Estudio para estimar la magnitud y asociación entre los trastornos de la lactancia y la pérdida de peso neonatal superior a la fisiológica en neonatos en el Área de Alojamiento Conjunto de un Servicio de Neonatología del Hospital Nacional Guillermo Almenara Irigoyen, de la Seguridad Social en Lima, Perú. Se realizó un estudio de tipo transversal analítico durante los meses de Febrero a Abril del 2014. En el análisis ajustado, el dolor en el pezón y la posición inadecuada de la boca estuvieron asociados a una mayor pérdida de peso excesiva.

INTRODUCTION: during the first days of life the mother is the main source of nutrients for the newborn. However, breastfeeding difficulties are common and may generate excessive neonatal weight loss. OBJECTIVE: estimate the magnitude and association between breastfeeding problems and excessive neonatal weight loss beyond the physiological norm in the neonatology ward in a social security hospital in Lima, Peru. METHODS: we conducted a cross sectional analysis of the recorded neonatal weight in a routine evaluation (between 24 and 72 hours of life) and compared it against birth weight. Excessive weight loss was defined as a difference greater than or equal to 7 %. Breastfeeding problems (defined as problems with breastfeeding initiation, mouth position, breastfeeding duration, breastfeeding frequency, too much clothing, nipple pain and C form) were investigated using a survey and visual v...