Pulse Oximetry Is Accurate in Acute Anemia From Hemorrhage

Jay, Gregory D.; Hughes, L.A.; Renzi, Francis P.

doi:10.1016/s0196-0644(94)70158-x

Cited by 54 publications

(16 citation statements)

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“…The same results were found in another study of medical doctors working at a teaching hospital who had been taught accurate measurement techniques immediately before the study [15]. Pulse oximetry is a popular monitoring method widely used in various settings [16–20]. Peripheral oxygen saturation (SpO 2 ) is an objective, efficient and unequivocal parameter for screening patient pulmonary function [21, 22].…”

Section: Introductionmentioning

confidence: 59%

The new trauma score (NTS): a modification of the revised trauma score for better trauma mortality prediction

et al. 2017

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BackgroundSince its introduction, the Revised Trauma Score (RTS) has been widely used to determine the prognosis of trauma patients. Recent studies have revealed a need to change the parameters of the RTS. We have designed a new trauma score (NTS) based on revised parameters, including the adoption of the actual Glasgow Coma Scale (GCS) score instead of a GCS code, the revision of the systolic blood pressure interval used for the code value and the incorporation of peripheral oxygen saturation (SpO2) instead of respiratory rate. The purpose of this study was to evaluate the predictive performance of the NTS for in-hospital mortality compared with the RTS and other trauma scores.MethodsThis was a prospective observational study using data from the trauma registry of a tertiary hospital. The subjects were selected from patients who arrived at the ED between July 1, 2014, and June 30, 2016, and, for external validation purposes, those who arrived at the ED between July 1, 2011, and June 30, 2013. Demographic data and physiological data were analyzed. NTS models were calculated using logistic regression for GCS score, SBP code values, and SpO2. The mortality predictive performance of NTS was compared with that of other trauma scores.ResultsA total of 3263 patients for derivation and 3106 patients for validation were included in the analysis. The NTS showed better discrimination than the RTS (AUC = 0.935 vs. 0.917, respectively, AUC difference = 0.018, p = 0.001; 95% CI, 0.0071–0.0293) and similar discrimination to that of mechanism, Glasgow Coma scale, age, and arterial pressure (MGAP) and the Glasgow Coma Scale, age, and systolic arterial pressure (GAP). In the validation cohort, the global properties of the NTS for mortality prediction were significantly better than those of the RTS (AUC = 0.919 vs. 0.906, respectively; AUC difference = 0.013, p = 0.013; 95% CI, 0.0009–0.0249) and similar to those of the MGAP and GAP.ConclusionsThe NTS predicts in-hospital mortality substantially better than the RTS.

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Section: Introductionmentioning

confidence: 59%

The new trauma score (NTS): a modification of the revised trauma score for better trauma mortality prediction

et al. 2017

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“…[1][2][3][4][5] Pulse oximetry has been advocated as an accurate, simple, and noninvasive method of measuring arterial oxygen saturation (Sao 2 ). 6 Pulse oximetry can accurately measure normal Sao 2 and reliably detect desaturation under a variety of conditions [7][8][9][10][11] and may improve our ability to assess the cardiorespiratory status of infants and children. Recent technical advances have enabled the production of inexpensive portable oximeters that make routine pulse oximetry screening possible at low cost.…”

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confidence: 99%

Pulse Oximetry as a Fifth Pediatric Vital Sign

Mower¹,

et al. 1997

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ABSTRACT. Purpose. To determine the utility of pulse oximetry as a routine fifth vital sign in acute pediatric assessment.Design. Prospective study using pulse oximetry to measure oxygen saturation in children presenting to emergency department triage. Saturation values were disclosed to clinicians only after they had completed medical evaluations and were ready to discharge or admit each child. We measured changes in medical treatment and diagnoses initiated after the disclosure of pulse oximetry values.Setting and Participants. The study included 2127 consecutive children presenting to triage at a university emergency department.Measurements. Changes in select diagnostic tests: chest radiography, complete blood count, spirometry, arterial blood gases, pulse oximetry, and ventilation-perfusion scans; treatments: antibiotics, ␤-agonists, supplemental oxygen; and hospital admission and final diagnoses that occurred after disclosure of triage pulse oximetry values.Results. Of 305 children having triage pulse oximetry values less than 95%, physicians ordered second oximetry for 49, additional chest radiography for 16, complete blood counts for 7, arterial blood gas measurements for 4, spirometry for 2, and ventilation-perfusion scans for 2. Physicians ordered 39 new therapies for 33 patients, including antibiotics for 15, supplemental oxygen for 11, and ␤-agonists for 8. Five patients initially scheduled for hospital discharge were subsequently admitted. Physicians changed or added diagnoses in 25 patients.Conclusions. Using pulse oximetry as a routine fifth vital sign resulted in important changes in the treatment of a small proportion of pediatric patients. Pediatrics 1997;99:681-686; oximetry, vital signs, triage, oxygen saturation.ABBREVIATIONS. Sao 2 , arterial oxygen saturation; ED, emergency department.Simple clinical signs, including respiratory rate, presence of retractions or nasal flaring, grunting, cyanosis, pallor, and general appearance, are used to assess the cardiorespiratory status of infants and children. Previous investigators have found that although these clinical signs are frequently present, their absence does not reliably exclude the possibility of serious cardiopulmonary disease or lower respiratory tract infections.

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“…Additional inaccuracies are caused by methylene blue, indocyanine green, sickling red cells, and the presence of dyshemoglobinemias (40). Anemia and hyperbilirubinemia do not affect the accuracy of S p O 2 (40,41).…”

Section: Pulse Oximetrymentioning

confidence: 99%