Cardiology Facts 52


  • In STEMI + coma, primary PCI & hypothermia have mortality benefit 
  • Claudication symptoms are present in only 10% to 30% of patients with PAD 
  • 50% to 70% of smokers continue to smoke after ACS 
  • Elective noncardiac surgery, multiple coronary risk factors, transient T wave inversion, troponin rise that is stable over time - Pharmacologic MPI 
  • Macrophages are principal cells of fatty streak 
  • NSTEMI, TIMI risk score, ≥65 years of age; three or more risk factors for coronary artery disease; prior coronary stenosis ≥50%; ST deviation on ECG; two or more anginal events in prior 24 hours; use of aspirin in prior 7 days; and elevated cardiac biomarkers 
  • Atorvastatin is most potent statin for decreasing LDL, then bile acid sequestrants, then fibrates 
  • AR shows increased stroke volume in compensated state 
  • Older Black man, dizziness, hypotension, carpal tunnel surgery, elevated JVP, bilateral crackles - cardiac amyloidosis, ECGs low QRS voltage, pseudoinfarct pattern 
  • Class III for coronary angiography in SIHD include initial testing to assess risk in patients not candidates for revascularization because of comorbidities, low-risk on noninvasive testing & preserved LV function, low risk on clinical criteria and have not undergone noninvasive risk testing, asymptomatic patients with no evidence of ischemia on noninvasive testing