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Table 3 Microvascular and macrovascular parameters after 6 weeks

From: A randomised study of the impact of the SGLT2 inhibitor dapagliflozin on microvascular and macrovascular circulation

 

Baseline

Placebo

Dapagliflozin

p value placebo vs. dapagliflozin

Mean ± SD (change from baseline)

p value vs. baseline

Mean ± SD (change from baseline)

p value vs. baseline

Microvascular

Retinal capillary flow (AU)

324 ± 84

318 ± 87 (−6 ± 45)

0.334

308 ± 78 (−16 ± 53)

0.028

0.157

Retinal capillary flow after flicker, (AU)

351 ± 96

352 ± 101 (+2 ± 65)

0.838

344 ± 115 (−7 ± 84)

0.525

0.477

Outer arteriole diameter (µm)

109 ± 11

109 ± 12 (+1 ± 8)

0.599

109 ± 12 (+1 ± .9)

0.572

0.893

Arteriole lumen diameter (µm)

79.6 ± 7.6

79.0 ± 7.8 (-0.7 ± 6.1)

0.435

80.4 ± 7.8 (+0.7 ± 6.5)

0.410

0.074

Wall/lumen ratio

0.36 ± 0.1

0.39 ± 0.1 (+0.03 ± 0.1)

0.034

0.36 ± 0.1 (+0.01 ± 0.1)

0.524

0.086

Wall thickness (µm)

14.5 ± 3.4

15.1 ± 3.6 (+0.6 ± 3.1)

0.149

14.5 ± 3.3 (0.0 ± 3.1)

0.981

0.096

Wall cross section area (µm2)

4338 ± 1291

4531 ± 1373 (+194 ± 1121)

0.210

4378 ± 1331 (+41 ± 1176)

0.800

0.231

Macrovascular

Central systolic BP (mmHg)

121 ± 13

121 ± 13 (0 ± 11)

0.756

118 ± 11 (−3 ± 11)

0.035

0.084

Central diastolic BP (mmHg)

79 ± 8

77 ± 8 (−2 ± 7)

0.050

77 ± 7 (−2 ± 7)

0.020

0.951

Central pulse pressure (mmHg)

42.1 ± 11

43.6 ± 11 (+1.5 ± 8)

0.185

40.9 ± 11 (−1.1± 10)

0.405

0.050

Central heart rate (bpm)

63.9 ± 8.8

63.2 ± 7.5 (−0.7 ± 5.8)

0.398

62.3 ± 7.9 (−1.6 ± 4.5)

0.011

0.359

Augmentation pressure (mmHg)

12.8 ± 5.8

13.3 ± 6.4 (+0.4 ± 3.6)

0.392

12.9 ± 6.0 (+0.1 ± 4.0)

0.918

0.536

Augmentation index

29.3 ± 7.9

29.3 ± 8.3 (0.0 ± 5.1)

1.0

30.1 ± 8.4 (+0.9 ± 5.0)

0.213

0.372

Augmentation index @75a

24.0 ± 7.3

23.6 ± 8.1 (−0.4 ± 4.6)

0.556

24.1 ± 8.7 (+0.1 ± 4.6)

0.929

0.603

  1. N = 59
  2. AU arbitrary units, BP blood pressure
  3. a Normalised to a heart rate of 75 bpm