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Agreement between invasive and oscillometric arterial blood pressure measurements using the LifeWindow multiparameter monitor and two cuff sizes in anesthetized adult horses.
Veterinary Anaesthesia and Analgesia ( IF 1.4 ) Pub Date : 2020-01-24 , DOI: 10.1016/j.vaa.2020.01.001
Frédérik Rousseau-Blass 1 , Charlène Pigé 2 , Daniel Sj Pang 3
Affiliation  

Objective

To assess agreement between oscillometric noninvasive blood pressure (NIBP) measurements using LifeWindow monitors (LW9xVet and LW6000V) and invasive blood pressure (IBP). To assess the agreement of NIBP readings using a ratio of cuff width to mid-cannon circumference of 25% and 40%.

Study design

Prospective, randomized clinical study.

Animals

A total of 43 adult horses undergoing general anesthesia in dorsal recumbency for different procedures.

Methods

Anesthetic protocols varied according to clinician preference. IBP measurement was achieved after cannulation of the facial artery and connection to an appropriately positioned transducer connected to one of two LifeWindow multiparameter monitors (models: LW6000V and LW9xVet). Accuracy of monitors was checked daily using a mercury manometer. For each horse, NIBP was measured with two cuff widths (corresponding to 25% or 40% of mid-cannon bone circumference), both connected to the same monitor, and six paired IBP/NIBP readings were recorded (at least 3 minutes between readings). NIBP values were corrected to the relative level of the xiphoid process. A Bland–Altman analysis for repeated measures was used to assess bias (NIBP–IBP) and limits of agreement (LOAs).

Results

The 40% cuff width systolic arterial pressure [SAP; bias 7.9 mmHg, LOA –26.6 to 42.3; mean arterial pressure (MAP): bias 4.9 mmHg, LOA –28.2 to 38.0; diastolic arterial pressure (DAP): bias 4.2 mmHg, LOA –31.4 to 39.7)] performed better than the 25% cuff width (SAP: bias 26.4 mmHg, LOA –21.0 to 73.9; MAP: bias 15.7 mmHg, LOA –23.8 to 55.2; DAP: bias 10.9 mmHg, LOA –33.2 to 54.9).

Conclusions and clinical relevance

Using the LifeWindow multiparameter monitor in anesthetized horses, the 40% cuff width provided better agreement with IBP; however, both cuff sizes and both monitor models failed to meet American College of Veterinary Internal Medicine Consensus Statement Guidelines.



中文翻译:

使用LifeWindow多参数监护仪进行的侵入性和示波动脉血压测量与麻醉的成年马中的两个袖带尺寸之间的一致性。

目的

评估使用LifeWindow监视器(LW9xVet和LW6000V)进行示波法无创血压(NIBP)测量与有创血压(IBP)之间的一致性。为评估袖带宽度与大炮中段周长之比为25%和40%,NIBP读数的一致性。

学习规划

前瞻性随机临床研究。

动物

共有43匹成年马在背侧卧位进行不同的全身麻醉。

方法

麻醉方案根据临床医生的喜好而有所不同。在插入面部动脉并连接到与两个LifeWindow多参数监视器(型号:LW6000V和LW9xVet)之一相连的适当位置的传感器后,即可完成IBP测量。每天使用水银压力计检查监测仪的准确性。对于每匹马,使用两个袖带宽度(相当于大炮中骨骨围的25%或40%)测量NIBP,两个袖带宽度均连接到同一台显示器,并记录六对IBP / NIBP读数(两次读数之间至少间隔3分钟) )。将NIBP值校正为剑突的相对水平。重复测量的Bland-Altman分析用于评估偏倚(NIBP-IBP)和协议限制(LOA)。

结果

袖带宽度40%的收缩压[SAP; 偏压7.9 mmHg,LOA –26.6至42.3;平均动脉压(MAP):偏斜4.9 mmHg,LOA –28.2至38.0;舒张压(DAP):偏倚4.2 mmHg,LOA –31.4至39.7)]优于25%袖套宽度(SAP:偏斜26.4 mmHg,LOA –21.0至73.9; MAP:偏倚15.7 mmHg,LOA –23.8至55.2 ; DAP:偏压10.9 mmHg,LOA –33.2至54.9)。

结论与临床意义

在麻醉的马匹中使用LifeWindow多参数监视器时,袖带宽度40%可以更好地与IBP吻合。但是,袖带尺寸和监护仪型号均未达到美国兽医内部医学共识声明准则。

更新日期:2020-01-24
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