Patient characteristics and clinical details
| LAMS (n = 31) | Plastic (n = 29) | P values | |
| Age (years) | |||
| Mean (SD) | 55.8 (15.6) | 60.3 (13.0) | 0.277 |
| Median | 59 | 62 | |
| IQR | 25 | 15 | |
| Range | 22–83 | 32–78 | |
| Gender: n (%) | |||
| Female | 11 (35.5) | 13 (44.8) | 0.460 |
| Male | 20 (64.5) | 16 (55.2) | |
| Ethnicity: n (%) | |||
| Black | 3 (9.7) | 1 (3.4) | 0.750 |
| Hispanic | 2 (6.5) | 3 (10.3) | |
| White | 26 (83.9) | 25 (86.2) | |
| Aetiology of acute pancreatitis: n (%) | |||
| Alcohol | 9 (29.0) | 5 (17.2) | 0.453 |
| Gallstones | 6 (19.4) | 10 (34.5) | |
| Idiopathic | 12 (38.7) | 12 (41.4) | |
| Other* | 4 (12.9) | 2 (6.9) | |
| Serum white cell count (x109 cells/L) | |||
| Mean (SD) | 11.2 (7.0) | 11.3 (6.5) | 0.840 |
| Median | 9.9 | 8.2 | |
| IQR | 6.1 | 8.2 | |
| Range | 2.9–33.0 | 4.3–31.3 | |
| Serum albumin (g/dL) | |||
| Mean (SD) | 3.1 (0.7) | 3.1 (0.6) | 0.813 |
| Median | 3.1 | 3.0 | |
| IQR | 0.8 | 0.8 | |
| Range | 1.8–4.4 | 2.1–4.5 | |
| SIRS preprocedure: n (%) | 9 (29.0) | 13 (44.8) | 0.205 |
| Organ failure preprocedure: n (%) | 2 (6.5) | 4 (13.8) | 0.417 |
| Clinical presentation: n (%) | |||
| Infection† | 27 (87.1) | 26 (89.7) | 0.999 |
| Pain | 4 (12.9) | 3 (10.3) | |
| ASA classification: n (%) | |||
| II | 13 (41.9) | 12 (41.4) | 0.918 |
| III | 17 (54.8) | 15 (51.7) | |
| IV | 1 (3.2) | 2 (6.9) | |
| ICU or high-acuity unit care: n (%) | 10 (32.3) | 10 (34.5) | 0.855 |
| Route of nutrition at index intervention: n (%) | |||
| Oral | 24 (77.4) | 20 (69.0) | 0.596 |
| Enteral | 5 (16.1) | 7 (24.1) | |
| TPN | 1 (3.2) | 2 (6.9) | |
| None | 1 (3.2) | 0 | |
*Other aetiology of acute pancreatitis: in LAMS group—pancreatic cancer in one, pancreas divisum in one, post-ERCP pancreatitis in one, trauma in one patient. In plastic group—post-EUS-FNA in one, trauma in one patient.
†Infected WON defined as positive culture of aspirated contents or gas within WON seen on CT.
ASA, American Society of Anesthesiologist; ERCP, endoscopic retrograde cholangiopancreatography; EUS, endoscopic ultrasound; FNA, fine- needle aspiration; ICU, intensive care unit; LAMS, lumen-apposing metal stent; SIRS, systemic inflammatory response syndrome; TPN, total parenteral nutrition.