Table 9.

Changes in the annual number of surgeries among the GI operative procedures on the gallbladder

Organ	Degree of difficulty	Procedure	No. of surgeries
			2011	2012	2013	2014	2015	2016	2017
Gallbladder	Low	Cholangiotomy	142	163	174	139	141	132	106
	Low	Cysticolithectomy	1094	1093	750	641	611	571	63
	Low	Cholecystectomy	93 665	112 048	119 455	122 026	124 267	128 809	130 570
	Low	External cholecystostomy	104	119	127	124	109	146	143
	Low	Cystoenteric anastomosis	70	73	61	61	67	59	54
	Med	Cysticolithectomy	3682	4117	3880	3574	3342	3057	2962
	Med	Biliary tract reconstruction	150	162	265	315	362	347	332
	Med	Biliary bypass	1594	1751	1765	1686	1613	1490	1300
	Med	Cholangioplasty	201	180	192	168	156	176	128
	Med	Duodenal papilloplasty	66	68	50	33	31	37	30
	Med	Choledochal dilatation	217	240	254	242	248	291	264
	Med	Biliary fistula closure	43	42	42	37	40	34	39
	High	Malignant gallbladder tumor surgery (excluding simple cholecystectomy)	869	1013	929	963	969	948	1027
	High	Malignant bile duct tumor surgery	1268	1426	1202	1153	1155	1245	1232
	High	Biliary atresia surgery	18	18	16	20	15	18	17

Abbreviation: GI, gastrointestinal.