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Sinus tachycardia is usually a benign condition, but it can weaken the heart over time if it is persistent. consuming less than 2,300 milligrams of sodium per day.quitting smoking and avoiding other sources of nicotine.Treatments for sinus tachycardia may include: Treating IST can be more challenging due to symptoms persisting past managing the heart rate with medications and lifestyle changes. Treatments for sinus tachycardia vary depending on the underlying cause but usually involve a combination of lifestyle changes, medication, and, in very rare instances, surgery.ĭoctors address the underlying cause or condition when treating normal sinus tachycardia and do not often treat the tachycardia itself. The main differences between IST and normal sinus tachycardia are that IST typically does not have a known cause, and IST occurs when at rest or when the heart responds disproportionately to movement. IST can cause a faster heart rate for a person even when they are at rest.Īccording to the authors of a 2017 case report, doctors can sometimes misdiagnose IST as a symptom of mental health conditions, such as depression. Inappropriate sinus tachycardia (IST) occurs due to unknown reasons. The causes of normal sinus tachycardia might be part of a person’s everyday life, although a person experiencing anxiety symptoms may wish to contact a doctor. Normal sinus tachycardia involves a known cause for the increase in heartbeat rate.Ĭauses of normal sinus tachycardia can include: Types of sinus tachycardia include normal and inappropriate sinus tachycardia. The underlying cause will determine the likely outcome of a person with this condition. People can develop sinus tachycardia for different reasons. However, it is often lower in well-trained athletes. According to the American Heart Association, a typical heart rate should fall within 60–100 bpm at rest. These impulses cause the heart to contract.Ī properly functioning sinus node regulates the rhythm and speed of a person’s heart. These cells act as the natural pacemaker of the heart by sending electrical impulses to the surrounding tissue. The sinus node, or sinoatrial node, is a bundle of specialized electrical cells in the right upper chamber of the heart. Sinus tachycardia refers to an increased heart rate that exceeds 100 beats per minute (bpm).