long QT syndrome
Heart rhythm disorder
Long QT syndrome is a heart rhythm disorder in which the heart takes longer than normal to recharge between beats—the "QT interval" on an electrocardiogram.
This delay can trigger sudden, chaotic heartbeats that may cause fainting, seizures, or cardiac arrest.
The condition can be inherited or caused by certain medications.
She was diagnosed with long QT syndrome after passing out during a soccer game.
Polymorphic ventricular tachycardia variant
- ventricular fibrillationDeadly heart rhythm disorder
- palpitationsAwareness of abnormal heartbeat
- tachycardiaExcessively fast pulse
- bradycardiaAbnormally slow heart rate
Protein allowing sodium passage
- repolarizationMembrane voltage reset
- depolarizationLoss of electrical gradient
- action potentialNeuron's rapid electrical discharge
- gain of functionEngineered increase in capability
Heart's electrical activity record
- repolarizationMembrane voltage reset
- electrophysiologyBiology's electrical activity science
- stress testEvaluating performance under strain
- genetic testingAnalysis for inherited disorders
Abrupt heart failure causing demise
- syncopeTemporary loss of consciousness
- faintingTemporary loss of consciousness
- seizuresInvoluntary convulsions or takings
- drowningDeath by water inhalation
cardiac arrest · ventricular fibrillation · near-drowning · SIDS · sudden infant death
Heart rhythm medications
- antihistaminesDrugs blocking allergic responses
- antidepressantsMedications treating clinical despair
- antibioticsBacteria-destroying medicines
- antipsychoticsDrugs treating severe mental disorders
fluoroquinolones · methadone · haloperidol · azithromycin · erythromycin · drug-induced · acquired
Heart rate reducers
- pacemakerDevice regulating heartbeat
- ICDDisease classification system
- cardiologistPhysician treating cardiovascular conditions
- electrophysiologistDoctor treating heart-rhythm disorders
Activity for fitness
- swimmingLocomotion through water
- divingEntering water deliberately
- startleFrighten suddenly
- loud noiseHigh-decibel auditory disturbance
alarm clock · emotional stress · postpartum · electrolyte imbalance · hypocalcemia · fever · adrenaline surge · physical exertion
Permanent DNA alteration
- inheritanceProperty received from ancestors
- congenitalExisting from birth
- genotypeOrganism's complete allele set
- phenotypeObservable characteristics of organism
penetrance · pedigree · genetic counseling · carrier · familial
torsades de pointes
Polymorphic ventricular tachycardia variant
- ventricular fibrillationDeadly heart rhythm disorder
- palpitationsAwareness of abnormal heartbeat
- tachycardiaExcessively fast pulse
sodium channel
Protein allowing sodium passage
- repolarizationMembrane voltage reset
- depolarizationLoss of electrical gradient
- action potentialNeuron's rapid electrical discharge
electrocardiogram
Heart's electrical activity record
- repolarizationMembrane voltage reset
- electrophysiologyBiology's electrical activity science
- stress testEvaluating performance under strain
sudden cardiac death
Abrupt heart failure causing demise
- syncopeTemporary loss of consciousness
- faintingTemporary loss of consciousness
- seizuresInvoluntary convulsions or takings
drowning · cardiac arrest · ventricular fibrillation · near-drowning · SIDS · sudden infant death
antiarrhythmics
Heart rhythm medications
- antihistaminesDrugs blocking allergic responses
- antidepressantsMedications treating clinical despair
- antibioticsBacteria-destroying medicines
antipsychotics · fluoroquinolones · methadone · haloperidol · azithromycin · erythromycin · drug-induced · acquired
beta-blockers
Heart rate reducers
- pacemakerDevice regulating heartbeat
- ICDDisease classification system
- cardiologistPhysician treating cardiovascular conditions
exercise
Activity for fitness
loud noise · alarm clock · emotional stress · postpartum · electrolyte imbalance · hypocalcemia · fever · adrenaline surge · physical exertion
mutation
Permanent DNA alteration
- inheritanceProperty received from ancestors
- congenitalExisting from birth
- genotypeOrganism's complete allele set
phenotype · penetrance · pedigree · genetic counseling · carrier · familial
- heart conditionsheart failure, heart disease, heart attack, arrhythmia, cardiomyopathy
- arrhythmiasatrial fibrillation, A-fib, afib, arrhythmia, ventricular fibrillation
- channelopathies
- Dominant DisordersHuntington's disease, neurofibromatosis, tuberous sclerosis, polydactyly
- Heart Electricsdepolarization, repolarization, ECG, EKG, electrocardiogram
- Heart Defectsheart defect, congenital heart disease, atrial septal defect, ASD, hole in heart
long QT syndromemyocardial infarction
Cardiac tissue death event
coronary artery disease · congestive heart failure · cardiomyopathy
long, longer, lengthy, prolonged, lengthen, elongate, longest, elongated, lengthened