Ewer M S, Taubert J K
Department of Medical Specialties, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA.
Cancer. 1995 Oct 1;76(7):1268-74. doi: 10.1002/1097-0142(19951001)76:7<1268::aid-cncr2820760726>3.0.co;2-u.
Advance directives are associated with considerable controversy. The goal of this study was to evaluate the outcomes of critically ill patients with cancer who were admitted to the intensive care unit and who previously had executed an advance directive. The problems associated with interpreting and honoring such documents in a tertiary cancer center also were reviewed.
A prospective observational study of patients with cancer with advance directives who were admitted to the intensive care unit of a major cancer hospital was undertaken. Twenty-six patients with directives were followed from the time of admission to the intensive care unit or, in the case of patients who presented their directives after admission, from the time of presentation of the directive until either discharge or death.
Twenty four of the 26 patients were placed on mechanical ventilators. Eight patients died while on the ventilator, nine were terminally weaned, and seven were weaned and survived for at least 24 hours. Of these seven patients, six died before being discharged from the hospital and one was discharged home. Delay in presenting the advance directive, conflict between the dictates of the living will and the wishes of the person named in the durable power of attorney, and controversy among health-care providers as to when in the course of disease the spirit of the advance directive had been met were the most frequent problems encountered; a number of other concerns were also identified.
Considerable controversy exists regarding advance directives, and such documents often leave room for confusion about patients' desires in particular clinical situations. Many of the problems identified in this study might be avoided and considerable cost savings achieved by the timely presentation of documents and by the evaluation of clinical goals on an ongoing basis.
预立医疗指示引发了相当大的争议。本研究的目的是评估入住重症监护病房且此前已签署预立医疗指示的癌症重症患者的治疗结果。同时还回顾了在三级癌症中心解读和遵循此类文件所涉及的问题。
对一家大型癌症医院重症监护病房收治的持有预立医疗指示的癌症患者进行了一项前瞻性观察研究。26名持有指示的患者从入住重症监护病房之时开始随访,对于入院后才出示指示的患者,则从出示指示之时开始随访,直至出院或死亡。
26名患者中有24名接受了机械通气。8名患者在通气期间死亡,9名患者最终撤机,7名患者撤机并存活至少24小时。在这7名患者中,6名在出院前死亡,1名出院回家。预立医疗指示出示延迟、生前遗嘱的规定与持久授权书中指定人员的意愿之间存在冲突,以及医疗服务提供者对于在疾病过程中何时符合预立医疗指示的精神存在争议,这些是最常遇到的问题;还发现了一些其他问题。
关于预立医疗指示存在相当大的争议,此类文件在特定临床情况下往往会让患者的意愿产生混淆。本研究中发现的许多问题可以通过及时出示文件和持续评估临床目标来避免,并可实现可观的成本节约。