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MaryO

Postoperative ACTH, cortisol levels may predict Cushing’s disease remission rate

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Early and midterm nonremission after transsphenoidal surgery in people with Cushing’s disease may be predicted by normalized early postoperative values for adrenocorticotropic hormone and cortisol, study data show.

 

Prashant Chittiboina, MD, MPH, assistant clinical investigator in the neurosurgery unit for pituitary and inheritable diseases at the National Institute of Neurological Diseases and Stroke at the NIH, and colleagues evaluated 250 patients with Cushing’s disease who received 291 transsphenoidal surgery procedures during the study period to determine remission after the procedure. Patients were treated between December 2003 and July 2016. Early remission was assessed at 10 days and medium-term remission was assessed at 11 months.

 

Early nonremission was predicted by normalized early postoperative values for cortisol (= .016) and by normalized early postoperative values for adrenocorticotropic hormone (ACTH; = .048). Early nonremission was further predicted with 100% sensitivity, 39% specificity, 100% negative predictive value and 18% positive predictive value for a cutoff of –12 µg/mL in normalized early postoperative values for cortisol and with 88% sensitivity, 41% specificity, 96% negative predictive value and 16% positive predictive value for a cutoff of –40 pg/mL in normalized early postoperative values for ACTH.

 

Medium-term nonremission was also predicted by normalized early postoperative values for cortisol (= .023) and ACTH (= .025).

 

“We evaluated the utility of early postoperative cortisol and ACTH levels for predicting nonremission after transsphenoidal adenomectomy for Cushing’s disease,” the researchers wrote. “Postoperative operative day 1 values at 6 a.m. performed best at predicting early nonremission, albeit with a lower [area under the receiver operating characteristic curve]. Normalizing early cortisol and ACTH values to post-[corticotropin-releasing hormone] values improved their prognostic value. Further prospective studies will explore the utility of normalized very early postoperative day 0 cortisol and ACTH levels in identifying patients at risk for nonremission following [transsphenoidal surgery] in patients with [Cushing’s disease].” – by Amber Cox

 

Disclosure: The researchers report no relevant financial disclosures.

 

From http://www.healio.com/endocrinology/adrenal/news/in-the-journals/%7B7de200ed-c667-4b48-ab19-256d90a7bbc5%7D/postoperative-acth-cortisol-levels-may-predict-cushings-disease-remission-rate

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