Percutaneous endoscopic necrosectomy for walled-off necrosis in the retroperitoneal space of the elderly: A case report

Table 1 Overview of studies and case reports regarding percutaneous endoscopic necrosectomy

Ref.	Patients, n	Mean age, yr	Oldest age, yr	Size of collection, mean, cm	Previous endoscopic/surgical treatment attempt (n)	Mean number of PEN sessions performed	Devices used for necrosectomy	Length of time stent in place, mean, days	Clinical success, n (%)
Bakken et al[6], 2011	1	75	75	NA	PCD	NA	Snares, rat toothed forceps	NA	1/1 (100)
Bakken et al[7], 2011	2	70	74	NA	NA	2.5	NA	25	2/2 (100)
Patil et al[8], 2021	1	59	59	14	PCD	4	Snares, stone retrieval baskets	28	1/1 (100)
Binda et al[9], 2021	1	61	61	NA	PCD, ETN	4	Snares	14	1/1 (100)
Ke et al[10], 2019	23	43	54	NA	PCD	2	Snares, grasping forceps	7	16/23 (69.57)
Thorsen et al[11], 2018	5	44	72	33.4	PCD (3), ETN (2)	5.75	Snares, tripod forceps, stone retrieval baskets	37.5	4/5 (80)
Tringali et al[12], 2018	3	45	64	15	PCD (3)	3	Dormia baskets	12.7	2/3 (66.67)
Saumoy et al[13], 2017	9	62	81	11.2	PCD (9)	3	Snares, stone retrieval baskets	14.7	8/9 (88.89)
D'Souza et al[14], 2017	1	32	32	NA	PCD	1	Snares	NA	1/1 (100)
Sato et al[15], 2016	1	13	13	NA	PCD	3	NA	17	1/1 (100)
Kedia et al[16], 2015	1	56	56	17	PCD, ETN	2	NA	NA	1/1 (100)
Cerecedo-Rodriguez et al[17], 2014	1	46	46	NA	PCD, surgical lavages	7	NA	NA	1/1 (100)
Navarrete et al[18], 2011	1	37	37	NA	PCD	4	NA	12	1/1 (100)
Laopeamthong et al[19], 2019	1	48	48	NA	PCD	4	Snares	NA	1/1 (100)
Our case	1	88	88	31	PCD	10	Snares, grasping forceps	84	1/1 (100)

PEN: Percutaneous endoscopic necrosectomy; PCD: Percutaneous catheter drainage; ETN: Endoscopic transluminal necrosectomy; NA: Not available.