Effective doses of propofol and oliceridine fumarate for painless hysteroscopy: a two-phase dose-finding study using Dixon’s up-and-down method
Background Painless hysteroscopy is widely performed in gynecological practice, yet achieving an optimal balance between anesthetic safety and patient comfort remains challenging. Combining propofol with oliceridine may mitigate respiratory depression and injection pain associated with conventional regimens, though the...