Vol 14: Pulse Oximeter Oxygen Saturation in Prediction of Arterial Oxygen Saturation in Liver Transplant Candidates.Report as inadecuate



 Vol 14: Pulse Oximeter Oxygen Saturation in Prediction of Arterial Oxygen Saturation in Liver Transplant Candidates.


Vol 14: Pulse Oximeter Oxygen Saturation in Prediction of Arterial Oxygen Saturation in Liver Transplant Candidates. - Download this document for free, or read online. Document in PDF available to download.

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This article is from Hepatitis Monthly, volume 14.AbstractBackground:: Liver transplant is the only definitive treatment for many patients with end stage liver disease. Presence and severity of preoperative pulmonary disease directly affect the rate of postoperative complications of the liver transplantation. Arterial blood gas ABG measurement, performed in many transplant centers, is considered as a traditional method to diagnose hypoxemia. Because ABG measurement is invasive and painful, pulse oximetry, a bedside, noninvasive and inexpensive technique, has been recommended as an alternative source for the ABG measurement. Objectives:: The aim of this study was to evaluate the efficacy of pulse oximetry as a screening tool in hypoxemia detection in liver transplant candidates and to compare the results with ABGs. Patients and Methods:: Three hundred and ninety transplant candidates 237 males and 153 females participated in this study. Arterial blood gas oxyhemoglobin saturation SaO2 was recorded and compared with pulse oximetry oxyhemoglobin saturation SpO2 results for each participants. The area under the curve AUC of receiver operating characteristic ROC curves was calculated by means of nonparametric methods to evaluate the efficacy of pulse oximetry to detect hypoxemia. Results:: Roc-derived SpO2 threshold of ≤ 94% can predict hypoxemia PaO2 60 mmHg with a sensitivity of 100% and a specificity of 95%. Furthermore, there are associations between the ROC-derived SpO2 threshold of ≤ 97% and detection of hypoxemia PaO2 70 mmHg with a sensitivity of 100% and a specificity of 46%. The accuracy of pulse oximetry was not affected by the severity of liver disease in detection of hypoxemia. Conclusions:: Provided that SpO2 is equal to or greater than 94%, attained from pulse oximetry can be used as a reliable and accurate substitute for the ABG measurements to evaluate hypoxemia in patients with end stage liver disease.



Author: Ghayumi, Seiyed Mohammad Ali; Khalafi-Nezhad, Abolfazl; Jowkar, Zahra

Source: https://archive.org/







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