Fedora-type magnetic compression anastomosis device for intestinal anastomosis

Table 1 Results of traditional nummular magnetic compression anastomosis devices with different sizes

	Group 1.1	Group 1.2	Group 1.3	Group 1.4	P value
Survival rate	93.3% (14/15)	100% (15/15)	73.3% (11/15)	73.3 (11/15)	0.083
Discharge time (d)	3 (IQR 3-4)	3 (IQR 3-4)	2 (IQR 1-4)	2.5 (IQR 2-3)	0.002
Adhesion score
0	92.9% (13/14)	86.7% (13/15)	27.3% (3/11)	27.3% (3/11)	< 0.001
1	7.1% (1/14)	13.3% (2/15)	27.3% (3/11)	9.1 (1/11)
2	0 (0/14)	0 (0/15)	9.1% (1/11)	27.3% (3/11)
3	0 (0/14)	0 (0/15)	18.2% (2/11)	18.2% (2/11)
4	0 (0/14)	0 (0/15)	18.2% (2/11)	18.2% (2/11)
Circumference of anastomotic stomas (mm)
30 d	2.47 ± 0.18	8.84 ± 0.31	13.54 ± 0.31	15.98 ± 0.73	< 0.001
90 d	1.20 ± 0.18	5.90 ± 0.27	13.73 ± 0.49	16.43 ± 0.30	< 0.001
180 d	0.35 ± 0.19	2.07 ± 0.37	13.24 ± 0.68	16.33 ± 0.37	< 0.001
Bursting pressure (mmHg)
30 d	247.64 ± 10.78	245.18 ± 7.77	242.90 ± 11.56	205.725 ± 8.06	0.032
90 d	264.55 ± 7.87	269.46 ± 9.30	261.47 ± 9.72	256.03 ± 15.63	0.830
180 d	263.32 ± 10.85	258.62 ± 10.19	261.08 ± 12.06	265.05 ± 11.26	0.978

Table 2 Results of fedora-type magnetic compression anastomosis devices with different designs

	Group 2.1	Group 2.2	Group 2.3	P value
Survival rate	93.3% (14/15)	100% (15/15)	93.3% (14/15)	0.434
Discharge time (d)	3 (IQR 3-3.25)	4 (IQR 2-5)	4 (IQR 3-5)	0.175
Adhesion score
0	85.7% (12/14)	86.7% (13/15)	85.7% (12/14)	0.985
1	7.1% (1/14)	13.3% (2/15)	7.1% (1/14)
2	7.1% (1/14)	0 (0/15)	0 (0/14)
3	0 (0/14)	0 (0/15)	7.1% (1/14)
4	0 (0/14)	0 (0/15)	0 (0/14)
Circumference of anastomotic stomas (mm)
30 d	8.04 ± 0.62	13.10 ± 0.43	15.85 ± 0.47	< 0.001
90 d	5.36 ± 0.32	13.56 ± 0.58	16.20 ± 0.52	< 0.001
180 d	2.45 ± 0.67	13.57 ± 0.47	16.42 ± 0.31	< 0.001
Bursting pressure (mmHg)
30 d	242.80 ± 8.90	239.32 ± 9.18	250.88 ± 7.71	0.634
90 d	259.14 ± 7.42	267.00 ± 9.38	261.14 ± 12.01	0.842
180 d	258.35 ± 14.46	260.82 ± 11.78	265.85 ± 14.07	0.972