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Symptom: Syncope



Introduction: Syncope

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.

» Review Causes of Syncope: full list

Causes of Syncope:

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

See full list of 787 causes of Syncope

» Review Causes of Syncope: full list

Causes of Types of Syncope:

Review the causes of these more specific types of Syncope:

See full list of 23 types for Syncope

Syncope: Multiple Symptom Checker

Listed below are some combinations of symptoms associated with Syncope, as listed in our database. Visit the Multiple Symptoms Checker, to add and remove symptoms and research your condition.

Multiple Symptom Checker - Other Symptoms

Multiple Symptom Checker Combinations

See full list of 2667 Multiple Symptom Checker combinations related to Syncope

Causes of Similar Symptoms to Syncope

Research the causes of these symptoms that are similar to, or related to, the symptom Syncope:

Diagnostic Guides for Syncope

Medical Books Excerpts Read excertps from published book sections related to Syncope from the following published medical books for more detailed information about Syncope. Free access (no registration): read all online diagnostic book sections about Syncope

Medical Books Excerpts
  • "In a Page: Signs and Symptoms"
  • "In a Page: Signs and Symptoms"
  • "In a Page: Signs and Symptoms"
  • "In a Page: Signs and Symptoms"
  • "In A Page: Pediatric Signs and Symptoms"
  • "In A Page: Pediatric Signs and Symptoms"
  • "In A Page: Pediatric Signs and Symptoms"
  • "Differential Diagnosis in Primary Care"
  • "Differential Diagnosis in Primary Care"
  • "Differential Diagnosis in Primary Care"
  • "Differential Diagnosis in Primary Care"
  • "Handbook of Signs & Symptoms (Third Edition)"
  • "Handbook of Signs & Symptoms (Third Edition)"
  • "Handbook of Signs & Symptoms (Third Edition)"
  • "Handbook of Signs & Symptoms (Third Edition)"
  • "A Pocket Manual of Differential Diagnosis"
  • "A Pocket Manual of Differential Diagnosis"
  • "A Pocket Manual of Differential Diagnosis"
  • "Professional Guide to Signs & Symptoms (Fifth Edition)"
  • "Professional Guide to Signs & Symptoms (Fifth Edition)"
  • "Professional Guide to Signs & Symptoms (Fifth Edition)"
  • "Professional Guide to Signs & Symptoms (Fifth Edition)"
  • "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter"
  • "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter"
  • "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter"
  • "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter"
  • "Field Guide to Bedside Diagnosis"
  • "Field Guide to Bedside Diagnosis"
  • "Field Guide to Bedside Diagnosis"
  • "Field Guide to Bedside Diagnosis"
  • "Alarming Signs and Symptoms: Lippincott Manual of Nursing Practice Series"
  • "Alarming Signs and Symptoms: Lippincott Manual of Nursing Practice Series"
  • "Alarming Signs and Symptoms: Lippincott Manual of Nursing Practice Series"
  • "Signs & Symptoms: A 2-in-1 Reference for Nurses"
  • "Signs & Symptoms: A 2-in-1 Reference for Nurses"
  • "Signs & Symptoms: A 2-in-1 Reference for Nurses"
  • "Signs & Symptoms: A 2-in-1 Reference for Nurses"
  • "The Diagnostic Approach to Symptoms and Signs in Pediatrics"
  • "The Diagnostic Approach to Symptoms and Signs in Pediatrics"
  • "Nursing: Interpreting Signs and Symptoms"
  • "Nursing: Interpreting Signs and Symptoms"
  • "Nursing: Interpreting Signs and Symptoms"
  • "Nursing: Interpreting Signs and Symptoms"

Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.

Misdiagnosis and Syncope

Mild traumatic brain injury often remains undiagnosed: Although the symptoms of severe brain injury are hard to miss, it is less clear for milder...read more »

MTBI misdiagnosed as balance problem: When a person has symptoms such as vertigo or dizziness, a diagnosis of brain injury may go overlooked. This is particularly true of mild traumatic brain injury (MTBI), for which the symptoms are...read more »

Post-concussive brain injury often misdiagnosed: A study found that soldiers who had suffered a concussive injury in battle often were misdiagnosed on their return. A variety of...read more »

Vitamin B12 deficiency under-diagnosed: The condition of Vitamin B12 deficiency is a possible misdiagnosis of various conditions, such as multiple sclerosis (see symptoms of multiple...read more »

Immediate care in extradural haematoma: Extradural haematoma is a surgical emergency because it can lead to death if the clot is not removed promptly. It usually occurs...read more »

Rapid heart rate in Wolf Parkinson White syndrome: Wolf Parkinson White syndrome can present with anything form mild chest discomfort or palpitations to severe cardiopulmonary...read more »

Aortic stenosis in the elderly: Aortic stenosis is a condition characterised by the calcification of a normal valve and is more common in the elderly population. This is the most common cause.the patient usually presents with angina, syncope and...read more »

Read more about Misdiagnosis and Syncope

Stories from Users for Syncope

Real-life user stories relating to Syncope:

Symptom specific forums: The following patient stories in our interactive forums and message boards relate to Syncope or relevant symptoms:

Videos for Syncope

Epilepsy Made Better

Epilepsy Made BetterNew devices may help some epilepsy patients who are not seizure-free after taking medications.

