The right superior vena cava connects to the left atrium of the heart. This connection allows oxygen-depleted blood from the upper body to enter the left atrium and be pumped to the rest of the body.

The symptoms of right superior vena cava connecting to left-sided atrium are usually not apparent until adulthood. Symptoms may include shortness of breath, fatigue, palpitations, chest pain, dizziness, and fainting. In some cases, the condition may cause heart failure or stroke.

Right superior vena cava connecting to left-sided atrium is a rare congenital heart defect known as a partial anomalous pulmonary venous connection (PAPVC). It occurs when the pulmonary veins, which normally carry oxygenated blood from the lungs to the left atrium, are connected to the right atrium instead. The exact cause of this defect is unknown, but it is thought to be due to abnormal development of the pulmonary veins during fetal development.

The most common treatment for a right superior vena cava connecting to left-sided atrium is a procedure called an atrial septal defect (ASD) closure. This procedure involves closing the hole in the atrial septum with a device such as a patch or a device that is inserted through a catheter. Other treatments may include medications to reduce the risk of blood clots, or surgery to repair the defect.

1. Congenital heart defects
2. Abnormalities in the development of the heart
3. Abnormalities in the structure of the heart
4. Abnormalities in the blood vessels
5. Genetic disorders
6. Certain medications
7. Radiation therapy
8. Infections
9. Trauma to the chest

No, there is no cure or medication for this condition. It is a congenital heart defect that requires surgical intervention to correct.