Changes in central venous oxygen saturation, lactates, and ST segment changes in a V lead ECG with changes in hemoglobin in neurosurgical patients undergoing craniotomy and tumor excision: A prospective observational study.

J Anaesthesiol Clin Pharmacol · 2019 · PMC6495604 · PMID 31057249

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did not reach statistical significanceno p-value reported

However it did not reach statistical significance, because of the small numbers (only 22.8% of the patients received blood transfusion).

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