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Comment
. 2024 Mar 8;162(5):205-212.
doi: 10.1016/j.medcli.2023.10.006. Epub 2023 Dec 2.

Clinical differences between transthyretin cardiac amyloidosis and hypertensive heart disease

[Article in English, Spanish]
Ignacio Gallo-Fernández  1 , José López-Aguilera  2 , Rafael González-Manzanares  1 , Cristina Pericet-Rodriguez  1 , Manuel Jesús Carmona-Rico  3 , Jorge Perea-Armijo  4 , Juan Carlos Castillo-Domínguez  1 , Manuel Anguita-Sánchez  1 ; en representación del Grupo de Trabajo de Insuficiencia Cardiaca del Hospital Reina Sofía
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Comment

Clinical differences between transthyretin cardiac amyloidosis and hypertensive heart disease

[Article in English, Spanish]
Ignacio Gallo-Fernández et al. Med Clin (Barc). .

Abstract

Introduction: A significant percentage of patients eventually diagnosed with cardiac transthyretin amyloidosis (TTRA) was previously diagnosed with hypertensive heart disease (HHD), since both conditions usually present with heart failure (HF) with preserved ejection fraction (HFpEF) and ventricular hypertrophy. Our objectives were to evaluate the clinical, electrocardiographic and echocardiographic differences, and to analyse whether there exists a differential prognosis between these two nosological entities.

Materials and methods: We retrospectively included all patients with HHD for whom a cardiac scintigraphy with 99mTc-diphosphonate (GDPD) and a free light chains test in blood and urine were ordered for ATTR screening in our centre, in the period between 2016 and 2021. Those diagnosed with other types of amyloidosis were excluded from the analysis.

Results: A total of 72 patients were analyzed: 33 were finally diagnosed with TTRA and 39 with CHTA. Patients with TTRA had higher levels of ultrasensitive troponin I (TnI-US) and N-terminal brain natriuretic propeptide (NT-ProBNP); in electrocardiography (ECG) they presented a pseudo-infarction pattern more frequently as well as conduction disturbances; in echocardiography (TTE) they presented a higher degree of ventricular hypertrophy, left ventricular dysfunction and worse diastolic function parameters, with elevated filling pressures. In the 4-year follow-up, the ATTR group showed greater need for pacemaker (PCM), with no evidence regarding mortality, development of atrial fibrillation (AF), or more admissions for heart failure (HF).

Conclusions: In our series, patients with TTRA showed clinical, electrocardiographic and echocardiographic differences compared to patients with HHD, with increased risk of need for PCM.

Keywords: Amiloidosis cardiaca por transtirretina; Cardiac amyloidosis; Cardiopatía hipertensiva; Heart failure; Hypertensive heart disease; Insuficiencia cardiaca; Marcapasos; Pacemaker; Prognosis; Pronóstico.

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