Soon the affected person's breathing and pulse will stop. Seek immediate medical help if you have shortness of breath, weakness, dizziness, lightheadedness, fainting or near fainting, and chest pain or discomfort.Ī type of tachycardia called ventricular fibrillation can cause blood pressure to drop dramatically. If you feel like your heart is beating too fast, make an appointment to see a health care provider. When to see a doctorĪ number of things can cause a rapid heart rate (tachycardia). The condition may be discovered when a physical exam or heart tests are done for another reason. Some people with tachycardia have no symptoms.
Other types of tachycardia are grouped according to the part of the heart responsible for the fast heart rate and the cause. Sinus tachycardia refers to a typical increase in the heart rate often caused by exercise or stress. There are many different types of tachycardia. Treatment for tachycardia may include specific maneuvers, medication, cardioversion or surgery to control a rapid heartbeat. But if left untreated, some forms of tachycardia can lead to serious health problems, including heart failure, stroke or sudden cardiac death. Tachycardia may not cause any symptoms or complications.