STEMI Definition In the absence of LBBB or LVH New ST elevation at the J point in at least 2...
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Transcript of STEMI Definition In the absence of LBBB or LVH New ST elevation at the J point in at least 2...
“STEMI Guidelines for the ED Physician and ECG
Review”
December 2, 2014
Gagan D. Singh M.D.
Division of Cardiovascular MedicineUC Davis Medical Center
Sacramento CA
STEMI Definition
STEMI Definition
In the absence of LBBB or LVH New ST elevation at the J point in at
least 2 contiguous leads of: 2 mm (0.2 mV) in men or 1.5 mm (0.15
mV) in women in leads V2–V3 and/or of 1 mm (0.1 mV) in other contiguous
chest leads or the limb leads ST depression in 2 precordial leads (V1–
V4) may indicate transmural posterior injury
STEMI Definition
Caveats Most cases of LBBB at time of
presentation are “not known to be old” because of ECG is not available for comparison.
New or presumably new LBBB at presentation occurs infrequently Interfere with ST-elevation analysis, and Should not be considered diagnostic of
acute MI in isolation Baseline ECG abnormalities other than
LBBB (LVH, Brugadda, V paced) obscure STEMI assessment
Jain et al. Am J Cardiol 2011;107: 1111–1116
7
Hospitalizations in the U.S. Due to Acute Coronary Syndromes (ACS)
Acute Coronary Syndromes*
1.57 Million Hospital Admissions - ACS
UA/NSTEMI† STEMI
1.24 million Admissions per year
.33 million Admissions per year
Heart Disease and Stroke Statistics – 2007 Update. Circulation 2007; 115:69-171. *Primary and secondary diagnoses. †About 0.57 million
NSTEMI and 0.67 million UA.
STEMI Epidemiology
STEMI Facts
In hospital and 1 year mortality continue to decline Reperfusion therapy Earlier recognition “Time is myocardium”
Target Areas For Improvement Women, Non-whites, Diabetics, Elderly,
CKD/ESRD
STEMI Timeline
STEMI Guidelines – Cath Activation
STEMI Guidelines
Platelets Role in Thrombosis
Reproduced with permission from Cannon CP. Atherothrombosis slide compendium. Available at: www.theheart.org.
Aggregation31
Activation2
Adhesion
Pathways to Clot Formation
White HD. AM J Cardiol 1997; 80:2B-10BSchafer A. J Clin Invest 1986; 78:73-79DeJong MJ, et al. Critical Care Nursing Clin of N Am 1999; 11:355-371
STEMI Guidelines - Fibrinolytic
STEMI Guidelines - Fibrinolytic
STEMI Guidelines - Fibrinolytic
STEMI Guidelines - Fibrinolytic
STEMI Guidelines - Hypothermia
STEMI Guidelines - Anticoagulation
ECG Review
An Electrical Beat
Many faces of normal ST segments
Pathologic ST segments
ECG
ECG
ECG
ECG
ECG
ECG
ECG
ECG
THANK YOU
University of California Davis Medical Center