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[Does a tracheal bifurcation shift upward due to increased intraabdominal pressure during laparoscopic surgery?]
K Kurahashi1, M Inoue, G Yoshida
1Department of Anesthesiology, Odawara Municipal Hospital.
Masui. the Japanese Journal of Anesthesiology
|October 1, 1995
Abstract:
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.