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Biomedical subjects

Levent Olgun

Publications and source records attributed to Levent Olgun.

9 recordsLinked to original sources
PubMed2006

[Evaluation of dysphonia in partial laryngectomy patients].

OBJECTIVES: The purpose of this study was to research and compare the affects of cordectomy, frontolateral laryngectomy or cricohyoidopexy techniques over voice parameters prospectively. PATIENTS AND METHODS: Fifty-six larynx cancer patients (56 males; mean age 59; range 48 to 71 years) whom cordectomy, frontolateral laryngectomy or cricohyoidopexy was applied in S.B. Izmir Training Hospital were included in this study. In the subjective evaluation of the patients voices and RBH scoring, in the aerodynamic evaluation, MPT measurements and in the objective evaluation computerized voice analysis was used. In calculating the dysphonia severity index (DSI), this formula (DSI=0.13xMPT+0.0053xF0 (high)-0.26xI (low)-1.18x jitter (%)+12.4) was used. RESULTS: In the subjective (RBH) evaluation of voices of these three group of patients and their DSI scores, there wasn't any statistically differences among them. When arytenoidectomized patients were evaluated as a separate group, this procedure was found not to have a significant impact over DSI. CONCLUSION: From phoniatric point of view, there wasn't any difference of cordectomy, frontolateral laryngectomy or cricohyoidopexy techniques over voice.

Adult↗
PubMed2006

[The effect of cochlear implantation on voice development].

OBJECTIVES: The effect of cochlear implantation on voice development in prelingually deaf children was investigated. PATIENTS AND METHODS: The study included 60 prelingually deaf children (28 girls, 32 boys; mean age 68 months; range 37 to 128 months) who underwent cochlear implantation. Voice analyses were made between 6 to 21 months after the first fitting and six months after the baseline. The patients were divided into two groups (i) according to age (younger or older than 48 months) and (ii) to the duration of implant use (more or less than 18 months) to observe the changes in fundamental frequency (F(0)), and two formant frequencies (F(1) and F(2)). Forty-seven children (22 girls, 25 boys; mean age 62 months; range 38 to 118 months) with normal speech and language development comprised the control group. In all the cases, F(0), F(1), and F(2) values of the vowel /a/ were studied. RESULTS: In the patient group, F(0) and F(2) values significantly differed between the first and second voice analyses, whereas the change in F(1) values was insignificant. No significant differences were found in terms of F(0), F(1) and F(2) values between the patients younger than 48 months and age-matched controls; however, F(0) and F(1) values significantly differed in those older than 48 months while F(2) values remained insignificant. Albeit statistically insignificant, F(0), F(1), and F(2) values approximated normal levels in children in whom the duration of implant use exceeded 18 months. CONCLUSION: Our study confirms that early cochlear implantation and longer implant use result in improved development of voice, speech, and language.

Case-Control Studies↗
PubMed2005

Local anesthesia for middle ear surgery.

The adequacy of anesthesia and comfort during surgery was assessed for 100 consecutive patients undergoing middle ear surgery using local anesthesia, both by the patients themselves and by the surgeon. The possibility of inducing an iatrogenic facial weakness was also evaluated. Both the surgeon and the majority of patients were pleased with the quality of anesthesia and little adverse effects occurred as a consequence of local anesthesia itself.

Adolescent↗
PubMed2005

Cochlear implantation in chronic otitis media.

Chronic otitis media (COM) patients who had a multichannel device implanted were evaluated regarding surgical problems and technical modifications. In a multicentric study, implantees whose aetiology was COM were retrospectively evaluated. Patients were operated on and evaluated at three different tertiary referral centres: SSK Izmir Hospital Cochlear Implantation (CI) Center (32 cases), Istanbul Marmara University ENT Clinic (six cases), Eskişehir Anadolu University CI Center (one case). Thirty-nine implantees were evaluated with respect to surgical problems, technical modifications, complications and hearing results. All patients had lost their hearings as a result of COM. Three out of 39 cases were children. Thirty-seven of the patients either had a radical cavity or ear converted to radical at the first stage or concomittantly with the implantation. Patients were evaluated in order to find out the best possible surgical solutions to specific problems caused by COM. In seven cases electrode array disrupted the epithelial lining of the cavity despite specific measures. Five of those cases were re-implanted, passing the electrode array through a tunnel under the facial nerve. Seven recent cases were also implanted with the same subfacial route. In all patients but one, satisfactory hearing results were achieved one to five years after implantation (SDS scores with monosyllabic word list were between 59 and 89 per cent, median 67.4 per cent). CI in COM patients necessitates technical modifications. In radical cavities subfacial implantation seems to be a good solution for the protection of the electrode array.

