Endpoint
The primary outcome was the presence of adverse sedative effects that
required cessation of the anesthetic drug: oxygen desaturation
(< 90%) or need for assisted ventilation/intubation,
bradycardia (heart rate < 45 bpm) and hypotension (systolic
blood pressure < 90 mmHg) requiring fluid administration.
Secondary endpoints were procedural success and procedural and
fluoroscopy time. The presence of any other complication was also
recorded.