[en] Background: ICU acquired weakness (ICUAW) is a neuromuscular disease developed in individuals who are admitted to the intensive care unit (ICU). ICUAW has been associated with physical impairments and poor quality of life. Therefore, early diagnosis using the validated tool: the Medical Research Council Sum Score (MRC-SS), is really important to minimize the impact of the disease in critical patient. Objective: the purpose of this study is to evaluate if MRC sum score is a predictive tool of functional outcomes, assessing diaphragm function and functional capacity with the six-minute walk test at ICU survivor. Methods: the search have been perform within May and September of current year. The database used for this purpose are: PubMed, Scopus, CINAHL, PEDRO and Cochrane Library and the follow study types were selected: reviews and systematic review, observational studies and clinical trials. The common feature among articles, was the muscular strength muscle strength assessment with the MRC sum score. The included articles have assessed either diaphragm with specific tools or physical impairments at ICU survivor with the 6MWT. Results: A whole of nine articles were analysed. Seven of these were observational studies and the remaining two were clinical trials. Correlation between ICUAW and diaphragm muscle strength was investigated at four studies. One of these, found a significative and dependence relationship between ICUAW and diaphragm weakness with PTr,stim method and remaining three with MIP. Similarly, association between ICUAW and functional capacity was dependent at four studies. Conclusions: results point to a certain degree of predictive capacity by the MRC in functional outcomes (gait test and diaphragmatic strength). However, more research is needed in this matter, using lower temporal and sample variability and less methodological heterogeneity.

[gl] Introdución: A debilidade adquirida na UCI (DAUCI), é unha entidade clínica estreitamente relacionada co deterioro da función e a calidade de vida do doente crítico. A detección precoz a través da escala validada: Medical Research Council (MRC), é de gran importancia para minorar o impacto da enfermidade sobre o doente crítico. Obxectivo: tratar de establecer se a escala MRC pode predicir os resultados sobre a capacidade funcional, estudada a través de: forza da musculatura respiratoria e función física do supervivente á UCI. Material e método: a revisión efectúase entre os meses de Maio e Setembro de 2020. Fíxose uso das seguintes bases de datos: PubMed, Scopus, CINAHL, PEDRO e Cochrane Library. Seleccionáronse os seguintes tipos de estudo: revisión bibliográfica, sistemática, estudos observacionais e ensaios clínicos, publicados en lingua castelá; inglesa ou portuguesa. A característica común, foi a avaliación da forza muscular periférica a través da MRC. Buscouse que, paralelamente, avaliaran a función do diafragma cos métodos específicos pertinentes e/ou a capacidade funcional, a través do 6-minute walk test (6MWT). Resultados: Analizáronse un total de nove estudos: sete observacionais e dous ensaios clínicos. Destes, catro analizaron a correlación entre a debilidade muscular periférica (DMP) e a debilidade do diafragma (DD). Achouse correlación significativa entre a DMP e a DD, para 1/2 estudos que a mediron co método PTE,stim e 3/3 que a avaliaron coa PIM. A capacidade funcional no supervivente á UCI, valorouse para catro estudos incluídos, establecendo unha asociación dependente entre a DMP e o 6MWT, en 3/4 estudos que a valoraron. Conclusión: os resultados apuntan cara certa capacidade preditiva por parte da MRC sobre os indicadores funcionais avaliados. Con todo, precísase maior respaldo científico, con menor heteroxeneidade mostral, temporal e metodolóxica.