DCM / transplant Flashcards
dp/dt definition
Index of myocardial contractility
Time takes for LV to produce pressure of 32 mmHg
Longer time = worse
dp/dt equation
= 32 / time in sec
Normal dp/dt
> 1200
Borderline dp/dt
1000-1200
Abnormal dp/dt
<1000
Relative wall thickness
2 x PWTd / LVIDd
Normal LV mass index women
<= 95
Normal LV mass index men
<= 115
RWT >0.42, normal LV mass index
Concentric remodeling
RWT <0.42, normal LV mass index
Normal
RWT > 0.42, high LV mass index
Concentric hypertrophy
RWT < 0.42, high LV mass index
Eccentric hypertrophy
Markers for poor prognosis
Pulsus alternans in LVOT PW DT < 115 Restrictive filling RV dysfunction, pHTN MR
Isolated Non-compaction of LV definition
Altered myocardial wall with thin compacted layer and thick non-compacted layer (prominent trabeculation)
Jenni criteria for LV non-compaction
Non-compacted to compacted 2:1, short axis, end systole
Color flow in recesses
Trabeculation meshwork typically in apex, inferolateral