Non-invasive Modulation of Autonomic Cardiac Nervous System

2019-08-20 20:17:12 | BioPortfolio


To demonstrate the effect of non invasive vagus nerve (VNS) stimulation on heart rate variability and MSNA signal.


First part: Assessment of the muscle sympathetic nerve activity (MSNA) at baseline using microneurography performed on the superficial peroneal nerve.

Second part: Acquisition of the MSNA signal during non-invasive VNS and apnea. Non-invasive VNS is performed using several frequencies of stimulation. Maximal and voluntaries apnea are performed at the end of the expiration.

Continuous recording of the following parameters:

- non-invasive arterial blood pressure

- R-R interval

- electrocardiogram

- MSNA activity

- respiratory curve signal

- respiratory rate, oxygen saturation

Study Design


Autonomic Nervous System


Modulation of muscle sympathetic nerve activity


Erasme University Hospital




Université Catholique de Louvain

Results (where available)

View Results


Published on BioPortfolio: 2019-08-20T20:17:12-0400

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Medical and Biotech [MESH] Definitions

The enteric, parasympathetic, and sympathetic nervous systems taken together. Generally speaking, the autonomic nervous system regulates the internal environment during both peaceful activity and physical or emotional stress. Autonomic activity is controlled and integrated by the central nervous system, especially the hypothalamus and the solitary nucleus, which receive information relayed from VISCERAL AFFERENTS; these and related central and sensory structures are sometimes (but not here) considered to be part of the autonomic nervous system itself.

The thoracolumbar division of the autonomic nervous system. Sympathetic preganglionic fibers originate in neurons of the intermediolateral column of the spinal cord and project to the paravertebral and prevertebral ganglia, which in turn project to target organs. The sympathetic nervous system mediates the body's response to stressful situations, i.e., the fight or flight reactions. It often acts reciprocally to the parasympathetic system.

Diseases of the parasympathetic or sympathetic divisions of the AUTONOMIC NERVOUS SYSTEM; which has components located in the CENTRAL NERVOUS SYSTEM and PERIPHERAL NERVOUS SYSTEM. Autonomic dysfunction may be associated with HYPOTHALAMIC DISEASES; BRAIN STEM disorders; SPINAL CORD DISEASES; and PERIPHERAL NERVOUS SYSTEM DISEASES. Manifestations include impairments of vegetative functions including the maintenance of BLOOD PRESSURE; HEART RATE; pupil function; SWEATING; REPRODUCTIVE AND URINARY PHYSIOLOGY; and DIGESTION.

The nervous system outside of the brain and spinal cord. The peripheral nervous system has autonomic and somatic divisions. The autonomic nervous system includes the enteric, parasympathetic, and sympathetic subdivisions. The somatic nervous system includes the cranial and spinal nerves and their ganglia and the peripheral sensory receptors.

The craniosacral division of the autonomic nervous system. The cell bodies of the parasympathetic preganglionic fibers are in brain stem nuclei and in the sacral spinal cord. They synapse in cranial autonomic ganglia or in terminal ganglia near target organs. The parasympathetic nervous system generally acts to conserve resources and restore homeostasis, often with effects reciprocal to the sympathetic nervous system.

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