Introduction: There is an association between rheological alterations and lower extremity deep vein thrombosis, although no research has been carried out regarding the possible influence of rheological alterations in the development of venous thrombosis in the upper limbs.
Materials And Methods: We have determined in 54 patients (23 male, 31 female; aged 35+/-11 years) with primary upper extremity deep vein thrombosis (UEDVT), and in a well matched control group of 87 subjects (41 male, 46 female; aged 36+/-12 years) the rheological profile (blood viscosity, plasma viscosity, fibrinogen, erythrocyte aggregation, erythrocyte deformability) along with plasma lipids (total cholesterol and triglycerides) and body mass index (BMI). Thrombophilic defects (antithrombin, protein C, protein S deficiencies, factor V Leiden, prothrombin G20210A mutation and antiphospholipid antibodies) were also determined.
Results: No statistical differences were observed in any of the rheological parameters analyzed (p>0.05), as well as in plasma lipids and BMI (p>0.05) when cases and controls were compared. In investigating the associated factors, we found that more than 60% of events could be explained through effort (28%), thrombophilic defects (19%) and oral contraceptives (26%). Obesity and hyperlipidaemia were not associated with primary UEDVT.
Conclusion: Hemorheological alterations do not seem to contribute from a pathogenic point of view to the development of thrombotic events in this infrequent venous location, which is in accordance both with the absence of cardiovascular risk factors and the high shear forces existing in the upper extremity.
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http://dx.doi.org/10.3233/CH-2009-1179 | DOI Listing |
Open Heart
January 2025
Department of Molecular and Clinical Medicine, University of Gothenburg Institute of Medicine, Gothenburg, Sweden.
Purpose: We examined whether end-to-end deep-learning models could detect moderate (≥50%) or severe (≥70%) stenosis in the left anterior descending artery (LAD), right coronary artery (RCA) or left circumflex artery (LCX) in iodine contrast-enhanced ECG-gated coronary CT angiography (CCTA) scans.
Methods: From a database of 6293 CCTA scans, we used pre-existing curved multiplanar reformations (CMR) images of the LAD, RCA and LCX arteries to create end-to-end deep-learning models for the detection of moderate or severe stenoses. We preprocessed the images by exploiting domain knowledge and employed a transfer learning approach using EfficientNet, ResNet, DenseNet and Inception-ResNet, with a class-weighted strategy optimised through cross-validation.
Neurochirurgie
January 2025
Department of Orthopedic Surgery, Panzhihua Central Hospital, Sichuan Province, Panzhihua City, 617067, China. Electronic address:
Background: Spinal tuberculosis is a common cause of spinal deformity and neurological dysfunction, with surgical treatment being crucial in severe cases. This study evaluates the efficacy and safety of combined anterior and posterior surgery with autologous tricortical iliac bone and rib grafting for treating spinal tuberculosis.
Methods: We included 61 patients with thoracic tuberculosis, who underwent a surgical procedure involving initial posterior correction, followed by anterior debridement and reconstruction with autologous tricortical iliac bone and rib grafts.
Introduction: In the United States, deep vein thrombosis (DVT) and pulmonary embolism (PE) ranked high in terms of possibly preventable hospital deaths. Victims of trauma were at a higher risk of developing thromboembolic complications, and thus various agents were used for prophylaxis. Multiple studies recommended holding these agents in the perioperative period to decrease the potential complications of additional bleeding, wound issues, hematoma etc.
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January 2025
Department of Radiology, Section of Vascular and Interventional Radiology, University of Washington, 1959 Northeast Pacific Street, Seattle, WA, 98195, USA.
Purpose: To evaluate access site adverse events following ClotTriever-mediated large-bore mechanical thrombectomy via small upper extremity deep veins (< 6-mm).
Materials And Methods: Twenty patients, including 24 upper extremity venous access sites, underwent ClotTriever-mediated large-bore thrombectomy of the upper extremity and thoracic central veins for symptomatic deep vein obstruction unresponsive to anticoagulation. Patients without follow-up venous duplex examinations (n = 3) were excluded.
J Clin Med
January 2025
Department of Pathophysiology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania.
Venous thromboembolism (VTE), encompassing deep vein thrombosis and pulmonary embolism, is a significant burden on health and economic systems worldwide. Improved VTE management calls for the integration of biomarkers into diagnostic algorithms and scoring systems for risk assessment, possible complications, and mortality. This literature review discusses novel biomarkers with potential diagnostic and prognostic value in personalized VTE management.
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