fibrin and Shock--Traumatic

Topics: Blood Platelets; Complement Activation; Endothelium; Fibrin; Humans; Lung; Multiple Organ Failure; Neutrophils; Respiratory Distress Syndrome; Sepsis; Shock, Traumatic

Topics: Adult; Antibodies, Monoclonal; Crush Syndrome; Fibrin; Humans; Indium Radioisotopes; Male; Radionuclide Imaging; Shock, Traumatic

Many authors have advocated glucocorticoids for prophylaxis against or treatment of Adult Respiratory Distress Syndrome (ARDS) or post-traumatic pulmonary microembolism. One of the theories underlying this advocacy is that the activation of the complement system possibly is preventable by pharmacologic doses of corticosteroids. Studies on traumatized patients are difficult to standardize, and clinical observations are correspondingly difficult to evaluate. Animal models for study of the microembolism syndrome have often comprised too short a time and most have greatly differed from the clinical situation. We have earlier evolved an experimental model by means of which changes identical to the microembolism syndrome can be induced from a reproducible musculo-skeletal trauma in pigs observed under long-term anesthesia under standardized conditions. In this study, early and long-term effects of corticosteroids on the course of post-traumatic microembolism was evaluated by following the pulmonary function and X-ray appearance, pulmonary trapping of platelets and fibrin and histologic changes in pigs, using this standardized trauma model. Methylprednisolone sodium succinate (30 mg/kg bw) was given to 9 pigs one hour after trauma and thereafter every 8th hour during a 72 hour observation period. Two other groups of animals were used for comparison, 13 traumatized, non-treated and 15 non-traumatized, non-treated pigs. Intrapulmonary microembolism was measured quantitatively by repeated external detection of labelled platelets (51Cr) and fibrinogen (125I), sequential chest X-rays and morphologic examination of the lungs post mortem.(ABSTRACT TRUNCATED AT 250 WORDS)

Topics: Animals; Drug Administration Schedule; Female; Fibrin; Fibrinogen; Hemodynamics; Lung; Male; Methylprednisolone; Methylprednisolone Hemisuccinate; Oxygen; Oxygen Consumption; Platelet Count; Pulmonary Embolism; Respiratory Distress Syndrome; Shock, Traumatic; Swine

Topics: Animals; Blood Platelets; Fibrin; Male; Rats; Shock, Traumatic; Splenectomy

Topics: Blood Cell Count; Blood Circulation; Blood Coagulation; Blood Coagulation Disorders; Blood Platelets; Blood Transfusion; Factor V; Factor VIII; Fibrin; Fibrinogen; Fibrinolysis; Humans; Infusions, Parenteral; Pediatrics; Prothrombin; Shock, Hemorrhagic; Shock, Traumatic; Thrombocytopenia; Wounds and Injuries

Topics: Animals; Blood; Blood Platelets; Blood Pressure; Disseminated Intravascular Coagulation; Female; Fibrin; Fibrinogen; Fibrinolysis; Hematocrit; Hemoglobins; Hydrogen-Ion Concentration; Iodine Radioisotopes; Kidney; Liver; Lung; Male; Platelet Adhesiveness; Rabbits; Shock, Hemorrhagic; Shock, Traumatic; Spleen; Time Factors

Topics: Accidents, Traffic; Adolescent; Adult; Aged; Asphyxia Neonatorum; Brain Abscess; Capillaries; Child; Child, Preschool; Fibrin; Heart Arrest; Heart Failure; Humans; Infant; Infant, Newborn; Lung; Macrophages; Meningitis; Microcirculation; Middle Aged; Myocardial Infarction; Pancreatic Diseases; Postoperative Complications; Proteins; Pulmonary Alveoli; Pulmonary Atelectasis; Pulmonary Circulation; Pulmonary Edema; Respiration, Artificial; Respiratory Insufficiency; Shock, Traumatic; Suicide; Tetanus

Topics: Animals; Blood Cell Count; Blood Platelets; Body Temperature; Fibrin; Fibrinogen; Hematocrit; Hindlimb; Histological Techniques; Neodymium; Rats; Shock, Traumatic; Shwartzman Phenomenon; Tourniquets

Topics: Animals; Blood Pressure; Capillaries; Cardiac Output; Dogs; Electrocardiography; Escherichia coli Infections; Fibrin; Heart Rate; Hypotension; Microscopy, Electron; Respiration; Shock, Hemorrhagic; Shock, Septic; Shock, Traumatic