After how many days does the hyperdynamic phase of cardiac dysfunction typically begin following a burn?

The hyperdynamic phase of cardiac dysfunction following a burn typically begins around 2-3 days post-injury. During this period, the body responds to the burn injury with significant physiological changes, particularly in the cardiovascular system.

In the immediate aftermath of a burn, the body experiences a shock phase characterized by fluid shifts and potential hypovolemia, which can lead to impaired perfusion. As inflammation and stress from the injury progress, the body may enter a hyperdynamic state, resulting in increased cardiac output and heart rate as compensatory mechanisms take effect. This phase reflects the body’s effort to maintain adequate circulation and oxygen delivery to tissues despite the ongoing stress from the burn injury.

Understanding the timing of this hyperdynamic phase is crucial for healthcare providers in order to monitor and manage cardiovascular function effectively, optimize fluid resuscitation, and avoid complications associated with altered hemodynamics during the recovery process.