Rapid Induction of Therapeutic Hypothermia
快速诱导治疗性低温
基本信息
- 批准号:8627980
- 负责人:
- 金额:$ 56.39万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-07-05 至 2015-03-31
- 项目状态:已结题
- 来源:
- 关键词:AcuteAdoptedAdoptionAirAnimalsArrhythmiaBasic ScienceBlood CirculationBlood VesselsBlood flowBody TemperatureBrainBrain InjuriesCardiacCause of DeathCerebrumCharacteristicsChemicalsChillsClinicalClinical TrialsComplexDevicesDropsEarly treatmentElectric CountershockEmergency medical serviceExhibitsFamily suidaeFeedbackGrantHealthcare SystemsHeartHeart ArrestHeat LossesHeatingHemorrhageHospitalsHumanHuman ResourcesHuman VolunteersHumidityHypotensionIceIncentivesInfusion proceduresInjuryInterventionLiquid substanceMagnetic Resonance ImagingMedicalMethodsModelingMonitorMucous body substanceMyocardial InfarctionNasal turbinate bone structureNervous System PhysiologyNeurologicNeurological outcomeNoseOutcomePatientsPhasePhysiologicalPhysiological ProcessesProcessProductionProgram DevelopmentRandomized Clinical TrialsRecoveryRegulationRelative (related person)ResuscitationSafetySalineShiveringStagingStructure of mucous membrane of noseSurfaceSurvival RateSystemTechniquesTemperatureTestingTherapeuticThermographyUpper respiratory tractWaterWorkbaseconditioningeconomic valueefficacy testingevaporationhealthy volunteerheat exchangerhuman studyhuman subjectimprovedinduced hypothermianatural hypothermianovelnovel strategiespressureprogramsprototyperesponsesafety testingvaporvasoconstriction
项目摘要
DESCRIPTION (provided by applicant): This project will introduce a completely new approach for inducing mild hypothermia and cerebral cooling. Therapeutic Hypothermia (TH) has previously been shown to improve patient survival and neurological outcomes, but it has only been adopted by a small fraction of medical healthcare systems. The lack of adoption has, in part, been due to poor implementation methods that are either impractical, ineffective, or they interfere with EMS resuscitation efforts. This project will test and demonstrate a novel trans-nasal evaporative cooling device that solves these issues, which will facilitate a broader level of
adoption and use of the therapy. Current induction techniques rely on some form of active cooling, whether by ice packs, cold saline or evaporative fluids. Our approach is novel in that we are harnessing a physiologic process that triggers the body to cool itself. There are no active cooling systems or evaporative chemicals. Our cooling method uses only dry, ambient air. The upper respiratory tract is very efficient at conditioning inspired air (prior to arrival at the luns), i.e., it can humidify dry air to full saturation very quickly. This humidifying process requires energy to convert water in the body to a vapor that is then mixed with the incoming dry air. Our cooling approach uses this physiological response to achieve the desired hypothermia. We force dry air through the nasal track and then extract the moisturized air, which effectively pulls
energy and heat out of the body. This project will be completed in several sequential stages. In Phase I, we will build on our preliminary studies with pigs to optimize the cooling process variables, looking at a range of air flows and temperature. We will also develop a simple prototype device to deliver the therapy and to confirm the safety of the method. In Phase II, we will develop a clinical-grade device and perform additional pig studies to confirm that the induced hypothermia is safe, effective and is associated with improved outcome of resuscitation and short term neurologic function. We will end Phase II with a small human study to evaluate the safety, tolerability and efficacy of the process in humans. This work will validate a new method for inducing hypothermia that can be easily deployed during treatment of out-of-hospital cardiac arrest, as well as other ischemic injuries to the brain and the heart. We plan to continue our development program into larger clinical trials (post Phase II) to assess clinical benefits associated with introducing this therapy early after ROSC. Ultimately, we plan to leverage this grant program into the creation of a new product and therapy model that will have significant clinical and economic value.
描述(申请人提供):该项目将引入一种全新的方法来诱导亚低温和脑降温。治疗性低温(TH)以前被证明可以改善患者的存活率和神经预后,但它只被一小部分医疗保健系统采用。缺乏采用的部分原因是实施方法不佳,要么不切实际,要么无效,要么干扰了EMS的复苏努力。该项目将测试和演示一种新型的跨鼻蒸发冷却装置,它将解决这些问题,这将促进更广泛的
采用和使用该疗法。目前的诱导技术依赖于某种形式的主动冷却,无论是通过冰袋、冷盐水还是蒸发液体。我们的方法是新颖的,因为我们正在利用一个生理过程,触发身体自我降温。没有活动的冷却系统或蒸发的化学物质。我们的降温方法只使用干燥的环境空气。上呼吸道在调节吸入空气方面非常有效(在到达LUNs之前),即它可以非常快地将干燥空气加湿到完全饱和。这种加湿过程需要能量来将体内的水转化为蒸汽,然后蒸汽与进入的干燥空气混合。我们的降温方法利用这种生理反应来实现所需的低温。我们迫使干燥的空气通过鼻道,然后吸出潮湿的空气,这有效地拉动
能量和热量排出体外。该项目将分几个连续阶段完成。在第一阶段,我们将在我们对猪的初步研究的基础上,优化冷却过程变量,观察一系列气流和温度。我们还将开发一个简单的原型设备来提供治疗并确认该方法的安全性。在第二阶段,我们将开发一种临床级设备,并进行更多的猪实验,以确认诱导低温是安全、有效的,并与改善复苏结果和短期神经功能有关。我们将以一项小型人体研究来结束第二阶段,以评估该过程在人类身上的安全性、耐受性和有效性。这项工作将验证一种新的诱导低温的方法,这种方法可以很容易地在院外心脏骤停以及其他脑和心脏缺血性损伤的治疗中部署。我们计划继续我们的开发计划,进入更大的临床试验(第二阶段后),以评估在ROSC后早期引入这种疗法的临床益处。最终,我们计划利用这一赠款计划创建一种新的产品和治疗模式,将具有重大的临床和经济价值。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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BENJAMIN R LANE的其他文献
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$ 56.39万 - 项目类别:
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