BSN Notes: Common Signs And Symptoms: Shock- Cardiogenic Shock


Cardiogenic Shock
·         Blood flow decreased due to an intrinsic defect in cardiac function -either the heart muscle, or the valves are dysfunctional.
·         Heart is unable to pump the blood to body.
·         In myocardial infarction, when the amount of damaged ischemic muscle may be so great that the heart cannot pump anymore. The decreased contractility causes a decrease in stroke volume.
Risk Factors for Cardiogenic Shock
Coronary Factors
·         Myocardial infarction
Non-coronary Factors
·         Cardiomyopathies
·         Valvular damage
·         Cardiac tamponade      
·         Dysrhythmias
·         Hypovolemia
·         Pulmonary edema (non cardiogenic)
↓cardiac contractibility → ↓ in stroke volume and C.O. → pulmonary congestion, ↓ed systemic perfusion , ↓coronary artery perfusion
Clinical Features:
Angina pectoris,
Dimionished heart souds
Acute ↓ in BP ( > 30mmHg)
↓Cardiac output
Tachypnoea, shallow breath
Perfused sweating, cold and clammy extremities
Weak , thready pulse
            Primary goal is to improve myocardial muscle function
            Inotropes: Dobutamine increases myocardial contractility in the presence of normal or slightly decreased blood pressure

            Intra-aortic balloon pump: reduces the workload of the heart and improves perfusion of the coronary artery.

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item BSN Notes: Common Signs And Symptoms: Shock- Cardiogenic Shock
BSN Notes: Common Signs And Symptoms: Shock- Cardiogenic Shock
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