Document Detail


Hageman factor deficiency presentation and implications for management.
MedLine Citation:
PMID:  1424610     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
One of the more fascinating aspects of patient management arises when dealing with coagulation disorders. Factor XII deficiency, first described by Ratnoff in 1968, is one such coagulation disorder which provides some interesting challenges in management. Factor XII deficiency has been shown to be an inherited autosomal recessive disorder. The presence of Hageman factor abnormality trait can be clinically suspected in a patient with a prolonged activated partial thromboplastin time (APTT), normal prothrombin time (PT), normal bleeding time, and no clinical history of bleeding. Once suspected, the deficiency can be confirmed by normalization of partial thromboplastin time (PTT) with normal aged plasma and by factor assay. The importance of understanding the mechanism of factor XII deficiency has clinical significance when attempts are made to heparinize individuals who have this deficiency. Three methods can be used to monitor therapy: the chromogenic heparin assay, the citrated thrombin time, and the recalcified thrombin time. Two cases are presented.
Authors:
K Harper; M L Friedland
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Connecticut medicine     Volume:  56     ISSN:  0010-6178     ISO Abbreviation:  Conn Med     Publication Date:  1992 Sep 
Date Detail:
Created Date:  1992-12-22     Completed Date:  1992-12-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0372745     Medline TA:  Conn Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  469-71     Citation Subset:  IM    
Affiliation:
St. Vincent's Medical Center, Bridgeport.
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Factor XII / analysis
Factor XII Deficiency / diagnosis,  therapy*
Female
Heparin / blood
Humans
Middle Aged
Partial Thromboplastin Time
Thrombin Time
Chemical
Reg. No./Substance:
9001-30-3/Factor XII; 9005-49-6/Heparin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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