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At least 811 records · Page 45Linked to original sources
PubMed1989

Ventral cleft of the larynx in an adult. Case report.

Congenital clefts of the larynx are rare and usually found dorsally. This case report describes a patient with a partial anterior nonfunsion, or ventral cleft, of the thyroid cartilage. This was first noted on computed tomography of the larynx used for delineation of carcinoma and was confirmed by horizontal whole mount histologic sections of the resected larynx. The thyroid cartilage suggested arrested fusion of the laminae in the middle to late embryonic period. This patient had an adult form of this rarely reported anomaly and the first, to our knowledge, detected with CT scan.

Carcinoma, Squamous Cell↗
PubMed1985

Medullary space involvement in laryngeal carcinoma. Computed tomographic demonstration.

The identification of cartilage involvement in laryngeal carcinoma implies advanced stage T4 disease. Although computed tomography (CT) provides the most accurate method of assessing these cartilages, subtle cartilage invasion may go undetected. The major pitfall in detecting tumor involvement is the incomplete calcification of these structures, which may simulate cartilage destruction. High-resolution CT now allows the evaluation of the medullary space of these cartilages. The CT finding of abnormal soft tissue in the central medullary space in addition to a focal cortical defect allows the confident diagnosis of cartilage involvement.

Carcinoma, Squamous Cell↗
PubMed1985

Tracheal reconstruction with pedicled thyroid cartilage.

Limited areas of tracheal stenosis have been repaired with a variety of techniques. More extensive upper tracheal defects present a greater challenge with less predictable success. The following is the description of yet another technique for reconstruction of extensive upper tracheal defects. We report on the use of a muscle-pedicled thyroid alar graft which carries its own blood supply and perichondrial covering, supplies a large, conveniently shaped graft, requires one operative site and one operative sitting, and has proven advantageous even in the comprised patient.

Humans↗
PubMed1981

[Animal-experimental studies on the effect of neodym: YAG-laser radiation on the cartilage of the larynx (author's transl)].

The defect in the thyroid cartilage of the rabbit larynx caused by laser application was predominantly filled by connective tissue which mainly sprouted from the adjacent perichondrium. Additionally, tongue-shaped areas of newly formed cartilage were found along the border. Depending on the duration of the laser application, especially when using low intensities, a distinct endolaryngeal oedema developed which led to death by suffocation of some animals.

Animals↗
PubMed1987

[Partial supracricoid laryngectomy. Technics, indications and results].

A series of one hundred and thirteen cases of supracricoid partial laryngectomy (SPCL) is presented with the description of the surgical technic. All the patients, previously untreated, were decanulated. The deglutition was eventually normal in 97.2% of those treated by SCPL with circo-hyoido-epiglottopexy (CHEP) and in 95.5% after SCPL with crico-hyoido-pexy (CHP). The carcinologic results are presented. The actuarial survival rate at 3 years was 86.5%, after SPCL with CHEP and 71.4% after SCPL with CHP. At 5 years the actuarial survival was 66.3% after SCPL with CHP. The surgical indications are discussed according to the tumor site: vestibular carcinomas should be treated by SCPL with CHP and glottic carcinomas by SCPL with CHEP. A tumor extension beyond the superior border of the cricoid cartilage precludes these surgical procedures.

Adult↗
PubMed1978

Preservation of a radionecrotic larynx by excision of thyroid cartilage with flap coverage.

Necrosis of the larynx following radiation therapy is a rare complication leading to severe disability and even death. Generally accepted treatment has consisted of incision and drainage, debridement, and tracheotomy or even total laryngectomy. One patient developed chondronecrosis of the thyroid cartilage and was treated by excision of the entire thyroid cartilage and overlying skin with subsequent coverage by a unipedicled cervicothoracic flap. The patient has had his tracheotomy corked or been decannulated for 11 months with preservation of a useable larynx.

Carcinoma, Squamous Cell↗
PubMed1988

Laryngeal injury from prolonged endotracheal intubation.

This project was undertaken to develop models of acute and chronic laryngeal intubation as a format for testing a newly designed endotracheal tube. The tube has a specially created laryngeal cuff designed to reduce pressure exerted against the laryngeal soft tissues. The laryngeal foam cuff was shown to prevent the injurious sequence of mucosal ischemia, ulceration, and cartilage damage. A laryngeal foam cuff has the potential to significantly reduce laryngeal injury from prolonged endotracheal intubation. A prospective randomized clinical trial has been initiated and will be reported subsequently.

Animals↗
PubMed1988

[Impression of the thyroid cartilage lamina--differential diagnosis in hyperplasia of the ventricular fold].

Impression of the thyroid lamina is presented by means of CT examinations of the larynx and in correlation with the clinical features and with serial sections of the larynx in the horizontal plane. This anomaly of the thyroid lamina produces the laryngoscopic aspect of a hyperplastic false vocal cord. Measurements proved that the horizontal extension of the convex thyroid lamina is always longer than the lamina of the other side. The pathogenetic mechanism in the development of this anomaly lies--in our opinion--in the irregular increase in size that probably begins at the onset of puberty. The impression of the thyroid lamina is predominantly found in men and mainly on the left side. In its effects this anomaly must be classified as a dysplastic dysphonia and as such it reduces the capacity of the vocal organ and predisposes to the development of functional dysphonia. There should be careful differentiation between the impression of the thyroid lamina and the "genuine" hyperplastic ventricular fold, because these clinical syndromes are completely different from each other in aetiology, therapy and consequences.

Adult↗
PubMed1985

Thyroid cartilage flap reconstruction of the larynx following vertical partial laryngectomy: a preliminary report in two patients.

Reconstruction of the larynx following vertical partial laryngectomy may be undertaken with many techniques. Methods using soft tissue employ readily accessible structures within the operative field with straightforward reconstructive designs. However, decannulation is often delayed, and variable degrees of atrophy must be planned for. Methods using cartilage may lead to early decannulation without long-term atrophy as a problem. However, grafts or flaps are less accessible, and reconstructive designs are often complex. In addition, chondritis may be a significant problem, especially in radiated patients. A supraglottic thyroid cartilage flap is described that is readily accessible and maintains its blood supply from external and internal perichondrium, as well as internal mucosa. Its use is reserved for unilateral glottic lesions without supraglottic spread. Experience with this technique is described in two patients.

Carcinoma, Squamous Cell↗