Laryngeal Mask in Upper Gastrointestinal Procedures
Status:
Terminated
Trial end date:
2019-04-10
Target enrollment:
Participant gender:
Summary
Diagnostic and operative procedures of upper gastrointestinal (GI) tract are very common in
all patients. Some procedures are difficult to tolerate because of long duration, prone
position or significant stimulation of the upper airways. An example are endoscopic
retrograde cholangiopancreatography (ERCP) and endoscopic pancreatic ultrasound.
The procedures are generally performed with deep sedation. Many pharmacologic regimens are
available and described in literature. The investigator's institute adopts propofol target
controlled infusion (TCI), which usually guarantees unconsciousness and unresponsiveness of
patients. The main adverse event is dose-related respiratory depression. Pre-existing reasons
for hypoventilation can exacerbate this event, especially in the elderly and the chronic
obstructive pulmonary disease-patients. Laryngeal mask (LMA) is a useful tool to apply a
pressure support ventilation. One specific type of LMA allows to separate the gastric and
respiratory tract and, allows the anesthesiologist to support patient's ventilation as (and
only if) necessary.