Effects of permissive hypercapnia on intraoperative cerebral oxygenation and early postoperative cognitive function in older patients with non-acute fragile brain function undergoing laparoscopic colorectal surgery: protocol study.

BMC Geriatr · 2023 · PMC10512528 · PMID 37735369

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an increasing trendno p-value reported

These changes may result in an increasing trend in the intraoperative changes in rSO 2 in the intervention group.

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