scholarly journals Low-dose low–molecular-weight heparin is anti-inflammatory during venous thrombosis

1998 ◽  
Vol 28 (5) ◽  
pp. 848-854 ◽  
Author(s):  
L.Joseph Downing ◽  
Robert M. Strieter ◽  
Amy M. Kadell ◽  
Carol A. Wilke ◽  
Lazar J. Greenfield ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Venous Thrombosis ◽  
Low Molecular Weight Heparin ◽  
Low Dose ◽  
Low Molecular Weight ◽  
Anti Inflammatory

Thromboprophylaxis in Multiple Myeloma: Indian Perspective

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 5207-5207
Author(s):  
Velu Nair ◽  
Satyaranjan Das ◽  
Ajay Sharma ◽  
Deepak Kumar Mishra ◽  
Shilajit Bhattacharya ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Multiple Myeloma ◽  
Developing Countries ◽  
Adverse Effects ◽  
Venous Thrombosis ◽  
Low Molecular Weight Heparin ◽  
Low Dose ◽  
Low Molecular Weight ◽  
Dose Aspirin ◽  
Low Dose Aspirin

Abstract Background: Hypercoagulability has been observed in patients of multiple myeloma and has been associated with deep venous thrombosis (DVT). There is growing evidence of increased rate of venous thromboembolism associated with use of thalidomide, an anti angiogenesis drug, especially when combined with other agents such as dexamethasone and doxorubicin. Currently there is no consensus on the most appropriate prophylactic approach for thrombotic episodes in patients of multiple myeloma treated with thalidomide containing regimen. Although newer thalidomide derivatives with less thrombogenic adverse effects are being used in the developed countries, in developing countries like India due to financial constraints thalidomide remains the 1st line drug for multiple myeloma. Further there are scant reports of multiple myeloma related thrombosis and thrombo prophylactic regimen from developing countries. Objectives: To evaluate the incidence of symptomatic as well as asymptomatic thrombosis at onset of the disease as well as during treatment, the efficacy of low dose aspirin and low molecular weight heparin as thromboprophylaxis and their adverse effects in multiple myeloma patients treated with thalidomide and dexamethasone regimen. Patients and Methods: 30 patients of multiple myeloma reporting to our centre from May 2006 to March 2008 comprised the study group. Patient with past history of bleeding, thrombocytopenia and deranged coagulation parameters were excluded from the study. The male to female ratio was 3:2. The median age was 56 years (39–70). 23 patients were de-novo and 7 patients were relapse cases. Before starting therapy in addition to diagnostic and prognostic work up, all patients were evaluated for symptomatic as well as asymptomatic DVT with the help of Color Doppler Flow Index (CDFI) study and d-dimer estimation. Patients were randomized to low dose aspirin (Aspirin 150 mg once a day) and low molecular weight heparin (Enoxapirin 40 mg once a day). All patients were administered dexamethasone pulses of 40 mg once a day from day 1 to 4 in each cycle of 28 days. Thalidomide was started at a dose of 100mg once a day and increased to maximum of 400 mg depending on tolerability (median dose 200 mg). None of the patients received erythropoietin. All patients were evaluated for DVT at the beginning of each cycle during the first three cycles. Thromboprophylaxis was administered for first three cycles only. The response to therapy was evaluated at completion of 3rd and 6th cycles. Criteria for response were as previously reported by Blade et al. Results: The overall response (OR) after 3 cycles was 18/30 (60%), complete response (CR)-10/30(33.3%), partial response (PR)-8/30(26.7%) and after 6 cycles was 22/28 (78.5%), CR-16/28(57.1%), PR-6/28(21.4%). 2 patients who had progressive disease after 3 cycles were changed to Bortezumib containing regimen. Out of 30 patients only one patient (3.3%) a 70 yr old male had deep vein thrombosis at diagnosis which was asymptomatic and the diagnosis was based on CDFI findings. One patient on low dose aspirin had one episode of upper GI bleed on 5th day of the first cycle and thromboprophylaxis was stopped. During the follow up, none of the patient had any evidence of symptomatic as well as asymptomatic DVT. Conclusion: This study suggests that the incidence of venous thrombosis in our cohort of patients were much lower than reported from the west. Both low doses Aspirin as well as low molecular weight heparin are effective agents for thromboprophylaxis. The adverse effects were acceptable. Larger trials would be required to confirm these findings.

