National Nursing Review : Nursing Study Resources & Health Tips

It is defined as a state of hypo-perfusion tissue associated with dysfunction of the heart pump. Its main cause is myocardial infarction in acute phase.
Cardiogenic shock from myocardial infarction is associated:

• the extent of necrosis of the left ventricular mass mainly
• a mechanical complications: cardiogenic shock secondary
• septal rupture responsible for CIV
• acute mitral regurgitation due to rupture or dysfunction pillar of mitral
• much more rarely, rupture of the free wall of left ventricle in charge of tamponade.
• the extension of an infarction less than the right ventricle

Symptoms:
In addition to signs of acute infarction, there are signs of tissue hypoperfusion:

• neurological signs: agitation, confusion, stupor,
• Signs peripheral coldness, pallor, mottling, cyanosis,
• Renal signs: oligo-anuria,
• hemodynamic signs: systolic blood pressure <90 mm Hg, toe pressure differential pressure, tachycardia with pulse spinning,
• signs of elevated filling pressures left (pulmonary edema, gallop …) and right (jugular turgor, hepato-jugular reflux).

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