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At least 757 records · Page 42Linked to original sources
PubMed1975

Skin and homograft cartilage reconstruction.

Conservative vertical hemilaryngectomy poses the problem of relating the need to remove the tumor completely to the aim of reconstructing an adequate airway lined with epithelium. An attempt has has been made in experimental animals to overcome this problem using pedicled skin and homograft cartilage. The findings suggest that this is a feasible technique, although somewhat hampered by problems unique to the animals concerned. The use of skin pedicles provides adequate cover without shrinkage, and although it is doubtful whether cartilage can survive intact in the long-term, it would seem that it may be adequate for the purposes intended.

Airway Resistance↗
PubMed2006

[Glottis morphology after supracricoid laryngectomy with CHP or CHEP--protetective and respiratory function assessement].

The aim of this study was to evaluate morphology and assess of the protective and respiratory function of larynx after cricohyopexis (CHP) and cricohyoepiglottopexis (CHEP). The examined group consisted of 58 patients (49 males and 9 female) operated between 1984-2002. An average age 54 (min. 36, max. 67). 32 patients underwent CHP and 26 had CHEP. CHP was performed in following modes: a) 1 aryteroid cartilage left in 17 (43,75%) cases, b) 2 aryteroid cartilages left in 14 (43,75%) cases and c) 1 aryteroid cartilage left and second resected with subsequent reconstruction in 1 (3,31%) case. In CHEP patients the operations were a) 17 (65,38%), b) 4 (15,38%) and c) 5 (19,23%) respectively. The aryteroid cartilage was reconstructed in 19 cases (8 after CHP and 11 after CHEP). In the reconstruction of aryteroid cartilage vascularized thyroid lobe was used in 8 cases (6 after CHP and 2 after CHEP), cuneiform or corniculate cartilage was used in 4 patients (1 CHP and 3 CHEP) and mucous membrane in 7 cases (1 CHP and 6 CHEP). To determine morphology of larynx, videolaryngoscopy was done. Thus examination distinguished 5 neoglottis shapes: oval (62,1%), longitudinal (13,8), triangle (8,6%), irregular (6,9%). In 8,6% cases the neoglottis was invisible. Decaniulation was possible in 66% patients, 24 (75%) after CHP and 14 (54%) after CHEP. In the group with both aryteroid cartilages left, 16 (89%) patients were decannulated. 31 (54%) patients complained about occasional liquid aspiration. To evaluate dysphagia, subjective complaints between 6-12, 12-18 and >18 months after surgery were analyzed. The swallowing was improving in the course of time. Between 6 and 12 months after surgery 31 (54%) subjects developed dysphagia, but after 18 months only 3 (5,1%) complained about swallowing impairment. Patients without aryteroid cartilage reconstruction or decanulated had more efficient swallowing.

Adult↗
PubMed1985

Cricoid collapse. A new technique for management of glottic incompetence.

A new procedure corrects glottic incompetence in patients following extended horizontal partial laryngectomy. The procedure consists of making vertical, cartilaginous cuts to collapse one half of the cricoid cartilage to a fixed midline position. In selected patients, this procedure has been demonstrated to permit decannulation where conventional methods have failed.

Cricoid Cartilage↗
PubMed1987

Airway growth following cricotracheal resection in puppies.

A canine animal model was developed to study the effects of cricoid resection on cricoid cartilage growth and subglottic lumen size. Twenty-four healthy, postweanling mongrel puppies, aged 5 to 7 weeks, were randomly divided into two groups. The first group, consisting of 13 puppies, underwent cricotracheal resection with primary anastomosis. A second group, consisting of 11 puppies, served as controls and did not have surgery. Animals from both groups were killed at age 13 weeks. Most of the animals, however, were allowed to mature to adulthood and were killed between age 26 to 28 weeks. Comparative histologic examinations of the laryngotracheal complexes of operated-on and control dogs showed uninterrupted cartilage growth at the anastomosis site after cricotracheal resection. There was no significant difference in the mean area of the cricoid lumen between the two groups when luminal area was adjusted for body weight. The results demonstrate that cricotracheal resection in this animal model does not interrupt cricoid luminal area or cricoid cartilage growth, and provides rationale for further investigation of cricoid resection with primary anastomosis in humans. Cricotracheal resection in growing puppies appears to be an excellent model for further studies in the surgical treatment of acquired subglottic stenosis in infants and children.

Airway Obstruction↗
PubMed1983

Endoscopic laser arytenoidectomy.

Most patients with bilateral vocal cord paralysis have a fairly satisfactory voice, but their airway is usually inadequate for day-to-day exertion. In some patients, the airway may be inadequate for even quiet respiration and an indwelling tracheotomy is required. Solution to this problem has involved the following techniques: tracheotomy, lateralization of the vocal cord by either endoscopic or external routes, or vocal cord reinnervation by the nerve-muscle transposition technique. Endoscopic laser arytenoidectomy has been mentioned in the literature. However, the actual technique as well as the attendant morbidity associated with this procedure has not been highlighted. Four patients with bilateral vocal cord paralysis of the larynx have been treated by endoscopic laser arytenoidectomy at Northwestern University Medical School. The technique, problems, and results are discussed.

Aged↗
PubMed1984

Rheumatoid arthritis of the crico-arytenoid and crico-thyroid joints: a radiological and clinical study.

Low-voltage neck radiography and indirect laryngoscopy was performed in 22 randomly selected rheumatoid patients with the purpose of detecting intralaryngeal arthritis. Radiographic evidence of erosive arthritis of the crico-arytenoid (CA) joints was found in 45% of the patients. Clinical acute CA arthritis without erosive changes was present in two patients, the overall incidence of CA arthritis being 55%. The incidence was higher in females (65%) than in males (20%). The CA arthritis was asymptomatic in 58% of the patients. Radiography revealed osseous destruction at the crico-thyroid joint in four females.

Adult↗
PubMed1983

A new emergency cricothyroidotomy instrument.

Cricothyroidotomy is an excellent emergency procedure for airway obstruction which cannot be relieved by oral or nasal intubation. Important factors for a device for emergency cricothyroidotomy include selective airways, an airway lumen of sufficient size to permit suctioning or adequate airflow during spontaneous breathing, and the ability to assess depth and angle of penetration. An instrument that is simple to insert, offers protection against overpenetration, minimizes bleeding, and provides an airway offering a variety of lumens is described. It appears to provide an ideal means of accomplishing an emergency cricothyroidotomy for airway obstruction.

Airway Obstruction↗