RESUMO
ObjectiveTo identify the appropriate definition, scope of application, the mechanism and the efficacy of the chin-down maneuver in aspiration reduction or prevention. MethodsLiteratures about chin-down published before July, 2021 were reviewed. ResultsA total of 13 articles were included. Chin-down refered to the action of bending the neck and leaning the chin as far as possible toward the chest. Chin-down maneuver could change the position and pressure of the pharyngeal structure to guide the food safely into the esophagus, to prevent or reduce aspiration. Chin-down maneuver was effctive on dysphagia caused by insufficient laryngeal elevation, delayed pharyngeal reflex, epiglottal defect, lychee cartilage defect, and glottis closure defect. However, this action worked in patients with premature overflow of food clumps, weak pharyngeal contraction muscle strength, and poor oral preservation. ConclusionChin-down maneuver is beneficial to aspiration dysphagia after dysphagia.