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Table 2 Functional assessments

From: Physiological benefits evaluated by quantitative flow ratio in patients with reduced left ventricular ejection fraction who underwent percutaneous coronary intervention

 

Reduced LVEF group

(n = 48)

Normal LVEF group

(n = 253)

P value

Pre-PCI QFR

0.67 ± 0.16

0.73 ± 0.15

0.004

Post-PCI QFR

0.96 ± 0.06

0.97 ± 0.06

0.239

Follow-up QFR

0.94 ± 0.10

0.96 ± 0.08

0.216

Increasing QFR*

0.27 ± 0.18

0.22 ± 0.15

0.043

Post-PCI MLD

3.75 (2.40)

3.40 (2.10)

0.225

Follow-up MLD

2.80 (1.90)

2.80 (1.80)

0.717

LLL

0.60 (1.85)

0.40 (1.70)

0.229

Pre-PCI LVEF, %

41.70 ± 6.21

65.95 ± 7.10

 < 0.001

Follow-up LVEF, %

47.39 ± 10.62

65.51 ± 7.36

 < 0.001

Increasing LVEF*, %

6.05 ± 9.45

 − 0.37 ± 8.11

 < 0.001

  1. Values are the mean ± standard deviation, median (interquartile range)
  2. LVEF, left ventricular ejection fraction; PCI, percutaneous coronary intervention; QFR, quantitative flow ratio. MLD, minimal lumen diameter; LLL, late lumen loss
  3. *Increasing QFR = Follow-up QFR – Pre-PCI QFR; Increasing LVEF = Follow-up LVEF – Pre-PCI LVEF
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BMC Cardiovascular Disorders

ISSN: 1471-2261

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