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Early repeat surgery for persistent Cushing's disease

Z Ram1, L K Nieman, G B Cutler

  • 1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland.

Journal of Neurosurgery
|January 1, 1994
PubMed
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Early repeat transsphenoidal surgery can resolve persistent Cushing's disease in 71% of patients. However, this approach carries a high risk of hypopituitarism, necessitating careful consideration against alternative treatments.

Area of Science:

  • Endocrinology
  • Neurosurgery
  • Oncology

Background:

  • Cushing's disease, characterized by hypercortisolism, is often treated with transsphenoidal surgery.
  • The efficacy of early repeat surgery for persistent Cushing's disease remains understudied.

Purpose of the Study:

  • To evaluate the effectiveness and risks of early repeat transsphenoidal surgery for patients with persistent Cushing's disease after initial surgery.

Main Methods:

  • Retrospective analysis of 222 patients with Cushing's disease, focusing on 17 who underwent repeat surgery within 46 days of initial exploration.
  • Assessment of hypercortisolism remission (urine free cortisol > 90 µg/day) and hypopituitarism development.
  • Follow-up duration ranged from 4 to 84 months.

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Main Results:

  • Of 17 patients undergoing repeat surgery, 12 (71%) achieved immediate remission of hypercortisolism.
  • Recurrence of hypercortisolism occurred in 3 of the 12 patients within 24 months.
  • Seven patients (41%) developed hypopituitarism requiring hormone replacement therapy.
  • Tumor identification was challenging, with adenomas only definitively identified in 14 patients.

Conclusions:

  • Early reoperation for persistent Cushing's disease offers a high immediate remission rate but is associated with significant risk of hypopituitarism.
  • This approach may be suitable for specific patient subsets, particularly when residual tumor is suspected after initial surgery.
  • The decision for reoperation should weigh potential benefits against risks and alternative treatment modalities.