| Utility of the immediate postoperative cortisol concentrations in patients with Cushing's disease. | |
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MedLine Citation:
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PMID: 20651632 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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BACKGROUND: Several investigators have recommended serial measurements of serum cortisol in the days following pituitary surgery to identify patients at risk of recurrence. OBJECTIVE: We systematically reviewed the literature on this topic and analyzed the usefulness of this test in our own patient population. METHODS: We identified studies publishing data regarding recurrence rates after transsphenoidal surgery for Cushing's disease, focusing on studies with data regarding patients with early postoperative cortisol levels. We determined a cumulative relative risk of having a subnormal vs normal cortisol level postoperatively using a fixed-effects meta-analysis model. Additionally, we analyzed our own patients with Cushing's disease undergoing transsphenoidal surgery and performed Kaplan-Meier analysis of recurrence-free survival for patients with undetectable, subnormal but detectable, and normal immediate 8 AM serum cortisol levels. RESULTS: Fourteen studies met inclusion criteria. The length of follow-up varied between 32 and 115 months. The cumulative rate of recurrence in the group of patients with subnormal cortisol levels was 9% (95% confidence interval: 6%-12%). The cumulative rate of recurrence in the group with normal cortisol levels was 24% (95% confidence interval: 17%-31%). We analyzed 73 of our own patients and found similar recurrence rates in patients with subnormal vs normal early postoperative cortisol levels (4% vs 22%, chi2 test, P < .05). CONCLUSION: Although a subnormal early postoperative cortisol level is predictive of improved outcome after transsphenoidal surgery for Cushing's disease, it is not analogous with cure, nor is a normal level completely predictive of future failure. |
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Authors:
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Michael E Sughrue; Jugal K Shah; Jessica K Devin; Sandeep Kunwar; Lewis S Blevins |
Publication Detail:
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Type: Journal Article; Meta-Analysis; Review |
Journal Detail:
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Title: Neurosurgery Volume: 67 ISSN: 1524-4040 ISO Abbreviation: Neurosurgery Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-08-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7802914 Medline TA: Neurosurgery Country: United States |
Other Details:
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Languages: eng Pagination: 688-95; discussion 695 Citation Subset: IM |
Affiliation:
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California Center for Pituitary Disorders, University of California, San Francisco, California 94143-0350, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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