asístole

Asystole is a medical condition characterized by the absence of electrical activity in the heart, as indicated by a flat line on an electrocardiogram (ECG). It is often referred to as "flatline" and represents a complete cessation of organized cardiac electrical function. In clinical practice, asystole is considered a state of cardiac arrest, signifying that the heart is not beating effectively to pump blood. This condition is typically a terminal event if not immediately addressed with advanced life support measures.

The causes of asystole are varied and can include severe myocardial infarction, pulmonary embolism, profound hypothermia, certain drug overdoses, and electrolyte imbalances. It can also occur as a result of prolonged or untreated cardiac arrest from other arrhythmias like ventricular fibrillation or pulseless ventricular tachycardia. Diagnosing asystole is straightforward, relying solely on the ECG reading.

Management of asystole is a critical component of cardiopulmonary resuscitation (CPR). Immediate chest compressions and artificial ventilation are initiated. Pharmacological interventions, such as epinephrine, are administered to try and stimulate cardiac activity. However, the prognosis for asystole is generally poor, even with aggressive resuscitation efforts. The focus of treatment is on identifying and reversing any reversible causes contributing to the flatline.