Table 1.
Summary of studies included in the meta-analysis
| Study | N | Threshold for timing of drainage | Early/delayed drainage | Age, years | Sex, male | Surgery, DP | Symptoms | Size, mm | Stents, | Transgastric drainage | Encapsulation | Follow-up period | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PS | SEMS | LAMS | ||||||||||||
| Varadarajulu [23] | 10 | 30 daysa | 4(40)/6(60) | 58 (20–76) | 6(60) | 10(100) | Abdominal pain 10(100), fever 6(60), leukocytosis 8(80) |
95 (45–140) |
10(100) | 0 | 0 | 9(90) | NA | 155 (96–280) days |
| Tilara [24] | 31 | 30 days | 17(55)/14(45) | 61 (20–83) | 13(42) | 15(48) | Abdominal pain 26(84), fever 13(42), leukocytosis 3(10), increased size 1(3) |
85b (30–150) |
31(100) | 0 | 0 | 30(97) | NA | NA |
| Caillol [25] | 41 | 25 days | 22(54)/19(46) | 61b | 19(46) | 26(63) | Abdominal pain 39(95), fever 23(56), increased size 2(5) | 76b | 39(95)c | 0 | 2(5) | 39(95) | NA | 44.75 (29.24–65.74) months |
| Storm [26] | 75 | 30 days | 42(56)/33(44) | 59.5b | 41(53) | 63(82) | NA | 78b | 35(47) | 2(3) | 38(51) | 69(92) | NA | 262 (39–1485) days |
| Fujimori [27] | 30 | 15 days | 14(47)/16(53) | 64.5 (10–87) | 18(60) | 24(80) | Abdominal pain 7(23), fever 19(63), asymptomatic 2(7), others 2(7) |
69.5 (38–145) |
23(77)d | 0 | 4(13) | 29(97) | 23(70) | 14 (0.6–117) months |
| Oh [28] | 48 | 14 days | 29(60)/19(40) | 59.4 (52–69)e | 30(63) | 21(44) | Abdominal pain 27(56), fever 18(38), leukocytosis 2(4), increased size 1(2) | NA | 7(15)c | 41(85) | 0 | 48(100) | 39(81) | 13.1 (8.1–31.2)e months |
Numbers are shown in median (range) or n (%), unless otherwise noted
DP distal pancreatectomy, LAMS lumen-apposing metal stent, NA not available, PS plastic stent, SEMS tubular self-expandable metal stent
aThreshold was not originally defined but was set at 30 days due to the balance of case numbers
bMean
cIncluding one nasocystic drain alone
dThree patients underwent aspiration alone
eInterquartile range