Evidence map›Paper›PMID 32291503›Full record

ArticleWorld journal of surgery2020

Role of Conversion Surgery for Unresectable Pancreatic Cancer After Long-Term Chemotherapy.

Nobuhiro Tsuchiya, Ryusei Matsuyama, Takashi Murakami, Yasuhiro Yabushita, Yu Sawada, Takafumi Kumamoto, Itaru Endo

Abstract read
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In one paragraph

Article in World journal of surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.7field-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

5 citing papers in PubMed, 22 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Nobuhiro TsuchiyaDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Ryusei MatsuyamaDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Takashi MurakamiDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Yasuhiro YabushitaDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Yu SawadaDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Takafumi KumamotoDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Itaru EndoDepartment of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan. endoit@yokohama-cu.ac.jp.
Yokohama City University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnresectable pancreatic cancer (UR-PC) has a poor prognosis. Although conversion surgery has been considered a promising strategy for improving prognosis in UR-PC, the clinical benefit offered to patients with UR-PC remains controversial. This study aimed to investigate the clinical benefits of conversion surgery in patients with UR-PC.

methodsWe evaluated patients with UR-PC referred to our department for possible surgical resection between January 2008 and June 2017. Resectability was evaluated using multimodal imaging in patients who underwent chemotherapy for more than 6 months. Conversion surgery was performed only in patients who were judged eligible for R0 resection.

resultsIn total, 90 patients were evaluated. Among them, only 22 (24.4%) could actually undergo conversion surgery, and the R0 resection rate was 72.7% (16/22). Although Evans grade ≥ IIB was noted in six patients (27.3%), none achieved complete response (CR). The median survival time was significantly longer among patients who underwent conversion surgery than in the unresected patients who underwent chemotherapy (21.3 months vs. 12.6 months; p < 0.001). Multivariate and Kaplan-Meier analyses revealed microvascular invasion to have a significant adverse effect on recurrence-free survival (RFS: 7 months vs. not reached, p = 0.004) and overall survival (OS: 21 months vs. 85 months, p = 0.047).

conclusionsAfter long-term chemotherapy, conversion surgery for UR-PC is associated with long-term survival. Microvascular invasion is predictive of poor prognosis in these patients; adjuvant protocols are therefore needed for patients with microvascular invasion.

Indexed as

PancreatectomyPancreaticoduodenectomyAgedAlbuminsAntineoplastic Combined Chemotherapy ProtocolsCombined Modality TherapyDeoxycytidineDrug CombinationsFemaleFluorouracilGemcitabineHumansIrinotecanKaplan-Meier EstimateLeucovorinLymph Node Excision130-nm albumin-bound paclitaxelAlbuminsDeoxycytidineDrug CombinationsFluorouracilfolfirinoxGemcitabineIrinotecanLeucovorinOxaliplatinOxonic AcidPaclitaxelPyridinesS 1 (combination)Tegafurtegafur-gimeracil-oteracil

Identifiers

PMID32291503
OpenAlexW3015739600

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.