ABSTRACT
To compare the safety and efficacy between a three-way laryngeal mask airway[TLMA] and a standard laryngeal mask airway [SLMA] in children with pulmonary disorders. We retrospectively analyzed 60 pediatric patients with pulmonary disorders who had surgical procedures with general anesthesia [oxygen flow rate: 1L/min] and volume control ventilation. Among the patients, 42 were inserted with TLMA [group T] and 18 were administered with SLMA [group S]. Several parameters were obtained before, during and after the endoscopic procedure. Ease of insertion and the conditions during insertion were comparable in both groups. There were no significant differences between the two groups regarding changes in hemodynamic and blood gas parameters. However, patients in group S spent significantly longer time in surgery [group T: 35 +/- 24 min compared with group S: 53 +/- 31 min, P < 0.05] and ventilated [group T: 52 +/- 26 min compared with group S: 68 +/- 28 min, P < 0.05] than those in group T. TLMA can be considered more effective for ventilation in children with pulmonary disorders who are undergoing general anesthesia.
ABSTRACT
Three-way laryngeal mask airway (tLMA) was used in 31 patients aged 4-68 yr, weighing 10- 79 kg undergoing tracheal foreign body removal under general anesthesia. Anesthesia was induced with propofol 3 mg/kg, vecuronium 0.12 mg/kg and remifentanil 0.4 μg/kg. tLMA was inserted. The patients were mechanically ventilated. Anesthesia was maintained with iv infusion of propofol 2 mg . Kg-1 ? H-1, vecuronium 0.08 mg·kg-1·h-1 and remifentanil 0.15 μg·kg-1 ·min-1 . Radial artery was cannulated for BP monitoring and blood sampling. The operation time was 6-34 min and mechanical ventilation time 19-45 min. There was no significant change in SP, DP, HR, VT, Ppeak and Ppeak CO, during operation as compared with the baseline values before anesthesia. SpO2 was significantly increased at T2-6. PCO2, PO2 and O2sat were obviously improved after tLMA was used. All the patients emerged bom anesthesia within 30 min after operation. No aspiration, obvious gastrointestinal inflation, and pharyngeal and laryngeal edema and injury occurred. Mild agitation occurred in a short time during the recovery period in one patient. No complication occurred.
ABSTRACT
The reasons why some medical treatment facilities (MTF) can not be repaired and returned on time in some medical therapy units are explained. Countermeasures are put forward: repairing and supervising mechanisms must be established between the medical therapy units and factories in time; professional maintainers can be asked to repair MTF or cooperate with technicians in hospital when necessary so as to keep MTF in good condition.