Minimally invasive apical cannulation and cannula design for short-term mechanical circulatory support devices

Table 1 Important measures regarding the length of the arterial tube of the different cannula sizes

	Group 1	Group 2	Group 3	p value
Patients number	5	7	12
AWT (mm) min–max	2.2–5	1.5–4.3	2.3–4.2	0.205
Mean ± SD	3.82 ± 1.19	2.84 ± 1.06	3.24 ± 0.65
AAV (mm) min–max	91.2–101.66	101.66–112.12	112.12–122.6	< 0.0001
Mean ± SD	97.52 ± 4.35	105.86 ± 3.52	116.82 ± 3.19
LM (mm) min–max	10.3–14.5	10.7–14.6	10.7–15.8	0.649
Mean ± SD	12.84 ± 1.73	12.84 ± 1.39	13.47 ± 1.71
RCA (mm) min–max	12–18.1	14.6–17.7	10.3–21	0.466
Mean ± SD	14.32 ± 2.48	16.04 ± 1.26	15.88 ± 3.08
Sum of the max. values (mm)	124.76	134.12	147.8
Sum after the 5 mm correction (mm)	129.76	139.12	152.8

AWT apical wall thickness, AAV distance between the inner side of the apex and the aortic valve annulus, LM distance between the aortic valve annulus and the left main coronary artery opening, RCA distance between the aortic valve annulus and the right coronary opening, SD standard deviation; Continuous variables are reported as mean and standard deviation; p < 0.05 indicates statistical significance

ISSN: 1471-2261