Correlation between ABO Blood Groups and Spontaneous Bleeding Rates in Severe Haemophilia-A = الارتباط بين مجموعات الدم ABO ومعدلات النزف العفوي في الناعور A- الشديد

2017 ◽  
Vol 53 (3) ◽  
pp. 162-169
Author(s):  
Sagir G. Ahmed ◽  
Modu B. Kagu ◽  
Umma A. Ibrahim
Author(s):  
T. A. Andreeva ◽  
V. Yu. Zorenko ◽  
I. L. Davydkin ◽  
V. N. Konstantinova ◽  
O. E. Zalepukhina ◽  
...  

Relevance.The development of a new recombinant blood coagulation factor VIII preparation is a promising step towards optimizing the treatment of hemophilia A. An introduction of a new medication into clinical practice precedes a clinical trials to evaluate the efficacy and safety.Materials and methods.The efficacy and safety of the domestic recombinant B-domain deleted blood coagulation factor VIII (FVIII) (moroctocog alfa, Octofactor®, JSC “GENERIUM”) were studied in the preventive treatment of 31 patients aged 21 to 52 years with severe haemophilia A. The Octofactor was administered in doses of 40 ± 5 IU/kg 3 times per week at intervals of at least 48 hours for 21 ± 1 weeks.Results.The efficacy of therapy was evaluated in 30 patients, since 1 patient refused to participate in the trial after the first injection of the study medication. There were registered 43 episodes of bleeding among 11 patients in the course of the preventive treatment with Octofactor. The average number of bleeding episodes was 1.4 ± 2.58. There were 43 bleeding episodes, 9 (20.9 %) of them were posttraumatic, 34 (79.1 %) of them were spontaneous. The average number of the spontaneous bleeding episodes (a major criterion of the efficacy) was 1.13 ± 2.19, which showed a low incidence of exacerbations of the hemorrhagic syndrome in the course of preventive treatment with Octofactor. Among all registered bleeding episodes there were 6 (14 %) mild episodes, 37 (86 %) moderate episodes. Among all spontaneous bleedings there were 6 mild episodes (17.6 %), 28 (82.4 %) moderate episodes. All posttraumatic bleedings were moderate. The vast majority (36, or 83.7 %) of bleeding episodes were stopped with administration of the Octofactor. The average number of administrations of the Octofactor for arresting 1 bleeding episode was 1.2 ± 0.56, for 1 spontaneous bleeding episode – 1.2 ± 0.59. On average, it was required to administer 3534.9 ± 2329.02 IU of the Octofactor to stop 1 episode of bleeding. In the vast majority of patients with severe hemophilia A (83.3–86.7 %),  the remaining activity FVIII was 1 % or more after the administration of the Octofactor in 48 hours. The total amount of the Octofactor, introduced for the prevention of bleeding, was 6,107,000 IU, to stop bleeding – 152,000 IU. The safety of therapy was evaluated in 31 patients. There were recorded 25 adverse events (AE) in 17 patients. Among them the laboratory ones prevailed in 23 (92 %) cases, which is not associated with the use of the trial medication. There were noted nausea and an unpleasant aftertaste in the mouth in 1 patient during the first administration of the Octofactor, and therefore he refused to continue to participate in the trial. Causality 2 AE with the study drug was regarded as definite. Such AE are expected and described in the instructions to the preparation. All AE were not serious and mild and resolved without outcomes. There were no presented thromboembolic events and immunogenic reactions.Conclusions.The obtained data testify to the efficacy and safety of the Octofactor both for preventive measures and for stopping bleeding in adult patients with severe hemophilia A.


