scholarly journals Complement C3 and High Risk of Venous Thromboembolism: 80517 Individuals from the Copenhagen General Population Study

2016 ◽  
Vol 62 (3) ◽  
pp. 525-534 ◽  
Author(s):  
Ina Nørgaard ◽  
Sune F Nielsen ◽  
Børge G Nordestgaard
Keyword(s):  
Pulmonary Embolism ◽  
Venous Thromboembolism ◽  
High Risk ◽  
General Population ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Population Study ◽  
Mean Value ◽  
Complement C3 ◽  
General Population Study

Abstract BACKGROUND Complement activation may contribute to venous thromboembolism, including deep venous thrombosis and pulmonary embolism. We tested the hypothesis that high complement C3 concentrations are associated with high risk of venous thromboembolism in the general population. METHODS We included 80 517 individuals without venous thromboembolism from the Copenhagen General Population Study recruited in 2003–2012. Plasma complement C3 concentrations were measured at baseline, and venous thromboembolism (n = 1176) was ascertained through April 2013 in nationwide registries. No individuals were lost to follow-up. RESULTS Complement C3 concentrations were approximately normally distributed, with a mean value of 1.13 g/L (interquartile range 0.98–1.26; SD 0.21). The cumulative incidence of venous thromboembolism was higher with progressively higher tertiles of complement C3 (log-rank trend: P = 3 × 10−8): at age 80, 7%, 9%, and 11% of individuals in the first, second, and third tertiles, respectively, had developed venous thromboembolism. Multivariable-adjusted hazard ratios for venous thromboembolism compared with individuals in the first tertile were 1.36 (95% CI, 1.16–1.59) for those in the second tertile and 1.58 (1.33–1.88) for those in the third tertile. Corresponding values were 1.36 (1.16–1.60) and 1.57 (1.33–1.87) after additional adjustment for C-reactive protein and 1.27 (1.09–1.49) and 1.31(1.10–1.57) after additional adjustment for body mass index. These results were similar for deep venous thrombosis and pulmonary embolism separately. The multivariable-adjusted hazard ratio for venous thromboembolism for a 1-g/L increase in complement C3 was 2.43 (1.74–3.40). CONCLUSIONS High concentrations of complement C3 were associated with high risk of venous thromboembolism in the general population.

Incidence of Venous Thromboembolism: A Community-based Study in Western France

2000 ◽  
Vol 83 (05) ◽  
pp. 657-660 ◽  
Author(s):  
Emmanuel Oger ◽  
Keyword(s):  
Pulmonary Embolism ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Confidence Interval ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Medical Patients ◽  
Community Based ◽  
Effective Prophylaxis ◽  
One Year

SummaryThe incidence of venous thromboembolism has been studied during one year in a defined population of 342,000 inhabitants. The overall incidence (95% confidence interval) of venous thromboembolism was found to be 1.83 per thousand per year (1.69 to 1.98). The incidences of deep venous thrombosis and pulmonary embolism were 1.24 per thousand per year (1.12 to 1.36) and 0.60 per thousand per year (0.52 to 0.69), respectively. The incidence of venous thromboembolism rose markedly with increasing age for both sexes; over the age of 75, the annual incidence reached 1 per 100. Sixty three percent of the patients were at home when venous thromboembolism occurred. Of these, sixteen percent had been previously hospitalised within three months. These results raise concerns on identification of medical patients at high risk and effective prophylaxis.

scholarly journals Forty-One-Year-Old Man with Pulmonary Embolism 5 Months After COVID-19

2021 ◽  
Vol 15 ◽  
pp. 117954842098665
Author(s):  
Muhanad Taha ◽  
Paul Nguyen ◽  
Aditi Sharma ◽  
Mazen Taha ◽  
Lobelia Samavati
Keyword(s):  
Risk Factors ◽  
Pulmonary Embolism ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Venous Thrombosis ◽  
Case Summary ◽  
One Year

Background: Hypercoagulation is one of the striking features of COVID-19. Patients hospitalized with COVID-19 are at high risk for venous thromboembolism. However, it is unknown if the risk for venous thromboembolism persists after discharge. Case Summary: We report a case with pulmonary embolism 5 months after COVID-19. No risk factors for venous thrombosis have been identified. Conclusion: In COVID-19 related hospitalization, large studies are needed to identify the risk of venous thromboembolism after discharge.

