Causes Of Sinus Tachycardia: Signs And Symptoms And Treatment

Sinus tachycardia is heart rate above 100/min. The normal heart rate in an adult individual is between 60 and 100 when he is resting. The rate at which heart beats is controlled by signals sent across the muscle of the heart. Sinus tachycardia occurs when the heart behaves abnormally due to rapid signals.

Sinus tachycardia can sometimes be harmless. However, in some cases it can affect the function of heart. The risk of cardiac arrest, stroke rises with sinus tachycardia in some cases.

Causes And Symptoms Of Sinus Tachycardia?

Tachycardia occurs when the electrical impulse which initiates the heart beat, is interrupted by some untoward conditions. There are many factors that can contribute to sinus tachycardia. This may include;

  • Physiological causes such as; exercise, anxiety, fear, anger, excitement, drinking alcohol, cigarette smoking, drinking coffee and tea, cola drinks. Besides this as compared to adults children have faster heart rate in normal situation.
  • Organic causes include: fever, hyperthyroidism, anemia, beri –beri, rheumatic fever.
  • Drug induced: drugs include atropine, amphetemines, thyroid hormones, caffeine.
  • Cardiovascular disease: Hypertension, heart failure, acute heart attack, myocarditis, cardiomyopathy, pericarditis.
  • It can occur in chronic obstructive airway disease especially during acute respiratory infection.
  • Sometime sinus tachycardia is idiopathic, meaning the reason is not known.

Sinus Tachycardia Signs And Symptoms

If your heart is pumping rapidly, many tissues and organs remain deprived or less saturated with oxygenated blood. This can give rise to various symptoms such as:

  • Fainting attacks.
  • Palpitation of heart.
  • Irregularity in the heart beats.
  • Pain in the chest.
  • Vertigo.
  • Breathing difficulty.
  • Fatigue.
  • Sweating.

Many people may be asymptomatic, meaning they do not have any symptoms. It is detected only during the physical examination done by the doctor. It can also be detected when person tests for electrocardiogram, a test to monitor heart health.

Treatment Options For Sinus Tachycardia

The aim of treating tachycardia is to slow down the rate of heart and try to bring it within normal limits.

  • Physiological tachycardia can itself slow down. It can also be corrected with the help of certain exercises and medication. A fast heart beat can be regulated by simple maneuvers such as coughing, applying icepack on the face.
  • If exercises do not improve tachycardia, anti arrhythmic medications play an important role in regulating the beats.
  • Cardioversion is another procedure where a shock is delivered to heart to restore the normal rhythm.
  • In many cases where the tachycardia is permanent and it affects the cardiac health pace maker is implanted surgically. The devise sense abnormal heart beat and releases an electrical pulse to moderate the beat.
  • Treating underlying disease such as hyperthyroidism reduces tachycardia.
  • Many causes such as anxiety, stress and tension bring about changes in heartbeat. If the reason for tachycardia is purely stress and anxiety, yoga and meditation will help to bring down the heart rate significantly.
  • Change in lifestyle such as reduction of coffee, tea and colas, avoiding alcohol and smoking can substantially reduce sinus tachycardia.
  • If certain drugs that you are taking are responsible for sinus tachycardia, your doctor may reduce the dose or change them to regulate the heart rhythm.

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