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Biomedical subjects

P Dobrzyński

Publications and source records attributed to P Dobrzyński.

17 recordsLinked to original sources
PubMed1999

[Tumors of the parotid glands in the material of the Department of otolaryngology of the Medical Academy in Warsaw in 1986-1995].

In the Department of Otolaryngology, Medical Academy in Warsaw, 332 patients were surgically treated between 1986 and 1995 because of parotid gland tumors. In 275 cases benign tumors, in 57 cases--malignant tumors were observed. The majority of benign tumors were pleomorphic adenoma (61.45%) and lymphadenoma (22.54%); the majority of malignant tumors were adenocarcinoma (28%), adenoid cystic carcinoma (21%), mucoepidermoid carcinoma (15.78%). All patients with benign tumors were surgically treated, patients with malignant tumors were operated on and irradiated. The surgical procedure used superficial parotidectomy and total parotidectomy with preservation of facial nerve where possible. Ten patients required total parotidectomy with facial nerve resection because of malignant tumors, six patients had neck dissection performed. Of the 57 patients treated on account of malignant tumors 43 survived; 14 patients died of a local recurrence or generalization neoplasm disease.

Academic Medical Centers↗
PubMed1998

[Auditory brainstem responses in the diagnosis of retrocochlear hearing loss: selected case reports].

In this study, four cases of patients with retrocochlear hearing loss are presented (acoustic neuroma, cerebellopontine angle tumour, the fourth ventricle region tumour, inflammatory or vascular lesions in the fourth ventricle region). Standard audiometric tests, auditory brainstem response and radiological examinations such as CT scan and MRI were performed in all patients. The abnormal ABR observed in all cases suggested retrocochlear hearing loss. The presence of retrocochlear disorders was confirmed by CT or MRI. The analysis of presented cases showed that the abnormal ABR results should be a sufficient basis for referring the patient to MRI examination.

Adult↗
PubMed1996

[Subglottic tracheal stenosis in Wegener's granulomatosis. Report of 3 cases].

We describe a 3 patients with Wegener's granulomatosis in remission while taking cyclophosphamide and prednisone who developed upper airway obstruction. The diagnosis was confirmed by parotid gland, pharynx, kidney biopsy. The stenosis developed in the area of previously noted tracheal ulceration and responded satisfactorily to bronchoscopic dilatation. Tracheotomy for progressive upper airway obstruction has remained the mainstay of treatment and was necessary in one of cases. We presented the others techniques of treatment subglottic stenosis-the surgical intervention and carbon dioxide laser photoresection. No antineutrophil cytoplasmic antibodies were found in the patients serum. These antibodies are of auxiliary value in recognizing Wegener's granulomatosis as well as in monitoring the activity of the disease process.

Adult↗
PubMed1996

[Difficulties with diagnosing Wegener's granulomatosis].

The authors presents 14 cases Wegener's granulomatosis diagnosed in ORL Clinic in Warsaw. Localisation of the disease, clinical manifestation and difficulties of histopathological examination was described, emphasizing the role of ANCA test (antineutrophil-cytoplasm antibodies).

Adult↗
PubMed1995

[Glandular ear neoplasms].

A case of ceruminoma was described. The authors also presents actual opinions about glandular tumors of the middle and external ear, their classification and treatment.

Adult↗
PubMed1995

[Glioma of the ethmoid].

The authors presented a case of ethmoid glioma which had performed as nasal polyp. They also discussed about problems of classification and treatment this type of neoplasm.

Adult↗
PubMed1995

[Parapharyngeal space tumors, diagnostic and treatment problems].

The parapharyngeal space, an area of complex anatomic relationships, is involved in a wide variety of benign and malignant neoplasms. This paper reported in managing 16 patients with parapharyngeal primary tumors. The cervical approach as surgical treatment was used in whole group. Recurrent tumors accounted for 4 of 16 cases. Discussion of the indications, surgical technique and select points to using this operative procedure is based on operative experience gained from these 16 patients.

Adult↗
PubMed1991

[Wegener's granulomatosis. The value of correct diagnosis and treatment].

Two cases of Wegener's granulomatosis are presented. The first case due to improper diagnosis died five months following initial clinical symptoms. The second case was diagnosed basing on clinical findings. Cyclophosphamide produced a quick and full remission. Both cases illustrate the need of proper diagnosis and introduction of treatment.

Adult↗
PubMed1991

[Examination of reaction time--auditory brainstem responses--ABR in noise induced temporary and permanent threshold shift].

This study was conducted to investigate the differences between auditory brainstem responses--ABR recorded in men with temporary or permanent threshold shifts (TTS or PTS). Behaviorally, the tested ears showed insignificant differences in the hearing thresholds at frequencies in the range 0.25-8 kHz. The latency of waves I, III, V and interwave intervals I-III, III-V, I-V were analysed as functions of stimulus intensity. The comparisons between recordings obtained in groups with TTS and PTS showed significant differences in latencies of wave V at 90 dB nHl only. The latencies of waves I, III and interwave intervals were unaltered.

Adult↗
PubMed1988

[Evaluation of the effect of auditory fatigue on the human ear by auditory brain stem responses (ABR). I. Effect of auditory fatigue on temporary threshold shifts of ABR].

The effects of auditory fatigue on auditory brainstem responses (ABR) were investigated in 23 normal-hearing subjects. ABR was recorded before and after exposure to fatiguing noise. Behaviourally, the auditory fatigue was tested using a temporary threshold shifts (TTS) paradigm. The latency of waves I, III, V and interwave intervals I-III, III-V, I-V were analysed as functions of stimulus intensity. In post-exposure recordings a threshold elevation, significant increase of all waves latency, increase of interwave-interval III-V at 40,50,60 dB nHL and unaltered intervals I-III, I-V were observed.

Adult↗
PubMed1988

[Evaluation of the effect of auditory fatigue on the human ear based on the measurement of brain stem auditory potentials (ABR). II. Relation of temporary auditory threshold shift and changes in the latency of wave V].

The relationship between temporary threshold shift (TTS) and latency changes of auditory brainstem responses (ABR) induced by noise exposure was studied in 23 normal-hearing subjects. Shift in latency wave V at 40 dB nHL of stimulus intensity as a result of auditory fatigue showed no significant correlation with TTS at 4 kHz. The great intersubject variability of shifts in latency wave V as a result of auditory fatigue suggests that this shift may be a useful measure of individual susceptibility to noise.

Acoustic Stimulation↗