Secondary End Point Time at which thumb adductor twitch measurement disappears (3rd consecutive measure with a twitch at 0) Mean minimal twitch measurement for those patients in who twitch measurement does not disappear Concordance study between twitch measurement and bowel peristalsis XML File Identifier: 1vUwHz2uUXeSc7soLu1cQwRAfcM= Page 15/24 ultrasound score.