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Peripartum changes in gastric emptying.
B K Sandhar1, R H Elliott, I Windram
1Department of Anaesthesia, Leicester Royal Infirmary.
Anaesthesia
|March 1, 1992
Summary
Pregnancy does not significantly alter gastric emptying in healthy women. This study measured gastric emptying in women during late gestation, postpartum, and post-recovery, finding no significant changes.
Area of Science:
- Gastroenterology
- Obstetrics and Gynecology
- Physiology
Background:
- Gastric emptying is crucial for nutrient absorption and can be influenced by physiological changes.
- The peripartum period involves significant hormonal and physical shifts that may affect gastrointestinal function.
Purpose of the Study:
- To investigate the impact of pregnancy on gastric emptying rates.
- To establish baseline gastric emptying in the peripartum period and compare it to a non-pregnant state.
Main Methods:
- Applied potential tomography was utilized to sequentially measure gastric emptying.
- Measurements were taken in 10 healthy women at 37-40 weeks gestation, 2-3 days postpartum, and after 6 weeks postpartum (control).
Main Results:
- Mean times to 50% gastric emptying were 15 min (gestation), 11 min (postpartum), and 15 min (control).
- No statistically significant changes in gastric emptying were observed across the measured periods.
- Power analysis confirmed the study design was adequate to detect an 8-minute difference.
Conclusions:
- Pregnancy does not appear to cause a statistically significant alteration in gastric emptying in healthy women.
- Further research may be warranted to explore subtle changes or effects in specific patient populations.