Targeted Tissue Perfusion Versus Macrocirculatory-Guided Standard Care in Patients With Septic Shock: A Randomized...

Area of Science:

• Critical Care Medicine
• Sepsis Research
• Hemodynamic Management

Background:

• Septic shock management often involves maintaining mean arterial pressure (MAP) within specific guidelines.
• Optimizing tissue perfusion is a key goal in treating septic shock.
• The balance between adequate MAP and tissue perfusion requires further investigation.

Purpose of the Study:

• To compare a targeted tissue perfusion (TTP) strategy with standard care (SC) in septic shock patients.
• To evaluate if TTP, allowing lower MAP, improves patient outcomes.
• To assess the safety and efficacy of TTP compared to SC.

Main Methods:

• A randomized, parallel-group, open-label clinical trial involving 219 patients with septic shock.
• Patients were allocated to either TTP (n=111) or SC (n=108) groups.
• The TTP protocol included capillary refill time, skin temperature, lactate, and MAP 50-65 mmHg; SC followed 2012 Surviving Sepsis Campaign guidelines.

Main Results:

• The primary outcome (days alive with normal lactate and without vasopressors/inotropes at 30 days) was similar: 23 days (TTP) vs. 22 days (SC).
• No significant differences were observed in secondary outcomes, including mortality (24.7% TTP vs. 27.8% SC).
• MAP levels were lower in the TTP group compared to the SC group.

Conclusions:

• Targeting tissue perfusion with lower MAP targets did not improve 30-day outcomes in septic shock patients.
• The TTP strategy did not introduce additional safety concerns compared to standard care.
• Further research may explore alternative perfusion targets or patient subgroups.