An implantable cardioverter-defibrillator (ICD) is a device used to monitor heartbeat and heart rhythm. It is placed under the skin and attached to the heart through the veins with small wires. The device emits an electrical pulse if the heart beats with a dangerous rhythm or if the heart stops. The electrical pulse shocks the heart back to a normal rhythm.
Edwin Yih-Jen. Kok, MD
- internal medicine
Location and Office HoursSouthern California Heart Center
506 W Valley
San Gabriel, CA 91776
- Anthem Blue Cross of California
- Blue Shield of California
- CIGNA HealthCare
- Care 1st Health Plan
- Great-West Healthcare CIGNA
- Health Net
- LA Care Health Plan
- Alhambra Hospital Medical Center
- Garfield Medical Center
- Greater El Monte Community Hospital
- Monterey Park Hospital
- Pacific Alliance Medical Center
- San Gabriel Valley Medical Center
What is an implantable cardioverter-defibrillator?
Piedmont Heart Institute answered
How are anomalous coronary arteries and fistulas treated?
Sometimes children are born with an abnormal placement of the arteries that supply the heart with blood, the coronary arteries. Additionally, abnormal branches from the coronary arteries, or fistulas, may be present.
Coronary arteries arising from an abnormal place may require surgical re-implantation or bypass. However, not all anomalous coronary arteries require surgery if the treating physician feels that the blood flow to the heart is not at risk. Often, it can be very difficult to determine the overall risk of sudden death in a patient with anomalous coronary arteries.
Many coronary artery fistulas may spontaneously go away over time. Large coronary artery fistulas may be occluded (blocked off) in a hospital’s catheterization lab using a thin tube (called a catheter) to place special metallic coils or devices to fill the abnormal vessel. Alternately, coronary artery fistulas may require surgical ligation (closure).
If the heart has sustained severe damage, cardiac transplantation may be the only treatment option.
What is diastolic dysfunction?
Diastolic dysfunction is abnormal function of the heart during its relaxation phase, between beats, called diastole. While the heart's ability to contract and pump blood may be maintained, its ability to relax and fill with blood is compromised. Filling of the heart’s lower chambers (ventricles) is impaired because the chamber is stiff (non-compliant), due to thickening (hypertrophy) or diseased heart muscle (cardiomyopathy). It may also be due to stiffening of the sac around the heart (pericardium). Though the heart’s ability to contract may be preserved, diastolic pressure is elevated and cardiac output reduced.
See all Heart Disease questions