Brazilian Journal of Anesthesiology
https://app.periodikos.com.br/journal/rba/article/doi/10.1016/j.bjane.2014.10.004
Brazilian Journal of Anesthesiology
Scientific Article

Effects of carbon dioxide insufflation on regional cerebral oxygenation during laparoscopic surgery in children: a prospective study

Efeitos da insuflação de dióxido de carbono sobre a oxigenação cerebral regional durante cirurgia laparoscópica em crianças: um estudo prospectivo

Ayca Tas Tuna; Ibrahim Akkoyun; Sevtap Darcin; Onur Palabiyik

http://dx.doi.org/10.1016/j.bjane.2014.10.004 Braz J Anesthesiol, vol.66, n3, p.249-253, 2016
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Abstract

ABSTRACT BACKGROUND AND OBJECTIVES: Laparoscopic surgery has become a popular surgical tool when compared to traditional open surgery. There are limited data on pediatric patients regarding whether pneumoperitoneum affects cerebral oxygenation although end-tidal CO2 concentration remains normal. Therefore, this study was designed to evaluate the changes of cerebral oxygen saturation using near-infrared spectroscope during laparoscopic surgery in children. METHODS: The study comprised forty children who were scheduled for laparoscopic (Group L, n = 20) or open (Group O, n = 20) appendectomy. Hemodynamic variables, right and left regional cerebral oxygen saturation (RrSO2 and LrSO2), fraction of inspired oxygen, end-tidal carbon dioxide pressure (PETCO2), peak inspiratory pressure (Ppeak), respiratory minute volume, inspiratory and end-tidal concentrations of sevoflurane and body temperature were recorded. All parameters were recorded after anesthesia induction and before start of surgery (T0, baseline), 15 min after start of surgery (T1), 30 min after start of surgery (T2), 45 min after start of surgery (T3), 60 min after start of surgery (T4) and end of the surgery (T5). RESULTS: There were progressive decreases in both RrSO2 and LrSO2 levels in both groups, which were not statistically significant at T1, T2, T3, T4. The RrSO2 levels of Group L at T5 were significantly lower than that of Group O. One patient in Group L had an rSO2 value <80% of the baseline value. CONCLUSIONS: Carbon dioxide insufflation during pneumoperitoneum in pediatric patients may not affect cerebral oxygenation under laparoscopic surgery.

Keywords

Pediatric anesthesia, Carbon dioxide insufflation, Regional cerebral oxygen, Laparoscopy

Resumo

RESUMO JUSTIFICATIVA E OBJETIVOS: A cirurgia laparoscópica se tornou uma ferramenta cirúrgica popular em comparação com a cirurgia aberta tradicional. Há poucos dados sobre pacientes pediátricos no que se refere ao pneumoperitônio afetar a oxigenação cerebral enquanto a concentração de CO2 no fim da expiração continua normal. Portanto, este estudo teve como objetivo avaliar as alterações da saturação de oxigênio cerebral com espectroscopia de infravermelho próximo durante cirurgia laparoscópica em crianças. MÉTODOS: O estudo recrutou 40 crianças programadas para apendicectomia laparoscópica (Grupo L, n = 20) ou aberta (Grupo A, n = 20). Variáveis hemodinâmicas, saturação de oxigênio cerebral regional direita e esquerda (RrSO2 e LrSO2), fração inspirada de oxigênio, pressão expiratória final de dióxido de carbono (PETCO2), pico de pressão inspiratória (Ppico), volume minuto respiratório, concentrações de sevoflurano inspirado e expirado e temperatura corporal foram registrados. Todos os parâmetros foram registrados após a indução da anestesia e antes do início da cirurgia (T0, basal), 15 minutos após o início da cirurgia (T1), 30 minutos após o início da cirurgia (T2), 45 minutos após o início da cirurgia (T3), 60 minutos após o início da cirurgia (T4) e no fim da cirurgia (T5). RESULTADOS: Houve diminuição progressiva em ambos os níveis de RrSO2 e LrSO2 nos dois grupos, mas não foi estatisticamente significativa em T1, T2, T3, T4. Os níveis de RrSO2 do Grupo L em T5 foram significativamente menores do que os do Grupo A. Um paciente do Grupo L apresentou um valor rSO2 < 80% do valor basal. CONCLUSÕES: A insuflação de dióxido de carbono durante o pneumoperitônio em pacientes pediátricos pode não afetar a oxigenação cerebral em cirurgia laparoscópica.

Palavras-chave

Anestesia pediátrica, Insuflação de dióxido de carbono, Oxigênio cerebral regional, Laparoscopia

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