Johns Hopkins and Children's National Pediatric Cancer Care at Sibley Memorial Hospital


Sibley Memorial Hospital - Radiation Oncology, 1st floor
5255 Loughboro Rd NW
Washington, DC 20016
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Phone: 202-537-4788

Conditions & Treatments

Conditions & Treatments


An arrhythmia (also called dysrhythmia) is an abnormal rhythm of the heart.


Syncope is a temporary loss of consciousness and muscle tone caused by inadequate blood supply to the brain. Syncope is sometimes also called fainting.