What Happens to the Pupils During Cardiac Arrest?

What Happens to Pupils During Cardiac Arrest?

1. During cardiac arrest, pupils dilate and may even become fixed, showing no or very weak reflexes to light.

2. Cardiac arrest refers to the sudden cessation of the heart's pumping function, characterized by the disappearance of carotid pulses and heart sounds, resulting in severe ischemia and hypoxia of vital organs, ultimately leading to the termination of life. This unexpected and sudden death is also medically termed sudden cardiac death. Causes may be associated with diseases such as coronary atherosclerotic heart disease, acute myocarditis, aortic stenosis, and pulmonary valve stenosis. Severe acidosis, drug allergies, and disturbances in electrolyte and acid-base balance can also trigger cardiac arrest. Apart from pupil dilation, patients experiencing cardiac arrest may also exhibit loss of carotid pulses, respiratory arrest, and loss of consciousness, requiring immediate resuscitation measures including artificial respiration, chest compressions, and promptly calling emergency services.

3. Given the potential life-threatening nature of cardiac arrest, it is crucial to actively manage underlying conditions and follow medical advice.