TY - CHAP M1 - Book, Section TI - Intravenous Analgesia A1 - Sween, Lindsay K. A2 - Hess, Philip E. A2 - Li, Yunping A2 - Kowalczyk, John J. A2 - Stiles, Justin K. PY - 2023 T2 - Obstetric Anesthesia: Quick References & Practical Guides AB - Intravenous patient-controlled analgesia (PCA) with fentanyl or remifentanil is an option for labor analgesia in patients for whom neuraxial anesthesia is contraindicated (e.g., platelet disorders, coagulopathy, or patient’s refusal).1 Both remifentanil and fentanyl PCA have significantly lower visual analog scale pain scores 1 hour after treatment initiation compared to baseline, with pain score reduction being significantly greater with remifentanil compared to fentanyl.1,2 Patients’ pain scores with fentanyl and remifentanil PCA return to baseline by 3 hours after treatment initiation, likely reflecting increased pain levels with advancing labor.1 SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/11/07 UR - obgyn.mhmedical.com/content.aspx?aid=1199674050 ER -