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Related Experiment Videos

Pituitary apoplexy after leuprolide.

Anu Davis1, Shefali Goel, Michalis Picolos

  • 1University of Texas Health Science Center - Houston, 6431 Fannin, MSB 4.202, Houston, TX 77030, USA. anudavis@alumni.utexas.net

Pituitary
|July 13, 2006
PubMed
Summary

Pituitary apoplexy, a rare condition, can be triggered by gonadotropin-releasing hormone (GnRH) agonists. This case highlights the risk in patients with prostate cancer receiving leuprolide treatment, emphasizing the need for vigilance.

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Area of Science:

  • Endocrinology
  • Oncology
  • Neurology

Background:

  • Pituitary adenomas are common, but acute pituitary hemorrhage (apoplexy) is rare.
  • Pituitary apoplexy is a life-threatening medical emergency with poorly understood pathophysiology.
  • Various conditions and treatments can trigger apoplexy, including stimulation by GnRH or GnRH-agonists.

Observation:

  • A 61-year-old male with advanced prostate cancer developed acute pituitary apoplexy after his first dose of leuprolide.
  • Symptoms included headache, neck pain, nausea, vomiting, ptosis, and diplopia within hours of treatment.
  • This presentation occurred in the context of prostate cancer treatment with a GnRH agonist.

Findings:

  • The case demonstrates a potential link between leuprolide administration and the onset of pituitary apoplexy.

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  • Asymptomatic gonadotroph adenomas may be susceptible to apoplexy following initial stimulation by GnRH analogues.
  • The initial stimulatory effect of GnRH analogues can precipitate apoplexy in susceptible individuals.

    • Implications:

    • Clinicians should be aware of the potential for pituitary apoplexy in patients treated with GnRH agonists, particularly those with prostate cancer.
    • Early recognition and management of pituitary apoplexy are crucial due to its potentially life-threatening nature.
    • Further research into the pathophysiology and risk factors for GnRH agonist-induced pituitary apoplexy is warranted.