1,721,090 research outputs found

    Is it time for home treatment of pulmonary embolism?

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    Acute pulmonary embolism (PE) is a frequent cause of death, but not all patients are at high risk of an adverse early outcome. It has been proposed that selected patients may be considered for early discharge and home treatment, but it was only recently that improved risk assessment strategies permitted advances in the identification of low-risk PE. Clinical prediction rules, such as the Pulmonary Embolism Severity Index (PESO, and laboratory biomarkers, particularly natriuretic peptides and cardiac troponins, appeared capable of excluding severe PE and serious comorbidity. Recently, two randomised trials and two prospective cohort studies investigated the feasibility and safety of outpatient treatment. All excluded patients with haemodynamic instability and serious comorbidity, but only one trial used a validated clinical score (PESI) for patient inclusion, and only one cohort study employed a biomarker test. Overall, 90-day outcome was favourable and the results appear promising. To optimise patient selection, future trials will need to test simplified clinical scores combined with high-sensitivity biomarker assays, and it will have to be determined whether echocardiography and/or compression ultrasonography are also required before discharge. Furthermore, ongoing trials will show whether new oral anticoagulants are a safe and cost-effective option for managing patients out of hospital

    Thrombolysis for pulmonary embolism: Past, present and future

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    Patients with high-risk pulmonary embolism (PE), i.e. those with shock or hypotension at presentation, are at high risk of in-hospital death, particularly during the first hours after admission. A meta-analysis of trials which included haemodynamically compromised patients indicated that thrombolytic treatment significantly reduces the rate of in-hospital death or PE recurrence. Therefore, thrombolysis should be administered to patients with high-risk PE unless there are absolute contraindications to its use. Uncontrolled data further suggest that thrombolysis may be a safe and effective alternative to surgery in patients with PE and free-floating thrombi in the right heart. On the other hand, normotensive patients generally have a favourable short-term prognosis if heparin anticoagulation is instituted promptly, and they are thus considered to have non-high-risk PE. Generally, the bleeding risk of thrombolysis appears to outweigh the clinical benefits of this treatment in patients without haemodynamic compromise. However, within the group of normotensive patients with PE, some may have evidence of right ventricular dysfunction on echocardiography or computed tomography, or of myocardial injury based on elevated cardiac biomarkers (troponin I or T, heart-type fatty acid-binding protein). These patients have an intermediate risk of an adverse outcome in the acute phase of PE. Existing data suggest that selected patients with intermediate-risk PE may benefit from early thrombolytic treatment, particularly if they have a low bleeding risk. However, controversy will continue to surround the optimal treatment for this group until the results of a large ongoing thrombolysis trial are available in a few years

    Thrombolytic therapy for submassive pulmonary embolism

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    Approximately 10% of all patients with acute pulmonary embolism (PE) die within the first three months after diagnosis. However, PE is not universally life-threatening, but covers a wide spectrum of clinical severity and death risk. Thrombolytic treatment is indicated patients with acute massive PE who are at high risk for early death, i.e. those patients who present with arterial hypotension and shock. On the other hand, low molecular-weight heparin or fondaparinux is adequate treatment for most normotensive patients with PE. Recombinant tissue plasminogen activator, given as 100 mg infusion over 2 h, is the treatment of choice for patients with PE, although older regimens using urokinase or streptokinase are also efficacious. Beyond the relatively small numbers of patients with massive, high-risk PE as a target population for thrombolysis, there is increasing awareness of the need for risk stratification of normotensive patients and the search for an intermediate-risk group (also called submassive PE). Recent meta-analyses of cohort studies suggest that imaging of the right ventricle or biomarkers of myocardial injury alone may be insufficient for guiding therapeutic decisions. Instead, accumulating evidence appears to support strategies which combine the information provided by an imaging procedure with a biomarker test. These data provide the rationale for a large multinational randomized trial which has set out to determine whether normotensive patients with right ventricular dysfunction, detected by echocardiography or computed tomography, plus evidence of myocardial injury as indicated by a positive troponin test, may benefit from early thrombolytic treatment. This study, which is underway in 13 European countries, will enroll a total of 1000 patients and will be completed in 2012. Together with a parallel trial currently being conducted in the United States, it will hopefully answer the question whether thrombolysis is indicated in submassive PE, thus terminating a 40-year-old debate and filling an important gap in our management concept for acute pulmonary embolism. (c) 2012 Elsevier Ltd. All rights reserved.Boehringer Ingelhei

