• Rev Bras Anestesiol · Aug 2006

    [The interaction between labor analgesia and its results: assessment using the newborn s weight and Apgar score.].

    • Andrea Stolf Eberle, Eliana Marisa Ganem, Norma Sueli Pinheiro Módolo, Rosa Beatriz Amorim, Giane Nakamura, Christiane D'Oliveira Marques, and Yara Marcondes Machado Castiglia.
    • FMB, UNESP.
    • Rev Bras Anestesiol. 2006 Aug 1; 56 (4): 343-51.

    Background And ObjectivesThere are controversies regarding whether labor analgesia can interfere with labor and the vitality of the newborn. The objective of this study was the interaction between labor analgesia, using the continuous epidural and combined spinal-epidural techniques with a small dose of local anesthetic, and the type of delivery analyzing the newborn's weight and Apgar score.MethodsThe results of 168 labor analgesias (from January 2002 to January 2003) were analyzed. They were divided in 4 groups: G1 (n = 58), continuous epidural and evolution to vaginal delivery; G2 (n = 69), combined spinal-epidural and evolution to vaginal delivery; G3 (n = 25), continuous epidural and evolution to cesarean; G4 (n = 16), combined spinal-epidural and evolution to cesarean. G1 received 0.125% ropivacaine (12 to 15 mL), G2 received subarachnoid 0.5% bupivacaine (0.5 to 1 mL) and sufentanil (10 mg). Epidural ropivacaine 0.5% for the vaginal delivery (8 mL) and for cesarean (20 mL). The patient's age, weight, height, body mass index (BMI), gestational age, number of prior pregnancies, and complications (arterial hypotension, bradycardia, and hypoxia) and the newborn's weight and Apgar score (at 1, 5, and 10 minutes) were evaluated.ResultsThe majority of pregnant women were primiparous and presented with a term pregnancy (one with gestational age of 28 weeks and none post-term pregnancy); weight, G2 < G4; and MBI, G2 pound G4. For the weight of the newborn, G1 < G3 and G2 < G4, and for the Apgar score at 1st minute, G1 > G3.ConclusionsIf the analysis focuses the newborn's weight and Apgar score, the techniques of analgesia, continuous epidural and combined spinal-epidural with small doses of local anesthetic, do not interfere with the result of the delivery.

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