Evaluating cardiopulmonary function following acute pulmonary embolism
EXPERT REVIEW OF CARDIOVASCULAR THERAPY(2022)
Abstract
Introduction: Pulmonary embolism is a common cause of cardiopulmonary mortality and morbidity worldwide. Survivors of acute pulmonary embolism may experience dyspnea, report reduced exercise capacity, or develop overt pulmonary hypertension. Clinicians must be alert for these phenomena and appreciate the modalities and investigations available for evaluation. Areas Covered: In this review, the current understanding of available contemporary imaging and physiologic modalities is discussed, based on available literature and professional society guidelines. The purpose of the review is to provide clinicians with an overview of these modalities, their strengths and disadvantages, and how and when these investigations can support the clinical work-up of patients post-pulmonary embolism. Expert Opinion: Echocardiography is a first test in symptomatic patients post-pulmonary embolism, with ventilation/perfusion scanning vital to determination of whether there is chronic residual emboli. The role of computed tomography and magnetic resonance in assessing the pulmonary arterial tree in post-pulmonary embolism patients is evolving. Functional testing, in particular cardiopulmonary exercise testing, is emerging as an important modality to quantify and determine cause of functional limitation. It is possible that future investigations of the post-pulmonary embolism recovery period will better inform treatment decisions for acute pulmonary embolism patients.
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Key words
Pulmonary embolism,chronic thromboembolic pulmonary hypertension,echocardiography computed tomography angiogram,cardiopulmonary exercise testing,cardiopulmonary function,cardiovascular imaging,chronic thromboembolic disease,ventilation-perfusion scintigraphy
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