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Recurrent pulmonary embolism associated with deep venous thrombosis diagnosed as protein s deficiency owing to a novel mutation in PROS1: A case report.


ABSTRACT: Protein S (PS) deficiency that can be inherited or acquired is an independent risk factor for venous thromboembolism (VTE).In this report, we present a case of recurrent pulmonary embolism (PE) and deep venous thrombosis (DVT) due to PS deficiency.A 32-year-old male patient with significant decrease in PS activity was detected by laboratory tests. Genetic examination of the PROS1 gene showed a transition of G to T in exon 14 (c.1792 G>T, p.E598X), which was a paternal inherited heterozygous G1792T substitution in the laminin G-type repeat domain, generating a premature stop codon at Glu598.We considered that the inherited PS deficiency due to a PROS1 gene mutation may associate with recurrent VTE. The patient was suggested to have an extended anticoagulant therapy to avoid a severe VTE event.The patient was discharged home with continued oral anticoagulants and was still seen in clinic for follow-up.It is necessary for the young patient with recurrent idiopathic thrombosis to perform an inherited PS deficiency test and receive anticoagulant therapy for an extended period.

SUBMITTER: Huang X 

PROVIDER: S-EPMC5959418 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Recurrent pulmonary embolism associated with deep venous thrombosis diagnosed as protein s deficiency owing to a novel mutation in PROS1: A case report.

Huang Xiaojie X   Xu Fangfang F   Assa Carmel Rebecca CR   Shen Laigen L   Chen Bing B   Liu Zhenjie Z  

Medicine 20180501 19


<h4>Rationale</h4>Protein S (PS) deficiency that can be inherited or acquired is an independent risk factor for venous thromboembolism (VTE).<h4>Patient concerns</h4>In this report, we present a case of recurrent pulmonary embolism (PE) and deep venous thrombosis (DVT) due to PS deficiency.<h4>Diagnoses</h4>A 32-year-old male patient with significant decrease in PS activity was detected by laboratory tests. Genetic examination of the PROS1 gene showed a transition of G to T in exon 14 (c.1792 G>  ...[more]

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