The effect of expandable XXXX packing for preventing @entity50 .

@entity1 @entity8393 @entity850 @entity8908 @entity12476 @entity50
BACKGROUND: The aim of this study was to evaluate the effect of repeated expandable @entity8908 ( @entity8393 ) packing for preventing @entity50 after @entity1 undergo functional endoscopic sinus surgery (FESS). METHODS: A nonrandomized, prospective study of 20 @entity1 with @entity12476 was conducted based on the Lund-Mackay scoring system. EPA was packed, for 3 days/week, in total, three times for 3 weeks, into the left frontal sinus ostium right after FESS. For the control, the @entity50 was left unpacked. After 6 months, the patency of the frontal sinus ostium was measured with a ruler under endoscopic guidance and the patency was classified as obstructed, stenotic, or patent according to the size. RESULTS: Obstruction developed in the right side in four @entity1 and in the left side in two @entity1 . @entity850 was found in the right side in eight @entity1 and in the left side in one @entity1 . The ostium of the frontal sinus was patent in the right side in 8 @entity1 and patent in the left side in 17 @entity1 . The sizes of the ostia were significantly different between the frontal sinuses on both sides 6 months after FESS (p < 0.05). CONCLUSION: The outcome of repeated EPA packing was favorable in @entity1 undergoing FESS.
