Symptom: Syncope


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Syncope: Loss or interruption of consciousness.
Introduction: Syncope means loss of consciousness such as fainting. The term "dizziness" is often used for milder feelings of lightheadedness that often precede a fainting episode. The vague word "dizziness" needs to be distinguished from symptoms such as balance difficulty, vertigo, fainting, or general weakness. True dizziness is a lightheadedness or a sensation that you are about to faint. Any faintness or dizziness symptom needs prompt professional medical advice.
Detailed cause information for symptom: Syncope:
  • Possible causes of symptom: Syncope (33 conditions)
  • Medications or substances causing symptom: Syncope (4 listings)
  • Medical conditions causing symptom: Syncope (140 conditions)
  • Medical conditions causing complication: Syncope (50 conditions)

  • Disease information: see also Syncope condition information
  • Causes of Syncope (30 conditions)
    Medical articles on symptoms: These general medical articles may be of interest:

    Types of Syncope: fainting (91), dizziness (76), coma (32), collapse (7)
    Symptoms related to Syncope: unresponsiveness (7), shock (18), fainting (91), dizziness (76), coma (32), dementia (19), delirium (15)
    Symptoms: symptom center, symptom groups, symptom descriptions

    Possible causes of symptom: Syncope: The following medical conditions are some of the possible causes of Syncope as a symptom. There are likely to be other possible causes, so ask your doctor about your symptoms.

    Medications or substances causing Syncope: The following drugs, medications, substances or toxins are some of the possible causes of Syncope as a symptom. This list is incomplete and various other drugs or substances may cause your symptoms. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

    Conditions listing symptoms: Syncope: The following list of conditions have 'Syncope' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

    A

  • Acoustic Neurinoma ... dizziness
  • Acute Disseminated Encephalomyelitis ... coma
  • Addison's Disease ... coma, loss of consciousness, dizziness, collapse, fainting
  • Addisonian crisis ... loss of consciousness
  • African Sleeping sickness ... coma
  • Alcohol abuse ... coma
  • Alcoholism ... blackouts
  • Alternating Hemiplegia ... balance problems
  • Amnesic shellfish poisoning ... dizziness
  • Amphetamines ... dizziness, collapse
  • Anaphylaxis ... syncope, blackout, fainting
  • Anemia ... dizziness, unconsciousness
  • Anencephaly ... unconsciousness
  • Anoxia ... unconsciousness
  • Aortic valve disease ... dizziness, fainting
  • Asphyxia ... coma
  • Atrial Fibrillation ... faintness
  • Atrial flutter ... dizziness, fainting

    B

  • Balance disorders ... wooziness, dizziness
  • Barotitis Media ... dizziness
  • Brain cancer ... dizziness, balance problems
  • Brain compression ... coma

    C

  • Carbon monoxide poisoning ... dizziness
  • Cardiac arrest ... loss of consciousness, collapse
  • Catalepsy ... no response or recognition
  • Catatonia ... catalepsy
  • Cerebral Aneurysm ... loss of consciousness
  • Cerebral hemorrhage ... loss of consciousness
  • Charcot-Marie-Tooth Disorder ... balance problems
  • Chemical pneumonia ... dizziness
  • Chiari Malformation ... dizziness
  • Ciguatera poisoning ... dizziness
  • Coma ... total unconsciousness, coma
  • Concussion ... coma, dizziness, temporary loss of consciousness, unconsciousness
  • Convulsions ... loss of consciousness
  • Cor pulmonale ... fainting
  • Cyclic vomiting syndrome ... dizziness

    D

  • Decompression sickness ... dizziness, unconsciousness
  • Dehydration ... loss of consciousness
  • Diabetic hypoglycemia ... loss of consciousness, dizziness
  • Diabetic Ketoacidosis ... Coma
  • Diabetic neuropathy ... dizziness

    E

  • Ectopic pregnancy ... dizziness, collapse, fainting, fainting
  • Encephalitis ... coma, loss of consciousness
  • End-stage renal disease ... coma
  • Epiglotitis ... loss of consciousness
  • Epilepsy ... loss of consciousness

