Related Experiment Video
Updated: Mar 22, 2026
08:31
In Vivo Telemetry to Record Long-Term Cardiovascular Parameters, Temperature, and Activity in Spinal Cord Injury Rat Models
Published on: January 2, 2026
308
Cardiovascular dysfunction following spinal cord injury
Elizabeth Partida1, Eugene Mironets1, Shaoping Hou1
1Spinal Cord Research Center, Department of Neurobiology & Anatomy, Drexel University College of Medicine, Philadelphia, PA, USA.
Neural Regeneration Research
|April 14, 2016
Summary
Spinal cord injury (SCI) disrupts autonomic functions, leading to hypotension and dangerous autonomic dysreflexia (AD). Understanding the underlying neuropathophysiology is key to developing new therapies for cardiovascular dysfunction after SCI.
Area of Science:
- Neuroscience
- Cardiovascular Physiology
- Autonomic Nervous System
Background:
- Spinal cord injury (SCI) frequently causes sensorimotor and autonomic dysfunction.
- High thoracic or cervical SCI disrupts supraspinal vasomotor pathways, leading to hemodynamic instability due to deregulated sympathetic outflow.
- This results in hypotension, cardiac dysrhythmias, and hypothermia, progressing to orthostatic hypotension and autonomic dysreflexia (AD) in chronic phases.
Purpose of the Study:
- To explore the neuropathophysiology of cardiovascular dysfunction following spinal cord injury.
- To identify mechanisms contributing to autonomic dysreflexia (AD) for developing novel therapeutic strategies.
- To enhance understanding for restoring hemodynamic performance post-SCI.
Main Methods:
- Review of existing literature on SCI and cardiovascular autonomic dysfunction.
- Analysis of the impact of supraspinal pathway interruption on sympathetic outflow.
- Examination of central nervous system (CNS) and vascular changes in chronic SCI.
Main Results:
- SCI-induced disruption of vasomotor pathways leads to disordered hemodynamics.
- Reduced sympathetic activity causes hypotension, arrhythmias, and hypothermia.
- Chronic SCI involves CNS and vascular changes, resulting in orthostatic hypotension and severe autonomic dysreflexia (AD).
Conclusions:
- Current treatments for AD are palliative, focusing on managing hypertensive spikes.
- Mitigating AD requires addressing underlying mechanisms, including intraspinal circuit reorganization.
- A deeper understanding of SCI's neuropathophysiology is crucial for developing effective therapeutic approaches to restore hemodynamic control.
Keywords:
autonomic dysreflexiabladder distensionblood pressurebradycardiaheart ratehypertensionplasticityrelayspinal cord lesionsproutingsympathetic activityMore Related Videos
Related Concept Videos
01:26Spinal Cord
2.7K
The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.
2.7K
01:21Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
638
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
638
01:27Assessment of the Cardiovascular System III: Palpation
1.5K
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
1.5K
01:23Peripheral Artery Disease V: Postoperative Nursing Management
558
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
558
01:18Disorders of the Autonomic Nervous System
1.9K
The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's...
Raynaud's disease, also known as Raynaud's...
1.9K
01:26Cardiac Catheterization IV: Nursing Management
1.0K
Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
1.0K