Related Experiment Videos
The position and mobility of the duodenum in children
Insights
Pediatric duodenal position and mobility were assessed using upper gastrointestinal series. Findings help differentiate normal infant duodenal mobility from malrotation, crucial for accurate diagnosis.
Area of Science:
- Pediatric radiology
- Gastrointestinal imaging
Background:
- Accurate assessment of duodenal anatomy is critical in pediatric patients.
- Malrotation can present with subtle duodenal positional abnormalities.
Purpose of the Study:
- To establish normal duodenal landmarks and duodenojejunal flexure mobility in children.
- To differentiate normal infant duodenal mobility from signs of malrotation.
Main Methods:
- Upper gastrointestinal series performed on 43 control children (neonate to 17 years).
- Manual displacement of the duodenojejunal flexure assessed.
- Comparison with 35 children with surgically confirmed malrotation.
Main Results:
- Nine criteria identified for detecting subtle duodenal position abnormalities.
- Normal duodenojejunal flexure is highly mobile in neonates (<4 months), often displaceable right of the spine.
- Mobility significantly decreases after 4 years of age.
Conclusions:
- Mobile duodenum in infancy on fluoroscopy or with feeding tubes is not necessarily indicative of malrotation.
- Established criteria aid in diagnosing duodenal malrotation in pediatric patients.
Abstract:
Forty-three control patients (neonate to 17 years old) were studied by upper gastrointestinal series to determine the position of key duodenal landmarks and the mobility of the duodenojejunal flexure with manual displacement. These results were compared with the duodenal positions of 35 children of similar ages with surgically documented malrotation. Nine criteria were identified as a useful means of detecting subtle abnormalities of duodenal position. The normal duodenojejunal flexure was found to be readily displaceable in neonates and could be pushed to the right of the spine in over two-thirds of patients less than 4 months old. Over 4 years of age, mobility was very limited. A mobile duodenum discovered on fluoroscopic examination or by positioning of a transpyloric feeding tube should not be considered indicative of malrotation in infancy.