What Increases Your Risk
Some lifestyle factors can raise your risk of having an episode of
supraventricular tachycardia, such as overuse of
caffeine, nicotine, or alcohol or use of illegal drugs, such as stimulants like
cocaine or methamphetamine.
Decongestants that contain stimulants should also be avoided,
including oxymetazoline (such as Afrin and other brands) and pseudoephedrine
(such as Sudafed, Actifed, and other brands). Doctors also warn against using
nonprescription diet pills or "pep" pills, because many contain caffeine,
ephedra, ephedrine, the herb ma huang, or other stimulants.
Conditions that affect the lungs, such as
chronic obstructive pulmonary disease (COPD),
pneumonia,
heart failure, and
pulmonary embolism, can raise your risk for multifocal
atrial tachycardia (MAT), a type of supraventricular tachycardia.
Many experts believe that
Wolff-Parkinson-White syndrome may in some cases be
inherited. If you have a close relative with this disorder and he or she has
symptoms, talk with your health professional about your risk of developing this
abnormal heart rhythm.