Results 221 to 230 of about 97,001 (288)

Correlation Between Activated Clotting Time and Activated Partial Thromboplastin Times

The Annals of Pharmacotherapy, 2002
OBJECTIVE: To evaluate the correlation between clotting time tests and heparin concentration, the correlation between activated clotting time (ACT) and activated partial thromboplastin time (aPTT) results, and to compare the clinical decisions based on ACT results with those based on aPTT results.
Maureen A, Smythe, John M, Koerber, Sandra N, Nowak, Joan C, Mattson, Robert L, Begle, Susan J, Westley, Mamtha, Balasubramaniam   +6 more
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Activated Partial Thromboplastin Time and Minor Coagulopathies

American Journal of Clinical Pathology, 1979
Five commercially available activated partial thromboplastin time (APTT) test systems were compared with the kaolin partial thromboplastin time (KPTT) method to determine sensitivity in detecting minor coagulation defects. All reagent systems detected severe factor VIII-, IX-, and XI-deficient hemophilia.
W E, Hathaway, S L, Assmus, R R, Montgomery, A S, Dubansky   +3 more
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Abnormal activated partial thromboplastin time and malignancy

Scottish Medical Journal, 2011
Malignancy often results in clotting abnormalities. The aetiology of haemostasis problems in cancer is complex, and is still not completely understood. We describe a case of a patient with malignant mesothelioma, who was found to have elevated activated partial thromboplastin time, due to lupus anticoagulant.
M, Delicata, H, Hambley
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Extremely Shortened Activated Partial Thromboplastin Times

JAMA: The Journal of the American Medical Association, 1980
To the Editor.— The presence of a hypercoagulable state in patients with a shortened activated partial thromboplastin time (APTT) as manifested by the clinical association with an increased incidence of thromboembolic disease has previously been reported by Hume, 1 Gallus et al, 2 Pilgeram, 3 McKenna et al, 4 and McKenna et al.
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Spurious Prolongation of the Activated Partial Thromboplastin Time

Thrombosis and Haemostasis, 1977
SummaryThe clinical and laboratory data of 8 patients (4 males and 4 females) with circulating anticoagulant were presented. Based on prolonged APTT, failure to correct the APTT with 50 % normal plasma and abnormal tissue thromboplastin inhibition test, the inhibitor was identified as “middle stage” – or the “lupus anticoagulant”.
R A, Okpara, J A, Carabello, H J, Day
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Shortened activated partial thromboplastin time: causes and management

Blood Coagulation & Fibrinolysis, 2010
Throughout the long history of the hemostasis laboratory, and as an evaluation of the coagulation cascade, the results of the activated partial thromboplastin time (APTT) have primarily been considered as an index of loss-of-function and rarely as an index of gain-of-function.
LIPPI, Giuseppe, SALVAGNO, GIAN LUCA, Ippolito L, Franchini M, Favaloro E.J.   +4 more
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Comparison of Several Activated Partial Thromboplastin Time Methods

American Journal of Clinical Pathology, 1975
Activated partial thromboplastin times (APTT's) performed with a semi-automated electrical-conductivity type of clot timer on plasmas from patients with hepatic disease and intravascular coagulation, and on warfarin or heparin therapy, were significantly lower than when done on the same plasmas with either a manual optical method or an automated ...
R J, Morin, D, Willoughby
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Monitoring Direct Thrombin Inhibitors With Calibrated Diluted Thrombin Time vs Activated Partial Thromboplastin Time in Pediatric Patients.

American Journal of Clinical Pathology, 2022
R. Hasan, Jennifer Pak, C. Kirk, Joshua M. Friedland-Little, W. Chandler   +4 more
semanticscholar   +1 more source

Comparison of Activated Partial Thromboplastin Time Reagents

Laboratory Medicine, 1988
This study compared two activated partial thromboplastin time (aPTT) reagents with respect to their sensitivity for detection of factor deficiencies in the intrinsic pathway of coagulation and to heparin concentration. Significant differences were found with respect to the ability of the reagents to detect intrinsic factor deficiencies.
Joseph T. Pedersen, Matthew R. Pincus, Judith A. Rapiejko   +2 more
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Use of the Activated Partial Thromboplastin Time

Annals of Internal Medicine, 1988
Excerpt To the Editor:In connection with a recent article (1), I pose a question. Should peridural anesthesia in women with otherwise normal bleeding history be preceded by coagulation tests to pre...
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