Revista chilena de nutrición
versión On-line ISSN 0717-7518
RUEDA P, Elsy Victoria; YEPES H, Hernando; STEFANY MORA V, Camila y BOTELLO Q, Greis Ailin. BEHAVIOR OF ADAPTED NUTRITIONAL PROGNOSTIC ÍNDEX (NPIa) FORMULAS AND THE NUTRITIONAL RISK INDEX (NRI) IN ELECTIVE SURGERY PATIENTS. Rev. chil. nutr. [online]. 2009, vol.36, n.1, pp. 75-88. ISSN 0717-7518. doi: 10.4067/S0717-75182009000100009.
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.
Palabras clave : Nutritional Prognostic index; post-operational complications; Buzby method; body mass index; nutritional risk index.