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Journal:   IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ)   2013 , Volume 15 , Number 1; Page(s) 18 To 20.
 
Paper: 

Successful Management Of Total Knee Replacement In A High Responder Hemophilia Patient With A History Of Inhibitor

 
 
Author(s):  Dolatkhah Roya, Bazavar Mohammadreza*, Poureisa Masoud, Asvadi Kermani Iraj, Vaez Gharamaleki Jalil, Sanaat Zohreh, Eivazi Ziaei Jamal, Nikanfar Alireza, Esfahani Ali, Chavoshi Seyed Hadi
 
* DEPARTMENT OF ORTHOPEDIC, TABRIZ UNIVERSITY OF MEDICAL SCIENCES, TABRIZ, IR IRAN
 
Abstract: 
The development of inhibitors against administered clotting factors may render replacement therapy ineffective for some hemophilia patients. Such patients are therefore at the highest risk of developing arthropathy. Elective orthopedic surgery (EOS) in hemophilic patients having such inhibitors remains a rare, expensive, and difficult surgery, whose management represents a significant challenge. We report the case of a 35-year-old man with a severe form of hemophilia A (factor VIII<1%), who was suffering from repetitive spontaneous hemarthrosis, especially in his knee joints that had consequently become more susceptible to bleeding. The patient had a history of high levels of factor VIII inhibitor (>5.0 Bethesda Unit [BU]/ml) as shown by the factor VIII inhibitor assay; therefore, we began treatment with factor VIIa for his mildto- moderate bleeding (90 mg/kg intravenous bolus injections). The interval between injections varied with the severity of the hemorrhage in each bleeding episode. The inhibitor level reduced to 3.1 BU/ml after three months, to 1.6 BU/ml after six months, and disappeared completely after one year of treatment. We administered factor VIII at a dose of 50 IU/kg every eight hours during the first three post-operative days, then continued administration with a dose of 40 IU/kg every 12 hours for another four days, and observed a very good response to treatment with no bleeding. Recombinant activated factor VII (rFVIIa) is not an inhibitor-removal strategy, but an inhibitor-bypassing product. However, in our patient, the treatment of mild-to-moderate bleeding with short-term use of rFVIIa and no exposure to factor VIII caused a gradual reduction in the inhibitor level over a period of 1 year.
 
Keyword(s): ORTHOPEDICS, HEMOPHILIA A, HEMOPHILIA B, INHIBITOR
 
 
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APA: Copy

DOLATKHAH, R., & BAZAVAR, M., & POUREISA, M., & ASVADI KERMANI, I., & VAEZ GHARAMALEKI, J., & SANAAT, Z., & EIVAZI ZIAEI, J., & NIKANFAR, A., & ESFAHANI, A., & CHAVOSHI, S. (2013). SUCCESSFUL MANAGEMENT OF TOTAL KNEE REPLACEMENT IN A HIGH RESPONDER HEMOPHILIA PATIENT WITH A HISTORY OF INHIBITOR. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ), 15(1), 18-20. https://www.sid.ir/en/journal/ViewPaper.aspx?id=411185



Vancouver: Copy

DOLATKHAH ROYA, BAZAVAR MOHAMMADREZA, POUREISA MASOUD, ASVADI KERMANI IRAJ, VAEZ GHARAMALEKI JALIL, SANAAT ZOHREH, EIVAZI ZIAEI JAMAL, NIKANFAR ALIREZA, ESFAHANI ALI, CHAVOSHI SEYED HADI. SUCCESSFUL MANAGEMENT OF TOTAL KNEE REPLACEMENT IN A HIGH RESPONDER HEMOPHILIA PATIENT WITH A HISTORY OF INHIBITOR. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ). 2013 [cited 2022August08];15(1):18-20. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=411185



IEEE: Copy

DOLATKHAH, R., BAZAVAR, M., POUREISA, M., ASVADI KERMANI, I., VAEZ GHARAMALEKI, J., SANAAT, Z., EIVAZI ZIAEI, J., NIKANFAR, A., ESFAHANI, A., CHAVOSHI, S., 2013. SUCCESSFUL MANAGEMENT OF TOTAL KNEE REPLACEMENT IN A HIGH RESPONDER HEMOPHILIA PATIENT WITH A HISTORY OF INHIBITOR. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ), [online] 15(1), pp.18-20. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=411185.



 
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