Seizure Trials

Seizure TrialsBefore anti-seizure drugs are approved for use, they go through rigorous testing. But do these trials tell us everything we need to know? Learn what...

 

Treating Epilepsy

Treating EpilepsyJoin our panel of experts as they discuss various standard treatment strategies for epilepsy and the factors doctors and patients should consider as...

Epilepsy Treatment for Kids

Epilepsy Treatment for KidsIn the past, treating kids with epilepsy might have meant using a combination of drugs that had unwanted side effects. Now it's possible for kids...

 
See full list of 17 related videos

Patient Surveys for Syncope

Causes of Syncope listed in Disease Database:

Other medical conditions listed in the Disease Database as possible causes of Syncope as a symptom include:

See full list of 787 causes of Syncope
- (Source - Diseases Database)

Medications or substances causing Syncope:

The following drugs, medications, substances or toxins are some of the possible causes of Syncope as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

See full list of 64 medications causing Syncope

Drug interactions causing Syncope:

When combined, certain drugs, medications, substances or toxins may react causing Syncope as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

  • Guanethidine and Hydrochlorothiazide interaction
  • Disulfiram and Alcohol interaction
  • Antabuse and Alcohol interaction
  • Morphine and Monoamine Oxidase Type A Inhibitor interaction
  • Astramorph and Monoamine Oxidase Type A Inhibitor interaction

See full list of 191 drug interactions causing Syncope

Article Excerpts about Syncope

Syncope is the temporary loss of consciousness due to a sudden decline in blood flow to the brain. It may be caused by an irregular cardiac rate or rhythm or by changes of blood volume or distribution. Syncope can occur in otherwise healthy people. The patient feels faint, dizzy, or lightheaded (presyncope), or loses consciousness (syncope). (Source: excerpt from NINDS Syncope Information Page: NINDS)

Syncope is the temporary loss of consciousness due to a sudden decline in blood flow to the brain. It may be caused by an irregular cardiac rate or rhythm or by changes of blood volume or distribution. Syncope can occur in otherwise healthy people. The patient feels faint, dizzy, or lightheaded (presyncope), or loses consciousness (syncope). (Source: excerpt from NINDS Syncope Information Page: NINDS)

Definitions of Syncope:

A spontaneous loss of consciousness caused by insufficient blood to the brain.
- (Source - Diseases Database)

A spontaneous loss of consciousness caused by insufficient blood to the brain
- (Source - WordNet 2.1)

Fainting due to a sudden fall of blood pressure below the level required to maintain oxygenation of brain tissue.
- (Source - CRISP)

Organs affected by Syncope:

The list of organs typically affected by Syncope may include, but is not limited to:

Detailed list of causes of Syncope

The list below shows some of the causes of Syncope mentioned in various sources:

See full list of 787 causes of Syncope

How Common are these Causes of Syncope?

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Syncope. Of the 787 causes of Syncope that we have listed, we have the following prevalence/incidence information:

  • 16 causes are "very common" diseases
  • 21 causes are "common" diseases
  • 9 causes are "uncommon" diseases
  • 7 causes are "rare" diseases
  • 38 causes are "very rare" diseases
  • 730 causes have no prevalence information.

