scholarly journals The North American experience with the Ablate and Pace Trial (APT) for medically refractory atrial fibrillation

EP Europace ◽  
1999 ◽  
Vol 1 (1) ◽  
pp. 22-25 ◽  
Author(s):  
M. A. Wood ◽  
G. N. Kay ◽  
K. A. Ellenbogen

Abstract The Ablate and Pace Trial (APT) was a prospective registry study of clinical outcomes and survival following ablation and pacing therapy for medically refractory atrial fibril-lation. One hundred and fifty-six patients were enrolled at 16 centres in North America. The mean patient age was 66±11 years, with mean left ventricular ejection fraction of 48%±18%. Seventy-eight percent of the patients had structural heart disease. During one year of follow up, multiple measures of quality-of-life showed significant and sustained improvement following ablation and pacing therapy. Also, left ventricular ejection increased significantly for patients with baseline left ventricular ejection fraction <45%. Metabolic exercise testing showed trends toward improved exercise tolerance; however, these did not achieve statistical significance. The one year overall survival was 85%, with 3% of patients experiencing sudden death. In summary, this large, non-randomized, trial showed significant improvement in quality of life and left ventricular function following ablation and pacing therapy. Ablation and pacing therapy is a viable strategy for palliative management of patients with medically refractory, highly symptomatic atrial fibrillation.

2019 ◽  
Vol 16 (3) ◽  
pp. 24-28
Author(s):  
Svetlana N Nedvetskaia ◽  
Iosif Z Shubitidze ◽  
Vitalii G Tregubov ◽  
Vladimir M Pokrovskiy

Aim. To determine effectiveness of combination therapy with lisinopril and fosinopril in patients with chronic heart failure (CHF) with preserved left ventricular ejection fraction (LV EF), considering its impact on the regulatory and adaptive capabilities organism. Materials and methods. 80 patients were examined with CHF II functional class with preserved systolic function of the left ventricle (left ventricular ejection fraction ≥50%) (classification of the New York Heart Association) in the presence of hypertension disease (HD) III stage and/or ischemic heart disease (IHD). Randomly divided into two equal groups. In the first group was appointed for treatment with lisinopril (the average dose was 14.0±3.8 mg/day), in the second group - fosinopril (the average dose - 14.7±4.2 mg/day). All patients were prescribed nebivolol (7.1±2.2 mg/day and 6.8±2.1 mg/day). Depending on the concomitant pathology were appointed acetylsalicylic acid in the intestinal shell (100 mg/day, n=9 and 100 mg/day, n=10) and atorvastatin (15.3±4.9 mg/day, n=15 and 16.5±4.8 mg/day, n=17). Initially and after six months later of combined pharmacotherapy studied: a quantitative assessment of regulatory and adaptive capabilities of the organism, echocardiography, treadmill test, six-minute walk test, determination in blood plasma of the N-terminal precursor of the natriuretic brain peptide level, all-day monitoring of blood electrocardiograms and pressure. The quality of life was also assessed using a questionnaire. Results. Both treatment regimens of patients equally improved the structural and functional parameters of the heart, reduced neurohumoral activity, optimized heart rate and pulse. In this case, treatment with fosinopril is more pronounced positively regulatory-adaptive capacity and tolerance to physical load, and also there was an improvement in the quality of life. Conclusion. In patients with CHF with preserved LV EF, in the presence of HD and/or IHD combined pharmacotherapy with fosinopril in comparison with lisinopril probably is preferable due to the more pronounced increase in regulatory and adaptive capabilities.


Kardiologiia ◽  
2021 ◽  
Vol 61 (7) ◽  
pp. 22-27
Author(s):  
S. N. Tereschenko ◽  
N. B. Perepech ◽  
I. A. Cheremisina ◽  
V. N. Belov ◽  
Y. A. Vollis ◽  
...  

Aim      Improvement of quality of life is one of the most important goals for the treatment of patients with chronic heart failure (CHF). This study searched for ways to increase the efficiency of CHF treatment based on parameters of quality of life in CHF patients during and after the treatment with exogenous phosphocreatine (EP).Material and methods  The effect of a single course of EP treatment on quality of life of patients with functional class (FC) II-IV CHF with reduced or mid-range left ventricular ejection fraction was studied as a part of the all-Russia prospective observational study BYHEART. The presence of FC II-IV CHF and a left ventricular ejection fraction <50 % were confirmed by results of 6-min walk test (6MWT) and findings of echocardiography after stabilization of the background therapy.Results An interim data analysis showed that the course of EP treatment was associated with a significant improvement of quality-of-life indexes as determined by the Minnesota Living with Heart Failure Questionnaire (LHFQ) total score. These indexes significantly increased and remained at a satisfactory level for 6 mos. following completion of the treatment course. Also, the treatment significantly beneficially influenced the clinical condition of patients (heart failure severity scale), results of 6MWT, and the increase in left ventricular ejection fraction.Conclusion      The conclusions based on results of the interim analysis should be confirmed by results of the completed study. Complete results are planned to be published in 2022.


