COMPORTAMIENTO DE LAS FORMULAS _NDICE DE PRONÓSTICO NUTRICIONAL ADAPTADO (IPNa) DE LA ORIGINAL DE MULLEN Y EL _NDICE DE RIESGO NUTRICIONAL (IRN) EN PACIENTES DE CIRUG _AS ELECTIVAS

In 1999 the Mullen and Buzby's formula was adapted, eliminating hypersensitivity skin tests and removing the alfa factor with coefficients similar to the original, obtaining a new formula called adapted Nutritional Prognostic index (aNPI). Objective: To determine the behavior of this new formula and the nutritional risk index with post surgical complications. Methodology: 110 elective patients for surgery were studied by carrying out pre- and post-operational evaluation. Results: the average age was 50 years old; 52% showed signs of being overweight or obese; 89,15% had normal serum albumin and 60% showed a deficit of transferrine; 75£ % had low risk NPIa and 62,7% had a normal NRI. The main surgeries were hysterectomies and cholecystectomies, 92% were without complications (p=0,001). It was found a statistically significant relationship between each classification of nutritional index with the presence o absence of complications (p=0.001). When comparing these indexes, the statistical difference is maintained (p= 0.00). The same was observed when comparing the classification ofthis two indexes with complications (p=0.00). When comparing these two indexes, the multiple regression analysis did not show any significant difference with the type of complication, although there was a significant difference with serum albumin levels and the type of surgery. Conclusion: in this study the a NPI and NRI behaved similarly with the majority of variables under study. En 1999 se adaptó la formula de Mullen y Buzby suprimiendo las pruebas de hipersensibilidad cutánea removiendo el factor alfa con coeficientes similares a la fórmula original, obteniéndose una nueva fórmula denominada índice de Pronóstico Nutricional adaptado (INPa). Objetivo: Determinar el comportamiento de las fórmulas IPNa e IRN, con complicaciones postquirúrgicas. Metodología: Se estudiaron prospectivamente 110 pacientes de cirugías electivas realizando una valoración prequirúrgica y postquirúrgica. Resultados: La edad promedio fue 50 años; 52% con sobrepeso y obesidad; 89,15% la albuminemia fue normal, 60% con déficit de transferrina. El 75,5% presentaron un IPNa con bajo riesgo, y 62,7% un IRN normal. Las cirugías predominantes fueron histerectomías y colecistectomías, 92% sin complicaciones. Se encontró una relación estadísticamente entre la clasificación de cada uno de los índices nutricionales con la presencia o ausencia de complicaciones (p= 0,001). Al comparar estos dos índices, la diferencia e