Clinical Trial: Gastroesophageal Reflux During LMA in Control Ventilation (LMA, Laryngeal Mask Airway)

Study Status: Not yet recruiting
Recruit Status: Unknown status
Study Type: Interventional

Official Title: Incidence of Gastroesophageal Reflux During LMA Application in Control and Spontaneous Ventilation

Brief Summary: Laryngeal mask airway is seldom used for control ventilation in America, while it is popular in China. The question is whether the incidence of gastroesophageal reflux in control ventilation is really higher than in spontaneous ventilation. So the investigators combine the third generation laryngeal mask and catheter-based Digitrapper ph-Z monitor system to evaluate the exact incidence of gastroesophageal reflux in these two groups.

Detailed Summary: Patients scheduled for LMA ventilation are divided into two groups randomly, control ventilation group and spontaneous ventilation group. After the third generation laryngeal mask is inserted, catheter-based Digitrapper ph-Z monitor system is applied to measure the exact incidence of gastroesophageal reflux in these two groups.
Sponsor: Zhenmeng Wang

Current Primary Outcome: incidence of gastroesophageal reflux of participants [ Time Frame: participants will be monitored for the duration of laryngeal mask application, an expected average of 1.5 hours ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Eastern Hepatobiliary Surgery Hospital

Dates:
Date Received: January 25, 2015
Date Started: August 2015
Date Completion: October 2016
Last Updated: May 11, 2015
Last Verified: May 2015