Cardiogenic shock
Cardiogenic shock Updated: 06/23/2022 © Jun Wang, MD, PhD General features Reduced cardiac output due to severe ventricular dysfunction Adequate circulating volume Tissue hypoxia due to hypoperfusion Etiology Acute myocardial infarction: most common cause Multivessel coronary artery disease Arrhythmia Mechanic defects: septal defect, papillary muscle rupture, etc Key risk factors Older age Anterior myocardial infarction History of hypertension, diabetes mellitus, multivessel coronary artery disease, myocardial infarction Systolic BP< 120 mmHg Heart rate > 90 beats per minute Heart failure at admission EKG findings of ST-elevation and left bundle branch block Clinical presentations Presentation associated with underlying cause: acute myocardial infarction, etc Chest pain Difficulty in breathing Symptoms of shock : Tachycardia Hypotension Tachypnea Physical examination findings Distended jugular vain Coolness of skin Gallo