Evidence map›Paper›PMID 31615457›Full record

ArticleBMC cancer2019

Lymph node ratio as valuable predictor in pancreatic cancer treated with R0 resection and adjuvant treatment.

Min Su You, Sang Hyub Lee, Young Hoon Choi, Bang-Sup Shin, Woo Hyun Paik, Ji Kon Ryu, Yong-Tae Kim, Dong Kee Jang, Jun Kyu Lee, Wooil Kwon and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Robotic-assisted pancreaticoduodenectomy: Portal vein-first vs artery-first approach.Journal of the Chinese Medical Association : JCMA · 2026
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  7. A logistic regression model to predict long-term survival for borderline resectable pancreatic cancer patients with upfront surgery.Cancer imaging : the official publication of the International Cancer Imaging Society · 2025
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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

12 authors at 2 institutions in 1 country.

Min Su YouDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
Sang Hyub LeeDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea. gidoctor@snuh.org.ORCID http://orcid.org/0000-0001-8775-6131
Young Hoon ChoiDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
Bang-Sup ShinDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
Woo Hyun PaikDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
Ji Kon RyuDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
Yong-Tae KimDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 03080, Seoul, Republic of Korea.
Dong Kee JangDepartment of Internal Medicine, Dongguk University Ilsan Hospital, Gyeonggi-do, Goyang-si, South Korea.
Jun Kyu LeeDepartment of Internal Medicine, Dongguk University Ilsan Hospital, Gyeonggi-do, Goyang-si, South Korea.
Wooil KwonDepartment of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea.
Jin-Young JangDepartment of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea.
Sun-Whe KimDepartment of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea.
Seoul National University Hospital · KRDongguk University Ilsan Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLymph-node (LN) metastasis is an important prognostic factor in resected pancreatic cancer. In this study, the prognostic value of American Joint Committee on Cancer (AJCC) 8th edition N stage, lymph-node ratio (LNR), and log odds of positive lymph nodes (LODDS) in resected pancreatic cancer was investigated.

methodsBetween January 2005 and December 2017, there were 351 patients with pancreatic cancer treated with R0 resection and adjuvant therapy at Seoul National University Hospital. Relationships between the three LN parameters and overall survival (OS) and recurrence-free survival (RFS) were evaluated using a log-rank test and Cox proportional hazard regression model. Each multivariate-adjusted LN parameter was internally validated by bootstrap-corrected Harrell's C-index.

resultsThe mean duration from surgery to adjuvant therapy was 47.6 ± 17.4 days. In total, the median OS and RFS was 31.7 (95% CI, 27.2-37.2) and 15.4 (95% CI, 13.5-17.7) months. The three LN classification systems were significantly correlated with OS and RFS in log-rank tests and multivariate-adjusted models (all p < 0.05). When internally validated, LNR showed the highest discrimination ability in predicting OS and RFS (each C-index = 0.65). LNR also showed the highest C-index in subgroup analysis, classified by adjuvant therapy modality. LNR and the AJCC 8th edition LN classification system were significantly associated with loco-regional recurrence (p = 0.026 and p = 0.027, respectively).

conclusionsLNR, which showed the best prognostic performance and significant relationship with loco-regional recurrence, can help further stratify the patients and establish an active treatment plan.

Indexed as

Chemotherapy, AdjuvantLymph Node ExcisionLymph Node RatioRadiotherapy, AdjuvantAgedDisease-Free SurvivalFemaleFollow-Up StudiesHospitals, UniversityHumansKaplan-Meier EstimateKoreaLymphatic MetastasisMaleMiddle AgedNeoplasm Recurrence, LocalAdjuvant therapyLymph nodesMetastasisPancreatic cancerPrognosis

Identifiers

PMID31615457
PMCPMC6794802
OpenAlexW2981017562

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LicenceCC BY
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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.