Copyright ©The Author(s) 2016.
World J Gastroenterol. May 7, 2016; 22(17): 4307-4320
Published online May 7, 2016. doi: 10.3748/wjg.v22.i17.4307
Table 1 Lymph node dissections according to gastrectomy type for gastric cancer
Type of gastrectomyType of disectionRetrieved lymph nodestations
TotalD0Less than D1
D1No. 1-7
D1+D1 + No. 8a, 9, 11p1
D2D1 + No. 8a, 9, 10, 11p, 11d, 12a1
Distal subtotalD0Less than D1
D1No. 1, 3, 4sb, 4d, 5, 6, 7
D1+D1 + No. 8a, 9
D2D1 + No. 8a, 9, 11p, 12a
Pylor preservingD0Less than D1
D1No. 1, 3, 4sb, 4d, 6, 7
D1+D1+ No. 8a, 9
ProximalD0Less than D1
D1No. 1, 2, 3a, 4sa, 4sb, 7
D1+D1 + No. 8a, 9,11p2
Table 2 Comparison of the sixth and the seventh TNM staging systems for the pT and pN stages
Tumor localization6th TNMstaging system7th TNMstaging system
Lamina propria or muscularis mucosaT1T1a
Muscularis propriaT2aT2
Serozal invasionT3T4a
Adjacent organ invasionT4T4b
1-2 lymp node metastasisN1N1
3-6 lymp node metastasisN1N2
7-15 lymp node metastasisN2N3a
≥ 16 lymp node metastasisN3N3b
Table 3 Ongoing multicentric studies of minimally invasive surgery
JapanJCOG 0912 Phase IIILG vs OG
South KoreaKLASS 01 Phase IIILG vs OG
South KoreaKLASS 02-NCT01456598LG vs OG ( for AGC )
JapanJLSSG0901 Phase II-IIILG vs OG (for AGC)
ChinaCLASS 01-NCT01609309LG vs OG (for AGC)
South KoreaKLASS 03-NCT01584336LG vs OG (for TG)
Phase II
South KoreaNCT01309256LG vs RAG