Rhinology
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Given that criteria for nasal surgery in individuals with obstructive sleep apnea syndrome (OSAS) have not been proposed, we investigated the effectiveness of nasal surgery for CPAP failure in patients with both severe OSAS and nasal obstruction. ⋯ Increased nasal resistance is a determinant of CPAP failure, and the surgical correction of severe nasal obstruction should thus be considered to facilitate treatment of OSAS patients with CPAP.
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The incidence of Japanese cedar pollinosis is estimated to be about 13% of the Japanese population. In Japan it is generic to wear a facemask and eyeglasses to prevent pollen inhalation. We examined the usefulness of a facemask and eyeglasses in cooperation with volunteers. ⋯ The pollen invasion rate in the nasal cavity and on the conjunctiva was increased with increases in the wind speed. It may be difficult to avoid pollen even when wearing a facemask and eyeglasses when the wind speed is high. Further study is required to clarify the relationship between the amount of allergens and clinical symptoms.
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The safety and efficacy of a new hemostatic sealant, based on a gel with collagen derived particles and topical thrombin (FloSeal, Fusion Medical Technologies, Inc. Fremont, CA) were assessed as an alternative to nasal packing for hemostasis in functional endoscopic sinus surgery. In a prospective clinical study of 50 patients undergoing bilateral endoscopic anterior ethmoidectomy, 2 ml FloSeal was used after surgery to stop bleeding. ⋯ There were no more cases of stenoses or synechia in the ostiomeatal complex than were found in the Merocel group. No systemic side effects due to FloSeal were observed. This specific hemostatic sealant was shown to be a safe and efficacious alternative method for hemostasis in endoscopic sinus surgery with high patient satisfaction and an easy and fast mode of application.
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Randomized Controlled Trial Clinical Trial
Oxymetazoline nasal spray three times daily for four weeks in normal subjects is not associated with rebound congestion or tachyphylaxis.
Topical decongestants are available over the counter and provide rapid relief of nasal obstruction for conditions of short duration, for example the common cold. Manufacturers' recommendations are that topical decongestants should not be used regularly for more than 1 week in view of the risk of rebound mucosal hyperaemia with persistent nasal obstruction and refractoriness to further effects of decongestants. For this reason we performed a randomised double-blind placebo-controlled trial in 30 normal adult subjects with 0.05% oxymetazoline nasal spray 2 sprays (0.1 ml/spray) to each nostril 3 times daily over an extended period of 4 weeks. ⋯ No significant differences were observed between groups for baseline measurements of nasal peak inspiratory flow, airway resistance or volume at each clinic visit. A highly significant decongestant effect of oxymetazoline was observed at each clinic visit with changes in all 3 measurements for both treatment groups, again with no significant differences between groups. In summary, in normal subjects, we identified no significant nasal blockage or impaired decongestant response to oxymetazoline following 4 weeks treatment with oxymetazoline compared to matched placebo nasal spray.
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Randomized Controlled Trial Clinical Trial
Blood loss reduction during laser turbinectomy.
The use of a combination of topical and injected anaesthetic and vasoconstrictive agents is widely applied in rhinological practice. To prepare the nose prior to a laser inferior turbinectomy under combined general and local anaesthetic, we routinely spray the nose with 1:1000 epinephrine and inject 2% xylocaine with 1:80.000 epinephrine into each inferior turbinate. ⋯ We found that the injection of 2% xylocaine with 1:80.000 epinephrine did not confer any additional benefit, in terms of blood loss or post-operative pain, in the treatment of these patients. The inferior turbinate that was injected bled more during the procedure than the non-injected side; there was no difference in post-operative discomfort between the 2 sides.