OBJECTIVE: To assess the relative risks for bleeding with thrombolytic therapy in patients who are managed using pulmonary angiograms compared with those managed using noninvasive tests, primarily the ventilation-perfusion lung scan. DESIGN: A decision analysis based on data from other studies. METHODS: The risk for major bleeding in patients with pulmonary embolism who receive thrombolytic therapy after a noninvasive diagnosis was assessed from complications of thrombolytic therapy in patients with myocardial infarction, assuming that the same risk ratio for major bleeding when comparing an invasive with a noninvasive approach applied to patients with pulmonary embolism. The risk ratio was 3.3 (95% CI, 1.5 to 9.8) for major bleeding in patients with myocardial infarction. One or more major complications of pulmonary angiography occurred in 1.3% of patients (CI, 0.6% to 1.9%). RESULTS: The average reported risk was 14% (18 of 129 patients) (CI, 7.9% to 20.1%) for major bleeding in patients who had pulmonary angiography before receiving tissue plasminogen activator (tPA). The estimated risk was 4.2% (estimated CI, 1.4% to 9.3%) for major bleeding with tPA after a noninvasive diagnosis of pulmonary embolism. Assuming a risk of 1.3% for major complications from pulmonary angiography, a risk for major hemorrhage of 14.0% for an invasive diagnosis, and a risk of 4.2% for a noninvasive diagnosis, fewer complications would occur with noninvasive management if the prevalence of pulmonary embolism exceeded 21%. CONCLUSION: Among patients with suspected pulmonary embolism who are candidates for thrombolytic therapy, it is safer to use noninvasive diagnostic tests in many patients.
OBJECTIVE: To assess the relative risks for bleeding with thrombolytic therapy in patients who are managed using pulmonary angiograms compared with those managed using noninvasive tests, primarily the ventilation-perfusion lung scan. DESIGN: A decision analysis based on data from other studies. METHODS: The risk for major bleeding in patients with pulmonary embolism who receive thrombolytic therapy after a noninvasive diagnosis was assessed from complications of thrombolytic therapy in patients with myocardial infarction, assuming that the same risk ratio for major bleeding when comparing an invasive with a noninvasive approach applied to patients with pulmonary embolism. The risk ratio was 3.3 (95% CI, 1.5 to 9.8) for major bleeding in patients with myocardial infarction. One or more major complications of pulmonary angiography occurred in 1.3% of patients (CI, 0.6% to 1.9%). RESULTS: The average reported risk was 14% (18 of 129 patients) (CI, 7.9% to 20.1%) for major bleeding in patients who had pulmonary angiography before receiving tissue plasminogen activator (tPA). The estimated risk was 4.2% (estimated CI, 1.4% to 9.3%) for major bleeding with tPA after a noninvasive diagnosis of pulmonary embolism. Assuming a risk of 1.3% for major complications from pulmonary angiography, a risk for major hemorrhage of 14.0% for an invasive diagnosis, and a risk of 4.2% for a noninvasive diagnosis, fewer complications would occur with noninvasive management if the prevalence of pulmonary embolism exceeded 21%. CONCLUSION: Among patients with suspected pulmonary embolism who are candidates for thrombolytic therapy, it is safer to use noninvasive diagnostic tests in many patients.
Authors: J S Bhuvaneswaran; Rajendra Kumar Premchand; S S Iyengar; C B Chabra; T N C Padmanabhan; S K Sharma; Alkesh Jain; S A Pandian; S Rajdev; N Modi; V Kumar Journal: J Thromb Thrombolysis Date: 2011-05 Impact factor: 2.300
Authors: Sergio Fasullo; Giorgio Maringhini; Gabriella Terrazzino; Filippo Ganci; Salvatore Paterna; Pietro Di Pasquale Journal: Int J Emerg Med Date: 2011-10-31
Authors: Jiang-Shan Tan; Ningning Liu; Song Hu; Yan Wu; Xin Gao; Ting-Ting Guo; Xin-Xin Yan; Fu-Hua Peng; Lu Hua Journal: Front Cardiovasc Med Date: 2022-06-30