Nihon Jibiinkoka Gakkai kaiho
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Six cases of acute transient enlargement of the parotid gland under general anesthesia, so called anesthesia mumps, are reported. Patient 1 was placed in the left lateral position and the left parotid gland was subsequently observed to be diffusely enlarged. With five patients in the prone position, bilateral parotid gland enlargement was observed. ⋯ Mechanical compression by sheet amadou may have produced the swelling in the patient who was placed in a lateral position. In the prone position, changes in the autonomic nervous system during surgical procedures and anesthesia, vascular congestion resulting from the surgical position, an overactive pharyngeal reflex stimulated by endotracheal intubation and mechanical ventilation are discussed as possible causes. Evaluation of the occurrence and clinical course of anesthesia mumps provided useful diagnostic and management data.
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Nippon Jibiinkoka Gakkai Kaiho · Aug 1992
[High speed cinematographic analysis of subglottal mucosal vibration during experimentally induced phonation in excised larynges].
Twenty-seven excised canine larynges and two excised human larynges fixed on a wall of a specially constructed glass box, were blown on and the subglottal mucosal vibrations were photographed using high speed cinematography from the tracheal side. Each film was repeatedly projected at normal speed and analyzed frame by frame. Mucosal upheaval appeared between the anterior commissure and the vocal process. ⋯ Histological examination revealed that the mucosal upheaval arose on the lower surface of the vocal fold, slightly above the area where the muscular layer came close to the epithelial layer. After the cricothyroid approximation, the mucosal upheaval occurred in a more upward area where the lamina propria was thicker. In addition, after stimulation of the TA, the mucosal upheaval was located in the area where the muscular layer was thick under the epithelial layer.
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Nippon Jibiinkoka Gakkai Kaiho · Mar 1992
[Surgical anatomy of the sphenoid sinus--relationship to the internal carotid artery].
HRCT images in axial sections obtained from various otologic lesions were used for morphological studies of the sphenoid sinus. 412 cases including 224 males and 188 females, with an average age of 47.5 years were included in the study. None of the cases showed any evidence of sinus lesions. The internal carotid artery, at its close connection with the sphenoid sinus, was classified into five portions: I, the second turn; II, between the second and third turns; III, the third turn, IV, between the third and fourth turns, and V, ascending portion of the fourth turn. ⋯ The incidence of protrusion increases as the sinus grows larger. The average distance between the natural orifice and the carotid canal was 19.3mm on the right and 18.9mm on the left. The distance between the posterior end of the nasal septum and the natural orifice was, on average, 3.6mm on the right and 3.6mm on the left.
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Nippon Jibiinkoka Gakkai Kaiho · Feb 1992
[Surgical anatomy of the sphenoid sinus--development and intersinus septum].
High-resolution CT images in axial sections obtained from various otologic lesions were used for morphological studies of the sphenoid sinus. 412 subjects, 224 males and 188 females with an average age of 47.5 years, were included in the study. None of the subjects showed any evidence of sinus lesions. ⋯ The intersinus septum, seen in 95.1%, pointed toward the carotid canal in 61.1% (right, 33.1; left, 28.0%). In 80% of the subjects, the sphenoid sinus had extended into the bilateral lesser wings and was in contact with the optic canal.
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Nippon Jibiinkoka Gakkai Kaiho · Nov 1990
[Conductive deafness without perforation of tympanic membrane with reference to cases of undetermined incudostapedial joint disorder].
In order to elucidate the pathophysiology of an undetermined conductive deafness without perforation of the tympanic membrane, comparative study was made in several factor with conductive deafness which has normal tympanic membrane and may be due to inflammation. Differences and similarities in the manner of ossicular damage were discussed in these conductive deafness. ⋯ The origin of etiology was estimated may take part in inflammatory process. We emphasized that such as undetermined conductive deafness may increase according to increase of otitis media with effusion.