Tenn-Lyn Nicole A, Doig Christopher James, Shemie Sam D, Teitelbaum Jeannie, Cass Dan E
Department of Medicine, University of Toronto, Canada.
Can J Anaesth. 2006 Jul;53(7):732-6. doi: 10.1007/BF03021634.
Eleven hospitals in Ontario are adult neurosurgical centres (ONCs). Patients transferred to ONCs from community hospitals with acute intracranial emergencies often have non-survivable injuries, and may be returned to the referring hospital for end-of-life care. These referring hospitals may not be familiar with neurological determination of death, or organ donation. Our objective was to determine the number of patients with severe brain injuries assessed in ONC emergency departments where progression to brain death may be reasonably expected, and to determine their outcome.
A one-year retrospective cohort study was undertaken using a convenience sample of patients transferred to eight ONCs for neurosurgical assessment, with evidence of either (a) brain death in the emergency department, or (b) severe brain injury who met criteria of a reasonable likelihood of progression to brain death. The outcome of these patients to disposition from the ONC was determined by chart review.
Three thousand four hundred and forty-seven patients were identified of whom 141 met inclusion criteria. Eleven patients (7.8%) were pronounced dead in the emergency department, 96 (68.1%) patients were admitted, and 34 (24.1%) were transferred back to their referring hospital. Fourteen patients (9.9%) became organ donors: two died in the emergency department and 12 died following admission.
A significant number of patients transferred to ONCs have an injury with a likelihood of progressing to brain death, but only a small proportion of these patients become organ donors. Emergency department triage, assessment and admission decisions for patients with intracranial catastrophes should consider diagnostic criteria for brain death and recognition of donor potential as part of end-of-life care.
安大略省的11家医院是成人神经外科中心(ONC)。从社区医院转至ONC治疗急性颅内急症的患者往往伤势无法挽救,可能会被转回转诊医院接受临终关怀。这些转诊医院可能不熟悉脑死亡判定或器官捐献。我们的目的是确定在ONC急诊科接受评估、有望发展为脑死亡的重度脑损伤患者数量,并确定其转归。
采用便利抽样法,对转至8家ONC进行神经外科评估的患者进行为期一年的回顾性队列研究,这些患者有以下两种情况之一的证据:(a)急诊科脑死亡;或(b)符合发展为脑死亡合理可能性标准的重度脑损伤。通过查阅病历确定这些患者从ONC转出后的转归。
共识别出3447例患者,其中141例符合纳入标准。11例患者(7.8%)在急诊科被宣布死亡,96例患者(68.1%)入院,34例患者(24.1%)转回转诊医院。14例患者(9.9%)成为器官捐献者:2例在急诊科死亡,12例在入院后死亡。
转至ONC的大量患者所受损伤有可能发展为脑死亡,但这些患者中只有一小部分成为器官捐献者。对于颅内灾难患者,急诊科的分诊、评估和入院决策应将脑死亡诊断标准和对捐献潜力的识别作为临终关怀的一部分加以考虑。