Abstract
Bleeding refers to the most important complication during anticoagulation therapy in patients with pulmonary embolism (PE). However, the incidence and risk factors of bleeding in Chinese population with anticoagulant therapy remains unknown. Although diabetes mellitus (DM) has been demonstrated to increase the risk of PE, little information of its influence on anticoagulation-associated bleeding risk can be available. In our study, 563 acute PE patients, who fulfilled the including criteria were enrolled from a single center and received conventional anticoagulant therapy. And there were 539 patients completed the 3 months following-up. The cumulative incidences of major bleeding (MB) and clinically relevant non-major bleeding (CRNMB) were 3.0% (95% CI 1.01–3.05) and 14.0% (95% CI 1.47–5.21), respectively. Besides, anemia (OR 3.52, 95% CI 1.12–11.41) and recent history of MB (OR 8.14, 95% CI 1.41–31.95) were independently associated with MB. Age >65 year (OR 1.51, 95% CI 1.12–3.11), cancer (OR 2.01, 95% CI 1.12–4.01) and therapeutic range (TTR) during 3 months (OR 0.93, 95% CI 0.91–0.98) were independently associated with CRNMB. Additionally, DM was an independent risk factor for both MB (OR 2.11, 95% CI 1.10–4.12) and CRNMB (OR 2.11, 95% CI 1.10–4.12). Notably, the incidence of MB or CRNMB was significantly higher in DM patients than non-DM patients. At the end of 3-month follow-up, the HbA1C in CRNMB group was 8.3%, yet it was 7.0% in non-CRNMB group among diabetic patients (p = 0.04). In conclusions, the bleeding rates are high in patients with acute PE who receive anticoagulant therapy. In addition to the already known bleeding risk factors, DM can also increase the bleeding risk significantly. Thus, good glycemic control may be essential after prescription of anticoagulant therapy.
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Abbreviations
- PE:
-
Pulmonary embolism
- DM:
-
Diabetes mellitus
- CI:
-
Confidence interval
- OR:
-
Odds ratio
- PA:
-
Pulmonary arteriography
- CTPA:
-
Computed tomographic pulmonary angiography
- V/Q:
-
Ventilation perfusion
- MRPA:
-
Magnetic resonance pulmonary angiography
- LWMH:
-
Low molecular weight heparin
- INR:
-
International normalized ratio
- TTR:
-
Time in therapeutic range
- VKA:
-
Vitamin K Antagonist
- MB:
-
Major bleeding
- CRNMB:
-
Clinically relevant non-major bleeding
- RCT:
-
Randomized controlled trials
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Funding
This study was supported by the Fund of The National Key Research and Development Program of China (No. 2016YFC0905600), China Key Research Projects of the 11th National Five-year Development Plan (No. 2006BAI01A06), Beijing Youth Star of Science and Technology Program (No. 2007B037); The capital health research and development of special fund (2011-1004-03); National Department of Public Benefit Research Foundation by Ministry of Health P. R. China (No. 201,302,008), Beijing Natural Science Foundation (7,152,062); National Natural Science Foundation of China (No. 81,570,049).
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Zhang, Z., Zhai, Z., Yang, Y. et al. Diabetes mellitus is associated with increased bleeding in pulmonary embolism receiving conventional anticoagulant therapy: findings from a “real-world” study. J Thromb Thrombolysis 43, 540–549 (2017). https://doi.org/10.1007/s11239-017-1473-5
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DOI: https://doi.org/10.1007/s11239-017-1473-5