Retrospective Study
Copyright ©The Author(s) 2018.
World J Gastrointest Endosc. Apr 16, 2018; 10(4): 74-82
Published online Apr 16, 2018. doi: 10.4253/wjge.v10.i4.74
Table 1 Patient characteristics n (%)
No. of patients (n = 115)All≤ 48 h(n = 39, 33.9)48 h-14 d(n = 35, 30.4)≥ 14 d(n = 41, 35.7)P value1
Time to CE after OOGIB, mean ± SD, d48.9 ± 161.5
Age, mean ± SD, yr65.1 ± 14.663 ± 14.263.9 ± 15.968.2 ± 13.60.234
Female sex59 (51.3)18 (46.2)20 (57.1)21 (51.2)0.64
Comorbidities
Cardiovascular disease61 (53)20 (51.3)16 (45.7)25 (61)0.40
Renal disease20 (17.4)2 (5.1)8 (22.9)10 (24.4)0.045
Hepatic disease8 (7)3 (7.7)2 (5.7)3 (7.3)0.940
Tumour7 (6.1)2 (5.1)2 (5.7)3 (7.3)0.91
Previous abdominal surgeries27 (23.5)10 (25.6)8 (22.9)9 (22)0.92
Drugs
Anti-platelet drugs49 (42.6)17 (43.6)13 (37.1)19 (46.3)0.71
Anticoagulation25 (21.7)8 (20.5)9 (25.7)8 (19.5)0.79
NSAIDs10 (8.7)4 (10.3)2 (5.7)4 (9.8)0.75
Melena63 (54.8)18 (46.2)21 (60)24 (58.5)0.41
Hematochezia52 (45.2)21 (53.8)14 (40)17 (41.5)0.41
On-going OOGIB62 (53.9)39 (100)17 (48.6)6 (14.6)< 0.001
Hg at admission, mean ± SD, g/dL8.91 ± 6.248.51 ± 2.658.26 ± 2.329.93 ± 9.880.12
INR at admission, mean ± SD1.61 ± 1.181.57 ± 1.001.83 ± 1.651.47 ± 0.770.08
Packed RBC transfusions, mean ± SD, units1.41 ± 1.311.41 ± 1.371.51 ± 1.201.29 ± 1.360.29
Inpatient78 (67.8)39 (100)31 (88.6)8 (19.5)< 0.001
Table 2 Patient characteristics according to the system of capsule endoscopy used n (%)
No. of patients (n = 115)AllGiven® (n = 32, 27.8)Mirocam® (n = 83, 72.2)P value1
Time to CE after OOGIB, mean ± SD, d48.9 ± 161.551 ± 119.148.1 ± 175.80.93
Age, mean ± SD, yr65.1 ± 14.660.8 ± 16.966.8 ± 13.30.08
Female sex59 (51.3)18 (56.2)41 (49.4)0.51
Comorbidities
Cardiovascular disease61 (53)15 (46.9)46 (55.4)0.41
Renal disease20 (17.4)3 (9)17 (20.5)0.16
Hepatic disease8 (7)2 (6)6 (7)0.85
Tumour7 (6.1)1 (3)6 (7)0.41
Previous abdominal surgeries27 (23.5)5 (16)22 (26.5)0.22
Drugs
Anti-platelet drugs49 (42.6)12 (37.5)37 (44.6)0.49
Anticoagulation25 (21.7)7 (21.9)18 (21.7)0.98
NSAIDs10 (8.7)4 (12.5)6 (7)0.37
Melena63 (54.8)21 (65.6)42 (50.6)0.15
Hematochezia52 (45.2)11 (34.4)41 (49.4)0.15
On-going OOGIB62 (53.9)7 (21.9)55 (66.3)< 0.001
Hg at admission, mean ± SD, g/dL8.91 ± 6.248.94 ± 2.778.94 ± 7.140.99
INR at admission, mean ± SD1.61 ± 1.181.55 ± 0.811.64 ± 1.290.72
Packed RBC transfusions, mean ± SD, units1.41 ± 1.311.28 ± 1.421.45 ± 1.270.55
Inpatient78 (67.8)18 (56.2)60 (72.3)0.01
Timing of CE
≤ 48 h39 (33.9)4 (12.5)35 (42.2)0.009
