“…Nasal co-intervention (inferior or middle turbinectomy, septoplasty or concha bullosa excision) was described in 19 studies. 11,12,14,[18][19][20][21][22]24,26,29,33,34,41,42,53,56,61 In 12 studies nasal co-intervention was performed in an endoscopyassisted approach. 11,12,[18][19][20][21][22]24,26,27,29,63 Three studies 10,16,19 utilized a laser-assisted approach to facilitate track formation prior to placement of the bypass tube.…”