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Anesthetic experience of endoscopic umbilical cord ligation in a case of twin pregnancy with acardia
Authors:Omae Takeshi  Uchida Osamu  Kuro Masakazu  Chiba Yoshihide
Affiliation:Department of Anesthesiology, National Cardiovascular Center, Suita 565-8565.
Abstract:We had an opportunity to engage in anesthetic management for umbilical cord ligation under endoscopy in a case of twin pregnancy with acardia. The patient was a 24-year-old woman. At the time of surgery, she was at 18 weeks and 2 days of pregnancy. Anesthesia was induced with diazepam 10 mg, fentanyl 150 micrograms, and vecuronium 8 mg, and it was maintained with oxygen (1 l.min-1), air (3 l.min-1) and isoflurane 0.8 to 1.2%. To prevent uterine contraction, ritodrine administration was started before surgery and continued throughout the anesthesia. Throughout the surgery, the fetuses remained immobile, with no sign of uterine contractions. However, an arterial blood sample obtained after anesthetic induction showed mild lactic acidosis, suggesting its relation to ritodrine administration. Anesthetic management for fetal surgery is unique in that it is a non-obstetrical surgical procedure performed on a pregnant patient. Particular attention must be directed to specific aspects, such as the anesthetic effect on the fetus, uterine relaxation during peri-operative period, and prevention of spontaneous abortion or premature labor after surgery. The use of tocolytic agents and fetal monitoring remain for further investigation.
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