Abstract 15225: Remote Monitoring Using Implantable Cardiac Defibrillators for Heart Failure Management in a European Cohort: A Meta-analysis

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Fredrick M Ogugua ◽  
Abdulrahman Gamam ◽  
Basilio Addo ◽  
Kofi Osei

Introduction: Remote monitoring (RM) using implantable cardiac defibrillators (ICD) is a rapidly emerging alternative modality in heart failure management. Studies involving US cohorts have shown promising results with RM. We aim to perform a meta-analysis assessing the clinical outcomes of RM versus conventional follow-up among heart failure (HF) patients with an ICD in a European cohort. Methods: Electronic database and reference list searches were conducted to identify European studies assessing patient outcomes when managed with RM using ICD versus conventional follow up. After a review of abstracts and selected full-text articles, we identified four randomized trials (RCT) for inclusion. Quality was assessed using the Cochrane Risk of Bias Tool. The primary outcome was the incidence of HF hospitalization and the secondary outcome was all-cause mortality during the follow-up period. A random-effects model was used. All analysis was performed using Cochrane Revman version 5.3. Results: Four RCT’s were included, with a total of 4504 participants. Mean follow-up time was 22 months. Rate of HF hospitalization with RM was 678 versus 680 with conventional management (RR: 0.98, 95% CI: 0.88 to 1.10, p = 0.75). All-cause mortality with RM was 252 versus 284 with conventional management (RR: 0.88, 95% CI: 0.75 to 1.03, p =0.11). Conclusions: Our study found that in a European cohort, there was no difference in the incidence of HF hospitalization or all-cause mortality among patients managed with RM using ICD and those managed with conventional care. Further research is required to assess the feasibility and generalizability of HF management using ICD’s in different patient populations.

2019 ◽  
Author(s):  
Peter Bogyi ◽  
Mate Vamos ◽  
Zsolt Bari ◽  
Balazs Polgar ◽  
Balazs Muk ◽  
...  

BACKGROUND Remote monitoring is an established, guideline-recommended technology with unequivocal clinical benefits; however, its ability to improve survival is contradictory. OBJECTIVE The aim of our study was to investigate the effects of remote monitoring on mortality in an optimally treated heart failure patient population undergoing CRT-D implantation in a large-volume tertiary referral centre. METHODS The population of this single-centre, retrospective, observational study included 231 consecutive patients receiving CRT-D devices in the Medical Centre of the Hungarian Defence Forces (Budapest, Hungary) from January 2011 to June 2016. Clinical outcomes were compared between patients on remote monitoring and on conventional follow-up. RESULTS The average follow-up time was 28.4 ± 18.1 months. Patients on remote monitoring suffered more likely from atrial fibrillation, received heart failure management at our dedicated heart failure outpatient clinic more often, and had a slightly lower NYHA functional class. Crude all-cause mortality of remote-monitored patients was significantly lower compared to patients followed conventionally (HR: 0.368, 95% CI: 0.186-0.727, p=0.004). The survival benefit remained statistically significant after adjustment for important baseline parameters (adjusted HR: 0.361, 95% CI: 0.181-0.722, p=0.004) CONCLUSIONS In this current single-centre, retrospective study of optimally treated heart failure patients undergoing CRT-D implantation, the use of remote monitoring systems was associated with significantly better survival.


2021 ◽  
pp. 1-8
Author(s):  
Huiyang Li ◽  
Peng Zhou ◽  
Yikai Zhao ◽  
Huaichun Ni ◽  
Xinping Luo ◽  
...  

Abstract Objective: The aim of this meta-analysis was to investigate the association between malnutrition assessed by the controlling nutritional status (CONUT) score and all-cause mortality in patients with heart failure. Design: Systematic review and meta-analysis. Settings: A comprehensively literature search of PubMed and Embase databases was performed until 30 November 2020. Studies reporting the utility of CONUT score in prediction of all-cause mortality among patients with heart failure were eligible. Patients with a CONUT score ≥2 are grouped as malnourished. Predictive values of the CONUT score were summarized by pooling the multivariable-adjusted risk ratios (RR) with 95 % CI for the malnourished v. normal nutritional status or per point CONUT score increase. Participants: Ten studies involving 5196 patients with heart failure. Results: Malnourished patients with heart failure conferred a higher risk of all-cause mortality (RR 1·92; 95 % CI 1·58, 2·34) compared with the normal nutritional status. Subgroup analysis showed the malnourished patients with heart failure had an increased risk of in-hospital mortality (RR 1·78; 95 % CI 1·29, 2·46) and follow-up mortality (RR 2·01; 95 % CI 1·58, 2·57). Moreover, per point increase in CONUT score significantly increased 16% risk of all-cause mortality during the follow-up. Conclusions: Malnutrition defined by the CONUT score is an independent predictor of all-cause mortality in patients with heart failure. Assessment of nutritional status using CONUT score would be helpful for improving risk stratification of heart failure.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Monil Majmundar ◽  
Ashish Kumar ◽  
Rajkumar P Doshi ◽  
Palak shah ◽  
Mariam Shariff ◽  
...  

