ArticleIndian journal of anaesthesia2023
Impact of general or regional anaesthesia on recurrence of colorectal cancer after surgery: Systematic review.
Article in Indian journal of anaesthesia, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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.
Who cites it
2 citing papers in PubMed, 2 citations in OpenAlex.
- Comparison of Recurrence of Malignancy Following Two Opioid-free General Anesthesia Regimens versus Standard Care Using Opioids: A Retrospective Analysis.Annals of African medicine · 2026Article
- Trial sequential analysis: Quality improvement for meta-analysis.Indian journal of anaesthesia · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and Aims: Studies have suggested that anaesthetic agents have modulatory effects on the immune system, leading to cancer recurrence. The association between colorectal cancer (CRC) recurrence and anaesthesia is still unclear. Therefore, this systematic review aimed to determine the association between the recurrence of CRC after surgery and anaesthesia. Methods: A database search of PubMed, Cochrane, Embase, and Scopus was performed for articles on the recurrence of CRC after surgeries under general anaesthesia (GA) and regional anaesthesia (RA), published between January 2002 and January 2023. Qualitative and risk-of-bias assessment of retrospective studies was performed using the Newcastle-Ottawa scale (NOS). Synthesis Without Meta-analysis guidelines were used to report data synthesis. The primary outcome was cancer recurrence, and the secondary outcomes were disease-free survival (DFS) and overall survival. The standardised metric to represent data synthesis was the median hazard ratio (HR). Evidence quality was rated as per GRADE pro-GDT. Results: A total of six retrospective cohorts were identified through the literature search for inclusion. The risk of bias was low in all studies and was rated good quality as per the NOS. The pooled risk ratio for cancer recurrence in the two studies was 1.04, 95% confidence interval 0.98-1.10 ( Conclusion: No conclusive association was found between regional anaesthesia and colorectal cancer recurrence. However, due to a lack of studies reporting cancer recurrence and less data for comparison and different intervention groups, a conclusive association cannot be made.
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Registered trials
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