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The effects of memantine on recovery, cognitive functions, and pain after propofol anesthesia / Efeitos da memantina sobre a recuperação, funções cognitivas e dor após a anestesia com propofol
Emik, Ulku; Unal, Yusuf; Arslan, Mustafa; Demirel, Cengiz Bekir.
  • Emik, Ulku; Gazi University. School of Medicine. Department of Anesthesiology and Reanimation. Ankara. TR
  • Unal, Yusuf; Gazi University. School of Medicine. Department of Anesthesiology and Reanimation. Ankara. TR
  • Arslan, Mustafa; Gazi University. School of Medicine. Department of Anesthesiology and Reanimation. Ankara. TR
  • Demirel, Cengiz Bekir; Gazi University. School of Medicine. Department of Anesthesiology and Reanimation. Ankara. TR
Rev. bras. anestesiol ; 66(5): 485-491, Sept.-Oct. 2016. tab
Article in English | LILACS | ID: lil-794819
ABSTRACT
Abstract

Objectives:

Postoperative cognitive dysfunction refers to the problems associated with thought and memory that are often experienced after major surgery. The aim of this study is to evaluate the effects of intraperitoneally administered memantine on recovery, cognitive functions, and pain after propofol anesthesia.

Methods:

The study was conducted in Gazi University Animal Research Laboratory, Ankara, Turkey in January 2012. Twenty-four adult female Wistar Albino rats weighing 170-270 g were educated for 300 s in the radial arm maze (RAM) over three days. Group P was administered 150 mg kg−1 of intraperitoneal (IP) propofol; Group M was given 1 mg kg−1 of IP memantine; and Group MP was given 1 mg kg−1 of IP memantine before being administered 150 mg kg−1 of IP propofol. The control group received only IP saline. RAM and hot plate values were obtained after recovery from the groups that received propofol anesthesia and 30 min after the administration of drugs in other two groups.

Results:

The duration of recovery for Group MP was significantly shorter than Group P (p < 0.001), and the number of entries and exits in the RAM by Group MP was significantly higher during the first hour when compared to Group P (p < 0.0001). Hot plate values, on the other hand, were found to be significantly increased in all groups when compared to the control values, aside from Group C (p < 0.0001).

Conclusion:

In this study, memantine provided shorter recovery times, better cognitive functions, and reduced postoperative pain. From this study, we find that memantine has beneficial effects on recovery, cognitive functions, and pain after propofol anesthesia.
RESUMO
Resumo

Objetivos:

A disfunção cognitiva no pós-operatório refere-se a problemas associados ao pensamento e à memória que são frequentemente manifestados após uma cirurgia de grande porte. O objetivo deste estudo foi avaliar os efeitos da memantina administrada por via intraperitoneal sobre a recuperação, as funções cognitivas e a dor após a anestesia com propofol.

Métodos:

O estudo foi feito no Laboratório de Pesquisa com Animais da Universidade de Gazi, Ankara, Turquia, em janeiro de 2012. Vinte e quatro ratos albinos do sexo feminino, adultos, da linhagem Wistar, com 170-270 g, foram treinados durante 300 segundos no labirinto radial de oito braços (LRB) durante três dias. O Grupo P recebeu 150 mg/kg−1 de propofol por via intraperitoneal (IP), o Grupo H recebeu 1 mg/kg−1 de memantina IP e o Grupo MP recebeu 1 mg/kg−1 de memantina IP antes da administração de 150 mg/kg−1 de propofol (IP). O grupo controle recebeu apenas solução salina IP. Os valores do LRB e da placa quente foram obtidos após a recuperação dos grupos que receberam propofol e 30 minutos após a administração dos fármacos nos outros dois grupos.

Resultados:

O tempo de recuperação do Grupo MP foi significativamente menor do que o do Grupo P (p < 0,001) e o número de entradas e saídas do LRB do Grupo MP foi significativamente maior durante a primeira hora, em comparação com o Grupo P (p < 0,0001). Os valores da placa quente, por outro lado, foram significativamente maiores em todos os grupos, em comparação com os valores do grupo controle, exceto pelo Grupo C (p < 0,0001).

Conclusão:

No presente estudo, memantina proporcionou tempos mais curtos de recuperação, funções cognitivas melhores e reduziu a dor no pós-operatório. A partir deste estudo, descobrimos que a memantina tem efeitos benéficos sobre a recuperação, as funções cognitivas e a dor após anestesia com propofol.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Pain, Postoperative / Anesthesia Recovery Period / Memantine / Propofol / Cognition / Excitatory Amino Acid Antagonists / Anesthetics, Intravenous Limits: Animals Language: English Journal: Rev. bras. anestesiol Journal subject: Anesthesiology Year: 2016 Type: Article Affiliation country: Turkey Institution/Affiliation country: Gazi University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Pain, Postoperative / Anesthesia Recovery Period / Memantine / Propofol / Cognition / Excitatory Amino Acid Antagonists / Anesthetics, Intravenous Limits: Animals Language: English Journal: Rev. bras. anestesiol Journal subject: Anesthesiology Year: 2016 Type: Article Affiliation country: Turkey Institution/Affiliation country: Gazi University/TR