title: [Cardiorenal syndrome type 1 in the intensive coronary care unit of the Hospital Nacional Arzobispo Loayza].
abstract: OBJECTIVE
  This study sought to evaluate the incidence of cardiorenal syndrome (CRS) type 1 in a coronary care unit and its association with hospital mortality within 30 days of admission, as well as other epidemiological characteristics.
  
  
  METHODS
  The medical records of all the patients who were hospitalized with the diagnosis of acute heart failure in a 4-year period were reviewed. CRS type 1 was characterized by the presence of acute heart failure and an elevation of serum creatinine ≥0.3mg/dL in comparison to the baseline creatinine calculated by the MDRD75 equation and/or the elevation of ≥50% of the admission serum creatinine within a 48 h period.
  
  
  RESULTS
  The incidence of CRS type 1 was 27.87%, 95% CI: 20.13-36.71 (34 of 122). There was a higher frequency of CRS type 1 in those patients who were admitted with the diagnosis of cardiogenic shock (adjusted RR 2.02, 95% CI: 1.20-3.93, p=0.0378) and in those with higher hemoglobin levels (p=0.0412). The CRS type 1 was associated with an increase of 30-day mortality (HR: 4.11, 95% CI: 1.20-14.09, p=0.0244).
  
  
  CONCLUSIONS
  The incidence of CRS type 1 in the coronary care unit found in our study is similar to those found in foreign studies. The history of stroke and the higher values of hemoglobin were associated with a higher incidence of cardiorenal syndrome type 1. Patients with CRS type 1 had a higher hospital mortality within 30 days of admission.
authors.affiliation: Servicio de cardiología, Hospital Nacional Arzobispo Loayza, Lima, Perú. Electronic address: paulmprezac@hotmail.com.
authors.forename: Paul M
authors.initials: PM
authors.lastname: Preza
authors.affiliation: Servicio de nefrología, Hospital Nacional Arzobispo Loayza, Lima, Perú
authors.forename: Abdías
authors.initials: A
authors.lastname: Hurtado
authors.affiliation: Servicio de cardiología, Hospital Nacional Arzobispo Loayza, Lima, Perú
authors.forename: Victoria
authors.initials: V
authors.lastname: Armas
authors.affiliation: Facultad de salud pública y administración, Universidad Peruana Cayetano Heredia, Lima, Perú
authors.forename: César P
authors.initials: CP
authors.lastname: Cárcamo
mesh_terms: D000368:Aged; D059347:Cardio-Renal Syndrome / Q000145:classification / Q000453:epidemiology* / Q000628:therapy; D015331:Cohort Studies; D003325:Coronary Care Units; D005260:Female; D017052:Hospital Mortality; D006760:Hospitalization; D006801:Humans; D015994:Incidence; D008297:Male; D008800:Mexico; D008875:Middle Aged; D011996:Records; D012189:Retrospective Studies; D011795:Surveys and Questionnaires
keywords: Cardio-renal syndrome; Heart failure; Hospital mortality; Insuficiencia cardíaca; Insuficiencia renal; Mortalidad hospitalaria; Peru; Perú; Renal insufficiency; Síndrome cardiorrenal