Lung Separation in the Morbidly Obese Patient

Table 1

Characteristics of the bronchial blockers.

	Cohen blocker	Arndt blocker	Fuji uniblocker	EZ blocker
Size	9 F	5 F, 7 F, and 9 F	9 F	7 F
Balloon shape	Spherical	Spherical or elliptical	Spherical	Spherical
Guidance mechanism	Wheel device	Nylon wire loop	None, preshaped tip	None
Smallest recommended *SLET for coaxial use	9 F—8.0 SLET	5 F—4.5 SLET; 7 F—7.0 SLET; 9 F—8.0 SLET	9 F—8.0 SLET	7.5
Murphy eye	Present	Present in 9 F	Not present	No
Center channel	1.6 mm I.D.	1.4 mm I.D.	2.0 mm I.D.	1.4 mm I.D.

*SLET = Single-lumen endotracheal tube.