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  2. Advanced cardiac life support - Wikipedia

    en.wikipedia.org/wiki/Advanced_cardiac_life_support

    Advanced cardiac life support, advanced cardiovascular life support (ACLS) refers to a set of clinical guidelines established by the American Heart Association (AHA) for the urgent and emergent treatment of life-threatening cardiovascular conditions that will cause or have caused cardiac arrest, using advanced medical procedures, medications, and techniques.

  3. Antiarrhythmic agent - Wikipedia

    en.wikipedia.org/wiki/Antiarrhythmic_agent

    (The re-entrant rhythm is less likely to interact with tissue that has become refractory). The class III agents exhibit reverse-use dependence (their potency increases with slower heart rates, and therefore improves maintenance of sinus rhythm). Inhibiting potassium channels results in slowed atrial-ventricular myocyte repolarization.

  4. Cardiac arrest - Wikipedia

    en.wikipedia.org/wiki/Cardiac_arrest

    The most common mechanism underlying sudden cardiac arrest is an arrhythmia (an irregular rhythm). [30] Without organized electrical activity in the heart muscle , there is inconsistent contraction of the ventricles , which prevents the heart from generating adequate cardiac output (forward pumping of blood from the heart to the rest of the ...

  5. Pulseless electrical activity - Wikipedia

    en.wikipedia.org/wiki/Pulseless_electrical_activity

    Pulseless electrical activity (PEA) is a form of cardiac arrest in which the electrocardiogram shows a heart rhythm that should produce a pulse, but does not.Pulseless electrical activity is found initially in about 20% of out-of-hospital cardiac arrests [1] and about 50% of in-hospital cardiac arrests.

  6. Defibrillation - Wikipedia

    en.wikipedia.org/wiki/Defibrillation

    Defibrillation is a treatment for life-threatening cardiac arrhythmias, specifically ventricular fibrillation (V-Fib) and non-perfusing ventricular tachycardia (V-Tach). [1] [2] A defibrillator delivers a dose of electric current (often called a counter-shock) to the heart.

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