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The effect of oxygen reserve index guided oxygen titration on oxidative stress in rhinoplasty surgery: a randomized controlled trial.

BMC anesthesiology 2025 Vol.25(1) p. 542 🔓 OA Nasal Surgery and Airway Studies
TL;DR It is concluded that ORi guided oxygen titration may reduce the severity of hyperoxia and may decrease oxidative stress in rhinoplasty surgery.
OpenAlex 토픽 · Nasal Surgery and Airway Studies Sinusitis and nasal conditions Airway Management and Intubation Techniques

Karakaşoğlu R, Geyik FD, Çevik BE, Saraçoğlu KT

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Abstract

[BACKGROUND] The aim of this study is to evaluate whether the use of Oxygen Reserve Index (ORi) can prevent hyperoxia in patients undergoing rhinoplasty surgery and whether it can reduce oxidative stress caused by hyperoxia.

[METHODS] A total of 60 patients, who were scheduled for rhinoplasty surgery and had an American Society of Anesthesiologists (ASA) score of I and II, were included in the study. The patients were randomly divided into two groups: the ORi group (Group R) and the control group (Group C). In Group R, oxygen support was titrated to keep the ORi values close to zero. In the control group, oxygen support was provided conventionally. Arterial blood gas samples were taken after intubation, at the 120th minute of the surgery and at the end of the surgery to record partial arterial oxygen pressure (PaO₂) values. During this process, patients' peripheral oxygen saturation (SpO₂) and ORi values were continuously recorded along with hemodynamic data. Preoperative and postoperative blood samples were collected from both groups, and oxidative stress was assessed by evaluating thiol-disulfide homeostasis and ischemia-modified albumin (IMA), which are current indicators of oxidative stress.

[RESULTS] The demographic characteristics and the surgical durations were similar between the groups. PaO₂ values were lower in Group R compared to Group C. ORi values were correlated with PaO₂ values. Preoperative native thiol, total thiol, and disulfide values were similar in both groups. In both groups, postoperative native thiol, total thiol, and disulfide values decreased compared to the preoperative period, while IMA values increased. In Group R, the decrease in native thiol and total thiol values and the increase in IMA values were less than in Group C.

[CONCLUSION] We concluded that ORi guided oxygen titration may reduce the severity of hyperoxia and may decrease oxidative stress in rhinoplasty surgery.

[TRIAL REGISTRATION] ClinicalTrials.gov Identifier NCT07158073. Registered on 21 August 2025.

추출된 의학 개체 (NER)

유형영어 표현한국어 / 풀이UMLS CUI출처등장
시술 rhinoplasty 코성형술 dict 4
해부 IMA → ischemia-modified albumin scispacy 1
약물 oxygen C0030054
oxygen
scispacy 1
약물 hyperoxia C0242706
Hyperoxia
scispacy 1
약물 ASA → American Society of Anesthesiologists C2346733
American Society of Anesthesiologists
scispacy 1
약물 disulfide C0012771
Disulfides
scispacy 1
약물 peripheral oxygen scispacy 1
약물 thiol-disulfide scispacy 1
약물 ORi → Oxygen Reserve Index scispacy 1
기타 ORi → Oxygen Reserve Index scispacy 1
기타 Arterial blood gas samples scispacy 1
기타 arterial scispacy 1
기타 ischemia-modified albumin scispacy 1

MeSH Terms

Humans; Oxidative Stress; Male; Female; Rhinoplasty; Adult; Oxygen; Hyperoxia; Middle Aged; Oxygen Saturation; Young Adult; Blood Gas Analysis; Oxygen Inhalation Therapy; Serum Albumin, Human; Biomarkers

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