User:Mr. Ibrahem/Tachycardia
Medical condition / From Wikipedia, the free encyclopedia
Tachycardia is a heart rate that exceeds 100 beats per minute in an adult, though is of greater concern when it exceeds 150.[1][3] Symptoms may vary from none to severe.[1] These may include palpitations, light headedness, shortness of breath, chest pain, or syncope.[1]
Tachycardia | |
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Other names | Tachyarrhythmia |
ECG showing sinus tachycardia with a rate of about 100 beats per minute | |
Pronunciation |
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Specialty | Cardiology |
Symptoms | Palpitations, light headedness, shortness of breath, chest pain, or syncope[1] |
Types | Supraventricular, ventricular[2] |
Risk factors | Fever, heart disease, stimulants, electrolyte abnormalities[1][3] |
Diagnostic method | Electrocardiogram (ECG)[1] |
Treatment | Depends on the type[1] |
Frequency | Common[4] |
Types include sinus tachycardia, paroxysmal supraventricular tachycardia, atrial fibrillation, atrial flutter, extra beats such as atrial premature beats and ventricular premature beats, ventricular tachycardia, and ventricular fibrillation.[2] Underlying risk factors include low oxygen, fever, heart disease, stimulants, and electrolyte abnormalities.[1][3] Diagnosis is by electrocardiogram (ECG).[1] They can be divided into narrow complex and wide complex and than further divided into regular and irregular.[1]
Treatment depends on the type of tachycardia.[1] An underlying cause may need to be addressed, if present.[3] If a person is unstable due to the tachycardia, synchronized cardioversion is generally recommended, though in certain cases adenosine may be used.[3] If the QRS complex is narrow and the person is stable vagal maneuvers, adenosine, beta blockers, or calcium channel blockers may be used.[3] Tachycardia is common.[4]