Global research trends in postoperative ileus from 2011 to 2023: A scientometric study

Table 1 The top 10 countries that published articles on postoperative ileus research

Rank	Country	Number of articles	Number of citations	Citations per article
1	China	201	1486	7.39
2	United States	177	3360	18.98
3	Japan	78	887	11.37
4	Germany	65	1236	19.02
5	South Korea	44	545	12.39
6	England	42	990	23.57
7	Netherlands	41	1356	33.07
8	Belgium	31	1257	40.55
9	Australia	26	377	14.5
10	Italy	23	427	18.57

Table 2 The top 10 institutions that published articles on postoperative ileus

Rank	Institutions	Documents	Citations	Country	Citations per article
1	University of Bonn	23	556	Germany	24.17
2	Nanjing University	18	156	China	8.67
3	University of Tokyo	16	267	Japan	16.69
4	University of Amsterdam	15	825	Netherlands	55
5	Royal Adelaide Hospital	14	59	Australia	4.21
6	University of Auckland	14	534	New Zealand	38.14
7	University of Adelaide	13	56	Australia	4.31
8	Yonsei University	13	130	South Korea	10
9	Katholieke University Leuven	11	324	Belgium	29.45
10	Beijing University of Chinese Medicine	11	108	China	9.82

Table 3 Top 10 Keywords with the highest frequency and centrality values for postoperative ileus

Ranking	Frequency	Keyword	Centrality	Keyword
1	341	Postoperative ileus	0.73	Resection
2	120	Colorectal surgery	0.65	Enhanced recovery
3	116	Surgery	0.62	Alvimopan
4	110	Risk factors	0.46	Double blind
5	101	Management	0.37	Management
6	80	Recovery	0.35	Postoperative ileus
7	77	Enhanced recovery	0.35	Abdominal surgery
8	66	Resection	0.32	Intestinal obstruction
9	61	Abdominal surgery	0.3	Mechanisms
10	58	Metaanalysis	0.3	Inflammatory response