STV is likely a typo and the user intended to ask about SVT in relation to the heart. SVT stands for Supraventricular Tachycardia. Therefore, the question is likely "What is Supraventricular Tachycardia (SVT) in the heart?".
SVT, or Supraventricular Tachycardia, is a condition where the heart suddenly beats much faster than normal.
Supraventricular Tachycardia (SVT) Explained
Here's a more detailed explanation:
- Definition: SVT is a type of arrhythmia, or irregular heartbeat, that originates above the ventricles (the lower chambers of the heart). This is where the "supraventricular" part of the name comes from.
- Rapid Heart Rate: The main characteristic of SVT is a sudden and significant increase in heart rate, often well above 100 beats per minute (bpm). Normal resting heart rate is typically between 60 and 100 bpm.
- Not Usually Serious: The reference notes that it's "not usually serious." While SVT can be uncomfortable and even frightening, it's often not life-threatening.
- Treatment: Some people experiencing SVT may require medical treatment to regulate their heart rate.
Symptoms of SVT
While symptoms can vary, some common signs of SVT include:
- Palpitations (a fluttering or racing feeling in the chest)
- Dizziness or lightheadedness
- Shortness of breath
- Chest pain
- Anxiety
When to Seek Medical Attention
Even though SVT is "not usually serious," it's essential to consult a doctor if you experience any of the symptoms listed above. A proper diagnosis can help determine the underlying cause and the best course of treatment.
