JAMA. 1995;274(20):1591-8.
To improve end-of-life decision making and reduce the frequency of a mechanically supported, painful, and prolonged process of dying.
A 2-year prospective observational study (phase I) with 4301 patients followed by a 2-year controlled clinical trial (phase II) with 4804 patients and their physicians randomized by specialty group to the intervention group (n = 2652) or control group (n = 2152).
Five teaching hospitals in the United States.
A total of 9105 adults hospitalized with one or more of nine life-threatening diagnoses; an overall 6-month mortality rate of 47%.
Physicians in the intervention group received estimates of the likelihood of 6-month survival for every day up to 6 months, outcomes of cardiopulmonary resuscitation (CPR), and functional disability at 2 months. A specifically trained nurse had multiple contacts with the patient, family, physician, and hospital staff to elicit preferences, improve understanding of outcomes, encourage attention to pain control, and facilitate advance care planning and patient-physician communication.
The phase I observation documented shortcomings in communication, frequency of aggressive treatment, and the characteristics of hospital death: only 47% of physicians knew when their patients preferred to avoid CPR: 46% of do-not-resuscitate (DNR) orders were written within 2 days of death; 38% of patients who died spent at least 10 days in an intensive care unit (ICU); and for 50% of conscious patients who died in the hospital, family members reported moderate to severe pain at least half the time. During the phase II intervention, patients experienced no improvement in patient-physician communication (eg, 37% of control patients and 40% of intervention patients discussed CPR preferences) or in the five targeted outcomes, ie, incidence or timing of written DNR orders (adjusted ratio, 1.02; 95% confidence interval [CI], 0.90 to 1.15), physicians' knowledge of their patients' preferences not to be resuscitated (adjusted ratio, 1.22; 95% CI, 0.99 to 1.49), number of days spent in an ICU, receiving mechanical ventilation, or comatose before death (adjusted ratio, 0.97; 95% CI, 0.87 to 1.07), or level of reported pain (adjusted ratio, 1.15; 95% CI, 1.00 to 1.33). The intervention also did not reduce use of hospital resources (adjusted ratio, 1.05; 95% CI, 0.99 to 1.12).
The phase I observation of SUPPORT confirmed substantial shortcomings in care for seriously ill hospitalized adults. The phase II intervention failed to improve care or patient outcomes. Enhancing opportunities for more patient-physician communication, although advocated as the major method for improving patient outcomes, may be inadequate to change established practices. To improve the experience of seriously ill and dying patients, greater individual and societal commitment and more proactive and forceful measured may be needed.
改善临终决策,减少机械支持、痛苦且延长的死亡过程的发生频率。
一项为期2年的前瞻性观察性研究(第一阶段),涉及4301名患者,随后是一项为期2年的对照临床试验(第二阶段),4804名患者及其医生按专业组随机分为干预组(n = 2652)或对照组(n = 2152)。
美国的五家教学医院。
共有9105名因九种危及生命的诊断中的一种或多种而住院的成年人;总体6个月死亡率为47%。
干预组的医生会收到患者直至6个月内每天的6个月生存可能性估计、心肺复苏(CPR)结果以及2个月时的功能残疾情况。一名经过专门培训的护士与患者、家属、医生和医院工作人员进行多次沟通,以了解患者偏好、增进对结果的理解、鼓励关注疼痛控制,并促进预先护理计划和医患沟通。
第一阶段观察记录了沟通方面的不足、积极治疗的频率以及医院死亡的特征:只有47%的医生知道患者何时倾向于避免心肺复苏;46%的不进行心肺复苏(DNR)医嘱在死亡前2天内开具;38%的死亡患者在重症监护病房(ICU)至少住了10天;对于50%在医院死亡的清醒患者,家属报告至少一半时间存在中度至重度疼痛。在第二阶段干预期间,患者在医患沟通方面(例如,37%的对照组患者和40%的干预组患者讨论了心肺复苏偏好)或五个目标结果方面均未得到改善,即书面DNR医嘱的发生率或时间(调整后比率为1.02;95%置信区间[CI],0.90至1.15)、医生对患者不接受心肺复苏偏好的了解情况(调整后比率为1.22;95%CI,0.99至1.49)、死亡前在ICU住院天数、接受机械通气天数或昏迷天数(调整后比率为0.97;95%CI,0.87至1.07)或报告的疼痛程度(调整后比率为1.15;95%CI,1.00至1.33)。该干预措施也未减少医院资源的使用(调整后比率为1.05;95%CI,0.99至1.12)。
SUPPORT研究的第一阶段观察证实了重症住院成年人护理方面存在重大不足。第二阶段干预未能改善护理或患者结局。增加医患沟通机会,尽管被倡导为改善患者结局的主要方法,但可能不足以改变既定做法。为改善重症和临终患者的体验,可能需要个人和社会做出更大的承诺以及采取更积极有力的措施。