Congenital fibrinogen disorders or CFDs are heterogenous, both in clinical manifestation and array of culprit molecular lesions. Correlations between phenotype and genotype remain poorly defined. This review examines the genetic landscape discovered to date for this rare condition. The question of a possible oligogenic model of inheritance influencing phenotypic heterogeneity is raised, with discussion of the benefits and challenges of sequencing technology used to enhance discovery in this space. Considerable work lies ahead in order to achieve diagnostic and prognostic precision and subsequently provide targeted management to this complex cohort of patients.
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http://dx.doi.org/10.1111/bjh.19039 | DOI Listing |
Life (Basel)
November 2024
Onco-Hematology, Cell and Gene Therapy and Bone Marrow Transplant Clinic Area, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy.
Inherited factor VII deficiency is the most common rare bleeding disorder, affecting about 1/500,000 individuals without gender predilection. Most of the patients with FVII 20-50% are asymptomatic, but post-traumatic or post-surgical bleeding may often occur since there is not an exact correlation between FVII plasma levels and the bleeding phenotype. We enrolled 19 children and adolescents with FVII levels of 20-35% and 33 controls.
View Article and Find Full Text PDFJ Clin Lab Anal
December 2024
Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China.
Background: Congenital hypofibrinogenemia, a quantitative fibrinogen disorder, is characterized by abnormally low levels of both functional and antigen fibrinogen. We identified a heterozygous nonsense mutation, p.Arg17Stop, in the fibrinogen Bβ chain of a three-month-old female infant.
View Article and Find Full Text PDFRare bleeding disorders (RBDs) represent 3 to 5% of congenital bleeding disorders and are primarily inherited in an autosomal recessive manner, with increased prevalence in consanguineous populations. Clinically, RBDs can be accompanied by mild to severe bleeding episodes, often assessed using bleeding assessment tools (BATs) such as the International Society on Thrombosis and Hemostasis (ISTH)-BAT. However, the correlation between bleeding severity and coagulation factor activity levels remains inconsistent.
View Article and Find Full Text PDFZhonghua Xue Ye Xue Za Zhi
October 2024
Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China.
Congenital dysfibrinogenemia (CDF) is the most common type of congenital fibrinogen disorders, characterized by dysfunctional fibrinogen. Its prevalence is significantly underestimated due to the absence of obvious clinical symptoms in most patients. In addition to bleeding manifestations, patients with CDF may experience thrombotic events or pregnancy-related complications.
View Article and Find Full Text PDFHaemophilia
November 2024
Faculty of Medicine, Geneva, Switzerland.
Introduction: Rare coagulation disorders (RCDs) constitute an important health risk. Data on epidemiology, quality of life (QoL), access to care, and impact of the ongoing economic crisis on RCDs in Lebanon is limited.
Aim: We aimed to address these gaps by evaluating effect of the crisis on the management of RCDs.
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