Acute coronary syndrome (main): Difference between revisions
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{Template:Chest Pain DDX}} | {{Template:Chest Pain DDX}} | ||
===Elevated Troponin=== | |||
*[[Troponin (DDx)]] | |||
== Diagnosis == | == Diagnosis == | ||
Revision as of 17:14, 7 May 2014
Background
ACS is three diseases involving the coronary arteries:
- ST-Elevation Myocardial Infarction (STEMI) (30%)
- Non ST-Elevation Myocardial Infarction (NSTEMI) (25%)
- Unstable Angina (38%)
Differential Diagnosis
Chest pain
Critical
- Acute coronary syndromes (ACS)
- Aortic dissection
- Cardiac tamponade
- Coronary artery dissection
- Esophageal perforation (Boerhhaave's syndrome)
- Pulmonary embolism
- Tension pneumothorax
Emergent
- Cholecystitis
- Cocaine-associated chest pain
- Mediastinitis
- Myocardial rupture
- Myocarditis
- Pancreatitis
- Pericarditis
- Pneumothorax
Nonemergent
- Aortic stenosis
- Arthritis
- Asthma exacerbation
- Biliary colic
- Costochondritis
- Esophageal spasm
- Gastroesophageal reflux disease
- Herpes zoster / Postherpetic Neuralgia
- Hypertrophic cardiomyopathy
- Hyperventilation
- Mitral valve prolapse
- Panic attack
- Peptic ulcer disease
- Pleuritis
- Pneumomediastinum
- Pneumonia
- Rib fracture
- Stable angina
- Thoracic outlet syndrome
- Valvular heart disease
- Muscle sprain
- Psychologic / Somatic Chest Pain
- Spinal Root Compression
- Tumor
Elevated Troponin
Diagnosis
Clinical factors that increase likelihood of ACS/AMI:
- Chest pain radiating both arms >R arm >L arm
- Chest pain associated with diaphoresis
- Chest pain associated with N/V
- Chest pain with exertion
Clinical factors that decrease likelihood of ACS/AMI:
- Pleuritic chest pain
- Positional chest pain
- Sharp, stabbing chest pain
- Chest pain reproducible with palpation
- ECG (Diagnosis)
- ECG is normal in 8% of all confirmed MI's
- In LBBB see Sgarbossa's Criteria
- Cardiac Enzymes
- ACS - Risk Stratification
- ACS - Anatomical Correlation
Treatment
Intensity of Rx should be based on likelihood that sx are due to acute coronary thombosis
- ST-Elevation Myocardial Infarction (STEMI)
- Non ST-Elevation Myocardial Infarction (NSTEMI)
- Unstable Angina
Disposition
- Admit all ACS pts