title: Retinal vascular occlusions in open heart surgery.
abstract: This study describes microthrombotic emboli (with their ultrastructure) and emboli of fat and of dimethylpolysiloxane with silica in the retinal microcirculation of two patients who died-each after his second open heart operation. The presence of silica was confirmed by electron probe x-ray micro-analysis.
mesh_terms: D000328:Adult; D001344:Autopsy; D001792:Blood Platelets; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D003094:Collagen; D004129:Dimethylpolysiloxanes / Q000009:adverse effects*; D004577:Electron Probe Microanalysis; D004620:Embolism, Fat / Q000209:etiology; D004912:Erythrocytes; D006350:Heart Valve Prosthesis; D006487:Hemostasis; D006801:Humans; D007962:Leukocytes; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D009887:Ophthalmoscopy; D012160:Retina / Q000648:ultrastructure; D012171:Retinal Vessels / Q000473:pathology; D012828:Silicones / Q000009:adverse effects*; D013923:Thromboembolism / Q000139:chemically induced* / Q000473:pathology
chemical_list: D004129:Dimethylpolysiloxanes; D012828:Silicones; D003094:Collagen