Evidence map›Paper›PMID 31673537›Full record

ArticleHepatobiliary surgery and nutrition2019

Development and validation of a nomogram for survival benefit of lymphadenectomy in resected gallbladder cancer.

Mingyu Chen, Jian Lin, Jiasheng Cao, Hepan Zhu, Bin Zhang, Angela Wu, Xiujun Cai

Abstract read
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Article in Hepatobiliary surgery and nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

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12citing papers in PubMed, 1 pooled it
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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

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3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Mingyu ChenDepartment of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China.
Jian LinLongyou People's Hospital, Quzhou 324400, China.
Jiasheng CaoDepartment of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China.
Hepan ZhuDepartment of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China.
Bin ZhangDepartment of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China.
Angela WuMedicine, University of Melbourne, Melbourne, VIC, Australia.
Xiujun CaiDepartment of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to absence of large, prospective, randomized, clinical trial data, the potential survival benefit of lymphadenectomy with different number of regional lymph nodes (LNs) remains controversial. We aim to create a predicting model to help estimate individualized potential survival benefit of lymphadenectomy with more regional LNs for patients with resected gallbladder cancer (GBC).

methodsPatients with resected GBC were selected from the Surveillance, Epidemiology, and End Results database who were diagnosed between 2004 and 2014. Covariates included age, race, sex, grade, histological stage, tumor sizes and receipt of non-primary surgery. Two types of multivariate survival regression models were constructed and compared. The best model performance was tested by the external validation data from our hospital.

resultsA total of 1,669 patients met the inclusion criteria for this study. The lognormal survival model showed the best performance and was tested by the external validation data, including 193 patients with resected GBC from our hospital. Nomograms, which based on the accelerated failure time parametric survival model, were built to estimate individualized survival. C-index, was up to 0.754 and 0.710 in internal validation for more and less regional LNs removed, respectively. Both of internal and external calibration curves showed good agreement between predicted and observed outcomes in the 1-, 3-, and 5-year overall survival (OS).

conclusionsA predicting model can be used as a decision model to predict which patients may obtain benefit from lymphadenectomy with more regional LNs.

Indexed as

Gallbladder cancer (GBC)lymphadenectomynomogramoverall survival (OS)predicting model

Identifiers

PMID31673537
PMCPMC6791978

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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.