Brazilian Journal of Anesthesiology
https://bjan-sba.org/article/doi/10.1016/j.bjane.2015.09.003
Brazilian Journal of Anesthesiology
Scientific Article

Postoperative surveillance in neurosurgical patients - usefulness of neurological assessment scores and bispectral index

Monitoramento de pacientes neurocirúrgicos no pós-operatório - utilidade dos escores de avaliação neurológica e do índice bispectral

Silvia Herrero; Enrique Carrero; Ricard Valero; Jose Rios; Neus Fábregas

http://dx.doi.org/10.1016/j.bjane.2015.09.003 Braz J Anesthesiol, vol.67, n2, p.153-165, 2017
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Abstract

Abstract Background and objectives: We examined the additive effect of the Ramsay scale, Canadian Neurological Scale (CNS), Nursing Delirium Screening Scale (Nu-DESC), and Bispectral Index (BIS) to see whether along with the assessment of pupils and Glasgow Coma Scale (GCS) it improved early detection of postoperative neurological complications. Methods: We designed a prospective observational study of two elective neurosurgery groups of patients: craniotomies (CG) and non-craniotomies (NCG). We analyze the concordance and the odds ratio (OR) of altered neurological scales and BIS in the Post-Anesthesia Care Unit (PACU) for postoperative neurological complications. We compared the isolated assessment of pupils and GCS (pupils-GCS) with all the neurologic assessment scales and BIS (scales-BIS). Results: In the CG (n = 70), 16 patients (22.9%) had neurological complications in PACU. The scales-BIS registered more alterations than the pupils-GCS (31.4% vs. 20%; p < 0.001), were more sensitive (94% vs. 50%) and allowed a more precise estimate for neurological complications in PACU (p = 0.002; OR = 7.15, 95% CI = 2.1-24.7 vs. p = 0.002; OR = 9.5, 95% CI = 2.3-39.4). In the NCG (n = 46), there were no neurological complications in PACU. The scales-BIS showed alterations in 18 cases (39.1%) versus 1 (2.2%) with the pupils-GCS (p < 0.001). Altered CNS on PACU admission increased the risk of neurological complications in the ward (p = 0.048; OR = 7.28, 95% CI = 1.021-52.006). Conclusions: Applied together, the assessment of pupils, GCS, Ramsay scale, CNS, Nu-DESC and BIS improved early detection of postoperative neurological complications in PACU after elective craniotomies.

Keywords

Bispectral index monitor, Craniotomy elective, Neurologic examination, Neurosurgical procedures, Postoperative care, Postoperative complications

Resumo

Resumo Justificativa e objetivos: Avaliamos o efeito aditivo da escala de Ramsay, Escala Neurológica Canadense (CNS), Escala da Enfermagem de Triagem de Delírio (Nu-DESC) e Índice Bispectral (BIS) para observar se, juntamente com a avaliação das pupilas e da Escala de Coma de Glasgow (GCS), melhorava a detecção precoce de complicações neurológicas no pós-operatório. Métodos: Projetamos um estudo observacional, prospectivo, de dois grupos de pacientes submetidos à neurocirurgia eletiva: craniotomia (Grupo C) e não craniotomia (Grupo NC). Analisamos a concordância e a razão de chance (OR) de alterações nas escalas neurológicas e no BIS na sala de recuperação pós-anestesia (SRPA) para complicações neurológicas no pós-operatório. Comparamos a avaliação isolada das pupilas e da GCS (pupilas-GCS) com todas as escalas de avaliação neurológica e o BIS (escalas-BIS). Resultados: No Grupo C (n = 70), 16 pacientes (22,9%) apresentaram complicações neurológicas na SRPA. As escalas-BIS registraram mais alterações do que as pupilas-GCS (31,4% vs. 20%; p < 0,001), foram mais sensíveis (94% vs. 50%) e permitiram uma estimativa mais precisa das complicações neurológicas na SRPA (p = 0,002; OR = 7,15, IC 95% = 2,1-24.7 vs. p = 0,002; OR = 9,5, IC 95% = 2,3-39,4). No grupo NC (n = 46) não houve complicações neurológicas na SRPA. As escalas-BIS mostraram alterações em 18 casos (39,1%) versus um caso (2,2%) com as pupilas-GCS (p < 0,001). Alteração na CNS na admissão à SRPA aumentou o risco de complicações neurológicas na enfermaria (p = 0,048; OR = 7,28, IC 95% = 1,021-52,006). Conclusões: Aplicados em conjunto, avaliação das pupilas, GCS, escala de Ramsay, CNS, Nu-DESC e BIS melhoraram a detecção precoce de complicações neurológicas no pós-operatório na SRPA após craniotomias eletivas.

Palavras-chave

Monitor BIS, Craniotomia eletiva, Exame neurológico, Procedimentos neurocirúrgicos, Cuidados no pós-operatório, Complicações no pós-operatório

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