Revista brasileira de anestesiologia
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Rev Bras Anestesiol · Jun 2006
[Simplified posterior sciatic nerve block at mid gluteofemoral dulcus: comparison of different 1% lidocaine volumes].
Subgluteus sciatic nerve block has been successfully described in a previous study and is one more option among several possible approaches. The sciatic nerve becomes superficial at inferior gluteus maximus muscle where it is easily located and accessed with minor discomfort and low risk of accidental great vessels puncture. Our study aimed at evaluating this simplified sciatic nerve block approach with different 1% lidocaine volumes. ⋯ This is an effective and easy approach and total anesthetic dose may be decreased without impairing quality.
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Rev Bras Anestesiol · Jun 2006
[Hemodynamic effects of aortic occlusion during inhalational anesthesia with isoflurane and sevoflurane: experimental study in dogs].
Aortic flow suppression and release during aortic procedures promote major hemodynamic disorders. This study aimed at evaluating these disorders in dogs anesthetized with isoflurane or sevoflurane. ⋯ This study has shown that isoflurane is a better indication for such interventions for promoting less hemodynamic changes.
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Rev Bras Anestesiol · Jun 2006
[Importance of pleural pressure for the evaluation of respiratory mechanics].
Pleural pressure has to be known for the partitioning of respiratory system mechanical measurements into their lung and chest wall components. This review aimed at discussing alternative methods to obtain pleural pressure to calculate pulmonary mechanics, at reporting peculiarities of the esophageal balloon method for obtaining indirect pleural pressure, peculiarities of esophageal pressure measurement in sedated or anesthetized patients, at discussing direct pleural pressure and its correlation with esophageal pressure, in addition to reporting on the impact of PEEP on pleural and esophageal pressures. ⋯ The esophageal balloon is the most common method to obtain indirect pleural pressure. In sedated or anesthetized patients without major respiratory compliance changes, esophageal pressure variation corresponds to pleural pressure variation when PEEP is applied.
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Rev Bras Anestesiol · Jun 2006
[Ephedrine and etilefrine as vasopressor to correct maternal arterial hypotension during elective cesarean section under spinal anesthesia. Comparative study].
Ephedrine is the most popular vasopressor for obstetrics and etilefrine is widely used in regional anesthesia. This study aimed at comparing ephedrine and etilefrine to correct maternal arterial hypotension during elective Cesarean section under spinal anesthesia. ⋯ With the administration method and selected vasopressor doses, there have been no differences between ephedrine and etilefrine used to correct maternal hypotension during Cesarean section under spinal anesthesia.
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Rev Bras Anestesiol · Jun 2006
[The first to use surgical anesthesia was not a dentist, but the physician Crawford Williamson Long].
The history of the discovery of anesthesia is not totally explained, but it is easy to establish that Crawford Williamson Long was the first to use sulfuric ether to operate several patients with no pain and to perform obstetric procedures. History is a bridge connecting the past to the present and should be studied and understood from its first pillars. So, it is justifiable to recall or get to know who was Long, certainly a name almost unknown for many of us, and which has been his participation in the discovery of anesthesia. ⋯ W.T.G. Morton is often considered the discoverer of general anesthesia, especially for being the first to make a successful public demonstration in a major hospital in Boston (USA). However, it has been proven that Long has been the first to use surgical anesthesia and he is acknowledged in several regions of his country as the father of surgical anesthesia and 'its discoverer'. It is also necessary to revert the fact that Long is almost unknown among us and give him the place he is entitled to in the history of general anesthesia.