. 2025; 23(2): 89-93 | DOI: 10.63729/TJIC.2025.636 | |||
Rethinking perioperative oxygen therapyOzan AkcaDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, USAOxygen administration is foundational in anesthesiology and perioperative medicine, yet growing evidence challenges the routine use of high inspired oxygen concentrations. While preventing hypoxia remains essential during induction, emergence, and perioperative urgencies, both hypoxia and hyperoxia carry significant risks—including inflammation, oxidative stress, vasoconstriction, and impaired organ perfusion. These effects are especially pronounced in high-risk surgical patients. Recent advances in noninvasive hemodynamic and oxygenation monitoring now allow dynamic, individualized titration of oxygen delivery (DO2), moving beyond conventional SpO2 targets. Guidelines from cardiovascular societies increasingly support focused oxygenation goals during perioperative cardiac and cerebro-vascular emergencies. In the context of perioperative complexity and management of high-risk patients, anesthesiologists are uniquely positioned to lead a shift toward goal-directed oxygen therapy. Recognizing oxygen as a dose-dependent drug offers an opportunity to optimize outcomes through a nuanced, physiology-informed approach to intraoperative and perioperative care. Keywords: oxygen, oxygen delivery, hypoxia, hypoxemia, hyperoxia, surgery, hemoglobin, cardiac output, blood pressure, acute kidney injury, organ injuryPerioperatif oksijen kullanımıOzan AkcaAnesteziyoloji ve Yoğun Bakım Bölumu, Johns Hopkins ÜniversitesiOksijen kullanımı perioperatif dönemin önemli öğelerinden birisidir. Ancak, son yıllarda yüksek inspiratuar oksijen konsantrasyonlarının rutin kullanımı sorgulanmaktadır. Perioperatif dönemde hem hipoksi hem de hiperoksi önemli riskler taşır — bunlar arasında inflamasyon, oksidatif stres, vazokonstriksiyon ve organ perfüzyonunun bozulması yer alır. Bu organ hasarları, özellikle kardiyak -torasik cerrahilerde ve yüksek riskli hastalarda daha belirgin olarak gözlenmiştir. Ozan Akca. Rethinking perioperative oxygen therapy. . 2025; 23(2): 89-93 Corresponding Author: Ozan Akca, United States of America |
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