目的:尽管已知噪声会对血压(BP)测量产生负面影响,其对不同BP测量方法的影响尚不清楚。这项研究的目的是比较救护车内噪声水平下示波法和听诊法BP测量方法的一致性。
方法:该方法比较研究是在三级急诊科(ED)的50名健康志愿者中进行的。参与者分为两组,每组25人,由2名急诊医学技术人员(EMT)在嘈杂和周围环境中使用听诊和示波法测量BP。研究的主要目的是比较环境和嘈杂环境中听诊式汞血压计和自动听诊式BP测量的一致性。
结果:我们检查了在周围环境(46.75[IQR(41.2-55.18)]dB)中进行的BP的听诊和示波测量之间的一致性,并发现收缩压和舒张压BP均在研究前建立的一致性(LoA)水平内(收缩压BP[-13.96至8.48mmHG],舒张压血压[-7.44至8.08mmHg]);然而,在嘈杂环境中(92.35[IQR88-96.55]dB),收缩压和舒张压均超出LoA范围(收缩压[-37.77至9.94mmHg],舒张压血压[-21.73至16.37mmHg])。此外,我们发现在周围环境中,一致性相关系数高于嘈杂环境(0.943[0.906-0.966],0.957[0.93-0.974];0.574[0.419-0.697],0.544[0.326-0.707];收缩压和舒张压,分别)。
结论:这项研究的结果表明,噪声显着影响示波法和听诊法血压测量方法之间的一致性。
Although noise is known to negatively affect blood pressure (BP) measurements, its impact on different BP measurement methods remains unclear. The aim of this study is to compare the agreement of oscillometric and auscultatory BP measurement methods under in-ambulance noise levels.
This method-comparison study was conducted on 50 healthy volunteers in a tertiary emergency department (ED). Participants were divided into two groups of 25, and BP was measured using auscultatory and oscillometric methods in noisy and ambient environments by 2 emergency medicine technicians (EMT). The primary object of the study was to compare the agreement of auscultatory mercury sphygmomanometers and automated auscillometric BP measurements in ambient and noisy environments.
We examined the agreement between auscultative and oscillometric measurements of BP conducted in an ambient environment (46.75 [IQR (41.2--55.18)] dB) and found that both systolic and diastolic BP were within the level of agreement (LoA) established before the study (systolic BP [-13.96 to 8.48 mmHG], diastolic BP [-7.44 to 8.08 mmHg]); whereas, in noisy environment (92.35 [IQR 88-96.55] dB) both systolic and diastolic BP were outside the range of LoA (systolic BP [-37.77 to 9.94 mmHg], diastolic BP [-21.73 to 16.37 mmHg]). Additionally, we found that in ambient environments, concordance correlation coefficients were higher than in noisy environments (0.943 [0.906-0.966], 0.957 [0.93-0.974]; 0.574 [0.419-0.697], 0.544 [0.326-0.707]; systolic and diastolic BP, respectively).
The results of this study demonstrate that noise significantly affects the agreement between oscillometric and auscultatory blood pressure measurement methods.