Renal Dysfunction is a Risk Factor of Death after Gastric Endoscopic Submucosal Dissection in Elderly Patients Aged ≥80 Years

Table 3

Curative resection rates and complications related to endoscopic submucosal dissection.

	Elderly group (108 patients) (128 lesions)	Nonelderly group (425 patients) (504 lesions)	value
En block resection, n (%)	125 (97.7)	482 (95.6)	n.s.
Curative resection, n (%)	110 (85.9)	432 (85.7)	n.s.
Noncurative resection (eCuraC1/eCuraC2), n (%)	18 (3/15)	72 (14/58)	n.s.
Patients who underwent additional surgical resection, n (%)	2 (1.9)	24 (5.6)	n.s.
Complications, n (%)
Postoperative bleeding	7 (6.5)	18 (4.2)	n.s.
Perforation	0 (0)	1 (0.2)	n.s.
Aspiration pneumonia	4 (3.7)	11 (2.6)	n.s.
Delirium	1 (0.9)	0 (0)	n.s.

ESD, endoscopic submucosal dissection; eCuraC1, noncurative resection because horizontal margin was positive according to the Japanese gastric cancer treatment guidelines; eCuraC2, noncurative resection due to the factor other than eCuraC1 according to the Japanese gastric cancer treatment guidelines. Fisher’s exact test; chi-square test.