Clinical comparative analysis of 3D printing-assisted extracorporeal pre-fenestration and Castor integrated branch stent techniques in treating type B aortic dissections with inadequate proximal landing zones

Table 1 Preoperative detailed data and complications of patients

Clinical data	3D-Printing group (n = 44)	Castor stent group (n = 40)	X²	P
Male	31	29	0.043	0.839
Complicated hypertension	27	24	0.016	0.898
Persistent pain	19	17	0.004	0.950
Cardiac insufficiency	16	15	0.012	0.914
Coronary heart disease	13	8	1.018	0.313
Diabetes mellitus	9	7	0.119	0.731
Abdominal aortic atherosclerosis	6	8	0.611	0.434
Combined visceral malperfusion	7	7	0.038	0.845
Combined aortic dilatation	3	5	0.264	0.607

ISSN: 1471-2261