[A parametric description of the parenteral nutrition protocols of 19 American hospitals]

In the preparation of a centralized parenteral nutrition unit project in our hospital, following the creation of a multi-disciplinary commission entrusted with the study of this project, we proceeded to evaluate parenteral nutrition protocols of national and foreign hospitals, as a first approach to the subject. This study evaluates and extracts the data we consider most relevant in a sample of 19 American hospitals. With regard to the types of parenteral diet, we observed that most of them (63%) had "standard diets", mainly formulated with 25% glucose and 4.25% crystalline amino acids. None of the protocols studied contained alternatives to glucose as a calorie-contributor, nor were there special formulae for amino acids, although many of them included it in their therapies for use if considered necessary. In all protocols, the contribution of fats was reduced to concrete situations and administered in a different way to the rest of the food in 73% of cases. With regard to additives, despite the existence of standard formulations of electrolytes and vitamins and oligoelements, in 100% of the hospitals studied, there was the possibility of formulating each element separately. Administration was done in several doses per day in 42% of cases and in 100%, using perfusion pumps. The data obtained from this review was of great value in preparing our own parenteral nutrition protocols.