Abstract:
OBJECTIVE:The aim of this study was to evaluate the role of transsphenoidal selective adenomectomy alone or in combination with adjuvant therapy in treatment of recurrent Cushing's disease. METHODS:A total of 16 patients with recurrent Cushing's disease underwent reoperation, 15 via a transsphenoidal approach and one via a combined transsphenoidal/transcranial approach. Selective adenomectomies were performed in 13 patients and hemihypophysectomies were performed in three patients. Endocrinologically, recurrence was diagnosed by an overnight 2-mg dexamethasone suppression test. All patients underwent a 1.5-T magnetic resonance imaging scan, and eight patients underwent inferior petrosal sinus sampling. RESULTS:After selective adenomectomy, six of the 13 patients went into remission. Recurrence always occurred at the localization of the original tumor. In three patients without intraoperative tumor detection, hypophysectomy did not lead to remission. In 10 patients with persistent disease, adjuvant therapy (radiotherapy, adrenalectomy) led to normalization of basal cortisol levels in eight patients and clinical remission in one patient. One patient was lost to follow-up. In 10 patients, no evidence of an adenoma was visible on the preoperative magnetic resonance imaging scan. Inferior petrosal sinus sampling allowed correct prediction of the tumor localization in two of eight patients. CONCLUSION:By performing repeated selective adenomectomy, patients with recurrent Cushing's disease can be cured without the risk of endocrine deficits or major complications. Dynamic endocrine tests are of paramount importance for surgical decision making. Imaging and inferior petrosal sinus sampling are not helpful in locating the recurrent tumor. If normalization can not be achieved, adjuvant therapy is mandatory.
journal_name
Neurosurgeryjournal_title
Neurosurgeryauthors
Hofmann BM,Hlavac M,Kreutzer J,Grabenbauer G,Fahlbusch Rdoi
10.1227/01.NEU.0000215945.26764.92subject
Has Abstractpub_date
2006-06-01 00:00:00pages
1108-18; discussion 1108-18issue
6eissn
0148-396Xissn
1524-4040pii
00006123-200606000-00011journal_volume
58pub_type
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