title: [Clinical characteristics, prognosis, and variability in the management of non-ST-segment elevation acute coronary syndromes. Data from the PEPA registry].
abstract: OBJECTIVE
  To assess the clinical characteristics and inter-hospital variability in the treatment and prognosis of patients with non-ST-segment elevation acute coronary syndromes.
  
  
  METHODS
  Data from the PEPA study, a prospective registry that enrolled 4,115 patients in 18 Spanish hospitals, were analyzed.
  
  
  RESULTS
  The mean age of the patients enrolled was 65 years, 33% were women, and 26% had diabetes. Large differences were observed in the clinical profile of patients admitted to different centers, especially relative the history of previous disease, prior coronary revascularization, and co-morbidity. Antiplatelet treatment was used in 93% of patients, heparin in 45%, beta-blockers in 42%, nitrates in 67%, and calcium antagonists in 46%. During hospitalization, exercise stress testing was performed in 37% of patients, coronary angiography in 32%, coronary angioplasty in 9%, and coronary surgery in 4%. Inter-hospital variability was minimal for the use of antiplatelet agents, wide for the use of heparin and beta-blockers, and huge for the use of revascularization procedures. Mortality and the incidence of death or myocardial infarction were 2.6% and 4.4% during hospitalization, and 4.6% and 8% at 3 months, with wide inter-hospital variability. These differences were not significant once adjusted for clinical characteristics and the treatment received at admission.
  
  
  CONCLUSIONS
  Patients with non-ST-segment elevation acute coronary syndromes represent an heterogeneous group with a high incidence of complications. Pharmacologic and, especially, invasive treatment varies widely in different hospitals. These results underline the importance of correct initial risk stratification and uniform treatment following the recommendations of clinical guidelines.
authors.affiliation: Servicio de Cardiología. Institut de Malalties Cardiovasculars. Hospital Clínic. Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS). Barcelona. España. xbosch@medicina.ub.es
authors.forename: Xavier
authors.initials: X
authors.lastname: Bosch
authors.forename: Esteban
authors.initials: E
authors.lastname: López De Sá
authors.forename: José
authors.initials: J
authors.lastname: López Sendón
authors.forename: Jaime
authors.initials: J
authors.lastname: Aboal
authors.forename: Faustino
authors.initials: F
authors.lastname: Miranda-Guardiola
authors.forename: Armando
authors.initials: A
authors.lastname: Bethencourt
authors.forename: Rafael
authors.initials: R
authors.lastname: Rubio
authors.forename: Raúl
authors.initials: R
authors.lastname: Moreno
authors.forename: Luis
authors.initials: L
authors.lastname: Martín Jadraque
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Roldán
authors.forename: Ramón
authors.initials: R
authors.lastname: Calviño
authors.forename: Vicente
authors.initials: V
authors.lastname: Valle
authors.forename: Félix
authors.initials: F
authors.lastname: Malpartida
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000368:Aged; D002121:Calcium Channel Blockers / Q000627:therapeutic use; D017023:Coronary Angiography; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D008297:Male; D017202:Myocardial Ischemia / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy*; D009566:Nitrates / Q000627:therapeutic use; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use; D011379:Prognosis; D011446:Prospective Studies; D012042:Registries
chemical_list: D000319:Adrenergic beta-Antagonists; D002121:Calcium Channel Blockers; D009566:Nitrates; D010975:Platelet Aggregation Inhibitors; D006493:Heparin
vernacular_title: Perfil clínico, pronóstico y variabilidad en el tratamiento del síndrome coronario agudo sin elevación del segmento ST. Datos del registro PEPA.