Zeugswetter Florian K, Tichy Alexander, Weber Katharina
1 Clinical Department for Small Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria.
2 Platform Bioinformatics and Biostatistics, University of Veterinary Medicine Vienna, Vienna, Austria.
J Feline Med Surg. 2018 Oct;20(10):968-972. doi: 10.1177/1098612X17740795. Epub 2017 Nov 14.
Objectives The aims of the study were to compare the results of systolic blood pressure (SBP) measurements at the radial and coccygeal artery by Doppler ultrasonography and to assess the impact of gender, age, body weight, body condition score (BCS) and stress score on disagreements. Methods Eighty cats were included in this prospective, block randomised crossover trial. Blood pressure measurements were performed at home, during hospitalisation or in a local animal shelter by a single trained observer according to the latest ISFM consensus guidelines. Statistical analysis included Spearman's correlation and ANOVA. Results Measurement or site order had no effect on blood pressure measurements ( P = 0.157, P = 0.965). Correlation of radial and coccygeal SBP was moderate (r = 0.519, P <0.001) and measurements at the tail were by mean 18.7 ± 37 mmHg higher. The differences between the measuring sites were neither correlated with age (r = 0.044, P = 0.710) nor with body weight (r = 0.122, P = 0.337). A significant effect of BCS ( P = 0.016), but not gender ( P = 0.246) or stress score ( P = 0.424) was identified. Of the 25 cats with a coccygeal SBP ⩾170 mmHg, 14 (56%) were categorised as mildly hypertensive or normotensive when measurements were performed at the forelimb. Conclusions and relevance Choice of the measuring site, coccygeal vs radial artery, has a significant impact on Doppler ultrasonographic SBP results. In many cats, these discrepancies are huge and would certainly affect treatment decisions. Possible explanations include cone-shaped tails, especially in obese cats, leading to distal gapping or slippage of cylindrical cuffs and peripheral pulse pressure amplification. Further studies are urgently needed to clarify whether the discordances are artefacts or have a pathological background.
目的 本研究旨在比较通过多普勒超声测量桡动脉和尾动脉收缩压（SBP）的结果，并评估性别、年龄、体重、体况评分（BCS）和应激评分对测量差异的影响。方法 本前瞻性、区组随机交叉试验纳入了80只猫。由一名经过培训的观察者根据最新的国际猫医学协会（ISFM）共识指南，在家中、住院期间或当地动物收容所进行血压测量。统计分析包括Spearman相关性分析和方差分析。结果 测量顺序或测量部位对血压测量没有影响（P = 0.157，P = 0.965）。桡动脉和尾动脉SBP的相关性为中等（r = 0.519，P <0.001），尾动脉测量值平均高出18.7±37 mmHg。测量部位之间的差异与年龄（r = 0.044，P = 0.710）和体重（r = 0.122，P = 0.337）均无相关性。确定BCS有显著影响（P = 0.016），但性别（P = 0.246）或应激评分（P = 0.424）无显著影响。在25只尾动脉SBP≥170 mmHg的猫中，当在前肢进行测量时，14只（56%）被归类为轻度高血压或血压正常。结论及相关性 测量部位（尾动脉与桡动脉）的选择对多普勒超声SBP测量结果有显著影响。在许多猫中，这些差异很大，肯定会影响治疗决策。可能的解释包括尾巴呈锥形，尤其是在肥胖猫中，导致圆柱形袖带远端间隙或滑动以及外周脉压放大。迫切需要进一步研究以阐明这些差异是人为造成的还是具有病理背景。
