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Prognostic value of nutritional status in post-implant CRT outcomes in patients with chronic heart failure
Session:
Posters (Sessão 3 - Écran 1) - Resincronização cardíaca
Speaker:
Liliana Sofia Gonçalves Brochado
Congress:
CPC 2023
Topic:
C. Arrhythmias and Device Therapy
Theme:
09. Device Therapy
Subtheme:
09.3 Cardiac Resynchronization Therapy
Session Type:
Pósters Electrónicos
FP Number:
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Authors:
Liliana Brochado; Elisabeth Santos; Filipa Rosas; Mariana Brandão; Ana Mosalina Manuel; João Goncalves Almeida; Helena Gonçalves; Marco Oliveira; João Primo; Paulo Fonseca; Ricardo Fontes-Carvalho; Adelino Leite-Moreira
Abstract
<p>Introduction: There’s a close relationship between chronic heart failure (CHF) and malnutrition, and their main pathophysiological modifications are well known. Cardiac resynchronization therapy (CRT) has proven to be a promising therapy in symptomatic heart failure (HF) patients with broad QRS complexes and impaired systolic function with optimized medical therapy. However, there is still a considerable amount of non-responder patients. The role of nutritional status in CRT therapy response has yet still not been well assessed. <br /> <br /> Purpose: Assess the prognostic value of nutritional status in post-op outcomes in patients with Chronic Heart Failure and CRT<br /> <br /> Methods: Single-center retrospective study of patients submitted to CRT implantation between January 2007 and march 2021. Inclusion criteria were patients meeting criteria for CRT implantation, QRS duration ≥ 120ms, FEVE ≤ 35%, NYHA class II–IV and no adverse events during the follow up. Primary outcomes measured were all-cause mortality, cardiovascular mortality, and hospitalizations due to HF in a 1-year follow-up. To evaluate patient's nutritional status the CONUT score was used with patients being categorized in 2 groups: Low CONUT (Score 0-4: normal/low malnutrition) and Hight CONUT (Score 5-12: moderate/severe malnutrition). <br /> <br /> Results: 198 patients (83%) exhibited Low CONUT status, and 41 patients (17%) exhibited High CONUT status. Patients with Hight CONUT were older (72.9 yrs vs 65.9 yrs, p<0.001), and exhibited higher percentage of chronic obstructive pulmonary disease (43.9% vs 27.3%, p=0.004), atrial fibrillation (72.9%, vs 25.3%, p<0.001), hypertension (78.1% vs 60.6%, p=0.038), chronic kidney disease (39.1% vs 21.2%, p=0.016) and NYHA IV (19.5% vs 5.1%, p<0.001). Cardiovascular mortality was 3.7% in the low CONUT group vs 29.3% in the Hight CONUT group (p<0.001; HR, 0.12; 95% CI, 0.05-0.29) and total HF hospitalizations were 16 and43, respectively (p=0.013; HR, 0.482, 95% CI, 0.27 to 0.86). The nutritional status prior to CRT assessed by the CONUT score showed to be an independent predictor of cardiovascular mortality (p=0.007; HR, 0.16 95% CI, 0.04-0,60). <br /> <br /> Conclusion: Malnutrition was a common condition in our CRT patients showing that deficient nutrition status remains highly underdiagnosed. Patients with worse nutritional status before CRT device implantation presented higher morbidity and were more prone to worst outcomes such as cardiovascular mortality and mortality by all causes as well as higher incidence of hospitalizations secondary to HF decompensation. Assessment of nutritional status using screening tools may provide additional prognostic information in patients with HF and help early identification of those who may benefit from further assessment and nutritional intervention.</p>
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