Search the Health Library
Get the facts on diseases, conditions, tests and procedures.
I Want To...
I Want To...
Find Research Faculty
Enter the last name, specialty or keyword for your search below.
School of Medicine
I Want to...
Conditions We Treat: Syncope
Syncope (fainting) occurs when not enough blood reaches a person's brain and they pass out. Pre-syncope means feeling dizzy or lightheaded but not actually fainting. While syncope is often not dangerous, it can also be the first and only warning before sudden cardiac death. Therefore, people with syncope should be evaluated by a knowledgeable physician.
Syncope: What You Need to Know
- Syncope has many possible causes, including cardiovascular conditions such as cardiac arrhythmias.
- To diagnose the underlying cause, your doctor may recommend a noninvasive evaluation with an ECG, echocardiogram, Holter or event monitor, or tilt table test. In some cases an electrophysiology study is required.
- Treatment options vary based on the precise cause of syncope. For some patients treatment includes education and increased salt and fluid intake. For others, treatment may be catheter ablation or placement of a pacemaker or implantable defibrillator.
Why choose Johns Hopkins Heart and Vascular Institute for treatment of syncope?
With expertise and determination, our physicians will work to find the underlying cause of your syncope.Meet our physicians:
Syncope has many possible causes. For Tammy Riblett, syncope was a mystery that Johns Hopkins cardiologist Nancy Strahan was intent on solvingRead Nancy's story.