Pulmonary Embolism in Ischemic Stroke

Abstract

Silent pulmonary embolism (PE) may be associated with acute ischemic stroke (AIS). We identified 10 patients from 3,132 unique patients (3,431 CT scans). We retrospectively examined CT angiogram of patients with AIS to determine the frequency of concurrent PE in AIS. The period prevalence of PE was 0.32. Seven patients had concurrent PE, whereas three had PE diagnosed 2 days after their AIS presentation. We suspected paradoxical embolism via patent foramen ovale as the cause of stroke in three patients and thrombophilia in four patients. Seven patients had poor outcome including four deaths. CT angiogram stroke protocol images from aortic arch to vertex allows visualization of upper pulmonary arteries and PE detection in AIS.

Risk Factors of Post-Partial Hepatectomy Acute Myocardial Infarction ： A Retrospective Nationwide Inpatient Sample Database Study

“…The obstruction caused by a pulmonary embolism increases right ventricular afterload not only mechanically but also through hypoxic vasoconstriction, which constitutes a pathological and physiological basis for AMI (52). Additionally, pulmonary embolism may be complicated by the presence of a patent foramen ovale, potentially leading to paradoxical systemic embolization, including cerebral embolism and subsequent acute ischemic stroke (53,54). Furthermore, hemorrhagic stroke, gastrointestinal hemorrhage, and thrombocytopenia are strongly and independently associated with bleeding.…”

A nomogram for individualized prediction of lower extremity deep venous thrombosis in stroke patients: A retrospective study

“…Lower extremity deep venous thrombosis (DVT) is a common complication after cerebral stroke, and about 11.4% to 49.6% of the stroke patients would have DVT, [1,2] which is a serious clinical disease, and DVT after stroke may cause fatal pulmonary embolism (PE). [3,4] At present, in several clinical centers, only DVT patients with suspected symptoms would be examined; most the stroke patients would have a cognitive speech impairment, making them fail to effectively express the symptoms [5] ; therefore, it is still difficult to determine the clinical diagnosis of lower extremity DVT of stroke patients. It can be of great significance to early recognition of DVT after stroke by identifying the risk factors of DVT and establishing a predictive model with clinical applicability.…”