Atrial septal defect, coronary sinus type (ASD-CS) is a rare congenital heart defect in which the atrial septum, the wall between the two upper chambers of the heart, is not completely formed. Instead, there is an opening between the two chambers that allows oxygen-rich blood from the left atrium to mix with oxygen-poor blood from the right atrium. This can lead to an increased risk of stroke, heart failure, and other complications.

The symptoms of Atrial septal defect, coronary sinus type may include:

-Shortness of breath
-Fatigue
-Palpitations
-Chest pain
-Swelling in the legs, ankles, and feet
-Heart murmur
-High blood pressure in the lungs (pulmonary hypertension)
-Irregular heart rhythm (arrhythmia)
-Heart failure
-Stroke

Atrial septal defect, coronary sinus type is a rare congenital heart defect caused by a malformation of the heart during fetal development. The exact cause of this defect is unknown, but it is believed to be due to a combination of genetic and environmental factors. Possible causes include:

1. Genetic mutations: Certain genetic mutations can cause the coronary sinus to form abnormally, leading to an atrial septal defect.

2. Chromosomal abnormalities: Chromosomal abnormalities, such as Down syndrome, can cause the coronary sinus to form abnormally.

3. Maternal infections: Maternal infections, such as rubella, during pregnancy can cause the coronary sinus to form abnormally.

4. Maternal drug use: Maternal drug use, such as alcohol or tobacco, during pregnancy can cause

1. Surgery: Open-heart surgery is the most common treatment for atrial septal defect, coronary sinus type. During the procedure, the surgeon will make an incision in the chest and then use a device to close the hole in the septum.

2. Transcatheter Closure: This is a minimally invasive procedure that involves inserting a device through a catheter into the heart to close the hole.

3. Medical Management: In some cases, medications may be prescribed to help manage symptoms and reduce the risk of complications. These may include medications to reduce the risk of blood clots, control arrhythmias, and reduce the risk of stroke.

1. Family history of congenital heart defects
2. Maternal diabetes
3. Maternal use of certain medications during pregnancy
4. Maternal exposure to certain environmental toxins during pregnancy
5. Maternal obesity
6. Maternal age over 35
7. Maternal alcohol use during pregnancy
8. Maternal smoking during pregnancy
9. Maternal use of certain illicit drugs during pregnancy
10. Maternal exposure to certain infections during pregnancy

Atrial septal defect, coronary sinus type is usually treated with surgery. The goal of the surgery is to close the hole in the septum and restore normal blood flow. Medications may be prescribed to help manage symptoms such as shortness of breath and fatigue. These medications may include diuretics, beta-blockers, and ACE inhibitors.