Evidence map›Paper›PMID 34750709›Full record

ArticleSurgical endoscopy2022

Selection criteria for minimally invasive resection of intrahepatic cholangiocarcinoma-a word of caution: a propensity score matched analysis using the national cancer database.

Omid Salehi, Vera Kazakova, Eduardo A Vega, Onur C Kutlu, Sylvia V Alarcon, Richard Freeman, Olga Kozyreva, Claudius Conrad

Abstract read
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 3 pooled it
1.9field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 3 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Lymph Node Dissection in Intrahepatic Cholangiocarcinoma: a Critical and Updated Review of the Literature.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Review
  7. Article
  8. 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

8 authors at 2 institutions in 1 country.

Omid SalehiDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, 11 Nevins St., Suite 201, Brighton, MA, 02135, USA.
Vera KazakovaDepartment of Medicine, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA.
Eduardo A VegaDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, 11 Nevins St., Suite 201, Brighton, MA, 02135, USA.
Onur C KutluDepartment of Medicine, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA.
Sylvia V AlarconDepartment of Surgery, Miller School of Medicine, University of Miami Health System, Miami, FL, USA.
Richard FreemanDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, 11 Nevins St., Suite 201, Brighton, MA, 02135, USA.
Olga KozyrevaDepartment of Surgery, Miller School of Medicine, University of Miami Health System, Miami, FL, USA.
Claudius ConradDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, 11 Nevins St., Suite 201, Brighton, MA, 02135, USA. claudius.conrad@steward.org.ORCID http://orcid.org/0000-0001-8802-1188
Tufts University · USUniversity of Miami Health System · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile minimally invasive liver resection (MILR) vs. open approach (OLR) has been shown to be safe, the perioperative and oncologic safety for intrahepatic cholangiocarcinoma (ICC) specifically, necessitating often complex hepatectomy and extended lymphadenectomy, remains ill-defined.

methodsThe National Cancer Database was queried for patients with ICC undergoing liver resection from 2010 to 2016. After 1:1 Propensity Score Matching (PSM), Kruskal-Wallis and χ

results988 patients met inclusion criteria: 140 (14.2%) MILR and 848 (85.8%) OLR resulting in 115 patients MILR and OLR after 1:1 PSM with c-index of 0.733. MILR had lower unplanned 30-day readmission [OR 0.075, P = 0.014] and positive margin rates [OR 0.361, P = 0.011] and shorter hospital length of stay (LOS) [OR 0.941, P = 0.026], but worse lymph node yield [1.52 vs 2.07, P = 0.001]. No difference was found for 30/90-day mortality. Moreover, multivariate analysis revealed that MILR was associated with poorer overall survival compared to OLR [HR 2.454, P = 0.001]. Subgroup analysis revealed that survival differences from approach were dependent on major hepatectomy, tumor size > 4 cm, or negative margins.

conclusionMILR vs. OLR is associated with worse lymphadenectomy and survival in patients with ICC greater than 4 cm requiring major hepatectomy. Hence, MILR major hepatectomy for ICC should only be approached selectively and if surgeons are able to perform an appropriate lymphadenectomy.

Indexed as

Bile Duct NeoplasmsCarcinoma, HepatocellularCholangiocarcinomaLaparoscopyLiver NeoplasmsBile Ducts, IntrahepaticHepatectomyHumansPatient SelectionPropensity ScoreRetrospective StudiesIntrahepatic cholangiocarcinomaLaparoscopic liver resectionNCDBOncologic outcomesOpen liver resectionPerioperative outcomes

Identifiers

PMID34750709
OpenAlexW3211631739

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.