Indian journal of anaesthesia
-
Scalp blocks combined with general anaesthesia reduce pin and incision response, along with providing stable perioperative haemodynamics and analgesia. Clonidine has proved to be a valuable additive in infiltrative blocks. We studied the efficacy and safety of addition of clonidine 2 μg/kg to scalp block with 0.25% bupivacaine (Group B) versus plain 0.25% bupivacaine (Group A) for supratentorial craniotomies. ⋯ Addition of clonidine to scalp block provided better perioperative haemodynamic stability and significantly prolonged analgesia.
-
Skull pin application is intensely painful and can be accompanied by detrimental haemodynamic changes. We compared intravenous (IV) dexmedetomidine with local infiltration of lignocaine at pin application sites to attenuate haemodynamic changes associated with pin application. ⋯ IV dexmedetomidine 1 mcg/kg over 10 min is comparable to local infiltration of 2% lignocaine at pin application sites to attenuate the haemodynamic response associated with skull pin application. However, use of dexmedetomidine is associated with significantly higher incidence of hypotension and bradycardia.