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At least 1,297 records · Page 72Linked to original sources
PubMed1989

Thyroid pressure.

Explore the source record for details and available documents.

Anesthesia, Endotracheal↗
PubMed1989

New laryngeal surgery may improve voice.

Laryngeal framework surgery has increased the options the otolaryngologists have available to treat voice disorders ranging from unilateral vocal cord paralysis to pitch disorders.

Humans↗
PubMed1989

[Differential diagnosis of vocal cord immobility after intubation].

Vocal cord paralysis as cause of an immobility of the vocal cord following endotracheal intubation is often a misdiagnosis. The differential diagnosis is pointed out to distinguish between paresis and ankylosis of the cricoarytaenoid joint, interarytaenoid fibrosis or luxation of the arytaenoid. The development of these disturbances following endotracheal intubation and their therapy are presented.

Ankylosis↗
PubMedDate not supplied

[Reconstructive surgery in post-traumatic lesions of the thyreohyoid membrane].

A new method of surgical intervention to treat problems in the dividing function of the larynx is described. The de novo produced anastomosis between the hyoid bone and the larynx is supported by a muscular-fascial graft formed from the superior laryngeal muscles. This operation has been successfully performed in three patients with severe lesions of the thyrohyoid membrane.

Adult↗
PubMed1989

[Direct electric stimulation of the denervated posterior cricoarytenoid muscle triggered by subglottic temperature in the cat. Preliminary to a laryngeal pacemaker].

Using a temperature sensor to detect inspiratory fresh air flow in the subglottis, we triggered direct electrical stimulation of unilaterally denervated posterior cricoarytenoid muscle (PCA) in cats. Respiratory air flow temperature variations were recorded in awake animals and stimulation of the PCA resulting in vocal cord abduction was obtained several weeks after surgery. Difficulties related to chronic implantation and stimulation are discussed. Their solutions are required before laryngeal pacemaker is used.

Animals↗
PubMed1988

[Morphometry of the larynx in horizontal sections. Normal data for the quantitative evaluation of current imaging technics].

Laryngeal anomalies as a predisposing factor for pathogenesis of vocal disturbances have been discussed for a long time. Laryngeal structures can be made visible in vivo, and structural details be measured, only since the development of new imaging techniques, mainly of CT. As adequate descriptions have not been published in literature unto now, we measured horizontal sections of laryngeal specimens to collect reference data for a quantitative analysis of CT images. An evaluation technique was therefore developed, which, by clear definition of the planes and points of measurements, yields reproducible results. Direct measurement of the thyroid angles can be abandoned, since these can be easily calculated from the known distances.

Aged↗
PubMed1988

[Implantation of 125 iodine seeds in the dog vocal cord. An experimental morphologic study].

Following the first positive therapeutic results of T1a vocal chord cancer with 125iodine seeds in man (brachytherapy), we were concerned with the effects of this low-energy photon source on healthy laryngeal tissue. In the larynx, changes in the area of the vocal chord and the cartilaginous laryngeal structures were investigated in particular. These experimental studies were performed on the larynx of the dog. Through direct laryngoscopy, two 125iodine seeds were implanted in the anterior third of each vocal chord in 8 dogs; the resulting prick canals were sealed with fibrin glue. During survival the correct position of the seeds was radiologically monitored. After survival periods of 1, 3, 6, and 12 months the larynges were fixed by perfusion, removed, imbedded in paraplast, and stained with H. E., Azan, and E. v. G. After this protracted irradiation with 125iodine seeds only slight and for the most part reversible pathological changes had occurred. One month after implantation, only a perivascular infection was found in the vocal chord. After three months an inhibition of the fibrin organization around the seeds was observed as well as a localized dyschylia with broadening of the gland ducts. Additionally, a circumscribed dysplasia of the squamous epithelium, swelling of the capillary endothelium, atrophy of muscular fibres around the seeds, and telangiectasia of blood vessels were discernable. 6 and 12 months after implantation, only the muscular atrophy and the telangiectasia of the blood vessels remained detectable, in addition to a reduced inhibition of the fibrin organisation by connective tissue.

Animals↗
PubMed1978

[New results on ageing of connective tissue (author's transl)].

Some new results on ageing of connective tissue are demonstrated, regarding not only mesenchymal, but also parenchymal organs of human and rat (both sexes). These results show that ageing of connective tissue is more a dynamic process (with measurable metabolic parameters of the several connective tissue cells and their products) than a passive or so-called degenerative connective tissue process. The bradytrophy concept of connective tissue cannot be accepted any longer. Then connective tissue cells can produce metabolic rates of the same level like parenchymal cells. The different organs possess partly common basic processes partly differences in connective tissue ageing, dependent on the composition and patterns of proteoglycans resp. of GAG and collagen types, furthermore dependent on localisation, structure and function. The results on ageing of connective tissue are useful for better understanding of ageing processes of parenchymal organs. Then their ageing is influenced essentially by the ageing of the own connective tissues. The turnover, more than the number of mesenchymal and parenchymal cells, decreases with ageing. More old than young cells seem to exist in old tissues and organs. The performance of ageing connective tissue cells can be constant or increase or decrease. Many mesenchymal and parenchymal organs develop a so-called "ageing-fibrosis".

Aged↗
PubMed1987

Congenital laryngeal atresia.

Laryngeal atresia is a rare congenital anomaly requiring immediate tracheotomy as a lifesaving measure. A case of subglottic laryngeal atresia is reported and correlated with laryngeal embryogenesis. Three types of laryngeal atresia are described. Although tracheoesophageal fistula is commonly associated with laryngeal atresia, one must be careful not to confuse a pharyngotracheal duct with a tracheoesophageal fistula. A disproportionate number of reported TE fistulas associated with laryngeal atresia may result if an accurate distinction between pharyngotracheal duct and TE fistula is not made.

Diagnosis, Differential↗
PubMed1986

Isolation and characterization of high-buoyant-density proteoglycans from semilunar menisci.

Proteoglycans were extracted from adult canine menisci in high yield and were purified, and the major species were characterized biochemically. Most proteoglycans in menisci were isolated in the high-buoyant-density fraction. By agarose-acrylamide composite gel electrophoresis, two proteoglycans were seen in this fraction. Although they were smaller than those from porcine laryngeal hyaline cartilage and had shorter chondroitin sulphate and keratan sulphate chains and a lower carbohydrate-to-protein ratio, they were functionally similar to those in hyaline cartilage in their specific interaction with hyaluronate.

Animals↗