Which factor is NOT typically a cause of paroxysmal arrhythmias?

Paroxysmal arrhythmias are often triggered by various physiological and pathological factors that disrupt the normal electrical conduction in the heart. Regular medication adherence is not typically a cause of these arrhythmias; rather, it is often a preventative measure. When patients adhere to their prescribed medications, it can help maintain stable heart rhythms and manage underlying conditions that might contribute to arrhythmias.

On the other hand, electrolyte imbalances, such as variations in potassium, sodium, or magnesium levels, can lead to significant disruptions in cardiac electrical activity, potentially provoking paroxysmal arrhythmias. Strenuous exercise can also initiate these arrhythmias, particularly in individuals predisposed to them or those who have underlying heart conditions. Furthermore, age-related degenerative changes in the heart's conduction system can increase susceptibility to arrhythmias as well, due to factors such as fibrosis or scarring of the heart tissue.

Understanding these factors is crucial for recognizing the triggers for paroxysmal arrhythmias and managing patient care effectively.