Table 37 Malignant esophageal disease (clinical characteristics)

	Operation (+)				EMR or ESD	Operation (−)	Total
	Cases	Hospital mortality
		~30 days	31–90 days	Total (including after 91 days mortality)
1. Esophageal cancer	6247	47 (0.8)	46 (0.7)	128 (2.0)	1851	2492	10,584
Location
(1) Cervical esophagus	258	0	1 (0.4)	3 (1.2)	76	178	512
(2) Thoracic esophagus	5041	45 (0.9)	39 (0.8)	112 (2.2)	1501	2133	8675
(3) Abdominal esophagus	644	2 (0.3)	3 (0.5)	7 (1.1)	100	117	861
(4) Multiple cancers	301	0	3 (1.0)	6 (2.0)	174	61	536
(5) Others/not described	3	0	0	0	0	3	0
Tumor depth
(A) Superficial cancer (T1)	1892	9 (0.5)	9 (0.5)	22 (1.2)	1848	210	3950
Mucosal cancer (T1a)	415	0	2 (0.5)	2 (0.5)	1514	49	1978
(B) Advanced cancer (T2–T4)	4344	37 (0.9)	37 (0.9)	105 (2.4)	2	2282	6628
(C) Not specified	11	1 (9.1)	0	1 (9.1)	1	0	12
2. Multiple primary cancers	1050	7 (0.7)	7 (0.7)	21 (2.0)	520	338	1908
1) Synchronous	587	4 (0.7)	2 (0.3)	10 (1.7)	210	185	982
(1) Head and neck	184	0	0	1 (0.5)	84	59	327
(2) Stomach	226	2 (0.9)	0	4 (1.8)	72	65	363
(3) Others	144	1 (0.7)	2 (1.4)	4 (2.8)	41	42	227
(4) Triple cancers	33	1 (3.0)	0	1 (3.0)	13	19	65
(5) Unknown	0	0	0	0	0	0	0
2) Metachronous	463	3 (0.6)	5 (1.1)	11 (2.4)	310	153	926
(1) Head and neck	102	0	1 (1.0)	2 (2.0)	107	38	247
(2) Stomach	114	2 (1.8)	1 (0.9)	3 (2.6)	75	36	225
(3) Others	221	1 (0.5)	2 (0.9)	5 (2.3)	86	60	367
(4) Triple cancers	26	0	1 (3.8)	1 (3.8)	42	19	87
(5) Unknown	0	0	0	0	0	0	0
Unknown	0	0	0	0	0	0	0

Values in parenthesis represent mortality %

EMR endoscopic mucosal resection (including endoscopic submucosal dissection)