Document Detail

Liver embolizations in oncology. A review. Part II. Arterial radioembolizations, portal venous embolizations, experimental arterial embolization procedures.
MedLine Citation:
PMID:  17873303     Owner:  NLM     Status:  MEDLINE    
Arterial embolization of the liver may temporarily retard the growth of its primary and secondary tumors which are both mainly nourished arterially. Addition of radioisotopes, mostly (131)I or (90)Y, results in radioembolizations which predominantly act by radiation and less by ischemia. They may therefore be utilized in the absence of portal venous flow when conventional embolization is hazardous. (131)I-oily radioembolization seems to prolong short-term survival in such patients with unresectable hepatocellular cancers, and to improve the prognosis after resection of hepatocellular cancer. The procedure does however not palliate better than "cold" chemoembolization in patients with preserved portal flow, except for having milder side effects. Embolization with (90)Y-coupled microspheres may shrink primary and secondary liver tumors but has so far unproven effects on survival. Embolization of portal venous branches gives compensatory hypertrophy of the non-embolized liver and can increase the volume of the future remnant liver before resection. This diminishes the risk for postoperative liver failure after extensive resection and/or in the presence of chronic liver disease, and permits wider surgical indications. Tumor growth may however be accelerated, and the hypertrophy is inhibited by severe liver parenchymal disease in which situation the method would be most needed. Experimental use of liver arterial embolizations includes combined arterial and portal embolizations, i.e. "chemical hepatectomy," arterial embolizations before external radiotherapy, administration of boron for neutron capture therapy, immunoembolizations, and future gene therapy.
Peter Gunvén
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Medical oncology (Northwood, London, England)     Volume:  24     ISSN:  1357-0560     ISO Abbreviation:  Med. Oncol.     Publication Date:  2007  
Date Detail:
Created Date:  2007-09-17     Completed Date:  2008-01-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9435512     Medline TA:  Med Oncol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  287-96     Citation Subset:  IM    
Department of Oncology, Radiumhemmet, Karolinska University Hospital at Solna, Stockholm 171 76, Sweden.
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MeSH Terms
Combined Modality Therapy
Embolization, Therapeutic / methods*
Liver / blood supply*
Liver Neoplasms / blood supply,  therapy*
Medical Oncology / methods
Portal Vein

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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