Evidence map›Paper›PMID 33657212›Full record

ArticleBlood2021

Reduced calf muscle pump function is a risk factor for venous thromboembolism: a population-based cohort study.

Damon E Houghton, Aneel Ashrani, David Liedl, Ramila A Mehta, David O Hodge, Thom Rooke, Paul Wennberg, Waldemar Wysokinski, Robert McBane

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Calf Muscle Vein Thrombosis After Hip and Lower-Limb Fracture Surgery: A Systematic Review and Meta-Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  3. Which Frequency of Ankle Pump Exercise Should Be Chosen for the Prophylaxis of Deep Vein Thrombosis?Inquiry : a journal of medical care organization, provision and financing
    Trial
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  18. Reduced calf muscle pump function is not explained by handgrip strength measurements.Journal of vascular surgery. Venous and lymphatic disorders · 2024
    Article
  19. Hand grip strength in venous thromboembolism: risk of recurrence and mortality.Research and practice in thrombosis and haemostasis · 2023
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Damon E HoughtonDivision of Vascular Medicine, Department of Cardiovascular Diseases.ORCID 0000-0002-6065-9523
Aneel AshraniDivision of Hematology/Oncology, Department of Internal Medicine.
David LiedlGonda Vascular Center, and.
Ramila A MehtaDivision of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN; and.
David O HodgeDepartment of Health Sciences Research, Mayo Clinic, Jacksonville, FL.
Thom RookeDivision of Vascular Medicine, Department of Cardiovascular Diseases.
Paul WennbergDivision of Vascular Medicine, Department of Cardiovascular Diseases.
Waldemar WysokinskiDivision of Vascular Medicine, Department of Cardiovascular Diseases.
Robert McBaneDivision of Vascular Medicine, Department of Cardiovascular Diseases.
Center for Vascular Biology Research · USMayo Clinic in Florida · US

Funding

RISK FACTORS FOR VENOUS THROMBOEMBOLISM IN THE COMMUNITYR01HL066216 · NHLBI · MAYO CLINIC ROCHESTER · PI ASHRANI, ANEEL ARJUN, BAILEY, KENT R · 2001 to 2019
$10.4M
Rochester Epidemiology ProjectR01AG034676 · NIA · MAYO CLINIC ROCHESTER · PI ROCCA, WALTER A, ST SAUVER, JENNIFER LYNN · 2010 to 2019
$9.5M
NHLBI NIH HHS R01 HL066216NIA NIH HHS R01 AG034676
6 · The paper itself

Abstract

The calf muscle pump is a major determinate of venous return in the legs but has not been studied as a risk factor for venous thromboembolism (VTE). A population-based cohort study of Olmsted County, Minnesota residents was performed using calf pump function (CPF) measurements from venous plethysmography studies from 1998 to 2015. Patients with a history of VTE were excluded. Nursing validated VTE outcomes from the Rochester Epidemiology Project were identified after the index study date, and patients with reduced CPF (rCPF) were compared with patients with normal CPF. A total of 1532 patients with recorded CPF (28% air and 72% strain gauge plethysmography) were included; 591 (38.5%) had normal CPF, 353 (23.0%) had unilateral rCPF, and 588 (38.3%) had bilateral rCPF. Any VTE occurred in 87 patients (5.7%) after a median follow-up of 11.7 years (range, 0-22.0 years). Comparing patients with bilateral reduced to bilateral normal CPF, the unadjusted hazard ratio (HR) for incident VTE was 2.0 (95% confidence interval [CI], 1.2-3.4) and after adjusting for age, BMI, and Charlson Comorbidity Index, the HR was 1.68 (95% CI, 0.98-2.89). The adjusted HR for ipsilateral deep vein thrombosis was evaluated in 3064 legs comparing legs with reduced to normal CPF and was 1.71 (95% CI, 1.03-2.84). Mortality was significantly higher in both the bilateral (P < .001) and unilateral (P < .001) rCPF groups compared with normal CPF. Our results demonstrate that CPF is a risk factor for VTE in an otherwise low-risk ambulatory population and might be a useful component in risk stratification models.

Indexed as

Models, CardiovascularVenous ThromboembolismVenous ThrombosisAgedAged, 80 and overFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedMuscle, SkeletalPlethysmographycalf pump functionCOAGULATION/Thrombotic Disorders and Therapiesdeep vein thrombosisvenous thromboembolismvenous thrombosis

Identifiers

PMID33657212
PMCPMC8351902
OpenAlexW3135841811

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.