Abstract：
OBJECTIVE: To assess the relationship between shock index (SI) and mortality in dogs with head trauma (HT). A secondary objective was to compare SI with the animal trauma triage (ATT) score and Modified Glasgow Coma Scale (MCGS) score in HT cases. A tertiary aim was to assess if SI is predictive of survival to discharge or improvement in presenting neurologic signs.
METHODS: Retrospective study from January 2015 to December 2020.
METHODS: Tertiary referral level II veterinary trauma center.
METHODS: Eighty-six dogs with evidence of HT presenting through emergency for various traumas compared to 60 healthy control dogs.
RESULTS: SI was calculated using the quotient of heart rate over systolic blood pressure measured on presentation. SI was significantly higher in HT patients than healthy controls (P = 0.0019). SI was not significantly different between traumatic brain injury dogs that died or were euthanized and HT dogs that lived until the time of discharge (P = 0.98). SI was not significantly different between HT dogs that were neurologically normal at the time of discharge and HT dogs that were static or improved but not normal neurologically at the time of discharge (P = 0.84). In HT dogs, SI did not correlate with ATT score (P = 0.16) or MGCS score (P = 0.75). There was no significant difference in SI and length of hospitalization until death or discharge (P = 0.78).
CONCLUSIONS: SI was significantly higher in HT patients compared to control patients. Interestingly, SI was not correlated with ATT score or MGCS score. The use of SI in HT patients warrants further investigation to assess the efficacy in predicting mortality.
METHODS: Retrospective study from January 2015 to December 2020.
METHODS: Tertiary referral level II veterinary trauma center.
METHODS: Eighty-six dogs with evidence of HT presenting through emergency for various traumas compared to 60 healthy control dogs.
RESULTS: SI was calculated using the quotient of heart rate over systolic blood pressure measured on presentation. SI was significantly higher in HT patients than healthy controls (P = 0.0019). SI was not significantly different between traumatic brain injury dogs that died or were euthanized and HT dogs that lived until the time of discharge (P = 0.98). SI was not significantly different between HT dogs that were neurologically normal at the time of discharge and HT dogs that were static or improved but not normal neurologically at the time of discharge (P = 0.84). In HT dogs, SI did not correlate with ATT score (P = 0.16) or MGCS score (P = 0.75). There was no significant difference in SI and length of hospitalization until death or discharge (P = 0.78).
CONCLUSIONS: SI was significantly higher in HT patients compared to control patients. Interestingly, SI was not correlated with ATT score or MGCS score. The use of SI in HT patients warrants further investigation to assess the efficacy in predicting mortality.
摘要：
目的：评估休克指数（SI）与头部创伤（HT）犬死亡率之间的关系。次要目标是将SI与HT病例的动物创伤分类（ATT）评分和改良的格拉斯哥昏迷量表（MCGS）评分进行比较。第三个目的是评估SI是否可以预测存活到出院或改善神经系统症状。
方法：2015年1月至2020年12月的回顾性研究。
方法：三级转诊二级兽医创伤中心。
方法：与60只健康对照犬相比，86只狗有证据表明HT通过各种创伤的紧急情况出现。
结果：SI是使用演示时测量的心率与收缩压的商来计算的。HT患者的SI明显高于健康对照组（P=0.0019）。死亡或安乐死的创伤性脑损伤犬和直到出院为止的HT犬之间的SI没有显着差异（P=0.98）。在出院时神经学正常的HT犬和在出院时处于静态或改善但神经学不正常的HT犬之间的SI没有显着差异（P=0.84）。在HT狗中，SI与ATT评分（P=0.16）或MGCS评分（P=0.75）无关。直到死亡或出院的SI和住院时间没有显着差异（P=0.78）。
结论：与对照组患者相比，HT患者的SI明显更高。有趣的是,SI与ATT评分或MGCS评分无关。在HT患者中使用SI值得进一步研究以评估预测死亡率的功效。
方法：2015年1月至2020年12月的回顾性研究。
方法：三级转诊二级兽医创伤中心。
方法：与60只健康对照犬相比，86只狗有证据表明HT通过各种创伤的紧急情况出现。
结果：SI是使用演示时测量的心率与收缩压的商来计算的。HT患者的SI明显高于健康对照组（P=0.0019）。死亡或安乐死的创伤性脑损伤犬和直到出院为止的HT犬之间的SI没有显着差异（P=0.98）。在出院时神经学正常的HT犬和在出院时处于静态或改善但神经学不正常的HT犬之间的SI没有显着差异（P=0.84）。在HT狗中，SI与ATT评分（P=0.16）或MGCS评分（P=0.75）无关。直到死亡或出院的SI和住院时间没有显着差异（P=0.78）。
结论：与对照组患者相比，HT患者的SI明显更高。有趣的是,SI与ATT评分或MGCS评分无关。在HT患者中使用SI值得进一步研究以评估预测死亡率的功效。
