Sonographic findings predictive of the need for surgical management in pediatric patients with small bowel intussusceptions

Diagnostic value of the microcolon using ultrasonography in small bowel atresia

Background

Microcolon helps diagnose small bowel atresia (SBA) using contrast enema. However, there are no ultrasonography (US) microcolon criteria for diagnosing SBA. Therefore, this study aimed to evaluate colon accuracy and other characteristics for diagnosing SBA by US, using surgical or clinical information as the reference standard.

Methods

US was performed on 46 neonates aged ≤ 7 days old. In the study group (n = 15), neonates with SBA were confirmed following surgery. In the study group without SBA (n = 15), neonates with other gastrointestinal problems besides SBA were confirmed by surgical or clinical follow-up. Sixteen neonates without gastrointestinal problems were classified as the control group. The colonic diameter was measured, and colonic gas was sought and observed. Statistical analysis was performed to compare US parameters between the study group and other two groups. The optimal cut-off value of the colonic diameter for SBA diagnosis was obtained using receiver operating characteristic analysis.

Results

Colonic diameters (0.5 cm) in the study group (interquartile ranges [IQR], 0.5–0.6 cm) was significantly smaller than that in the group without SBA (0.9 cm; IQR, 0.8–1.2 cm) (P <  0.001) and in the control group (1.2 cm; IQR, 0.8–1.35 cm) (P < 0.001). Optimum cut-off value for diagnosing SBA was 0.65 cm (sensitivity, 90.3%; specificity, 86.7%; accuracy, 89.1%) for the colonic diameter. Combining microcolon and gas-negativity showed the best performance in SBA diagnosis using US, with increased accuracy (91.3%).

Conclusion

A colon < 0.65 cm in diameter should be called a microcolon; combining US with gas-negativity is an essential diagnostic basis for SBA.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12887-022-03629-z.

İnvajinasyonda Tedavi Yaklaşımı: Takip mi Cerrahi mı?

Objective: In this study, we describe the management and outcome of children with intussusception and analyze the sonographic findings that can be used to differentiate transient, self-limited small bowel intussusception from the cases with an indication for surgery. Material and Methods: We retrospectively reviewed the medical records of pediatric patients with the diagnosis of invagination who had been followed up in the pediatric surgery service between 2012-2017. Results: The median age was 39.5±35.9 (range 2-171) months. Among these patients, 57 (64%) had been followed up without surgery, and the remaining patients (n= 32, 36%) had undergone surgery. The median age of patients who had not undergone surgery was significantly greater than that of the patients who had undergone surgery (52.2±38.4 vs. 16.75±12.6; p

Management and Outcome of Pediatric Patients With Transient Small Bowel-Small Bowel Intussusception

OBJECTIVE

The aim of this study was to assess the management and outcomes of healthy pediatric patients diagnosed radiologically with transient and benign small bowel-small bowel intussusception (SB-SBI).

METHODS

Retrospective cohort study of healthy patients 0 to 18 years of age who presented to a children's hospital emergency department from January 1, 2005, to June 30, 2015, and had transient and benign SB-SBI characterized by spontaneous resolution (ie, transient), diameter of less than 2.5 cm, no lead point, normal bowel wall thickness, nondilated proximal small bowel, and no colonic involvement (ie, benign radiographic features). Charts were reviewed for demographics, clinical presentation, radiologic studies obtained, outcomes, and further management. Medical and radiologic records were also reviewed for 1 year after presentation for any subsequent pathologic diagnoses.

RESULTS

Sixty-eight patients were included in our study, with a total of 87 episodes of transient and benign SB-SBI on initial or follow-up examination. Overall, 39 patients (57%) were admitted to the hospital, and 38 patients (56%) had a surgical consultation. Twenty-four patients (35%) had further radiologic studies obtained, including computed tomography scans, esophagogastroduodenoscopy, Meckel's scan, barium swallow studies, and magnetic resonance imaging. All studies were negative for concerning pathology including apparent lead points. None of the patients required surgical intervention or had any complications.

CONCLUSIONS

Transient and benign SB-SBIs with reassuring radiologic and clinical features diagnosed in healthy pediatric patients are likely incidentally found and are unlikely to be associated with a pathologic lead point.

