Vasopressin injection into the myometrium during robot-assisted laparoscopic myomectomy

Vasopressin causes vasospasm and uterine muscle contraction and decreases blood loss during myomectomy. It should be diluted (20 U in 50–200 mL of normal saline), introduced with a 7-inch, 22-gauge spinal needle through the anterior abdominal wall, and injected into the myometrium and serosa overlying the fibroid.

Video provided by Arnold P. Advincula, MD, and Bich-Van Tran, MD