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Neurology India
Medknow Publications on behalf of the Neurological Society of India
ISSN: 0028-3886
EISSN: 0028-3886
Vol. 50, No. 2, 2002, pp. 168-173
Bioline Code: ni02047
Full paper language: English
Document type: Research Article
Document available free of charge

Neurology India, Vol. 50, No. 2, 2002, pp. 168-173

 en Cardiovascular Responses to Scalp Infiltration with Reduced Concentration of Adrenaline
B.K. Biswas, P.K. Bithal, H.H. Dash


A prospective randomized controlled study was carried out in 41 adult neurosurgical patients to find out the hemodynamic effects following scalp infiltration with 0.5% lignocaine with or without adrenaline. The patients were divided randomly into two groups. Group I patients (n=21) received 0.5% lignocaine with adrenaline (1:8,00,000) for scalp infiltration and group II patients (n=20) received 0.5% lignocaine without adrenaline. Continuous monitoring of ECG, heart rate and arterial blood pressure was carried out every minute for 20 minutes following scalp infiltration. Blood loss while raising the scalp flap was assessed by the neurosurgeon who was unaware of the study. No significant hemodynamic disturbances were observed in either group. However, Group I patients had significantly (p=0.001) less bleeding on incision. From this study, we conclude that 0.5% lignocaine with adrenaline (1:8,00,000) does not give rise to any cardiovascular disturbances during and following scalp infiltration. Rather, it minimises blood loss while raising the craniotomy flap.

Neurosurgical anesthesia, Complications, Cardiovascular responses, Lignocaine, Adrenaline

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