Biomedical subjects

J V Segas

Publications and source records attributed to J V Segas.

5 recordsLinked to original sources

PubMed2001

How significant is sensorineural hearing loss in primary Sjögren's syndrome? An individually matched case-control study.

OBJECTIVE: We evaluated whether sensorineural loss and vestibular abnormalities are common in patients with primary Sjögren's syndrome (pSS) and whether such abnormalities are clinically significant. METHODS: In an individually matched case-control design, 48 patients with pSS underwent complete audiovestibular evaluation along with 48 age and sex matched individuals without otologic problems. Differences of > 20 dB between patient and control ears at any frequency tested were considered to be significant. RESULTS: Significant differences in hearing loss were seen at 4,000 Hz (6 vs 0 ears; p = 0.03) and at 8,000 Hz (9 vs 0 ears; p = 0.003). Small differences in hearing acuity were also observed in the lower frequencies, but the absolute mean difference was < 3 dB. A decrease of at least 60 dB in hearing acuity at any frequency up to 4,000 Hz was seen only in 3 elderly pSS patients. Abnormal brainstem auditory evoked responses were recorded in 7 patients and 5 controls, but no patient had retrocochlear lesions identified on magnetic resonance imaging. Four patients in each group had abnormalities on electronystagmography. CONCLUSION: pSS is associated with sensorineural hearing loss affecting preferentially the high frequencies, but clinically significant defects are not common. There is no evidence of retrocochlear disease or increased vestibular involvement in pSS.

Aged↗

PubMed2001

A neurilemmoma of the parotid gland: report of a case.

Benign primary tumors of the facial nerve are frequently misdiagnosed because of the variety of their clinical manifestations. Much attention has been paid to neurilemmomas in the recent otolaryngologic literature, but far less has been focused on intraparotid facial nerve neurilemmomas. In this article, we describe a new case of this truly rare tumor, and we review its diagnosis, pathology, and treatment.

Adult↗

PubMed2001

A novel technique in the operative treatment of pyriform sinus carcinoma.

Pyriform sinus carcinoma is a highly malignant carcinoma of the head and neck region as a result of its location and its potential for metastatic spread. Decisions regarding the operative procedure remain very difficult. In this paper, we present a modified partial laryngo-pharyngectomy in which, following extended vertical laryngectomy. the cancerous mass is removed from the involved pyriform sinus and the remaining hypopharynx is reconstructed by using the preserved outer perichondrium of the resected thyroid cartilage. This technique has been applied with adequate success during the last five years in five cases in our department. It is indicated when a pyriform sinus carcinoma does not extend to the pyriform apex and does not involve the anterior and posterior laryngeal commissures, paraglottic space, retrocricoid region and posterior pharyngeal wall beyond the midline. All patients treated were male and middle-aged. Our technique appears to be a reliable alternative for the operative treatment of pyriform sinus carcinoma.

Aged↗

PubMed2000

Treatment of nasal polyposis in Byzantine times.

The goal of this study was to describe the therapeutic methods and surgical techniques used during Byzantine times (AD 324-1453) for a disease that has occupied physicians since antiquity: nasal polyps. The original Greek-language texts of the Byzantine medical writers, most of which were published after the 17th century, were studied in order to identify the early knowledge of the definition, symptoms, conservative treatments, and surgical intervention in cases of this disease. A considerable number of conservative treatments, etiologic and local (with inunctions or blowing of caustic substances), with evident influence from Roman medicine, were identified even in the early Byzantine medical texts (4th century). Further, some surgical techniques were described that seem to constitute evolution of the Hippocratic tradition. From the study of the original texts of Byzantine medical writers, their interest in the rhinological diseases is evident; in the case of nasal polyps, new techniques were mentioned. The first meticulous intranasal surgical removal of polyps was described. These techniques, obviously developed during the Hellenistic period, initially influenced European medicine and later the rest of the world.

Byzantium↗

PubMed1997

Auditory function in young patients with chronic renal failure.

Debate on the relationship between renal insufficiency and hearing loss continues mainly due to the advanced age and the possible accelerated presbycusis of the patients that have been studied in surveys. Hearing acuity was studied in 46 children and adolescents suffering from renal insufficiency. Sensorineural hearing loss (mainly high-frequency) of unknown cause was found in 14 patients (30.4%). Hearing loss was not influenced by the various haematological, biochemical and clinical parameter (type of renal disease, blood pressure, history of ototoxic drugs administration). However, hearing loss seemed to be affected by the method of management of the renal insufficiency (more in the haemodialysis group than in the peritoneal dialysis group). There were no significant changes in audiometric findings before and after haemodialysis.

Adolescent↗