ORL; journal for oto-rhino-laryngology and its related specialties
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ORL J. Otorhinolaryngol. Relat. Spec. · May 1994
Case ReportsA case report of Sjögren's syndrome with repeated false cord swelling.
We present a 42-year-old female patient who had repeated swelling of the bilateral false cords. The patient complained of dryness of the eyes and oral mucosa, and was diagnosed as having Sjögren's syndrome. ⋯ Histologic examinations revealed severe atrophic changes of the laryngeal glands and cystic dilation of the ducts of the glands, associated with marked lymphocytic infiltration and lymphoid hyperplasia. These findings suggest that the etiology of the swelling of the false cords was related to Sjögren's syndrome.
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ORL J. Otorhinolaryngol. Relat. Spec. · May 1994
Decongestion effect and rebound swelling of the nasal mucosa during 4-week use of oxymetazoline.
The aim of this study was to investigate whether long-term use of oxymetazoline induces a rebound swelling of the nasal mucosa and whether the decongestion effect is altered during medication. Eight healthy volunteers had oxymetazoline nasal spray (0.5 mg/ml; 0.1 ml in each nostril, three times daily) for 30 days and registrations of the mucosal surface positions were made using rhinostereometry. Compared to the registrations before the start of medication, no rebound swelling was registered after 10 days. ⋯ The decongested position of the nasal mucosa after one single dose of oxymetazoline was the same in the whole study. It is concluded that rhinitis medicamentosa develops after a relatively short time on oxymetazoline, even in healthy volunteers, and that the swelling probably is due to a vasodilatation rather than an edema. The study supports the recommendation that the drug should not be used over periods > 10 days.
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ORL J. Otorhinolaryngol. Relat. Spec. · Jan 1994
Intraoperative facial nerve monitoring in the surgery of cerebellopontine angle tumors: improved preservation of nerve function.
The surgery of cerebellopontine angle tumors has shown remarkable progress over the last 20 years due to improved microsurgical techniques. However, the dissection of the facial nerve may lead to postoperative paresis as the result of the surgical trauma and the disruption of blood supply over a large distance. The functional status of the nerve can be intraoperatively monitored by means of intramuscular electromyography of facial muscles and direct electrical stimulation. ⋯ The mechanically or thermally elicited activity by drilling, direct manipulation or coagulation consisted of bursts and trains which are signs of minor nerve impairment. Their occurrence can lead to a modified surgical technique with a more precise preparation around and at the facial nerve. The immediate postoperative nerve function was normal or showed only a minor impairment (classes I and II according to House and Brackmann) in 87% of the monitored as compared with 74% of the unmonitored patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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ORL J. Otorhinolaryngol. Relat. Spec. · Mar 1993
Nose drops induce vasomotion in the microcirculation of the sinus mucosa of the rabbit.
Periodic oscillations of blood in the microcirculation of the sinus mucosa in the rabbit were studied with laser-Doppler flowmetry after the application of nose drops (oxymetazoline, xylometazoline and phenylephrine) to the nasal mucosa. All of these drugs induced a dose-dependent decrease in the blood flow in the mucosa. Flowmotion was found in 9 of 21 experiments after an approximately 50% reduction in blood flow had been induced. The concentrations of the drugs which caused vasomotion corresponded to those normally administered as nose drops to man.
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ORL J. Otorhinolaryngol. Relat. Spec. · Mar 1993
Effects of the holmium:YAG and erbium:YAG lasers on endotracheal tubes.
Endotracheal tube (ET) fire is the most frequent complication arising with laser surgery in the upper aerodigestive tract. No data are available about the safety of commonly used ETs when used with recently developed high-energy pulsed lasers, working with only a minimal thermal component but mainly photoablative. A comparative in vitro study was performed with three types of endotracheal tubes to assess their resistance to wall and cuff damage by the laser beams of two pulsed infrared solid-state lasers. ⋯ At all energy levels tested, the photo-ablative mechanism of laser-tube interaction, with few thermal components, led to laser-induced tube ignition if an FiO2 > 21% for the holmium:YAG and 34% for the erbium:YAG laser was established. With increasing pulse energies, ET segments ignited sooner. MLT tubes performed best in the present safety test.