Significance of Follow-Up Ultrasonography 24 Hours Post-Reduction in Detecting Intussusception Recurrence
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Updated: Oct 5, 2025
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Published on: January 7, 2019
Sujin Kim1, HyeJi Lim1, Sowon Park1
1Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Korea.
Insights
Twenty-four-hour follow-up ultrasonography (US) is valuable for detecting early intussusception recurrence in children. This imaging helps identify at-risk patients sooner, improving management and outcomes.
Area of Science:
- Pediatric Gastroenterology
- Medical Imaging
- Surgical Outcomes
Background:
- Intussusception is a common surgical emergency in children.
- Early detection of recurrence is crucial for optimal patient management.
- The role of routine post-reduction imaging remains under investigation.
Purpose of the Study:
- To evaluate the significance of 24-hour post-reduction ultrasonography (US) in pediatric intussusception.
- To determine if routine follow-up US impacts the detection of early recurrence.
Main Methods:
- Retrospective review of 229 pediatric patients with intussusception treated with saline reduction.
- Comparison of recurrence rates between groups with and without 24-hour follow-up US.
- Stratified analysis of recurrence based on follow-up imaging protocols.
Main Results:
- No significant differences in baseline characteristics between recurrence and non-recurrence groups.
- Patients undergoing 24-hour follow-up US had a higher detected recurrence rate (25.8%) compared to those without (12.2%).
- Specific sonographic findings were significant in early recurrence detection, supporting the 24-hour protocol.
Conclusions:
- Twenty-four-hour follow-up US is a valuable tool for identifying early intussusception recurrence in pediatric patients.
- Implementing a 24-hour follow-up US protocol can aid in timely intervention for recurrent intussusception.
Purpose:
The objective of this study was to identify the significance of 24-hour post-reduction ultrasonography (US) in pediatric patients with intussusception.
Methods:
A total of 229 patients with intussusception who were treated with saline reduction at Severance Children's Hospital between January 2014 and September 2020 were retrospectively reviewed. The 229 patients with successful saline reduction were divided into two groups: a recurrence at 24 hours group (R, n=41) and a non-recurrence group (NR, n=188). The full patient sample was divided into two groups: follow-up US (FU) or no follow-up US (NFU); the recurrence group was divided into follow-up (R-FU) and non-follow-up (R-NFU) subgroups, and stratified analyses were performed.
Results:
There were no significant differences in age, sex, laboratory findings, symptoms, and sonographic findings between the NR and R groups. In the R group, 24 patients underwent follow-up US, and 17 patients did not. Specific sonographic findings were statistically significant in the R-FU group compared to the R-NFU group (p=0.002). The R-FU group had fewer admissions (p=0.012) and longer mean hospitalization times (p<0.001) than the R-NFU group. The NFU group had a 12.2% recurrence rate, while the R-FU group recurrence rate was 25.8% (p=0.0099), suggesting that the omission of some recurrent events and follow-up US was a significant variable in the recurrence of intussusception. The median time to recurrence was 21 hours which supports the 24-hour follow-up protocol.
Conclusion:
Twenty-four-hour follow-up US was shown to be valuable for detecting early recurrence of intussusception.
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