Extracorporeal Membrane Oxygenation for Septic Shock.

Area of Science:

• Critical Care Medicine
• Cardiovascular Medicine
• Infectious Disease

Background:

• Septic shock has a high mortality rate.
• Extracorporeal membrane oxygenation (ECMO) is increasingly studied for its potential benefits in septic shock management.
• Previous research suggests ECMO may be more effective in cases of myocardial dysfunction rather than vasoplegic shock.

Purpose of the Study:

• To evaluate the effectiveness of ECMO in patients with septic shock.
• To determine if venoarterial ECMO specifically benefits patients with septic cardiomyopathy.
• To assess ECMO's impact on survival in distributive septic shock.

Main Methods:

• Retrospective observational study conducted at a single, high-volume ECMO center.
• Inclusion criteria: patients aged >18 with septic shock (Sepsis-3 criteria), cardiocirculatory failure requiring significant vasopressor support (VIS > 50), and adequate fluid resuscitation.
• Data collected on patient demographics, severity scores (SAPS-3, SOFA), ECMO type (venoarterial vs. venovenous), and survival outcomes.

Main Results:

• Thirty-seven patients were analyzed (mean age 54.7).
• Hospital survival was 90% for septic shock with left ventricular failure and 64.7% for distributive septic shock.
• Long-term survival at 46.1 months was 59.5%. Veno-venous ECMO and higher organ failure burden were associated with poorer outcomes.

Conclusions:

• Venoarterial ECMO provides benefit for septic cardiomyopathy.
• The study indicates improved hospital survival in distributive septic shock with ECMO.
• ECMO may be a valuable therapeutic option in select septic shock patients, warranting further investigation.