Serdar Celikkanat
Ankara University
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Featured researches published by Serdar Celikkanat.
Otolaryngology-Head and Neck Surgery | 1997
Fatih R. Balyan; Serdar Celikkanat; Asim Aslan; Abdelkader Taibah; Alessandra Russo; Mario Sanna
Chronic suppurative otitis media (CSOM) without cholesteatoma, the surgical treatment of which is still controversial, is a common diagnosis in otologic practice. A retrospective analysis of 323 patients who underwent surgery for noncholesteatomatous chronic otitis media in the Gruppo Otologica, Piacenza, Italy, between April 1983 and December 1993 is presented. Cases were separated into three groups according to different surgical treatment modalities and conditions of the ears at the time of operation. Group I (n = 53) consisted of cases of CSOM treated by tympanoplasty without mastoidectomy (TLWOM). Group II (n = 28) included cases of CSOM treated by tympanoplasty with mastoidectomy (TLWM). Intact canal wall technique was used in these cases. The ears in both these groups were discharging severely at the time of surgery. Group III (n = 242) included patients whose ears were dry at the time of surgery but who had had previous recurrent episodes of suppuration and who were treated by TLWOM. At the last follow-up, graft success rates for groups I, II, and III were 90.5%, 85.7%, and 89.2%, respectively, and mean residual gaps were 17.2 dB, 20.1 dB, and 19.4 dB, respectively. There was no statistically significant difference between the three groups either on graft success rates (p > 0.05) or on final functional hearing outcome (p > 0.05). TLWM is the preferable treatment modality for most surgeons in noncholesteatomatous CSOM. Nevertheless, in our experience TLWOM yields comparable results for this group of patients. In addition, we could not find any significant difference in results of graft success and final functional hearing rates between dry and discharging ears (p > 0.05).
Otolaryngology-Head and Neck Surgery | 2004
Erdinc Aygenc; Serdar Celikkanat; Mustafa Kaymakci; Ferdi Aksaray; Cafer Ozdem
OBJECTIVE: The purpose of this study was to assess the prophylactic effect of pentoxifylline (Ptx) on complications related to radiation. STUDY DESIGN AND SETTING: Seventy-eight patients who had postoperative radiotherapy for squamous cell carcinoma of the head and neck were enrolled into a prospective study. Patients were randomly assigned to the Ptx group (40 patients) and the control group (38 patients). Ptx was given to the patients at a dose of 400 mg 3 times a day orally to a total of 1200 mg. We noted radiotherapy complications in each group. RESULTS: Four patients were not able to tolerate this drug due to the development of gastrointestinal symptoms and dizziness. Late skin changes, fibrosis, and soft tissue necrosis were more severely in the control group than in the Ptx group (P < 0.05). We could find no positive effects on acute skin reactions and pain (P > 0.05). CONCLUSION: Our study suggests that Ptx has a prophylactic effect on the radiation complications. This can be explained by protective effect of Ptx against vascular pathology. (Otolaryngol Head Neck Surg 2004;130:351–6.)
Otolaryngology-Head and Neck Surgery | 2001
Erdinc Aygenc; Adin Selcuk; Serdar Celikkanat; Cem Ozbek; Cafer Özdem
OBJECTIVE: Helicobacter pylori can cause chronic infection that has been linked to the development of both benign and malignant disease of the aerodigestive tract. The purpose of this study was to determine the link between H pylori infection and squamous cell carcinoma of the larynx (SCCL). METHODS: We estimated the presence of IgG antibodies against H pylori antigens by using ELISA technique in the sera of 26 patients with SCCL and 32 matched controls without carcinoma of the larynx. RESULTS: The incidence of seropositivity of patients with SCCL was 73.07% and of controls was 40.62%. These data support an etiologic role for H pylori infection on development of SCCL (χ 2 = 4.85, P < 0.05). CONCLUSION: H pylori infection of the upper aerodigestive tract might result in mucosal disruption, allowing for subsequent transformation by known carcinogens such as tobacco and alcohol.
