Revista brasileira de anestesiologia
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Rev Bras Anestesiol · Aug 2003
[Comparison between pressure controlled and controlled mandatory ventilation in the treatment of postoperative hypoxemia after myocardial revascularization].
Pressure controlled ventilation (PCV) has been used as the ventilation mode of choice in coronary artery bypass graft surgery patients who develop severe hypoxemia in the immediate postoperative period. However, there are no evidences showing that pressure controlled ventilation is more effective in reversing postoperative hypoxemia than controlled mandatory ventilation (CMV). This study aimed at comparing the effects of both ventilation modes on systemic oxygenation in cardiac surgery patients who develop hypoxemia characterized by PaO2/FiO2 ratio lower than 200 in the immediate postoperative period. ⋯ Both ventilatory modes were equally effective in reversing hypoxemia observed in the immediate cardiac surgery postoperative period. Results show that inspiratory flow patterns are not relevant in the treatment of post cardiac surgery hypoxemia.
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Rev Bras Anestesiol · Aug 2003
[Effects of low spinal morphine doses associated to intravenous and oral ketoprofen in patients submitted to cesarean sections].
Low spinal morphine doses are effective in relieving postoperative pain of patients submitted to Cesarean sections, with low incidence of side-effects. This study aimed at evaluating postoperative analgesia and the incidence of side-effects in patients submitted to Cesarean sections under spinal anesthesia with hyperbaric bupivacaine and 0.05 mg and 0.1 mg morphine associated to intravenous and oral ketoprofen. ⋯ Spinal 0.05 mg and 0.1 mg morphine associated to intravenous and oral ketoprofen have provided the same postoperative analgesia and have determined the same incidence of side-effects.
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Rev Bras Anestesiol · Aug 2003
[Maxillary nerve block for zygoma and orbital floor fractures reduction].
There are few reports of zygomatic orbital floor or zygomatic arch fractures reduction under regional anesthesia. This study aimed at evaluating extraoral maxillary nerve block for zygoma and orbital floor fractures reduction. ⋯ Zygomatic fractures reduction is feasible under maxillary nerve block when performed in pterygopalatine fossa inducing anesthesia in its two distal branches: zygomaticotemporal and zygomaticofacial nerves.
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Rev Bras Anestesiol · Aug 2003
[Hemodynamic and metabolic evaluation of dexmedetomidine and remifentanil continuous infusion in videolaparoscopic cholecystectomy: comparative study].
Dexmedetomidine has been used for sedation and as coadjuvant drug in general anesthesia. This study aimed at evaluating cardiovascular and sympathetic-adrenal responses to tracheal intubation and pneumoperitoneum inflation with dexmedetomidine, as compared to remifentanil during anesthesia with sevoflurane for videolaparoscopic cholecystectomy. ⋯ In the conditions of our study, dexmedetomidine has inhibited catecholamine release during tracheal intubation and pneumoperitoneum, however, has not prevented blood pressure increase in response to peritoneal inflation.
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There are no data on Postanesthetic Care Units (PACU) equipment, monitoring routines and discharge criteria adopted by Brazilian anesthesiologists. This study aimed at obtaining such data. ⋯ This study suggests that Brazilian anesthesiologists are concerned about patients safety during postanesthetic recovery, as shown by high equipment availability in the PACU and expressive routine monitoring ratios of isolated parameters. Some monitoring routines should be implemented to comply with new guidelines on postanesthetic care and new discharge criteria for outpatient procedures.