As a local leader in cardiology, Dr. Chesnie offers some of the most advanced treatment options available in medicine today. Here are a few of them: Pacemakers ­ For slow or irregular heartbeat, this small device is implanted to electrically monitor and control your heartbeat. Implantable Cardioverter Defibrillator (ICD) ­ In a short procedure, Dr. Chesnie can implant this small lifesaving device that has versatile pacing techniques as well as the ability to shock the heart if it should stop. Dr. Chesnie pioneered this procedure in Orange County in 1987. Biventricular Implantable Pacemaker and Defibrillator ­ Similar to pacemaker and ICD implantation, but with electrical leads going to both the left and right ventricles. This improves filling of the heart, contracture of the heart and cardiac output. These are new technologies that Dr. Chesnie pioneered at Hoag Memorial Hospital in 2001. Improves quality of life and reduces the number of hospital days. Dr. Chesnie was the first doctor in Orange County to perform this procedure as well as the first at Hoag Memorial Hospital. This procedure has a 97% success rate for certain arrhythmias. Expert Medication Programs ­ Arrhythmia drugs and other heart medications are very useful tools for heart problems, and they require a great deal of respect, training and experience to be used successfully.