ASD Device Closure is a treatment option that can be used to repair abnormal openings as well as gaps around prosthetic valves that result after surgery in the heart.
Some facts about ASD Device Closure:
ASD or atrial septal defect is a birth defect of the heart in which there is a hole in the wall between the two upper chambers of the heart.
Entry of blood from the left atrium (left upper chamber) to the right atrium (right upper chamber) is caused by this.
It can increase the pressure in the lungs and cause damage to blood vessels of the lungs in the long run when the flow is large.
Although small ASDs can be left alone, large ASDs should be closed by open heart surgeries or device closure of ASD.
A device is introduced through the blood vessel of the groin in this procedure
However, all ASDs are not suitable for device closure.
Preparation for ASD Device Closure:
Inform your health care provider if you have ever had a problem with sedation or if you have allergies.
Health problems, like diabetes or kidney problems should also be informed to your health care provider.
Tell your provider if you are pregnant or think you may be pregnant.
Eating or drinking anything after midnight the night before the procedure should be avoided.
An echocardiogram test will be done to decide the suitability of ASD for device closure.
A special echocardiogram known as transesophageal echocardiogram (TEE) is used in addition to a routine echocardiogram done from the chest, to assess the finer details of the ASD.
The exact location of the defect, and the distance from other important parts of the heart like heart valves and aorta are measured as a reasonable distance from all these vital structures is required to place the device in order to avoid immediate and long term complications.
Procedure for ASD Device Closure:
The ASD device is folded like an umbrella and placed into the heart using a tube known as catheter.
ASD device is composed of two discs like a clam shell, one for the left side of the defect and another for the right side, with a small connection link in between.
A small hole is made in the skin of the groin under local anesthesia to insert the folded device loaded inside a tube.
Live X-ray imaging is used in a special facility room called cardiac catheterization laboratory to guide it to the heart.
Position is further confirmed by echocardiogram, ultrasound imaging of the heart once the device has crossed the ASD.
First the left sided disc is opened from the catheter used for introduction after confirmation of position.
Then the right sided disc is also opened.
Echocardiogram is done again once both discs are in position to check for any remaining leaks and whether the position of the device is acceptable.
Make sure that it should not be interfering with the function of the nearby valves.
The device is released from the delivery system if everything is fine and the delivery system is withdrawn and taken out.