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Headache prevalence following recovery from TTP and aHUS.

Abstract：

:Thrombotic thrombocytopenia purpura (TTP) and atypical hemolytic uremic syndromes (aHUS) are distinct clinical disorders characterized by hemolytic anemia, thrombocytopenia, microthrombi, and end organ damage. TTP is characterized by a low ADAMTS13 activity level at diagnosis of <10 % ADAMTS13 activity, while aHUS is characterized as having >10 % ADAMTS13 activity. Despite clinical remission, survivors of thrombotic microangiopathy suffer significant comorbidity and decreased quality of life (QOL) than their healthy counterparts. The reason for this is unclear. Is it a lingering effect from their initial acute episode or ongoing subclinical injury/inflammation despite clinical remission? Common clinical complaints validated in practice include increased depression, deficits in memory, concentration, mood, and mental endurance. We suspect headaches may be an important clinical tool toward understanding patient morbidity and decreased QOL. To date, no studies report headache frequency or severity in this population. To answer this question, adult patients >3 months since their last acute episode of TTP or aHUS were approached to take a Headache Impact Test (HIT-6) survey. Between June 1, 2013 and May 30, 2014, 31 patients in remission (21 patients with prior TTP and 10 patients with prior aHUS) completed the HIT-6 survey. The survey scores were then compared to the HIT-6 normative population data established by Qualitymetric incorporated. Overall, TTP patients had a significantly higher average HIT-6 score of 59.9 compared to an average HIT-6 score of 51 seen in sex-matched controls (SD 9.6, p value 0.002). No significant difference was seen in the HIT-6 scores of aHUS patients. Of TTP patients studied, approximately 57 % (12/21) had three or more episodes and were >24 months since the last episode. The average time since last acute episode in TTP patients was 37.5 months. There was no significant correlation between TTP survivor HIT-6 scores and the number of prior episodes (1, 2, or >3) or timing from the last episode (3-6, 7-12, 13-24, or >24 months). About 19/21 (90 %) patients, who are TTP survivors, also had a normal ADAMTS13 activity level (>10 %) on the day of the survey. Our study suggests that headaches have significant impact on TTP survivors and should be followed in the clinical setting to prevent undue patient morbidity. Larger studies are needed to understand how headaches impact long-term survival and risk of relapse.

journal_name

Ann Hematol

journal_title

Annals of hematology

authors

Saultz JN,Wu HM,Cataland S

doi

10.1007/s00277-015-2411-2

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

1473-6

issue

eissn

0939-5555

issn

1432-0584

journal_volume

pub_type

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Headache prevalence following recovery from TTP and aHUS.