Effect of surgeon on transprosthetic gradients after aortic valve replacement with Freestyle® stentless bioprosthesis and its consequences: A follow-up study in 587 patients

Table 1 Predictors of 30-day- and 6-months-mortality and survival time. Apparently valve size is a risk factor in the first step of the analysis. However, after adjustment for gender, age, BSA, BMI and body size, valve size disappeared (p < 0.05)

	Models for
Preoperative risk factors	30-day mortality		6-months mortality		Survival time
	OR	95% CI	OR	95% CI	HR	95% CI
Myocardial decompensation	2.9	1.1–7.2
Diabetes mellitus			2.7	1.3–5.5	2.0	1.3–3.0
Atrial fibrillation			2.3	1.1–5.2	2.8	1.8–4.4
Peripheral vascular disease					2.2	1.2–4.0
Antithrombine III (%)	0.97	0.94–0.99	0.96	0.94–0.99
Urea concentration (mg/dl)			1.02	1.01–1.03	1.02	1.011.02
Valve size	p = 0.009		p = 0.05		p = 0.02
After Variable transformation:
Female and age > 74 years	4.0	1.4–11.0
BSA < 1.78 m²			3.0	1.51–6.07
Female and age > 80 years					1.8	1.03–2.94
BMI < 24 and body size < 165 cm					1.7	1.02–2.93
Valve size	p = 0.13		p = 0.47		p = 0.22

ISSN: 1749-8090