Comparison of the Effects of Propofol and Sevoflurane Combined With Remifentanil on Transcranial Electric Motor-evoked and Somatosensory-evoked Potential Monitoring During Brainstem Surgery.
J Neurosurg Anesthesiol
; 27(4): 282-8, 2015 Oct.
Article
em En
| MEDLINE
| ID: mdl-25574800
ABSTRACT
BACKGROUND:
We compared the effect of propofol and sevoflurane combined with remifentanil under comparable bispectral index (BIS) levels on transcranial electric motor-evoked potentials (TceMEPs) and somatosensory-evoked potentials (SSEPs) during brainstem surgery. MATERIALS ANDMETHODS:
A total of 40 consecutive patients (20 per group) undergoing brainstem surgery were randomly assigned to 2 groups receiving either 0.5 MAC sevoflurane or propofol at an effect-site concentration of 2.5 µg/mL for maintenance of anesthesia. Remifentanil was administered to both groups at a rate of 0.25 to 0.35 µg/kg/min along with cisatracurium (0.03 to 0.04 mg/kg/h). TceMEP recordings were carried out in the abductor pollicis brevis, abductor hallucis, and tibialis anterior muscles, whereas cortical SSEPs were measured with posterior tibial nerve stimulation. Amplitudes and latencies of TceMEPs and SSEPs were recorded at 1, 2, 3, and 4 hours after the induction of anesthesia.RESULTS:
BIS values remained in the 45 to 60 range. Amplitudes of TceMEPs were significantly higher in the propofol group than those in the sevoflurane group (P<0.05, at all study time points in abductor pollicis brevis and abductor hallucis muscles and only 4 h after anesthetic induction for tibialis anterior muscle), whereas latencies were shorter in the propofol group than those in the sevoflurane group (P<0.05). No differences were observed in latency and amplitude while recording SSEPs between the 2 anesthetic techniques. None of the patients had TceMEPs and SSEPs amplitude or latency changes, exceeding our set limit.CONCLUSIONS:
Both sevoflurane and propofol at low dosages combined with remifentanil under comparable BIS values and partial muscle relaxation can be used when monitoring of TceMEPs and SSEPs is required for brainstem surgery.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Piperidinas
/
Tronco Encefálico
/
Propofol
/
Anestésicos Intravenosos
/
Anestésicos Inalatórios
/
Potencial Evocado Motor
/
Procedimentos Neurocirúrgicos
/
Potenciais Somatossensoriais Evocados
/
Monitorização Neurofisiológica Intraoperatória
/
Éteres Metílicos
Tipo de estudo:
Clinical_trials
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Neurosurg Anesthesiol
Assunto da revista:
ANESTESIOLOGIA
/
NEUROCIRURGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Espanha