Local and systemic thrombolytic therapy for acute venous thromboembolism

2003 ◽  
Vol 24 (1) ◽  
pp. 73-91 ◽  
Author(s):  
Selim M Arcasoy ◽  
Anil Vachani
Hematology ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 612-618
Author(s):  
Thita Chiasakul ◽  
Kenneth A. Bauer

Abstract Although anticoagulation remains the mainstay of treatment of acute venous thromboembolism (VTE), the use of thrombolytic agents or thrombectomy is required to immediately restore blood flow to thrombosed vessels. Nevertheless, systemic thrombolysis has not clearly been shown to improve outcomes in patients with large clot burdens in the lung or legs as compared with anticoagulation alone; this is in part due to the occurrence of intracranial hemorrhage in a small percentage of patients to whom therapeutic doses of a thrombolytic drug are administered. Algorithms have been developed to identify patients at high risk for poor outcomes resulting from large clot burdens and at low risk for major bleeding in an effort to improve outcomes in those receiving thrombolytic therapy. In acute pulmonary embolism (PE), hemodynamic instability is the key determinant of short-term survival and should prompt consideration of immediate thrombolysis. In hemodynamically stable PE, systemic thrombolysis is not recommended and should be used as rescue therapy if clinical deterioration occurs. Evidence is accumulating regarding the efficacy of administering reduced doses of thrombolytic agents systemically or via catheters directly into thrombi in an effort to lower bleed rates. In acute deep venous thrombosis, catheter-directed thrombolysis with thrombectomy can be used in severe or limb-threatening thrombosis but has not been shown to prevent postthrombotic syndrome. Because the management of acute VTE can be complex, having a rapid-response team (ie, PE response team) composed of physicians from different specialties may aid in the management of severely affected patients.


1996 ◽  
Vol 76 (05) ◽  
pp. 682-688 ◽  
Author(s):  
Jos P J Wester ◽  
Harold W de Valk ◽  
Karel H Nieuwenhuis ◽  
Catherine B Brouwer ◽  
Yolanda van der Graaf ◽  
...  

Summary Objective: Identification of risk factors for bleeding and prospective evaluation of two bleeding risk scores in the treatment of acute venous thromboembolism. Design: Secondary analysis of a prospective, randomized, assessor-blind, multicenter clinical trial. Setting: One university and 2 regional teaching hospitals. Patients: 188 patients treated with heparin or danaparoid for acute venous thromboembolism. Measurements: The presenting clinical features, the doses of the drugs, and the anticoagulant responses were analyzed using univariate and multivariate logistic regression analysis in order to evaluate prognostic factors for bleeding. In addition, the recently developed Utrecht bleeding risk score and Landefeld bleeding risk index were evaluated prospectively. Results: Major bleeding occurred in 4 patients (2.1%) and minor bleeding in 101 patients (53.7%). For all (major and minor combined) bleeding, body surface area ≤2 m2 (odds ratio 2.3, 95% Cl 1.2-4.4; p = 0.01), and malignancy (odds ratio 2.4, 95% Cl 1.1-4.9; p = 0.02) were confirmed to be independent risk factors. An increased treatment-related risk of bleeding was observed in patients treated with high doses of heparin, independent of the concomitant activated partial thromboplastin time ratios. Both bleeding risk scores had low diagnostic value for bleeding in this sample of mainly minor bleeders. Conclusions: A small body surface area and malignancy were associated with a higher frequency of bleeding. The bleeding risk scores merely offer the clinician a general estimation of the risk of bleeding. In patients with a small body surface area or in patients with malignancy, it may be of interest to study whether limited dose reduction of the anticoagulant drug may cause less bleeding without affecting efficacy.


1992 ◽  
Vol 67 (06) ◽  
pp. 724-724 ◽  
Author(s):  
O Bongard ◽  
G Reber ◽  
H Bounameaux ◽  
P de Moerloose

Haematologica ◽  
2008 ◽  
Vol 93 (2) ◽  
pp. 273-278 ◽  
Author(s):  
D. Imberti ◽  
G. Agnelli ◽  
W. Ageno ◽  
M. Moia ◽  
G. Palareti ◽  
...  

2021 ◽  
Vol 10 (Supplement_1) ◽  
Author(s):  
A Vasin ◽  
O Mironova ◽  
V Fomin

Abstract Funding Acknowledgements Type of funding sources: None. Background/Introduction: The optimal choice of the thrombolytic drug for emergency revascularization in patients with acute coronary syndrome (ACS) still remains to be defined. Percutaneous coronary intervention is a more safe and effective method of reperfusion compared with thrombolytic therapy, that’s why the last is relatively not common nowadays. But in the COVID-19 era in a number of cases some patients with ACS can’t be quickly hospitalized due to different reasons like the absence of the nearest available cardiovascular center, or lack of an ambulance. A long period of chest pain forces the doctors to use systemic thrombolytic therapy. Purpose This study investigates the efficacy and safety of Alteplase, Prourokinase, Tenecteplase, and Streptokinase in patients with acute coronary syndrome. Methods A retrospective, open, non-randomized cohort study was conducted. We have analysed 600 patients with ACS, who underwent systemic thrombolytic therapy at the prehospital and in-hospital stages from 2009 to 2011. Patients were divided into several groups according to the thrombolytic agent administered: Alteplase (254 patients), Prourokinase (309 patients), Tenecteplase (6 patients), Streptokinase (31 patients). Treatments were to be given as soon as possible. The ECG reperfusion criterion was a decrease in the ST segment by 50% or more from the initial elevation. Results  Among 600 patients (mean age, 61 years (SD = 20); 119 women [19.7%]), 440 had successful reperfusion. The median time from chest pain onset to the start of treatment was 3 hours (P < 0.001). The percentages of successful thrombolysis for each agent were similar: Alteplase 74,4% Prourokinase 71,2%, Tenecteplase 83%, Streptokinase 74,2%. No statistical differences were observed in thrombolytic results among these groups (OR: 0.60, 95% CI: 0,2868 to 1,217; P = 0.17). At the same time, the hospital treatment with prourokinase was more effective than prehospital care with prourokinase: 110 successful reperfusions in 138 patients (79.7%) and 110 successful reperfusions in 171 patients (64.3%), respectively. Regardless of the onset of the attack (OR: 0.45, 95% CI: 0,2004 to 0,9913; P = 0.05). The effectiveness of the other thrombolytics cannot be compared between prehospital care and hospital treatment due to the rare use at the hospital stage in our cases. In the study, there was also no statistical difference in complication rates among the treatment groups. Among all patients, there were 9 fatal outcomes (1.5%): Alteplase 3,15% Prourokinase 1,9%, Streptokinase 3,22%. Conclusion(s): In patients with ACS, all thrombolytic drugs showed similar effectiveness. There is no difference in the safety and efficacy among the agents in our study, but there is a difference in cost and route of administration. However, upcoming prospective trials with long follow-up periods might be expected to determine the most appropriate systemic thrombolytic drug.


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