围产期荷斯坦奶牛血钙水平与心电图变量ST段间期的关系。

Relationship between blood calcium level and ST peak interval of electrocardiographic variables in peripartum Holstein cows.

作者信息

Itoh Megumi, Sakurai Yoshie, Nakajima Yasuhiro, Kawamoto Satoshi

机构信息

Department of Clinical Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan.

出版信息

J Vet Med Sci. 2016 Jan;77(12):1655-7. doi: 10.1292/jvms.15-0205. Epub 2015 Jun 27.

DOI:10.1292/jvms.15-0205

PMID:26118411

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4710724/

Abstract

The association between blood calcium levels and electrocardiographic variables was compared in 137 normal parturient and 36 peripartum recumbent Holstein cows to determine whether hypocalcemia in peripartum dairy cows can be rapidly diagnosed using electrocardiograph. Inverse of STc (ST peak interval/SS interval(0.5)) and blood ionized calcium or serum calcium concentrations were strongly correlated, and both correlation coefficients were 0.81 (P<0.001). The 95% prediction interval indicated that cows with STc >0.385 ± 0.001 sec are very likely to be hypocalcemic (blood ionized or serum calcium concentrations of <0.9 mmol/l or <7.5 mg/dl, respectively). These findings indicate that hypocalcemia in parturient cows can be non-invasively estimated using the STc.

摘要

对137头正常分娩的奶牛和36头围产期躺卧的荷斯坦奶牛的血钙水平与心电图变量之间的关联进行了比较，以确定是否可以使用心电图快速诊断围产期奶牛的低钙血症。STc（ST段峰值间期/SS间期（0.5））的倒数与血离子钙或血清钙浓度密切相关，相关系数均为0.81（P<0.001）。95%预测区间表明，STc>0.385±0.001秒的奶牛极有可能出现低钙血症（血离子钙或血清钙浓度分别<0.9 mmol/L或<7.5 mg/dL）。这些发现表明，分娩奶牛的低钙血症可以通过STc进行无创评估。