Cardiovascular disease(cardiomyopathy, myocardial infarction, heart failure)seriously endanger child health.Although the incidence in children is not very high, the prognosis is usually poor due to limited treatment options.With the rapid development of stem cell technology and regenerative medicine in recent years, stem cell transplantation has been proved to be able to promote cardiomyocyte regeneration, improve myocardial remodeling and left ventricular ejection fraction(LVEF), so as to alleviate cardiovascular diseases fundamentally.Mesenchymal stem cells(MSCs), a kind of pluripotent adult stem cell with profound self-renewal capacity and multi-directional differentiation potential, have been gradually applied in the treatment of children′s cardiovascular diseases, such as cardiomyopathy, myocardial infarction and end-stage heart failure, and initial success has now been achieved.This review is to summarize the advance of MSCs in the treatment of cardiovascular diseases in children.

The incidence of incomplete Kawasaki disease(iKD) has bean increasing year by year.Significant individual differences in manifestations, insidious onset, and lack of specific symptoms and effective diagnostic biomarkers often result in delayed diagnosis or misdiagnosis, which makes iKD children at higher risk of cardiovascular complications such as coronary artery dilation or coronary aneurysm and even secondary thrombosis or sudden death.The purpose of this review was to introduce the diagnosis and treatment of iKD, and thus provide evidence for clinicians.