{'fraction_non_alphanumeric': 0.022821576763485476, 'fraction_numerical': 0.0, 'mean_word_length': 5.527027027027027, '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}}
The relationship between hypotension, cerebral flow, and the surgical field during endoscopic sinus surgery

Hypotensive anesthesia is often used in endoscopic sinus surgery (ESS) to improve surgical visibility; however, its safety and efficacy in this role are yet to be justified. This study aimed to evaluate the effect of hypotensive anesthesia on both real‐time middle cerebral artery blood flow velocity (Vmca) and the severity of surgical bleeding in patients undergoing ESS.