Evidence map›Paper›PMID 17457170›Full record

ArticleAnnals of surgery2007

Hepatic resection but not radiofrequency ablation results in tumor growth and increased growth factor expression.

Kenneth Meredith, Dieter Haemmerich, Chen Qi, David Mahvi

Open access · greenAbstract readComparative Study
In one paragraph

Article in Annals of surgery, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. A systematic review of two-stage hepatectomy in patients with initially unresectable colorectal liver metastases.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2013
    Pooled it
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  12. Changes in growth factor levels after thermal ablation in a murine model of colorectal liver metastases.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2011
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Kenneth MeredithDepartment of Surgery, University of Wisconsin, 600 Highlands Avenue, Madison, WI 53792, USA.
Dieter Haemmerich
Chen Qi
David Mahvi
University of Wisconsin–Madison · US

Funding

HEPATIC RF ABLATION: DEVELOPMENT OF EFFECTIVE DEVICESR01DK058839 · NIDDK · UNIVERSITY OF WISCONSIN MADISON · PI MAHVI, DAVID M · 2001 to 2005
$2.0M
NIDDK NIH HHS R01 DK 058839-01A1
6 · The paper itself

Abstract

objectiveThe purpose of this study was to examine the effects of radiofrequency ablation (RFA) on tumor growth and growth factor expression in a murine model.

backgroundSurgical excision remains the only potentially curative therapy for hepatic malignancies. Tumor growth in the remaining liver may be accelerated after resection. The mechanism of this enhanced tumor growth remains unexplained, although growth factors that are released after hepatic resection (which facilitate liver regeneration) may play a role in residual tumor growth. RFA has become a viable alternative for patients who are not candidates for a curative resection. The effect of RFA on tumor growth and growth factor expression has not been studied.

methodsHepatic tumors were established by direct injection with CT-26, a murine adenocarcinoma. Tumors were treated by either partial hepatic resection (PH) or RFA. Hepatocyte growth factor (HGF) and basic fibroblast growth factor (bFGF) expression was measured at selected time intervals post-treatment. Tumor growth was measured by reinjection of CT-26 into the residual liver after treatment. Nine days after reinjection, tumor volume was calculated and compared with nontreated controls.

resultsHGF and bFGF expression was significantly higher at baseline in the CT-26 tumor-bearing mice when compared with non-tumor-bearing controls (P = 0.00001 and P = 9 x 10, respectively). There was an increase in HGF and bFGF expression at 24 hours (P = 0.005, and P = 0.001) in the PH group. In the RFA group, there was a decrease in HGF and bFGF expression at 24 and 72 hours (P = 0.001 and P = 0.002). Tumor growth comparisons revealed an increase in tumor growth in the hepatectomy group (P = 0.006) but not the RFA group (P = 0.2).

conclusionsBaseline growth factor expression in tumor-bearing mice is exponentially higher when compared with non-tumor-bearing controls. HGF and bFGF expression are increased posthepatectomy, and decreased post-RFA. Partial hepatectomy results in an increase in tumor growth in the residual liver. RFA did not increase tumor growth after treatment. While hepatectomy is the only curative option for patients with hepatic malignancies, it may accelerate growth of microscopic residual disease.

Indexed as

Catheter AblationHepatectomyAdenocarcinomaAnimalsFemaleFibroblast Growth Factor 2Hepatocyte Growth FactorLiver NeoplasmsMiceMice, Inbred BALB CNeoplasm, ResidualTumor BurdenFibroblast Growth Factor 2Hepatocyte Growth Factor

Identifiers

PMID17457170
PMCPMC1877067
OpenAlexW1969571720

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.