Vasodepressor syncope. 1993

R Sutton
Westminster and Chelsea Hospital, London, UK.

Disorders of the autonomic nervous control mechanisms of heart rate and vascular tone may cause syncope. Notably these are carotid sinus and vasovagal syndromes. Knowledge of their aetiology is limited. Each presents cardioinhibition and vasodepression. Pacing offers benefit in cardioinhibition and the mode required is usually dual chamber (DDI) with rate hysteresis. Pacing is unable to control vasodepression. A wide variety of drugs has been proposed to combat the vasodepressor components of these syndromes but none is wholly successful.

UI MeSH Term Description Entries
D009131 Muscle, Smooth, Vascular The nonstriated involuntary muscle tissue of blood vessels. Vascular Smooth Muscle,Muscle, Vascular Smooth,Muscles, Vascular Smooth,Smooth Muscle, Vascular,Smooth Muscles, Vascular,Vascular Smooth Muscles
D002346 Carotid Sinus The dilated portion of the common carotid artery at its bifurcation into external and internal carotids. It contains baroreceptors which, when stimulated, cause slowing of the heart, vasodilatation, and a fall in blood pressure. Sinus, Carotid
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D006321 Heart The hollow, muscular organ that maintains the circulation of the blood. Hearts
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001341 Autonomic Nervous System The ENTERIC NERVOUS SYSTEM; PARASYMPATHETIC NERVOUS SYSTEM; and SYMPATHETIC NERVOUS SYSTEM 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. Vegetative Nervous System,Visceral Nervous System,Autonomic Nervous Systems,Nervous System, Autonomic,Nervous System, Vegetative,Nervous System, Visceral,Nervous Systems, Autonomic,Nervous Systems, Vegetative,Nervous Systems, Visceral,System, Autonomic Nervous,System, Vegetative Nervous,System, Visceral Nervous,Systems, Autonomic Nervous,Systems, Vegetative Nervous,Systems, Visceral Nervous,Vegetative Nervous Systems,Visceral Nervous Systems
D013575 Syncope A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9) Drop Attack,Fainting,Presyncope,Syncope, Postural,Syncopal Episode,Syncopal Vertigo,Syncope, Cardiogenic,Syncope, Carotid Sinus,Syncope, Convulsive,Syncope, Deglutitional,Syncope, Effort,Syncope, Hyperventilation,Syncope, Micturition,Syncope, Situational,Syncope, Stokes-Adams,Syncope, Tussive,Attack, Drop,Cardiogenic Syncope,Cardiogenic Syncopes,Carotid Sinus Syncope,Carotid Sinus Syncopes,Convulsive Syncope,Convulsive Syncopes,Deglutitional Syncope,Deglutitional Syncopes,Drop Attacks,Effort Syncope,Effort Syncopes,Episode, Syncopal,Hyperventilation Syncope,Hyperventilation Syncopes,Micturition Syncope,Micturition Syncopes,Postural Syncope,Postural Syncopes,Presyncopes,Situational Syncope,Situational Syncopes,Stokes-Adams Syncope,Stokes-Adams Syncopes,Syncopal Episodes,Syncope, Stokes Adams,Syncopes,Syncopes, Cardiogenic,Syncopes, Carotid Sinus,Syncopes, Convulsive,Syncopes, Deglutitional,Syncopes, Effort,Syncopes, Hyperventilation,Syncopes, Micturition,Syncopes, Postural,Syncopes, Situational,Syncopes, Stokes-Adams,Syncopes, Tussive,Tussive Syncope,Tussive Syncopes,Vertigo, Syncopal,Vertigos, Syncopal
D013577 Syndrome A characteristic symptom complex. Symptom Cluster,Cluster, Symptom,Clusters, Symptom,Symptom Clusters,Syndromes
D014630 Vagus Nerve The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx). Cranial Nerve X,Pneumogastric Nerve,Tenth Cranial Nerve,Nerve X,Nervus Vagus,Cranial Nerve, Tenth,Cranial Nerves, Tenth,Nerve X, Cranial,Nerve Xs,Nerve, Pneumogastric,Nerve, Tenth Cranial,Nerve, Vagus,Nerves, Pneumogastric,Nerves, Tenth Cranial,Nerves, Vagus,Pneumogastric Nerves,Tenth Cranial Nerves,Vagus Nerves,Vagus, Nervus

Related Publications

R Sutton
January 1990, Journal (Canadian Dental Association),
R Sutton
August 2000, Current treatment options in cardiovascular medicine,
R Sutton
May 1998, The Journal of the Arkansas Medical Society,
R Sutton
May 1959, American heart journal,
R Sutton
September 1984, British medical journal (Clinical research ed.),
R Sutton
November 2000, Postgraduate medicine,
R Sutton
June 1994, British heart journal,
R Sutton
June 1985, Australian and New Zealand journal of medicine,
R Sutton
February 1999, Journal of perianesthesia nursing : official journal of the American Society of PeriAnesthesia Nurses,
R Sutton
May 1997, Cardiology clinics,
Copied contents to your clipboard!