Right Atrial and Massive Pulmonary Artery Mechanical Thrombectomy Under Echocardiography Guidance Using the FlowTriever System

•FlowTriever system is recently cleared by FDA for mechanical thrombectomy of pulmonary embolism.•This is the first case of mechanical thrombectomy in the right atrium or ventricle under echocardiography guidance.•The mechanical thrombectomy in the right atrium/ventricle was safe and resolved the patient's symptoms.