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Quantitative Ultrasound Assessment of Gastric Volume in Pregnant Women at Term

Pregnancy Clinical Trial

Official title:
Quantitative Ultrasound Assessment of Gastric Volume in Pregnant Women at Term

Clinical Trial Summary

Solid food or fluid residue in the stomach is always a major concern when patients need medical procedures under sedation or general anesthesia, due to the high risk of pulmonary aspiration of the stomach contents. This is especially important in emergency procedures, when a fasting period is not observed. The aspiration of the stomach contents into one's lungs can lead to serious complications (such as severe respiratory failure). Information from a bedside ultrasound assessment of the stomach may be a very useful tool to decide whether or not it's safe to proceed, cancel or delay a surgical procedure.

The investigotrs hypothesize that a mathematical model can be constructed to predict clear fluid volume in the stomach of non-labouring pregnant patients, as it has been developed in healthy adult volunteers.

Clinical Trial Description

Food residue in the stomach of patients scheduled to have surgery is considered a major risk factor for pulmonary aspiration of gastric contents. The resulting respiratory compromise after aspiration is associated with significant morbidity and mortality. The risk of pulmonary aspiration is especially important in pregnant women, as they may often require surgery without having observed appropriate fasting. A bedside ultrasound assessment of the status of the gastric content would be of great value for the clinician. This technique has recently been shown very promising in non-pregnant patients and it is important to study its feasibility in the pregnant population.

In this study, patients fast overnight and are randomized to the following groups: empty, or various volumes of fluid (50, 100, 200, 300 or 400mL of apple juice before scanning). Their gastric contents are then assessed by an anesthesiologist, using ultrasound. The investigators aim to evaluate a standardized quantitative ultrasound assessment of gastric volume in non-labouring pregnant women. ;

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Investigator)

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01980108
Study type Interventional
Source Samuel Lunenfeld Research Institute, Mount Sinai Hospital
Contact
Status Completed
Phase N/A
Start date October 2013
Completion date February 2016
View Details
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