Retrospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jan 14, 2015; 21(2): 525-532
Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.525
Table 1 Patient and procedural characteristics of 551 cases included in the analysis
Patients
Age (yr)62 (18-90)
Gender: male/female285 (52)/266 (48)
Setting: in-patient/out-patient298 (54)/249 (46)
BMI24.8 (15.1-41.5)
Sleep apnea syndrome: yes/no17 (3)/528 (97)
Previously known sedation related complications: no/yes540 (99)/7 (1)
ASA classification: I/II/III160 (29)/215 (39)/173 (32)
Lung disease: yes/no59 (11)/489 (89)
Heart disease: yes/no132 (24)/416 (76)
Procedural measurements and safety monitoring
Using capnography267 (50)
Investigation time (min)32 (2-126)
Hypoxemia (at least one episode)241 (44)
Hypoxemia (p02 < 90%; at least one episode)71 (13)
Hypoxemia (p02 < 85%, at least one episode)23 (4)
Hypotension (at least one episode)10 (2)
Bradycardia (at least one episode)50 (9)
Using midazolam57 (10)
Using propofol526 (95)
Propofol dose (mg)140 (0-800)
Table 2 Colonoscopy outcome and Procedural findings (n = 551) n (%)
FindingTotal/detection rate
Colonic lesions (entire colon)
Lesions total (polyps, adenomas, carcinomas)430
Polyps412
Adenomas220
Advanced adenomas41
Carcinomas18
Polyp detection rate137%
Adenoma detection rate122%
Cases with at least 1 adenoma121
Cases with 2 or more adenomas46
Other colonic pathology
Hemorrhoids19 (3)
Stenosis4 (1)
Angiodysplasia14 (3)
Diverticula53 (10)
Mucosal Bleeding5 (1)
Mucosal inflammation86 (16)
Table 3 Local distribution of colon adenomas in 551 cases n (%)
FindingTotal/detection rate
Adenomatous lesion in the right colon
Adenomas126
Adenoma detection rate113%
Advanced adenomas23
Advanced adenoma deletion rate19 (3)
Adenomatous lesion in the left colon
Adenomas94
Adenoma detection rate113%
Advanced adenomas18
Advanced adenoma deletion rate17 (3)
Simultaneous detection of lesions
(Cases with at least one adenoma in both right and left colon)
Adenomas22 (4)
Advanced adenomas0