The Clarus Video System (Trachway) and direct laryngoscope for endotracheal intubation with cricoid pressure in simulated rapid sequence induction intubation: a prospective randomized controlled trial

Table 2 Data of endotracheal intubations

	CVS-V group (n = 50)	CVS-L group (n = 50)	DL group (n = 50)	p value
Patients successfully intubated
At the first attempt within 30 s	47 (94)	38 (76)	47 (94)	0.006
At the first attempt within 60 s^a	49 (98)	44 (88)	49 (98)	0.037
Success within 30 s (including two attempts)	47 (94)	41 (82)	47 (94)	0.069
Success within 60 s (including two attempts)	49 (98)	48 (96)	49 (98)	0.773
Median time to successful intubation at the first attempt (s)	10.6 (7.5 to 13.7)	14.6 (11.1 to 18.0)	16.5 (15.7 to 17.3)	0.023^b

Values are shown as number (%) or median (95% CI)
^a Intubation tools at the second attempt were the same in both CVS-V and CVS-L group. In the DL group, CVS-V was used in this case due to unseen glottis at the first attempt
^b Data from Kaplan-Meier estimator with p value of log-rank test. However, after Sidak’s adjustment for multiple comparisons for the log-rank test, the p values were all more than 0.05 in three comparisons (p = 0.0566 between CVS-V group and CVS-L group, p = 0.0762 between CVS-V group and DL group, and p = 0.9998 between CVS-V group and CVS-L group)

ISSN: 1471-2253