{'fraction_non_alphanumeric': 0.0192, 'fraction_numerical': 0.0, 'mean_word_length': 6.195402298850575, '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}}
Atrio-ventricular block after administration of lignocaine in patients treated with prenylamine

Four patients are described who exhibited prolonged Q-T intervals, multiple ventricular premature beats and ventricular tachycardia of the ‘torsade de pointes’ configuration whilst on treatment with prenylamine. In two of these patients, advanced atrio-ventricular block was established immediately following intravenous administration of lignocaine. The arrhythmia and the atrio-ventricular blocks were successfully controlled by ventricular pacing. The hazard of the simultaneous administration of these two drugs is stressed.