The influence of occult right ventricular infarction on enzymatically estimated infarct size, hemodynamics and prognosis.
Why the study?
Does inferior transmural left ventricular infarction have a different prognosis, hemodynamics, and enzymatically estimated infarct size compared to anterior infarction in patients with transmural MI?
Population
249 patients with transmural anterior or inferior left ventricular infarction
Comparison
Inferior transmural left ventricular infarction vs Anterior transmural left ventricular infarction
Design
Cohort
Follow-up
average 20.7 months
Authors
Discussion
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Member takes
Implication
Anterior MI was associated with higher mortality than inferior despite equivalent enzymatic size; leaves open whether covert RV infarction explains the difference.
Structured PICO
Does inferior transmural left ventricular infarction have a different prognosis, hemodynamics, and enzymatically estimated infarct size compared to anterior infarction in patients with transmural MI?
P
Population
249 patients with transmural anterior or inferior left ventricular infarction
I
Intervention
Inferior transmural left ventricular infarction (frequently associated with occult right ventricular infarction)
C
Comparator
Anterior transmural left ventricular infarction
O
Outcome
Enzymatically estimated infarct size, hemodynamics (RVEDP/PAOP ratio), and mortality (early and up to 2 years)hard clinical
Covert right ventricular infarction frequently accompanies inferior MI and contributes to enzymatic infarct size, yet inferior MI is associated with better short- and long-term survival compared to anterior MI of equivalent enzymatic size.
Cite This Study
Strauss et al. (1980) studied this question.