Anaesthesia
-
Clinical Trial
An evaluation of conscious sedation using propofol and remifentanil for tension-free vaginal tape insertion.
Tension-free vaginal tape insertion is a recommended treatment for stress incontinence. There is evidence that intra-operative testing of continence by asking patients to cough may improve outcomes, but an optimal sedation regimen has not been determined. We prospectively evaluated the effectiveness of propofol and remifentanil infusions in 25 patients using pre- and post-sedation peak cough pressures and pain scores. ⋯ Pain scores (median, IQR [range]) were low for local anaesthetic infiltration (0, [0-1]) and first (0, [0-1]) and second (0, [0-3.5]) needle insertions. Of the 19 patients completing the ISAS, all felt safe and satisfied. Sedation using propofol and remifentanil provides acceptable analgesia, satisfaction and effective continence testing.
-
Randomized Controlled Trial
The effect of intravenous lidocaine on QT changes during tracheal intubation.
Laryngoscopy and tracheal intubation may provoke changes of cardiac repolarisation. The aim of this study was to assess the effect of intravenous lidocaine on the ECG changes induced by laryngoscopy and tracheal intubation. Forty-three female patients were randomly allocated to receive lidocaine (1.5 mg.kg(-1)) or placebo immediately after induction of anaesthesia and changes in the ECG and arterial blood pressure were recorded. ⋯ In the placebo group, significant increases in QTcb, QTcf and QTcF values were observed after intubation compared to either control measurements or to comparative measurements in the lidocaine group. There were no significant differences in TDR either between or within the groups. Lidocaine diminishes prolongation of QTc, induced by tracheal intubation but there is no effect of intubation on TDR.