Retrospective Study
Copyright ©The Author(s) 2021.
World J Gastrointest Endosc. Feb 16, 2021; 13(2): 45-55
Published online Feb 16, 2021. doi: 10.4253/wjge.v13.i2.45
Table 1 Comparison of baseline characteristics among different sedation modalities (n = 929)

Conscious sedation (n = 353), n (%)
Monitored anesthesia care (n = 278), n (%)
General anesthesia (n = 298), n (%)
Total (n = 929), n (%)
P value
Gender
Male226 (64.02)131 (47.12)176 (59.06)533 (57.37)< 0.0001
Median age58 (45-74)39 (33-64)46 (33-67)52 (33-69)< 0.0001
Type of impaction
Food bolus292 (82.72)138 (49.64)167 (56.04)597 (64.26)< 0.0001
Foreign object61 (17.28)140 (50.36)131 (43.96)332 (35.74)
Presence of chronic co-morbidities58 (16.43)45 (16.19)29 (9.73)132 (14.21)0.0270
Patient with mental health disorder30 (8.50)131 (47.12)108 (36.24)269 (28.96)< 0.0001
Periprocedural airway compromise2 (0.57)5 (1.80)6 (2.01)13 (1.40)0.2449
Overtube used16 (4.53)41 (14.75)45 (15.10)102 (10.98)< 0.001
Table 2 Types of adverse events encountered during/after emergent endoscopy
Endoscopic adverse events
n (%)
Early adverse events (n = 110)
Local adverse events
Bleeding24 (2.58)
Mucosal Lacerations35 (3.77)
Perforation4 (0.43)
Respiratory associated adverse events
Failure to extubate3 (0.32)
Hypoxia12 (1.29)
Aspiration10 (1.08)
Pain
Chest pain4 (0.43)
Abdominal pain10 (1.08)
Delayed Adverse events (n = 53)
Aspiration pneumonia/hypoxia17 (1.83)
Abdominal pain15 (1.61)
Bleeding4 (0.43)
Fever7 (0.75)
Perforation3 (0.32)
Chest pain6 (0.65)
Table 3 Comparison of adverse event rates and hospitalization rates
Variable
Adverse event (n = 151), n (%)
P value
Hospitalization (n = 374), n (%)
P value
Type of anesthesia
Conscious sedation52 (14.73)0.190287 (25.44)< 0.0001
MAC41 (14.75)142 (51.45)
General anesthesia58 (19.46)145 (50.35)
Type of Impaction
Foreign object67 (20.18)0.0156199 (60.86)< 0.0001
Food bolus84 (14.07)175 (30.22)
Severe comorbidity
Yes29 (21.97)0.054763 (49.61)0.0399
No122 (15.31)311 (39.92)
Use of instrument
Yes117 (18.11)0.0204288 (45.93)< 0.0001
No (push method only)34 (12.01)86 (30.82)