Biomaterial Database

Spontaneous resolution of acquired factor X deficiency in amyloidosis. 1993

A le Quellec, and A Sotto, and A J Ciurana

Department of Internal Medicine A, Saint-Eloi Hospital, Montpellier, France.

We describe the case of a 51-year-old man with systemic amyloidosis in whom factor X activity was initially 6% of the normal. Amyloidosis was responsible for congestive heart failure and a nephrotic syndrome but there was no bleeding diathesis. A 12-month trial of melphalan and prednisone failed to improve cardiac and renal dysfunction; factor X levels remained low. Eighteen months after this treatment was stopped, factor X spontaneously normalized although renal insufficiency persisted. We suggest that the possibility of a spontaneous factor X recovery must be considered when evaluating efficacy of therapeutic agents in amyloidosis.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D012075	Remission, Spontaneous	A spontaneous diminution or abatement of a disease over time, without formal treatment.	Spontaneous Healing,Spontaneous Regression,Spontaneous Remission,Healing, Spontaneous,Regression, Spontaneous,Spontaneous Healings,Spontaneous Regressions
D005171	Factor X Deficiency	Blood coagulation disorder usually inherited as an autosomal recessive trait, though it can be acquired. It is characterized by defective activity in both the intrinsic and extrinsic pathways, impaired thromboplastin time, and impaired prothrombin consumption.	Deficiency, Factor 10,Deficiency, Factor Ten,Deficiency, Factor X,Deficiency, Stuart-Prower,Deficiency, Stuart-Prower Factor,Factor 10 Deficiency,Factor Ten Deficiency,Stuart-Prower Deficiency,Stuart-Prower Factor Deficiency,Deficiencies, Factor 10,Deficiencies, Factor Ten,Deficiencies, Factor X,Deficiency, Stuart Prower,Deficiency, Stuart Prower Factor,Factor 10 Deficiencies,Factor Ten Deficiencies,Factor X Deficiencies,Stuart Prower Deficiency,Stuart Prower Factor Deficiency,Ten Deficiencies, Factor
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000686	Amyloidosis	A group of sporadic, familial and/or inherited, degenerative, and infectious disease processes, linked by the common theme of abnormal protein folding and deposition of AMYLOID. As the amyloid deposits enlarge they displace normal tissue structures, causing disruption of function. Various signs and symptoms depend on the location and size of the deposits.	Amyloidoses