Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Provoking vasodepressor syncope with head-up tilt-table testing.

Progress in Cardiovascular Nursing

|July 1, 1992

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

Factors associated with outcomes 3 months after implantable cardioverter defibrillator insertion.

Heart & lung : the journal of critical care·1999

Same author

Factors affecting the electronic communication of radiological information to an intensive-care unit.

Journal of telemedicine and telecare·1996

Same author

Internal cardioverter defibrillator device discharge: experiences of patients and family members.

Heart & lung : the journal of critical care·1993

Same author

Using a structured cardiopulmonary resuscitation flow sheet.

Focus on critical care·1990

Same author

Advances in the treatment of dilated cardiomyopathy.

AACN clinical issues in critical care nursing·1990

Same author

[Cardiomyopathy. An analysis of the problem].

Servir (Lisbon, Portugal)·1989

Same journal

What is the significance of T-wave inversion in the precordial leads?

Progress in cardiovascular nursing·2009

Same journal

Sepsis and cardiac disease: improving outcomes through recognition and management.

Progress in cardiovascular nursing·2009

Same journal

Hypertension in Thailand.

Progress in cardiovascular nursing·2009

Same journal

Nutrigenomics in cardiovascular disease: implications for the future.

Progress in cardiovascular nursing·2009

Same journal

Lipoprotein-associated phospholipase A(2): a promising vascular-specific marker for screening cardiovascular risk?

Progress in cardiovascular nursing·2009

Same journal

Cardiac support devices.

Progress in cardiovascular nursing·2009

See all related articles

Head-up tilt testing effectively identifies vasodepressor syncope (VDS), a condition of fainting due to autonomic imbalance. This diagnostic tool helps determine the dominant mechanism causing hypotension, guiding treatment strategies for VDS patients.

Area of Science:

Cardiology
Autonomic Nervous System Research
Diagnostic Medicine

Background:

Vasodepressor syncope (VDS) involves transient loss of consciousness due to hypotension from autonomic imbalance, often triggered by reduced venous return.
Parasympathetic overactivity leads to vasodilation, while sympathetic responses aim to compensate for decreased blood flow.

Observation:

Head-up tilt testing passively reduces venous return in a controlled setting, simulating VDS triggers.
Continuous monitoring of blood pressure and ECG during tilt allows differentiation between sympathetic and parasympathetic responses.

Findings:

The tilt study identifies the dominant autonomic mechanism (sympathetic vasoconstriction or parasympathetic reflex) responsible for hypotension during VDS.
Bradycardia and ventricular standstill are potential outcomes of parasympathetic domination observed during testing.

Related Experiment Videos

Implications:

Tilt testing guides therapeutic interventions for VDS, including volume expansion, medications to manage autonomic imbalance, or dual-chamber pacing for severe bradycardia.
Understanding the specific VDS mechanism enhances personalized treatment approaches and improves patient outcomes.