Otolaryngologia polska. The Polish otolaryngology
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Outer hair cells are believed to be responsible for generation of otoacoustic emissions (OAEs). High sensitivity of OAE makes it possible to diagnose subclinical cochlear pathologies even if they have not yet been revealed by tonal audiometry. The aim of this study was to evaluate an influence of general anesthesia and other drugs administered in pre- and post-operative period on TEOAE in subjects operated on for various congenital heart defects in extracorporeal circulation. ⋯ Among ototoxic drugs only acetylsalicylic acid affected TEOAE in post-operative tests. The authors conclude that general anaesthesia does not change the cochlear function, although, in children in whom acetylsalicylic acid was administered in post-operative period the cochlear function was affected. In these subjects the function of the cochlea should be monitored in post-surgical period.
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The usefulness of the videolaryngoscopy in patients after total laryngectomy/laryngopharyngectomy was discussed. They serve for: a) evaluation of the pharynx and of the pharyngoesophageal sphincter (pes) morphology, b) prognosis of the esophageal speech developing. In the study videolaryngoscopy was done in 82 patients (7 female and 75 male). ⋯ The shape of the pharynx in all the patients after laryngectomy with plasty or simple myotomy of the pes was regular, with thin and smooth mucosa while the rest pressure was low (3.0 +/- 1.18 kPa(-)+/- 22.5 +/- 8.8 mm Hg). In the analyzed material at the rest pressure in the sphincter area from 0.7 to 4kPa (from 5 to 30 mm Hg), 93% (41/44) of the patients have mastered the esophageal speech. It was stressed that videolaryngoscopy is entirely sufficient for the approximate assessment of the rest pressure in the pes area and prognosis of the esophageal speech development process.
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Biography Historical Article
[Beethoven's deafness: the basis of hearing].
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The aim of the study was evaluation of early results of tracheal resection with end to end anastomosis. Tracheal resection was performed in 5 patients with tracheal stenosis resulting from prolonged intubation. Three patients were admitted without tracheostomy, in two patients tracheostomy was performed in another hospital. ⋯ Four patients had no complication after the operation and one patient had temporary subcutaneous emphysema in the neck. For 4-11 months follow up after operation all the patients have had good breathing. Tracheal resection with end to end anastomosis is effective method of treatment of tracheal stenosis.
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The aim of this study was to determine influence of extracorporeal circulation and body temperature on transiently evoked otoacoustic emission (TEOAE) in children operated on for various heart defects. The investigated group consisted of 44 children (average age 9.3 +/- 5.9 years). TEOAEs were measured one day before and 7-8 days following surgery. ⋯ TEOAEs showed tendency to decrease in patients who were operated in long lasting extracorporeal circulation in normothermia. Such a tendency was not observed in patients operated in temperatures between 30-35 degrees C and extracorporeal circulation time between 1-2 hours. This observation confirms that hypothermia has a protective role for the cochlea and could prevent its damage during long lasting operations performed in extracorporeal circulation.