Which term best describes arrhythmias that are chronic and persistent?

The term "persistent" accurately describes arrhythmias that are chronic and continuous in nature. When an arrhythmia is labeled as persistent, it indicates that the irregular heartbeat does not resolve on its own and requires medical intervention for restoration of normal rhythm. This classification is essential in cardiac care as it helps in planning long-term management strategies for patients who may require ongoing treatment or monitoring.

In contrast, other terms such as "paroxysmal," "intermittent," and "transient" imply a temporary or episodic nature of arrhythmias. Paroxysmal arrhythmias occur in episodes that can start and stop suddenly, while intermittent arrhythmias are those that may come and go but are not consistently present. Transient arrhythmias most commonly refer to those that last only for a brief duration. These distinctions highlight the unique characteristics of persistent arrhythmias, emphasizing their need for continuous or long-term management.