See the analysis of the prevalence of 787 causes of Syncope

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

  • Abdominal Aneurysm ... syncope, light-headedness, collapse
  • Abetalipoproteinemia ... balance problems
  • Acid-Base Imbalance ... coma, light-headedness, dizziness, fainting
  • Acoustic neuroma ... dizziness
  • Acquired Aplastic Anemia ... dizziness
  • Acute Disseminated Encephalomyelitis ... coma
  • Acute hemorrhagic leukoencephalitis ... unconsciousness
  • Acute leukaemia of ambiguous lineage ... dizziness
  • Acute megacaryoblastic leukemia ... dizziness
  • Acute myeloblastic leukemia type 1 ... dizziness
  • Acute myeloblastic leukemia type 2 ... dizziness
  • Acute myeloblastic leukemia type 3 ... dizziness
  • Acute myeloblastic leukemia type 4 ... dizziness
  • Acute myeloblastic leukemia type 5 ... dizziness
  • Acute myeloblastic leukemia type 6 ... dizziness
  • Acute myeloblastic leukemia type 7 ... dizziness
  • Acute myelocytic leukemia ... dizziness
  • Acute myeloid leukaemia and myelodysplastic syndromes related to alkylating agent ... dizziness
  • Acute myeloid leukaemia and myelodysplastic syndromes related to topoisomerase type II inhibitor ... dizziness
  • Acute myeloid leukaemia and myelodysplastic syndromes, therapy related ... dizziness
  • Acute myeloid leukemia ... dizziness
  • Acute myeloid leukemia, adult ... dizziness
  • Acute vitamin A toxicity ... dizziness
  • Adams Nance syndrome ... fainting
  • Addison's Disease ... coma, loss of consciousness, dizziness, collapse, fainting
  • Addisonian crisis ... loss of consciousness
  • Adenosine triphosphatase deficiency, anaemia due to ... dizziness, fainting
  • Adrenal gland hypofunction ... dizziness, fainting
  • Adrenal hemorrhage, neonatal ... collapse
  • Adult Panic-Anxiety Syndrome ... dizziness
  • Advanced circadian rhythm disorder ... reduced alertness
  • African Sleeping sickness ... coma
  • Airway Obstruction ... unconsciousness
  • Alcohol abuse ... coma
  • Alcohol drinking ... balance problems
  • Alcohol poisoning ... coma
  • Alcohol-Induced Disorders ... dizziness, balance problems
  • Alcoholic intoxication ... dizziness
  • Alcoholic Neuropathy ... dizziness
  • Alcoholism ... blackouts
  • Alpine syndrome ... dizziness
  • Amitriptyline toxicity ... unconsciousness
  • Amlodipine toxicity ... coma
  • Amnesic shellfish poisoning ... dizziness
  • Amoxapine toxicity ... unconsciousness
  • Amphetamine abuse ... dizziness, collapse
  • Amyloid Neuropathies ... balance problems
  • Amyloidosis VII ... coma
  • Amyloidosis, oculoleptomeningeal ... coma
  • Anaphylaxis ... syncope, coma, blackout, fainting
  • Ancylostoma duodenale ... dizziness
  • Anemia ... dizziness, unconsciousness
  • Anemia, hypochromic microcytic ... dizziness
  • Anemia, Iron-Deficiency ... dizziness, fainting
  • Anemia, Refractory, with Excess of Blasts ... dizziness, fainting
  • Anemia, Refractory, with Excess of Blasts, type 1 ... dizziness, fainting
  • Anemia, Refractory, with Excess of Blasts, type 2 ... dizziness, fainting
  • Aneurysm of sinus of Valsalva ... fainting
  • Angina Pectoris ... dizziness
  • Anorexia Nervosa ... light-headedness
  • Anoxemia ... coma
  • Anticholinergic syndrome ... coma
  • Anxiety-tension syndrome ... dizziness
  • Aorta conditions ... Syncope
  • Aorta-pulmonary artery fistula ... dizziness
  • Aortic dissection ... syncope
  • Aortic valve disease ... dizziness, fainting
  • Aortic Valve Insufficiency ... fainting
  • Aortic valve stenosis ... fainting
  • Aortic valves stenosis of the child ... dizziness, fainting
  • Aplastic anemia ... dizziness, fainting
  • Arachnoiditis ... dizziness
  • Arginase deficiency ... balance problems
  • Arrhythmogenic right ventricular dysplasia ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 1 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 10 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 11 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 12 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 2 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 3 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 4 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 5 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 6 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 7 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 8 ... lightheadedness, dizziness, fainting
  • Arrhythmogenic right ventricular dysplasia, familial, 9 ... lightheadedness, dizziness, fainting
  • Arteriosclerosis Obliterans ... dizziness
  • Asphyxia ... coma
  • Asthenopia ... dizziness
  • Asymmetric septal hypertrophy ... lightheadedness, fainting from exertion
  • Ataxia Telangiectasia ... balance problems
  • Atrial Fibrillation ... faintness
  • Atrial fibrillation, familial 1 ... dizziness, fainting
  • Atrial flutter ... dizziness, fainting
  • Atrial myxoma, familial ... dizziness, fainting
  • Autoimmune Inner Ear disease ... balance problems
  • Azotemia, famial ... reduced alertness

    B

  • Bacterial toxic-shock syndrome ... dizziness
  • Balance disorders ... wooziness, light-headedness, dizziness
  • Barotitis Media ... dizziness
  • Basedow's coma ... coma
  • Basilar artery migraine ... consciousness disturbance, fainting
  • Basilar Migraine ... light-headedness, dizziness, fainting
  • Beer-drinker syndrome ... dizziness
  • Benign Paroxysmal Positional Vertigo ... Dizziness
  • Benzodiazepine poisoning ... coma
  • Benzodiazepine toxicity ... coma
  • Bernheim syndrome ... dizziness, fainting
  • Bernheim's syndrome ... fainting
  • Botulism food poisoning ... dizziness
  • Bradbury-Eggleston syndrome ... dizziness
  • Brain cancer ... dizziness, balance problems
  • Brain compression ... coma
  • Brain Concussion ... dizziness
  • Brain conditions ... Loss of consciousness
  • Brain tumor, adult ... dizziness
  • Brown-Symmers disease ... coma
  • Brugada Syndrome ... fainting
  • Brugada syndrome 1 ... fainting
  • Brugada syndrome 2 ... fainting
  • Brugada syndrome 3 ... fainting
  • Brugada syndrome 4 ... fainting
  • Brun's syndrome ... dizziness, fainting

