Evidence map›Paper›PMID 32700415›Full record

Trial reportBJS open2020

Intermittent pneumatic compression versus additional prophylaxis with enoxaparin for prevention of venous thromboembolism after laparoscopic surgery for gastric and colorectal malignancies: multicentre randomized clinical trial.

H Kamachi, S Homma, H Kawamura, T Yoshida, Y Ohno, N Ichikawa, R Yokota, T Funakoshi, Y Maeda, N Takahashi and 2 more

Open access · goldAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BJS open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 13% 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

9 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. 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

12 authors at 5 institutions in 1 country.

H KamachiDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.ORCID 0000-0003-2742-245X
S HommaDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.
H KawamuraDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.
T YoshidaDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.
Y OhnoDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.
N IchikawaDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.ORCID 0000-0002-8934-9684
R YokotaDepartment of Surgery, Sunagawa City Medical Centre, Sunagawa, Japan.
T FunakoshiDepartment of Surgery, Asahikawa-Kosei General Hospital, Asahikawa, Japan.
Y MaedaDepartment of Gastrointestinal Surgery, National Hospital Organization Hokkaido Cancer Centre, Hokkaido.ORCID 0000-0002-4932-9734
N TakahashiSurgical Centre, Hokkaido, Japan.
T AmanoClinical Research and Medical Innovation Centre, Hokkaido University Hospital, Hokkaido, Japan.
A TaketomiDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.
Hokkaido University · JPAsahikawa Kosei Hospital · JPHokkaido University Hospital · JPNational Hospital Organization Hokkaido Medical Center · JPSunagawa City Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of antithrombotic chemoprophylaxis in prevention of venous thromboembolism (VTE) in laparoscopic surgery for gastric and colorectal malignancies is unknown. This study compared the addition of enoxaparin following intermittent pneumatic compression (IPC) with IPC alone in patients undergoing laparoscopic surgery for gastrointestinal malignancy.

methodsIn this multicentre RCT, eligible patients were older than 40 years and had a WHO performance status of 0 or 1. Exclusion criteria were prescription of antiplatelet or anticoagulant drugs and history of VTE. Patients were allocated to IPC or to ICP with enoxaparin in a 1 : 1 ratio. Stratification factors included sex, location of cancer, age 61 years and over, and institution. Enoxaparin was administered on days 1-7 after surgery. Primary outcome was VTE, evaluated by multidetector CT on day 7.

resultsOf 448 patients randomized, 208 in the IPC group and 182 in the IPC with enoxaparin group were evaluated. VTE occurred in ten patients (4·8 per cent) in the IPC group and six (3·3 per cent) in the IPC with enoxaparin group (P = 0·453). Proximal deep vein thrombosis and/or pulmonary embolism occurred in seven patients (3·4 per cent) in the IPC group and one patient (0·5 per cent) in the IPC with enoxaparin group (P = 0·050). All VTE events were asymptomatic and non-fatal. Bleeding occurred in 11 of 202 patients in the IPC with enoxaparin group, and one patient needed a transfusion. All bleeding events were managed by discontinuation of the drug.

conclusionIPC with enoxaparin after laparoscopic surgery for gastric and colorectal malignancies did not reduce the rate of VTE. Registration number: UMIN000011667 ( https://www.umin.ac.jp/).

Indexed as

Intermittent Pneumatic Compression DevicesAgedAnticoagulantsColorectal NeoplasmsEnoxaparinFemaleHemorrhageHumansLaparoscopyMaleMiddle AgedPostoperative ComplicationsPulmonary EmbolismStomach NeoplasmsVenous ThromboembolismAnticoagulantsEnoxaparin

Identifiers

PMID32700415
PMCPMC7528532
OpenAlexW3044973224

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.