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High-volume vs standard fluid therapy in a septic pig model. Impact on pulmonary function
M Yu1, N W Hasaniya, D M Takanishi
1Department of Surgery, University of Hawaii, Honolulu, USA.
Archives of Surgery (Chicago, Ill. : 1960)
|October 23, 1997
Summary
High-volume fluid resuscitation in sepsis, aiming for higher pulmonary artery occlusion pressure (PAOP), did not worsen lung function or oxygenation compared to standard volumes.
Area of Science:
- Critical Care Medicine
- Hemodynamics
- Sepsis Pathophysiology
Background:
- Sepsis management involves fluid resuscitation to optimize oxygen delivery.
- The optimal fluid volume and hemodynamic targets remain debated.
- High fluid volumes may risk pulmonary edema.
Purpose of the Study:
- To compare pulmonary function and organ blood flow in septic pigs receiving high-volume versus standard-volume fluid resuscitation.
- To evaluate the impact of different fluid resuscitation strategies on hemodynamic goals.
Main Methods:
- Prospective study in eleven septic pigs.
- Two groups: high-volume (target PAOP 12 mm Hg) and standard-volume (target PAOP 8 mm Hg).
- Fluid resuscitation adjusted to achieve oxygen delivery goals over 24 hours.
Main Results:
- The high-volume group exhibited greater fluid balance and weight gain.
- Higher pulmonary artery occlusion pressure (PAOP) was observed in the high-volume group.
- No significant differences in intrapulmonary shunt or extravascular lung water between groups.
Conclusions:
- High-volume fluid resuscitation targeting a higher PAOP in early sepsis does not increase pulmonary edema.
- This strategy maintained adequate oxygenation without compromising lung function compared to lower filling pressures.