Shock Classification Types - Pathophysiology Comparison Obstructive Shock: • Obstructive shock is characterized by a blockage in blood flow caused by a massive pericardial effusion, cardiac tamponade, or tension pneumothorax. • Echocardiographic Signs: Depends on the cause. Pulmonary embolism or pneumothorax: dilated right ventricle, small left ventricle. Tamponade: pericardial effusion, small left and right ventricles, dilated inferior vena cava. Distributive Shock: • Distributive Shock is Characterized by hypovolemia and hypotension. It is the result of vasodilatation and release of inflammatory mediators. • Echocardiographic Signs: Normal cardiac chambers and (usually) preserved contractility. Cardiogenic Shock: • Cardiogenic shock is characterized by low cardiac output and inadequate oxygen transport. It can be the result of a myocardial infarction. end-stage cardiomyopathy. advanced valvular disease. severe myocarditis, or severe cardiac arrhythmias. • Echocardiographic Signs: Large ventricles and poor contractility. Hypovolemic Shock: • Hypovolemic shock is characterized by internal or external fluid loss leading to organ failure. • Echocardiographic Signs: Small cardiac chambers and normal or high contractility. #Shock #Types #Pathophysiology #Comparison #criticalcare #diagnosis #classification
