Systematic review2017

No impact of fish oil supplements on bleeding risk: a systematic review

Begtrup KM, Krag AE, Hvas AM

Danish medical journal · 16 citations

Review labels

Funding not disclosed

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Systematic review (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death

Who paid for it

Funding
Funding not disclosed

Publication

Published
2017-05-01 · Dan Med J · vol. 64 · issue 5
Publisher
National Institutes of Health
Cited
35 citations · more than 92% of similar papers · 2.9× the field average
Impact
Top 10% most cited in its field
References
0 works
Access
Paywalled
Research areas
Trauma, Hemostasis, Coagulopathy, Resuscitation · Hemostasis and retained surgical items · Fatty Acid Research and Health
Keywords
Medicine, Fish oil, Fish <Actinopterygii>, MEDLINE, Environmental health, Fishery
MeSH
humans, blood loss, surgical, postoperative hemorrhage, fish oils, risk assessment, dietary supplements, randomized controlled trials as topic

3 authors

  • Katrine Munk Begtrup
  • Andreas Engel Krag
  • Anne‐Mette Hvas

Abstract

Introduction

Fish oil supplementation may inhibit platelet aggregation and can potentially increase the risk of bleeding. The aim of the present systematic review was to evaluate the effect of fish oil supplements on haemostasis and bleeding risk, and to provide recommendations on whether it is necessary to discontinue fish oil supplementation prior to surgery.

Methods

Studies were identified through PubMed and Embase searches and by reviewing the reference lists of the included papers. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used. Included in the review were publications including a minimum of 20 healthy subjects and studies on patients who were undergoing surgery and who had fish oil exposure.

Results

In total, 52 publications were included; 32 publications on healthy subjects and 20 publications on patients undergoing surgery. The majority of the included studies were randomised controlled trials or included a control group. Overall, fish oil supplements reduced platelet aggregation in healthy subjects. Fish oil exposure in surgical patients did not increase bleeding or blood transfusions either during or after surgery.

Conclusion

Fish oil supplements reduced platelet aggregation in healthy subjects. This biochemical effect was not reflected in increased bleeding risk during or after surgery evaluated in randomised controlled trials. Consequently, this systematic review does not support the need for discontinuation of fish oil supplements prior to surgery or other invasive procedures.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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