PURPOSE To evaluate the histologic and angiographic effects of collagen microbeads as an embolic agent in the swine rete mirabile. METHODS Human collagen particles (380 +/- 100 microns) of spheroidal shape and smooth surface were used to embolize the rete mirabile in five swine. Control angiograms and pathologic examinations were obtained immediately and sequentially from 3 to 35 days after e...

The role of active thrombosis in the pathophysiology of pulmonary embolism is unclear. We tested the hypothesis that venous thrombi significantly increase their thrombotic activity once they embolize into the high-flow circulation of the pulmonary arteries. Thrombotic activity was measured using an immunoassay that measures both fibrinopeptide B (FPB) as well as its most abundant metabolite des...

Saphenous vein grafts (SVGs) are widely used as aortocoronary conduits during coronary artery bypass surgery and are critical in the high early success of coronary bypass revascularization. Saphenous vein grafts tend to be more prone than native coronary arteries to accelerated atherosclerosis and intimal fibrosis and thus frequently lead to recurrent symptoms and require further revascularizat...

Lambl's excrescences (LEs) are delicate filiform strands formed by connective tissue located along the valve closure lines within cardiovascular system. Most cases of these manifest without discernible symptoms, and exact etiological factors contributing to their formation remain unknown. These may embolize brain, causing strokes. It is essential that all other possible causes stroke be elimina...

1. Pulmonary Embolic Disease: An Overview Venous thrombolembolic disease, including deep venous thrombosis (DVT) and pulmonary embolism (PE), is an important medical condition. It is estimated that there are approximately 5 million cases of deep venous thrombosis annually in the US. At least 10% of these lead to PE, and approximately 10% of these result in death (50,000). PE is the sole or majo...

Atrial myxomas are the most common primary neoplasm of heart. Due to their mass effect, they may lead dysfunction heart or mitral valve. Rarely, neoplastic fragments embolize a thrombus secondary stasis form, which can infarct downstream structures (e.g., brain). We report case 59-year-old man presenting with headaches, visual changes, and word-finding difficulty multifocal brain lesions that w...

Plastic bronchitis (PB) and chylothorax (CTX) are lymphatic disorders previously associated with abnormal thoracic duct-pulmonary connections. We report findings of liver-thorax connections bypassing the central system, results subsequent intervention. Single center retrospective cohort study all patients who underwent lymphangiography hepatopulmonary (HP) from 1/2016 to 1/2023. All HP bilatera...

Intracardiac foreign bodies may be caused by direct penetrating trauma, embolization from injury to another area of the body, or iatrogenically from fragments of intravascular access devices. Penetrating cardiac trauma commonly presents with a hemodynamically unstable patient necessitating emergent life-saving procedures. Missile embolization to the heart can occur after injury to systemic and ...

The patient is a 14-year-old boy with a family history of von HippelLindau disease. The boy's father died from intracranial manifestations of the disease. Sixteen months before this admission to the hospital, the patient was found to have two cerebellar hemangioblastomas, and one was removed . Blood loss ' at surgery was 600 ml, and achieving hemostasis was difficult. The remaining tumor was re...