Adult Vitamin B12 Deficiency-Associated Pseudo-Thrombotic Microangiopathy: A Systematic Review of Case Reports

Author Department

Hospital Medicine; Medicine

Document Type

Article, Peer-reviewed

Publication Date

3-2024

Abstract

Cobalamin-deficient thrombotic microangiopathy or vitamin B12 deficiency presenting as pseudo-thrombotic microangiopathy is a rare disorder that can be misdiagnosed as thrombotic thrombocytopenic purpura. Patients with this condition are at risk of receiving unnecessary plasmapheresis with a potential delay in appropriate therapy with vitamin B12 supplementation. There are no established diagnostic criteria for this condition in clinical practice. We performed a systematic review of case reports published between January 2018 and January 2023 to analyze the clinical characteristics, risk factors, and patterns of laboratory markers to improve the diagnostic criteria for this condition.

Keywords: acquired ttp; cobalamin deficiency; plasmic score; pseudo-tma; pseudo-ttp; vitamin b12 deficiency anemia; vitamin b12 deficiency symptoms.

PMID

38586727

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