title: [Prognostic factors in hypertrophic pyloric stenosis].
abstract: BACKGROUND
  Although the surgical treatment of hypertrophic pyloric stenosis is well established, its management and main complication after surgery, postoperative vomits, are subject to constant revisions. In this study, we sought a prognostic factor that indicates the occurrence of this complication.
  
  
  METHODS
  We analyzed different parameters listed in the medical histories of 169 patients treated at a tertiary hospital between 2000 and 2009, both inclusive, ruling out those who suffered some type of complication (n = 17) and those who followed a different pattern of reintroduction of feeding (n = 43).
  
  
  RESULTS
  The decrease in the time interval between surgery and the first shot does not influence the outcome of patients. However, we found a negative correlation between the chlorine level in blood measured by the number of postoperative vomits. The time required to reach a correct tolerance, influenced by the degree of metabolic disorder, does influence both the number of vomits and the time required to achieve a proper tolerance. Other parameters analyzed, such as surgical time and ultrasound measurements of the pyloric olive, do not seem to influence the postoperative course of patients.
  
  
  CONCLUSIONS
  Just the degree of metabolic disturbance and blood levels of chlorine seem to influence postoperative outcome, detected by the time required to reach a correct tolerance and the number of postoperative vomits.
authors: Servicio de Cirugía Pediátrica, Hospital Universitario Central de Asturias. nataliz_v@yahoo.es
authors: N
authors: N
authors: Vega Mata
authors: V
authors: V
authors: Alvarez Muñoz
authors: G D
authors: GD
authors: Coto Cotallo
authors: L
authors: L
authors: Raposo Rodríguez
authors: D
authors: D
authors: Rodríguez Villar
authors: P
authors: P
authors: Martínez Camblor
mesh_terms: D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D020250:Postoperative Nausea and Vomiting / Q000453:epidemiology*; D011379:Prognosis; D046248:Pyloric Stenosis, Hypertrophic / Q000601:surgery*; D012189:Retrospective Studies