Short- and long-term results of endoscopic ultrasound-guided transmural drainage for pancreatic pseudocysts and walled-off necrosis

Table 2 Comparison of patient demographics and clinical characteristics in patients underwent endoscopic ultrasound-guided transmural drainage of walled-off necrosis n (%)

		Treatment success		P value
		Yes (n = 23)	No (n = 16)
Age, yr	Mean (SD)	57.8 (18.1)	55.8 (13.1)
	Range	15-85	30-83	0.484
Gender	Male	16 (69.6)	14 (87.5)	0.359
Etiology of pancreatitis	Alcohol	8 (34.8)	6 (37.5)	0.862
Body mass index	Mean (SD)	23.3 (5.5)	24.2 (3.6)	0.203
ASA classification ≥ 3	Yes	12 (52.2)	13 (81.2)	0.09
Pancreatic parenchymal necrosis ≥ 50%	Yes	2 (8.7)	9 (56.3)	0.004
Duration from onset of pancreatitis to drainage, wk	Mean (SD)	11.1 (7.8)	9.4 (10.9)
	Range	3.1-25.3	2.0-47.7	0.219
Size of cavity, mm (long axis)	Mean (SD)	109.9 (35.7)	156.9 (35.7)
	Range	70-246	66-207	< 0.001
Size of cavity ≥ 150 mm	Yes	2 (8.7)	11 (68.8)	< 0.001
PFC with infection	Yes	13 (56.5)	13 (81.3)	0.203
Follow-up durations, mo	Mean (SD)	26.9 (30.8)	28.1 (33.9)	0.808
	Range	0.7-133.5	1.3-128.3

EUS-GTD: Endoscopic ultrasound-guided transmural drainage; WON: Walled-off pancreatic necrosis; PFC: Pancreatic fluid collection; SD: Standard deviation.