Table 2 Characteristics of older persons after PCI during the baseline and follow-up period.

From: The effects of CPET-guided cardiac rehabilitation on exercise tolerance in older persons with CHD after PCI

Characteristics

Baseline

Follow-up

P value

BMI (kg/m2)

25.1 ± 2.9

25.0 ± 2.8

0.726

Laboratory indicators

 Cr (μmol/L)

88.0 ± 11.5

87.4 ± 21.8

0.544

 LDL (mmol/L)

2.0 ± 0.6

1.4 ± 0.5

0.032

 Hb (g/L)

132.4 ± 16.5

145.1 ± 14.9

0.653

 NT-proBNP (pg/ml)

305.5 ± 19.4

225.6 ± 11.1

0.013

Echocardiography indicators

 LVEDD (mm)

47.1 ± 5.6

48.1 ± 3.7

0.565

 LVEF (%)

65.7 ± 8.3

66.8 ± 7.6

0.317

 Sm (cm/s)

9.3 ± 1.9

9.0 ± 1.5

0.191

 E/Em

6.9 ± 2.2

7.5 ± 2.3

0.028

 LAP (mmHg)

10.8 ± 2.8

10.1 ± 2.8

0.017

CPET indicators

 VO2@AT (ml/min/kg)

12.9 ± 3.7

13.8 ± 4.2

< 0.001

 HR@AT (bpm)

98 ± 13

97 ± 11

0.809

 VO2peak (ml/min/kg)

15.5 ± 3.8

17.3 ± 4.1

0.013

 Peak HR (bpm)

118 ± 17

122 ± 16

0.012

 Peak SBP (mmHg)

169 ± 24

171 ± 25

0.089

 VE/VCO2 slope

31.9 ± 5.1

30.9 ± 6.1

< 0.001

 OUES

1488.8 ± 395.2

1498.1 ± 328.1

0.453

 HRR

17 ± 7

19 ± 8

< 0.001

  1. PCI percutaneous coronary intervention, BMI body mass index, Cr creatinine, LDL low density lipoprotein, Hb hemoglobin, NT-proBNP N-terminal pro-brain natriuretic peptide, LVEDD left ventricular end-diastolic dimension, LVEF left ventricular ejection fraction, Sm systolic velocity of mitral annulus, E/Em the ratio of early diastolic transmitral flow velocity to early diastolic tissue velocity, LAP left atrium pressure, VO2@AT oxygen uptake at anaerobic threshold, HR@AT heart rate at anaerobic threshold, VO2peak peak oxygen uptake, Peak HR peak heart rate, Peak SBP peak systolic blood pressure, VE/VCO2 slope ventilation per carbon dioxide output slope, OUES oxygen uptake efficiency slope, HRR heart rate recovery.
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