Evidence map›Paper›PMID 32440816›Full record

Trial reportInternational orthopaedics2020

Omega-3 fatty acids reduce post-operative risk of deep vein thrombosis and pulmonary embolism after surgery for elderly patients with proximal femoral fractures: a randomized placebo-controlled, double-blind clinical trial.

Xinying Zheng, Rufu Jia, Yuanyuan Li, Tingting Liu, Zhijing Wang

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in International orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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  5. The research progress and potential applications ofThe British journal of nutrition · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Xinying ZhengDepartment of Nursing, Cangzhou Central Hospital, Xinhua West Road, Cangzhou, 061000, Hebei, China.
Rufu JiaDepartment of Nursing, Cangzhou Central Hospital, Xinhua West Road, Cangzhou, 061000, Hebei, China. Hlbzxy2@163.com.
Yuanyuan LiDepartment of Anesthesia of West Hospital, Cangzhou Central Hospital, Xinhua West Road, Cangzhou, 061000, Hebei, China.
Tingting LiuDepartment of Anesthesia of West Hospital, Cangzhou Central Hospital, Xinhua West Road, Cangzhou, 061000, Hebei, China.
Zhijing WangDepartment of Anesthesia of West Hospital, Cangzhou Central Hospital, Xinhua West Road, Cangzhou, 061000, Hebei, China.
Cangzhou Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElderly patients with proximal femoral fractures face elevated risk of post-operative deep vein thrombosis and pulmonary embolism, due to the lack of suitable treatment plans after surgery and hospital discharge. This study aimed to investigate the effect of omega-3 fatty acid supplementation in the above-described clinical setting.

methodsFive hundred and seven elderly patients (> 60 years of age) suffering from proximal femoral fractures were recruited. After exclusion, 452 eligible patients were assigned in a random manner to receive either omega-3 fatty acids at the daily dose of 1000 mg or placebo, via oral administration for a period of 30 days after surgery. At the end of intervention, the incidences of pulmonary embolism, deep vein thrombosis, and other related complications were compared between the two study groups.

resultsIncidences of pulmonary embolism as well as deep vein thrombosis, including events leading to fatality, were significantly reduced by the 30-day omega-3 fatty acid intervention. But other related complications, such as haematoma evacuation, post-operative wound bleed, wound infection with frank pus, and other bleed events that required transfusion, were not affected after omega-3 fatty acid consumption.

conclusionDaily supplementation of omega-3 fatty acids decreases the risk of pulmonary embolism as well as symptomatic deep vein thrombosis, after surgery among elderly patients with proximal femoral fractures, without causing elevated risk of bleeding episodes.

Indexed as

Fatty Acids, Omega-3Femoral FracturesPulmonary EmbolismVenous ThrombosisAgedHemorrhageHumansFatty Acids, Omega-3Deep vein thrombosisOmega-3 fatty acidsPost-operative riskProximal femoral fracturesPulmonary embolism

Identifiers

PMID32440816
OpenAlexW3027768951

What OpenQuestion holds

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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.