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Twelve received lumbar epidural analgesia with bupivacaine (Marcain\u2010adrenalin\u00ae) and twelve conventional obstetrical analgesia with meperidine (Petidin\u00ae), chlorpromazine (Hibernal\u00ae), nitrous oxide and a pudendal nerve block with prilocaine (Citanest\u00ae). The acid\u2010base balance was determined in fetal and maternal blood during labour and in neonatal blood after birth. The newborn infants were placed in incubators after birth and several clinical parameters were recorded during the first two hours. Epidural analgesia to the mothers resulted in a lower degree of metabolic acidosis than conventional obstetrical analgesia. The clinical and blood\u2010chemical parameters recorded in this study indicated no harmful effects on the newborn infants after epidural analgesia to the mothers.<\/jats:p>","DOI":"10.3109\/00016347409156885","type":"journal-article","created":{"date-parts":[[2009,12,8]],"date-time":"2009-12-08T18:10:33Z","timestamp":1260295833000},"page":"27-35","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":62,"title":["Lumbar Epidural Analgesia in Labour"],"prefix":"10.1111","volume":"53","author":[{"given":"B.","family":"Thalme","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Belfrage","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N.","family":"Raabe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,1,12]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"980","article-title":"Das Verhalten des S\u00e4ure\u2010Basen\u2010Haushalts am ersten Lebenstage unter besonderer Ber\u00fccksichtigung der ersten Lebensminuten","volume":"29","author":"Berg D.","year":"1969","journal-title":"Geburtsh Frauenheilk"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.2.5106.1197"},{"key":"e_1_2_1_4_1","unstructured":"CrawfordJ. 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