{'fraction_non_alphanumeric': 0.020524515393386546, 'fraction_numerical': 0.004561003420752566, 'mean_word_length': 5.055172413793104, '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}}
Comparative evaluation of reconstructive operations on biliary tracts

The aim of this work was to evaluate different types of CDA for treatment of common bile duct terminal obstruction based on the analysis of immediate and long-term results (3-5 years) of surgical treatment as well as postoperative complications and to choose an optimal method of CDA placement and conditions for its performance. We divide indications for CDA placement into absolute and relative ones. The absolute indications are as follows: a) cholangitis with dilatation of common bile duct over 2 cm; b) small stones of common bile duct with mechanical jaundice; c) stones in area of large duodenal nipple not removed; d) "arrow" narrowing of the terminal section of choledocha over 2 cm. We consider as relative such indications as uncertainty in complete removal of stones and pancreatic head tumor.