Intracervical Vasopressin

This randomized study looks at whether using a medicine injected into the cervix of the uterus (intracervical), called vasopressin, helps to achieve better removal of retained products of conception (RPOC). RPOC means that after a pregnancy has ended (through miscarriage, abortion, or delivery), some parts of the pregnancy tissue, usually from the placenta or fetus, have stayed in the uterus. A hysteroscopic removal of RPOC is one type of treatment. This is a surgical procedure where a doctor uses a small camera attached to a thin tube (called a hysteroscope) to look inside the uterus. The main goal of the study is : • To add to the existing research through this study to see if the injection of intracervical vasopressin leads to improved completion rates of hysteroscopic management of RPOC. Participants will: • would be randomized to receive either vasopressin intracervical injection or a placebo injection (non-active saline) during your procedure. Information from the procedure will be collected from the participant's medical record.

Inclusion Criteria: * Women * Aged 18-51 * Undergoing surgical management for retained products of conception, postpartum retained products of conception or 1st trimester missed or incomplete abortion Exclusion Criteria: * Hemodynamic instability * Active hemorrhage- soaking pad/hour * Allergy to vasopressin * Concern for intrauterine arteriovenous malformation * Inability to consent