    C

  • Carbamate insecticide poisoning ... coma
  • Carbamoyl-phosphate synthase 1 deficiency ... coma if untreated
  • Carbon monoxide poisoning ... dizziness
  • Cardiac arrest ... loss of consciousness, collapse
  • Cardiac malformation ... fainting
  • Cardiac tamponade ... light headedness, fainting
  • Cardiac valvular dysplasia, X-linked ... fainting
  • Cardioauditory syndrome of Sanchez- Cascos ... fainting
  • Cardiomyopathy dilated 10 ... fainting
  • Cardiomyopathy dilated 1B ... fainting
  • Cardiomyopathy dilated 1C ... fainting
  • Cardiomyopathy dilated 1D ... fainting
  • Cardiomyopathy dilated 1G ... fainting
  • Cardiomyopathy dilated 1H ... fainting
  • Cardiomyopathy dilated 1I ... fainting
  • Cardiomyopathy dilated 1J ... fainting
  • Cardiomyopathy dilated 1K ... fainting
  • Cardiomyopathy dilated 1L ... fainting
  • Cardiomyopathy dilated 1M ... fainting
  • Cardiomyopathy dilated 1N ... fainting
  • Cardiomyopathy dilated 1P ... fainting
  • Cardiomyopathy dilated 1Q ... fainting
  • Cardiomyopathy dilated 1R ... fainting
  • Cardiomyopathy dilated 1S ... fainting
  • Cardiomyopathy dilated 1T ... fainting
  • Cardiomyopathy dilated 1U ... fainting
  • Cardiomyopathy dilated 1W ... fainting
  • Cardiomyopathy dilated 1Y ... fainting
  • Cardiomyopathy dilated 1Z ... fainting
  • Cardiomyopathy dilated with conduction defect ... fainting
  • Cardiomyopathy dilated with conduction defect type 1 ... fainting
  • Cardiomyopathy dilated with conduction defect type 2 ... fainting
  • Cardiomyopathy, Alcoholic ... faintness
  • Carnitine palmitoyl transferase 1 deficiency ... loss of consciousness
  • Carnitine palmitoyl transferase 2 deficiency ... loss of consciousness
  • Carnitine palmitoyl transferase deficiency ... loss of consciousness
  • Carnitine palmitoyl transferase II deficiency, infantile hepatocardiomuscular type ... loss of consciousness
  • Carnitine-acylcarnitine translocase deficiency ... unconsciousness
  • Catastrophic Antiphospholipid Syndrome ... coma
  • Central nervous system oxygen toxicity ... dizziness
  • Cerebral Aneurysm ... loss of consciousness
  • Cerebral hemorrhage ... loss of consciousness
  • Charcot-Marie-Tooth disease, Type 1A ... balance problems
  • Charcot-Marie-Tooth disease, Type 1B ... balance problems
  • Charcot-Marie-Tooth disease, Type 1C ... balance problems
  • Charcot-Marie-Tooth disease, Type 1D ... balance problems
  • Charcot-Marie-Tooth disease, Type 1E ... balance problems
  • Charcot-Marie-Tooth disease, Type 1F ... balance problems
  • Charcot-Marie-Tooth disease, Type 2A ... balance problems
  • Charcot-Marie-Tooth disease, Type 2AI ... balance problems
  • Charcot-Marie-Tooth disease, Type 2AII ... balance problems
  • Charcot-Marie-Tooth disease, Type 2C ... balance problems
  • Charcot-Marie-Tooth disease, Type 2D ... balance problems
  • Charcot-Marie-Tooth disease, Type 2E ... balance problems
  • Charcot-Marie-Tooth disease, type 4 ... balance problems
  • Charcot-Marie-Tooth disease, Type 4A ... balance problems
  • Charcot-Marie-Tooth disease, Type 4B1 ... balance problems
  • Charcot-Marie-Tooth disease, Type 4C ... balance problems
  • Charcot-Marie-Tooth disease, Type 4E ... balance problems
  • Charcot-Marie-Tooth disease, Type 4F ... balance problems
  • Charcot-Marie-Tooth disease, Type 4G ... balance problems
  • Charcot-Marie-Tooth disease, X-linked, 1 ... balance problems
  • Charcot-Marie-Tooth, demyelinating, autosomal recessive ... balance problems
  • Chemical pneumonia ... dizziness
  • Chiari Malformation ... dizziness
  • Chronic Fatigue Syndrome ... dizziness, faintness
  • Chronic Kidney Disease ... coma, light-headedness, dizziness
  • Chronic myelomonocytic leukemia ... dizziness
  • Ciguatera poisoning ... dizziness
  • Citrullinemia I, later-onset ... balance problems
  • Clomipramine Toxicity ... unconsciousness
  • Clonazepam toxicity ... coma
  • Clonidine poisoning ... coma
  • Cochleosaccular degeneration of the inner ear and progressive cataracts ... balance problems
  • Cogan's syndrome ... dizziness
  • Colchicine toxicity ... coma
  • Cold antibody hemolytic anemia ... dizziness
  • Coma ... total unconsciousness, coma
  • Combat stress reaction ... dizziness
  • Common ventricle ... fainting
  • Concussion ... coma, dizziness, temporary loss of consciousness, unconsciousness
  • Congenital aplastic anemia ... dizziness
  • Congenital arteriovenous shunt ... dizziness, fainting
  • Congenital heart block ... fainting
  • Conotruncal heart malformations ... fainting
  • Convulsions ... loss of consciousness
  • Copper toxicity ... coma
  • Cor pulmonale ... fainting
  • Cryptococcosis ... dizziness
  • Cutaneous mastocytosis ... Syncope
  • Cyanide poisoning ... coma
  • Cyclic antidepressant poisoning ... coma
  • Cyclic vomiting syndrome ... dizziness

