Is there any difference between sinus arrhythmia and sinus tachycardia? I'm trying to understand if they are the same thing or if they affect the heart in different ways. It's a bit confusing to me, and I'm worried about what these terms mean for heart health. Could you explain it in simple terms?

Dr Dhankecha Dineshbhai

General Practitioner

• MBBS
• 6+ Yrs

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Sinus arrhythmia and sinus tachycardia are different conditions. Sinus arrhythmia is a normal variation in heart rate that occurs with breathing - the heart rate increases with inhalation and decreases with exhalation. It is usually harmless and does not require treatment. On the other hand, sinus tachycardia is a condition where the heart rate is faster than normal, typically above 100 beats per minute. In some cases, sinus tachycardia may be a sign of an underlying medical condition and treatment may be necessary. If you are experiencing symptoms of either condition, it is important to consult with a healthcare professional for proper evaluation and management.

Answered 17 days ago