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School of Medicine
Conditions We Treat: Long QT Syndrome (LQTS)
Long QT Syndrome (LQTS) is a rare malfunction in the way the heart cells recharge after producing electricity. This malfunction can lead to a dangerous arrhythmia causing fainting or even sudden death.
Long QT Syndrome: What You Need to Know
- LQTS is either inherited or acquired (acquired LQTS is usually drug induced). Symptoms sometimes occur only under a combination of factors, such as several drugs taken together.
- Diagnosis is usually via electrocardiogram (ECG/EKG) or blood tests for electrolyte imbalances.
- If you have been diagnosed with inherited LQTS, your family members should be tested as well.
- The goals of treatment are to improve the ability of the heart cells to generate an electrical charge and/or to stabilize the heart's rhythm using an implanted device.
The "QT" in long QT syndrome refers to the waves on an electrocardiogram, which are labeled P, Q, R, S and T. Q through T represent the recharging of the cells after a heart-muscle contraction.
Why choose Johns Hopkins Heart and Vascular Institute for treatment of long QT syndrome?
Our electrophysiologists are experts at the diagnosis and treatment of this rare condition.Meet our physicians:
Our Specialty Centers
The Johns Hopkins Center for Inherited Diseases counsels and screens patients and their families at risk for LQTS.Learn more about the Center for Inherited Heart Diseases.
Our Patient Care
Kim Bauhs was about to address a meeting when she collapsed in cardiac arrest. Only the persistence of Johns Hopkins physicians helped Kim confront a life-saving diagnosis.Read Kiim's story.