Document Detail


The role of insulin-like growth factor-1 and growth hormone in the mortality of patients with acromegaly after trans-sphenoidal surgery.
MedLine Citation:
PMID:  20943425     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
CONTEXT: Acromegaly is associated with a significant increase in mortality. With the development of new modalities of treatment, it has become important to identify prognostic factors relating to mortality.
OBJECTIVE: This study aimed to determine the all-cause mortality of patients with acromegaly after trans-sphenoidal surgery, and assess the impact of biochemical markers on survival.
DESIGN: Two hundred thirty-four patients were admitted to the Taipei Veterans General Hospital for acromegaly between 1979 and 2007. Of the 163 patients who underwent trans-sphenoidal surgery, 142 had data available for insulin-like growth factor-1 (IGF-1), and their survival status was analyzed. Serial data for fasting growth hormone (GH) and IGF-1 were collected. This study also used the last follow-up data for mortality analysis. The patients with acromegaly were grouped according to the last follow-up GH level (≤2 or >2 μg/L) and IGF-1 SD score (≤2 or >2). All-cause mortality was followed to the end of 2007 and compared to the general Taiwanese population by standardized mortality ratios.
RESULTS: Serial GH and IGF-1 data revealed that the GH levels in the first 3 years after surgery were important predictors of mortality in acromegaly. However, there are insufficient IGF-1 data for deceased patients to determine the significance of a raised IGF-1 immediately following treatment. Comparison of crude death rates suggests that a fasting GH level of 2 μg/L and normalization of the IGF-1 level are appropriate targets. After subgroup analysis to assess the impact of discordant GH and IGF-1 levels on survival, the data showed that the elevated GH group had a trend toward a higher mortality than the elevated IGF-1 group.
CONCLUSIONS: An elevated GH value in the first 3 years after surgery may be the best predictor of mortality. Thus, the follow-up of patients with acromegaly at relatively frequent intervals after trans-sphenoidal surgery should be routine.
Authors:
Tzu-En Wu; Hong-Da Lin; Ron-A Lu; Mei-Li Wang; Ru-Lin Chen; Harn-Shen Chen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-12
Journal Detail:
Title:  Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society     Volume:  20     ISSN:  1532-2238     ISO Abbreviation:  Growth Horm. IGF Res.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9814320     Medline TA:  Growth Horm IGF Res     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  411-5     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Growth Hormone Research Society. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Institute of Public Health, National Yang-Ming University School of Medicine, Taipei, Taiwan.
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