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Thrombotic Microangiopathies In Systemic Lupus Erythematosus

Dr. Laurent ARNAUD @Lupusreference

#TMAs #Thrombotic #Microangiopathies #Systemic #Lupus #Erythematosus #SLE #hematology
Lupusreference #TMAs ... Erythematosus #SLE ... #hematology #rheumatology ... #differential #diagnosis
Thrombotic Microangiopathy - TTP VS HUS

Big picture points : Often hard to differentiate the two entities,
distinction has HUGE treatment ... and first-line treatment ... Microangiopathy #thrombocytopenic ... #Comparison #Diagnosis ... #Table #Hematology
Thrombotic Microangiopathy - TMAs
1. Not all MAHAs are due to TMAs but (almost) all TMAs cause
Microangiopathy - TMAs ... MAHAs are due to TMAs ... triad of MAHA + thrombocytopenia ... catastrophic APS, SRC, SLE ... #hematology #diagnosis
Treatment of Thrombotic Thrombocytopenic Purpura (TTP)
Diagnosis of TTP:
 • Rare and severe, ADAMTS13 deficiency
 • Autoimmune
Thrombocytopenic ... Purpura (TTP) Diagnosis ... soon as TTP is diagnosed ... TTP Thrombotic #Thrombocytopenic ... #rheumatology #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential Diagnosis ... Autoimmune • ITP • SLE ... #Differential #Diagnosis ... Algorithm #Causes #Hematology
Hypereosinophilia (HE) Summary

 • Definition
 • When to Suspect?
 • A Partial Classification of Hypereosinophilia
 •
• A Partial Classification ... Hypereosinophilia • Diagnostic ... Presentations • Treatment ... Hypereosinophilia #HE #hematology ... #diagnosis #management
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... - Differential Diagnosis ... - Autoimmune: SLE ... #Differential #Diagnosis ... #Framework #hematology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... domain: Leukopenia, Thrombocytopenia ... #Criteria #SLE ... Erythematosus #diagnosis ... #rheumatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
erythematosus [SLE ... leukopenia, anemia, and thrombocytopenia ... Treatment: • Corticosteroids ... Activation #Syndrome #Diagnosis ... #Rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Systemic Lupus (SLE ... Leucopenia/lymphopenia, Thrombocytopenia ... #Lupus #SLE #systemic ... signs #symptoms #diagnosis ... #rheumatology