ArticleFrontiers in surgery2026
Noninvasive predictive value of preoperative perfusion index for intraoperative hemodynamic fluctuations in patients undergoing lower-extremity orthopedic surgery under regional anesthesia: a retrospective cohort study.
Article in Frontiers in surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To investigate the predictive value of the preoperative perfusion index (PI) for intraoperative hemodynamic fluctuations in patients undergoing lower extremity surgery. Methods: A retrospective analysis was conducted on 247 patients who underwent orthopedic lower extremity surgery at Wuchang Hospital from May 2022 to September 2024. Based on the occurrence of intraoperative hemodynamic fluctuations, patients were divided into a hemodynamically unstable group ( Results: Among the 247 patients, 87 (35.22%) experienced intraoperative hemodynamic instability. Compared with the hemodynamically stable group, the unstable group had significantly lower preoperative PI levels (2.52 ± 1.02 vs. 3.96 ± 1.41, Conclusion: Preoperative PI can effectively predict intraoperative hemodynamic fluctuations in patients undergoing lower extremity surgery. When combined with hemodynamic parameters and underlying comorbidities, preoperative PI offers significantly enhanced predictive performance and clinical net benefit for hemodynamic fluctuations.
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