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. 2021 Jan 29;11(1):e041398. doi: 10.1136/bmjopen-2020-041398

Table 5.

Outcomes during index hospital stay for valve size and type, and for valve function and regurgitation to 6 weeks by group

Valve
characteristics
Mini-
sternotomy
group (n=135)
Conventional
sternotomy
group (n=135)
Mean
difference
(95% CI; p value)
Valve size: mm
 19–21 mm n (%) 40 (29.6) 38 (28.1)
 23–25 mm n (%) 84 (62.2) 80 (59.3)
 27–29 mm n (%) 11 (8.2) 17 (12.6)
 Mean±SD 23.1±2.1 23.6±2.5
 Range (min–max) 19.0–29.0 19.0–31.0
 Valve type: n (%)
 Biological and sutureless 4 (3.0) 3 (2.2)
 Biological prosthesis 96 (71.1) 98 (72.6)
 Mechanical prosthesis 35 (25.9) 34 (25.2)
Valve function
Mean gradient
Baseline
 n 111* 110*
 Mean±SD 47.9±15.7 47.7±20.2 0.2 (−4.6 to 5.0)
 Min–max 10–93 8–110
6 weeks
 n 120* 126*
 Mean±SD 15.7±5.5 15.7±5.8 0.5†(−1.0 to 2.1)
 Min–max 6–33 4–34
Peak gradient
Baseline
 n 125* 124*
 Mean±SD 82.3±25.9 77.1±29.1 5.2 (−1.7 to 2.3)
 Min–max 16–152 8–173
6 weeks
 n 130* 130*
 Mean±SD 29.9±10.5 29.7±10.8 −0.3† (−2.9 to 2.3)
 Min–max 12–62 11–61
Aortic valve regurgitation
Nil/trivial
 n/n (%) 109/134* (81.3) 109/130* (83.8) 218/264 (82.6)
Mild
 n/n (%) 19/134* (14.2) 18/130* (13.9) 37/264 (14.0)
Moderate
 n/n (%) 5/134* (3.7) 2/130* (1.5) 7/264 (2.7)
Severe
 n/n (%) 1/134* (0.8) 1/130* (0.8) 2/264 (0.8)

*It was not possible to quantify valve function in all patients.

†After adjusting for randomisation factors and baseline data.