Evidence map›Paper›PMID 25794828›Full record

ArticleAnnals of surgical oncology2015

Peritoneal Tumorigenesis and Inflammation are Ameliorated by Humidified-Warm Carbon Dioxide Insufflation in the Mouse.

Sandra Carpinteri, Shienny Sampurno, Maria-Pia Bernardi, Markus Germann, Jordane Malaterre, Alexander Heriot, Brenton A Chambers, Steven E Mutsaers, Andrew C Lynch, Robert G Ramsay

Open access · hybridAbstract read
In one paragraph

Article in Annals of surgical oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 pooled it
4.4field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Warmed, humidified COAsian journal of endoscopic surgery · 2017
    Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Primary and metastatic peritoneal surface malignancies.Nature reviews. Disease primers · 2021
    Review
  16. Article
  17. Surgical complications in colorectal cancer patients.Annals of medicine and surgery (2012) · 2020
    Review
  18. Article
  19. Article
  20. Review
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

10 authors at 3 institutions in 2 countries.

Sandra CarpinteriCancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Shienny SampurnoCancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Maria-Pia BernardiCancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Markus GermannCancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Jordane MalaterreCancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Alexander HeriotDepartment of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Brenton A ChambersFaculty of Veterinary Science, University of Melbourne, Parkville, VIC, Australia.
Steven E MutsaersLung Institute of Western Australia and Centre for Cell Therapy and Regenerative Medicine, Nedlands, WA, Australia.
Andrew C LynchDepartment of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
Robert G RamsayPeter MacCallum Cancer Centre, Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, Australia. rob.ramsay@petermac.org.
Peter MacCallum Cancer Centre · AUUniversity of Melbourne · AULung Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConventional laparoscopic surgery uses CO2 that is dry and cold, which can damage peritoneal surfaces. It is speculated that disseminated cancer cells may adhere to such damaged peritoneum and metastasize. We hypothesized that insufflation using humidified-warm CO2, which has been shown to reduce mesothelial damage, will also ameliorate peritoneal inflammation and tumor cell implantation compared to conventional dry-cold CO2.

methodsLaparoscopic insufflation was modeled in mice along with anesthesia and ventilation. Entry and exit ports were introduced to maintain insufflation using dry-cold or humidified-warm CO2 with a constant flow and pressure for 1 h; then 1000 or 1 million fluorescent-tagged murine colorectal cancer cells (CT26) were delivered into the peritoneal cavity. The peritoneum was collected at intervals up to 10 days after the procedure to measure inflammation, mesothelial damage, and tumor burden using fluorescent detection, immunohistochemistry, and scanning electron microscopy.

resultsRapid temperature control was achieved only in the humidified-warm group. Port-site tumors were present in all mice. At 10 days, significantly fewer tumors on the peritoneum were counted in mice insufflated with humidified-warm compared to dry-cold CO2 (p < 0.03). The inflammatory marker COX-2 was significantly increased in the dry-cold compared to the humidified-warm cohort (p < 0.01), while VEGFA expression was suppressed only in the humidified-warm cohort. Significantly less mesothelial damage and tumor cell implantation was evident from 2 h after the procedure in the humidified-warm cohort.

conclusionsMesothelial cell damage and inflammation are reduced by using humidified-warm CO2 for laparoscopic oncologic surgery and may translate to reduce patients' risk of developing peritoneal metastasis.

Indexed as

Hot TemperatureAnimalsCarbon DioxideCell Transformation, NeoplasticFemaleHumidityInflammationInsufflationMiceMice, Inbred BALB CPeritoneal NeoplasmsPeritoneumTumor Cells, CulturedCarbon Dioxide

Identifiers

PMID25794828
PMCPMC4687477
OpenAlexW2158042933

What OpenQuestion holds

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Registered trials

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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.