study was subjective and objective evaluation of changes in acoustic features of voice before and after septoplasty surgery. Study Design. Prospective. Methods. Twenty patients scheduled for septoplasty procedure were included in the study. Before and 1 and 3 months after septoplasty surgery, acoustic analysis were performed. The recordings of /a/ vowel were used to evaluate average fundamental frequency (F-0), Jitter percent, and Shimmer percent. In spectrographic analyses, F3-F4 values for the vowels /i, e, a, o, and u/, nasal formant frequencies of the consonants /m/ and /n/ in the word /mana/, and four formant frequencies (F1, F2, F3, and F4) for nasalized /a/ vowel following a nasal consonant /n/ in the word /mana/ were compared. For the perceptual evaluation, the patients were asked to read the Turkish "Dere'' passage. The differences in nasal resonance and subjective evaluations were rated. Results. A statistically significant change was not observed in F-0 (P = 0.307), Jitter (P = 0.919), and Shimmer (P = 0.024) values measured before and after the operation for vowel /a/. Nasal formants measured before and after the operation for nasal formant /m/ and nasal formant /n/ in the word /mana/, which contains nasal consonants, and nasalized vowel /a/, which comes after a nasal consonant, did not differ statistically significant (P = 0.096 and P 0.034, respectively). Comparisons among F1, F2, F3, and F4 values did not reveal a statistically significant change for nasalized vowel /a/, which comes after a nasal consonant in the word /mana/. Conclusions. Our study shows that a complete therapeutic approach to patients affected by nasal septum deviation do not reveal significant voice abnormalities.
Parotid Gland Primary Amelanotic Malignant Melanoma
(2016) Koc, Eltaf Ayca Ozbal; Ertugay, Cigdem Kalaycik; Altaner, Semsi
Amelanotic malignant melanoma (AMM) represents only 2%-8% of all malignant melanomas, and primary AMM of the parotid gland is very rarely diagnosed. This is the second case of primary AMM of the parotid gland in the literature. The aim of this report is to discuss our case and this rare entity. The detection of AMM is very complex because the pathology results can be confused with those for inflammatory processes and benign and malignant tumors. Immunohistochemical analysis of S100 protein and human melanoma black 45 (HMB45) analysis provides guidance in the differential diagnosis of AMM. In this report, we present a rapidly growing amelanotic malignant melanoma in the parotid gland. Examination of the patient and radiological studies showed no other lesions.
A Rare Presentation of Langerhans Cell Histiocytosis Tonsil Infiltration: Review of the Literature: Atypical Presentation of Langerhans Cell Histiocytosis
(2014) Atalay, Figen; Koc, Eltaf Ayca Ozbal; Yildiz, Semsi; 25332640
Langerhans cell histiocytosis (LCH) is a rare disease that can infiltrate various organs. LCH presents with solitary organ involvement or as a multi-system disease. We present a patient who has tonsillary infiltration with LCH. A 74 year-old Caucasian male was admitted for swelling of the neck and difficulty swallowing for 3 months. Physical examination showed submandibular lymph node enlargement of approximately 3 cm and tonsil enlargement. A tonsillectomy and excisional biopsy of the lymph node were done. Histiocyte-like cell infiltration was seen in the tonsil biopsy. CD3, CD20, CD15, CD30, CD5, CD138, Lambda, Kappa, Bcl-2, ALK, CD23, CD10, Bcl-6, keratin, EMA, HMB-45, and Cyl D1 were negative. CD68, S-100, CD1a, and fascin were positive, and the Ki-67 proliferation index was 20 % in immunocytochemical staining. The most commonly infiltrated bones are the skull, femur, lower jaw, pelvis, and vertebrae in LCH. Oral or perioral lesions are present in 30 % of cases. Oral lesions most often involve bone loss, unexpected tooth loss, and gum inflammation. We administered oral prednisolone to our patient due to the presence of lytic lesion of the bone, mild anemia and a higher sedimentation rate, which was from a separate, explained cause. Isolated tonsillar involvement in adult LCH was reported in only 2 cases in the literature. There is no standard recommendation for treatment. Our patient responded well to steroid therapy.