2017 ◽  
Vol 50 (02) ◽  
pp. 213-216
Author(s):  
Narender Manickavachakan ◽  
Sunderraj Ellur ◽  
Vijay Thomas Mattyoo Joseph ◽  
Jonathan Victor ◽  
Cecil R. Ross

ABSTRACTHaemophilia A is a rare haematological disorder due to deficiency of Factor VIII, causing an abnormal coagulation response to injury. In severe haemophilia A, Factor VIII level is <1%, often manifesting with spontaneous bleeding into joints. Judicious use of recombinant Factor VIII therapy to maintain adequate levels in the intraoperative, immediate and late post-operative periods, together with adjuvant pro-coagulants, can ensure a safe outcome following surgery. We describe the successful management of one such patient suffering from Marjolin's ulcer of the right gluteal region, who needed wide local excision followed by flap cover. A protocol for management of such patients is also suggested. This is the first such case report from the Indian subcontinent, with only a few such published reports from the West.


2016 ◽  
Vol 3 (2) ◽  
pp. 50-54 ◽  
Author(s):  
Sagir G. Ahmed ◽  
Umma A. Ibrahim ◽  
Modu B. Kagu ◽  
Usman A. Abjah

Abstract Haemophilia A is an X-linked recessive disorder associated with deficiency of coagulation factor VIII and lifelong bleeding diathesis. Sickle cell trait (SCT) is the heterozygous state for the sickle β-globin gene. The frequency of SCT is up to 30% in Africa, wherein it confers survival advantage by providing resistance against severe malaria. SCT does not cause vaso-occlusive crisis, but is associated with high risk of venous thromboembolism as variously reported in the literature. We consider SCT as a hypercoagulable prothrombotic state and hypothesise that coinheritance of SCT may ameliorate the clinical phenotype of severe haemophilia. We conducted a retrospective analysis of frequencies of spontaneous bleeding among severe haemophiliacs with SCT (Hb AS phenotype) and their counterparts with normal Hb phenotype (Hb AA phenotype) in order to determine the possible ameliorating effect of SCT on spontaneous bleeding rates in severe haemophilia A. If our hypothesis is correct, severe haemophiliacs with SCT will have lower frequencies of spontaneous bleeding than their counterparts with normal Hb phenotype. Our results revealed that severe haemophiliacs with normal Hb phenotype had significantly higher mean annual bleeding episodes per patient in comparison with their counterparts with SCT (45±7 vs 31±5, p=0.033), suggesting that severe haemophiliacs with SCT had lower frequencies of spontaneous bleeding episodes. The result of this study indicates that coinheritance of SCT in patients with severe haemophilia may be associated with reduced frequency of spontaneous bleeding, which may imply better overall prognosis. However, the study has important limitations, which include its retrospective nature and the very low number of subjects. The findings should therefore be validated by a larger and prospective study.


2009 ◽  
Vol 29 (02) ◽  
pp. 151-154 ◽  
Author(s):  
Escuriola Ettingshausen ◽  
R. Linde ◽  
G. Kropshofer ◽  
L.-B. Zimmerhackl ◽  
W. Kreuz ◽  
...  

SummaryThe development of neutralizing alloanti-bodies (inhibitors) to factor VIII (FVIII) is one of the most serious complications in the treatment of haemophiliacs. Inhibitors occur in approximately 20 to 30% of previously untreated patients (PUPs), predominantly children, with severe haemophilia A within the first 50 exposure days (ED). Immune tolerance induction (ITI) leads to complete elimination of the inhibitor in up to 80% of the patients and offers the possibility to restore regular FVIII prophylaxis. However, patients with high titre inhibitors, in whom standard ITI fails, usually impose with high morbidity and mortality and therefore prompting physicians to alternate therapy regimens. Rituximab, an anti-CD 20 monoclonal antibody has been successfully used in children and adults for the management of B-cell mediated disorders. We report on the use of a new protocol including rituximab in two adolescents with severe haemophilia A and high titre inhibitors, severe bleeding tendency and high clotting factor consumption after failing standard ITI. Both patients received a concomitant treatment with FVIII according to the Bonn protocol, cyclosporine A and immunoglobulin. Treatment with rituximab resulted in a temporary B-cell depletion leading to the disappearance of the inhibitor. FVIII recovery and half-life turned towards normal ranges. In patient 1 the inhibitor reappeared 14 months after the last rituximab administration. In patient 2 complete immune tolerance could be achieved for 60 months. Bleeding frequency diminished significantly and clinical joint status improved in both patients. In patient 1 the treatment course was complicated by aspergillosis and hepatitis B infection. Conclusion: Rituximab may be favourable for patients with congenital haemophilia, high-titre inhibitors and a severe clinical course in whom standard ITI has failed. Prospective studies are required to determine safety, efficacy and predictors of success.


