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| ==[[Dilated Cardiomyopathy]]== | | ==Differential Diagnosis== |
| ===Background===
| | *[[Dilated Cardiomyopathy]] |
| *Idiopathic form accounts for 25% of CHF
| | *[[Hypertrophic Cardiomyopathy]] |
| ===Diagnosis===
| | *[[Restrictive Cardiomyopathy]] |
| *CHF symptoms
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| *CXR
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| **Cardiomegaly, pulm venous htn
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| *ECG | |
| **LV hypertrophy, poor R wave progression
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| ===Treatment===
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| *Similar to CHF exacerbation
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| *Ensure exacerbation not due to ischemia
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| ==[[Hypertrophic Cardiomyopathy]]==
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| ===Background===
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| *"HOCM"
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| *Abnormal LV diastolic function due to decr compliance
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| ===Diagnosis===
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| *Exertional dyspnea, chest pain, syncope
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| *Systolic murmur that increases w/ valsalva
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| *ECG
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| **LV hypertrophy, deep Qs in 1, avL, V5-6 (daggers of death)
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| ===Treatment===
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| *If decompensated presents as hypotensive CHF
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| **Preserve preload
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| ***Careful hydration
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| ***Avoid high airway pressure if intubate
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| **Limit tachycardia
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| ***Beta blockers
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| **Avoid vasodilators (no nitrates)
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| **Maintain sinus rythm (i.e. cardiovert A. fib)
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| **Increase afterload (hypotensive only)
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| ***Phenylephrine | |
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| ==[[Restrictive Cardiomyopathy]]==
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| ===Background===
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| *Must distinguish from constrictive pericarditis
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| ===Diagnosis===
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| *Consider if CHF but no e/o cardiomegaly or systolic dysfunction
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| ===Treatment===
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| *Symptom directed (diuretics and ACEI)
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| ==See Also==
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| *[[Peripartum Cardiomyopathy]] | | *[[Peripartum Cardiomyopathy]] |
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