此页面是自动翻译的,不保证翻译的准确性。请参阅 英文版 对于源文本。

Harnessing Alternative Resources to Aid Kenyans With Acute Illness (HARAKA-2)

2020年4月12日 更新者:Dr. Wangari Waweru-Siika、Aga Khan University

Impact of Nurse-Led Focused Cardiac Ultrasound Versus Usual Care on Time to Diagnosis in Adults With Cardiorespiratory Failure: A Two-Cluster Stepped Wedge Clinical Feasibility Trial

Kenya does not have enough experts to perform heart scans in patients who are very sick and in need of urgent intervention. The purpose of this research is to find out whether training Kenyan nurses to perform basic heart scans would shorten the time it takes to know whether the heart and lungs are working normally in very sick patients, to guide treatment. Patients will be placed into one of two groups: One group will have a quick scan of the heart and lungs carried out by trained nurses to see how well these organs are working, in addition to receiving the normal care offered at the hospital. The other group will receive the normal care offered in the hospital only and will not have a scan performed by these nurses. The time it takes to make a diagnosis between the two groups will then be compared. Should the group that has heart scans by nurses be found to spend less time waiting for a diagnosis to be made, more nurses in Kenya will be trained to provide this service, to minimise delays in our emergency departments.

研究概览

详细说明

Echocardiography is a useful, non-invasive diagnostic tool in time-critical emergencies. A national shortage of cardiologists and of doctors in Kenya however further compounds the problem of insufficient staff for emergency care and of any capacity building efforts. To achieve the goals of Sustainable Development Goal Number 3 (SDG-3) and realise the government's vision of universal healthcare for all, alternatives to the human resource challenge are key. Modifying the Scope of Practice of Kenyan nurses is one possible solution. Task-shifting traditionally cardiologist roles such as focused cardiac ultrasound (FoCUS) could shorten the time it takes to make a diagnosis in patients with cardiorespiratory failure of likely cardiac origin, making prolonged turnaround times in our public facilities a thing of the past. Our overarching aim is to harness the power of nurses doing FoCUS. The central hypothesis of this work is that in patients with cardiorespiratory failure, a nurse-led FoCUS-guided service would shorten time to diagnosis, supporting interventions and improving outcomes among the critically ill. Insight into potential barriers and enablers for the implementation of a nurse-performed FoCUS service in Kenya is crucial for the success of such a service redesign.

研究类型

介入性

注册 (预期的)

732

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria:

Any one of:

  • Systolic blood pressure <90 millimetres of mercury (mmHg)
  • Mean arterial pressure (MAP)<65 millimetres of mercury (mmHg)
  • Shock index >1 (heart rate/systolic blood pressure)
  • Respiratory rate > 30 breaths/minute
  • Oxygen saturations <94%
  • Arterial oxygen partial pressure (paO2) <60 millimetres of mercury (mmHg)
  • Arterial carbon dioxide partial pressure (paCO2) >50 millimetres of mercury(mmHg)

Exclusion Criteria:

  • Trauma
  • Pregnancy
  • Patients requiring immediate life-saving interventions eg cardiopulmonary resuscitation (CPR) or defibrillation

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:诊断
  • 分配:非随机化
  • 介入模型:顺序分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
有源比较器:Usual care
The control arm will consist of usual care ie a combination of physical examination, lab tests and imaging. The need for a formal echocardiographic evaluation by a cardiologist or cardiac sonographer in patients assigned to the control arm will be at the discretion of the clinical teams, as is usual care at the Kenyatta National Hospital (KNH) and Aga Khan University Hospital Nairobi (AKUHN). A diagnosis will be selected based on the same pre-defined checklist and the time the diagnosis is made recorded.
The control arm will consist of usual care ie a combination of physical examination, lab tests and imaging. The need for a formal echocardiographic evaluation by a cardiologist or cardiac sonographer in patients assigned to the control arm will be at the discretion of the clinical teams, as is usual care at KNH and AKUHN
实验性的:Nurse-performed focused cardiac ultrasound (FoCUS)
The experimental arm will consist of nurse-performed FoCUS for patients with cardiorespiratory failure. A FoCUS-trained nurse will perform a FoCUS examination within 30 minutes of triage by the triage clinician. The Philips Lumify® handheld ultrasound device (HUD) with a phased array probe will be used and studies limited to a maximum of 10 minutes each. A presumptive diagnosis will then be selected by the nurse from a FoCUS checklist based on pre-defined thresholds for each FoCUS target condition and the time the diagnosis is made recorded. Additional imaging and lab tests may be requested at the discretion of the clinical team but the FoCUS nurses will be blinded to the results of these.
A FoCUS-trained nurse will perform a FoCUS examination within 30 minutes of triage by the triage clinician. The Philips Lumify® handheld ultrasound device (HUD) with a phased array probe will be used and studies limited to a maximum of 10 minutes each. A presumptive diagnosis will then be selected by the nurse from a FoCUS checklist based on pre-defined thresholds for each FoCUS target condition and the time the diagnosis is made recorded. Additional imaging and lab tests may be requested at the discretion of the clinical team but the FoCUS nurses will be blinded to the results of these.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Time to diagnosis
大体时间:24 hours
Difference in median time to diagnosis between nurse-performed FoCUS and usual care.
24 hours

次要结果测量

结果测量
措施说明
大体时间
Number of patients with cardiorespiratory failure who have a FoCUS exam performed in A&E
大体时间:10 months
Number of patients with cardiorespiratory failure who have a FoCUS
10 months
Proportion of patients with cardiorespiratory failure who have a FoCUS exam performed in A&E
大体时间:10 months
Proportion of patients with cardiorespiratory failure who have a FoCUS
10 months
Diagnostic accuracy of nurse-performed FoCUS
大体时间:10 months
Sensitivity and specificity of novice FoCUS compared to a reference standard (cardiologist opinion)
10 months
Number of FoCUS protocol components suitable for inclusion in a local FoCUS curriculum
大体时间:10 months
Number of FoCUS protocol components suitable for inclusion in a local FoCUS curriculum
10 months
Proportion of novice scanners able to access remote supervision for FoCUS practice.
大体时间:10 months
Proportion of novice scanners able to access remote supervision for FoCUS practice.
10 months

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Wangari Waweru-Siika, FRCA、Aga Khan University, Nairobi

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (预期的)

2020年6月1日

初级完成 (预期的)

2021年4月30日

研究完成 (预期的)

2021年4月30日

研究注册日期

首次提交

2020年4月7日

首先提交符合 QC 标准的

2020年4月12日

首次发布 (实际的)

2020年4月14日

研究记录更新

最后更新发布 (实际的)

2020年4月14日

上次提交的符合 QC 标准的更新

2020年4月12日

最后验证

2020年4月1日

更多信息

与本研究相关的术语

其他研究编号

  • 31-20

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

是的

IPD 计划说明

Available on request

IPD 共享时间框架

6 months after publication

IPD 共享访问标准

Available on request

IPD 共享支持信息类型

  • 研究方案
  • 树液
  • 国际碳纤维联合会
  • 分析代码
  • 企业社会责任

药物和器械信息、研究文件

研究美国 FDA 监管的药品

研究美国 FDA 监管的设备产品

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

Usual care的临床试验

3
订阅