Vichitvejpaisal, PSvastdi-Xuto, OUdompunturux, S2009-05-272009-05-271992-05-01Vichitvejpaisal P, Svastdi-Xuto O, Udompunturux S. A comparative study of isobaric and hyperbaric solution of bupivacaine for spinal anaesthesia in caesarean section. Journal of the Medical Association of Thailand. 1992 May; 75(5): 278-82http://imsear.searo.who.int/handle/123456789/41907Chotmaihet Thangphaet.Though hyperbaric solution of bupivacaine following intrathecal injection had satisfactory spread of analgesia, it regressed rapidly with more side effects. Isobaric bupivacaine seemed to provide a slow regression of analgesia with fewer undesirable effects except for its inadequate spread of analgesia. As a result, if the dosages as well as the time of administration of isobaric solution are well adjusted, we believe that it is safe and reliable with an excellent level of analgesia for caesarean section.engAdultAnesthesia, Obstetrical --adverse effectsAnesthesia, Spinal --adverse effectsAtmospheric PressureBupivacaine --administration & dosageCesarean SectionDouble-Blind MethodFemaleHumansPregnancyTreatment OutcomeClinical Trial