    D

  • D-plus hemolytic uremic syndrome (D+HUS) ... coma 25%
  • Da Costa syndrome ... dizziness
  • Deafness - lymphoedema - leukemia ... dizziness
  • Deafness progressive cataract autosomal dominant ... balance problems
  • Death, Sudden, Cardiac ... loss of consciousness, dizziness, faintness
  • Decompression sickness ... dizziness, unconsciousness
  • Dehydration ... Light-headedness, loss of consciousness
  • Desipramine toxicity ... unconsciousness
  • Devic disease ... change in consciousness
  • Diabetic hypoglycemia ... light-headedness, loss of consciousness, dizziness
  • Diabetic Ketoacidosis ... Coma
  • Diabetic neuropathy ... dizziness
  • Diarrhea ... Light-headedness
  • Diazepam toxicity ... coma
  • Disopyramide toxicity ... loss of consciousness
  • Disulfiram toxicity ... coma
  • Double outlet - right ventricle II ... fainting
  • Double tachycardia induced by catecholamines ... fainting
  • Doxepin toxicity ... unconsciousness
  • Duodenal conditions ... Syncope, Dizziness
  • Duodenitis ... Dizziness
  • Dysbarism ... loss of consciousness, dizziness
  • Dysphasic dementia, hereditary ... fainting

    E

  • Eagle's syndrome ... dizziness
  • Ear infection ... Balance problems
  • Ear infection (infant) ... Balance problems
  • Ectopic pregnancy ... dizziness, collapse, fainting, fainting, fainting
  • Electrocution ... Coma
  • Emery-Dreifuss muscular dystrophy, X-linked ... fainting
  • Encephalitis ... coma, loss of consciousness
  • Encephalitis lethargica ... dizziness
  • Encephalitis, California serogroup viral ... Dizziness
  • End Stage Liver Failure ... coma
  • End-stage renal disease ... coma
  • Endolymphatic sac tumors (ELST's) in Von Hippel Lindau (VHL) disease ... dizziness
  • Envenomization by the Martinique lancehead viper ... dizziness, collapse
  • Epiglotitis ... loss of consciousness
  • Epilepsy ... loss of consciousness
  • Epilepsy, familial mesial temporal lobe ... dizziness
  • Episodic ataxia syndrome ... dizziness
  • Episodic ataxia, type 1 ... dizziness
  • Episodic ataxia, type 2 ... dizziness
  • Essential thrombocytosis - same as essential thrombocythemia ... dizziness
  • Esthesioneuroblastoma ... fainting
  • Eustachian tube disorders ... Dizziness
  • Exercise induced anaphylaxis ... loss of consciousness, dizziness

    F

  • Familial atrial fibrillation ... dizziness, fainting
  • Familial hypertension ... dizziness
  • Familial hypertrophic cardiomyopathy 1 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 10 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 2 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 3 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 4 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 6 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 7 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 8 ... lightheadedness, fainting from exertion
  • Familial hypertrophic cardiomyopathy 9 ... lightheadedness, fainting from exertion
  • Familial neurocardiogenic syncope ... fainting
  • Familial ventricular tachycardia ... light-headedness, dizziness, fainting
  • Fatal familial insomnia ... Coma
  • Favism ... dizziness
  • Febrile Seizures ... loss of consciousness
  • Felodipine toxicity ... coma
  • Fentanyl toxicity ... coma
  • Firearm Injury ... Unconsciousness
  • Fitz syndrome ... collapse
  • Formaldehyde poisoning ... coma severe cases
  • Fructose-1-phosphate aldolase deficiency, hereditary ... unconsciousness

