[Induction and maintenance of anesthesia with propofol and with thiopental-isoflurane. Comparative study]. / Inducción y mantenimiento de la anestesia con propofol y con tiopental-isoflurano. Estudio comparativo.

Thirty one patients of both sexes, ASA I-II, aged 18-65 years have undergone a randomized trial in order to compare two anesthetic techniques. Patients in group I (n = 15) received a 2.5 mg/kg induction dose of propofol followed by a continuous infusion of the same drug at 3.6-9 mg/kg/h. Patients in group II (n = 16) were induced with 4 mg/kg thiopentone and maintained with 0.5-1.5% isoflurane. Both groups were evaluated for time and quality of induction, collateral effects, quality and hemodynamic stability during maintenance and time and quality of recovery. Induction time for patients in group I (49.6 +/- 15 seg) was significantly longer than for group II patients (23 +/- 3 seg) (p less than 0.01). Respiratory depression (apnea period longer than 20 seconds) was also commoner and longer in group I (p less than 0.01) although no problems were observed with manual ventilation. One patient in group I required an extra dose for induction. Both groups had similar hemodynamic changes along the procedure. Awakening time for patients in group I (24.2 +/- 7.3 min) was significantly longer than for patients in group II (14.3 +/- 4.4 min) (p less than 0.001). Although surgery times were longer in group I, a possible cumulative effect of propofol for infusions over 90 min cannot be discarded.

[Incidence of dural puncture headache after intradural anesthesia carried out by residents]. / Incidencia de cefalea pospunción dural tras anestesia intradural realizada por médicos residentes.

To evaluate dural puncture headache (DPH) after intradural anesthesia (IA) carried out by residents of anesthesiology and reanimation, and its relation with the degree of difficulty of the puncture, a sample of 81 patients with ages ranging between 48 and 88 years was evaluated. The incidence of DPH was 12.35%, and it was not statistically associated with age, sex, anesthetic approach, local anesthetic, or degree of difficulty of lumbar puncture.