What hemodynamic profile is characteristic of cardiogenic shock?

In cardiogenic shock, the heart's ability to pump effectively is severely compromised, resulting in decreased cardiac output (CO). This leads to inadequate perfusion and oxygen delivery to tissues. As a compensatory response to reduced cardiac output, the pulmonary capillary wedge pressure (PCWP) typically increases due to elevated pressures in the pulmonary circulation, reflecting fluid backup into the lungs.

Additionally, pulmonary vascular resistance (PVR) tends to increase in cardiogenic shock owing to the elevated left atrial and pulmonary arterial pressures, which can cause pulmonary vasoconstriction and further stress on the heart.

Therefore, the characteristic hemodynamic profile of cardiogenic shock includes decreased cardiac output, increased pulmonary capillary wedge pressure, and increased pulmonary vascular resistance. This profile highlights the failure of the heart's pumping efficiency while showcasing the effects of the compensatory mechanisms activated in an attempt to maintain circulation and oxygen delivery despite the underlying cardiac dysfunction.