The study aims to explore if Maximum Inspiratory Pressure can predict postoperative breathlessness in obese patients receiving interscalene blocks for shoulder surgery. The main question is: does baseline Maximum Inspiratory Pressure have any association with postoperative breathlessness after interscalene blocks in class 2 or higher obese patients (BMI\>35). Preoperative and postoperative lung volumes, pressures, breathlessness score and respiratory outcomes will be measured on participants already receiving shoulder surgery with interscalene blocks.
Study Type
OBSERVATIONAL
Enrollment
45
Lung volumes, pressures and breathlessness scores to be measured in pre and post operative phase of care on the same day
University of North Carolina
Chapel Hill, North Carolina, United States
Incidence of Moderate to Severe Breathlessness
Score of 3 or above on Modified Borg Breathlessness Scale
Time frame: Baseline (Arrival to pre-operative phase), Recovery (Immediately post-surgical, up to 3 hours)
Oxygen Saturation in post-anesthesia care unit
Measured by pulse oximetry
Time frame: Recovery (Immediately post-surgical, up to 3 hours)
Post-anesthesia care unit length-of-stay
Total time spent in post-operative phase of care
Time frame: Recovery (Immediately post-surgical, up to 3 hours)
Duration of Oxygen supplementation in post-anesthesia care unit
Total duration of oxygen supplementation in post-operative phase of care
Time frame: Recovery (Immediately post-surgical, up to 3 hours)
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