48 h-14 d35 (30.4)14 (43.75)21 (25.3)
≥ 14 d41 (35.7)14 (43.75)27 (32.5)
Table 3 Capsule endoscopy findings in all patients and between ≤ 48 h, 48 h-14 d and ≥ 14 d group n (%)
All (n = 115)≤ 48 h (n = 39)48 h-14 d (n = 35)≥ 14 d (n = 41)P value1
Total enteroscopy104 (90.4)33 (84.6)32 (91.4)39 (95.1)0.27
Appropriate cleansing87 (75.7)21 (53.8)31 (88.6)35 (85.4)0.00
Positive Findings94 (81.8)33 (84.3)31 (88.6)31 (75.6)0.30
Angiodysplasia30 (26.1)6 (15.4)11 (31.4)13 (31.7)
Varices1 (0.9)01 (2.9)0
Hemangioma3 (2.6)1 (2.6)1 (2.9)1 (2.4)
Ulcers12 (10.4)3 (7.7)5 (14.3)4 (9,8)
Erosions7 (6)1 (2.6)1 (2.9)5 (12.2)
Tumours11 (9.6)2 (5.1)7 (20)2 (4.9)
Polyps4 (3.5)1 (2.6)2 (5.7)1 (2.4)
Diverticula2 (1.7)1 (2.6)01 (2.4)
Extra-SB cause2 (1.7)2 (5.1)00
Bleeding48 (41.7)23 (59)15 (42.9)10 (24.4)0.007
Inactive bleeding13 (11.3)6 (15.4)5 (14.3)2 (4.9)0.27
Active bleeding35 (30.4)17 (43.6)10 (28.6)8 (19.5)0.06
Table 4 Capsule endoscopy outcomes in all patients, and between ≤ 48 h, 48h-14 d and ≥ 14 d groups n (%)
OutcomeAll (n = 115)≤ 48 h (n = 39)48 h-14 d (n = 35)≥ 14 d (n = 41)P value1P1 (≤ 48 h vs 48 h-14 d)
DY92 (80)32 (82.1)30 (85.7)30 (73.2)0.370.67
TY53 (46.1)26 (66.7)14 (40)13 (31.7)0.0050.02
RR37 (32.2)6 (15.4)12 (34.3)19 (46.3)0.0070.06
Time to rebleed, yr1 yr, 17.81 yr, 11.81 yr, 20.11 yr, 21.9
2 yr, 24.12 yr, 11.82 yr, 30.72 yr, 31.4
3 yr, 33.93 yr, 18.53 yr, 373 yr, 46.9
4 yr, 30.84 yr, 18.54 yr, 444 yr, 58.2
5 yr, 52.65 yr, 605 yr, 53.45 yr, 64.2
Mortality28 (24.3)9 (23.1)10 (28.6)9 (22)0.780.59
Table 5 Type of treatment between ≤ 48 h, 48 h-14 d and ≥ 14 d groups n (%)
Type of treatmentAll (n = 115)≤ 48 h (n = 39)48 h-14 d (n = 35)≥ 14 d (n = 41)P value1
Conservative62 (53.9)13 (33.3)21 (60)28 (68.3)0.005
Endoscopic30 (26.1)14 (35.9)6 (17.1)10 (24.4)0.18
Surgical19 (16.5)9 (23.1)7 (20)3 (7.3)0.13
Radiological3 (2.6)2 (5.1)1 (2.9)00.353
Endoscopic + Surgical1 (0.9)1 (2.6)000.37
Table 6 Outcomes between ≤ 48 h and > 48 h groups and < 14 d and ≥ 14 d groups
Outcome≤ 48 h> 48 hP1 (≤ 48 h vs > 48h)< 14 d≥ 14 dP1 (< 14 d vs ≥ 14 d)
DY32 (82.1)60 (78.9)0.6962 (83.8)30 (73.2)0.17
TY26 (66.7)27 (35.5)0.00240 (54.1)13 (31.7)0.02
RR6 (15.4)31 (43)0.00418 (25)19 (46.3)0.008
Time to re-bleed, yr1 yr, 11.81 yr, 11 yr, 15.61 yr, 21.9
2 yr, 11.82 yr, 31.12 yr, 20.42 yr, 31.4
3 yr, 18.53 yr, 42.63 yr, 26.83 yr, 46.9
4 yr, 18.54 yr, 524 yr, 30.64 yr, 58.2
5 yr, 605 yr, 59.75 yr, 38.35 yr, 64.2
Mortality9 (23.1)19 (25)0.8219 (25.7)9 (22)0.66