Surgical Correction of an Atricular Border Defect in Adults

atrial septal defect in adults late diagnosis surgical tactics

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January 13, 2026

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Interatrial septal defect is the most common heart defect diagnosed in adults. Its frequency is 5-15% of all congenital heart defects. It is precisely in the older age group that congenital malformations are often combined with complex rhythm disturbances, which not only worsens the quality of life of patients but also significantly exacerbates the natural course of the disease, leads to rapid decompensation of blood circulation, and is a risk factor that increases patient mortality. Timely diagnosis and treatment of the disease play a significant role in preventing the development of life-threatening complications. Studying the problem of atrial septal defect in adults is crucial for doctors of all specialties, as this pathology ranks first among congenital heart defects in terms of prevalence.

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