Can intussusceptions of small bowel and colon be transient? A prospective study

We performed a prospective study to explore a diagnosis and treatment protocol of transient intussusception in children (TIC). Totally, 143 children with intussusception who met the inclusion criteria were firstly divided into intussusception involving only the small bowel and intussusception involving the colon group. And in each group, they were further divided into short-segment (≤ 3.0 cm) and long-segment (> 3.0 cm) groups according to the length of intussusception. After a period of conservative treatment, the incidence of TIC, the incidence of surgery, and recurrence were collected and analyzed. Finally, we found that the incidence of TIC in the short-segment group of small bowel intussusception (96.29%) was significantly higher than that in other groups (P ≤ 0.001). Besides, the incidence of surgery and recurrence in this group was relatively low too. Therefore, we summarized the inclusion criteria and treatments to the short-segment group of small bowel intussusception as the suggested protocol to TIC.Conclusion: For cases of small bowel intussusception with no identified pathologic lead point, a short duration of symptoms, a length of ≤ 3.0 cm, a relatively abundant vascular flow signal, and a stable general condition, the spontaneous reduction could be expected and a period of conservative treatment with careful monitoring is recommended. What is Known: • The phenomenon of spontaneous reduction in intussusception (transient intussusception) among pediatric patients has been widely reported. • To distinguish the transient intussusception from the other types is important for the transient ones only need conservative treatment rather than enema reduction or surgery. What is New: • This is the first prospective study to explore a diagnosis and treatment protocol of transient intussusception in children. • Short-segment small bowel intussusceptions have a higher rate (96.29%) to get spontaneous reduction than the other types of intussusception.

Preliminary Investigation of the Diagnosis of Neonatal Congenital Small Bowel Atresia by Ultrasound

Purpose

To assess the diagnostic value of ultrasonography (US) for congenital small bowel atresia (SBA) in neonates and their sonographic characteristics.

Methods

A retrospective analysis was performed of 20 neonates who were confirmed with SBA by operation from March 2014 to January 2019. All the neonates have been scanned by US before surgery, and no one underwent barium enema or upper gastrointestinal imaging prior to US. Preoperation ultrasound characteristics about intestinal morphology and intestinal contents were collected, further to summarize the typical ultrasonic features of SBA.

Results

Five cases were duodenal atresia, and 15 cases were jejuno-ileal atresia. Distended proximal intestines, liquid with tiny points in it, can be found in 20 neonates. The small intestine without any gas can be found in 20 neonates. Microcolon, no gas and other contents in it, can be found in 16 cases.

Conclusions

The typical ultrasonic features of SBA include dilation in proximal intestines, small intestines, and microcolon. US is a promising modality in the clinical diagnosis of SBA.

Point-of-Care Ultrasonography for the Rapid Diagnosis of Intussusception: A Case Series

We present a case series describing an infant and a child who presented with abdominal discomfort and their conditions were diagnosed with intussusception by point-of-care ultrasound. These cases illustrate how point-of-care ultrasound led to the expeditious diagnosis of intussusception.

Childhood intussusception: a literature review

Background

Postlicensure data has identified a causal link between rotavirus vaccines and intussusception in some settings. As rotavirus vaccines are introduced globally, monitoring intussusception will be crucial for ensuring safety of the vaccine programs.

Methods

To obtain updated information on background rates and clinical management of intussusception, we reviewed studies of intussusception in children <18 years of age published since 2002. We assessed the incidence of intussusception by month of life among children <1 year of age, seasonality, method of diagnosis, treatment, and case-fatality.

Findings

We identified 82 studies from North America, Asia, Europe, Oceania, Africa, Eastern Mediterranean, and Central & South America that reported a total of 44,454 intussusception events. The mean incidence of intussusception was 74 per 100,000 (range: 9–328) among children <1 year of age, with peak incidence among infants 5–7 months of age. No seasonal patterns were observed. A radiographic modality was used to diagnose intussusception in over 95% of the cases in all regions except Africa where clinical findings or surgery were used in 65% of the cases. Surgical rates were substantially higher in Africa (77%) and Central and South America (86%) compared to other regions (13–29%). Case-fatality also was higher in Africa (9%) compared to other regions (<1%). The primary limitation of this review relates to the heterogeneity in intussusception surveillance across different regions.

Conclusion

This review of the intussusception literature from the past decade provides pertinent information that should facilitate implementation of intussusception surveillance for monitoring the postlicensure safety of rotavirus vaccines.

Sonographic diagnosis of juvenile polyps in children

The aim of this study was to assess the diagnostic value of ultrasonography for juvenile polyps in children and their sonographic characteristics. A retrospective analysis was performed of the ultrasound findings in 27 children who were diagnosed preoperatively with juvenile polyp within the intestinal tract by ultrasonography and then confirmed by colonoscopy, laparotomy and histopathology. The ultrasonic finding common to all polyps was an isolated intraluminal nodular or massive protrusion, associated with multiple mesh-like fluid areas of different sizes. In 25 children, surrounding pedicle-like low echoes of varying lengths were seen connecting with the polyps to form "mushroom" sign. The color Doppler showed abundant blood flow signals within all polyps and pedicles in a shape of a branch or an umbrella. For seven children with an intussusception, the polyp shadow was detected in the cervical part or interior of the intussusception. Ultrasonography is, thus, considered to be a feasible method for diagnosing intestinal juvenile polyp.