当前位置： SCI文献检索 > CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY期刊下所有文献 > Temporary arterial embolization of liver parenchyma with degradable starch microspheres (EmboCept®S) in a swine model.

Temporary arterial embolization of liver parenchyma with degradable starch microspheres (EmboCept®S) in a swine model.

Abstract：

BACKGROUND:This study aimed to evaluate the embolic properties, time to reperfusion, and histologic changes in temporary embolization of liver tissue with degradable starch microspheres (DSM) in a swine model. METHODS:In four adult minipigs, DSMs were injected into the right or left hepatic artery on the lobar level until complete stasis of the blood flow was detectable angiographically. The time required to complete angiographically determined reperfusion was noted. The animals were killed 3 h after complete reperfusion, and samples were taken from the liver. Histologic examinations of the embolized liver parenchyma and untreated tissue were performed. RESULTS:Hepatic arterial embolization using DSMs was technically successful in all cases, with complete blood flow stasis shown by control angiography. A single vial of DSMs (450 mg/7.5 ml) was sufficient to embolize a whole liver lobe in all cases. Angiography showed complete reconstitution of hepatic arterial perfusion after a mean time to reperfusion of 32 ± 6.1 min (range, 26-39 min). Hematoxylin and eosin staining showed no histologically detectable differences between untreated tissue and parenchyma embolized with DSMs except for mild sinusoidal congestion in one case. Indirect in situ DNA nick end labeling staining (TUNEL) showed only single positive hepatocytes, indicating apoptosis. CONCLUSION:Temporary embolization of the hepatic artery using DSMs is feasible with complete reperfusion after 30 min in pigs. Even after complete arterial blood flow stasis, no extensive tissue damage to the embolized liver parenchyma was observed at histologic examinations in this short-term study.

journal_name

Cardiovasc Intervent Radiol

journal_title

Cardiovascular and interventional radiology

authors

Pieper CC,Meyer C,Vollmar B,Hauenstein K,Schild HH,Wilhelm KE

doi

10.1007/s00270-014-0966-2

subject

Has Abstract

pub_date

2015-04-01 00:00:00

pages

435-41

issue

2

eissn

0174-1551

issn

1432-086X

journal_volume

38

pub_type

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