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Acute Coronary Syndromes. Henry Z. Pitzele, MD, FACEP Deputy Chief, Section of Emergency Medicine Jesse Brown VA Medical Center, Chicago, IL. Overview. Why? Pathophysiology Treatment. Definition. Acute Myocardial Infarction Troponin Symptoms Q or STD PCI Unstable Angina
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Acute Coronary Syndromes Henry Z. Pitzele, MD, FACEP Deputy Chief, Section of Emergency Medicine Jesse Brown VA Medical Center, Chicago, IL
Overview • Why? • Pathophysiology • Treatment
Definition • Acute Myocardial Infarction • Troponin • Symptoms • Q or STD • PCI • Unstable Angina • Ischemic symptoms • Different from Previous
Significance • 5 Million per year • 1-2 percent sent home • Highest medical malpractice payouts
Pathophysiology • Ischemia • Infarction • Time is tissue • Window of opportunity
Pathophysiology • Ischemia • Infarction • Time is tissue • Window of opportunity
Pathophysiology • Ischemia • Infarction • Time is tissue • Window of opportunity
Pathophysiology • Ischemia • Infarction • Time is tissue • Window of opportunity
Pathophysiology • Ischemia • Infarction • Time is tissue • Window of opportunity
Treatment • Open them up • Keep them open • Maximize oxygen delivery to myocardium
Treatment: Reperfusion • PTCA • Thrombolysis
Treatment: Oxygen Delivery • Oxygen • Morphine • NTG • b Blockade
Treatment: Oxygen Delivery • Oxygen • Morphine • NTG • b Blockade
Nitro • 1 tab q5 min • Fail IV @ 10 mcg/min • Contraindications: • Systolic < 90 • Sildenafil in past 24h
Nitro: uh-oh! • 120/90 -------------> 8/2
Treatment: Oxygen Delivery • Oxygen • Morphine • NTG • b Blockade
beta • What drug? • What route?
beta • What drug? • It truly does not matter
beta • What drug? • It truly does not matter • Metoprolol is mentioned quite fondly, though
beta • What route? • a-ha: • Class I: Oral beta blocker therapy should be initiated within the first 24h for patients who do not have contraindications • Class II: It is reasonable to administer IV BB at the time of presentation for hypertension to UA/NSTEMI patients who do not have contraindications
beta • a-ha: • Class III: It may be harmful to administer IV BB to UA/NSTEMI patients who have contraindications to beta blockade
beta • Oral beta blockade is recommended.
Treatment: Oxygen Delivery • Oxygen: yes! • Morphine: probably… • NTG: watch pressure and RVI • b Blockade: oral unless you’ve got a good reason
Treatment: Antithrombosis • ASA: dosage • Heparin/LMWH • GpIIb/IIIa inhibitors • Clopidogrel
Aspirin • Potent irreversible antiplatelet • The most important intervention • Fifty. Percent. Mortality. Reduction.