Evidence map›Paper›PMID 39676618›Full record

ArticleAnaesthesia2025

Total intravenous or inhalational volatile anaesthesia and survival after colorectal cancer surgery: a Swedish national registry study.

Anna Enlund, Maziar Nikberg, Anders Berglund, Erland Östberg, Mats Enlund

Abstract read
In one paragraph

Article in Anaesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

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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

5 authors.

Anna EnlundDepartment of Anaesthesia and Intensive Care, Vastmanland Hospital, Vasteras, Sweden.
Maziar NikbergCentre for Clinical Research, Uppsala University, Vastmanland Hospital, Vasteras, Sweden.
Anders BerglundEpistat AB, Uppsala, Sweden.
Erland ÖstbergDepartment of Anaesthesia and Intensive Care, Vastmanland Hospital, Vasteras, Sweden.
Mats EnlundCentre for Clinical Research, Uppsala University, Vastmanland Hospital, Vasteras, Sweden.ORCID 0000-0001-9911-3029

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionRetrospective studies suggest that inhalational volatile anaesthetic agents may contribute to an increased risk of metastasis and reduction in survival rates when used during cancer surgery. This relationship may vary between cancer types due to different tumour biology and differences in surgical procedures. This study aimed to investigate the relationship between the type of anaesthetic used for maintenance of anaesthesia (propofol or inhalational volatile anaesthetic agent) and survival in patients with stage 1-3 colorectal cancer who underwent resection surgery under general anaesthesia in Sweden between 2014 and 2019.

methodsWe identified patients from the Swedish Colorectal Cancer Registry. Their data, including cancer characteristics and adjuvant treatment, were then merged with information from the Swedish Peri-operative Registry. The primary outcome was overall survival, with disease-free survival as a secondary outcome.

resultsOf the 11,598 patients included, 8161 had colon cancer and 3437 had rectal cancer. General anaesthesia was maintained with propofol in 2346 (20%) patients, while 9252 (80%) received an inhalational volatile anaesthetic agent. In the unmatched cohort, patients who had general anaesthesia maintained with propofol for colon cancer surgery showed improved survival compared with those receiving an inhalational volatile anaesthetic agent (hazard ratio 0.83, 95%CI 0.72-0.95, p = 0.008). After 1:2 propensity score matching, we observed no significant difference in survival rates in this group (hazard ratio 0.89, 95%CI 0.76-1.04, p = 0.127). In the rectal cancer group, there was no difference in survival in either the unmatched cohort (hazard ratio 0.83, 95%CI 0.65-1.08, p = 0.166) or after propensity score matching (hazard ratio 0.95, 95%CI 0.71-1.25, p = 0.702). There was no significant difference in disease-free survival in either type of cancer. DISCUSSION: We found no association between the choice of agent for maintenance of anaesthesia and long-term survival outcomes in patients with colorectal cancer.

Indexed as

Anesthesia, InhalationAnesthesia, IntravenousAnesthetics, InhalationAnesthetics, IntravenousColorectal NeoplasmsAdultAgedAged, 80 and overAnesthesia, GeneralFemaleHumansMaleMiddle AgedPropofolRegistriesRetrospective StudiesAnesthetics, InhalationAnesthetics, IntravenousPropofolanaesthesiainhalationintravenousneoplasmssurvival analysis

Identifiers

PMID39676618
PMCPMC11885090

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LicenceCC BY-NC-ND
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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.