Catheter ablation is a procedure that uses radiofrequency energy (similar to microwave heat) to destroy a small area of heart tissue that is causing rapid and irregular heartbeats. Destroying this tissue helps restore your heartâs regular rhythm. The procedure is also called radiofrequency ablation. Quick facts.
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DTaP and Tdap refer to similar combination vaccines in which the component with lower case 'a' is acellular. Also available is the DT or TD vaccine, which lacks the pertussis component. The Tdap vaccine is currently recommended by the CDC and covers tetanus, diphtheria and pertussis (CDC Vaccines, 2013).