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

Zhenmeng Wang

Status: Unknown

Conditions: Gastroesophageal Reflux

Treatments: Procedure: spontaneous ventilation; Procedure: control ventilation

Study type: Interventional

Funder types: Other

Identifiers

NCT02441257

EHBH

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 200 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• patients for lower extremity operations;
• patients for urological operations;
• patients for gynecological operations.

Exclusion criteria

• gastroesophageal reflux disease;
• body mass index more than 30.

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: Quadruple Blind

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200 participants in 1 patient group

control ventilation

Experimental group

Description:

patients are scheduled to receive control or spontaneous ventilation

Treatment:

Procedure: control ventilation

Procedure: spontaneous ventilation