Related Experiment Video
Updated: Aug 9, 2026

Description of a Swine Infant Model of Volume-Controlled Hemorrhagic Shock
Published on: November 3, 2023
High-volume hemofiltration as salvage therapy in severe hyperdynamic septic shock
Rodrigo Cornejo1, Patricio Downey, Ricardo Castro
1Intensive Care Medicine, Catholic University of Chile, Marcoleta 367 Tercer Piso, Santiago Centro, Chile.
High-volume hemofiltration (HVHF) may reverse refractory septic shock. This short-term intervention improved hemodynamics and survival rates in critically ill patients, proving feasible and safe.
Area of Science:
- Critical Care Medicine
- Nephrology
- Sepsis Pathophysiology
Background:
- Severe hyperdynamic septic shock often presents with refractory hypotension and hypoperfusion.
- Standard multi-intervention approaches may be insufficient in managing escalating norepinephrine requirements.
Purpose of the Study:
- To assess the efficacy of short-term (12-hour) high-volume hemofiltration (HVHF) in reversing refractory septic shock.
- To evaluate the feasibility and safety of HVHF and compare observed versus expected hospital mortality.
Main Methods:
- Prospective, interventional study involving 20 patients with severe septic shock unresponsive to conventional therapy.
- A single 12-hour session of HVHF was administered.
- Hemodynamic parameters, lactate levels, and norepinephrine requirements were monitored.
Main Results:
- Eleven patients (responders) demonstrated improved norepinephrine requirements, lactate levels, and arterial pH.
- Hospital mortality was 40%, lower than the predicted 60%.
- Response to HVHF was a significant predictor of survival (odds ratio 9).
Conclusions:
- Short-term HVHF can be a beneficial salvage therapy for severe refractory hyperdynamic septic shock.
- The intervention improves hemodynamic and perfusion parameters, acid-base status, and hospital survival.
- HVHF is a feasible and safe treatment option in this patient population.
Related Concept Videos
Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
Continuous Renal Replacement Therapy
Hemodialysis I: Introduction
Hemodialysis II: Procedure and Complications
Acute Kidney Injury V: Interprofessional Care
Dialysis
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...