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Short-interval recanalization after gelfoam occlusion
David P Munger1, John M Gemery1, Andrew R Forauer1
1Department of Radiology, Section of Interventional Radiology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA.
Radiology Case Reports
|August 15, 2022
Summary
Gelfoam (absorbable gelatin sponge) arterial occlusion may resolve in less than 48 hours, much faster than the previously assumed two weeks. This rapid recanalization impacts its use in managing arterial hemorrhage.
Area of Science:
- Interventional Radiology
- Vascular Surgery
- Hepatobiliary Medicine
Background:
- Gelfoam (absorbable gelatin sponge) is a temporary embolic agent used in arterial embolization, particularly in trauma.
- It is generally understood to provide temporary occlusion, resolving within approximately two weeks.
- Shorter occlusion intervals for Gelfoam have not been previously documented.
Observation:
- A case of spontaneous arterial hemorrhage from a ruptured hepatic malignancy was treated with Gelfoam slurry occlusion of the right hepatic artery.
- The patient experienced recurrent hemorrhage, necessitating repeat imaging.
- CT and hepatic arteriography revealed recanalization of the treated artery within 48 hours.
Findings:
- Gelfoam arterial occlusion can be significantly shorter than the presumed two-week duration.
- Recanalization occurred in less than 48 hours in this specific case of hepatic artery embolization.
- The efficacy of Gelfoam as a temporary occlusion agent may be limited by rapid recanalization.
Implications:
- The rapid resolution of Gelfoam embolization challenges current clinical assumptions.
- Clinicians should consider the potential for early recanalization when using Gelfoam for arterial occlusion, especially in high-flow or critical vascular beds.
- Further studies are warranted to determine the factors influencing Gelfoam recanalization timeframes and its clinical implications in various settings.
