tachycardia
TACHYCARDIA

Tachycardia or tachyarrhythmia is having a heart rate of >100 beats/min.

Divided into supreventricular and ventricular tachycardia.

Signs and symptoms related to rapid heart rate are altered sensorium, angina, shortness of breath, myocardial infarction, hypotension and other signs of shock (eg cold clammy skin, low urine output), heart failure or pulmonary congestion.

Control Strategy for A-FIB

  • Lenient HR control, compared to strict HR control, may be beneficial in patients w/ persistent atrial fibrillation who have stable ventricular function (LV ejection fraction >0.40) &/or no symptoms related to atrial fibrillation
    • LV function should be monitored in these patients
    • Lenient HR control is defined as achieving resting HR <110 bpm; strict HR control is <80 bpm at rest & HR <110 bpm during a 6-min walk
  • One trial revealed that in patients w/ atrial fibrillation & systolic heart failure, routine strategy of rhythm control is not beneficial compared to rate control strategy
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