| Dynamic testing with high-dose adrenocorticotrophic hormone does not improve lateralization of aldosterone oversecretion in primary aldosteronism patients. | |
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MedLine Citation:
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PMID: 16508586 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Diagnosing aldosterone-producing adenoma (APA) involves a demonstration of the lateralization of aldosterone oversecretion because adrenal incidentalomas are common in hypertensive individuals and many small-sized APA escape identification with available imaging techniques. However, because of the pulsatile pattern of aldosterone secretion this can be a difficult undertaking. Stimulation of aldosterone secretion before adrenal vein sampling (AVS) can overcome this difficulty, but anecdotal data exist. We, therefore, prospectively investigated the usefulness of AVS with dynamic testing in primary aldosteronism (PA) patients. METHODS: We enrolled 24 consecutive consenting patients with a biochemical diagnosis of PA from a tertiary referral centre to measure the effects of adrenocorticotrophic hormone (ACTH) on selectivity, the lateralization of aldosterone secretion to the APA side, and adverse effects. After correcting the hypokalemia we performed bilateral AVS. After 3 h supine resting, blood was simultaneously obtained from both sides. A high-dose ACTH (250 mug intravenous) bolus was then administered and AVS was repeated after 30 min. RESULTS: AVS was bilaterally selective in 88% of patients; no adverse effects occurred. Of the 21 patients with bilaterally selective AVS, three had idiopathic hyperaldosteronism and 18 an APA that was surgically removed in 12 with an ensuing fall in blood pressure at follow-up. After ACTH patients showed a significant increase (P = 0.007) of aldosterone from contralateral adrenal vein blood, but not from the APA gland. Therefore, lateralization of aldosterone secretion on the APA side did not improve. CONCLUSION: AVS is safe and accurate for identifying APA. However, at a statistical power of 99%, these results do not support the usefulness of high-dose ACTH testing to improve the diagnostic accuracy of AVS. |
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Authors:
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Gian Paolo Rossi; Chiara Ganzaroli; Diego Miotto; Renzo De Toni; Gaetana Palumbo; Gian Pietro Feltrin; Franco Mantero; Achille C Pessina |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of hypertension Volume: 24 ISSN: 0263-6352 ISO Abbreviation: J. Hypertens. Publication Date: 2006 Feb |
Date Detail:
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Created Date: 2006-03-01 Completed Date: 2006-03-31 Revised Date: 2007-03-01 |
Medline Journal Info:
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Nlm Unique ID: 8306882 Medline TA: J Hypertens Country: England |
Other Details:
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Languages: eng Pagination: 371-9 Citation Subset: IM |
Affiliation:
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DMCS Internal Medicine 4 bInstitute of Radiology, Legnano, Italy. gianpaolo.rossi@unipd.it |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adenoma
/
diagnosis,
secretion Adrenal Gland Neoplasms / diagnosis, secretion Adrenal Glands / blood supply Adrenocorticotropic Hormone / diagnostic use*, pharmacology Adult Aged Aldosterone / secretion* Female Humans Hydrocortisone / blood Hyperaldosteronism / diagnosis* Male Middle Aged Prospective Studies |
| Chemical | |
Reg. No./Substance:
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50-23-7/Hydrocortisone; 52-39-1/Aldosterone; 9002-60-2/Adrenocorticotropic Hormone |
| Comments/Corrections | |
Comment In:
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J Hypertens. 2007 Feb;25(2):480-1; author reply 481-4
[PMID:
17211259
]
J Hypertens. 2006 Feb;24(2):285-6 [PMID: 16508573 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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