• Cristina Aguilera Agudo, Vanessa Moñivas Palomero, Esther González López, and Susana Mingo Santos.
• Puerta de Hierro University Hospital of Majadahonda, Madrid, Spain.
• Ups. J. Med. Sci. 2022 Jan 1; 127.

BackgroundWild-type transthyretin amyloidosis is a systemic disease with predominantly cardiac symptoms. The aim of this study was to assess the short-term prognosis of these patients through contractile reserve measured by stress echocardiography, given the usefulness that this parameter has demonstrated in other populations. We considered major events as death from any cause and hospitalization for heart failure.Material And MethodsWe conducted a study with a 1-year follow-up in 11 patients who were proposed to undergo a stress echocardiogram, with the follow-up as usual according to their doctor. We excluded pacemaker wearers, patients with permanent atrial fibrillation, those incapable of exertion at low loads, and those with poor acoustic windows.ResultsWe found that contractile reserve estimated by right ventricular free wall longitudinal strain is correlated with a lower rate of death (all of them cardiovascular deaths) and hospitalizations for heart failure.ConclusionsContractile reserve assessed by right ventricular free wall longitudinal strain is a predictor of major events in patients with wild-type transthyretin cardiac amyloidosis.© 2022 The Author(s). Published by Upsala Medical Society.

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