High incidence of patients lost to follow-up after venous thromboembolism diagnosis – Identifying an unmet need for targeted transition of care

Vascular ◽  
2021 ◽  
pp. 170853812110209
Author(s):  
Rae S Rokosh ◽  
Jack H Grazi ◽  
David Ruohoniemi ◽  
Eugene Yuriditsky ◽  
James Horowitz ◽  
...  
Keyword(s):  
Emergency Department ◽  
Pulmonary Embolism ◽  
Venous Thromboembolism ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Time Of Day ◽  
Transition Of Care ◽  
Initial Discharge ◽  
Significant Difference

Objectives Venous thromboembolism, including deep venous thrombosis and pulmonary embolism, is a major source of morbidity, mortality, and healthcare utilization. Given the prevalence of venous thromboembolism and its associated mortality, our study sought to identify factors associated with loss to follow-up in venous thromboembolism patients. Methods This is a single-center retrospective study of all consecutive admitted (inpatient) and emergency department patients diagnosed with acute venous thromboembolism via venous duplex examination and/or chest computed tomography from January 2018 to March 2019. Patients with chronic deep venous thrombosis and those diagnosed in the outpatient setting were excluded. Lost to venous thromboembolism-specific follow-up (LTFU) was defined as patients who did not follow up with vascular, cardiology, hematology, oncology, pulmonology, or primary care clinic for venous thromboembolism management at our institution within three months of initial discharge. Patients discharged to hospice or dead within 30 days of initial discharge were excluded from LTFU analysis. Statistical analysis was performed using STATA 16 (College Station, TX: StataCorp LLC) with a p-value of <0.05 set for significance. Results During the study period, 291 isolated deep venous thrombosis, 25 isolated pulmonary embolism, and 54 pulmonary embolism with associated deep venous thrombosis were identified in 370 patients. Of these patients, 129 (35%) were diagnosed in the emergency department and 241 (65%) in the inpatient setting. At discharge, 289 (78%) were on anticoagulation, 66 (18%) were not, and 15 (4%) were deceased. At the conclusion of the study, 120 patients (38%) had been LTFU, 85% of whom were discharged on anticoagulation. There was no statistically significant difference between those LTFU and those with follow-up with respect to age, gender, diagnosis time of day, venous thromboembolism anatomic location, discharge unit location, or anticoagulation choice at discharge. There was a non-significant trend toward longer inpatient length of stay among patients LTFU (16.2 days vs. 12.3 days, p = 0.07), and a significant increase in the proportion of LTFU patients discharged to a facility rather than home ( p = 0.02). On multivariate analysis, we found a 95% increase in the odds of being lost to venous thromboembolism-specific follow-up if discharged to a facility (OR 1.95, CI 1.1–3.6, p = 0.03) as opposed to home. Conclusions Our study demonstrates that over one-third of patients diagnosed with venous thromboembolism at our institution are lost to venous thromboembolism-specific follow-up, particularly those discharged to a facility. Our work suggests that significant improvement could be achieved by establishing a pathway for the targeted transition of care to a venous thromboembolism-specific follow-up clinic.

scholarly journals Upper extremity deep venous thrombosis: risk factors, diagnosis, treatment

2016 ◽  
Vol 11 (1) ◽  
pp. 28-32
Author(s):  
Camelia C. DIACONU ◽  
◽  
Mădălina ILIE ◽  
Mihaela Adela IANCU ◽  
◽  
...  
Keyword(s):  
Risk Factors ◽  
Pulmonary Embolism ◽  
High Risk ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Upper Extremity ◽  
Brachiocephalic Vein ◽  
Risk Of Death ◽  
Thrombosis Risk ◽  
Effort Thrombosis

Upper extremity deep venous thrombosis is a condition with increasing prevalence, with high risk of morbidity and mortality, due to embolic complications. In the majority of the cases, thrombosis involves more than one venous segment, most frequently being affected the subclavian vein, followed by internal jugular vein, brachiocephalic vein and basilic vein. Upper extremity deep venous thrombosis in patients without risk factors for thrombosis is called primary deep venous thrombosis and includes idiopathic thrombosis and effort thrombosis. Deep venous thrombosis of upper extremity is called secondary when there are known risk factors and it is encountered mainly in older patients, with many comorbidities. The positive diagnosis is established only after paraclinical and imaging investigations, ultrasonography being the most useful diagnostic method. The most important complication, with high risk of death, is pulmonary embolism. Treatment consists in anticoagulant therapy, for preventing thrombosis extension and pulmonary embolism.

