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      Clinical update on pulmonary embolism

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          Abstract

          Pulmonary embolism (PE) is a major cause of cardiovascular mortality and financial burden that affects the community. The diagnosis of PE can be difficult because of the nonspecific symptoms, which include cough, dyspnea, hemoptysis and pleuritic chest pain. Hereditary and acquired risk factors are associated with PE. Incidence of PE is increasing, associated with the development in the diagnostic methods. Evidence-based algorithms can help clinicians diagnose PE. Serum D-dimer level, computed tomography pulmonary angiogram (CTPA), ventilation-perfusion scintigraphy or echocardiography help to establish clinical probability and the severity of PE. Anticoagulation is the standard treatment for PE. However, thrombolytic treatment is a significant alternative in high risk of PE as it provides rapid clot resolution. This article reviews the risk factors, diagnostic algorithms, and methods of treatment in PE in the light of current information.

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          Acute pulmonary embolism: clinical outcomes in the International Cooperative Pulmonary Embolism Registry (ICOPER)

          S Z Goldhaber, L Visani, M. De Rosa (1999)
          Pulmonary embolism (PE) remains poorly understood. Rates of clinical outcomes such as death and recurrence vary widely among trials. We therefore established the International Cooperative Pulmonary Embolism Registry (ICOPER), with the aim of identifying factors associated with death. 2454 consecutive eligible patients with acute PE were registered from 52 hospitals in seven countries in Europe and North America. The primary outcome measure was all-cause mortality at 3 months. The prognostic effect of baseline factors on survival was assessed with multivariate analyses. 2110 (86.0%) patients had PE proven by necropsy, high-probability lung scan, pulmonary angiography, or venous ultrasonography plus high clinical suspicion; ICOPER accepted without independent review diagnoses and interpretation of imaging provided by participating centres; 3-month follow-up was completed in 98.0% of patients. The overall crude mortality rate at 3 months was 17.4% (426 of 2454 deaths, including 52 patients lost to follow-up): 179 of 397 (45.1%) deaths were ascribed to PE and 70 of 397 (17.6%) to cancer, and no information on the cause of death was available for 29 patients. After exclusion of 61 patients in whom PE was first discovered at necropsy, the mortality rate at 3 months was 15.3% (365 of 2393 deaths). On multiple-regression modelling, age over 70 years (hazard ratio 1.6 [95% CI 1.1-2.3]), cancer (2.3 [1.5-3.5]), congestive heart failure (2.4 [1.5-3.7]), chronic obstructive pulmonary disease (1.8 [1.2-2.7]), systolic arterial hypotension (2.9 [1.7-5.0]), tachypnoea (2.0 [1.2-3.2]), and right-ventricular hypokinesis on echocardiography (2.0 [1.3-2.9]) were identified as significant prognostic factors. PE remains an important clinical problem with a high mortality rate. Data from ICOPER provide rates and highlight adverse prognostic categories that will help in planning of future trials of high-risk PE patients.
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            Incidence and mortality of venous thrombosis: a population-based study.

            I Naess, S C Christiansen, P. Romundstad … (2007)
            Estimates of the incidence of venous thrombosis (VT) vary, and data on mortality are limited. We estimated the incidence and mortality of a first VT event in a general population. From the residents of Nord-Trøndelag county in Norway aged 20 years and older (n = 94 194), we identified all cases with an objectively verified diagnosis of VT that occurred between 1995 and 2001. Patients and diagnosis characteristics were retrieved from medical records. Seven hundred and forty patients were identified with a first diagnosis of VT during 516,405 person-years of follow-up. The incidence rate for all first VT events was 1.43 per 1000 person-years [95% confidence interval (CI): 1.33-1.54], that for deep-vein thrombosis (DVT) was 0.93 per 1000 person-years (95% CI: 0.85-1.02), and that for pulmonary embolism (PE) was 0.50 per 1000 person-years (95% CI: 0.44-0.56). The incidence rates increased exponentially with age, and were slightly higher in women than in men. The 30-day case-fatality rate was higher in patients with PE than in those with DVT [9.7% vs. 4.6%, risk ratio 2.1 (95% CI: 1.2-3.7)]; it was also higher in patients with cancer than in patients without cancer [19.1% vs. 3.6%, risk ratio 3.8 (95% CI 1.6-9.2)]. The risk of dying was highest in the first months subsequent to the VT, after which it gradually approached the mortality rate in the general population. This study provides estimates of incidence and mortality of a first VT event in the general population.
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              Trends in the incidence of deep vein thrombosis and pulmonary embolism: a 25-year population-based study.

              M D Silverstein, J A Heit, D Mohr … (1998)
              The incidence of venous thromboembolism has not been well described, and there are no studies of long-term trends in the incidence of venous thromboembolism. To estimate the incidence of deep vein thrombosis and pulmonary embolism and to describe trends in incidence. We performed a retrospective review of the complete medical records from a population-based inception cohort of 2218 patients who resided within Olmsted County, Minnesota, and had an incident deep vein thrombosis or pulmonary embolism during the 25-year period from 1966 through 1990. The overall average age- and sex-adjusted annual incidence of venous thromboembolism was 117 per 100000 (deep vein thrombosis, 48 per 100000; pulmonary embolism, 69 per 100000), with higher age-adjusted rates among males than females (130 vs 110 per 100000, respectively). The incidence of venous thromboembolism rose markedly with increasing age for both sexes, with pulmonary embolism accounting for most of the increase. The incidence of pulmonary embolism was approximately 45% lower during the last 15 years of the study for both sexes and all age strata, while the incidence of deep vein thrombosis remained constant for males across all age strata, decreased for females younger than 55 years, and increased for women older than 60 years. Venous thromboembolism is a major national health problem, especially among the elderly. While the incidence of pulmonary embolism has decreased over time, the incidence of deep vein thrombosis remains unchanged for men and is increasing for older women. These findings emphasize the need for more accurate identification of patients at risk for venous thromboembolism, as well as a safe and effective prophylaxis.
              Article 0 comments Cited 303 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Arch Med Sci
                Journal ID (iso-abbrev): Arch Med Sci
                Journal ID (publisher-id): AMS
                Title: Archives of Medical Science : AMS
                Publisher: Termedia Publishing House
                ISSN (Print): 1734-1922
                ISSN (Electronic): 1896-9151
                Publication date (Electronic): 07 May 2013
                Publication date (Print): 29 June 2014
                Volume: 10
                Issue: 3
                Pages: 557-565
                Affiliations
                Dışkapı Yıldırım Beyazıt Research and Education Hospital, Ankara, Turkey
                Author notes
                Corresponding author: Serap Duru MD, Dışkapı Yıldırım Beyazıt Research and Education Hospital, 06200 Ankara, Turkey. Phone: 90 312 3151201. E-mail: akcalis@ 123456hotmail.com
                Article
                Publisher ID: 20533
                DOI: 10.5114/aoms.2013.34325
                PMC ID: 4107241
                PubMed ID: 25097588
                SO-VID: f5f35d7a-1b88-4481-9b1a-7f39c45cabdb
                Copyright © Copyright © 2014 Termedia & Banach
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 01 May 2012
                Date revision received : 19 July 2012
                Date accepted : 29 November 2012
                Categories
                Subject: State of the Art Paper

                ScienceOpen disciplines: Medicine
                Keywords: pulmonary embolism,thrombosis,update
                Data availability:
                ScienceOpen disciplines: Medicine
                Keywords: pulmonary embolism, thrombosis, update

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