What condition may be a sign of atrial diseases such as hypertension?

Premature Atrial Contractions (PACs) can be indicative of atrial diseases, including those linked to hypertension. PACs are ectopic beats originating from the atria and can occur as a consequence of atrial enlargement or changes in atrial tissue, which are common in patients with chronic hypertension. The presence of PACs is often associated with increased atrial pressure and can serve as a precursor to more significant atrial arrhythmias, such as atrial fibrillation or atrial flutter. Monitoring PACs can provide insights into the underlying atrial condition and help identify individuals at risk for developing further complications associated with atrial diseases.

For context, other choices such as Ventricular Fibrillation and AV Block are conditions that primarily relate to the ventricles and the conduction system rather than directly reflecting atrial pathology. Atrial Flutter, while an arrhythmia that also stems from the atria, is a more advanced condition often arising from underlying atrial disease, thus making PACs a more primary indicator of potential atrial issues related to hypertension.