Venous Thromboembolism Prophylaxis in Aesthetic Surgery: A Survey of Plastic Surgeons’ Practices

2020 ◽  
Vol 40 (12) ◽  
pp. 1351-1369 ◽  
Author(s):  
Victoria L Aimé ◽  
Matthew R Neville ◽  
Danielle A Thornburg ◽  
Shelley S Noland ◽  
Raman C Mahabir ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Venous Thromboembolism ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Assessment Tool ◽  
Aesthetic Surgery ◽  
Thromboembolism Prophylaxis ◽  
Vte Prophylaxis ◽  
Electronic Survey ◽  
The Aesthetic

Abstract Background Deep venous thrombosis and pulmonary embolism, collectively known as venous thromboembolism (VTE), are among the most feared yet preventable surgical complications. Although many recommendations exist to reduce the risk of VTE, the actual VTE prophylaxis practices of aesthetic plastic surgeons remain unknown. Objectives The primary aim of this study was to elucidate plastic surgeons’ experiences with VTE, preferred VTE prophylaxis practices, and areas in which VTE prevention may be improved. Methods Members of The Aesthetic Society were queried via a 55-question electronic survey regarding their experience with VTE as well as their VTE prophylaxis practices. Anonymous responses were collected and analyzed by the Mayo Clinic Survey Research Center. Results The survey was sent to 1729 of The Aesthetic Society members, of whom 286 responded. Fifty percent, 38%, and 6% of respondents reported having had a patient develop a deep venous thrombosis, pulmonary embolism, or death secondary to VTE, respectively. Procedures performed on the back or trunk were associated with the highest rate of VTE. Lower extremity procedures were associated with a significantly higher rate of VTE than expected. Over 90% of respondents reported utilizing a patient risk stratification assessment tool. Although at least one-half of respondents reported that the surgical facility in which they operate maintains some form of VTE prophylaxis protocol, 39% self-reported nonadherence with these protocols. Conclusions Considerable variability exists in VTE prophylaxis practices among The Aesthetic Society responders. Future efforts should simplify guidelines and tailor prophylaxis recommendations to the aesthetic surgery population. Furthermore, education of plastic surgeons performing aesthetic surgery and more diligent surgical venue supervision is needed to narrow the gap between current recommendations and actual practices.

Venous thromboembolism: epidemiology and aetiology

2016 ◽  
Author(s):  
Demosthenes G. Katritsis ◽  
Bernard J. Gersh ◽  
A. John Camm
Keyword(s):  
Pulmonary Embolism ◽  
Venous Thromboembolism ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis

Venous thromboembolism denotes pulmonary embolism and deep venous thrombosis. This chapter addresses the epidemiology and aetiology of the disease.

Fibrinogen Proteolysis and Deep Venous Thrombosis (DVT)

1979 ◽  
Author(s):  
H.L. Nossel
Keyword(s):  
Pulmonary Embolism ◽  
High Risk ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Fibrinopeptide A ◽  
Terminal Portion ◽  
Two Stage ◽  
Normal Individuals

Thrombin cleaves fibrinogen in a two-stage reaction first producing fibrin I (fl) and fibrinopeptide A (FPA) and then fibrin II (fill and fibrinopeptide B (FPU). FI forms thinner strands than fil, a property which may be important in the pathogenesis of thrombosis. In the initial stages of plasmin proteolysis of fibrinogen the C-terminal portion of the Aα chain and the N-terminal portion of the EB chain are removed, leaving a molecule called fragment X (X). Release of the N-termlnal peptide Bβ1-42 serves as an index of X formation, llcnco plasma FPA levels serve as an index of X formation by thrombin action and Bβ1-42 levels as an index of X formation by plasmin action. In normal individuals Bβ1-42 levels were approvimately three times higher than FPA levels. In patients with symptoms of DVT, which was confirmed by venogram, PPA levels were almost invariably elevated. Bβ1-42 levels were not significantly elevated in these patients in the absence of complicating pulmonary embolism. Initial studies on patients at high risk for DVT studied prospectively have shown signigicant elevation of the plasma FPA level and little change in the Bβ1-42 level for several days preceding the onset of DVT as indicated by 125I-fibTinogen scan and confirmed by venogram. Bβ1-42 levels became elevated several days later inassociation either with pulmonary embolism or with resolution of the thrombosis. These data suggest_ that the development of DVT is associated with and preceded by imbalance between thrombin action as indicated by plasma FPA levels and plasmin action as indicated by Bβ1-42 levels.

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