Rhabdomyolysis after bariatric surgery: a potentially fatal complication.

when our data were consistent with other work. Overall, there was a significant difference between epistaxis in upper and lower pathway cannulation, but as we indicated in the paper, the number of preformed and thermosoftened preformed tubes passing though the lower pathway was too small (16.7% and 20%, respectively) for meaningful statistical analysis on their own. However, when reinforced tubes were considered, there was a significant difference between epistaxis in upper and lower pathway cannulation. In a randomized controlled trial, sample size is based on the primary focus of the investigation and not on secondary factors, particularly when the investigators are not aware of the existence of a particular secondary factor. Hence, the possibility of a beta error with regard to the epistaxis data is irrelevant here. The size of tubes used (7 mm and 6 mm tubes, for males and females, respectively) are perfectly satisfactory for routine nasal intubation. There is seldom any need to resort to 7.5 mm tubes, which are more likely to cause nasal damage. It is well recognized that stiffening of the tube recurs rapidly as the tube cools, and intubation was performed promptly and without delay.