7 research outputs found

    Atrial fibrillation as a prognostic factor in patients with systolic heart failure

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    Background: Atrial fibrillation (AF) decreases left ventricular stroke volume, impaires the mechanical function of heart valves, and disturbes neurohumoral activity of the miocardium. This study evaluated the influence of AF on clinical presentation and long-term follow-up of the patients with systolic heart failure. Methods: A retrospective analysis of the data on clinical presentation of 152 patients (38 women and 114 men) with systolic heart failure (EF < 40%) was performed. The following parameters were compared between patients with and without AF: heart rate and presence of LBBB, several echocardiographic parameters (EF, LVEDV, size of LA, LVEDd, LVESd), oxygen consumption per minute, and frequency of end-point&#8217;s (death, stroke, rehospitalization, CABG) during mean 936-day follow-up. Results: The 53 (35%) AF patients in comparison with 99 non-AF were characterized by: lower exercise performance (VO2max = 10.9 vs. 17.2 ml/kg/min), greater diameter of the left atrium (49.9 vs. 45.9 mm) and decreased end-diastolic volume (LVEDV = 159.5 vs. 183.7 ml), less frequent occurrence of LBBB (7.5% vs. 13.0%), higher overall mortality (28.3% vs. 17.1%), and more frequent rehospitalizations (15% vs. 8%). In patients with persistent AF (40%) with HR < 75/min the mortality was 29% and was statistically significantly lower than in patients with HR > 75/min in whom it was 54%. Conclusions: Atrial fibrillation in patients with systolic heart failure is a disadvantageous, but not independent risk factor. In patients with persistent atrial fibrillation the control of heart rate < 75/min was associated with significant decrease in mortality

    Migotanie przedsionk贸w jako czynnik prognostyczny u chorych ze skurczow膮 niewydolno艣ci膮 serca

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    Wst臋p: Migotanie przedsionk贸w (AF) jest cz臋stym powik艂aniem chor贸b serca. Powoduje obni偶enie rzutu lewej komory, upo艣ledza funkcj臋 mechaniczn膮 zastawek serca, zaburza czynno艣膰 neurohumoraln膮 miokardium. W niniejszej pracy oceniono wp艂yw AF na obraz kliniczny i odlegle losy chorych ze skurczow膮 niewydolno艣ci膮 serca. Metody: Przeprowadzono retrospektywn膮 analiz臋 statystyczn膮 danych z obrazu klinicznego 152 pacjent贸w (38 K i 114 M) ze skurczow膮 niewydolno艣ci膮 serca (EF < 40%). Obecno艣膰 AF w trakcie obserwacji oraz w wywiadzie pozwoli艂a podzieli膰 chorych na 2 grupy (z AF oraz bez AF). W grupach por贸wnano wyj艣ciowo m.in. niekt贸re parametry elektrokardiograficzne (HR, LBBB), echokardiograficzne (EF, LVEDV, wymiar LA, LVEDD, LVESD), a tak偶e maksymalne minutowe zu偶ycie tlenu w te艣cie spiroergometrycznym oraz cz臋sto艣ci wyst膮pienia punkt贸w ko艅cowych badania (zgonu, udaru m贸zgu, powt贸rnych hospitalizacji, zabieg贸w CABG). 艢redni czas obserwacji wyni贸s艂 936 dni. Wyniki: 艢rednia wieku chorych wynios艂a 65 lat. Pacjenci z AF (53 osoby; 35%; 艣r. 69 lat) w por贸wnaniu z grup膮 bez AF (99 os贸b; 艣r. 62 lata) charakteryzowali si臋: gorsz膮 wydolno艣ci膮 wysi艂kow膮 miokardium (VO2 max = 10,9 ml/kg/min vs. 17,2 ml/kg/min); wi臋kszym wymiarem lewego przedsionka (49,9 mm vs. 45,9 mm) oraz mniejsz膮 obj臋to艣ci膮 ko艅coworozkurczow膮 (LVEDV = 159,5 ml vs. 183,7 ml); rzadszym wsp贸艂wyst臋powaniem LBBB (7,5% vs. 13%); wi臋ksz膮 og贸ln膮 艣miertelno艣ci膮 (28,3% vs. 17,1%); cz臋stsz膮 konieczno艣ci膮 powt贸rnych hospitalizacji (15% vs. 8%). U chorych z przetrwa艂ym AF (40%), u kt贸rych utrzymano HR poni偶ej 75/min, 艣miertelno艣膰 wynios艂a 29% i by艂a istotnie statystycznie mniejsza ni偶 w przypadku pacjent贸w z HR powy偶ej 75/min, dla kt贸rych wynosi艂a 54%. Wnioski: Migotanie przedsionk贸w w grupie chorych ze skurczow膮 niewydolno艣ci膮 serca jest niekorzystnym, chocia偶 nie niezale偶nym czynnikiem rokowniczym. U chorych z przetrwa艂ym migotaniem przedsionk贸w kontrola cz臋sto艣ci kom贸r powy偶ej 75/min wi膮za艂a si臋 z istotnym zmniejszeniem 艣miertelno艣ci

