{'fraction_non_alphanumeric': 0.051511758118701005, 'fraction_numerical': 0.05039193729003359, 'mean_word_length': 4.5875, '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}}
CEREBRAL BLOOD FLOW DURING HYPOXEMIA AND REOXYGENATION WITH 21% OR 100% O2 IN NEWBORN PIGS

To test the effects of resuscitation with 21% or 100% O2 on cerebral blood flow (CBF), hypoxemia was induced in 14 newborn pigs (2-5 days) by ventilation with 8% O2 in nitrogen. When base excess reached -20 mmol/L, they were randomly resuscitated with either 21% O2 (n = 6) or 100% O2 (n=8) for 25 min followed by 21% O2 in both groups. Blood flow was measured in brainstem (BS), cerebellum (CBL) and cerebrum (CBR) with a radioactive microsphere method.Mean duration of hypoxemia was 59 min in both groups. Flow values were (ml/lOOg/min, mean±SD):CBF was significantly increased in both groups in all areas after 5 and 20 min of reoxygenation.Conclusion: We could not demonstrate any significant differences in regional CBF between two groups of hypoxic newborn pigs reoxygenated with 21% or 100% O2.