INTRATHECAL PETHIDINE AS A SOLE ANAESTHETIC AGENT FOR PERINEAL SURGERIES

Dr.C.Kumaran; Dr.Shanthi Paulraj

Volume : VII, Issue : III, March - 2018

INTRATHECAL PETHIDINE AS A SOLE ANAESTHETIC AGENT FOR PERINEAL SURGERIES

Dr. C. Kumaran, Dr. Shanthi Paulraj

Abstract :

Aims

This study is aimed at evaluating the effectiveness of 5% pethidine hydrochloride solution as spinal anaesthesic for perineal surgeries.

Materials and methods

A total of 50 patients in the age group of 20–60 years and weighing between 30–70 kg and , belonged to ASA physical status I were selected for this study. After obtaining consent , subarachnoid block was performed using intrathecal 5% pethidine hydrochloride 0.7mg/kg(without adrenaline) and test parameters were noted.

Results

The onset of sensory blockade was 2–4 minute with mean 2.55+0.56 minutes. The maximum dermatome level of sensory block obtained with intrathecal pethidine was T8 and mean level of sensory blockade was T12. The mean duration of sensory blockade lasted for 181.90±15.10 minutes. The motor blockade was achieved 2–3 minutes after the sensory block. The time of onset of motor block after injection set in 4–7 minutes ,with mean 5.8±0.54 minutes. The range of analgesia in the post operative period was from 420 minutes to 670 minutes with mean 596.60±43.54 minutes. The incidence of side effects were low.

Conclusion :

Intrathecal pethidine in a dose of 0.7 mg/kg body weight is provided to be safe and effective as a sole anaethetic agent for perineal surgeries it produce prolonged analgesia