Hepatic resection in Canada: rates and geographic variation.

Ryan J McColl, Balpreet Brar, William A Ghali, Elijah Dixon

Abstract readComparative Study

In one paragraph

Article in Canadian journal of surgery. Journal canadien de chirurgie, 2009. 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.

Medial open transversus abdominis plane (MOTAP) catheters for analgesia following open liver resection: study protocol for a randomized controlled trial.Trials · 2014
Trial
Laparoscopic versus open hepatic resection in patients ≥75 years old: A NSQIP analysis evaluating 2674 patients.Journal of surgical oncology · 2024
Article
Phlebotomy resulting in controlled hypovolemia to prevent blood loss in major hepatic resections (PRICE-2): study protocol for a phase 3 randomized controlled trial.Trials · 2023
Article
Tranexamic acid versus placebo to reduce perioperative blood transfusion in patients undergoing liver resection: protocol for the haemorrhage during liver resection tranexamic acid (HeLiX) randomised controlled trial.BMJ open · 2022
Article
Red blood cell transfusion in liver resection.Langenbeck's archives of surgery · 2019
Review
Regional variation in the use of surgery in Ontario.CMAJ open
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

4 authors.

Ryan J McCollDepartment of Surgery University of Calgary, Calgary, Alta..

Balpreet Brar

William A Ghali

Elijah Dixon

Funding

Canadian Institutes of Health Research

6 · The paper itself

Abstract

backgroundLiver resection (LR) is the only curative therapy for hepatic malignancy. Despite this, the rates of LR across Canada are unknown. We sought to determine the rate and regional variation of LR in Canada, its provinces and census divisions for the period 1995-2004.

methodsWe obtained discharge data for 1995-2004 from all provinces but Quebec from the Canadian Institute for Health Information, and we searched for LR by residential site. Then we calculated rates and variations in rates.

resultsThe national age- and sex-adjusted rate of LR per 100,000 people aged 18 years and older increased from 3.22 in 1995 to 5.86 in 2004. There was a high degree of variation across provinces and census divisions.

conclusionLiver resection volumes are increasing in Canada. Significant regional variation exists for LR in Canada, likely reflecting a variety of important supply-demand issues.

Indexed as

CanadaHepatectomyHumansLiverLiver Neoplasms

Identifiers

PMID20011162

PMCPMC2792413

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.