Critical Matters Fluid Responsiveness
13 snips
Jan 27, 2022 
Haney Mallemat, a critical care intensivist and ultrasound expert at Cooper University Health, dives deep into the nuances of fluid resuscitation. He discusses the balance between the benefits and potential harms of fluid therapy, emphasizing the importance of predicting fluid responsiveness. Haney highlights dynamic versus static assessment techniques, including the use of ultrasound to assess the IVC and the effectiveness of tests like passive leg raises. He also pushes for a thoughtful approach to fluid administration, treating it like a medication rather than a blanket solution.
AI Snips
Chapters
Transcript
Episode notes
Static Versus Dynamic Testing
- Static measures (e.g., CVP, mucous membranes) are quick but inaccurate except at extremes.
- Dynamic measures test a hypothesis by giving a controlled intervention and reassessing stroke volume.
Check Conditions Before Using PPV/SVV
- Only rely on pulse pressure or stroke volume variation when strict conditions are met (sinus rhythm, controlled tidal volume, no spontaneous breathing, intact RV).
- If conditions aren't met, prefer alternate dynamic tests to avoid misleading results.
Slow A‑Line Sweep For Better PPV
- Slow the arterial monitor sweep speed to better visualize and measure pulse pressure variation.
- Calculate variation as (max−min)/mean and interpret against ~12–15% thresholds.