Evidence map›Paper›PMID 30479624›Full record

ArticleJournal of contemporary brachytherapy2018

Experimental study of pelvic perioperative brachytherapy with iodine 125 seeds (I-125) in an animal model.

Thomas Brun, Gwenael Ferron, Thomas Filleron, Jacques Bonnet, Alejandra Martinez, Anne Ducassou, Fabien Corbiere, Martine Delannes

Open access · goldAbstract read
In one paragraph

Article in Journal of contemporary brachytherapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 28% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. ExtracranialFrontiers in neuroscience · 2021
    Article
  2. Success ofOncoTargets and therapy · 2020
    Article
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

8 authors at 2 institutions in 1 country.

Thomas BrunDepartment of Engineering and Medical Physics, Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle.
Gwenael FerronDepartment of Surgery, Inserm CRCT 19 (OncoSARC), Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle.
Thomas FilleronInstitut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle, Clinical Trials Office.
Jacques BonnetDepartment of Engineering and Medical Physics, Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle.
Alejandra MartinezDepartment of Surgery, Inserm CRCT 19 (OncoSARC), Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle.
Anne DucassouDepartment of Radiotherapy, Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle.
Fabien CorbiereInstitut National Polytechnique de Toulouse/Ecole Nationale Véterinaire de Toulouse UMR, Toulouse, France.
Martine DelannesDepartment of Radiotherapy, Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse - Oncopôle.
Institut Claudius Regaud · FRInstitut National Polytechnique de Toulouse · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study is to investigate the feasibility of perioperative I-125 low-dose-rate brachytherapy mesh implantation in pelvic locations in an animal model, before applying it clinically. MATERIAL AND

methodsThe animal model was the Romanov adult ewe. Non-radioactive dummy I-125 seeds were implanted by laparotomy in the pelvic area. Forty-five dummy seeds were placed on a 10 cm² polyglactin mesh to obtain a dose of 160 Gy at 5 mm from the center of each seed. Three CT scans were performed at day 15, day 70, and day 180 after surgery to check the positioning of the mesh for eventual seed migration according to bony landmarks and to perform a 3D theoretical dosimetric study. The experimental study design was based on Simon's minimax plan with a preliminary analysis of 10 ewes to validate the protocol and a second series of 7 ewes.

resultsAfter the first step, 9 of 10 ewes were investigated. For 8 of 9 animals, the 160 Gy isodose line volume was within 10%, showing feasibility of the procedure and allowing 7 more to be added. At the end of the study, 16 of 17 animals were examined. No seeds loss was observed. The volume difference of the 160 Gy isodose line was within 10% in 13 of 16 ewes between the three CT scans. Twelve out of 16 had a coordinate deviation less than or equal to 10 mm on the three axes between the first and the third scans.

conclusionsThese results show the technical feasibility of the pelvic mesh implantation in ewes. A phase I study for patients with locally advanced or recurrent pelvic tumors amenable to surgery, in combination with surgical resection should be possible.

Indexed as

animal modelbrachytherapyI-125 seedspelvic location

Identifiers

PMID30479624
PMCPMC6251451
OpenAlexW2900670888

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.