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At least 631 records · Page 35Linked to original sources
PubMed1982

Inherited deficiency of antithrombin III in two Italian families. Different response to oral anticoagulant treatment.

A significant decrease of plasma antithrombin III (AT III) levels, measured with four different biological and immunological methods, was found in 8 of 11 members of a Sicilian family (family DM) and in 3 of 14 members of a northern Italian family (family A). Different behaviour after oral anticoagulant treatment with acenocoumarin was seen in 2 long-term treated subjects. The propositus of family DM, who had had a long history of recurrent thrombosis, did not show any increase of AT III levels. A significant increase was, on the contrary, observed in the propositus of family A, who had suffered a recent thrombosis in a branch of the inferior mesenteric vein.

Acenocoumarol↗
PubMed1984

Studies on PIVKA VII.

In 30 subjects on stabilized oral anticoagulant treatment, factor VII activity (VII:C) and factor VII antigen (VII:Ag) were evaluated. The average VII:C and VII:Ag levels were 8.7 and 30.7, respectively. All plasma samples were treated with 1 M barium chloride: all the activity and a corresponding average amount of antigen were adsorbed by the salt. The cold-promoted activation of factor VII was found in 5/30 subjects. Corresponding amounts of VII:C and VII:Ag were also removed from the plasma of these subjects after cold activation following the addition of barium chloride. It clearly results from these studies that a portion of VII:Ag cannot be adsorbed by barium chloride because of a reduction (or a lack) of the gamma-carboxyglutamic groups. This portion of VII:Ag can therefore be identified as Pivka VII.

Acenocoumarol↗
PubMedDate not supplied

Successful administration of low molecular weight heparin in a patient with heparin-induced thrombocytopenia and coumarin-induced skin necrosis.

A case of heparin-induced thrombocytopenia and skin necrosis induced by coumarin is reported in a 58-year-old female patient suffering from metastatic breast adenocarcinoma and deep vein thrombosis. The thrombosis resolved after treatment with low molecular weight heparin and the thrombocytopenia recovered within a few days. The occurrence of both these rare complications in the same patient has not been previously reported in the literature. We present a review of these complications and their current treatment.

Acenocoumarol↗
PubMed1989

Maculopapular rash due to coumarin derivatives.

The case history is presented of a patient who developed a maculopapular rash following treatment with 3 different coumarin derivatives. Apparently cross-sensitivity between coumarin derivatives may occur.

Acenocoumarol↗
PubMed1993

The risk of emergency intestinal bleeding among users of acenocoumarin: a population-based cohort study.

In spite of a 10-13 fold increased risk of bleeding, standard doses of coumarin with a target prothrombin time of 2.7-4.5 INR (International Normalized Ratio) are chronically used in the Netherlands by 4-5% of the adult population forty to eighty years old, mainly for the secondary prevention of myocardial infarction. The Dutch Thrombosis Services, who monitor these patients, use less rigorous criteria than the standard studies do. It would not, therefore, be too much of a surprise if the numbers of bleeding complications in practice would be much higher than expected from the standard papers so far. To answer this question the authors studied emergency intestinal bleedings in a population-based cohort study of chronic acenocoumarin users (813 person years) and their age-matched and population-based controls (17,620 person years). Of 142 first bleedings serious enough to require immediate sigmoidoscopy, 35 were connected with acenocoumarin (25%). The overall incidences in the acenocoumarin cohort and the age-matched controls were, respectively, 4.3 and 0.6 bleedings/100 person years, RR (relative risk) 7.09, p < 0.0001. Relative Risk (RR) = Incidence Among Exposed/Incidence Among Nonexposed The acenocoumarin bleeders and their controls had symmetric clinical diagnoses and levels of hemoglobin. However, acenocoumarin bleeders were significantly older and more frequently males. The sex- and age-adjusted RRs were, however, only slightly different from the crude data, suggesting no major influence of these asymmetries on the overall results. Prothrombin times in the acenocoumarin bleeders were frequently higher than the target range.(ABSTRACT TRUNCATED AT 250 WORDS)

Acenocoumarol↗
PubMed2000

A reversible bilateral renal artery stenosis in association with antiphospholipid syndrome.

We describe a 26-year-old white female with a history of Raynaud phenomenon, erythema nodosum, polyarthralgias, migraine, vertigo, seizures, transient ischemic attacks, one fetal loss, and false positive VDRL, who developed milk hypertension without overt lupus nephritis. She had positive antinuclear antibodies (ANA) and double-stranded deoxyribonucleic acid (dsDNA) antibodies. The lupus anticoagulant test (LAC) and cardiolipins antibodies (aCL) were positive. She was diagnosed as having a Systemic Lupus Erythematosus-like illness (SLE-like) with 'secondary' antiphospholipid syndrome (APS). Renal spiral computed tomography (CT) with intravenous (IV) contrast showed bilateral renal artery stenosis. Anticoagulation with acenocumarol was started. She became normotensive without antihypertensive drugs five months later. A follow-up renal spiral CT showed complete recanalization of both renal arteries, making thrombosis the more likely culprit pathology in the stenosis. After two years follow up the patient is normotensive. She remains on acenocumarol.

Acenocoumarol↗
PubMed1992

Enhanced anticoagulant effect of coumarin derivatives induced by doxycycline coadministration.

OBJECTIVE: To report two cases of enhanced oral anticoagulant effect induced by doxycycline coadministration. DESIGN: Case report. SETTING: University teaching hospital. PATIENTS: Two patients on chronic oral anticoagulation therapy who presented with severe bleeding and marked impairment in blood coagulation tests shortly after the initiation of doxycycline therapy. DISCUSSION: The literature concerning the possible effects of tetracyclines on hemostasis with or without antecedent anticoagulation therapy is reviewed and the speculated mechanisms for such an interaction are discussed. CONCLUSIONS: The administration of tetracyclines such as doxycycline to patients on chronic oral anticoagulation therapy may be associated with a marked enhancement in anticoagulant effect. In such patients the prothrombin ratio should be closely monitored and the anticoagulant dosage adjusted accordingly.

Acenocoumarol↗
PubMed1986

Investigation of drug interactions with pinaverium bromide.

A series of studies was carried out at 6 centres to investigate possible drug interaction between the spasmolytic, pinaverium bromide, and cardiac glycosides, anticoagulants and hypoglycaemic agents given to patients as part of the long-term treatment of their condition. The results of clinical and laboratory investigations did not show any evidence of pinaverium bromide interfering with the action or activity of any of the drugs studied.

Acenocoumarol↗
PubMed2006

Multifocal avascular necrosis after liver transplantation: an unusual presentation of the antiphospholipid syndrome.

We describe the case of a 31-year-old man who presented with an antiphospholipid syndrome (APS), which manifested as multifocal avascular necrosis (AVN) one year after orthotopic liver transplantation. The patient developed multiple AVN affecting hips, left knee, humerus and tarsal bones just after withdrawal of corticosteroid therapy. Three years later when lupus anticoagulant was detected, he began anticoagulant treatment and no further AVN episodes were observed. It is important to be aware of this clinical manifestation of APS, especially in these cases where it can be easily overlooked because of corticosteroid therapy.

Acenocoumarol↗