{'fraction_non_alphanumeric': 0.01765650080256822, 'fraction_numerical': 0.0016051364365971107, 'mean_word_length': 5.709677419354839, '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}}
Use of a laparoscopic trocar for percutaneous introduction of drains into intra‐abdominal abscesses

Drainage of an intra‐abdominal abscess is a difficult problem. Laparotomy with open drainage, although effective, carries a certain morbidity and mortality rate. Percutaneous drainage using one of the various pigtail catheters is often ineffective, especially when there is debris within the abscess. These catheters tend to become blocked unless they are flushed regularly owing to a smaller lumen1. A method is described for introducing a wide‐bore Robinson drain under ultrasonographic guidance using local anaesthesia.