[Does a tracheal bifurcation shift upward due to increased intraabdominal pressure during laparoscopic surgery?].
To evaluate the influence of increased intraabdominal pressure on a position of tracheal bifurcation, we measured the distance from the tracheal bifurcation to the tip of the endotracheal tube which is fixed on a patient's mouth during a laparoscopic surgery. The distance decreased from 3.5 +/- 1.9 to 3.1 +/- 1.9 cm (P < 0.05) at mean intraabdominal pressure of 8.7 mmHg. This result suggests that the ventilation may become difficult due to the occlusion of the tip of the endotracheal tube by a tracheal bifurcation or due to inadvertent single lung ventilation under inappropriately deep intubation.
Department of Anesthesiology, Odawara Municipal Hospital.
K
K
Kurahashi
M
M
Inoue
G
G
Yoshida
Y
Y
Abe
H
H
Maruta
H
H
Takahashi
Y
Y
Usuda
D000005:Abdomen / Q000502:physiology*; D000328:Adult; D000368:Aged; D001980:Bronchi / Q000502:physiology*; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D011312:Pressure