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Figure 2 Individual diastolic P-V relations of the poor collateral flow group. Four patients showed a downward shift of the diastolic P-V relation (SY, LAD; SN, LAD; MS, LAD; and HK, RCA [patient initials are followed by target lesion]) during BCO, while the remaining four patients demonstrated a rightward shift along a similar diastolic P-V relation. After balloon deflation all but one patient (MS, LAD) had a parallel upward shift of the diastolic P-V relation. RCA = right coronary artery; other abbreviations as in Figure 1.
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