Document Detail


Iron insufficiency and hypovitaminosis d in adolescents with chronic fatigue and orthostatic intolerance.
MedLine Citation:
PMID:  21886073     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVES: : More than 10% of adolescents suffer from severe fatigue and/or orthostatic intolerance. Adult studies show correlations between iron insufficiency and fatigue as well as between hypovitaminosis D and non-specific pain. We sought to determine whether there were correlations between nutritional factors (iron status, and serum vitamin D levels) and chronic ill health.
METHODS: : We reviewed records of 188 adolescents with symptoms of fatigue and/or orthostatic intolerance and who underwent autonomic reflex screening.
RESULTS: : Of the 188 patients, 130 patients (69%) had excessive postural tachycardia (PT) with a heart rate (HR) change of ≥30 bpm. 62 patients (47%, n = 131) had iron insufficiency with low iron stores, and 29 patients (22%, n = 131) were iron deficient. HR change did not correlate to ferritin level (P = 0.15). 21 patients (22%, n = 95) had hypovitaminosis D (25-hydroxyvitamin D ≤20 ng/mL). There was a significant association with hypovitaminosis D and orthostatic intolerance (P = 0.024).
CONCLUSION: : In patients presenting with chronic fatigue and/or orthostatic intolerance, low ferritin levels and hypovitaminosis D are common, especially in patients with PT.
Authors:
Ryan M Antiel; Jonathan S Caudill; Barbara E U Burkhardt; Chad K Brands; Philip R Fischer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Southern medical journal     Volume:  104     ISSN:  1541-8243     ISO Abbreviation:  South. Med. J.     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-09-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404522     Medline TA:  South Med J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  609-11     Citation Subset:  AIM; IM    
Affiliation:
From the Department of Pediatric & Adolescent Medicine, Division of General Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN.
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