    Association of serum levels of lipoprotein A-I and lipoprotein A-I/A-II with high on-treatment platelet reactivity in patients with ST-segment elevation myocardial infarction

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    Objective: High-density lipoproteins (HDLs) are a very heterogeneous group of particles. Little is known about the impact of their subfractions including lipoprotein A-I (LpA-I) and lipoprotein A-I/A-II (LpA-I/A-II) on platelet function and high on-treatment platelet reactivity (HPR), particularly in the acute phase of ST-segment elevation myocardial infarction (STEMI). The aim of the study was to evaluate the relationship between serum levels of LpA-I and LpA-I/A-II and HPR in STEMI patients. Methods: Fifty-two consecutive STEMI patients (26.9% women, mean age 60.6卤9.1 years) were enrolled into this study. Clinical and demographic data were collected and HDL subfractions were measured by rocket immunoelectrophoresis. Platelet reactivity was assessed using light transmission aggregometry and quantitative flow cytometry. Results: We found a positive correlation between platelet aggregation after both ADP-5 and ADP-20 stimulation and serum level of LpA-I. Compared with subjects with satisfactory platelet response to clopidogrel, patients with HPR had 32.44% higher serum level of LpA-I (p=0.021). On the other hand, patients with HPR assessed by ADP-5 stimulation had 22.13% lower serum level of LpA-I/A-II (p=0.040). Regression analysis showed that LpA-I [odds ratio (OR) 1.03; 95% confidence interval (CI) 1-1.07; p=0.049] and current smoking (OR 0.18; 95% CI 0.04-0.81; p=0.025) were independent predictors of HPR. With receiver operating characteristic (ROC) curve analysis, we designated the cut-off point at serum level of 57.52 mg/dL for LpA-I for predicting HPR (AUC=0.71, p=0.010). Conclusion: This study showed that higher serum level of LpA-I measured in the acute phase of STEMI is an independent risk factor for HPR. Our study is the first to demonstrate an important and distinct activity of LpA-I and LpA-I/A-II that can prove pleiotropic and different functions of HDL subfractions in acute STEMI. (Anatol J Cardiol 2018; 19: 374-81

    Recurrence of tricuspid regurgitation in a patient with a rheumatic fever after mitral valve implantation with concomitant tricuspid valve annuloplasty

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    A case of a 62-year-old female with a recurrence of tricuspid regurgitation is presented. This complication occurred after mitral valve implantation and tricuspid valve annuloplasty. Diagnosis and treatment of this condition following rheumatic fever are discussed

    Chorzy trudni nietypowiPonowna niedomykalno艣膰 zastawki tr贸jdzielnej u chorej po operacji wszczepienia zastawki mitralnej i jednoczesnej plastyce zastawki tr贸jdzielnej w przebiegu gor膮czki reumatycznej

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    A case of a 62-year-old female with a recurrence of tricuspid regurgitation is presented. This complication occurred after mitral valve implantation and tricuspid valve annuloplasty. Diagnosis and treatment of this condition following rheumatic fever are discussed
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