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                  Implantable Cardioverter - 
                    Defibrillators (Icds) | 
                 
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            | ICDs are useful in preventing sudden death in patients with known, sustained ventricular tachycardia or fibrillation. Studies have shown ICDs  to have a role in preventing cardiac arrest in high-risk patients | 
           
          
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                  Coronary Angioplasty /  
                    Bypass Surgery | 
                 
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            | A coronary angioplasty is a procedure used to widen blocked or narrowed coronary arteries (the main blood vessels supplying the heart). The term 'angioplasty' means using a balloon to stretch open a narrowed or blocked artery. | 
           
          
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                  Balloon Mitral Valvuloplasty | 
                 
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            | A balloon valvotomy is a minimally invasive procedure. A doctor uses a thin flexible tube (catheter) that is inserted through an artery in the groin or arm and threaded into the heart. When the tube reaches the narrowed mitral valve, a balloon device located on the tip of the catheter is quickly inflated. | 
           
          
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