[Emergency cricothyrotomy--puncture or anatomical preparation? Peculiarities of two methods for emergency airway access demonstrated in a cadaver model].
OBJECTIVE
The aim of the study was a demonstration of peculiarities of two invasive airway management methods performed by anesthesiology residents as a subgroup of emergency physicians.


METHODS
During an airway management training seminar,2 groups including 18 anaesthesiology residents and 2 students performed a simulated emergency surgical cricothyrotomy on unfixed cadavers. The more experienced physicians in group 2 started with a puncture technique preceding a blind surgical approach. The time needed to perform each procedure and resulting complications were analyzed.


RESULTS
The time taken ranged from 75 to 280 s (median 180 s) in group 1 and from 53 to 255 s (median 73 s) in group 2. The surgical approach caused "bleeding" in 40% (group 1) and 30% (group 2) and damage to the cartilages occurred in 20% and 30%, respectively. Punctures were performed within 10-36 s (median 25 s) and 70% were successful without complications.


CONCLUSIONS
Puncture of the cricothyroid membrane can serve as initial emergency approach or as intermediate airway access until a surgical method is available.
Mutzbauer
T S
TS
Abteilung Anästhesiologie und Intensivmedizin, Bundeswehrkrankenhaus Ulm. medicodent@t-online.de
Munz
R
R
Helm
M
M
Lampl
L A
LA
Herrmann
M
M
D000776:Anesthesiology / Q000193:education; D002102:Cadaver; D003413:Cricoid Cartilage / Q000601:surgery*; D004632:Emergency Medical Services; D006801:Humans; D007396:Internship and Residency; D007830:Larynx / Q000601:surgery; D012137:Respiratory System / Q000601:surgery*; D013961:Thyroid Gland / Q000601:surgery*
Notfallkoniotomie--Punktion oder chirurgisch-anatomische Präpariertechnik? Besonderheiten zweier Verfahren zur notfallmässigen Atemwegssicherung dargestellt am anatomischen Präparat.