Jove
Visualize
Contact Us

Related Concept Videos

Sympathetic Activation01:16

Sympathetic Activation

6.6K
The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
6.6K
Adrenergic Agonists: Therapeutic Uses01:30

Adrenergic Agonists: Therapeutic Uses

1.7K
Adrenergic agonists have diverse therapeutic uses across various medical conditions and emergencies.
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and...
1.7K
Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla01:27

Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla

2.5K
The sympathetic pathways of the collateral ganglia and adrenal medulla serve unique but interconnected roles in the sympathetic response.
Collateral Ganglia
Sympathetic preganglionic axons reach the collateral ganglia along the route of splanchnic nerves. These nerves bypass the sympathetic trunk and communicate with sympathetic postganglionic neurons housed in the prevertebral ganglia. These ganglia supply the organs of the abdominopelvic cavity.
The greater splanchnic nerve, formed by the...
2.5K
Autonomic Nervous System01:22

Autonomic Nervous System

12.2K
The autonomic nervous system (ANS) is a critical component of the peripheral nervous system, primarily responsible for regulating involuntary bodily functions and maintaining homeostasis. It functions in tandem with the central nervous system (CNS) to seamlessly coordinate various physiological processes without the need for conscious control.
The ANS comprises two main divisions: the sympathetic and parasympathetic divisions. These divisions function antagonistically to maintain a dynamic...
12.2K
The Sympathetic Nervous System01:25

The Sympathetic Nervous System

102.8K
Overview
102.8K
Treatment Strategies for Psychological Disorders01:24

Treatment Strategies for Psychological Disorders

726
Treatment approaches for psychological disorders fall into three main categories: psychological, biological, and sociocultural. Each approach targets different aspects of mental health, requiring varying levels of education and training.
Psychological therapies focus on modifying emotions, thoughts, and behaviors through talking, interpreting, listening, rewarding, challenging, and modeling. Clinical psychologists, counselors, and social workers commonly practice psychotherapy. Clinical...
726

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Pre-Transplant Serum FTIRS Signatures as Predictive Biomarkers of Early Transient Pancreatic Graft Dysfunction in Simultaneous Pancreas-Kidney Transplantation.

Life (Basel, Switzerland)·2026
Same author

Exploring senior nursing students' perspectives on humanizing care for patients in isolation: a qualitative study.

Frontiers in medicine·2026
Same author

Coexisting Optic Pathway and Posterior Fossa Gliomas in an Adult With Previously Undiagnosed Neurofibromatosis Type 1.

Cureus·2026
Same author

Management of Severe Leptospirosis in the Intensive Care Unit: A Case Report and Review of Diagnostic and Therapeutic Challenges.

Cureus·2025
Same author

Assessing the Impact: The Damage Index for Antiphospholipid Syndrome in the Context of Other Autoimmune Diseases and Cardiovascular Risk Factors.

Cureus·2025
Same author

Systemic Air Embolism Leading to Cardiorespiratory Arrest Following a CT-Guided Biopsy: A Case Report.

Cureus·2025
Same journal

[Allergy to Αlpha-1 Adrenergic Agonists in Different Formulations: A Case Report].

Acta medica portuguesa·2026
Same journal

[Presence of Dermatologists on Social Media: Perception of the Portuguese Population].

Acta medica portuguesa·2026
Same journal

[Sexual Health in Oncology Patients and Cancer Survivors: A Structured Protocol to Address an Unmet Clinical Need at IPO-Porto].

Acta medica portuguesa·2026
Same journal

Hyperthermia in a Teenager: Is it Just a Heat Stroke?

Acta medica portuguesa·2026
Same journal

Cutaneous Polyarteritis Nodosa as the Inaugural Manifestation of Hairy Cell Leukemia.

Acta medica portuguesa·2026
Same journal

Alopecia Neoplastica from Breast Carcinoma: When Hair Loss Hides Something Else.

Acta medica portuguesa·2026
See all related articles
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jan 16, 2026

Measuring Cardiac Autonomic Nervous System ANS Activity in Toddlers - Resting and Developmental Challenges
08:22

Measuring Cardiac Autonomic Nervous System ANS Activity in Toddlers - Resting and Developmental Challenges

Published on: February 25, 2016

15.9K

Paroxysmal Sympathetic Hyperactivity: A Structured Approach for Clinical Practice.

Rita Dos Santos Almeida1, João Faia2, Bárbara Quental1

  • 1Intensive Care Service. Unidade Local de Saúde de Viseu Dão Lafões. Viseu. Portugal.

Acta Medica Portuguesa
|January 15, 2026
PubMed
Summary
This summary is machine-generated.

Paroxysmal sympathetic hyperactivity (PSH) is a neurological disorder following brain injury, causing sudden sympathetic overactivity. Current management is varied, highlighting the need for standardized diagnostic and treatment guidelines.

Keywords:
Autonomic Nervous System Diseases/diagnosisAutonomic Nervous System Diseases/epidemiologyAutonomic Nervous System Diseases/etiologyAutonomic Nervous System Diseases/therapyBrain InjuriesSympathetic Nervous System/physiopathologyTraumatic/complications

More Related Videos

The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
05:48

The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients

Published on: June 12, 2020

6.3K
Protocol for Repetitive Transcranial Magnetic Stimulation with Symptom Provocation to Treat Obsessive-compulsive Disorder
11:11

Protocol for Repetitive Transcranial Magnetic Stimulation with Symptom Provocation to Treat Obsessive-compulsive Disorder

Published on: November 25, 2025

254

Related Experiment Videos

Last Updated: Jan 16, 2026

Measuring Cardiac Autonomic Nervous System ANS Activity in Toddlers - Resting and Developmental Challenges
08:22

Measuring Cardiac Autonomic Nervous System ANS Activity in Toddlers - Resting and Developmental Challenges

Published on: February 25, 2016

15.9K
The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
05:48

The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients

Published on: June 12, 2020

6.3K
Protocol for Repetitive Transcranial Magnetic Stimulation with Symptom Provocation to Treat Obsessive-compulsive Disorder
11:11

Protocol for Repetitive Transcranial Magnetic Stimulation with Symptom Provocation to Treat Obsessive-compulsive Disorder

Published on: November 25, 2025

254

Area of Science:

  • Neurology
  • Neuroscience

Background:

  • Paroxysmal sympathetic hyperactivity (PSH) is a neurological syndrome characterized by sudden episodes of sympathetic overactivity.
  • It often occurs after severe brain injury, affecting diencephalic and brainstem structures.
  • The pathophysiology involves a suspected imbalance in central nervous system pathways.

Purpose of the Study:

  • To review the current understanding of paroxysmal sympathetic hyperactivity.
  • To discuss diagnostic approaches and management strategies.
  • To emphasize the need for further research and standardized guidelines.

Main Methods:

  • Clinical diagnosis based on exclusion of other causes.
  • Utilizes the Paroxysmal Sympathetic Hyperactivity Assessment Measure.
  • Reviews existing pharmacological and non-pharmacological management strategies.

Main Results:

  • PSH is triggered by non-noxious stimuli in patients with severe brain injury.
  • Diagnosis is clinical, supported by specific assessment tools.
  • Management strategies are currently heterogeneous.

Conclusions:

  • Further research is essential to elucidate PSH mechanisms.
  • Standardized, evidence-based diagnostic and treatment guidelines are needed.
  • Improved outcomes depend on developing clearer clinical approaches.