PURPOSE: The incidence of hypoxemia in patients undergoing surgery is largely unknown and may have a clinical impact. The objective of this study was to determine the incidence of intraoperative hypoxemia in a large surgical population. METHODS: We performed a retrospective study of electronically recorded pulse oximetry data obtained from two large academic medical centres. All adults (age ≥ 16 yr) undergoing non-cardiac surgery during a three-year period at the two hospitals were included in the analysis. Our main outcome measure was the percentage of patients with episodes of hypoxemia (SpO(2) < 90) or severe hypoxemia (SpO(2) ≤ 85) for two minutes or longer during the intraoperative period (induction of anesthesia, surgery, and emergence). RESULTS: We evaluated 95,407 electronic anesthesia records at the two hospitals. During the intraoperative period, 6.8% of patients had a hypoxemic event, and 3.5% of patients had a severely hypoxemic event of two consecutive minutes or longer. Seventy percent of the hypoxemic episodes occurred during either induction or emergence- time periods that represent 21% of the total intraoperative time. From induction to emergence, one episode of hypoxemia occurred every 28.9 hr, and one episode of severe hypoxemia occurred every 55.7 hr of intraoperative time. CONCLUSION: Despite advances in monitoring technology, hypoxemia continues to occur commonly in the operating room and may be a serious safety concern because of its potential impact on end organ function and long-term outcomes. Further studies are needed to improve our understanding of the clinical impact of intraoperative hypoxemia and the strategies that will be most useful in minimizing its occurrence.
PURPOSE: The incidence of hypoxemia in patients undergoing surgery is largely unknown and may have a clinical impact. The objective of this study was to determine the incidence of intraoperative hypoxemia in a large surgical population. METHODS: We performed a retrospective study of electronically recorded pulse oximetry data obtained from two large academic medical centres. All adults (age ≥ 16 yr) undergoing non-cardiac surgery during a three-year period at the two hospitals were included in the analysis. Our main outcome measure was the percentage of patients with episodes of hypoxemia (SpO(2) < 90) or severe hypoxemia (SpO(2) ≤ 85) for two minutes or longer during the intraoperative period (induction of anesthesia, surgery, and emergence). RESULTS: We evaluated 95,407 electronic anesthesia records at the two hospitals. During the intraoperative period, 6.8% of patients had a hypoxemic event, and 3.5% of patients had a severely hypoxemic event of two consecutive minutes or longer. Seventy percent of the hypoxemic episodes occurred during either induction or emergence- time periods that represent 21% of the total intraoperative time. From induction to emergence, one episode of hypoxemia occurred every 28.9 hr, and one episode of severe hypoxemia occurred every 55.7 hr of intraoperative time. CONCLUSION: Despite advances in monitoring technology, hypoxemia continues to occur commonly in the operating room and may be a serious safety concern because of its potential impact on end organ function and long-term outcomes. Further studies are needed to improve our understanding of the clinical impact of intraoperative hypoxemia and the strategies that will be most useful in minimizing its occurrence.
Authors: M Sesmu Arbous; Anneke E E Meursing; Jack W van Kleef; Jaap J de Lange; Huub H A J M Spoormans; Paul Touw; Frans M Werner; Diederick E Grobbee Journal: Anesthesiology Date: 2005-02 Impact factor: 7.892
Authors: J T Moller; N W Johannessen; K Espersen; O Ravlo; B D Pedersen; P F Jensen; N H Rasmussen; L S Rasmussen; T Pedersen; J B Cooper Journal: Anesthesiology Date: 1993-03 Impact factor: 7.892
Authors: J T Moller; T Pedersen; L S Rasmussen; P F Jensen; B D Pedersen; O Ravlo; N H Rasmussen; K Espersen; N W Johannessen; J B Cooper Journal: Anesthesiology Date: 1993-03 Impact factor: 7.892
Authors: Mark Ram Borgaonkar; Lawrence Hookey; Roger Hollingworth; Ernst J Kuipers; Alan Forster; David Armstrong; Alan Barkun; Ron Bridges; Rose Carter; Chris de Gara; Catherine Dube; Robert Enns; Donald Macintosh; Sylviane Forget; Grigorios Leontiadis; Jonathan Meddings; Peter Cotton; Roland Valori Journal: Can J Gastroenterol Date: 2012-02 Impact factor: 3.522
Authors: Iahn Cajigas; Anil K Mahavadi; Ashish H Shah; Veronica Borowy; Nathalie Abitbol; Michael E Ivan; Ricardo J Komotar; Richard H Epstein Journal: J Neurooncol Date: 2019-10-22 Impact factor: 4.130
Authors: Jesse M Ehrenfeld; Matthew D McEvoy; William R Furman; Dylan Snyder; Warren S Sandberg Journal: Anesthesiology Date: 2014-01 Impact factor: 7.892
Authors: Justine D Landin; Jonathan K Gore-Langton; Elena I Varlinskaya; Linda P Spear; David F Werner Journal: Alcohol Clin Exp Res Date: 2020-02-18 Impact factor: 3.455
Authors: Karim S Ladha; Rie Kato; Lawrence C Tsen; Brian T Bateman; Toshiyuki Okutomi Journal: Int J Obstet Anesth Date: 2017-06-20 Impact factor: 2.603