Otolaryngology-Head and Neck Surgery | 1995
Serdar Celikkanat; Essam Saleh; Ahmad Khashaba; Abdelkader Taibah; Alessandra Russo; Antonio Mazzoni; Mario Sanna
Cerebrospinal fluid leakage is the most common complication of translabyrinthine acoustic neuroma surgery. This retrospective study reviews patients who had translabyrinthine acoustic neuroma surgery at the Gruppo Otologico, Piacenza, Italy, and ENT Department of Bergamo General Hospital, Bergamo, Italy, during the last 6 years. The incidence of postoperative cerebrospinal fluid leakage was 6.2%, and 75% of these patients underwent another surgery to control the cerebrospinal fluid leakage. A modification of translabyrinthine approach was used in patients with highly pneumatized temporal bones to prevent cerebrospinal fluid leakage in these high-risk patients.
Annals of Otology, Rhinology, and Laryngology | 1997
Can Koc; M.Umut Akyol; Ali Çekiç; Serdar Celikkanat; Cafer Özdem
Treatment of squamous cell carcinoma of the lip is primarily surgical. Unlike other oral lesions, lower lip cancers do not metastasize to lower cervical lymph nodes without invading submental and submandibular lymph nodes. This study presents 30 patients with NO lower lip carcinoma who were treated by en bloc resection of the tumor with suprahyoid neck dissection. Occult metastasis was found in 4 patients (13%). Four patients, 3 of whom had no occult metastases, died of local or regional uncontrollable disease. Suprahyoid or modified radical neck dissection appears to be beneficial, even in small tumors of the lower lip, in detecting occult metastases.
Otolaryngology-Head and Neck Surgery | 2001
Erdinc Aygenc; Serdar Celikkanat; Hasan Bilgili; Ferdi Aksaray; Sibel Orhun; Mustafa Kaymakci; Cafer Özdem
Soft tissue damages after radiotherapy are an uncommon but serious complication. Late damage after radiation is the principal dose-limiting factor in radiation therapy today and is dependent on vascular pathology as a result of radiation. Pentoxifylline is a methylxanthine derivative that produces dose-related improvement in blood flow, lower blood viscosity, improved erythrocyte flexibility, and increased tissue oxygen levels. An agent that increases blood flow and tissue oxygen content may contribute to enhanced healing of soft tissue pathology. Sixteen adult New Zealand rabbits were separated into 2 groups and inspected for 30 weeks after radiation. We noted acute and chronic reactions and pathologic changes in different regions of the head and neck of rabbits. The prophylactic administration of pentoxifylline in the postirradiation period can reduce late soft tissue pathology, but it does not affect acute radiation reactions.
Otolaryngology-Head and Neck Surgery | 1997
Serdar Celikkanat; Mehmet Umut Akyol; Can Koc; Selim Ölçer; Serdar Ensari; Suat Turgut; Cafer Özdem
Postoperative hypertension after radical neck dissection was detected in 20.2% of 109 neck dissections in our department between 1989 and 1993. It was probably caused by carotid sinus denervation and appeared after the vasodilation generated by anesthesia had subsided. If postoperative hypertension was encountered after the first operation, the risk of such hypertension after surgery on the contralateral side significantly increased.
Otolaryngology-Head and Neck Surgery | 2004
Cem Ozbek; Serdar Celikkanat; Kaan Beriat; Ali Uluoglu; Cafer Ozdem
M icrocystic adnexal carcinoma (MAC) is an uncommon cutaneous neoplasm known by a variety of names, including combined adnexal tumor of the skin, sclerosing sweat duct carcinoma, microcystic carcinoma, sweat gland carcinoma with syringomatous features, and malignant syringoma. It is an aggressive, locally destructive cutaneous neoplasm with a high rate of recurrence if incompletely excised. It can be clinically and histologically confused with other malignant and benign cutaneous neoplasms, leading to inadequate initial treatment and extensive recurrences. A case of an external ear canal MAC extending into the middle ear in a 22-year-old -patient, the first described case of this tumor in external ear canal, is discussed.
European Archives of Oto-rhino-laryngology | 2011
Rıza Önder Günaydın; Erdinc Aygenc; Selma Karakullukcu; Fatih Fidan; Serdar Celikkanat
Otolaryngology-Head and Neck Surgery | 1997
Suat Turgut; Serdar Ensari; Hüseyin Katirci; Serdar Celikkanat