Imaging in pediatric disorders of the gut-brain interactions: current best practice and future directions.

INTRODUCTION: Disorders of Gut-Brain Interactions (DGBI) are a common clinical problem in children and pose significant challenges to the attending pediatrician. Radiological investigations are commonly ordered to evaluate these children. AREA COVERED: This review focuses on the current best practice of using radiological investigations in DGBIs and how novel radiological investigations could revolutionize the assessment and therapeutic approach of DGBI in children. EXPERT OPINION: We believe imaging in DGBI is still in its early stages, but it has the potential to revolutionize how we diagnose and treat children with DGBI. As the understanding of the gut-brain axis continues to grow, we can expect to see the disappearance of conventional imaging techniques and the emergence of more sophisticated imaging techniques with less radiation exposure in the future which provide more clinically meaningful information regarding the gut-brain axis and its influence on intestinal function. Some of the novel imaging modalities will be able to broaden our horizon of understanding DGBI in children providing more useful therapeutic options to minimize their suffering.

Functional Diarrhea in Children.

Functional diarrhea in children is a disease that has been focused on by both general pediatricians as well as pediatric gastroenterologists across the world. Although it is seen across the pediatric age group from late infancy to adolescence, most still believe that functional diarrhea only occurs in younger children. Recent epidemiological studies have shown that functional diarrhea is prevalent in all subcontinents. The classic clinical features include chronic loose stools with undigested food particles without growth faltering. Although known for long years, pathophysiological mechanisms and therapeutic options are not well explored, and the existing literature is outdated. In this article, authors review the available literature on functional diarrhea, with a reminder that a fresh look is needed to broaden the horizons of understanding of this disease.

Effect of Prior Symptomatic Dengue Infection on Dengue Haemorrhagic Fever (DHF) in Children.

Pathogenesis of dengue haemorrhagic fever is not fully understood, but it is thought that there is antibody enhancement during the secondary infection, which causes severe dengue haemorrhagic fever (DHF). Therefore, patients who have DHF should have a documented history of symptomatic dengue infection in the past. A retrospective descriptive-analytical study was conducted at the University Paediatric Unit at Lady Ridgeway Hospital for Children, Colombo, Sri Lanka. All children who had fulfilled the criteria for DHF admitted to the unit from April 2018 to September 2018 were recruited into the study. Relevant data were collected from bed head tickets. One hundred and eighty-four children were included in the final analysis. Thirty-three (17.9%) had a past history of documented symptomatic dengue infection, while 82.1% did not have a documented dengue infection. Twelve patients had dengue shock syndrome, and none of them had previously documented symptomatic dengue fever. Dextran was used in 96 patients in the critical phase. Twelve (42%) patients with past documented symptomatic dengue fever needed dextran while 84 (54.9%) patients without a documented past history of dengue fever needed dextran. In our clinical observation, we noticed that children with DHF mostly did not have a documented symptomatic prior dengue infection, while those with a documented symptomatic prior infection had a milder subsequent illness. In fact, the majority (82.1%) of patients with DHF did not have documented previous symptomatic dengue infection. It was also observed that the clinical course of subsequent dengue infection was less severe in patients with previously documented symptomatic dengue fever. This finding should be further evaluated in a larger scale study minimizing the all-confounding factors. This fact is more important in selecting recipients for vaccines against the dengue virus, which are supposed to produce immunity against the virus without causing the severe disease.

Quality of life and somatic symptoms in children with constipation: a school-based study.

OBJECTIVE: To assess the health related quality of life (HRQoL) and somatization in school children with constipation. STUDY DESIGN: This cross-sectional survey was conducted in children aged 13-18 years, in 4 schools in Gampaha district of Sri Lanka. Data were collected using a pretested, self-administered questionnaire with questions on bowel habits, somatization, and HRQoL. Constipation was diagnosed using Rome III criteria. RESULTS: A total of 1792 children were included in the analysis (males 975 [54.4%], mean age 14.4 and SD 1.3 years). One hundred thirty-eight (7.7%) fulfilled Rome criteria for constipation. Children with constipation had lower HRQoL scores for physical (83.6 vs 91.4 in controls, P < .0001), social (85.0 vs 92.7, P = .0001), emotional (73.6 vs 82.7, P =.0001), school functioning (75.0 vs 82.5, P < .0001), and lower overall scores (79.6 vs 88.0, P = .0001). HRQoL scores were lower in those with fecal incontinence and constipation compared with constipation alone (70.0 vs 81.1, P = .004). Patient perceived severity of abdominal pain (r = -0.22, P = .01) and severity of bowel symptoms (r = -0.22, P = .01) showed significant negative correlation with total HRQoL scores. Total somatization score also found to be negatively correlated (r = -0.47, P < .0001) with HRQoL. CONCLUSIONS: Children with constipation have lower HRQoL scores than controls in physical, social, emotional, and school functioning. They also have a wide range of somatic symptoms. These issues need to be addressed during clinical evaluation of children with constipation to understand the impact of the disease on the life of affected children and to provide optimal care.