tachycardias
Abnormally fast heartbeats
Tachycardias is the plural of tachycardia, a medical term for abnormally rapid heart rate—typically over 100 beats per minute at rest.
The word covers various conditions: The cardiologist distinguished between the different tachycardias based on where they originated in the heart.
Some tachycardias are harmless; others require treatment.
Abnormal cardiac rhythm
- palpitationsAwareness of abnormal heartbeat
- atrial fibrillationDisorganized cardiac rhythm disorder
- flutterRapid light movement
- electrophysiologyBiology's electrical activity science
beta blockers · antiarrhythmic · electrocardiogram · pacemaker · defibrillator · cardioversion · ablation · reentry
Awareness of abnormal heartbeat
- chest painDiscomfort in thoracic region
- shortness of breathDifficulty inhaling enough air
- dizzinessUnsteady, spinning sensation
- syncopeTemporary loss of consciousness
fatigue · lightheadedness · racing heart · fluttering · pounding · breathlessness · weakness · fainting
Overproduction of metabolic hormones
- electrolyte imbalanceAbnormal blood mineral levels
- caffeineMethylxanthine stimulant compound
- dehydrationExcessive fluid loss
- anemiaRed cell deficiency
fever · stress · stimulants · alcohol · hypertension · cardiomyopathy · medications · cocaine
Abrupt cessation of circulation
- heart failureInadequate blood pumping condition
- strokeSudden brain blood blockage
- sudden deathInstant-win tiebreaker format
- cardiomyopathyHeart muscle disorder
arrhythmia
Abnormal cardiac rhythm
- palpitationsAwareness of abnormal heartbeat
- atrial fibrillationDisorganized cardiac rhythm disorder
- flutterRapid light movement
electrophysiology · beta blockers · antiarrhythmic · electrocardiogram · pacemaker · defibrillator · cardioversion · ablation · reentry · heart rate
palpitations
Awareness of abnormal heartbeat
- chest painDiscomfort in thoracic region
- shortness of breathDifficulty inhaling enough air
- dizzinessUnsteady, spinning sensation
syncope · fatigue · lightheadedness · racing heart · fluttering · pounding · breathlessness · weakness · fainting · sweating
hyperthyroidism
Overproduction of metabolic hormones
- electrolyte imbalanceAbnormal blood mineral levels
- caffeineMethylxanthine stimulant compound
- dehydrationExcessive fluid loss
anemia · fever · stress · stimulants · alcohol · hypertension · cardiomyopathy · medications · cocaine · epinephrine
cardiac arrest
Abrupt cessation of circulation
- heart failureInadequate blood pumping condition
- strokeSudden brain blood blockage
- sudden deathInstant-win tiebreaker format
cardiomyopathy · blood clots · syncope · ventricular fibrillation