Effect of the laryngeal mask airway on lower oesophageal sphincter pressure in patients during general anaesthesia.
rct · Level II
Where this comes from
- Record sourced from PubMed, PMID 1419440.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
We have studied the tone of the lower oesophageal sphincter (LOS) in 40 adults undergoing routine body surface surgery and allocated randomly to receive anaesthesia either by face mask and Guedel airway or by laryngeal mask airway. In the laryngeal mask group there was a mean (SEM) decrease in barrier pressure (LOS minus gastric pressure) of 3.6 (1.4) cm H2O, compared with a mean increase of 2.2 (1.2) cm H2O in the face mask group (P < 0.005).
Medical subject headings
- Anesthesia, General
- Esophagogastric Junction
- Laryngeal Masks