Table 1.
Prevalence and types of SPSSs.
| Reference | Imaging test | Number of patients evaluated | Prevalence of SPSS number (percentage) | Type of SPSS number (percentage from the total sample, unless specified) |
|---|---|---|---|---|
| Cho et al.35 | CT | 60 | NA | - Coronary venous: 48 (80) - Paraumbilical: 26 (43) - Abdominal wall: 18 (30) - Perisplenic: 18 (30) - Mesenteric: 6 (10) - Splenorenal: 6 (10) - Gastrorenal: 4 (7) |
| Sacerdoti et al.36 | DUS | 184 | NA | - Paraumbilical: 62 (33.7) |
| Von Herbay et al.27 | DUS | 109 | 41 (38) | - Splenorenal: 16 (15) - Paraumbilical: 8 (9) - Gastric: 2 (2) - Combinations (>1 SPSS): 9 (8) - Others: 5 (5) - Without SPSS: 68 (62) |
| Dömland et al.37 | DUS | 70 | NA | - Paraumbilical: 16 (23) |
| Chen et al.38 | DUS | 254 | NA | - Paraumbilical: 28 (11.1) |
| Del Piccolo et al.39 | DUS | 95 | NA | - Paraumbilical: 56 (59) - Alone: 31 (33) - Combination: 25 (26) |
| Berzigotti et al.30 | DUS | 126 | 42 (33.3) | - Paraumbilical: 23 (18.2) - Splenorenal: 13 (10.3) - Left Gastric Vein: 11 (8.7) - Others: 5 (3.9) |
| Aucejo et al.32 | CT | 127 | 16 (12.6) | - Splenorenal: 12 (9.4) - Coronary: 2 (1.6) - IMV cava: 1 (0.8) - Others: 1 (0.8) |
| Zardi et al.28 | DUS | 326 | 130 (39.9) | - Splenorenal: 45 (13.8) - Left gastric vein: 36 (11) - Combination: 25 (7.7) - Paraumbilical: 24 (7.4) - Without SPSS: 196 (60.1) |
| Tarantino et al.40 | DUS | 81 | NA | - Splenorenal: 15 (18.5) |
| Berzigotti et al.31 | DUS | 86 | 36 (42) | - Paraumbilical: 17 (19.8) - Left gastric vein: 15 (17.4) - Splenorenal: 6 (10.0) - Short gastric vein: 5 (5.8) |
| Kondo et al.41 | DUS | 181 | NA | - Paraumbilical: 47 (26) |
| Maruyama et al.42 | DUS | 162 | NA | - Splenorenal: 30 (18.5) - Short gastric vein: 17 (10.5) |
| Achiwa et al.43 | CT | 451 | NA | - Splenorenal: 50 (11.1) - Gastrorenal: 23 (5.8) - Paraumbilical: 8 (1.8) - Mesocaval: 3 (0.7) - Others: 2 (0.4) |
| Simón-Talero et al.25 | CT (1630) MRI (99) | 1729 | 1036 (60) - Large SPSS: 488 (28%) - Small SPSS: 548 (32%) - Without SPSS: 693 (40%) |
Large SPSS: - Splenorenal: 224 (46)a - Paraumbilical: 132 (27)a - Gastrorenal: 44 (9)a - Mesocaval: 25 (5)a - IMV cava: 20 (4)a - Others: 35 (7)a Small SPSS: - Paraumbilical: 296 (54)b - Splenorenal: 99 (18)b - Gastrorenal: 83 (15)b - Mesocaval: 44 (8)b - IMV cava: 3 (0.5)b - Others: 20 (3.5)b |
| Lipinski et al.29 | DUS | 982 | 338 (34) | - Paraumbilical: 232 (68.6)c
- Splenorenal: 55 (16)c - Mesenteric: 24 (7)c - Combination: 27 (8)c |
| Saks et al.44 | CT | 741 | NA | - Splenorenal: 173 (23) |
| Gómez-Gavara et al.45 | CT MRI |
429 | 75 (17.5)d | - Splenorenal: 40 (60.6)c
- Left gastric: 16 (24.2)c - Mesenterico-iliac: 10 (15.1)c |
| Rodríguez et al.33 | CT/MRI | 326 | 263 (80.7%) - Large SPSS: 113 (35%) - Small SPSS: 150 (46%) - Without SPSS: 63 (19%) |
CT, computed tomography; DUS, Doppler ultrasound; IMV, inferior mesenteric vein; MRI, magnetic resonance imaging; NA, data not available and not possible to calculate with the data provided; PVT, portal vein thrombosis; SPSS, spontaneous portosystemic shunt.
a
Percentage from the total of Large SPSS.
b
Percentage from the total of Small SPSS.
c
Percentage from the total of SPSS.
d
9 patients with SPSS were excluded due to extent PVT and type of SPSS is not mentioned.