The parameters of plasma-platelet component of hemostasis were studied by autocoagulation test in 90 patients with rheumatoid arthritis of varying activity. To specify the role of blood platelets, their counts were estimated, as was their functional activity. Plasma coagulating activity was found elevated and anticoagulating activity reduced in disease of the first and second degrees of activity, particularly so in the second degree. In patients with the third activity degree these parameters are within the normal range. The platelets augment hypercoagulation signs and reduce plasma anticoagulation potential in disease of the third degree of activity most of all. This leads to augmentation of thrombophilia signs, thus creating favorable conditions for intravascular coagulation and formation of microthrombi, which may eventually result in aggravation of rheumatoid synovitis and development of visceritis.
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The parameters of plasma-platelet component of hemostasis were studied by autocoagulation test in 90 patients with rheumatoid arthritis of varying activity. To specify the role of blood platelets, their counts were estimated, as was their functional activity. Plasma coagulating activity was found elevated and anticoagulating activity reduced in disease of the first and second degrees of activity, particularly so in the second degree.
View Article and Find Full Text PDFClin Orthop Relat Res
November 1992
Department of Orthopedic Surgery, Children's Hospital, San Diego, CA 92123.
Complications of posterior spinal instrumentation for adolescent idiopathic scoliosis are often preventable. Preoperative planning helps to minimize intraoperative and postoperative problems. Late recurrence of rotational deformity (crankshaft) in skeletally immature patients can be prevented by adding anterior surgery.
View Article and Find Full Text PDFA new method for estimation of the time course of prothrombinase-thrombin activity is suggested. The method is based on approximation of the autocoagulogram appropriate section to the regression straight line and estimation of the angular coefficient B. This coefficient more accurately reflects the rate of the prothrombinase-thrombin activity growth and decline.
View Article and Find Full Text PDFA study is presented of 63 patients with pulmonary tuberculosis suffering of chronic alcoholism. Examination of the activated recalcification time, thrombin and prothrombin time, plasma fibrinogen level, fibrinolytic activity of the blood, ethanol and protaminsulfate tests, fibrin-stabilizing factor, autocoagulation test revealed in most of these patients significant disorders of the coagulation activity suggesting predisposition to intravascular blood coagulation.
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