[Clinical study on postoperative steroid hormone replacement for preclinical Cushing's syndrome].
OBJECTIVE
Diagnostic criteria for preclinical Cushing's syndrome (PCS) were reported in 1996. However, requirement of postoperative steroid hormone replacement is still controversial issue. In this study, we observed recent surgical cases retrospectively and evaluate the use of postoperative steroid hormone replacement.


METHODS
Eighteen patients with PCS underwent surgery from 1997 to 2007 in Jikei University Hospital. Thirteen of them received postoperative steroid hormone replacement. We investigated preoperative hormone activity by 131I-adosterol scintigraphy and suppression of ACTH and evaluated the requirement of postoperative steroid hormone replacement.


RESULTS
Preoperative serum cortisol was normal range in all patients. Serum ACTH was suppressed in 10 of them (56%). In 131I-adosterol scintigraphy, accumulation in ipsilateral side was observed in all patients. Accumulation in contralateral side was observed in 13 patients whose serum ACTH had tendency to be suppressed. Mean period of steroid hormone replacement was 19.8 weeks. Patients with lower preoperative ACTH tended to require longer period until withdrawal of steroid hormone replacement. In addition, patients received steroid hormone replacement with higher starting dose significantly required longer period. Three of them had complications during tapering of steroid hormone.


CONCLUSIONS
Postoperative adrenal insufficiency is important issue as postoperative management of PCS patients whose function of contralateral adrenal or pituitary gland is suppressed. 131I-adosterol scintigraphy and preoperative serum ACTH were important factors to evaluate the requirement of postoperative steroid hormone replacement. Especially, patients with low preoperative serum ACTH tended to require long duration of postoperative steroid hormone replacement. On the other hand, patients with accumulation of contralateral side in 131I-adosterol scintigraphy and without suppression of serum ACTH may not require steroid hormone replacement. Decrease starting dose of steroid hormone replacement for appropriate patients could shorten the period of steroid hormone replacement safely.
Department of Urology Jikei University, School of Medicine.
Nozomu
N
Furuta
Haruhisa
H
Koide
Hiroshi
H
Sasaki
Jun
J
Miki
Takahiro
T
Kimura
Shin
S
Egawa
D000302:Adrenal Cortex / Q000000981:diagnostic imaging; D000315:Adrenalectomy; D000324:Adrenocorticotropic Hormone / Q000097:blood; D000328:Adult; D015415:Biomarkers / Q000097:blood; D003480:Cushing Syndrome / Q000175:diagnosis / Q000628:therapy*; D003907:Dexamethasone; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000008:administration & dosage*; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D055815:Young Adult
D015415:Biomarkers; D003907:Dexamethasone; D000324:Adrenocorticotropic Hormone; D006854:Hydrocortisone