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Published in: BMC Gastroenterology 1/2018

Open Access 01-12-2018 | Research article

Children with cyclic vomiting syndrome: phenotypes, disease burden and mitochondrial DNA analysis

Authors: Ziqing Ye, Aijuan Xue, Ying Huang, Qiye Wu

Published in: BMC Gastroenterology | Issue 1/2018

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Abstract

Background

Cyclic vomiting syndrome (CVS) is characterized by repeated, stereotypical vomiting episodes. It is possibly associated with mitochondrial DNA (mtDNA) variants. We examined the phenotype, disease burden, treatment and performed mtDNA analysis in pediatric CVS.

Methods

This retrospective study included 42 children with CVS in a tertiary care center. Information regarding medical history, clinical features, laboratory tests, and treatment were collected. mtDNA sequencing was performed among 13 patients.

Results

Mean age of onset among patients was 4.0±3.4 years, and mean age at diagnosis was 6.7±4.2 years. CVS episodes in onset and features were stereotypic. Recognizable prodromes were reported in 54.8% patients. Neuroimaging showed previously unknown intracranial abnormalities. Gastrointestinal infection was found in four patients. Mean duration of hospitalization was 7.0±2.4 days, and mean hospitalization cost was 10,891 RMB. Sequencing showed that 4/13 patients had C16519T mtDNA polymorphism, and 2/13 patients had G3010A mtDNA polymorphism.

Conclusions

Cyclic vomiting syndrome is a disabling disorder, which causes huge disease burdens to the patients and their families. Early clinical suspicion and prompt diagnosis are crucial. mtDNA polymorphisms were found in some patients, but they were not significantly associated with pediatric CVS.
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Metadata
Title
Children with cyclic vomiting syndrome: phenotypes, disease burden and mitochondrial DNA analysis
Authors
Ziqing Ye
Aijuan Xue
Ying Huang
Qiye Wu
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Gastroenterology / Issue 1/2018
Electronic ISSN: 1471-230X
DOI
https://doi.org/10.1186/s12876-018-0836-5

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