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A 32-year-old member asked:

I had my ecg done and twice 2 diff machine printed out saying tachycardia and left anterior fascicular blk. dr says graph is fine. shld i worry ?

2 doctor answers8 doctors weighed in
Dr. Irv Loh
Dr. Irv Lohanswered
Cardiology 49 years experience
Need more data: Tachycardia simply means a rapid heart rate (100+ beats per minute) and may be normal for the circumstances. The left anterior fascicular block means there's a minor interruption in the way your heart gets its electrical trigger to beat. Fortunately, there's redundancy so you don't even know it's there. But the significance depends on why it's there. Old ecgs may help. Talk to your doctor.
Dr. Vasudev Ananthram
Cardiology 32 years experience
Talk to your doc....: You may have tachycardia because you were perhaps anxious during ekg. Check your pulse at rest randomly. If you average over 90 or 100 at rest ask yourself why (poor shape physically, generally anxious, anemia, overactive thyroid, uncontrolled diabetes or other illness). Lafb means partially slow conduction of electrical impulse on the left side. If you feel well otherwise no worries.

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Last updated Jan 16, 2014

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