Endoscopic ultrasound-guided drainage of pancreatic fluid collections

Table 1 Classification of pancreatic fluid collections

Term	Definition
Acute fluid collection	A collection of enzyme-rich pancreatic juice occurring early (within 48 h) in the course of acute pancreatitis, located in or near the pancreas and always lacking a well-defined wall of granulation tissue or fibrous tissue
Acute pseudocyst	A collection of pancreatic juice enclosed by a wall of nonepithelialized granulation tissue, arising as a consequence of acute pancreatitis, requiring at least 4 wk to form and devoid of significant solid debris
Chronic pseudocyst	A collection of pancreatic juice enclosed by a wall of fibrous or granulation tissue, arising as a consequence of chronic pancreatitis
Early pancreatic necrosis	A diffuse or focal area of nonviable pancreatic parenchyma greater than 30% of the gland by CT-scan, typically associated with peripancreatic fat necrosis
Late organized pancreatic necrosis	Evolution of acute necrosis to a partially encapsulated, well-defined collection of pancreatic juice and necrotic debris
Pancreatic abscess	A circumscribed intra-abdominal collection of pus, usually in proximity to the pancreas, containing little or no pancreatic necrosis, arising as a consequence of acute pancreatitis or pancreatic trauma

Table 2 Results of endoscopic ultrasound-guided drainage of pancreatic fluid collections

Ref.	Year	Number of PFCs	Technical success (%)	Clinical success (%)	Complications (%)	Recurrence (%)
Grimm et al[6]	1992	1	100	100	0	0
Binmoeller et al[7]	1995	27	93	78	52	22
Wiersema[8]	1996	1	100	100	0	0
Chan et al[9]	1996	1	100	100	0	0
Gerolami et al[10]	1997	3	100	100	0	0
Ardengh et al[11]	1998	2	100	100	0	0
Giovannini et al[12]	1998	6	100	83	0	16
Pfaffenbach et al[13]	1998	11	91	82	0	18
Vilmann et al[14]	1998	1	100	100	0	0
Seifert et al[15]	2000	3	100	100	0	0
Seifert et al[16]	2000	6	100	83	0	0
Fuchs et al[17]	2000	3	100	100	0	0
Baron et al[18]	2000	1	100	100	0	0
Wiersema et al[19]	2001	1	100	100	0	0
Inui et al[20]	2001	3	100	100	0	33
Giovannini et al[21]	2001	35	100	89	3	9
Norton et al[22]	2001	14	93	93	14	23
Seifert et al[23]	2001	4	100	75	0	0
Vosoghi et al[24]	2002	14	100	93	7	7
Enya et al[25]	2003	13	100	85	0	0
Kakutani et al[26]	2004	1	100	100	0	0
Seewald et al[27]	2005	13	100	85	30	15
Sriram et al[28]	2005	8	100	100	12	0
Benyoumes et al[29]	2006	1	100	100	0	0
Raczynski et al[30]	2006	2	100	100	0	0
Charnley et al[31]	2006	13	100	92	0	0
Hookey et al[32]	2006	32	96	93	11	12
Krüger et al[33]	2006	35	94	88	33	12
Azar et al[34]	2006	23	91	82	4	18
Antillon et al[35]	2006	33	94	87	15	4
Kahaleh et al[36]	2006	46	100	93	19	NA
Itoi et al[37]	2006	3	100	100	0	0
Rout et al[38]	2006	1	100	100	0	0
Seewald et al[39]	2006	8	100	100	0	0
Ahlawat et al[40]	2006	11	100	82	18	18
Arvanitakis et al[41]	2007	46	100	94	22	11
Lopes et al[42]	2007	51	94	84	25	17
Jansen et al[43]	2007	8	100	100	0	0
Voermans et al[44]	2007	7	100	100	14	0
Voermans et al[45]	2007	25	100	93	40	7
Kang et al[46]	2008	1	100	100	0	0
Escourrou et al[47]	2008	13	100	100	46	0
Ardengh et al[48]	2008	77	94	91	6	11
Hocke et al[49]	2008	30	97	83	23	3
Varadarajulu et al[50]	2008	24	100	96	4	NA
Varadarajulu et al[51]	2008	60	95	93	2	4
Barthet et al[52]	2008	28	100	89	25	NA
Jah et al[53]	2008	1	100	100	0	0
Reddy et al[54]	2008	6	100	100	16	0
Talreja et al[55]	2008	18	100	95	44	0
Schrover et al[56]	2008	8	100	75	13	0
Mathew et al[57]	2008	6	100	100	16	0
Tarantino et al[58]	2009	1	100	100	0	0
Park et al[59]	2009	39	95	100	7	6
Yasuda et al[60]	2009	26	92	95	0	17
Itoi et al[61]	2009	13	100	100	0	0
Trevino et al[62]	2009	3	100	100	0	0
Varadarajulu et al[63]	2009	10	100	90	0	0
Piraka et al[64]	2009	2	100	100	50	0
Ang et al[65]	2009	10	100	100	10	0
Okabe et al[66]	2009	2	100	100	0	0
Antillon et al[67]	2009	1	100	100	0	0
Chase et al[68]	2009	1	100	100	0	0
Becker et al[69]	2009	7	100	100	57	14
Ahn et al[70]	2010	47	98	100	11	11
Khashab et al[71]	2010	6	100	NA	0	NA
Tarantino et al[72]	2010	1	100	100	0	0
Koo et al[73]	2010	1	100	100	0	0
Pallapothu et al[74]	2011	6	100	77	16	16
Jazrawi et al[75]	2011	10	100	100	0	10
Larghi et al[76]	2011	1	100	100	0	0
Sadik et al[77]	2011	26	100	88	15	4
Will et al[78]	2011	132	97	96	29	15

NA: Not available; PFCs: Pancreatic fluid collections.