2021 ◽  
Vol 23 (1) ◽  
pp. 24-31
Author(s):  
V. B. Shatylo ◽  
L. A. Bodretska ◽  
I. S. Shapovalenko ◽  
H. P. Voinarovska ◽  
Zh. S. Butynets

The aim: to study the effect of add-on pentoxifylline therapy on the structural and functional indicators of the heart state, endothelial function, quality of life and physical abilities in patients with chronic heart failure with preserved left ventricular ejection fraction. Materials and methods. The indicators of the structural and functional state of the heart, endothelial function, quality of life and physical abilities of patients older than 60 years, who were followed-up in the Department of Cardiology of the State Institution “D. F. Chebotarev Institute of Gerontology of the NAMS of Ukraine”, based on 67 case histories, 37 of them were prescribed pentoxifylline as add-on therapy to the standard therapeutic regimen. Statistical data were calculated using modern application packages, in particular SPSS v.22, Statistica 7.0, MedCalc statical software v.11.5.0.0. The significance level was assessed using paired and unpaired Student's t-test with Bonferroni corrections, and the correlation and two-way analysis of variance were performed. Results. A significant additional effect of pentoxifylline treatment on the indicators of maximum blood flow in the forearm microvessels in response to the reactive hyperemia test, which characterizes the ability of the microvessel endothelium to synthesize relaxation factors, was detected. Patients who additionally received pentoxifylline showed significantly better indicators of left ventricular myocardial relaxation and reduction of hypertrophy than those on the standard therapy. There was a significant increase in walking distance in the third year of treatment in the patients who additionally received pentoxifylline. There was no difference in the impact on the quality of life of the patients. Conclusions. The addition of pentoxifylline to the standard therapy in patients with chronic heart failure with preserved left ventricular ejection fraction significantly reduces myocardial hypertrophy, improves diastolic relaxation, increases volumetric blood flow velocity in microvessels mediating reactive hyperemia, which may contribute to further stabilizing the clinical course of the disease and increasing 6-minute walking distance. The presented data are an additional evidence of pathogenetically reasonable therapy with pentoxifylline in patients with chronic heart failure with preserved left ventricular ejection fraction, which allows us to consider this drug as potentially promising for the routine treatment of such patients.


2021 ◽  
Vol 10 (9) ◽  
pp. 1829
Author(s):  
Marcin Wełnicki ◽  
Iwona Gorczyca ◽  
Wiktor Wójcik ◽  
Olga Jelonek ◽  
Małgorzata Maciorowska ◽  
...  

Background: Hyperuricemia is an established risk factor for cardiovascular disease, including atrial fibrillation (AF). The prevalence of hyperuricemia and its clinical significance in patients with already diagnosed AF remain unexplored. Methods: The Polish Atrial Fibrillation (POL-AF) registry includes consecutive patients with AF hospitalized in 10 Polish cardiology centers from January to December 2019. This analysis included patients in whom serum uric acid (SUA) was measured. Results: From 3999 POL-AF patients, 1613 were included in the analysis. The mean age of the subjects was 72 ± 11.6 years, and the mean SUA was 6.88 ± 1.93 mg/dL. Hyperuricemia was found in 43% of respondents. Eighty-four percent of the respondents were assigned to the high cardiovascular risk group, and 45% of these had SUA >7 mg/dL. Comparison of the extreme SUA groups (<5 mg/dL vs. >7 mg/dL) showed significant differences in renal parameters, total cholesterol concentration, and left ventricular ejection fraction (EF). Multivariate regression analysis showed that SUA >7 mg/dL (OR 1.74, 95% CI 1.32–2.30) and GFR <60 mL/min/1.73 m2 (OR 1.94, 95% CI 1.46–2.48) are significant markers of EF <40% in the study population. Female sex was a protective factor (OR 0.74, 95% CI 0.56–0.97). The cut-off point for SUA with 60% sensitivity and specificity indicative of an EF <40% was 6.9 mg/dL. Conclusions: Although rarely assessed, hyperuricemia appears to be common in patients with AF. High SUA levels may be a significant biomarker of reduced left ventricular EF in AF patients.


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