    G

  • Ganglioglioma ... balance problems
  • Generalized anxiety disorder ... lightheadedness
  • Gitelman syndrome ... dizziness
  • Glioma ... balance problems
  • Gliosarcoma ... balance problems
  • Glycine synthase deficiency ... coma
  • Glycogen storage disease type 6 ... faintness
  • Glycogen storage disease type 6A, due to phosphorylase kinase deficiency ... faintness
  • Graft-versus-host disease ... Coma

    H

  • Hartnup Disease ... fainting
  • Hashimoto's encephalitis ... coma
  • Head injury ... syncope, loss of consciousness, concussion
  • Headache-free migraine ... dizziness
  • Hearing Impairment ... dizziness, balance problems
  • Heart attack ... light-headedness, loss of consciousness, fainting
  • Heart block ... blackouts (Stokes Adams syndrome), dizziness, fainting
  • Heart cancer ... fainting
  • Heart conditions ... Syncope
  • Heart disease ... light-headedness, fainting
  • Heart injury ... Syncope
  • Heart valve diseases ... Syncope
  • Heat exhaustion ... light-headedness, collapse
  • Heatstroke ... loss of consciousness, dizziness
  • Hemangioblastoma ... dizziness, balance problems
  • Hemangiomatosis, familial pulmonary capillary ... dizziness
  • Hemorragic fever with renal syndrome ... dizziness
  • Hemorrhagic fever ... dizziness
  • Hemorrhagic shock and encephalopathy syndrome ... coma
  • Hemorrhagic thrombocythemia ... dizziness
  • Hendra Virus ... Coma
  • Hepatic encephalopathy syndrome ... coma
  • Hepatitis ... coma, loss of consciousness
  • Hereditary amyloidosis ... dizziness
  • HHV-6 encephalitis ... coma
  • High altitude cerebral edema ... coma
  • Hip cancer ... coma, dizziness
  • Hip conditions ... Balance problems
  • Hip injury ... Balance problems
  • Hip Replacement ... Balance problems
  • HIV/AIDS ... coma
  • Holocarboxylase synthetase deficiency ... coma if untreated
  • Hyperemesis Gravidarum ... dizziness
  • Hyperglycemic Hyperosmolar Nonketotic Syndrome ... Coma
  • Hypernatremia ... coma
  • Hyperoxia ... dizziness
  • Hyperparathyroidism ... coma
  • Hypertension ... dizziness
  • Hypertrophic cardiomyopathy ... fainting from exertion, dizziness, fainting
  • Hypertrophic neuropathy of Dejerine-Sottas ... balance problems
  • Hyperventilation ... dizziness, faintness
  • Hypoadrenalism ... dizziness, fainting
  • Hypoaldosteronism ... lightheadedness, dizziness
  • Hypoglycemia ... light-headedness, loss of consciousness, dizziness
  • Hypoglycemic attack ... light-headedness, loss of consciousness, dizziness
  • Hyponatremia ... coma
  • Hypotension ... fainting
  • Hypothalamic dysfunction ... dizziness
  • Hypovolemia ... blacking out, faintness

    I

  • Idiopathic, hypertrophic, subaortic stenosis ... dizziness
  • Imipramine toxicity ... unconsciousness
  • Inborn amino acid metabolism disorder ... coma
  • Inborn urea cycle disorder ... coma
  • Insect sting allergies ... Syncope
  • Intracranial Embolism ... balance problems
  • Intracranial Hemorrhages ... unconsciousness
  • Isoniazid toxicity ... coma
  • Isradipine toxicity ... coma

    J

  • Janbon syndrome ... collapse
  • Japanese encephalitis ... coma
  • Jaw conditions ... dizziness
  • Jervell and Lange-Nielsen Syndrome ... fainting
  • Juvenile pilocytic astrocytoma ... balance problems
  • Juvenile primary lateral sclerosis ... balance problems

    K

  • Kidney failure ... coma

    L

  • Labrynthitis ... balance problems, dizziness
  • Leukemia, Myeloid ... dizziness
  • Leukemia, Myeloid, Aggressive-Phase ... dizziness
  • Lidocaine toxicity ... coma, lightheadedness, dizziness
  • Liver failure ... coma
  • Long QT syndrome ... dizziness
  • Long QT syndrome type 10 ... fainting
  • Long QT syndrome type 11 ... fainting
  • Long QT syndrome type 2 ... fainting
  • Long QT syndrome type 3 ... fainting
  • Long QT syndrome type 4 ... fainting
  • Long QT syndrome type 5 ... fainting
  • Long QT syndrome type 6 ... fainting
  • Long QT syndrome type 9 ... fainting
  • Lupus ... dizziness
  • Lyme disease ... dizziness
  • Lyssavirus ... Coma, Loss of consciousness