2010 ◽  
Vol 30 (S 01) ◽  
pp. S115-S118
Author(s):  
C. Moorthi ◽  
A. Bade ◽  
C. Niekrens ◽  
G. Auerswald ◽  
K. Haubold

SummarySevere haemophilia A was diagnosed postpartum in a newborn. The mother was known as a conductor (intron 22 inversion) and an uncle had a persistently high titer inhibitor after failed ITI.Due to a cephalhaematoma, a high-dose pdFVIII substitution was given within the first days after birth. At the age of six month a severe cerebral haemorrhage occurred, making a high-dose pdFVIII substitution and neurosurgical intervention necessary. Several days later a porth-a-cath-system was implanted. The development of a high titer inhibitor occured six days later, an ITI was started according to the Bonn Protocol. Initially rFVIIa was given in addition to the pdFVIII substitution. Seven days after the beginning of treatment the inhibitor was no longer detectable. At monthly intervals the FVIII dosage was reduced until the dosage complied with a prophylaxis in severe haemophilia A.The duration of the ITI was nine months. A total of 30 mg rFVIIa and 276 000 IU pdFVIII were used; costs in total: 280 173.60 Euro.


1996 ◽  
Vol 75 (06) ◽  
pp. 978-978 ◽  
Author(s):  
Theodora Glaub ◽  
Bela Telek ◽  
Zoltan Boda ◽  
Sandor Szabo ◽  
Geza Krall ◽  
...  

1976 ◽  
Vol 35 (03) ◽  
pp. 510-521 ◽  
Author(s):  
Inga Marie Nilsson

SummaryThe incidence of living haemophiliacs in Sweden (total population 8.1 millions) is about 1:15,000 males and about 1:30,000 of the entire population. The number of haemophiliacs born in Sweden in 5-year periods between 1931-1975 (June) has remained almost unchanged. The total number of haemophilia families in Sweden is 284 (77% haemophilia A, 23% haemophilia B) with altogether 557 (436 with A and 121 with B) living haemophiliacs. Of the haemophilia A patients 40 % have severe, 18 % moderate, and 42 % mild, haemophilia. The distribution of the haemophilia B patients is about the same. Inhibitors have been demonstrated in 8% of the patients with severe haemophilia A and in 10% of those with severe haemophilia B.There are 2 main Haemophilia Centres (Stockholm, Malmo) to which haemophiliacs from the whole of Sweden are admitted for diagnosis, follow-up and treatment for severe bleedings, joint defects and surgery. Minor bleedings are treated at local hospitals in cooperation with the Haemophilia Centres. The concentrates available for treatment in haemophilia A are human fraction 1-0 (AHF-Kabi), cryoprecipitate, Antihaemophilic Factor (Hyland 4) and Kryobulin (Immuno, Wien). AHF-Kabi is the most commonly used preparation. The concentrates available for treatment in haemophilia B are Preconativ (Kabi) and Prothromplex (Immuno). Sufficient amounts of concentrates are available. In Sweden 3.2 million units of factor VIII and 1.0 million units of factor IX are given per year. Treatment is free of charge.Only 5 patients receive domiciliary treatment, but since 1958 we in Sweden have practised prophylactic treatment of boys (4–18 years old) with severe haemophilia A. At about 5-10 days interval they receive AHF in amounts sufficient to raise the AHF level to 40–50%. This regimen has reduced severe haemophilia to moderate. The joint score is identical with that found in moderate haemophilia in the same age groups. For treatment of patients with haemophilia A and haemophilia B complicated by inhibitors we have used a large dose of antigen (factor VIII or factor IX) combined with cyclophosphamide. In most cases this treatment produced satisfactory haemostasis for 5 to 30 days and prevented the secondary antibody rise.


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