What is Lown-Ganong-Levine syndrome?
A person with Lown-Ganong-Levine syndrome has abnormal electrical impulses that travel through the heart more rapidly than normal. Normally, an electrical impulse stimulates the muscle fibers in the heart to contract. The impulse spreads through the heart in a very organized manner, allowing the heart to pump blood effectively. The abnormal electrical impulses in someone with Lown-Ganong-Levine syndrome can cause episodes of rapid heart rate. The cause for Lown-Ganong-Levine syndrome is unknown.

What are the symptoms of Lown-Ganong-Levine syndrome?
Most people with Lown-Ganong-Levine syndrome do not have symptoms, unless they develop a rapid heart rate. Symptoms of a rapid heart rate in those with Lown-Ganong-Levine syndrome include palpitations, chest pain, faintness, fainting, shortness of breath, and excessive sweating.

How does the doctor treat Lown-Ganong-Levine syndrome?
Lown-Ganong-Levine syndrome requires treatment only if the rapid heart rate causes symptoms, or an abnormal heart rhythm occurs. Treatment for Lown-Ganong-Levine syndrome may include cardiac monitoring, beta-blockers, calcium channel blockers, digoxin, cardiac pacemaker, and radiofrequency ablation therapy.