    Mortality Risk Assessment and the Role of Thrombolysis in Pulmonary Embolism

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    Acute venous thromboembolism remains a frequent disease, with an incidence ranging between 23 and 69 cases per 100,000 population per year. Of these patients, approximately one-third present with clinical symptoms of acute pulmonary embolism (PE) and two-thirds with deep venous thrombosis (DVT). Recent registries and cohort studies suggest that approximately 10% of all patients with acute PE die during the first 1 to 3 months after diagnosis. Overall, 1% of all patients admitted to hospitals die of acute PE, and 10% of all hospital deaths are PE-related. These facts emphasize the need to better implement our knowledge on the pathophysiology of the disease, recognize the determinants of death or major adverse events in the early phase of acute PE, and most importantly, identify those patients who necessitate prompt medical, surgical, or interventional treatment to restore the patency of the pulmonary vasculature

    Mortality Risk Assessment and the Role of Thrombolysis in Pulmonary Embolism

    No full text
    Acute venous thromboembolism remains a frequent disease, with an incidence ranging between 23 and 69 cases per 100,000 population per year. Of these patients, approximately one-third present with clinical symptoms of acute pulmonary embolism (PE) and two-thirds with deep venous thrombosis (DVT). Recent registries and cohort studies suggest that approximately 10% of all patients with acute PE die during the first 1 to 3 months after diagnosis. Overall, 1% of all patients admitted to hospitals die of acute PE, and 10% of all hospital deaths are PE-related. These facts emphasize the need to better implement our knowledge on the pathophysiology of the disease, recognize the determinants of death or major adverse events in the early phase of acute PE, and most importantly, identify those patients who necessitate prompt medical, surgical, or interventional treatment to restore the patency of the pulmonary vasculature

    The predictive value of heart-type fatty acid-binding protein is independent from symptom duration in normotensive patients with pulmonary embolism

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    Background: Heart-type fatty acid-binding protein (H-FABP) is a useful biomarker for risk stratification of patients with pulmonary embolism(PE). In patients with acutemyocardial infarction, H-FABP plasma concentrations rise after 30 minutes and return to normal within 20-24 hours. We tested whether the predictive value of H-FABP is affected by the duration of symptoms prior to diagnosis in patients with PE. Material and Methods: We prospectively studied 257 consecutive normotensive patients with confirmed symptomatic PE. Results: Patients with acute (= 24 hours (n = 107); other baseline characteristics, comorbidities, and risk factors were distributed equally. Patients with an adverse 30-day outcome (6.6%) had higher H-FABP levels (11.84 [3.57-19.62] ng/ml) compared to patients with a favorable course (3.42 [1.92-5.42] ng/ml; p = 6 ng/ml did not differ among patients with acute symptom onset and late presentation (p = 0.104). Only tachycardia and elevation of H-FABP were associated with an increased risk of an adverse 30-day outcome both in patients with acute symptom onset (H-FABP: OR, 5.8; 95% CI, 1.4-24.5; p = 0.016; tachycardia: 7.0 [1.4-36.0]; p = 0.018) and late presentation (H-FABP: 9.3 [2.0-43.2]; p = 0.004 and tachycardia: 12.3 [1.5-103.6]; p = 0.021). The prognostic value could further be improved by the use of a simple H-FABP-based clinical prediction score. Conclusions: Our findings indicate that H-FABP is a useful biomarker for risk stratification of normotensive patients with PE regardless of symptom duration prior to diagnosis. (c) 2013 Published by Elsevier Ltd
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