title: Prognostic value of normal exercise Tc-99m Sestamibi myocardial perfusion imaging in Karachi, Pakistan.
abstract: OBJECTIVE
  To ascertain the hard event rate in local population with normal myocardial perfusion.
  
  
  METHODS
  The study, which was conducted from August 2006 to January 2007, included 300 patients with normal exercise myocardial perfusion scan (MPS). Patients were categorized according to their pre-test probabilities for CAD. Patients with low pre-test probability for CAD were 136 and ranked in group A, while group B constituted 164 patients who had intermediate to high pre-test probability.
  
  
  RESULTS
  During a follow-up of mean duration of 27 +/- 3 months, an overall hard cardiac event rate of 1.02% was noted. However, a statistically non-significant difference between the survival rates of low and high pre-test probability groups was also observed.
  
  
  CONCLUSIONS
  The study demonstrated good prognosis for patients with normal exercise myocardial perfusion scan.
authors: Atomic Energy Medical Centre (AEMC), Jinnah Post Graduate Medical Centre (JPMC), Karachi.
authors: Hasan
authors: H
authors: Raza
authors: Sumaira
authors: S
authors: Mushtaq
authors: Shahid
authors: S
authors: Kamal
mesh_terms: D000328:Adult; D015331:Cohort Studies; D003324:Coronary Artery Disease / Q000175:diagnosis*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D055414:Myocardial Perfusion Imaging; D010154:Pakistan; D011237:Predictive Value of Tests; D011379:Prognosis; D019275:Radiopharmaceuticals; D017256:Technetium Tc 99m Sestamibi
chemical_list: D019275:Radiopharmaceuticals; D017256:Technetium Tc 99m Sestamibi