    M

  • Magnesium Overdose ... coma
  • Malaria ... dizziness
  • Malignant Buotonneuse fever ... coma
  • Mastocytosis ... dizziness, faintness
  • Mayaro fever ... dizziness
  • Medium-Chain Acyl-CoA Dehydrogenase Deficiency ... coma
  • Melanoma - astrocytoma syndrome ... balance problems
  • Melioidosis ... coma
  • Meningitis ... coma, reduced alertness
  • Metabolic Acidosis ... dizziness
  • Methaemoglobinaemia ... Syncope
  • Methylmalonicaciduria, vitamin B12 unresponsive, mut 0 ... coma
  • Midazolam toxicity ... coma
  • Mild Traumatic Brain Injury ... syncope, dizziness, concussion, unconsciousness
  • Mitral valve prolapse syndrome ... light-headedness
  • Mitral valve prolapse, familial, autosomal dominant ... dizziness
  • Mitral-valve prolapse ... dizziness
  • MN1 ... dizziness
  • Monosodium glutamate (MSG) adverse reaction ... dizziness
  • Morphine toxicity ... coma
  • Mosse syndrome ... dizziness
  • Motion sickness ... dizziness
  • Mountain sickness ... coma, dizziness
  • Moyamoya Disease ... disturbed consciousness
  • Multifocal ventricular premature beats ... dizziness, fainting
  • Multiple endocrine neoplasia ... Coma
  • Multiple endocrine neoplasia type 1 ... Coma
  • Multiple endocrine neoplasia type 2 ... Coma
  • Multiple endocrine neoplasia type 3 ... Coma
  • Multiple system atrophy ... lightheadedness, dizziness, fainting
  • Myelinopathies ... balance problems
  • Myelodysplastic syndromes ... Lightheadedness
  • Myelofibrosis-osteosclerosis ... dizziness

    N

  • Naxos disease ... fainting
  • Nesidioblastosis of pancreas ... fainting
  • Neuroleptic Malignant Syndrome ... coma
  • Neuropathy ataxia and retinis pigmentosa ... balance problems
  • Neurosarcoidosis ... dizziness
  • Nifedipine toxicity ... coma
  • Nimodipine toxicity ... coma
  • Nipah virus encephalitis ... dizziness
  • Nortriptyline toxicity ... unconsciousness

    O

  • Olivopontocerebellar Atrophy ... balance problems, feeling faint on standing up
  • Olivopontocerebellar atrophy type IV ... balance problems
  • Opioid poisoning ... coma
  • Opioid toxicity ... coma
  • Organophosphate insecticide poisoning ... coma
  • Orthostatic hypotension ... syncope (temporary loss of consciousness), light-headedness, lightheadedness, dizziness, dizziness, fainting, fainting
  • Orthostatic intolerance ... lightheadedness, fainting
  • Otosclerosis, familial ... balance problems

    P

  • Panic attack ... fainting-like symptoms, Lightheadedness, dizziness
  • Panic disorder ... fainting-like symptoms, Lightheadedness, dizziness
  • Paralytic shellfish poisoning ... dizziness
  • Paroxysmal ventricular fibrillation ... fainting
  • Peanut allergies ... Syncope
  • Peanut Allergy ... syncope, light-headedness
  • Pendred syndrome ... balance problems
  • Penicillin allergy ... Syncope
  • Perilymphatic fistula ... dizziness
  • Phenothiazine poisoning ... coma
  • Pheochromocytoma ... fainting
  • Pituitary cancer, childhood ... fainting
  • Pituitary tumors, adult ... fainting
  • Plant poisoning - Indian tobacco (Lobelia inflata) ... coma
  • Plant poisoning - Poison hemlock (Conium maculatum) ... coma
  • Plant poisoning - tobacco (Nicotiana tabacum) ... coma
  • Pneumonia, Aspiration ... dizziness, faintness
  • Poisoning ... Coma
  • Pollen allergy ... Syncope
  • Polycythemia ... dizziness
  • Polycythemia vera ... dizziness
  • Polymorphic catecholergic ventricular tachycardia ... fainting
  • Post-traumatic stress disorder ... dizziness
  • Postconcussive syndrome ... dizziness
  • Postoperative haemorrhage ... Coma
  • Postoperative pulmonary embolism ... Syncope
  • Postoperative septicaemia ... Coma
  • Postural orthostatic tachycardia syndrome ... lightheadedness
  • Premenstrual syndrome ... dizziness
  • Primary pulmonary hypertension ... dizziness, fainting (syncope)
  • Progressive Multifocal Leukoencephalopathy ... coma
  • Progressive Supranuclear Palsy ... balance problems
  • Protriptyline toxicity ... unconsciousness
  • Pseudotumor Cerebri ... dizziness
  • Pulmonary arteriovenous fistula ... lightheadedness, dizziness, unconsciousness
  • Pulmonary edema of mountaineers ... loss of consciousness
  • Pulmonary embolism ... syncope, dizziness, collapse
  • Pulmonary embolus ... light headedness, dizziness
  • Pulmonary heart disease ... Syncope
  • Pulmonary hypertension ... light-headedness, fainting
  • Pulmonary incompetence ... Syncope, Dizziness
  • Pulmonary supravalvular stenosis ... dizziness, fainting
  • Pulmonary valve disease ... Syncope, Dizziness
  • Pulmonary valve stenosis ... fainting

