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  • Title: Robot-assisted transabdominal cerclage for the prevention of preterm birth: A multicenter experience.
    Author: Tyan P, Mourad J, Wright B, Winter M, Garza D, Smith R, Brink J, Wei C, Moawad G.
    Journal: Eur J Obstet Gynecol Reprod Biol; 2019 Jan; 232():70-74. PubMed ID: 30476879.
    Abstract:
    OBJECTIVE: High-risk pregnancy stratification and the use of Progesterone and prophylactic cerclage based on prior obstetrical outcomes and cervical length screening have been successful in curbing the impact of preterm birth. However, a large number of women will still suffer from preterm delivery even with optimal management. Experts agree that a transabdominal cerclage is the next best option for women who fail a transvaginal cerclage in a prior pregnancy. Our primary objective with this study is to assess the obstetric benefits and feasibility of robotic-assisted transabdominal cerclage in high-risk women projected to have poor obstetric outcomes. STUDY DESIGN: A multicenter retrospective cohort analysis of consecutive patients undergoing a robotic-assisted transabdominal cerclage (RA-TAC) for obstetric indications at two urban teaching university hospital and one academically affiliated community hospital. High-volume gynecologic surgeons performed all transabdominal cerclage procedures (N = 68). To assess whether the transabdominal cerclage had any effect on subsequent pregnancies, we categorized gestational age into ordinal variables and used a two-proportion z-test to compare pregnancy outcomes and neonatal survival pre (n = 200) and post (n = 59) abdominal cerclage placement. RESULTS: A total of 68 consecutive patients undergoing a RA-TAC for obstetric indications were selected. We compared 200 pregnancies pre-robot-assisted cerclage to 59 pregnancies post-robot-assisted cerclage. The odds of delivering after 34 and 37 weeks gestational age was 4.0 and 3.6 times greater post-robot-assisted cerclage, respectively (P < 0.001). The RA-TAC also had a significant effect on neonatal survival. The odds of neonatal survival was 12.6 times greater after RA-TAC placement when compared to prior pregnancy outcomes. Surgical outcomes were also favorable with no conversions to laparotomy or perioperative pregnancy loss. CONCLUSION: The RA-TAC influences an increase in gestational age and improves neonatal survival in women projected to have poor pregnancy outcomes. The robot-assisted transabdominal cerclages provide excellent obstetric outcomes without the morbidity of a laparotomy or the technical challenges associated with a conventional straight-stick laparoscopy. This procedure is not intended to replace any other minimally invasive modality for cerclage placement but rather increase awareness of a less technically challenging option for transabdominal cerclage placement to help propagate the procedure to more patients.
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