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Chronological development of the fetal stomach assessed using real-time ultrasound
S Nagata1, T Koyanagi, N Horimoto
1Department of Gynecology and Obstetrics, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
Insights
Fetal stomach growth follows distinct phases during gestation. Real-time ultrasound reveals critical developmental points influencing gastric function from 16 to 41 weeks.
Area of Science:
- Perinatology
- Fetal Development
- Gastroenterology
Background:
- Understanding fetal gastrointestinal development is crucial for assessing fetal well-being.
- The dynamic changes in fetal stomach size and function require detailed investigation.
Purpose of the Study:
- To investigate the chronological changes in fetal stomach dimensions.
- To identify critical gestational age points influencing fetal gastric development.
Main Methods:
- Real-time ultrasound imaging was used to measure maximum longitudinal and anteroposterior gastric dimensions.
- Data were collected from 618 fetuses between 16 and 41 weeks of gestation.
Main Results:
- Three critical gestational age points were identified: 26-27, 32-33, and 36-37 weeks.
- Fetal stomach dimensions exhibited distinct growth patterns, including periods of increase, stability, and decrease.
- Four developmental phases of fetal gastric function were proposed based on these critical points.
Conclusions:
- Fetal gastric development is characterized by distinct phases linked to specific gestational ages.
- These findings provide insights into the functional maturation of the fetal stomach in utero.
- The identified critical points may serve as markers for monitoring normal fetal gastric development.
Abstract:
To elucidate processes involved in the developing fetal stomach in utero, we examined chronological changes in maximum longitudinal and anteroposterior gastric dimensions in 618 fetuses from 16 to 41 weeks of gestation, using real-time ultrasound. Three statistically critical points were evident at 26-27, 32-33, and 36-37 weeks of gestation. Both dimensions increased from 16-17 to 26-27 weeks, remained fairly constant between 26-27 and 32-33 weeks, increased again from 32-33 to 36-37 weeks, and then decreased from 36-37 weeks onwards. These findings suggest that there are four different phases underlying the development of gastric function in the human fetus, corresponding to the time-periods divided by the three critical points of gestational age.