Through systematic review related to nursing care for patients undergoing surgical procedures articles, classified by levels of evidence; based on the theory of unpleasant symptoms Elizabeth Lenz in which by its three components: symptoms, influencing factors and performance outcomes while four dimensions: anxiety, quality, duration and intensity of symptoms, argue the importance of nursing care based on the mid-range theory: unpleasant symptoms of Elizabeth Lenz et al, to be applied in the context of the care of patients undergoing surgical intervention, so as to decrease the effects of symptoms in the postoperatively