The investigators hypothesize that the addition of capnography during moderate sedation will improve recognition of hypoventilation and apnea. This will lead to an increased frequency of staff interventions such as verbal or physical stimulation for these events in order to improve ventilation which will in turn lead to a reduction in the frequency of oxygen desaturations. If capnography proves to be effective in creating earlier detection and intervention for hypoventilation and apnea during moderate sedation provided by non-anesthesiologists, this device can be used in a variety of clinical settings to enhance patient safety.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
167
Use of capnography as an additional monitor during sedation to detect hypoventilation and apnea prior to declines in pulse oximetry and clinical examination findings
Yale-New Haven Children's Hospital
New Haven, Connecticut, United States
Frequency of Staff Interventions for Hypoventilation.
These include verbal or physical stimulation, administration of supplemental oxygen, bag-valve mask ventilation, or use invasive airway devices.
Time frame: Every 30 seconds during sedation; this is on average 30 minutes (range 10-240 minutes)
Frequency of Hypoxia Defined as Pulse Oximetry Less Than 95%.
While there were 77 patients per group, each patient had vital signs measured every 30 seconds for the duration of their stay. This resulted in a variable amount of time points (data points) recorded per patient. Our event frequency was the number of events (outcome measure of abnormal vital signs) per number of time points for each patient. This is presented as an event rate.
Time frame: Every 30 seconds during sedation; this is on average 30 minutes (range 10-240 minutes)
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