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Factor XI deficiency case reports on congenital and acquired Hemophilia C - A case report


1 Department of Haematology and Clinical Pathology, Apollo Hospitals, Chennai, Tamil Nadu, India
2 Department of Clinical Haematology, Apollo Hospitals, Chennai, Tamil Nadu, India

Correspondence Address:
Mamta Soni,
Department of Haematology and Clinical Pathology, Apollo Hospitals, 21 Greams Lane, Off Greams Road, Chennai - 600 031, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/am.am_108_22

Introduction: Factor XI deficiency or hemophilia C is a very rare coagulation factor deficiency, with a global incidence of 1 in 1 million. Although it is an under-recognized entity, it can cause significant bleeding, resulting in life-threatening complications. Materials and Methods: Coagulation parameters were analyzed using a Sysmex CS-2400 coagulation analyzer. Factor XI levels were detected using Factor XI deficient plasma from Siemens. Activated Partial Thromboplastin Time (APTT) testing was performed using Actin FSL from Siemens. Results: Here, we report the two cases of Factor XI deficiency, one genetic and the other a very rare acquired deficiency due to sepsis, detected during the workup of an isolated APTT prolongation. Conclusion: Factor XI deficiency is a rare bleeding disorder that presents as prolonged isolated APTT. Careful clinical evaluation and complete coagulation workup are necessary for the efficient management of patients, which can prevent life-threatening events.


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    -  Muralikrishnan S
    -  Sundaram S
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