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三种脉搏血氧仪测得的血氧饱和度差异。

Differences in partial oxygen saturation obtained from three pulse oximeters.

作者信息

Santos-Martínez Luis Efrén, Ureña-Plascencia Martha Vianey, Quevedo-Paredes Javier, Colín-Chávez Nancy Imelda, Durán-Vidauri Jessica Paola, Soto-Márquez Patricia

机构信息

Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Cardiología, Departamento de Hipertensión Pulmonar y Corazón Derecho.

Instituto Mexicano del Seguro Social, Centro Médico Nacional La Raza, Hospital de Especialidades "Dr. Antonio Fraga Mouret", Curso Profesional Técnico Universitario en Terapia Respiratoria.

出版信息

Rev Med Inst Mex Seguro Soc. 2020;58(4):385-393. doi: 10.24875/RMIMSS.M19000062.

DOI:10.24875/RMIMSS.M19000062
PMID:34543543
Abstract

INTRODUCCIÓN: Se estima que existe variabilidad en la medición de la saturación parcial de oxígeno entre distintos oxímetros de pulso.

OBJETIVO

Conocer la variabilidad de la medición de acuerdo con el oxímetro de pulso utilizado en la práctica clínica.

MATERIAL Y MÉTODOS: Diseño transversal, sujetos consecutivos. Se obtuvieron variables demográficas, ocupación y enfermedad. Se estimaron las diferencias en la variabilidad de tres oxímetros de pulso. Las variables nominales se informaron con frecuencias y porcentajes; las numéricas, con promedios y desviación estándar. La variabilidad se calculó con el estadístico de Bland-Altman y su magnitud con el coeficiente de correlación intraclase (intervalo de confianza del 95%).

RESULTADOS

Se estudiaron 255 pacientes con una edad promedio de 61 ± 15 años y un índice de masa corporal de 30.28 ± 6.59 kg/m2, de los cuales 145 (56.8%) fueron mujeres y 136 (53.33%) tuvieron hábito tabáquico. La ocupación y la enfermedad con mayor frecuencia fueron obrero (98; 38.43%) y enfermedad pulmonar obstructiva crónica (143; 56.08%). El promedio grupal de saturación arterial de oxígeno frente a saturación parcial de oxígeno fue de 91.28 ± 4.07% frente a 90.64 ± 3.89% (p < 0.0001). La diferencia media (límites de acuerdo) y el coeficiente de correlación intraclase (intervalo de confianza del 95%) fueron, respectivamente, para los tres oxímetros: Onyx II -0.5 (3.4, -4.3) y 0.949 (0.935, 0.960), Hergom 0.2 (3.4, -2.9) y 0.951 (0.937, 0.962), y Rossmax SB220 -1.6 (36.2, -39.5) y 0.784 (0.724, 0.831).

CONCLUSIONES

Los oxímetros de pulso Onyx II y Hergom tuvieron menor variabilidad, mientras que el Rossmax SB220 la tuvo muy amplia, por lo que no resulta aconsejable para uso clínico.

BACKGROUND

It may be estimated certain variability in the measurement of partial oxygen saturation between pulse oximeters.

OBJECTIVE

Describe the variability of partial oxygen saturation obtained from three different pulse oximeters.

MATERIAL AND METHODS

Cross design, consecutive subjects. Data related to demographic variables, occupation, diseases and differences in variability of three pulse oximeters was obtained. Nominal variables were reported with frequencies and percentages, numerical with averages and standard deviation; the variability was calculated with the Bland-Altman statistic and its magnitude with the intraclass correlation coefficient (95% confidence interval).

RESULTS

The 255 patients studied were aged between 61 ± 15 years, body mass index ranked 30.28 ± 6.59 kg/m2, 145 (56.8%) were female and 136 (53.33%) had tobacco smoking habit. The most frequent occupation were worker (98; 38.43%), and disease chronic obstructive pulmonary disease (143; 56.08%). Group average of arterial oxygen saturation vs. partial oxygen saturation: 91.28 ± 4.07% vs. 90.64 ± 3.89% (p < 0.0001). For the three oxymeters, the mean difference (limits of agreement) and the intraclass correlation coefficient (95% confidence interval) were respectively: Onyx-II −0.5 (3.4, −4.3), 0.949 (0.935, 0.960), Hergom 0.2 (3.4, −2.9), 0.951 (0.937, 0.962) and Rossmax SB220 −1.6 (36.2, −39.5), 0.784 (0.724, 0.831).

CONCLUSIONS

Onyx II and Hergom pulse oximeters had low variability, while SB220 showed ample variability and it is therefore, not advisable to use in clinical practice.

摘要

引言

据估计,不同脉搏血氧仪在测量氧分压饱和度时存在差异。

目的

了解临床实践中使用的脉搏血氧仪测量结果的差异。

材料与方法

采用横断面设计,选取连续的受试者。获取人口统计学变量、职业和疾病等信息。评估三种脉搏血氧仪测量差异的变异性。名义变量用频率和百分比表示;数值变量用平均值和标准差表示。变异性通过布兰德-奥特曼统计量计算,其大小通过组内相关系数(95%置信区间)表示。

结果

共研究255例患者,平均年龄61±15岁,体重指数为30.28±6.59kg/m²,其中145例(56.8%)为女性,136例(53.33%)有吸烟习惯。职业以工人居多(98例;38.43%),疾病以慢性阻塞性肺疾病居多(143例;56.08%)。动脉血氧饱和度与氧分压饱和度的组平均值分别为91.28±4.07%和90.64±3.89%(p<0.0001)。三种脉搏血氧仪的平均差异(一致性界限)和组内相关系数(95%置信区间)分别为:Onyx II -0.5(3.4,-4.3)和0.949(0.935,0.960),Hergom 0.2(3.4,-2.9)和0.951(0.937,0.962),Rossmax SB220 -1.6(36.2,-39.5)和0.784(0.724,0.831)。

结论

Onyx II和Hergom脉搏血氧仪的变异性较小,而Rossmax SB220的变异性非常大,因此不建议在临床实践中使用。

背景

脉搏血氧仪在测量氧分压饱和度时可能存在一定差异。

目的

描述三种不同脉搏血氧仪测得的氧分压饱和度的差异。

材料与方法

采用交叉设计,选取连续的受试者。获取与人口统计学变量、职业、疾病以及三种脉搏血氧仪变异性差异相关的数据。名义变量用频率和百分比报告,数值变量用平均值和标准差报告;变异性通过布兰德-奥特曼统计量计算,其大小通过组内相关系数(95%置信区间)表示。

结果

研究的255例患者年龄在61±15岁之间,体重指数为30.28±6.59kg/m²,145例(56.8%)为女性,136例(53.33%)有吸烟习惯。最常见的职业是工人(98例;38.43%),疾病是慢性阻塞性肺疾病(143例;56.08%)。动脉血氧饱和度与氧分压饱和度的组平均值:91.28±4.07%对90.64±3.89%(p<0.0001)。对于三种血氧仪,平均差异(一致性界限)和组内相关系数(95%置信区间)分别为:Onyx-II -0.5(3.4,-4.3),0.949(0.935,0.960),Hergom 0.2(3.4,-2.9),0.951(0.937,0.962)和Rossmax SB220 -1.6(36.2,-39.5),0.784(0.724,0.831)。

结论

Onyx II和Hergom脉搏血氧仪变异性低,而SB220变异性大,因此不建议在临床实践中使用。

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