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Ischemic Stroke ll: Pathophysiology

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An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...

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Updated: Jun 22, 2026

Remote Limb Ischemic Preconditioning: A Neuroprotective Technique in Rodents

Remote Limb Ischemic Preconditioning: A Neuroprotective Technique in Rodents

Published on: June 2, 2015

Remote Ischemic Preconditioning in the PICU: A Simple Concept With a Complex Past.

Dana Y Fuhrman¹, John A Kellum

¹All authors: Department of Critical Care Medicine, University of Pittsburgh, School of Medicine, Pittsburgh, PA.

Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

|July 1, 2016

Summary

Remote ischemic preconditioning shows promise for organ protection but faces challenges in pediatric critical care. Further research and standardized protocols are needed for its clinical application in children.

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Area of Science:

Cardiology
Critical Care Medicine
Physiology

Background:

Remote ischemic preconditioning (RIPC) is a protective phenomenon where brief ischemia in one organ confers resistance to a distant organ against subsequent ischemic injury.
Despite over two decades of research, RIPC is not routinely used in pediatric critical care, necessitating a review of its mechanisms, clinical applications, and barriers to adoption.

Purpose of the Study:

To review recent mechanisms of RIPC.
To summarize clinical studies on RIPC over the past decade, focusing on pediatric critical care.
To identify reasons for the limited clinical use of RIPC in pediatric patients and discuss future research directions.

Main Methods:

A systematic literature search was conducted using PubMed with terms 'ischemic preconditioning' and 'remote preconditioning'.
Included were randomized controlled trials from 2006 to the present that utilized a blood pressure cuff for RIPC induction.
Reference lists of identified articles were reviewed, and all studies involving pediatric patients were included.

Main Results:

Varied study outcomes regarding RIPC's organ-protective effects have been reported, potentially hindering clinical translation.
The lack of standardized protocols and clearly defined patient risk groups may contribute to inconsistent findings.

Conclusions:

Differences in study outcomes and methodology have limited the routine clinical application of RIPC in pediatric critical care.
Future research should focus on protocolizing RIPC in large multicenter trials, utilizing biomarkers, and clearly delineating patient risk groups to establish safety and efficacy in critically ill children.