A short PR interval in women is not a serious condition, and a short PR interval on the ECG is not particularly related to the gender of the patient and is commonly seen in preexcitation syndrome.The PR interval is the period of time during which electrical excitation of the heart is conducted from the atria to the ventricles, which is usually between 0.21 and 0.20 seconds. A clinical test below this value is evidence of a shortened PR interval, also known as short PR interval syndrome. If the patient does not present with tachycardia, only routine physical examination shows a short tachycardia interval does not require special treatment, if the arrhythmia and tachycardia are recurrent radiofrequency ablation is required. Radiofrequency ablation is a measure to treat arrhythmias by eliminating, through radiofrequency energy, the abnormal channels that cause short PR intervals, thus preventing short circuits in cardiac conduction.