Introduction: The effect of anemia on outcomes in Heart failure with preserved ejection fraction (HFpEF) patients is not well-established. Some previous studies have shown increased mortality and hospitalizations in HFpEF patients with anemia. Hypothesis: We hypothesize that anemia affects all-cause mortality and hospitalization in HFpEF patients. Methods: A review of literature for studies comparing outcomes in HFpEF with and without anemia was done in PubMed, MEDLINE, and EMBASE databases through June 1st, 2020. The standard definitions of HFpEF and anemia were used for inclusion criteria. Two investigators extracted the study data independently. The primary outcome of interest was all-cause mortality. The secondary outcome was all-cause hospitalizations. We used the PM estimator of Tau with Knapp-Hartung adjustment to pool adjusted hazard ratio (HR) and 95% confidence interval (CI). P curve analysis was used to assess publication bias. R version 3.6.2 was used for all statistical analyses. Results: Seven studies (23,424 patients) were included in the final analysis. Anemia in patients with HFpEF was associated with higher rates of all-cause mortality [HR: 1.35, 95% CI: 1.17-1.55]. Additionally, anemia in HFpEF patients was associated with higher rates of all-cause hospitalization [HR: 1.22, 95% CI: 1.03-1.44]. P curve analysis for all-cause mortality didn’t report publication bias or P hacking (Figure) . Conclusions: Anemia in HFpEF patients was associated with higher rates of all-cause mortality and all-cause hospitalizations compared to HFpEF patients without anemia.


2021 ◽  
Author(s):  
Jihane Belayachi ◽  
Imane Katir ◽  
Rhita Nechba Bennis ◽  
Naoufel Madani ◽  
Redouane Abouqal

AbstractA critical review of the prognosis impact of malnutrition in patients admitted with acute heart failure (AHF) has never been performed. We systematically reviewed the observational epidemiology literature to determine the all-cause mortality (ACM) in undernourished patients with acute heart failure or at risk of malnutrition through a meta-analysis of observational studies.A systemic search using PubMed, Scopus, and Web of Science was done for articles reporting an association between malnutrition and mortality in patient with acute heart failure published before December 2019. Original data from observational cohort studies in patients with acute heart failure at baseline, and with nutritional state evaluation at admission using screening, or assessment tools. The outcome of interest was mortality independent of the timeframe for follow up. The characteristics of the included study were collected. Data quality assessment using the Newcastle Ottawa Quality Assessment Scale. The hazard ratios (HRs) and corresponding 95% confidence intervals (CIs) were extracted. For the meta-analysis, a random-effects model was considered.Heterogeneity between studies was assessed using Cochran Q statistics and I2 statistics. Subgroup analyses were used to identify the source of heterogeneity. A sensitive analysis was performed to reflect the influence of the individual data set on the pooled HR. Publication bias was detected using the Doi plot and Luis Furuya-Kanamori asymmetry index (LFK index). The influence of potential publication bias on results was explored by using the trim-and-fill procedure. To assess the risks of random errors, trial sequential analysis (TSA) was performed.Seven studies were eligible for review and meta-analysis. There were 9053 participants and over 1536 events occurred. The prevalence of malnutrition varied from 33% to 78.8%. Mean follow-up varied between 189 and 951 days. ACM rates varied between 7% and 42.6%. Nutritional status is significantly associated with mortality in patients with AHF (Pooled HR=1.15;95%CI[1.08-1.23]). Considerable between-study heterogeneity was observed (I2=83%, P=0.001). Heterogeneity was partially explained by the different tools used to screen malnutrition risk, and follow-up durations used by the included studies. There was evidence of major publication bias regarding the risk of malnutrition-related to ACM. The obtained LFK index was 6.12 and suggests major asymmetry. The recalculated pooled HR that incorporates the hypothetical missing studies is 1.15; 95%CI (1.08-1.22). However, the accumulating number of participants and the required information size has not yet been achieved. Then, the trial sequential monitoring boundary is inconclusive.This first meta-analysis of the association between nutritional status in patients with acute heart failure and all-cause mortality indicated that malnutrition risk in a patient with acute heart failure was associated with increased all-cause mortality. The prognosis impact of malnutrition is real despite heterogeneity in tools and cut off for defining malnutrition and mean follow up duration. This review underlines the peremptory need for multicenter studies, for uniform guidelines for assessing nutritional status, and for reporting guidelines for prognostic studies in an acute cardiovascular setting. Better nutritional practice to improve patient care is emphasized in international and national health care guidelines.


Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Deepakraj Gajanana ◽  
Abel Romero-Corral ◽  
Mahek Shah ◽  
Parichart Junpapart ◽  
Vincent M Figueredo ◽  
...  

