The Canadian journal of cardiology · 2018
Feasibility and Reliability of Nonexpert POCUS for Cardiovascular Preparticipation Screening of Varsity Athletes: The SHARP Protocol.
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Moulson Nathaniel, Jaff Zardasht, Wiltshire Victoria, Taylor Taryn, O'Connor H Michael, Hopman Wilma M, Johri Amer M
Аннотация
BACKGROUND: Point of care ultrasound (POCUS) is a potential adjunctive cardiovascular preparticipation screening modality for young competitive athletes. A novel cardiac POCUS screening protocol, Screening the Heart of the Athlete Research Program (SHARP), was developed for nonexpert examiners to assess common structural etiologies associated with sudden cardiac arrest/death (SCA/D).
METHODS: Assessment of primary outcomes of feasibility, and reliability of obtained measurements, performed by comparison to formal transthoracic echocardiogram was undertaken. Inter-rater reliability was based on Intraclass correlation coefficients (ICC) defined as moderate for 0.40 to 0.59, good for 0.60 to 0.79, and excellent for 0.80 or greater. Electrocardiograms (ECGs) were also obtained. Identification of disease or other abnormalities was a secondary outcome.
RESULTS: Fifty varsity athletes at our institution underwent the SHARP protocol, with 19 undergoing formal transthoracic echocardiogram and ECG for comparison. POCUS image quality was good to excellent. Feasibility of assessing for hypertrophic cardiomyopathy, aortic root dilatation, and left-ventricular function was deemed highly possible but limited in 20% for right-ventricular assessment. Reliability was good for measurements of interventricular septal thickness (0.67), end diastolic left-ventricular diameter (0.61), aortic root diameter (0.63), and moderate for left-ventricular posterior wall thickness (0.42). No cardiovascular abnormalities were detected.
CONCLUSIONS: A novel, comprehensive SHARP POCUS protocol performed by nonexpert practitioners demonstrated feasibility and reliability to assess varsity level athletes for common structural etiologies associated with SCA/D. Further large athlete screening cohort studies are required to validate the SHARP protocol and the role of cardiac POCUS as a screening modality.
METHODS: Assessment of primary outcomes of feasibility, and reliability of obtained measurements, performed by comparison to formal transthoracic echocardiogram was undertaken. Inter-rater reliability was based on Intraclass correlation coefficients (ICC) defined as moderate for 0.40 to 0.59, good for 0.60 to 0.79, and excellent for 0.80 or greater. Electrocardiograms (ECGs) were also obtained. Identification of disease or other abnormalities was a secondary outcome.
RESULTS: Fifty varsity athletes at our institution underwent the SHARP protocol, with 19 undergoing formal transthoracic echocardiogram and ECG for comparison. POCUS image quality was good to excellent. Feasibility of assessing for hypertrophic cardiomyopathy, aortic root dilatation, and left-ventricular function was deemed highly possible but limited in 20% for right-ventricular assessment. Reliability was good for measurements of interventricular septal thickness (0.67), end diastolic left-ventricular diameter (0.61), aortic root diameter (0.63), and moderate for left-ventricular posterior wall thickness (0.42). No cardiovascular abnormalities were detected.
CONCLUSIONS: A novel, comprehensive SHARP POCUS protocol performed by nonexpert practitioners demonstrated feasibility and reliability to assess varsity level athletes for common structural etiologies associated with SCA/D. Further large athlete screening cohort studies are required to validate the SHARP protocol and the role of cardiac POCUS as a screening modality.