A racing heart can feel alarming, especially when it starts without warning. Supraventricular tachycardia is a common heart rhythm condition that causes episodes of rapid heartbeat, and for many patients, there is a simple way to stop it without medication. This technique is called the modified Valsalva maneuver, and it has become a trusted first response for people living with this condition.
In this post, we will explain what supraventricular tachycardia is, walk through how the modified Valsalva maneuver works, and cover when it’s time to see a cardiologist for further evaluation.
What Is Supraventricular Tachycardia?
Supraventricular tachycardia, often shortened to SVT, is a type of abnormal heart rhythm that begins above the heart’s lower chambers. During an episode, the heart rate suddenly jumps, sometimes reaching 150 to 250 beats per minute. These episodes can start and stop just as quickly as they appear.
People with SVT often describe the sensation as a fluttering or pounding in the chest. Other common symptoms include lightheadedness, shortness of breath, and anxiety during an episode. While SVT is rarely life-threatening, frequent or prolonged episodes should always be evaluated by a cardiologist.
What Causes SVT?
SVT happens when electrical signals in the heart misfire or take an unusual path, creating a short loop that speeds up the heartbeat. This can be triggered by stress, caffeine, lack of sleep, or sometimes nothing identifiable at all.
How the Modified Valsalva Maneuver Stops Racing Hearts
The modified Valsalva maneuver is a simple, non-invasive technique that can help reset the heart’s rhythm during an SVT episode. It works by changing the pressure inside the chest and abdomen, which affects the nerves that control heart rate. This shift often interrupts the abnormal electrical loop causing the rapid heartbeat, allowing the heart to return to a normal rhythm.
Research published in The Lancet found that the modified version of this maneuver, which includes lying back and raising the legs after straining, was significantly more effective than the traditional method alone.
Step-by-Step: Performing the Modified Valsalva Maneuver
- Sit in a semi-reclined position.
- Take a breath and strain for about 15 seconds, as if trying to push air out while keeping your mouth closed, similar to the effort used during a bowel movement.
- Immediately lie flat and have someone lift your legs to a 45-degree angle for 15 seconds.
- Return to a seated position and check whether your heart rate has slowed.
This maneuver can be repeated if the first attempt doesn’t work. It’s a technique many cardiologists teach patients to use safely at home.
When to See a Cardiologist
While the modified Valsalva maneuver can be effective for many SVT episodes, it isn’t a substitute for professional care. You should contact a cardiologist if:
- Episodes happen frequently or last longer than a few minutes
- The maneuver doesn’t stop the rapid heartbeat
- You experience chest pain, fainting, or severe shortness of breath
- You’re unsure whether your symptoms are related to SVT or another heart condition
A cardiologist can confirm the diagnosis and recommend a treatment plan tailored to your specific needs.
Diagnosis and Treatment at a Cardiology Clinic in Brooklyn
A cardiology clinic in Brooklyn can offer the testing needed to confirm an SVT diagnosis, including an electrocardiogram, a Holter monitor, or an electrophysiology study. These tools help your care team map out exactly how the abnormal rhythm is occurring and determine the best path forward.
Treatment options range from lifestyle changes and medication to catheter ablation, a minimally invasive procedure that can permanently correct the faulty electrical pathway. Visiting a cardiology clinic in Brooklyn gives patients access to experienced specialists and advanced diagnostic technology, all in one place.
Take the Next Step
Living with supraventricular tachycardia doesn’t mean living with uncertainty. Knowing how to perform the modified Valsalva maneuver gives you a practical tool for managing sudden episodes, but a proper diagnosis is the key to long-term peace of mind.
If you’re experiencing symptoms of SVT or want to learn more about your treatment options, reach out to our Cardiology team today by calling +1-718-367-2555 or visiting us at 1797 Pitkin Avenue, Brooklyn, NY 1121 to schedule an appointment. Our team is here to help you understand your heart health and find the right plan for you.
