Résumé
BACKGROUND: Propofol has a high incidence of infusion pain. We hypothesized that propofol infusion pain might be prevented by infusing remifentanil before starting the propofol infusion in a clinical setting where target controlled infusions (TCI) of both drugs were used. We compared the efficacy of remifentanil TCI administered 90 seconds before propofol TCI with remifentanil TCI and propofol TCI given immediately after a 40 mg lidocaine bolus in prevention of propofol infusion pain. METHODS: One hundred sixty five ASA 1 or 2 patients scheduled for elective surgery under general anesthesia were classified in three groups. Group C: propofol TCI and remifentanil TCI was started at the same time (n = 55), group L: lidocaine 40 mg injection immediately prior to propofol TCI and remifentanil TCI (n = 55), group R: remifentanil TCI was started 90 seconds before propofol TCI (n = 55). Pain severity of propofol infusion was evaluated using a four-point scale (none, mild, moderate, severe). RESULTS: The incidence of pain in group R and group L was significantly lower than in group C. There was no significant difference between group R and group L. But the incidence of moderate and severe pain in group R was significantly lower than in group L (P < 0.05). CONCLUSIONS: Remifentanil TCI 90 seconds before propofol TCI reduces propofol infusion pain than propofol TCI and remifentanil TCI started at the same time. This protocol is considered to be more effective in alleviating moderate and severe pain than lidocaine.
Sujets)
Humains , Anesthésie générale , Incidence , Lidocaïne , PropofolRésumé
A patient with a large bronchopleural fistula presents several intraoperative challenges for the anesthesiologist, particularly if bullae coexist bilaterally. Ideally, a double lumen tube is inserted while the patient is conscious or breathing spontaneously under general anesthesia to prevent possible tension pneumothorax in the contralateral lung due to positive-pressure ventilation and the possibility of inadequate ventilation due to an air leak from the fistula. However, we inserted a single lumen tube instead of a double lumen tube, because this patient had multiple giant bullae bilaterally and the contralateral lung tissue was almost completely compressed and destroyed. We report the use of a single lumen tube under volatile general anesthesia with synchronized intermittent mandatory ventilation with small tidal volume. In addition, we used permissive hypercapnia to further minimize barotraumas. Due to permissive hypercapnia, there were no cardiovascular consequences.
Sujets)
Humains , Anesthésie générale , Barotraumatismes , Fistule bronchique , Fistule , Hypercapnie , Poumon , Pneumothorax , Ventilation à pression positive , Respiration , Rupture , Volume courant , VentilationRésumé
Osteonecrosis of the humeral head is an uncommon and slow progressive condition. This condition is difficult to be recognized because its initial symptoms are nonspecific. Simple radiography is the standard tool to stage disease progression. However, plain radiographic findings of osteonecrosis are nearly normal in the initial stage. We report a case of 74 years old female patient who have suffered from painful limitation of the shoulder joint. She had no trauma history and no specific predisposing factors for osteonecrosis of the humeral head. To confirm, follow up radiography and shoulder magnetic resonance imaging were performed.