Association of air temperature with pediatric intussusception in northeastern China: A 10-year retrospective study

Epidemiological characteristics, treatment, and outcomes of 586 cases of intussusception: a 4-year retrospective study in China

Objective

This study aims to retrospectively analyze the epidemiological and clinical characteristics of acute intussusception in a tertiary-care pediatric hospital in China over 4 years and evaluate the effectiveness and recurrence of fluoroscopy-guided pneumatic reduction (FGPR) and ultrasound-guided hydrostatic reduction (UGHR).

Methods

This retrospective study was conducted from January 2019 to December 2022 involving children admitted and managed for acute intussusception in a tertiary-care pediatric hospital in China. The epidemiology, clinical features, and therapeutic effects were analyzed using IBM SPSS Statistics 20.0.

Results

The study included 401 boys (68.43%) and 185 girls (31.57%) aged from 2 months to 12 years. The most common symptoms reported were abdominal pain or paroxysmal crying (95.73%), vomiting (45.39%), and bloody stool (7.34%). Vomiting and bloody stool became atypical with increasing age (P < 0.001). The total success cases of reduction accounted for 563 cases (96.08%), and the recurrent cases accounted for 71 cases (12.12%). No significant difference was observed in the success or recurrence rates between FGPR and UGHR (P > 0.05). Abdominal pain was an independent protective factor for successful enema (P < 0.01, OR = 72.46), while bloody stool (P < 0.01, OR = 0.06) and older age were independent risk factors (P < 0.001, OR = 0.51). Of the 71 patients with recurrent intussusception, 29 were successfully reduced by enema, and the other 23 required surgical reduction. Twelve of the surgical cases were secondary intussusception, including three cases of Meckel's diverticulum, five cases of polyps, and four cases of non-Hodgkin lymphoma.

Conclusion

The epidemiological characteristics of children with intussusception in Xiamen showed peculiarity with a higher male-to-female ratio, older age at diagnosis, and no significant seasonality. Both FGPR and UGHR were effective and safe for intussusception, and surgical reduction was essential for patients with failed enema reduction.

Association of meteorological factors with paediatric intussusception in Hangzhou: an 8-year retrospective cohort study

OBJECTIVES

This study aimed to investigate the seasonality of paediatric intussusception and the associations between meteorological factors and paediatric intussusception in Hangzhou, as well as aimed to compare the variance in sex and disease type.

DESIGN

An 8-year retrospective study was conducted from January 2014 to December 2021 in the Children's Hospital of Zhejiang University, Hangzhou, China.

SETTING

This was a single-centre retrospective study review of intussusception cases in a large Children's Hospital in Hangzhou.

PARTICIPANTS

There were 17 674 patients with intussusception in this study.

METHODS

A Spearman correlation analysis and Poisson regression analysis were used to determine the association between weekly intussusception cases and meteorological factors. The seasonality of paediatric intussusception was demonstrated via the t-test and visualised.

RESULT

In January, May and December, there were relatively more intussusception patients. In February, there was a trough in the number of intussusception patients. Both the Spearman correlation analysis and Poisson regression analysis proved that weekly intussusception cases had significant associations with temperature (λ=-0.205, p<0.01; β=-0.080, p<0.01), feels-like temperature (λ=-0.214, p<0.01; β=-0.012, p<0.01), dew (λ=-0.249, p<0.01; β=0.095, p<0.01), humidity (λ=-0.230, p<0.01; β=-0.037, p<0.01), precipitation (λ=-0.148, p<0.01; β=-0.001, p<0.01), windspeed (λ=-0.135, p<0.01; β=0.005, p<0.01), visibility (λ=-0.206, p<0.01; β=-0.066, p<0.01), sea level pressure (λ=0.171, p<0.01; β=-0.004, p<0.01) and a total of 20 of 25 dynamic meteorological factors (p<0.05). These associations reflected gender differences but showed stronger associations in groups that were prone to recurrence.

CONCLUSIONS

Paediatric intussusception in Hangzhou showed a seasonal tendency. Additionally, intussusception was significantly associated with certain meteorological factors in all of the cases. These findings suggest that parents and paediatricians should be more vigilant about the occurrence of intussusception in children regarding seasonal change times and climate change times.

Process Management of Intussusception in Children: A Retrospective Analysis in China

OBJECTIVES

This was a retrospective analysis of the epidemiological features of pediatric intussusception, the effects of different management strategies and the factors affecting successful reduction.

METHODS

Using our hospital database, data on pediatric intussusception from January 2019 to December 2020 were extracted for analysis, including demographic data, size of intussusception, treatment method, and effects.

RESULTS

The number of children diagnosed with intussusception was 726 (782 episodes). In all, 394 (54.27%) of these children were male. The male to female ratio was 1.19:1. The peak of the onset age was between 3 and 4 years. In the single intussusception group, the successful reduction rate of cleansing enemas was 65.25%, that of air enemas was 95.80%, and that of B-ultrasound-guided hydrostatic enemas (B-USGHEs) was 96.04%. In the multiple intussusceptions group, the successful reduction rate of cleansing enemas was 43.9%, air enemas were 75%, and B-USGHE was 57.6%. There were no significant differences between the air enema and B-USGHE groups. The diameter and length were related factors influencing successful reduction (P ≤ 0.05). Fifty-three (7.53%) children had recurrent intussusception within 4 years, and all of them were following successful enemas. Thirty-one (3.40%) episodes were found to have spontaneously reduced. Five patients (0.7%) underwent surgery after the failure of air enemas or B-USGHE.

CONCLUSIONS

Pediatric intussusception in our region showed a sex ratio difference and age difference of onset. For single intussusceptions and multiple intussusceptions, the successful reduction rate of cleansing enemas means that some children may avoid radiation exposure. The diameter and length of intussusception were related factors influencing successful reduction in cleansing enema. There were no significant differences in successful reduction between air enemas and B-USGHE. Most recurrent intussusceptions can still be reduced, avoiding surgery.