BACKGROUND: Handheld echocardiography (HHE) is concordant with standard transthoracic echocardiography (TTE) in a variety of settings but has not been thoroughly compared to traditional TTE in patients with acute myocardial infarction (AMI). HYPOTHESIS: Completed by experienced operators, HHE provides accurate diagnostic capabilities compared with standard TTE in AMI patients. METHODS: This study prospectively enrolled patients admitted to the coronary care unit with AMI. Experienced sonographers performed HHE with a V-scan. All patients underwent clinical TTE. Each HHE was interpreted by 2 experts blinded to standard TTE. Agreement was assessed with κ statistics and concordance correlation coefficients. RESULTS: Analysis included 82 patients (mean age, 66 years; 74% male). On standard TTE, mean left ventricular (LV) ejection fraction was 46%. Correlation coefficients between HHE and TTE were 0.75 (95% confidence interval: 0.66 to 0.82) for LV ejection fraction and 0.69 (95% confidence interval: 0.58 to 0.77) for wall motion score index. The κ statistics ranged from 0.47 to 0.56 for LV enlargement, 0.55 to 0.79 for mitral regurgitation, and 0.44 to 0.57 for inferior vena cava dilatation. The κ statistics were highest for the anterior (0.81) and septal (0.71) apex and lowest for the mid inferolateral (0.36) and basal inferoseptal (0.36) walls. CONCLUSIONS: In patients with AMI, HHE and standard TTE demonstrate good correlation for LV function and wall motion. Agreement was less robust for structural abnormalities and specific wall segments. In experienced hands, HHE can provide a focused assessment of LV function in patients hospitalized with AMI; however, HHE should not substitute for comprehensive TTE.
BACKGROUND: Handheld echocardiography (HHE) is concordant with standard transthoracic echocardiography (TTE) in a variety of settings but has not been thoroughly compared to traditional TTE in patients with acute myocardial infarction (AMI). HYPOTHESIS: Completed by experienced operators, HHE provides accurate diagnostic capabilities compared with standard TTE in AMI patients. METHODS: This study prospectively enrolled patients admitted to the coronary care unit with AMI. Experienced sonographers performed HHE with a V-scan. All patients underwent clinical TTE. Each HHE was interpreted by 2 experts blinded to standard TTE. Agreement was assessed with κ statistics and concordance correlation coefficients. RESULTS: Analysis included 82 patients (mean age, 66 years; 74% male). On standard TTE, mean left ventricular (LV) ejection fraction was 46%. Correlation coefficients between HHE and TTE were 0.75 (95% confidence interval: 0.66 to 0.82) for LV ejection fraction and 0.69 (95% confidence interval: 0.58 to 0.77) for wall motion score index. The κ statistics ranged from 0.47 to 0.56 for LV enlargement, 0.55 to 0.79 for mitral regurgitation, and 0.44 to 0.57 for inferior vena cava dilatation. The κ statistics were highest for the anterior (0.81) and septal (0.71) apex and lowest for the mid inferolateral (0.36) and basal inferoseptal (0.36) walls. CONCLUSIONS: In patients with AMI, HHE and standard TTE demonstrate good correlation for LV function and wall motion. Agreement was less robust for structural abnormalities and specific wall segments. In experienced hands, HHE can provide a focused assessment of LV function in patients hospitalized with AMI; however, HHE should not substitute for comprehensive TTE.
Authors: Michael W Cullen; Lori A Blauwet; Ori M Vatury; Sharon L Mulvagh; Thomas R Behrenbeck; Christopher G Scott; Patricia A Pellikka Journal: Mayo Clin Proc Date: 2014-03-29 Impact factor: 7.616
Authors: Pamela S Douglas; Bijoy Khandheria; Raymond F Stainback; Neil J Weissman; Ralph G Brindis; Manesh R Patel; Bijoy Khandheria; Joseph S Alpert; David Fitzgerald; Paul Heidenreich; Edward T Martin; Joseph V Messer; Alan B Miller; Michael H Picard; Paolo Raggi; Kim D Reed; John S Rumsfeld; Anthony E Steimle; Russ Tonkovic; Krishnaswami Vijayaraghavan; Neil J Weissman; Susan Bok Yeon; Ralph G Brindis; Pamela S Douglas; Robert C Hendel; Manesh R Patel; Eric Peterson; Michael J Wolk; Joseph M Allen Journal: J Am Coll Cardiol Date: 2007-07-10 Impact factor: 24.094
Authors: Max J Liebo; Rachel L Israel; Elizabeth O Lillie; Michael R Smith; David S Rubenson; Eric J Topol Journal: Ann Intern Med Date: 2011-07-05 Impact factor: 25.391
Authors: Michael W Cullen; Jeffrey B Geske; Nandan S Anavekar; J Wells Askew; Bradley R Lewis; Jae K Oh Journal: Clin Cardiol Date: 2017-07-19 Impact factor: 2.882
Authors: Michael W Cullen; Jeffrey B Geske; Nandan S Anavekar; J Wells Askew; Bradley R Lewis; Jae K Oh Journal: Clin Cardiol Date: 2017-07-19 Impact factor: 2.882