Details

Autor(en) / Beteiligte

• FÖRSTER, J. G
• ROSENBERG, P. H
• HARILAINEN, A
• SANDELIN, J
• PITKÄNEN, M. T

Titel

Chloroprocaine 40mg produces shorter spinal block than articaine 40mg in day-case knee arthroscopy patients

Ist Teil von

• Acta anaesthesiologica Scandinavica, 2013-08, Vol.57 (7), p.911

Ort / Verlag

Copenhagen: Wiley Subscription Services, Inc

Erscheinungsjahr

2013

Quelle

Wiley-Blackwell Full Collection

Beschreibungen/Notizen

• Background Articaine and chloroprocaine have recently gained interest as short-acting spinal anaesthetics. Based on previous work comparing articaine 60mg with chloroprocaine 40mg, we hypothesised that articaine 40mg and chloroprocaine 40mg would produce similar spinal anaesthesa regarding block onset, maximal spread, and recovery. Methods In this randomised, double-blind study, adult patients (18-70 years, American Society of Anaesthesiologists physical status I-III, BMI<36kg/m2) scheduled for day-case knee arthroscopy received either articaine 40mg (20mg/ml) (group A40, n=16) or chloroprocaine 40mg (20mg/ml) (group C40, n=18) intrathecally. Telephone interviews were performed on the first and seventh postoperative day to disclose possible side effects, e.g. transient neurological symptoms (TNS). Results The groups were comparable regarding demographic data, onset and maximal spread of spinal anaesthesia, and duration of surgery. Surgery could be performed successfully under spinal anaesthesia except once in A40 (insufficient block) and once in C40 (prolonged surgery). Complete recovery was significantly slower in A40 vs. C40 for both motor block (105 (94/120) vs. 75 (71/90) min) [P<0.001, Mann-Whitney U-test (MW-U)] and sensory block [135 (109/176) vs. 105min (90/124)] (P<0.02, MW-U), respectively [data are median (25th/75th percentiles)]. One patient from A40 showed mild TNS. Conclusion Both A40 and C40 provided mainly adequate spinal anaesthesia for day-case knee arthroscopy. While onset and maximal spread were comparable, the recovery from motor block was clearly faster with chloroprocaine after equivalent doses of spinal articaine and chloroprocaine. [PUBLICATION ABSTRACT]