Is sinus tachycardia serious?

You may wonder whether or not sinus tachycardia is a serious issue. Let us tell you, it is not itself a major issue but can also be a sign of other medical or health problems. To understand the severity of the issue, you may need to understand the medical condition of sinus tachycardia. The heart consists of the natural pacemaker called the sinus node. It generates electrical impulses and causes the heart to contract and beat. Under normal conditions, the heartbeats 60 to 100 beats per minute. But sometimes, these electrical impulses are sent at a faster rate than normal. This condition is referred to as inappropriate sinus tachycardia where the heart beats at 100 beats per minute. If you or anyone you know is going through underlying medical conditions of inappropriate heart beating, you should immediately consult medical help. You can also consult the experts of Kamineni Hospital.

The key points related to sinus tachycardia

  • sinus tachycardia is a serious issue especially when you are suffering from any kind of underlying disease like heart attack and diabetes.
  • Under the inappropriate conditions of sinus tachycardia, the heart beats at 100 beats per minute. It may rest at an average rate of 90 beats per minute throughout the day.
  • Certain types of food increase the heart rate. The heart may beat inappropriately in the absence of certain triggers. In other cases, the heart may beat inappropriately because of certain triggers. But, the rate may increase much faster than what is expected.
  • Some people may have the possible effects or symptoms of inappropriate sinus tachycardia and some others may not even have any kind of symptom.
  • The possible treatments for sinus tachycardia depend on the varying severity of the medical condition.
  • There are certain possible triggers like caffeine and nicotine found in coffee and tea that increase the heartbeat at an inappropriate rate.

What is normal sinus tachycardia?

In certain cases, the symptoms of sinus tachycardia are completely normal. For example, you may have the underlying symptoms of sinus tachycardia after you get free from any kind of aggressive exercise. Other signs that may cause the symptoms of sinus tachycardia to include:

  • anxiety or emotional distress
  • fever
  • some medications including the medications of heart attack, diabetes, and blood pressure.
  • stimulations, such as caffeine or nicotine
  • recreational drugs or the abuse of drugs

What do you mean by inappropriate sinus tachycardia?

If the symptoms of sinus tachycardia come with no known reason, it may cause inappropriate sinus tachycardia (IST). People with IST are typically at the risk of increased heartbeat even when they are sleeping or resting. The rapid heartbeat can cause underlying symptoms like:

  • Breathing problems
  • chest pains
  • dizziness or fainting
  • headaches
  • Trouble while doing normal lifts or doing even light exercises
  • anxiety

What are the most possible symptoms of sinus tachycardia?

Some people do not directly develop the symptoms of sinus tachycardia. There are certain things like excessive use of coffee or tea, taking certain medications, etc that can trigger this situation. In adults, IST means that the heart may beat at 100 beats per minute. The pulse rate may also increase to 150 beats per minute and may create additional symptoms like:

  • Difficulty in doing exercising
  • Trouble catching your breath
  • Chest pain
  • Dizziness
  • Fainting
  • Headache
  • Anxiety and when you start correlating your feeling with food

Sinus tachycardia is a serious issue especially when it is taken for long-term health issues. However, it doesn’t create any harmful effects. It can only be seen as the early sign of certain other underlying diseases. You may talk to your doctor regarding the issues. This can also be a sign of serious health issues.

How far can you live with the symptoms of sinus tachycardia?

Tachycardia occurs when there is any kind of disruption with the electrical signaling of the heart. The heart controls the rate and pumping of the blood. The condition may occur in response to medical conditions like fever, anxiety, emotional distress, fear, heavy exercise, and the use of any kind of illegal drugs. Sinus tachycardia can also occur in the presence of any kind of increased thyroid activity, severe bleeding, anemia, etc that can damage the heart muscles.

There are three types of tachycardia. These can be:

  • Atrial or supraventricular tachycardia (SVT): It starts with the issue in the upper chamber of the heart.
  • Ventricular tachycardia: It starts in the lower heart chambers. It can be a sign of any underlying or life-threatening disease.
  • Sinus tachycardia: It is one of the fast and steady increases in a heartbeat. The heart or the sinoatrial nodes (that is the natural pacemaker of the heart) starts sending the electrical signals at a quicker rate.

Sinus tachycardia is a serious issue especially when a person is suffering from any kind of persistent medical issue. Certain identifiable triggers may cause an increase in heart rate. In such a case, your doctor may require you to check your heartbeat through ECG or electrocardiogram. This may give the sign of inappropriate activity with your heart. The person may not generally require any kind of treatment if he/she is solely going through sinus tachycardia. However, it can be a sign of unhealthy heart or heart problems. In such a case, you may be required to notify your doctor about the symptoms or your body changes.


In general, sinus tachycardia refers to an increase in a heartbeat. It can be a sign of an unhealthy body. However, there is particularly nothing to worry about the situation. It may correct itself till you relax your body and start doing any low-energy needed work. It simply occurs when you do vigorous exercise and take too much caffeine. In Particular, there are no major causes of sinus tachycardia. But, you may consult your doctor in case you feel it is showing any obstruction with your health. The difference lies in the change in lifestyle or the use of certain medications.
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