[Maternal mortality. A challenge of the new millennium].

Maternal mortality is a principal concern of the contemporary society because of consequence to generate since the most cases to be about young woman and healthy, whose death be able to avoid. This study analyzed the cases registered in Aguascalientes delegation of IMSS during ten years with purpose to find strategy for to salve. The case fatality rate was average of 26.1 x 100,000 alive births. The principal causes was the obstetric hemorrhages; preeclampsia and lung thrombosis. The greater percentage was in woman aged between 25-39 years and multiparous. Most of 50% doing appropriate prenatal control. A greater percentage was pregnancy of term with 77.4 a live births and 59% performed cesarean sections. 93% was through the puerperium. Only 20% was to classify as treatment inappropriate and inopportune and 74% was maternal mortality foreseeable. Some type responsibility existed in 38.7%.