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At least 343 records · Page 19Linked to original sources
PubMed1996

The posterior cricoarytenoid ligaments and their relationship to the cadaveric position of the vocal cords.

Much debate has occurred over the last century regarding the reason for the cadaveric position of the membranous vocal cord. This study attempts to identify the determining factors of the position of the vocal cord. Serial dissection of 36 cadaveric larynges was carried out and laryngeal measurements taken. The cadaveric position of the vocal cords was correlated to that of the posterior cricoarytenoid ligaments and it was found that the two were directly related. The study shows that the major determinant of the position of the denervated vocal cord is the position of the posterior cricoarytenoid ligament.

Aged↗
PubMed1989

[Laryngeal microsurgical laterofixation of paralyzed vocal cords using a new suture instrument].

Author reports on clinical experiences of a method--tried earlier on laboratory animals--for treatment of laryngostenosis following bilateral paralysis of the recurrent nerve. In 2 cases, laterofixation of the paralysed vocal cord only was performed with the help of their endo-extralaryngeal needle carrier instrument. In another 19 cases, medial and lateral fibres of the thyroarytenoid muscle were submucosally removed, then the remaining vocal cord laterofixed with through-stitches in the posterior and middle third, with the help of the endo-extralaryngeal needle carrier. The laterofixing thread was tied over a bent silicon tube, put on the skin of the neck. Threads were removed 2-3 weeks after the operation. The lumen of the larynx was found to be adequate after the operations. One patient was lost on the first postoperative day because of acute heart failure, and hence this case was disregarded at the final evaluation. Postoperative decannulation was successful in all of the 20 evaluated cases. The operations were performed by a laryngomicrosurgical method, without opening the larynx or otherwise disturbing the laryngeal cartilage.

Adult↗
PubMed1998

Comparison and evolution of perceptual and acoustic characteristics of voice after supracricoid partial laryngectomy with cricohyoidoepiglottopexy.

The present prospective study, based on a series of 12 male patients managed with supracricoid partial laryngectomy with cricohyoidoepiglottopexy (SCPL-CHEP), was designed i) to compare the perceptual and acoustic parameters before surgery and at 6 months after sugery, ii) to evaluate the evolution of the perceptual and acoustic parameters between 6 and 18 months postoperatively, and iii) to determine the correlations between the perceptual and acoustic parameters preoperatively and at 18 months postoperatively. The roughness was found to be significantly worsened after SCPL-CHEP. The jitter, shimmer, noise-to-harmonic ratio, and degree of voiceless increased significantly after SCPL-CHEP. Neither acoustic nor perceptual parameters varied significantly between 6 and 18 months postoperatively. Preoperatively, a strong statistical correlation was found between grade, roughness and strain and all acoustic parameters but F0. Breathiness was statistically correlated with all acoustic parameters but jitter. Postoperatively the only statistical correlation noted was between roughness and F0.

Carcinoma, Squamous Cell↗
PubMed1999

Anitschkow myocytes or cardiac histiocytes in human hearts.

The caterpillar chromatin pattern of the nucleus in longitudinal section and owl-eye appearance in transverse section characterize the Anitschkow cell of Aschoff bodies in rheumatic heart disease. Determining whether it is of muscle origin or cardiac histiocyte has been a source of controversy for many years. In a study of fetal and neonatal hearts from humans, vesicular nuclei often displaying the Anitschkow chromatin pattern were the predominant cell type in the myocardium. Because a similar pattern was also observed in two cell types related to laryngeal cartilage and the neighbouring fibrous tissue in a six week old neonate, it was concluded that the Anitschkow chromatin pattern probably indicates cellular immaturity rather than any specific cell type.

Cell Nucleus↗
PubMedDate not supplied

Equine laryngeal hemiplegia. Part III. Treatment by laryngoplasty.

During the years 1971-1979, 127 horses with left laryngeal hemiplegia were studied. The physical characteristics and clinical signs observed in this study were recorded in Part I and Part II of ths series of papers. Of these 127 horses, 81 were treated by the laryngoplasty procedure. Complications of surgery are described and the effects of the operation on respiratory noise and performance are evaluated. In 54.8% of horses the chronic respiratory noise observed during exercise was apparently diminished or eliminated post-operatively. The performance of 44% of horses was apparently improved after surgery. Post-operative racing success occurred in 38% of horses treated. Satisfactory arytenoid adduction as assessed endoscopically within 9 days of surgery was achieved in 77% of cases. Surgical failure appeared to be related to cutting of the laryngeal cartilages by the prosthesis and techniques to minimise this are discussed.

Journal Article↗
PubMedDate not supplied

Computed tomography of diffuse tracheal stenosis in Wegener granulomatosis.

A patient with Wegener granulomatosis presented with diffuse tracheal narrowing and was evaluated using CT and cine-CT. The CT findings included severe laryngeal and tracheal airway narrowing, due to abnormal soft tissue within the laryngeal cartilages and tracheal rings, and enlarged abnormally calcified tracheal cartilages. Computed tomography precisely confirmed the site, level, and submucosal extent of tracheal narrowing, not obtainable on physical or bronchoscopic examination, and assisted in choosing a site for tracheostomy. Wegener granulomatosis should be considered in patients with diffuse tracheal narrowing even when the typical histology is not present.

Adult↗
PubMed2002

Swallowing disorders in the elderly.

Changes that occur as a natural part of senescence in the complex action of deglutition predispose us to dysphagia and aspiration. As the "baby-boomers" begin to age, the onset of swallowing difficulties will begin to manifest in a greater number of our population. Recent advances in the evaluation of normal and abnormal swallowing make possible more precise anatomical and physiological diagnoses. Coupled with an understanding of swallowing physiology, such detailed evaluation allows greater opportunity to safely manage dysphagia with directed therapy and appropriate surgical intervention. The current study is a discussion of the changes that occur in deglutition with normal aging, contemporary evaluation of swallowing function, and some of the common causes of dysphagia in elderly patients.

Aged↗
PubMed1976

Functional laryngectomy (cricohyoidopexy).

Two techniques of subtotal functional laryngectomy are described: cricohyoidopexy which is used for supraglottic tumours, and cricohyoidoepiglottopexy for glottic tumours. These operations have been carried out on 61 patients, with tumours too extensive to be managed by the usual partial laryngectomy. The functional results are good, and 94% of the patients have been decannulated.

Epiglottis↗
PubMedDate not supplied

A mucosal flap technique for correction of laryngeal webbing. Results in four dogs.

Postoperative laryngeal webbing in four dogs was corrected with a mucosal flap technique using mucosa harvested from the lateral wall of the laryngeal ventricle. Airway obstruction caused by the webbing was relieved in all dogs. Follow-up time was 3 months to 5 years. The technique allowed mucosal apposition without undue tension on the suture line.

Airway Obstruction↗