Comparison of the anastomotic effects of combined-type and whole-type magnetic rings for gastrointestinal anastomosis in beagles

Table 1 The results of the three experimental groups

Group	n	Operation time, minutes	The time to magnets release, days	The burst pressure of anastomosis, mmHg	Circumference of the anastomosis, mm
DSAMAR group	1	5	9	> 300	65.2
	2	4.5	7	> 300	59.5
	3	6	12	> 300	69.0
	4	3	14	> 300	58.8
	5	5.5	8	> 300	63.2
	6	5	9	> 300	66.4
CMR group	7	4.5	7	> 300	58.4
	8	5	11	> 300	62.5
	9	3.5	15	> 300	71.3
	10	5	10	> 300	65.0
	11	5.5	12	> 300	62.4
	12	4	8	> 300	64.8
Hand-sewn group	13	15	NA	> 300	68.4
	14	13	NA	> 300	64.5
	15	16	NA	NA1	NA1
	16	14.5	NA	> 300	67.4
	17	17	NA	> 300	65.5
	18	16	NA	> 300	59.4

¹Dog numbered 15 died due to anastomotic leakage.

DSAMAR: Deformable self-assembling magnetic anastomosis ring; CMR: Conventional magnetic ring; NA: Not available.