[Surgery of multinodular goiters].
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Biomedical subjects
Publications and source records attributed to S Abdul.
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The authors report a series of 43 cases of cerebello-pontine angle tumours operated by an oto-neuro-surgical team. The approaches used were, once the supra-petrous approach, twice the posterior fossa, 12 times a combined trans-labyrinthine and posterior fossa approach, and 28 times the enlarged trans-labyrinthine route. This last approach, which is now being used exclusively for the last two years, is described in detail. Forty-three tumours operated on broke down into 40 neurinomas, 2 meningiomas and 1 malignant melanoma. The size of the tumours varied from 1 cm to 11 cm in diameter. Overall statistics show 9.3% of deaths and 65% of functioning facial nerves. The statistics for the nelarged trans-labyrinthine route (the last 28 cases) are: 10.7% of deaths and 75% of functioning facial nerves. In the enlarged trans-labyrinthine route, there is no complication and no mortality in the small and medium-sized tumours, i.e. up to 4 cm in diameter.
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The objective of this study was to assess the performance of cervical impedance spectroscopy in the detection of cervical intraepithelial neoplasia (CIN) using the new MKIII impedance probe. A prospective observational study recruited women referred to colposcopy with an abnormal Papanicolaou smear. A pencil probe incorporating four gold electrodes was used to measure electrical impedance spectra from cervical epithelium. Colposcopy examinations, including probe positioning, were video recorded to allow for correlation between results obtained from colposcopic impression, histopathologic examination of colposcopic punch biopsies, and impedance measurements. Cervical impedance-derived parameters R, S, R/S, C, and Fc were assessed to see if significant difference in values obtained in CIN and normal epithelium existed. The performance of the probe in identifying women with CIN was also assessed. One hundred seventy-six women were recruited and 1168 points analyzed. Parameters R, S, and Fc showed significant separation of CIN or squamous intraepithelial lesion (SIL) from squamous, mature metaplastic, and columnar epithelium. Sensitivities of 74% and specificity of 53% can be achieved in identifying CIN 2/3 (High-grade SIL) in screened women. We conclude that cervical impedance spectrometry provides a potentially promising real-time screening tool for CIN with similar sensitivity and specificity to currently used screening tests. Further research is ongoing to develop the probe for potential clinical use.
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