Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “LARYNGOSCOPY”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 613 records · Page 34Linked to original sources
PubMed2001

Transillumination laryngoscopy: a new way of evaluating vocal fold and hypopharyngeal lesions.

Conventional methods of observing the larynx and the hypopharynx use reflected light to illuminate the larynx. The aim of this study was to see whether transilluminating the larynx was possible in subjects with and without disease. The larynx and the hypopharynx were observed by means of a rigid scope with a low-light charge-coupled device camera without the light guide inserted. Illumination was provided by a second rigid scope attached to a light source that was held at the neck by an assistant. The larynx and hypopharynx were observed by transillumination using both constant lighting and stroboscopy in 3 subjects with pharyngeal or laryngeal lesions and in 4 normal controls. The tumors were translucent or nontranslucent in appearance. A translucent polyp became nontranslucent when overlapping the vocal fold, thus indicating that a lesion the size of a polyp could be evaluated with this method. Mucosal waves could be observed during stroboscopy with transillumination, thus allowing observation of waves and lesions that cannot be observed with conventional stroboscopy.

Adult↗
PubMed2006

Laryngoscopy in bilateral vocal fold immobility: can you make a diagnosis?

OBJECTIVES: This study explores whether videoendoscopic findings and patient history help make the diagnosis in bilateral vocal fold immobility (BVFI). METHODS: Medical records from 1995 to 2003 were searched to identify patients with posterior glottic stenosis (PGS) and bilateral vocal fold paralysis (BVFP) who also had videoendoscopic examinations. Videoendoscopic examination findings that could help differentiate PGS from BVFP were identified a priori. A weighted scoring index, based on the adjusted odds ratios of significant examination findings on multiple logistic regression, was derived. Associations between the weighted scoring index, patient history, and diagnosis were then evaluated. RESULTS: Twenty-six patients with BVFP and 28 patients with PGS were identified. Posterior glottic scar (weight = 2), medial arytenoid erosion with a widened posterior glottis (weight = 1), and appropriate vocal fold motion (weight = 1) were significant variables (p < or = .05, multiple logistic regression) and constituted the weighted scoring index. A weighted scoring index of > or = 2 and a history of prolonged intubation predicted PGS in 95.2% of cases. A weighted scoring index of < or = 1 and a history of neck surgery predicted BVFP in 95.0% of cases. CONCLUSIONS: The weighted scoring index with the patient history provides an objective tool for diagnosing BVFI.

Adult↗
PubMed1999

Universal modular glottiscope system: the evolution of a century of design and technique for direct laryngoscopy.

Since Kirstein introduced formal direct examination (autoscopy) of the glottis in 1895, a great number of laryngoscopes have been produced to view the vocal folds; however, none have had universal appeal. The primary goals for the designs have been to optimize exposure and to facilitate instrumentation of the glottis. An analysis of more than 50 laryngoscopes was done to assess key design characteristics that would ideally be present in a laryngoscope for optimally viewing the musculomembranous vocal folds. The Pro/Engineer and Pro/Mechanica computer programs were used to model the universal modular glottiscope. This new laryngoscope comprises a plurality of specially designed examining tubes that are bivalved proximally to improve utilization of hand instrumentation, and form a single tube distally to achieve internal distention of the supraglottal tissues. The distal lumen has an arcuate isosceles-triangular conformation to optimally expose the glottis. The base of the tube is detachable for the difficult intubation or the placement of bronchoscopes. The examining tubes vary in size and dimension to accommodate the diversity of human anatomy. The tubes are easily attachable to and detachable from an ergodynamically designed universal handle that can be joined to fulcrum laryngoscope holders or suspension gallows. The universal modular glottiscope evolved from the selective integration of optimal 20th-century design modifications of Kirstein's original autoscope. This new laryngoscope is ideally suited for phonomicrosurgery as well as for difficult intubation.

History, 20th Century↗
PubMed1989

Cardiovascular responses to tracheal intubation: a comparison of direct laryngoscopy and fibreoptic intubation.

The cardiovascular responses to tracheal intubation using a fibreoptic bronchoscope or Macintosh laryngoscope were compared in twenty in-patients and twenty day-stay patients. Within these groups patients were randomly allocated to direct laryngoscopic or fibreoptic bronchoscopic intubation. Arterial blood pressure, heart rate and arterial oxygen saturation were recorded before induction and at one-minute intervals until four minutes after intubation. In both groups both laryngoscopic and bronchoscopic intubation resulted in a significant rise in blood pressure and heart rate. At no stage was there a significant difference in mean blood pressure in either group, or in heart rate in the day-stay patients, between the different methods of intubation. In the in-patients mean heart rate was significantly higher in those patients intubated with the bronchoscope at three and four minutes after intubation. Time taken for intubation was significantly longer in those patients intubated with the bronchoscope. In no patient did the arterial oxygen saturation fall below 98%.

Adult↗