118 -5 (79) 2025 - Usmonkulov M., Rabbimova D. - THE ROLE OF INTESTINAL BARRIER DYSFUNCTION IN THE PROGRESSION OF CONGENITAL HEART DEFECTS IN CHILDREN

THE ROLE OF INTESTINAL BARRIER DYSFUNCTION IN THE PROGRESSION OF CONGENITAL HEART DEFECTS IN CHILDREN

Usmonkulov M. - Samarkand State Medical University

Rabbimova D. - Samarkand State Medical University

Resume

Congenital heart defects (CHD) are the most common congenital anomalies and a significant factor in morbidity and mortality in pediatric practice. Despite the fact that most clinical approaches focus on cardiovascular complications, evidence is emerging indicating the important role of extracardiac factors, especially involvement of the gastrointestinal tract, in the progression of the disease. In children with CHD, chronic hypoxia, systemic inflammation, and surgical stress contribute to intestinal dysbiosis and disruption of the integrity of the intestinal epithelial barrier. Barrier dysfunction facilitates bacterial translocation, endotoxemia, and systemic immune activation, which increases the risk of perioperative infections, multiple organ failure, and adverse neurodevelopments. Moreover, metabolites produced by the intestinal microbiota, such as short-chain fatty acids and trimethylamine N-oxide (TMAO), can directly affect the function of the cardiovascular system. This review summarizes current data on the pathophysiology of intestinal barrier disorders in CHD, its immunological and metabolic consequences, as well as clinical correlations. A deeper understanding of the mechanisms of the gut–heart axis may contribute to the development of new therapeutic strategies aimed at preserving intestinal barrier function and improving long-term prognosis in this vulnerable group of patients.

Keywords: congenital heart disease, children, microbiota, intestinal barrier

First page

583

Last page

587

For citation:Usmonkulov M., Rabbimova D. - THE ROLE OF INTESTINAL BARRIER DYSFUNCTION IN THE PROGRESSION OF CONGENITAL HEART DEFECTS IN CHILDREN//New Day in Medicine 5(79)2025 583-587 https://newdayworldmedicine.com/en/new_day_medicine/5-79-2025

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