Research Article
Canadian Association of Gastroenterology Indicators of Safety Compromise following Colonoscopy in Clinical Practice
Table 2
Adverse events following colonoscopy.
| Indicator | % () | 95% confidence interval | Rate |
| Medication-related | | | | Need for cardiopulmonary resuscitation | 0 (0) | 0–0.1 | 0 | Use of reversal agents | 0.1 (4) | 0.01–0.21 | 1 in 809 | Hypoxia (saturation 85%) | 9.9 (319) | 8.9–10.9 | 1 in 10 | Hypotension (<20% of baseline) | 15.4 (498) | 14.2–16.6 | 1 in 6.5 | Hypertension (>20% of baseline) | 0.9 (30) | 0.57–1.2 | 1 in 108 | Allergic reaction | 0 (0) | 0–0.1 | 0 | Laryngospasm/bronchospasm | 0 (0) | 0–0.1 | 0 |
| Procedure-related early | | | | Perforation | 0.2 (6) | 0.05–0.35 | 1 in 539 | Immediate postpolypectomy bleeding | 0.3 (9) | 0.11–0.49 | 1 in 359 | Need for admission/transfer to emergency department from endoscopy unit | 0.1 (4) | 0.01–0.21 | 1 in 809 | Instrument impaction | 0 (0) | 0–0.1 | 0 | Abdominal pain requiring further evaluation | 0.4 (12) | 0.18–0.62 | 1 in 270 |
| Procedure-related delayed | | | | Death within 30 days | 0.1 (4) | 0.01–0.21 | 1 in 809 | Unplanned hospitalization within 14 days | 0.6 (19) | 0.33–0.87 | 1 in 170 | Unplanned healthcare visit within 14 days | 1.8 (59) | 1.3–2.3 | 1 in 55 | Bleeding within 14 days | 0.2 (6) | 0.05–0.35 | 1 in 539 | Infection | 0.03 (1) | 0.01–0.09 | 1 in 3235 | Symptomatic metabolic complication | 0.03 (1) | 0.01–0.09 | 1 in 3235 |
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