Abstract 4684

Immune Thrombocytopenic Purpura or ITP remains a clinical diagnosis of exclusion. There are numerous treatments, attesting to the fallibility of each. A 3 year experience at an Inner City safety net hospital was analyzed. For inclusion in the study, the hematology service had to have excluded consumption disorders, prior chemotherapy, medication known to cause thrombocytopenia and Viral Infection- HIV and/Hepatitis. 93 patients met these criteria and had platelet counts below 50,000. The median age of the whole group was 49 yrs, with a range of 21 to 78 years. A few were ANA positive. The female preponderance reflects the literature.

All Patients were started on Prednisone at 1mg/kg. Three Patients also received IV IGG to hasten the response. There were no intracranial hemorrhages or bleeding described as major.

Demographics

EthnicityNo of ptsMean ageMaleFemaleANA+ ves
African American 36 49 10 26 
Hispanic 35 48 11 24 
White 15 44 
Asian+ 51 
Total 93 30 63 10 
EthnicityNo of ptsMean ageMaleFemaleANA+ ves
African American 36 49 10 26 
Hispanic 35 48 11 24 
White 15 44 
Asian+ 51 
Total 93 30 63 10 

+These Patients are all from Middle East and Sub-Continent.

Patients from the Far East had to be excluded for Hepatitis Virus exposure.

Results
I. Treatment not Required (Counts adequate) 35 
II. Started on Steroids 58 
    Good Response 44 
        Eventually weaned off + 14 
        Relapsed but again responded to Steroids 12 
        Relapsed but did not respond well to Steroids 18 
    Inadequate Response 14 
III. Splenectomy (only in repeated poor responders) All eventually relapsed 
I. Treatment not Required (Counts adequate) 35 
II. Started on Steroids 58 
    Good Response 44 
        Eventually weaned off + 14 
        Relapsed but again responded to Steroids 12 
        Relapsed but did not respond well to Steroids 18 
    Inadequate Response 14 
III. Splenectomy (only in repeated poor responders) All eventually relapsed 

+One Patient Relapsed Ten years after Steroid withdrawal and again quickly responded.

All who did not respond to steroids fully were treated with a second line Rx. i.e, Rituximab, Azathioprine, IV IGG or WIN Rho. One patient received high dose Dexamethasone and responded.

Conclusion:

Pending the use of TPO agonists, treatment of ITP in adults remains a chronic problem challenging the Hematologist to use as little corticosteroid as possible.

Disclosures:

No relevant conflicts of interest to declare.

Author notes

*

Asterisk with author names denotes non-ASH members.

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