title: Do overweight patients have a better five years prognosis after an acute myocardial infarction treated with coronary intervention?
abstract: BACKGROUND
  Obesity and overweight alone may confer a survival benefit after myocardial infarction, independent of age, medical care or therapy.
  
  
  OBJECTIVE
  To evaluate the impact of body mass index (BMI) on long-term mortality in ST-segment elevation acute myocardial infarction (STEMI) patients treated by primary angioplasty (PCI).
  
  
  METHODS
  We prospectively studied a homogenous group of 131 patients who had suffered STEMI, and subsequently exhibited a TIMI 3 flow after primary PCI. The patients (41 women, 90 men, mean age 58.3 ± 10.8 years) were analysed in two groups: Group 1 - 30 (23%) patients with BMI 〈 25 kg/m(2) and Group 2 - 101 (77%) patients with BMI ≥ 25 kg/m(2).
  
  
  RESULTS
  Altogether, 19 (14.5%) patients died during the five-year follow-up period - nine out of 30 (30%) were patients with BMI 〈 25 kg/m(2), and ten out of 101 (10%) were patients with BMI ≥ 25 kg/m(2) (p 〈 0.001). Individuals with BMI ≥ 25 kg/m(2) had lower five-year mortality, and this was independent of other potentially confounding variables. Area under the receiver-operating characteristic (ROC) curves for death with respect to weight on ROC analysis was significantly different than for a random model (p 〈 0.05). There were no significant differences in 30-day mortality and one-year mortality (p = 0.6517 and p = 0.3573, respectively).
  
  
  CONCLUSIONS
  Patients after primary angioplasty for STEMI with BMI 〈 25 kg/m(2) and patients with BMI ≥ 25 kg/m(2) have no difference in 30-day or one-year mortality, but individuals with BMI ≥ 25 kg/m(2) have a better five year prognosis, and this is independent of other potentially confounding variables.
authors: Department of Cardiology, Medical University in Bialystok, Poland. walkaz@poczta.fm
authors: Anna
authors: A
authors: Tomaszuk-Kazberuk
authors: Marcin
authors: M
authors: Kożuch
authors: Jolanta
authors: J
authors: Małyszko
authors: Hanna
authors: H
authors: Bachórzewska-Gajewska
authors: Urszula
authors: U
authors: Kosacka
authors: Sławomir
authors: S
authors: Dobrzycki
authors: Włodzimierz J
authors: WJ
authors: Musiał
mesh_terms: D015906:Angioplasty, Balloon, Coronary; D015897:Comorbidity; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000401:mortality* / Q000628:therapy*; D009765:Obesity / Q000453:epidemiology; D050177:Overweight / Q000453:epidemiology*; D011379:Prognosis; D012372:ROC Curve; D011859:Radiography; D012307:Risk Factors; D015996:Survival Rate; D016896:Treatment Outcome