    Q

  • Quinidine toxicity ... syncope, coma

    R

  • Rapid gastric emptying ... dizziness
  • Respiratory acidosis ... coma
  • Respiratory alkalosis ... light-headedness, dizziness, fainting
  • Respiratory conditions ... Syncope
  • Respiratory failure ... Syncope
  • Respiratory infections ... Syncope
  • Respiratory system cancer ... Syncope
  • Reye's Syndrome ... coma usually occurs within 3-5 days of onset, coma, loss of consciousness
  • Rift Valley Fever ... coma, dizziness
  • Rocky Mountain spotted fever ... coma
  • Romano-Ward syndrome ... fainting

    S

  • Scombroid fish poisoning syndrome ... lightheadedness
  • Secondary pulmonary hypertension ... dizziness
  • Sedative hypnotic drug poisoning ... coma
  • Selenium poisoning ... unconsciousness
  • Sensory ataxic neuropathy, dysarthria, and ophthalmoparesis ... balance problems
  • Serotonin Syndrome ... loss of consciousness
  • Serratia cerebral abscess ... coma
  • Serratia meningitis ... coma
  • Shaken Baby Syndrome ... loss of consciousness
  • Shock ... loss of consciousness
  • Shock, Cardiogenic ... unconsciousness
  • Shock, Distributive ... unconsciousness
  • Shock, Endocrine ... unconsciousness
  • Shock, Hemorrhagic ... unconsciousness
  • Shock, Hypovolaemic ... unconsciousness
  • Shock, Neurogenic ... unconsciousness
  • Shock, Obstructive ... unconsciousness
  • Shock, Septic ... unconsciousness
  • Shock, Traumatic ... unconsciousness
  • Short QT syndrome ... dizziness, fainting
  • SIADH ... loss of consciousness
  • Sick sinus syndrome ... dizziness, fainting
  • Silo unloader syndrome ... lightheadedness
  • Sino-auricular heart block ... lightheadedness, fainting
  • Sinus node disease ... dizziness, fainting
  • Snake bite ... Dizziness
  • Sneddon Syndrome ... dizziness
  • Spastic tetraplegic - cerebral palsy ... balance problems
  • Spider Bites ... loss of consciousness, dizziness, dizziness
  • Spira syndrome ... faintness
  • Spleen conditions ... Syncope, Dizziness
  • Staphylococcal toxic shock syndrome ... dizziness
  • Stokes Adams syndrome ... fainting, blackouts
  • Streptococcal Group A invasive disease ... dizziness
  • Streptococcal Group B invasive disease ... coma
  • Streptococcal Toxic Shock Syndrome ... coma
  • Stroke ... coma, loss of consciousness, dizziness, disturbance of consciousness, Fainting
  • Subarachnoid hemorrhage ... coma, dizziness, fainting, temporary loss of consciousness
  • Sudden Arrhythmia Death Syndrome ... fainting
  • Superior vena cava syndrome ... fainting
  • Supraventricular Tachycardia ... light headedness, faintness
  • Syncopal paroxysmal tachycardia ... light-headedness, fainting
  • Syncopal tachyarrhythmia ... lightheadedness, fainting
  • Syncope ... fainting from laughing, dizziness, dizziness, loss of consciousness (syncope), lightheadedness (presyncope), fainting from coughing, fainting
  • Systemic mastocytosis ... faintness
  • Systemic monochloroacetate poisoning ... coma

    T

  • Tachycardia ... dizziness
  • Takayasu arteritis ... fainting
  • Thymic epithelial tumor ... dizziness
  • Tolterodine toxicity ... coma
  • Toxic Shock Syndrome ... Dizziness, fainting
  • Toxoplasmosis ... coma
  • Tramadol toxicity ... coma
  • Transient Ischemic Attack ... loss of consciousness, dizziness
  • Transposition of great arteries ... fainting
  • Traumatic Brain Injury ... concussion
  • Triazolam toxicity ... coma
  • Tricuspid atresia ... loss of consciousness
  • Trimipramine toxicity ... unconsciousness
  • Truncus Arteriosus ... dizziness, fainting
  • Type 1 diabetes ... coma

    U

  • Uhl anomaly ... Syncope
  • Ultram withdrawal ... dizziness
  • Urea Cycle Disorders ... Coma
  • Urticaria ... Dizziness
  • Usher Syndrome Type 3 ... Balance problems
  • Usher syndrome, type 1C ... balance problems, dizziness
  • Usher syndrome, type 1D ... balance problems, dizziness
  • Usher syndrome, type 1E ... balance problems, dizziness