Table 1

Recapitulation of previous studies on ETI with videolaryngoscopy in the intensive care unit or emergency department

First author	Device	Operators	Centre	Design	Number of ETI procedures	First-pass success (DL vs VL)	p Value	Comments
Studies showing higher first-pass success rates with VL
Lakticova	Glidescope	Fellow	Single-centre	Before/after	140	54% vs 79%	0.0001
Kory	Glidescope	PCCM fellow	Single-centre	Retrospective	138	68% vs 91%	<0.01
Silverberg	Glidescope	PCCM fellow	Single-centre	Randomised	117	40% vs 74%	<0.01
Mosier	Glidescope/CMAC	PCCM/CCM fellow	Single-centre	Retrospective	290	60.7% vs 78.6%	0.009
Vassiliadis	CMAC	Mixed	Single-centre	Retrospective	619	85% vs 81,6%	0.023
Griesdale	Glidescope	Non-anaesthesiology residents	Single-centre	Randomised	40	95% vs 58%	0.03
Studies showing similar or higher first-pass success rates with DL
Michailidou	Glidescope/CMAC	PGY	Single-centre	Prospective observational	709	71% vs 76%	0.17	Trauma centre
Ural	Glidescope	Residents in various fields	Single-centre	Before/after	103	73% vs 76%	0.66
De Jong	McGRATH MAC	Mixed	Single-centre	Before/after	210	69% vs 79%	0.09
Noppens	CMAC	Mixed	Single-centre	Before/after	274	79% vs 88%	0.08
Platts-Mills	Glidescope	Residents	Single-centre	Prospective observational	280	84% vs 81%	0.59	Trauma centre
Yeatts	Glidescope	Residents	Single-centre	Randomised	623	81% vs 80%	0.46	Trauma centre

CCM, critical care medicine; DL, direct laryngoscopy; ETI, endotracheal intubation; PCCM, pulmonary critical care medicine; PGY, post-graduate year physicians; VL, videolaryngoscopy.