Evidence map›Paper›PMID 33641017›Full record

ArticleEsophagus : official journal of the Japan Esophageal Society2021

Early detection of anastomotic leakage after esophagectomy using drain amylase levels.

Tomohiro Matsumoto, Hirotoshi Kikuchi, Ryoma Haneda, Wataru Soneda, Amane Hirotsu, Sanshiro Kawata, Yoshihiro Hiramatsu, Kinji Kamiya, Yosuke Shibata, Eisaku Okada and 1 more

Abstract read
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In one paragraph

Article in Esophagus : official journal of the Japan Esophageal Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 33% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. International Society for Diseases of the Esophagus consensus on the diagnosis and treatment of anastomotic leak after esophagectomy.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2026
    Guideline
  2. Article
  3. 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

11 authors at 1 institution in 1 country.

Tomohiro MatsumotoDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Hirotoshi KikuchiDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Ryoma HanedaDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Wataru SonedaDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Amane HirotsuDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Sanshiro KawataDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Yoshihiro HiramatsuDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Kinji KamiyaDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Yosuke ShibataDepartment of Community Health and Preventive Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Eisaku OkadaDepartment of Community Health and Preventive Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan.
Hiroya TakeuchiDepartment of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi‑ku, Hamamatsu, Shizuoka, 431‑3192, Japan. takeuchi@hama-med.ac.jp.
Hamamatsu University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEarly diagnosis of anastomotic leakage (AL) after esophagectomy is essential to minimize postoperative complications. In this study, we hypothesized that drain amylase levels may be useful for early AL detection, and measuring drain amylase levels could reduce severe postoperative AL incidence. We, therefore, analyzed the usefulness of measuring drain fluid amylase levels after esophagectomy, in esophageal cancer patients.

methodsFrom January 2016 to March 2020, 134 patients with esophageal cancer who underwent surgical resection with esophagogastric anastomosis in the cervical region were included. The patients were divided into a group whose cervical drain fluid amylase levels were not measured (No-AMY Group) and a group whose cervical drain fluid amylase levels were measured daily until postoperative day (POD) 7 (AMY Group). The incidence of severe AL was compared between groups. In the AMY Group, we also investigated the association between AL and drain amylase levels.

resultsDrain amylase levels were significantly higher in AL-positive cases than in AL-negative cases (P < 0.001). Receiver operating characteristic curve analysis revealed the drain amylase level cut-off value for AL diagnosis was 1800 U/L on POD 2 (Area under the curve = 0.835; P = 0.027). The incidence of ≥ grade III AL was significantly lower in the AMY Group than in the No-AMY Group (2 vs. 10%, P = 0.047).

conclusionsCervical drain fluid amylase levels can be a useful screening method for early detection of AL after esophagectomy for esophageal cancer and may help reduce incidence of severe postoperative AL.

Indexed as

Anastomotic LeakEsophagectomyAmylasesDrainageEarly Detection of CancerHumansAmylasesAmylaseAnastomotic leakageEsophageal cancer

Identifiers

PMID33641017
OpenAlexW3135660153

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.