Goal Directed Numeric Coaching as a Means of Preoxygenation
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Thomas Jefferson University
- Enrollment
- 86
- Primary Endpoint
- Vital capacity breaths measured in milliliters
Study Overview
Brief Summary
Pre-oxygenation is an anesthetic technique that allows for extended apneic (suspension of breathing) time prior to attempted endotracheal intubation. A common method to achieve adequate pre-oxygenation is having a patient take four vital capacity breaths of 100% oxygen in thirty seconds. This study seeks to determine if goal directed numeric coaching can lead to more accurate vital capacities during this technique.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •American Society of Anesthesiologists Physical Status 1 and 2
- •nonsmokers
- •primary English speaking
- •undergoing elective surgery with planned endotracheal intubation
Exclusion Criteria
- Not provided
Arms & Interventions
Group A
Anesthesia provider asks the patient to take 4 deep breaths by intermittently stating "take as deep a breath as you can". This is the standard of care technique for preoxygenation before induction of general anesthesia with the end point being 80% expired oxygen. The breath volumes in milliliters are recorded but not stated to the patient.
Intervention: Group A Standard 4 deep breaths measured in milliliters from the ventilator. (Behavioral)
Group B
Anesthesia provider asks the patient to take 4 deep breaths but provides coaching by informing the patient of the numeric volume (milliliters) to reach for every breath. Each tidal volume breath is measured using the anesthesia ventilator and the provider encourages the patient to achieve a higher tidal volume than previously achieved. For example, if the initial tidal volume achieved by the patient is 500 milliliter, the provider states, "that was a 500 milliliter breath, now try to achieve a 1000mL breath". The numeric goal should continue to increase above the patient's actual tidal volume. The breath volumes are recorded.
Intervention: Group B Coached 4 deep breaths measured in milliliters from the ventilator (Behavioral)
Outcomes
Primary Outcomes
Vital capacity breaths measured in milliliters
Time Frame: Pre oxygenation period prior to induction of general anesthesia
Measured vital capacity breaths volume in milliliters
Secondary Outcomes
No secondary outcomes reported
Investigators
Stephen McNulty
Doctor of Osteopathic Medicine
Thomas Jefferson University