Journal
AMERICAN JOURNAL OF RHINOLOGY & ALLERGY
Volume 23, Issue 1, Pages 85-90Publisher
OCEAN SIDE PUBLICATIONS INC
DOI: 10.2500/ajra.2009.23.3265
Keywords
Endoscopic modified Lothrop procedure; endoscopic sinus surgery; irrigation; nasal crusting; nasal spray; squeeze bottle; technique; wound healing
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Background: Postoperative irrigation after endoscopic sinus surgery and endoscopic modified Lothrop procedure is used to remove nasal crusts and to improve wound healing. To evaluate the optimal application protocol for irrigation of the frontal sinus, a prospective cadaver study was performed. Methods: Art endoscopic modified Lothrop procedure and complete sphenoethmoidectomy were performed in 19 heads. Each was irrigated with a 1.5% solution of water and different colors using nasal spray and a squeeze bottle filled with 50, 100, and 200 mL. Intensity of local staining and percentage of area were documented using standardized videoendoscopy after irrigation in bending over the sink or vertex to floor position. Grading was performed by two independent observers for 23 anatomic regions, including the stained circumference of maxillary and frontal ostia. To evaluate the influence of the anatomy, acoustic rhinometry was performed. ANOVA was used to evaluate effects of application methods and head positions using GenStat 8.2 (Lawes Agricultural Tnust, Rothamsted Experimental Statim, Harpenden, U.K.) using an appropriate block structure. Results: With regard to the frontal sinus, we were able to show clear superiority of the squeeze bottle technique filled with 200 mL and applied in the vertex to floor position. Conclusion: In a relatively fit and flexible patient the vertex to floor position using a squeeze bottle technique is advocated. There may be some patients, however, for whom this position is not feasible. hi these patients bending over the sink, while inferior to the Vertex to floor positim, still ensures some irrigation of the frontal sinus.
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