Biomedical subjects
Publications and source records attributed to S Kubik.
We attempted to elaborate an operating method, whereby the electrodes could be placed without opening the scale tympani or vestibule. In this respect the medial wall of the tympanic cavity, i.e. the bony cochlear wall provides the most favourable means of access. It is easy to reach surgically and provides adequate access to the cochlea.
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A correlative study of the anatomy and the radiological appearance of the intratemporal course of the facial nerve canal was carried out. Isolated temporal bones and temporal bones of cadaver heads were examined with thin-section high-resolution computed tomography in the axial, coronal and Stenvers' projections, then sectioned with a microtome and the radiologic and anatomic images were correlated. Appropriate projections for visualization of each segment of the facial nerve canal on CT were established. The high-resolution CT Stenvers' projection proved very useful for visualization of the geniculate ganglion fossa, as also of the tympanic and mastoid segments in their full length. The high-resolution CT appearance of lesions characteristic for each segment of the facial nerve canal are presented.
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In the Field of Cochlear Implant Research the new terms are presented in a number of different ways. Further the achieved results have been based on varying data, making a comparison extremely difficult when not impossible. The contributors to this publication attempt to standardize the terminology, electrical data, and the evaluation of the hearing result, in order to achieve an objective comparison.
Six patients are described following insertion of an 8-channel cochlear implant. The prosthesis was modified from the Vocoder technique, and was implanted by a simplified method of the procedure previously reported by us. In addition to the perception of background noise as well as the differentiation of periodicity and frequencies, a distinct improvement of the patients' speech discriminations could be observed with this technique.
The plane through the anterior margin of the trachea and the main bronchi, and its continuation through the bronchopericardial membrane and dorsal wall of the pericardium, divides the mediastinum into an anterior and posterior compartment. The knowledge of the contained structures and the relations of the mediastinal organs, satisfies the requirements for assessment of horizontal sections. On this basis, demonstrations were made of typical cross-section views of the inferior, middle, and superior mediastinum.
With increased use of anticoagulant agents, femoral neuropathy subsequent to hemorrhage within the iliacus muscle has become a frequent clinical problem. The mechanism for this type of femoral nerve palsy was studied in dissections of the iliac region and by injections of latex into fascial planes in that area. In most dissections, up to four fascial layers, parallel to the iliacus sheath, could be identified. Variable states of fusion of these layers often produced up to three pouches, separated by loose connective tissue or fat. These fasciae (called "lamina peritonealis," "lamina transversalis," "lamina preiliaca," and "lamina iliaca") appear to be variable adult remnants of distinct fascial layers present in the posterior abdominal wall during embryological development, and serve to strengthen the intrinsic fascia of the iliacus muscle. Latex injected into the iliacus sheath spread from the midlumbar region to the femoral triangle, surrounding, compressing, and stretching the femoral nerve in different parts of its course. These observations suggest an anatomical basis for femoral nerve palsy during iliacus hematoma.
The study of possible drainage pathways for the upper extremity after axillary lymphadenectomy by means of Indian ink injection shows: 1) that the single drainage is through the lateral upper arm bundle, but only if the latter joins the supraclavicular nodes or if its infraclavicular ending remains unremoved; 2) that the lateral bundle occur as either a long or a short type; 3) that with regard to the lymphatic drainage of the skin, areolae, zones and territories can be distinguished; 4) that a long bundle is the more suitable collateral way as collectors of the forearm territory join it; 5) that the most frequent cause of lymphedema is the fact that lymph of the forearm as well as of the dorsomedial upper arm territory can reach the lateral bundle only via the cutaneous plexus, over the lymphatic watersheds.
Primary vestibular projections to the ipsilateral abducens nucleus were found in cats by injecting anterograde tracer substances (radioactive proline and fucose) into Scarpa's ganglion. Labelling was observed in the rostral and middle portion of the abducens nucleus.
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An accessory bile duct was observed during anatomical dissection of the body of an 84-year-old man. The duct originated in the superior area of the lateral segment of the liver and penetrated the stomach wall in the region of the pylorus. Histologic examination revealed that the duct passed through the pyloric sphincter and could be traced to the submucosa of the pars superior of the duodenum. In addition the left gastric vein was enlarged and instead of opening into the portal vein, passed directly to the superior area of the lateral segment of the liver.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.