{'fraction_non_alphanumeric': 0.019332161687170474, 'fraction_numerical': 0.0, 'mean_word_length': 6.5, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Relationship Between Ventricular Rate Variability in Nonsustained Ventricular Tachycardia and Subsequent Cardiac Events

Background: Clinical and experimental observations indicate that reduced beat‐to‐beat changes in the cycle length of nonsustained ventricular tachycardia (NSVT) may portend malignant ventricular tachyarrhythmias and sudden cardiac death. The purpose of the study was to test the hypothesis that measures of ventricular rate variability during NSVT (VRV‐NSVT) may be useful in identifying patients at high risk of life‐threatening arrhythmic events.