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Traumatic Brain Injury l: Introduction

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...

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Updated: May 10, 2026

Development of an Algorithm to Perform a Comprehensive Study of Autonomic Dysreflexia in Animals with High Spinal Cord Injury Using a Telemetry Device

Development of an Algorithm to Perform a Comprehensive Study of Autonomic Dysreflexia in Animals with High Spinal Cord Injury Using a Telemetry Device

Published on: July 29, 2016

Data analysis protocol for early autonomic dysfunction characterization after severe traumatic brain injury.

Kejun Dong¹, Vijay Krishnamoorthy^2,3, Monica S Vavilala⁴

¹Center for Data Science, Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, United States.

Frontiers in Neurology

|January 8, 2025

Summary

This summary is machine-generated.

Severe traumatic brain injury (sTBI) can cause autonomic nervous system (ANS) dysfunction. This study characterizes early ANS dysfunction using cardiac waveforms to improve patient outcomes after sTBI.

Keywords:

arterial blood pressure (ABP)early autonomic dysfunction (eAD)electrocardiogram (ECG)physiological waveform severe traumatic brain injury (sTBI)

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Last Updated: May 10, 2026

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Systems Analysis of the Neuroinflammatory and Hemodynamic Response to Traumatic Brain Injury

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Published on: May 27, 2022

Area of Science:

Neuroscience
Cardiovascular Physiology
Critical Care Medicine

Background:

Severe traumatic brain injury (sTBI) leads to significant mortality and disability, often involving prolonged multi-organ dysfunction.
Autonomic nervous system (ANS) dysfunction following sTBI can precipitate cardiovascular dysregulation and increase mortality.
Current understanding of early ANS dysfunction in the acute phase of sTBI is limited.

Purpose of the Study:

To characterize early autonomic dysfunction in patients with sTBI using physiological waveform data.
To investigate the association between early autonomic dysfunction and clinical outcomes after sTBI.
To inform strategies for preventing multi-organ dysfunction and improving patient outcomes in sTBI.

Main Methods:

Collected continuous cardiac waveform data (ECG, ABP) from sTBI patients in an ICU setting.
Assessed ECG and ABP signal quality using established metrics and deep learning models.
Computed ANS function indices including heart rate turbulence, heart rate variability, pulse rate variability, and baroreflex sensitivity.

Main Results:

Established a protocol for analyzing cardiac waveform data to assess ANS function post-sTBI.
Quantified early autonomic dysfunction by comparing calculated indices against normal ranges.
Provided a detailed characterization of acute ANS function changes after sTBI.

Conclusions:

This study offers a comprehensive characterization of acute ANS dysfunction following sTBI.
The findings enhance the understanding of the development and trajectory of early autonomic dysfunction (eAD) post-sTBI.
The methodology provides a foundation for future research and clinical monitoring of sTBI patients.