Cardiopulmonary unplanned events related to conscious sedation constitute a major proportion of gastrointestinal (GI) endoscopy-associated complications.
Dr David Fleischer and colleagues from Oregon, USA studied the incidence of cardiopulmonary unplanned events during GI endoscopy.
The researchers determined factors that may predict cardiopulmonary unplanned events.
The team performed a retrospective Clinical Outcomes Research Initiative database review of patients undergoing GI endoscopy under conscious sedation.
Data on 324,737 unique procedures performed with the patient under conscious sedation were analyzed.
|Rates of cardiopulmonary unplanned events with colonoscopy was about 1%|
The team observed that unplanned events were reported in 1.4% of procedures, and just under 1% were associated with cardiopulmonary unplanned events.
Rates of cardiopulmonary unplanned events with esophagogastroduodenoscopy, colonoscopy, endoscopic retrograde cholangiopancreatography, and endoscopic ultrasound were 0.6%, 1.1%, 2.1%, and 0.9%, respectively.
The researchers found that patient age and American Society of Anesthesiologists class were significant predictors of cardiopulmonary unplanned events.
The team noted that inpatient procedures were associated with higher cardiopulmonary unplanned events.
Compared with universities, nonuniversity sites and Veterans Administration Medical Centers had significantly higher cardiopulmonary unplanned events.
Use of supplemental oxygen during a procedure was associated with significantly more cardiopulmonary unplanned events.
Involvement of a trainee with a procedure was also associated with higher cardiopulmonary unplanned events.
Dr Fleischer's team concludes, "During GI endoscopy with conscious sedation, patient's age, higher American Society of Anesthesiologists grade, inpatient status, trainee participation, and routine use of oxygen are associated with a higher incidence of cardiopulmonary unplanned events."