Tube migration during laparoscopic gynecological surgery

Area of Science:

• Anesthesiology
• Surgical Procedures

Background:

• Laparoscopic gynecological surgeries utilize Trendelenburg positioning and pneumoperitoneum.
• These procedures can lead to cephalad (upward) diaphragm movement.
• This movement may result in unintended endobronchial intubation.

Purpose of the Study:

• To investigate the effect of Trendelenburg positioning and pneumoperitoneum on tracheal carina position.
• To assess the risk of endotracheal tube migration during laparoscopic surgeries.

Main Methods:

• A study involving 50 ASA I/II patients undergoing laparoscopic ligation.
• Standardized anesthesia techniques were applied.
• Endotracheal tube (ETT) to carina distance was measured in supine, Trendelenburg, and post-pneumoperitoneum positions.

Main Results:

• Mean ETT-carina distance decreased significantly from 3.41 cm (supine) to 2.0 cm (5 min post-pneumoperitoneum) and 1.7 cm (25 min post-pneumoperitoneum).
• A P-value < 0.01 indicated statistical significance.
• After deflation, the carina moved back, with a mean distance of 2.5 cm (P < 0.05).

Conclusions:

• Pneumoperitoneum and Trendelenburg positioning in laparoscopic surgery are associated with cephalad carina migration.
• This migration poses a risk for endotracheal tube displacement.
• Clinical vigilance is recommended to prevent airway complications.