3.2 Change in PG across LVOT after TMVI (Table 4)
According to the change in LVOT
gradient, study patients were classified into 2 groups; patients with
significant increase in LVOT gradient defined as ΔPG ≥10 mm Hg
[n = 10, ΔPG: 22.2 (13.3-27.1)
mm Hg] and those without increase in LVOT gradient defined as ΔPG
<10 mm Hg [n = 33, ΔPG: 1.7 (0-4.4) mm Hg]. At baseline,
the two groups were similar in age, sex, heart rate, and systolic blood
pressure.
Device
size were not associated with increase in LVOT gradient. Compared to
patients without increase in LVOT gradient, patients with increase in
LVOT gradient had smaller LV size and AM angle and greater LVEF at
pre-procedure, and these differences were also observed at
post-procedure.