| Gataure PS et al, 1996, UK | 100 patients undergoing elective surgery randomly split into 2 equal groups. Group 1 were intubated using 2 attempts with a bougie followed by a stylet while group 2 were intubated with 2 attempts with a stylet followed by a bougie. | RCT | Success rate after 2 attempts | 48/50 (96%) v 33/50 (66%) p<0.001 | Not tested with grade 4 views. The study did not compare lighted stylets against bougies and unlighted stylets |
| | | Mean time for 2 intubation | 30.1 sec v 36.6 sec | The study used simulated difficult intubations rather than actual difficult intubations |
| Simulated grade 3 views were used. | | | | |
| Bougie v stylet | | | | |