Brazilian Journal of Anesthesiology
https://bjan-sba.org/article/doi/10.1016/j.bjane.2023.11.001
Brazilian Journal of Anesthesiology
Original Investigation

Cross-cultural adaptation and validation of the Iowa satisfaction with anesthesia scale for use in Brazil: a cross-sectional study

Adaptação transcultural e validação da Escala de Satisfação com Anestesia de Iowa para uso no Brasil: um estudo transversal

Nicole Morem Pilau Moritz, José Eduardo Moritz, Gabriel Oscar Cremona Parma, Franklin Dexter, Jefferson Traebert

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Abstract

Background

The Iowa Satisfaction with Anesthesia Scale (ISAS) was developed to assess the satisfaction of patients undergoing sedation with monitored anesthesia care. This study aimed to cross-culturally adapt the ISAS instrument and evaluate the acceptability, validity, and reliability of the proposed Brazilian version (ISAS-Br).

Methods

The cross-cultural adaptation process involved translation, synthesis, back-translation, expert committee review, pre-testing, and final review of the ISAS-Br. A cross-sectional study was conducted, involving 127 adult individuals undergoing ambulatory surgeries with moderate/deep sedation. The acceptability, reliability, and construct validity of the scale were assessed.

Results

The cross-cultural adaptation process did not require significant changes to the final version of the scale. The ISAS-Br demonstrated excellent acceptability, with a completion rate of 99% and an average completion time of 4.6 minutes. Exploratory factor analysis revealed three factors: emotional well-being, physical comfort, and anxiety relief, with respective composite reliability coefficient values of 0.874, 0.580, and 0.428. The test-retest reliability of the ISAS-Br, measured by the intraclass correlation coefficient, was 0.67 (95% Confidence Interval [95% CI] 0.42 to 0.83), and the Bland-Altman plot showed satisfactory agreement between the measurements.

Conclusion

The proposed Brazilian version of the ISAS underwent successful cross-cultural adaptation according to international standards. It demonstrated good acceptability and reliability, regarding the assessment of temporal stability. However, the ISAS-Br exhibited low internal consistency for some factors, indicating that this instrument lacks sensitivity to assess the satisfaction of deeply sedated patients. Further studies are necessary to explore the hypotheses raised based on the knowledge of its psychometric properties.

Keywords

Ambulatory surgical procedures; Anesthesia; Conscious sedation; Patient satisfaction; Validation study;

Resumo

Introdução

A Escala de Satisfação com Anestesia de Iowa (ISAS) foi desenvolvida para avaliar a satisfação de pacientes submetidos à sedação com cuidados anestésicos monitorados. Este estudo teve como objetivo adaptar transculturalmente o instrumento ISAS e avaliar a aceitabilidade, validade e confiabilidade da versão brasileira proposta (ISAS-Br).

Métodos

O processo de adaptação transcultural envolveu tradução, síntese, retrotradução, revisão por comitê de especialistas, pré-teste e revisão final do ISAS-Br. Foi realizado um estudo transversal envolvendo 127 indivíduos adultos submetidos a cirurgias ambulatoriais com sedação moderada/profunda. A aceitabilidade, confiabilidade e validade de construto da escala foram avaliadas.

Resultados

O processo de adaptação transcultural não exigiu alterações significativas na versão final da escala. O ISAS-Br demonstrou excelente aceitabilidade, com taxa de conclusão de 99% e tempo médio de conclusão de 4,6 minutos. A análise fatorial exploratória revelou três fatores: bem-estar emocional, conforto físico e alívio da ansiedade, com respectivos valores de coeficiente de confiabilidade composto de 0,874, 0,580 e 0,428. A confiabilidade teste-reteste do ISAS-Br, medida pelo coeficiente de correlação intraclasse, foi de 0,67 (intervalo de confiança de 95% [IC95%] 0,42 a 0,83), e o gráfico de Bland-Altman mostrou concordância satisfatória entre as medidas.

Conclusão

A versão brasileira proposta da ISAS passou por adaptação transcultural com sucesso de acordo com padrões internacionais. Demonstrou boa aceitabilidade e confiabilidade, no que diz respeito à avaliação da estabilidade temporal. Entretanto, o ISAS-Br apresentou baixa consistência interna para alguns fatores, indicando que este instrumento carece de sensibilidade para avaliar a satisfação de pacientes profundamente sedados. Novos estudos são necessários para explorar as hipóteses levantadas com base no conhecimento de suas propriedades psicométricas.

Palavras-chave

Procedimentos cirúrgicos ambulatoriais; Anestesia; Sedação consciente; Satisfação do paciente; Estudo de validação

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Submitted date:
07/23/2023

Accepted date:
11/04/2023

6567b00fa953956c1c03bfe2 rba Articles
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