Adolescent↗
PubMed2005

[Long-term results of functional surgery for attic cholesteatoma].

OBJECTIVES: We evaluated the long-term results of functional surgery for attic cholesteatoma. PATIENTS AND METHODS: In this study, we presented the results of 81 patients (42 males 39 females; mean age 34 years; range 8 to 59 years) who underwent functional surgical techniques for attic cholesteatomas between January 1992 and January 1998. All the patients were followed-up for at least five years. RESULTS: For eradication of attic cholesteatoma, canal wall-down technique tympanoplasty was required in the majority of the patients. After surgery there was a statistically significant hearing improvement in all but four cases. In the postoperative period, residual cholesteatoma and graft perforation were found in five and six patients, respectively. Two patients required revision meatoplasty for problems related with cavity clearance. CONCLUSION: Apart from satisfactory hearing improvement with functional surgery, a successful self-clearance was obtained in mastoid cavities with saucerization and meatoplasty. Canal wall-down tympanoplasty is associated with very low incidences of residual or recurrent cholesteatoma in the majority of patients.

Adolescent↗
PubMed2004

Non-Hodgkin's lymphoma of the nose and paranasal sinuses: a case report.

Primary non-Hodgkin lymphoma (NHL) of the nasal cavity is a rare neoplasm. They account for about 0.17-2% of all cases of NHL and 5.8% of all malignant neoplasms of the sinonasal region in adults. A 37-year-old male patient presented with left-sided nasal obstruction and headache which appeared a couple of weeks before the admission. Nasal examination revealed a massive polyposis. After medical therapy with corticosteroids, neither the polyposis nor his complaints showed regression; thus, he underwent a nasal polypectomy operation. Biopsy results indicated an inflammatory nasal polyp. Two weeks later, a rapidly progressive facial swelling, especially in the left periorbital area and blurred vision occurred. Second biopsy, which was also taken from the left nasal cavity suggested again an inflammatory nasal polyp. To rule out any possible malignancy, a third biopsy was conducted in the left maxillary sinus which indicated T/NK cell lymphoma of the sinonasal tract.

Adult↗
PubMed2003

External laryngeal trauma.

Compared to internal laryngeal trauma caused by endolaryngeal procedures, trauma to the larynx caused by external forces is relatively rare. It has been incidence of 1 in every 22,900 emergency room visits. Rapid evaluation and protection of the airway are critical. A history of a cervical trauma with signs of hoarseness, difficulty breathing and pain should always alert the emergency physician to the possibility of laryngeal injury.

Adult↗
PubMed2003

Causes of dysphonia in patients above 60 years of age.

OBJECTIVES: We evaluated the causes of hoarseness in patients above 60 years of age. PATIENTS AND METHODS: The study included 98 patients (40 females, 58 males; mean age 64 years; range 60 to 77 years) who presented with hoarseness. All the patients were examined by videolaryngoscopy. Temporary hoarseness secondary to respiratory tract infections was excluded. RESULTS: The most common cause of hoarseness was benign vocal fold lesions (28.6%) followed by malignant lesions (27.6%), vocal fold paralysis (25.5%), functional dysphonia (10.2%), and presbyphonia (8.2%). Laryngopharyngeal reflux was found in 13 patients (13.3%). Fourteen male and 11 female patients had paralysis of the recurrent laryngeal nerve. Malignancies that caused hoarseness without paralyzing the vocal folds were larynx carcinoma (n=18), hypopharynx carcinoma (n=8), and multiple malignancy (n=1). CONCLUSION: Our data show that dysphonia develops due to disease processes associated with aging rather than to physiologic aging alone. Considering adverse influences of dysphonia on the quality of life of elderly population, efforts should be directed to elucidation of the cause and to performing appropriate treatment.

Age Factors↗