Unusual bleeding manifestations in a case of primary amyloidosis with factor X deficiency but elevations of in vivo markers of thrombin formation and activity

Magda Marcatti, Simona Mauri, Moreno Tresoldi, Maria G. Sabbadini, Silvana Vigano'D'Angelo, Omid Safa, Claudio Rugarli, Armando D'Angelo

Research output: Contribution to journalArticle

Abstract

We describe a case of primary amyloidosis (AL) with severe factor X (FX) deficiency in an amateur cyclist presenting with muscular pain at rest and ecchymoses in his legs. No circulating inhibitor of FX was found by mixing studies and there was no deficiency of other vitamin K-dependent coagulation factors and inhibitors or of α2-antiplasmin. Thrombin-time and reptilase time were abnormally prolonged and were not corrected by mixing with normal plasma. Administration of plasma or prothrombin complex concentrate (PCC) were unsuccessful in controlling bleeding: the apparent half-life of transfused FX was 6 minutes. Resting resulted in cessation of muscular pain and bleeding. Renal and cardiac deterioration led the patient to death 3 years after presentation. No further bleeding manifestations did occur during this period. FX levels remained consistently below 3%, but prothrombin fragment 1.2 and thrombin-antithrombin complex - measured at distance from PCC administration and prior to deterioration of renal and cardiac function - were markedly elevated. At autopsy, disseminated amyloidosis was found with sparing of the skeletal muscles and of the skin. This is the first report of increased in vivo prothrombin activation and activity in AL-associated FX deficiency.

Original languageEnglish
Pages (from-to)333-337
Number of pages5
JournalThrombosis Research
Volume80
Issue number4
DOIs
Publication statusPublished - Nov 15 1995

Fingerprint

Factor X Deficiency
Factor X
Thrombin
Thrombin Time
Amyloidosis
Hemorrhage
Vitamin K Deficiency
Ecchymosis
Kidney
Pain
Antifibrinolytic Agents
Blood Coagulation Factors
Prothrombin
Half-Life
Autopsy
Leg
Skeletal Muscle
Skin
Primary amyloidosis
prothrombin complex concentrates

Keywords

  • AL amyloidosis
  • factor X deficiency prothrombin fragment 1.2
  • thrombinantithrombin complex

ASJC Scopus subject areas

  • Hematology
  • Cardiology and Cardiovascular Medicine

Cite this

Unusual bleeding manifestations in a case of primary amyloidosis with factor X deficiency but elevations of in vivo markers of thrombin formation and activity. / Marcatti, Magda; Mauri, Simona; Tresoldi, Moreno; Sabbadini, Maria G.; Vigano'D'Angelo, Silvana; Safa, Omid; Rugarli, Claudio; D'Angelo, Armando.

In: Thrombosis Research, Vol. 80, No. 4, 15.11.1995, p. 333-337.

Research output: Contribution to journalArticle

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AU - Vigano'D'Angelo, Silvana

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