Tachycardia means that patient heart is beating too fast. For example, a normal heart beats 60 to 100 times per minute in adults. Tachycardia is any resting heart rate over 100 beats per minute (BPM).
Many types of irregular heart rhythms (arrhythmias) can cause tachycardia. A fast heart rate isn't always a concern.
There are three types of it-
1. Supraventricular
2. Ventricular
3. Sinus tachycardia
Causes- heavy exercise, fever, fear, stress, anxiety, certain medications, and some drugs can lead to sinus tachycardia. It can also be triggered by anemia, an overactive thyroid, or damage from a heart attack or heart failure.
Supraventricular tachycardia is most likely to affect people who smoke, drink too much alcohol, or have a lot of caffeine. In some cases it’s linked to heart attacks. It’s more common in women and children.
The ventricular type is associated with abnormal electrical pathways which are present at birth (long QT), structural problems of the heart such as a cardiomyopathy or coronary disease, medications, or electrolyte imbalance. Sometimes, the reason is unclear.
