Related Experiment Videos
Interaction between a perfluorocarbon emulsion and radiographic contrast media
Ralf-Peter Franke1, Peter Reuter, Wolfgang Röhlke
1University of Ulm, ZIBMT, Department of Biomaterials, Albert-Einstein-Allee 47, D-89081 Ulm, Germany.
The Journal of Invasive Cardiology
|May 21, 2004
Summary
Perfluorocarbon (PFC) emulsions used as blood substitutes caused fatal right heart failure in pigs due to capillary obstruction. Combining PFC emulsions with radiographic contrast media led to particle aggregation and emulsion breakdown, necessitating careful timing of their use.
Area of Science:
- Biomedical Engineering
- Cardiovascular Research
- Toxicology
Background:
- Perfluorocarbon (PFC) emulsions are investigated as potential blood substitutes.
- Evaluating PFC emulsions requires understanding their interactions with other medical agents and physiological effects.
Purpose of the Study:
- To assess the safety and efficacy of specially designed perfluorocarbon (PFC) emulsions as blood substitutes in a porcine model of induced left ventricular ischemia.
- To investigate potential adverse interactions between PFC emulsions and radiographic contrast media.
Main Methods:
- Infusion of 200 ml PFC emulsion concurrent with 200 ml blood withdrawal in healthy farm pigs.
- Use of radiographic contrast media for balloon catheter placement in the left coronary artery.
- Histopathological analysis of organs (heart, lung, liver, kidneys, spleen) and laboratory investigation of PFC emulsion stability.
Main Results:
- Both pigs experienced fatal right heart failure.
- Histopathology revealed capillary obstruction by foreign body material (>3 micrometers) in multiple organs.
- Severe interference between PFC emulsion and radiographic contrast media (Accupaque) caused rapid particle size increase (311 nm to >3 micrometers).
Conclusions:
- PFC emulsions, when combined with radiographic contrast media, pose significant risks due to particle aggregation and potential capillary obstruction.
- Strict guidelines are necessary regarding the timing of PFC emulsion administration relative to radiographic contrast media use.
- Further research is needed to understand PFC emulsion elimination mechanisms from circulation.