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Evaluation of the hypothalamic-pituitary-adrenal axis in patients with antiphospholipid syndrome.
MedLine Citation:
PMID:  20716147     Owner:  NLM     Status:  In-Process    
INTRODUCTION: Hypothalamic-pituitary-adrenal (HPA) axis insufficiency is the most common endocrine disorder in patients with antiphospholipid syndrome (APS). Primary adrenal failure because of venous thrombosis and/or adrenal haemorrhage is the leading diagnosis, while another possible mechanism is autoimmune adrenal failure. Prospective evaluation of the HPA axis in patients with APS has not been previously performed.
AIMS: To evaluate the HPA axis in patients with APS.
METHODS: Ambulatory patients (age 18 years and older) with APS were given a symptom questionnaire. Baseline aldosterone, corticotropin (ACTH) and adrenal cortex autoantibodies (ACA) were measured. Cortisol was measured at baseline and after 1-mcg ACTH stimulation.
RESULTS: In all, 24 patients (18 women/6 men; mean age 44.6 +/- 16.1 years) participated in the study. Of these, 21 had primary APS with disease duration of 5.8 +/- 6.2 years. Baseline cortisol level was 12.6 +/- 4.2 mg/dl (normal 7-25). After ACTH stimulation, it was 24.7 +/- 4.1 mg/dl and 22.8 +/- 7.4 mg/dl at 30 and 60 min respectively. All patients had a stimulated cortisol level of at least 18 mg/dl, although three patients had stimulated cortisol between 18 and 20 mg/dl, one of which reported previous inhaled steroid treatment. Weakness, dizziness and nausea were reported at baseline by 50%, 38% and 25% of the patients respectively. ACA were negative in all patients examined.
CONCLUSIONS: In our cohort, patients with APS did not have HPA axis insufficiency. Partial adrenal insufficiency could not be excluded in two patients. Further longitudinal studies are needed to determine the significance of periodic evaluation of the HPA axis in patients with APS.
P Rotman-Pikielny; M S Shapiro; M Ellis; C Betterle; Y Levy
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of clinical practice     Volume:  64     ISSN:  1742-1241     ISO Abbreviation:  Int. J. Clin. Pract.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9712381     Medline TA:  Int J Clin Pract     Country:  England    
Other Details:
Languages:  eng     Pagination:  1398-401     Citation Subset:  IM    
Department of Medicine E, Kfar Saba, Israel, Affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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