Revista brasileira de anestesiologia
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Rev Bras Anestesiol · Jul 2009
Randomized Controlled Trial Comparative Study[Intraoperative volume replacement: crystalloids versus colloids in surgical myocardial revascularization without cardiopulmonary bypass].
The use of crystalloids or colloids for volume replacement in large size surgeries is controversial. The objective of this study was to compare the effects of the intraoperative administration of crystalloids (normal saline - NS) with those of colloids (modified fluid gelatin) for surgical myocardial revascularization (SMR) without cardiopulmonary bypass (CPB). ⋯ The use of colloids represented here by modified fluid gelatin associated with crystalloids or the use of crystalloids alone did not change the postoperative prognosis of patients undergoing SMR without CPB. Perhaps maintenance of the hemodynamic balance during the surgery is more important than the type of fluid administered.
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Rev Bras Anestesiol · Jul 2009
Randomized Controlled Trial Comparative Study[Efficacy of intraoperative methadone and clonidine in pain control in the immediate postoperative period after the use of remifentanil].
Due to its pharmacokinetic characteristics, remifentanil does not promote residual analgesia in the immediate postoperative period. The objective of this study was to compare the efficacy of methadone and clonidine in the control of postoperative pain of videolaparoscopic surgeries under total intravenous anesthesia with target-controlled remifentanil infusion. ⋯ Methadone was more effective than clonidine in the control of postoperative pain in videolaparoscopic surgeries under total intravenous anesthesia with remifentanil; and using clonidine was not better than not using it.
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Rev Bras Anestesiol · Jul 2009
Randomized Controlled Trial Comparative Study[A comparative study between bupivacaine and clonidine associated with bupivacaine in cervical plexus block for carotid endarterectomy].
Neurological evaluation can be done during cervical plexus block for endarterectomy, which also maintains postoperative analgesia. The objective of this study was to compare the analgesic effects of clonidine associated with bupivacaine to those of bupivacaine in cervical plexus block. ⋯ The association of 150 (1/4)g of clonidine and bupivacaine in cervical plexus block for carotid endarterectomy did not improve significantly the analgesic effects evaluated by pain severity, time until the first analgesic supplementations and amount of supplementary analgesics.