A sudden blockage of a blood vessel by a foreign object would be called an "embolism".
A procedure which uses a catheter with an electrode in its tip to destroy the cells from which abnormal cardiac rhythms are originating is called Ablation.
Ablation therapy is used to treat some rhythm abnormalities. While cryo or freezing ablations have been used to address a number of rhythm issues, the bulk of ablations are performed using radiofrequency energy and catheter heating.
invasive intracardiac testing is necessary even though radiofrequency ablation is frequently safe and effective. The tissue is heated to a temperature of 45–100 °C using radiofrequency energy and an alternating current of 370–50 kHz. The catheter-induced lesion has dimensions of 5–6 mm in diameter and 2–3 mm in depth. To treat certain rhythm issues, like VT , a catheter with a larger tip, also known as an "irrigated tip," is used to make deeper and larger lesions.
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