The phrase "abnormal rhythm" is correct and usable in written English.
It can be used in medical contexts to describe irregular heartbeats or other rhythmic patterns that deviate from the norm.
Example: "The patient was diagnosed with an abnormal rhythm, which required further examination by a cardiologist."
Alternatives: "irregular rhythm" or "dysrhythmia."
But then my heart went into an abnormal rhythm, and they shocked me without warning.
This arrhythmias may degenerate into ventricular fibrillation which is a fatal abnormal rhythm.
If drugs failed, or if patients could not tolerate them, doctors used cardioversion, radiofrequency or surgery, or combinations, to try to get rid of the abnormal rhythm.
The defense contended that the abnormal rhythm resulted from an embolism, a blockage of a blood vessel, possibly related to her obesity.
Since the dangerous complications of AF result from its abnormal rhythm, logic dictates that restoring a normal rhythm would be the highest priority of therapy.
They are also investigating whether this abnormal rhythm comes from the cortex and whether this will be another potential site for electrical stimulation to treat movement disorders.
Now they were stimulating her heart electrically, to test for abnormal rhythms.
If normal conductivity gets blocked, it can result in fast abnormal rhythms and a person can die".
The researchers scrutinized the electrocardiograms stored in the device for evidence of two life-threatening abnormal rhythms -- ventricular tachycardia and ventricular fibrillation.
The first is a built-in EKG (electrocardiogram) that is FDA approved to sense whether the wearer has a normal heart rhythm or "atrial fibrillation" — one of the more common abnormal rhythms.
The severity of his condition depends on how quickly Aldridge's heart rhythm returned to normal, how often abnormal rhythms are occurring, how abnormal the rhythms may be (e.g., how fast is the heart rate) and how easily they may be triggered in the future.