    F

  • Favism ... dizziness
  • Febrile Seizures ... loss of consciousness

    G

  • Generalized anxiety disorder ... lightheadedness

    H

  • Head injury ... syncope, loss of consciousness, concussion
  • Headache-free migraine ... dizziness
  • Hearing Impairment ... dizziness, balance problems
  • Heart attack ... loss of consciousness, fainting
  • Heart block ... blackouts (Stokes Adams syndrome), dizziness, fainting
  • Heart disease ... fainting
  • Heat exhaustion ... collapse
  • Heatstroke ... loss of consciousness, dizziness
  • Hemangioblastoma ... dizziness
  • Hepatitis ... coma, loss of consciousness
  • High altitude cerebral edema ... coma
  • HIV/AIDS ... coma
  • Hyperemesis Gravidarum ... dizziness
  • Hyperglycemic Hyperosmolar Nonketotic Syndrome ... Coma
  • Hyperparathyroidism ... coma
  • Hypertension ... dizziness
  • Hypertrophic cardiomyopathy ... fainting from exertion
  • Hyperventilation ... dizziness, faintness
  • Hypoglycemia ... loss of consciousness, dizziness
  • Hypoglycemic attack ... loss of consciousness, dizziness
  • Hypotension ... fainting

    J

  • Japanese encephalitis ... coma
  • Jaw conditions ... dizziness
  • Joubert Syndrome ... balance problems

    K

  • Kidney failure ... coma

    L

  • Labrynthitis ... balance problems, dizziness
  • Liver failure ... coma
  • Lupus ... dizziness
  • Lyme disease ... dizziness

    M

  • Malaria ... dizziness
  • Mastocytosis ... faintness
  • Melioidosis ... coma
  • Meningitis ... coma
  • Middle ear infection ... Balance problems
  • Mitral-valve prolapse ... dizziness
  • Monosodium glutamate (MSG) adverse reaction ... dizziness
  • Motion sickness ... dizziness
  • Mountain sickness ... coma, dizziness
  • Moyamoya Disease ... disturbed consciousness

    N

  • Narcolepsy ... cataplexy attacks
  • Neurofibromatosis-2 ... balance problems

    O

  • Olivopontocerebellar Atrophy ... feeling faint on standing up
  • Orthostatic hypotension ... syncope (temporary loss of consciousness), dizziness, fainting

    P

  • Panic attack ... fainting-like symptoms, Lightheadedness, dizziness
  • Panic disorder ... fainting-like symptoms, Lightheadedness, dizziness
  • Paralytic shellfish poisoning ... dizziness
  • Perilymph fistula ... balance problems
  • Petit mal seizures ... temporary lack of awareness
  • Pheochromocytoma ... fainting
  • Polycythemia ... dizziness
  • Post-traumatic stress disorder ... dizziness
  • Premenstrual syndrome ... dizziness
  • Primary pulmonary hypertension ... dizziness, fainting (syncope)
  • Progressive Multifocal Leukoencephalopathy ... coma
  • Progressive Supranuclear Palsy ... balance problems
  • Pulmonary embolism ... syncope, dizziness, collapse
  • Pulmonary hypertension ... fainting
  • Pulmonary valve stenosis ... fainting

    R

  • Rapid gastric emptying ... dizziness
  • Reye's Syndrome ... coma, loss of consciousness
  • Rift Valley Fever ... coma, dizziness
  • Rocky Mountain spotted fever ... coma

    S

  • Shaken Baby Syndrome ... loss of consciousness
  • Shock ... loss of consciousness
  • Sick sinus syndrome ... dizziness, fainting
  • Sinus node disease ... dizziness, fainting
  • Stokes Adams syndrome ... fainting, blackouts
  • Streptococcal Toxic Shock Syndrome ... coma
  • Stroke ... coma, loss of consciousness, dizziness, Fainting
  • Subarachnoid hemorrhage ... coma, dizziness, fainting, temporary loss of consciousness
  • Syncope ... fainting from laughing, dizziness, dizziness, loss of consciousness (syncope), lightheadedness (presyncope), fainting from coughing, fainting

