Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada.
Clinique équine de Provence, Haras de la Trévaresse, Saint Cannat, France.
Vet Anaesth Analg. 2020 May;47(3):315-322. doi: 10.1016/j.vaa.2020.01.001. Epub 2020 Jan 24.
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%.
Prospective, randomized clinical study.
A total of 43 adult horses undergoing general anesthesia in dorsal recumbency for different procedures.
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).
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).
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.
评估使用 LifeWindow 监护仪（LW9xVet 和 LW6000V）进行的无创伤性血压（NIBP）测量与有创性血压（IBP）之间的一致性。评估袖带宽度与中炮骨周长比为 25%和 40%时的 NIBP 读数的一致性。
前瞻性、随机临床研究。
接受全身麻醉并仰卧位接受不同手术的 43 匹成年马。
麻醉方案根据临床医生的偏好而有所不同。在面部动脉插管并将其连接到适当位置的换能器后，即可进行 IBP 测量，该换能器连接到两个 LifeWindow 多参数监护仪（型号：LW6000V 和 LW9xVet）之一。每天使用水银血压计检查监护仪的准确性。对于每匹马，使用两个袖带宽度（分别对应中炮骨周长的 25%或 40%）测量 NIBP，两个袖带均连接到同一监护仪上，并记录六个配对的 IBP/NIBP 读数（读数之间至少间隔 3 分钟）。将 NIBP 值校正到剑突的相对水平。使用重复测量的 Bland-Altman 分析来评估偏差（NIBP-IBP）和界限（LOA）。
40%袖带宽度收缩压 [SAP；偏差 7.9mmHg，LOA -26.6 至 42.3；平均动脉压（MAP）：偏差 4.9mmHg，LOA -28.2 至 38.0；舒张压（DAP）：偏差 4.2mmHg，LOA -31.4 至 39.7] 的表现优于 25%袖带宽度（SAP：偏差 26.4mmHg，LOA -21.0 至 73.9；MAP：偏差 15.7mmHg，LOA -23.8 至 55.2；DAP：偏差 10.9mmHg，LOA -33.2 至 54.9）。
在麻醉马中使用 LifeWindow 多参数监护仪，40%袖带宽度与 IBP 具有更好的一致性；然而，两种袖带尺寸和两种监护仪型号均不符合美国兽医内科医师学会共识声明指南。
