Mar 3, 2025 · What Is an Atrial Septal Defect? An atrial septal defect, or hole between your two atria, allows abnormal blood flow between them. An atrial septal defect (ASD) is a hole in the …

The ostium secundum atrial septal defect is the most common type of atrial septal defect and comprises 6–10% of all congenital heart diseases. It involves a patent ostium secundum (that …

Small ASDs that are discovered in infants often close or narrow on their own. There isn't any medicine that will make the ASD get smaller or close any faster than it might do naturally. If …

Aug 7, 2023 · There are five types of atrial septal defects ranging from most frequent to least: patent foramen ovale, ostium secundum defect, ostium primum defect, sinus venosus defect, …

Jan 23, 2024 · Types of atrial septal defects (ASDs) include: Secundum. This is the most common type of ASD. It occurs in the middle of the wall between the upper heart chambers. This wall is …

The types of atrial septal defect include: Secundum: A hole in the center of the atrial wall. This is the most common type of ASD. Primum: An opening near the lower portion of the atrial wall …

Dec 14, 2025 · As a baby's heart develops during pregnancy, several openings in the wall divide the upper chambers of the heart (atria). These openings normally close during pregnancy or …

A hole in the septum between the heart's two upper chambers is called an atrial septal defect (ASD). A hole in the septum between the heart's two lower chambers is called a ventricular …

There are four types of ASDs. The most common is the secundum ASD (75%). Coronary sinus (<1%) ASD. Each is unique not only in its location and size but in how it “acts” and how it is …

There are three common types of atrial septal defect (ASD): Passive blood flow through the heart is driven by pressure differences. Blood flows across heart valves or other orifices from one …