    T

  • Tachycardia ... dizziness
  • Toxic Shock Syndrome ... Dizziness, fainting
  • Toxoplasmosis ... coma
  • Transient Ischemic Attack ... loss of consciousness, dizziness
  • Traumatic Brain Injury ... concussion
  • Type 1 diabetes ... coma

    U

  • Usher Syndrome ... Balance problems

    V

  • Variant CJD ... dizziness
  • Vascular neuropathy ... feeling faint on standing up
  • Vasovagal attack ... fainting
  • Ventricular fibrillation ... collapse
  • Vertigo ... balance problems
  • Vestibular neuronitis ... balance problems
  • Viral Hemorrhagic Fevers ... dizziness
  • Von Hippel-Lindau Disease ... balance problems, dizziness

    W

  • Wallenberg's Syndrome ... balance problems
  • Whiplash ... dizziness
  • Wolf-Parkinson-White syndrome ... dizziness, temporary syncope

    Y

  • Yellow fever ... coma
    Conditions listing complications: Syncope: The following list of conditions have 'Syncope' or similar listed as a complication in our database. The distinction between a symptom and complication is not always clear, and conditions mentioning this symptom as a complication may also be relevant. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

    A

  • Acoustic Neurinoma ... dizziness
  • Acute kidney failure ... unconsciousness
  • Acute Pancreatitis ... collapse
  • African Sleeping sickness ... coma
  • Alcoholism ... unconsciousness, blackouts
  • Amphetamines ... collapse
  • Anaphylaxis ... syncope, blackout
  • Angelman syndrome ... balance problems

    C

  • Chagas disease ... coma
  • Coma ... Persistent Vegetative State
  • Creutzfeldt-Jakob Disease ... coma
  • Cryptococcal Meningitis ... coma

    D

  • Dehydration ... loss of consciousness
  • Diabetes ... Balance problems
  • Dysmenorrhea ... fainting

    E

  • Eclampsia ... coma
  • Ectopic pregnancy ... collapse
  • Ehrlichiosis ... coma
  • End-stage renal disease ... coma
  • Epiglotitis ... loss of consciousness

    H

  • Head injury ... concussion
  • Heat cramps ... collapse
  • Heat exhaustion ... collapse
  • Heatstroke ... coma, unconsciousness
  • High altitude cerebral edema ... coma
  • Hyperparathyroidism ... coma
  • Hypoglycemia ... coma
  • Hypoglycemic attack ... coma
  • Hypothermia ... coma, loss of consciousness

    J

  • Japanese encephalitis ... coma

    K

  • Kidney failure ... coma

    L

  • Lead poisoning ... coma, unconsciousness

    M

  • Mountain sickness ... coma

    N

  • Neurofibromatosis-2 ... Balance problems

    P

  • Pelvic Inflammatory Disease ... collapse
  • Peritonitis ... collapse
  • Pneumothorax ... collapse
  • Pulmonary embolism ... coma, collapse

    R

  • Relapsing fever ... collapse
  • Reye's Syndrome ... coma
  • Rocky Mountain spotted fever ... coma

    S

  • Shock ... coma, loss of consciousness
  • Stroke ... coma, balance problems, Dizziness

    T

  • Traumatic Brain Injury ... coma, concussion
  • Type 1 diabetes ... Balance problems
  • Type 2 diabetes ... Balance problems
  • Typhoid fever ... coma

    U

  • Uremia ... coma

    V

  • Viral Hemorrhagic Fevers ... coma

    Y

  • Yellow fever ... coma

    Related medical articles for Syncope:
  • Introduction: Syncope
  • Basic Summary for Syncope
  • Causes of Syncope
  • Symptoms of Syncope
  • Treatments for Syncope


    Last revised: Nov 10, 2003

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