Evidence map›Paper›PMID 33201280›Full record

Observational studyEuropean radiology2021

Aortic calcification is associated with non-infective rather than infective postoperative complications following colorectal cancer resection: an observational cohort study.

Katrina A Knight, Chui Hon Fei, Kate F Boland, Daniel R Dolan, Allan M Golder, Donald C McMillan, Paul G Horgan, Douglas H Black, James H Park, Campbell S D Roxburgh

Erratum issuedOpen access · greenAbstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in European radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Katrina A KnightAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK. Katrina.Knight@glasgow.ac.uk.ORCID http://orcid.org/0000-0002-0300-546X
Chui Hon FeiSchool of Medicine, Wolfson Medical School Building, University of Glasgow, Glasgow, G12 8QQ, UK.
Kate F BolandSchool of Medicine, Wolfson Medical School Building, University of Glasgow, Glasgow, G12 8QQ, UK.
Daniel R DolanSchool of Medicine, Wolfson Medical School Building, University of Glasgow, Glasgow, G12 8QQ, UK.
Allan M GolderAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK.
Donald C McMillanAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK.
Paul G HorganAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK.
Douglas H BlackAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK.
James H ParkAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK.
Campbell S D RoxburghAcademic Unit of Colorectal Surgery, University of Glasgow, Level 2, New Lister Building, Glasgow Royal Infirmary, 10 - 16 Alexandra Parade, Glasgow, G31 2ER, UK.
Glasgow Royal Infirmary · GBUniversity of Glasgow · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesComplications following colorectal cancer resection are common. The degree of aortic calcification (AC) on CT has been proposed as a predictor of complications, particularly anastomotic leak. This study assessed the relationship between AC and complications in patients undergoing colorectal cancer resection.

methodsPatients from 2008 to 2016 were retrospectively identified from a prospectively maintained database. Complications were classified using the Clavien-Dindo (CD) scale. Calcification was quantified on preoperative CT by visual assessment of the number of calcified quadrants in the proximal and distal aorta. Scores were grouped into categories: none, minor (< median AC score) and major (> median AC score). The relationship between clinicopathological characteristics and complications was assessed using logistic regression.

resultsOf 657 patients, 52% had proximal AC (> median score (1)) and 75% had distal AC (> median score (4)). AC was more common in older patients and smokers. Higher burden of AC was associated with non-infective complications (proximal AC 28% vs 16%, p = 0.004, distal AC 26% vs 14% p = 0.001) but not infective complications (proximal AC 28% vs 29%, p = 0.821, distal AC 29% vs 23%, p = 0.240) or anastomotic leak (proximal AC 6% vs 4%, p = 0.334, distal AC 7% vs 3%, p = 0.077). Independent predictors of complications included open surgery (OR 1.99, 95%CI 1.43-2.79, p = 0.001), rectal resection (OR 1.51, 95%CI 1.07-2.12, p = 0.018) and smoking (OR 2.56, 95%CI 1.42-4.64, p = 0.002).

conclusionsThese data suggest that high levels of AC are associated with non-infective complications after colorectal cancer surgery and not anastomotic leak. KEY POINTS: • Aortic calcification measured by visual quantification of the number of calcified quadrants at two aortic levels on preoperative CT is associated with clinical outcome following colorectal cancer surgery. • An increased burden of aortic calcification was associated with non-infective complications but not anastomotic leak. • Assessment of the degree of aortic calcification may help identify patients at risk of cardiorespiratory complications, improve preoperative risk stratification and assign preoperative strategies to improve fitness for surgery.

Indexed as

Anastomotic LeakColorectal NeoplasmsAgedColectomyHumansPostoperative ComplicationsRetrospective StudiesRisk FactorsCalcification, physiologicColorectal neoplasmsDigestive system surgical procedures

Identifiers

PMID33201280
OpenAlexW3089675824

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.