Burton Alexandra J, Nydam Daryl V, Ollivett Theresa L, Divers Thomas J
Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
J Am Vet Med Assoc. 2009 May 1;234(9):1177-82. doi: 10.2460/javma.234.9.1177.
To evaluate clinical variables assessed during the first 24 hours of hospitalization as prognostic indicators for nonambulatory cattle treated by use of a flotation tank.
Retrospective case series.
51 nonambulatory cattle that underwent flotation treatment.
Signalment, history, serum biochemical analyses, patient behavior during flotation, and outcome data were collected from medical records. Outcome was survival to discharge from the hospital or nonsurvival (death or euthanasia). Data were analyzed by use of Wilcoxon rank sum, Fisher exact, and chi(2) tests.
19 of 51 cattle survived. Survivors and nonsurvivors did not differ significantly with regard to median weight; age; stage of lactation; duration of recumbency prior to flotation; serum potassium, ionized calcium, or phosphate concentrations at admission to the hospital; or serum creatine kinase activity (value at admission to the hospital, highest value, and last recorded value). Cattle that were able to walk out of the tank after the first flotation treatment were 4.8 times as likely to survive as those that could not. Cattle that did not eat during flotation treatment were 1.9 times as likely to die as those that ate. Cattle that stood apparently normally on all limbs during the first flotation treatment were 2.9 times as likely to survive as those that had an asymmetric stance or were unable to stand.
Results indicated that objective variables evaluated during the first 24 hours of hospitalization and flotation treatment are associated with outcome among nonambulatory cattle; findings might assist in logical decision making with respect to treatment options.
评估住院治疗最初24小时内所评估的临床变量，作为使用漂浮槽治疗不能自主站立牛的预后指标。
回顾性病例系列研究。
51头接受漂浮治疗的不能自主站立牛。
从病历中收集动物特征、病史、血清生化分析结果、漂浮过程中的动物行为以及预后数据。预后情况为存活出院或未存活（死亡或安乐死）。采用Wilcoxon秩和检验、Fisher精确检验和卡方检验对数据进行分析。
51头牛中有19头存活。存活牛与未存活牛在中位数体重、年龄、泌乳阶段、漂浮前躺卧时间、入院时血清钾、离子钙或磷酸盐浓度，或血清肌酸激酶活性（入院时的值、最高值和最后记录值）方面无显著差异。首次漂浮治疗后能够走出漂浮槽的牛存活可能性是不能走出者的4.8倍。漂浮治疗期间未进食的牛死亡可能性是进食者的1.9倍。首次漂浮治疗期间四肢明显能正常站立的牛存活可能性是姿势不对称或无法站立者的2.9倍。
结果表明，住院治疗最初24小时及漂浮治疗期间所评估的客观变量与不能自主站立牛的预后相关；这些发现可能有助于在治疗方案方面做出合理决策。
