Clinical and prognostic relevancy of left ventricular trabeculation assessed by cardiac magnetic resonance in patients with dilated cardiomyopathy
| Autor: | Joanna Petryka, Łukasz Mazurkiewicz, Jacek Grzybowski, Mateusz Śpiewak, Anna Jasińska, Ewelina Jarmus, Barbara Miłosz-Wieczorek, Magdalena Marczak, Łukasz A. Małek, Jolanta Misko |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Cardiomyopathy Dilated Male Cardiac function curve medicine.medical_specialty medicine.drug_class Heart Ventricles 030204 cardiovascular system & hematology Ventricular Dysfunction Left Young Adult 03 medical and health sciences 0302 clinical medicine Internal medicine Natriuretic Peptide Brain Natriuretic peptide medicine Humans In patient 030212 general & internal medicine Ejection fraction business.industry Healthy subjects Dilated cardiomyopathy Middle Aged Prognosis medicine.disease Magnetic Resonance Imaging Peptide Fragments Heart failure Cardiology Cardiology and Cardiovascular Medicine business Cardiac magnetic resonance Follow-Up Studies |
| Zdroj: | Kardiologia Polska. 75:794-803 |
| ISSN: | 1897-4279 0022-9032 |
| DOI: | 10.5603/kp.a2017.0097 |
| Popis: | Background and aim: We sought to search for factors associated with the magnitude of trabeculation by cardiac magnetic resonance, and evaluate the impact of trabeculations on outcomes in patients with dilated cardiomyopathy (DCM). Methods: We evaluated clinical profiles and outcomes of 276 subjects with DCM (age: 33.2 ± 13.3 years, 160 males). Trabeculation was quantified as trabeculated/total myocardial mass ratio (TM/M). Subjects were stratified into three subgroups (A, B, and C) according to the tertiles of rising TM/M values (33% ranges). A group of 30 healthy subjects served as controls. Patients were prospectively followed-up in search of major adverse cardiovascular events for 2.4 years on average (range 0.2–3.9 years). Results: Dilated cardiomyopathy patients had more trabeculation than controls (27.1 ± 16.9% vs. 17.3 ± 8.1, p < 0.01). Group C subjects had lowest N-terminal pro-B-type natriuretic peptide (NT-proBNP) (1445 [984–3843] vs. 873 [440–2633] vs. 529 [206–1221] pg/mL, p < 0.01), higher ejection fraction (23.9 ± 10.4 vs. 25.0 ± 9.2 vs. 32.4 ± 2.7%, p = 0.03), and lower left ventricular mass index (LVMI) (91.3 ± 21.5 vs. 74.3 ± 31.1 vs. 55.7 ± 23.2 g/m2, p < 0.01). They also had fewer areas of late gadolinium enhancement (69 [46.3%] vs. 31 [38.2%] vs. 15 [32.6%], p = 0.01). Male sex (b = 0.21, SE = 0.13; p = 0.01), LVMI (b = –0.32, SE = 0.08, p < 0.01) and NT-proBNP (b = –0.05, SE = 0.02, p = 0.02) were independently related to TM/M. The magnitude of trabeculation was not a predictor of major adverse cardiovascular events. Prognosis was impacted by left ventricular end-diastolic volume index only (HR 2.538, 95% CI –1.734–3.218, p < 0.01). Conclusions: Trabeculation patterns relate to cardiac function and neurohormonal activation but not to survival. |
| Databáze: | OpenAIRE |
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