Markers of Hemostatic System Activation in Acute Deep Venous Thrombosis-Evolution during the First Days of Heparin Treatment

1993 ◽  
Vol 70 (06) ◽  
pp. 0909-0914 ◽  
Author(s):  
Keyword(s):  
Molecular Weight ◽  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Unfractionated Heparin ◽  
Low Molecular Weight Heparin ◽  
Factor Xa ◽  
Low Molecular Weight ◽  
Dose Adaptation ◽  
Heparin Treatment ◽  
Lung Scan

SummaryFibrin D-Dimer (D-Di), prothrombin activation fragment (F 1+2) and thrombin-antithrombin III complexes (TAT) were measured using ELISA procedures in the plasma of patients with an acute deep venous thrombosis (DVT), at presentation and on days 2, 6 and 10 after initiation of heparin treatment. Patients were randomly allocated into two treatment groups: 44 patients received adapted doses of continuous intravenous unfractionated heparin (UH) whereas 47 received 1 mg/kg every twelve hours of a low molecular weight heparin (enoxaparin) subcutaneously. A phlebography and a perfusion lung scan were performed before inclusion and on day 10. Failure of therapy (n = 9) was defined by venogram worsening or confirmed pulmonary embolism. Improvement (n = 44) or stationary state (n = 38) were defined by venogram evolution in the absence of new leg scan defects.At presentation, D-Di, F 1 + 2 and TAT were above cut-off values in 97, 66 and 89% of patients respectively. D-Di levels correlated with the extent of venous thrombosis whereas TAT and F 1 + 2 did not. Mean levels of D-Di decreased sharply during the first days of treatment but were still abnormal on day 10. A secondary increase of D-Di on days 6 or 10 by more than 3 μg/ml occurred in 4 of the 9 patients who developed a thromboembolic recurrence but in none of the 72 patients who had a more favorable outcome. F 1 + 2 and TAT time-courses were not related to clinical evolution. In the Enoxaparin group, there was no relationship between antifactor Xa activities and any biological markers. TAT and F 1 + 2 levels fell on day 2 and remained stable until day 10. In contrast, in the UH group, TAT and F 1 + 2 did not significantly decrease on day 2, probably due to a delay in dose adaptation, but they declined slowly until day 10.In conclusion, D-Di displays a higher sensitivity than F 1 + 2 or TAT for the diagnosis of D\T. D-Di, but not TAT or F 1 + 2, follow-up seems to be of potential value for early detection of recurrency. Hemostatic activation is controlled earlier by fixed doses of a low molecular weight heparin, irrespective of the plasma anti-factor Xa activities, than by unfractionated heparin at adapted doses.

scholarly journals Unfractionated or Low–Molecular Weight Heparin for the Treatment of Cerebral Venous Thrombosis

Stroke ◽  
2010 ◽  
Vol 41 (11) ◽  
pp. 2575-2580 ◽  
Author(s):  
Jonathan M. Coutinho ◽  
José M. Ferro ◽  
Patrícia Canhão ◽  
Fernando Barinagarrementeria ◽  
Marie-Germaine Bousser ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Venous Thrombosis ◽  
Cerebral Venous Thrombosis ◽  
Low Molecular Weight Heparin ◽  
Low Molecular Weight

scholarly journals Evaluation and Management of Women who Have Experienced Stillbirth in Their Previous Pregnancies

2019 ◽  
pp. 1
Author(s):  
Erdem Fadiloglu ◽  
Atakan Tanacan ◽  
Canan Unal ◽  
Mehmet Sinan Beksac
Keyword(s):  
Risk Factors ◽  
Molecular Weight ◽  
Low Molecular Weight Heparin ◽  
Low Dose ◽  
Methylenetetrahydrofolate Reductase ◽  
Post Partum ◽  
Subsequent Pregnancy ◽  
Low Molecular Weight ◽  
Mthfr Polymorphisms ◽  
The Mean

<p><strong>Objective:</strong> To evaluate the subsequent pregnancy outcomes of women who have experienced unexplained stillbirth in their previous gestations.</p><p><strong>Study Design:</strong> This retrospective cohort consisted of 14 pregnancies who had stillbirth (without known risk factors) in their previous pregnancies. These patients had been included in a special preconceptional care program to be evaluated in terms of etiological risk factors for stillbirth. At least one of the risk factors, such as methylenetetrahydrofolate reductase (MTHFR) polymorphisms, hereditary thrombophilias and autoimmune problems, were defined in this study population. After detection of pregnancy, the patients were administered low-dose low-molecular-weight heparin (LMWH) (enoxaparin, 1×2000 Anti-XA IU/0.2 mL/day), low-dose salicylic acid (100 mg/day) and low-dose corticosteroid (methylprednisolone, 1×4 mg/day orally) in necessary cases.</p><p><strong>Results:</strong> Out of 14 pregnancies, 4 (28.5%) ended up with miscarriages at 9, 11, 11 and 15 gestational weeks, respectively. The remaining 10 pregnancies ended up with alive deliveries. The mean gestational week at birth was 36.4±0.51, while the mean birthweight was 2882±381.01 g. Out of 10 pregnancies, only one was diagnosed as IUGR. Only two newborn necessitated hospitalization in the neonatal intensive care unit (NICU) due to respiratory problems. Both newborns were discharged from the NICU without any further complication at the post-partum 5th day. </p><p><strong>Conclusion:</strong> Patients with a prior stillbirth should be screened for MTHFR polymorphisms, autoimmune problems and hereditary thrombophilias, especially in case of absence of any etiological factor. Management of these patients with low-dose aspirin, low-dose low molecular weight heparin and corticosteroids seemed to be beneficial for increasing live birth rates and avoiding obstetric complications.</p>

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