Bromocriptine inhibition of hyperprolactinemia during surgery

Area of Science:

• Endocrinology
• Anesthesiology
• Reproductive Medicine

Background:

• Surgical stress and anesthesia can significantly elevate prolactin levels.
• Elevated prolactin is associated with various reproductive and endocrine disorders.
• Managing prolactin fluctuations during medical procedures is clinically relevant.

Purpose of the Study:

• To evaluate the efficacy of bromocriptine in suppressing the perioperative prolactin surge.
• To investigate the impact of bromocriptine on prolactin levels during diagnostic laparoscopy.
• To establish a protocol for managing hyperprolactinemia in surgical patients.

Main Methods:

• Two groups of 10 women undergoing diagnostic laparoscopy were studied.
• Anesthesia involved fentanyl and propanidid-succinylcholine.
• The experimental group received oral bromocriptine (5 mg), while the control group did not.
• Blood samples were collected preoperatively and postoperatively for prolactin level determination.

Main Results:

• The control group showed a significant prolactin increase (10.9 to 168 ng/mL; p < 0.001).
• The bromocriptine group exhibited a blunted prolactin response (3.5 to 7.5 ng/mL; p < 0.001).
• Significant differences in pre- and postoperative prolactin levels and response were observed between groups (p < 0.05 to p < 0.001).

Conclusions:

• Bromocriptine effectively suppresses the increase in prolactin levels during surgery.
• This protocol is a valuable tool for studying hyperprolactinemia and its surgical consequences.
• Potential applications include in vitro fertilization and research on prolactin receptor-bearing tumors.