It is often difficult for anesthesiologists to select an ultrasound method that will give consistent results and also be a reliable way to examine the diaphragm, especially on the left side of the chest.
In this study, two anesthesiologists blinded to one another's scan results, will perform ultrasound scan of the diaphragm using three different methods and the measurements will be analyzed to see the reliability of each method.
Eligibility
Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria:
Participants must meet all the following inclusion criteria to be eligible for the study:
1. Any elective surgical patient
2. Age ≥18 years
3. American Society of Anesthesiologists class I to III
Exclusion Criteria:
Participants will not be eligible for the study if any of the exclusion criteria is present:
1. Pregnancy - patients will be asked if they are pregnant or not and screened post-consent from their medical chart.
2. History of diaphragmatic dysfunction
3. Previous surgical procedures on the lung, thorax or diaphragm.
4. Inability to understand the study activities and provide informed consent when explained about the study and the consent process
5. Refusal to participate in study
Primary outcome measure(s)
To measure the intra-rater reliability of the excursion of the zone of apposition, (ZOA) — Through study completion, an average of 2 years To measure the intra-rater (between two measurements of the same scanner) reliability of the excursion of the ZOA using a linear probe over the lateral chest wall, quantified by Intraclass correlation coefficients (ICC).
To measure the inter-rater reliability of the excursion of the zone of apposition, (ZOA) — Through study completion, an average of 2 years To measure the inter-rater (between two ultrasound scanners) reliability of the excursion of the zone of apposition, (ZOA) using a linear probe over the lateral chest wall, quantified by Intraclass correlation coefficients (ICC).
Trial sites (1)
Facility
City
Region
Status
Toronto Western Hospital, University Health Network
Toronto
Ontario
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This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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