Cited by 43Bariatric Surgery and OutcomesBlood Coagulation and Thrombosis MechanismsBlood properties and coagulation

Effects of obesity surgery on blood coagulation and fibrinolysis: a literature review

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Bladbjerg, Else Marie, Stolberg, Charlotte Røn, Juhl, Claus Bogh·2020·Thrombosis and Haemostasis

Abstract

OBJECTIVE: Obesity is characterized by a disturbed hemostatic balance with increased coagulation and impaired fibrinolysis. This increases the risk of thrombosis, and the risk is lowered after obesity surgery. Over the past 25 years, several studies have contributed to understand the mechanisms behind the antithrombotic effect of obesity surgery, and this literature review summarizes the results of these studies. METHODS: A detailed literature search on the effects of obesity surgery on the hemostatic balance was conducted. RESULTS: The 25 relevant studies reviewed demonstrated that obesity surgery has favorable effects on many biomarkers of coagulation and fibrinolysis. The evidence is substantial for fibrinogen and plasminogen activator inhibitor type 1 with average reductions from 1 to 24 months after obesity surgery of 17 and 48%, respectively. For most other biomarkers, the evidence is moderate or weak with average effect sizes varying from 2% for fiber mass length ratio to 70% for prothrombin fragment 1 + 2 and with a large variation between studies. Many studies are small and of short duration, and the surgical techniques differ. Also, studies are confounded by changes in medication, comorbidity, diet, and exercise. It is unknown whether the hemostatic changes are mediated by weight loss alone or by the accompanying metabolic improvements. CONCLUSION: Despite issues of confounding, this review suggests that obesity surgery shifts the hemostatic balance in the antithrombotic direction, thereby reducing the thrombotic potential of people with obesity, but more studies are needed for most of the biomarkers.

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Crossref · 10.1055/s-0040-1702224

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Authors
Bladbjerg, E. M., Stolberg, C. R., & Juhl, C. B.
Affiliations
University of Southern Denmark (DK)
Venue
Thrombosis and Haemostasis
Published
2020-04
Volume
120
Issue
04
Pages
579-591
ISSN
  • 0340-6245 (ISSN-L)
  • 2567-689X
OpenAlex
W3015241468
Cited by
43
References
107
Citations by year
2026: 7 · 2025: 8 · 2024: 9 · 2023: 5 · 2022: 4 · 2021: 6 · 2020: 3
FWCI
4.11
Type
journal article
Language
en
Licence
other-oa
Locations
  • Thrombosis and Haemostasis (publishedVersion)
  • PubMed (publishedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Blood properties and coagulation
Keywords
bariatric surgery, coagulation, fibrinolysis, hemostasis, thrombosis risk, fibrinogen, plasminogen activator inhibitor-1, prothrombin fragment 1+2, weight loss, metabolic improvement
MeSH terms
Animals, Blood Coagulation, Fibrinolysis, Hemostasis, Humans, Obesity, Thrombosis, Biomarkers, Treatment Outcome, Bariatric Surgery

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