November 15, 2010
Myocarditis Can Attack Hearts Without Warning
Young father receives leading-edge intervention prior to undergoing heart transplant
James "Jimmy" Armstrong hadn't missed a "Mac" in 28 years. At 44, he's one of the youngest "goats" in the Chicago Yacht Club. Sailors receive the designation of "goat" once they've completed 20 or more "Macs", the 333-mile boat race from Chicago to Mackinac, Michigan. Armstrong has sailed the race every year since he was 16. But, he wasn't among the sailors this past July. Instead, he was in intensive care awaiting heart transplant following a harrowing experience spurred by a severe case of myocarditis"”a little-known condition causing inflammation of the heart muscle.
Armstrong had no prior history of heart problems. However, persistent bouts of dizziness and nausea sent him into the emergency room of his suburban hospital on June 6. Cardiac imaging confirmed Armstrong had acute myocarditis. While not always life-threatening, in many cases it can lead to heart failure or sudden cardiac death. Physicians believe it is caused by either a viral, bacterial, or fungal infection; drug or chemical poisoning; or connective tissue diseases, such as lupus or rheumatoid arthritis.
According to Northwestern Medicine cardiologist William G. Cotts, MD, patients can often have fever, aches and severe fatigue similar to cold or flu-like symptoms. This can sometimes correct with no lasting damage. But in severe cases like Armstrong's there's often the presence of an irregular heartbeat and trouble breathing"”and symptoms usually present once the patient is already in heart failure.
This was the case with Armstrong. When he was referred to Northwestern Medicine's cardiac specialists at the Bluhm Cardiovascular Institute, the myocarditis had so aggressively deteriorated his heart function that full support"”in effect an artificial-heart-like device"”was his only hope.
Edwin C. McGee, Jr. MD, surgical director for the Bluhm Cardiovascular Institute's Heart Transplantation and Mechanical Assistance program was Armstrong's cardiac surgeon. Although Armstrong ultimately required heart transplant, in July he received life-saving intervention where two HeartWare Ã® ventricular assist devices (VAD) were implanted onto both ventricles of his heart as a "bridge to transplant", sustaining heart function until a heart became available. This was the first time anywhere in North America"”and to date the only"”instance of using the small VADs in a biventricular configuration"”two VADs instead of one"”implanted on a single heart. This particular device is one of the smallest, full-support experimental VADs currently available for study in humans in the US.
This past Oct. 15, Armstrong received a heart transplant. The American Heart Association estimates that an average of 300,000 people die every year from heart failure; 10,000 of them qualify for heart transplant, but only 2000 cardiac transplants occur in the US each year due to lack of organs. Assist devices such as what Armstrong received are becoming an increasingly important therapy to help individuals with advanced heart failure.
"I may never know why or how I contracted the myocarditis that destroyed my heart," Armstrong said. "But I know I wouldn't be here if Northwestern's team hadn't acted as fast as they did to save my life."
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