Preprint Case Report Version 1 Preserved in Portico This version is not peer-reviewed

Causes and Treatment of Hypoxia During Total Hip Arthroplasty in Elderly Patients: Case Report

Version 1 : Received: 25 October 2021 / Approved: 26 October 2021 / Online: 26 October 2021 (12:36:47 CEST)

How to cite: Ji, J.Y.; Chung, J.H.; Kim, N.S.; Seo, Y.H.; Jung, H.S.; Chun, H.R.; Gong, H.Y.; Kim, W.J.; Ahn, J.M.; Park, Y.J. Causes and Treatment of Hypoxia During Total Hip Arthroplasty in Elderly Patients: Case Report. Preprints 2021, 2021100386 (doi: 10.20944/preprints202110.0386.v1). Ji, J.Y.; Chung, J.H.; Kim, N.S.; Seo, Y.H.; Jung, H.S.; Chun, H.R.; Gong, H.Y.; Kim, W.J.; Ahn, J.M.; Park, Y.J. Causes and Treatment of Hypoxia During Total Hip Arthroplasty in Elderly Patients: Case Report. Preprints 2021, 2021100386 (doi: 10.20944/preprints202110.0386.v1).

Abstract

There are several causes of hypoxia during and after surgery, and atelectasis is a common symptom that occurs during surgery. In particular, elderly patients are more vulnerable to hypoxia due to their existing lung diseases or respiratory muscle weakness. This study presents the cases of two elderly patients who developed hypoxia during total hip arthroplasty under general anesthesia. Positive end expiratory pressure, recruitment maneuver, and increased fraction of inspired oxygen improved hypoxia only temporarily, and patients’ oxygen saturation level again dropped to 79%–80%. We suspected that hypoxia was caused by atelectasis and, therefore, re-sumed spontaneous respiration. Thereafter, both the patients showed an improvement in hypoxia. Intraopera-tive hypoxia that is suspected to be caused by atelectasis can be improved by securing sufficient lung volume for respiration through increased muscle tone with spontaneous respiration

Keywords

Atelectasis; Hypoxia; Old age; Spontaneous respiration

Subject

MEDICINE & PHARMACOLOGY, Anesthesiology

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