Evidence map›Paper›PMID 33861298›Full record

SynthesisBlood advances2021

Extended thromboprophylaxis for medically ill patients with cancer: a systemic review and meta-analysis.

Soravis Osataphan, Rushad Patell, Thita Chiasakul, Alok A Khorana, Jeffrey I Zwicker

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Blood advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. SEOM clinical guidelines on venous thromboembolism (VTE) and cancer (2023).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Guideline
  2. Antithrombotic therapy for cancer-associated venous thromboembolism.Clinical research in cardiology : official journal of the German Cardiac Society · 2026
    Review
  3. Review
  4. Review
  5. A Three-year Retrospective Study Looking at Preventing Hospital Acquired Thrombosis.Cardiovascular & hematological agents in medicinal chemistry · 2024
    Article
  6. Review
  7. Review
  8. Emerging Insights of Management of Venous Thromboembolism in Patients With Cancer.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    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

5 authors at 4 institutions in 2 countries.

Soravis OsataphanDepartment of Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA.
Rushad PatellDivision of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
Thita ChiasakulDivision of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
Alok A KhoranaDepartment of Hematology and Medical Oncology, Taussig Cancer Institute and Case Comprehensive Cancer Center, Cleveland Clinic, Cleveland, OH.
Jeffrey I ZwickerDivision of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
Beth Israel Deaconess Medical Center · USCleveland Clinic · USMount Auburn Hospital · USThai Red Cross Society · TH

Funding

Biomarkers and mechanisms in cancer associated thrombosisU01HL143365 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI CHAIKOF, ELLIOT, FLAUMENHAFT, ROBERT C · 2018 to 2022
$4.3M
NHLBI NIH HHS U01 HL143365
6 · The paper itself

Abstract

Hospitalized medically ill patients with cancer are at increased risk of both venous thromboembolism and bleeding. The safety and efficacy of extended thromboprophylaxis in patients with cancer are unclear. We conducted a systematic review and meta-analysis of the literature using of MEDLINE, EMBASE, and the Cochrane CENTRAL databases to identify cancer subgroups enrolled in randomized controlled trials evaluating extended thromboprophylaxis following hospitalization. The primary outcomes were symptomatic and incidental venous thromboembolic events and hemorrhage (major hemorrhage and clinically relevant nonmajor bleeding). Four randomized controlled trials reported the outcomes of extended thromboprophylaxis in 3655 medically ill patients with active or history of cancer. The rates of venous thromboembolic events were similar between the extended-duration and standard-duration groups (odds ratio [OR], 0.85; 95% confidence interval [CI], 0.61-1.18; I2 = 0%). However, major and clinically relevant nonmajor bleeding occurred significantly more frequently in the extended-duration thromboprophylaxis group (OR, 2.10; 95% CI, 1.33-3.35; I2 = 8%). Extended thromboprophylaxis in hospitalized medically ill patients with cancer was not associated with a reduced rate of venous thromboembolic events but was associated with increased risk of hemorrhage. This study protocol was registered on PROSPERO as #CRD42020209333.

Indexed as

NeoplasmsVenous ThromboembolismVenous ThrombosisAnticoagulantsHemorrhageHumansAnticoagulants

Identifiers

PMID33861298
PMCPMC8095131
OpenAlexW3155423667

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.