Aims Although systemic embolism is a potential complication in transthyretin amyloid cardiomyopathy (ATTR-CM), data about its incidence and prevalence are scarce. We studied the incidence, prevalence and factors associated with embolic events in ATTR-CM. Additionally, we evaluated embolic events according to the type of oral anticoagulation (OAC) and the performance of the CHA(2)DS(2)-VASc score in this setting. Methods and results Clinical characteristics, history of atrial fibrillation (AF) and embolic events were retrospectively collected from ATTR-CM patients evaluated at four international amyloid centres. Overall, 1191 ATTR-CM patients (87% men, median age 77.1 years [interquartile range-IQR 71.4-82], 83% ATTRwt) were studied. A total of 162 (13.6%) have had an embolic event before initial evaluation. Over a median follow-up of 19.9 months (IQR 9.9-35.5), 41 additional patients (3.44%) had an embolic event. Incidence rate (per 100 patient-years) was 0 among patients in sinus rhythm with OAC, 1.3 in sinus rhythm without OAC, 1.7 in AF with OAC, and 4.8 in AF without OAC. CHA(2)DS(2)-VASc did not predict embolic events in patients in sinus rhythm whereas in patients with AF without OAC, only those with a score >= 4 had embolic events. There was no difference in the incidence rate of embolism between patients with AF treated with vitamin K antagonists (VKAs) (n = 322) and those treated with direct oral anticoagulants (DOACs) (n = 239) (p = 0.66). Conclusions Embolic events were a frequent complication in ATTR-CM. OAC reduced the risk of systemic embolism. Embolic rates did not differ with VKAs and DOACs. The CHA(2)DS(2)-VASc score did not correlate well with clinical outcome in ATTR-CM and should not be used to assess thromboembolic risk in this population.

Vilches, S., Fontana, M., Gonzalez‐Lopez, E., Mitrani, L., Saturi, G., Renju, M., et al. (2022). Systemic embolism in amyloid transthyretin cardiomyopathy. EUROPEAN JOURNAL OF HEART FAILURE, 24(8), 1387-1396 [10.1002/ejhf.2566].

Systemic embolism in amyloid transthyretin cardiomyopathy

Fontana, Marianna;Saturi, Giulia;Caponetti, Angelo;Gagliardi, Christian;Dominguez, Fernando;Longhi, Simone;Rapezzi, Claudio;
2022

Abstract

Aims Although systemic embolism is a potential complication in transthyretin amyloid cardiomyopathy (ATTR-CM), data about its incidence and prevalence are scarce. We studied the incidence, prevalence and factors associated with embolic events in ATTR-CM. Additionally, we evaluated embolic events according to the type of oral anticoagulation (OAC) and the performance of the CHA(2)DS(2)-VASc score in this setting. Methods and results Clinical characteristics, history of atrial fibrillation (AF) and embolic events were retrospectively collected from ATTR-CM patients evaluated at four international amyloid centres. Overall, 1191 ATTR-CM patients (87% men, median age 77.1 years [interquartile range-IQR 71.4-82], 83% ATTRwt) were studied. A total of 162 (13.6%) have had an embolic event before initial evaluation. Over a median follow-up of 19.9 months (IQR 9.9-35.5), 41 additional patients (3.44%) had an embolic event. Incidence rate (per 100 patient-years) was 0 among patients in sinus rhythm with OAC, 1.3 in sinus rhythm without OAC, 1.7 in AF with OAC, and 4.8 in AF without OAC. CHA(2)DS(2)-VASc did not predict embolic events in patients in sinus rhythm whereas in patients with AF without OAC, only those with a score >= 4 had embolic events. There was no difference in the incidence rate of embolism between patients with AF treated with vitamin K antagonists (VKAs) (n = 322) and those treated with direct oral anticoagulants (DOACs) (n = 239) (p = 0.66). Conclusions Embolic events were a frequent complication in ATTR-CM. OAC reduced the risk of systemic embolism. Embolic rates did not differ with VKAs and DOACs. The CHA(2)DS(2)-VASc score did not correlate well with clinical outcome in ATTR-CM and should not be used to assess thromboembolic risk in this population.
2022
Vilches, S., Fontana, M., Gonzalez‐Lopez, E., Mitrani, L., Saturi, G., Renju, M., et al. (2022). Systemic embolism in amyloid transthyretin cardiomyopathy. EUROPEAN JOURNAL OF HEART FAILURE, 24(8), 1387-1396 [10.1002/ejhf.2566].
Vilches, Silvia; Fontana, Marianna; Gonzalez‐Lopez, Esther; Mitrani, Lindsey; Saturi, Giulia; Renju, Mary; Griffin, Jan M.; Caponetti, Angelo; Gnanasa...espandi
File in questo prodotto:
File Dimensione Formato  
European J of Heart Fail - 2022 - Vilches - Systemic embolism in amyloid transthyretin cardiomyopathy.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione - Non commerciale (CCBYNC)
Dimensione 614.04 kB
Formato Adobe PDF
614.04 kB Adobe PDF Visualizza/Apri
EJHF-24-1387-s001.docx

accesso aperto

Tipo: File Supplementare
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione - Non commerciale (CCBYNC)
Dimensione 30.34 kB
Formato Microsoft Word XML
30.34 kB Microsoft Word XML Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/958704
Citazioni
  • ???jsp.display-item.citation.pmc??? 9
  • Scopus 28
  • ???jsp.display-item.citation.isi??? 23
social impact