Wightman Aaron
Division of Nephrology, Department of Pediatrics, University of Washington School of Medicine, 4800 Sand Point Way NE, Seattle, WA, 98105, USA.
Pediatr Nephrol. 2017 Apr;32(4):615-620. doi: 10.1007/s00467-016-3545-8. Epub 2016 Dec 9.
Time-limited trials of dialysis have been proposed as a third option in addition to initiation of treatment and comfort-care only in the setting of high uncertainty or discordance between the treating team and child/family or among the treating team.
CASE-DIAGNOSIS/TREATMENT: The index case was noted antenatally to have severe kidney disease and pulmonary hypoplasia. In light of the guarded, but uncertain prognosis and a lack of consensus among the treating team, as well as between the treating team and the family, a time-limited trial of dialysis was initiated. Six days later the child developed bacteremia due to infection of the dialysis catheter. The treating team felt this was a failure of the trial and that future dialysis should be withheld, the family disagreed.
A time-limited trial is a problematic option. Providers may be better suited by returning to the dichotomous choice of withholding or initiating treatment.
• Time-limited trials offer potential benefits in terms of alleviating the burden of decision-making in the setting of uncertainty, offering an opportunity to forecast a poor prognosis, help avoid interprofessional conflict, and providing support for patients, their families, and staff. • Time-limited trials have important limitations, including the use of time limits, difficulty in determining clear, meaningful endpoints, and different interpretations of a trial of therapy between parents and providers. • Decisions regarding the initiation, withholding, and withdrawal of dialysis should be made based on regular assessments of the benefits and burdens of the intervention for the child. • Pediatric nephrologists are better served to abandon the concept of time-limited trials.
除了在治疗团队与儿童/家庭之间或治疗团队内部存在高度不确定性或意见不一致的情况下开始治疗和仅提供舒适护理这两种选择外,还提出了限时透析试验作为第三种选择。
病例诊断/治疗:该索引病例在产前被发现患有严重肾病和肺发育不全。鉴于预后谨慎但不确定,且治疗团队内部以及治疗团队与家庭之间缺乏共识,因此启动了限时透析试验。六天后,该儿童因透析导管感染而发生菌血症。治疗团队认为这是试验失败,应停止未来的透析,而家庭对此表示不同意。
限时试验是一个有问题的选择。医疗服务提供者可能更适合回到停止或开始治疗的二分法选择上。
• 限时试验在减轻不确定性情况下的决策负担、提供预测不良预后的机会、帮助避免跨专业冲突以及为患者及其家庭和工作人员提供支持方面具有潜在益处。• 限时试验有重要局限性,包括使用时间限制、难以确定明确且有意义的终点,以及父母和医疗服务提供者对治疗试验的不同解读。• 关于透析开始、停止和撤机的决策应基于对该干预措施给儿童带来的益处和负担的定期评估。• 儿科肾病学家最好摒弃限时试验的概念。