Background: Past data suggest ischemic cardiomyopathy (ICM) is associated with worse prognosis when compared to non-ischemic cardiomyopathy(NICM). With advances in heart failure management, this relationship deserves a fresh look. We hypothesize that all cause mortality from NICM is lower when compared to ICM over five year period. Methods: We retrospectively studied consecutive heart failure patients with left ventricular ejection fraction(EF) less than 35% admitted to Einstein Medical Center Philadelphia between 01/01/2007 to 12/31/2007. Data pertaining to patient demographics and clinical characteristics were obtained. All cause mortality was obtained at 5 years using hazard ratio to account for time to event. Results: The final cohort consisted of 360 patients of which 63%(224 of 360) had NICM. Mean age was 61±16 years for NICM and 66±11 yrs for ICM. African Americans constituted 83%(185 of 224) of NICM and 59%(80 of 136) of ICM. The clinical characteristics are as shown in the table. There were 160 deaths over the follow up period. Age, CKD, dyslipidemia and EF were significant predictors of mortality. ICM cohort had 81 deaths out of 136(60%) as compared to 85 out of 185((39%) in NICM over the follow up period. However, when adjusted for age, DM, CKD and days of follow-up, there was no statistically significant difference in mortality between the two groups over the five year follow up period. Conclusions: In this study, there was no significant mortality difference between ICM and NICM. We also found that despite advances in heart failure management in the last two decades, in clinical practice they are under-utilized.


EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
G Cinier ◽  
MI Hayiroglu ◽  
AC Yumurtas ◽  
Z Kolak ◽  
T Cetin ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Background Implantable cardiac defibrillators (ICD’s) are recommended in patients with heart failure with reduced ejection fraction (HFrEF) of nonischemic etiology. Determining patients who are at high risk despite ICD implantation is of clinical value. Methods Between 2009-2019 patients who were implanted ICD due to nonischemic HFrEF were included to the present analysis. Baseline characteristics, laboratory parameters and echocardiographic findings were obtained from the electronic database. The primary outcome was all-cause mortality. Appropriate and inappropriate device therapies were also extracted from the database and was confirmed with patients’ reports. Predictors for long term all-cause mortality was determined by using Cox regression analysis. Results Overall, 1199 patients were screened and 238 were eligible for the analysis. ICD’s were implanted for primary and secondary prevention in 68 (28.6%) and 170 (71.4%) of patients respectively. Multivariate analysis revealed that increased pro-BNP [Hazard ratio (HR): 1.001, 95% Confidence interval (CI): 1.000 – 1.001, p = 0.024] and reduced left ventricle ejection fraction (HR: 0.950, 95% CI: 0.907 – 0.994, p: 0.026) predicted all-cause mortality during long term follow up. Pro-BNP > 425 pg/ml has sensitivity and specificity of 74% for each in predicting all-cause mortality. Conclusion Among patients who were implanted ICD for HFrEF of nonischemic etiology, higher pro-BNP prior to the implantation and lower LVEF predicted all-cause mortality during long term follow up. Table 1Univariate analysisP valueHR (95% CI)Multivariate analysisP valueHR (95% CI)Diabetes mellitus0.0062.587 (1.315 - 5.090)Diabetes mellitus0.1441.837 (0.812 - 4.153)Atrial fibrillation0.0023.080 (1.531 - 6.195)Atrial fibrillation0.1811.738 (0.774 - 3.903)NYHA > 20.0172.394 (1.168 - 4.908)NYHA > 20.2531.642 (0.701 - 3.847)RDW0.0441.191 (1.005 - 1.412)RDW0.6461.046 (0.862 - 1.270)Lymphocytes0.0220.616 (0.408- 0.932)Lymphocytes0.1650.683 (0.399 - 1.170)Blood urea nitrogen0.0381.015 (1.001- 1.030)Blood urea nitrogen0.1521.015 (0.995 - 1.036)Pro-BNP<0.0011.001 (1.000 - 1.001)Pro-BNP0.0241.001 (1.000 - 1.001)Albumin<0.0010.252 (0.143 - 0.444)Albumin0.0790.525 (0.256 - 1.079)Ejection fraction<0.0010.921 (0.885 - 0.959)Ejection fraction0.0260.950 (0.907 - 0.994)LVEDD0.0011.408 (1.017 - 1.079)LVEDD0.1521.078 (0.973 - 1.194)LVESD0.0041.038 (1.012 - 1.065)LVESD0.2890.957 (0.883 - 1.038)Appropriate shock in follow-up0.0102.407 (1.237 - 4.684)Appropriate shock in follow-up0.1561.768 (0.805 - 3.883)Univariate and multivariate Cox regression analyses for long-term mortality after ICD implantation Abstract Figure 1


2019 ◽  
Vol 39 (2) ◽  
Author(s):  
Shenghua Chen ◽  
Yangzhang Tang ◽  
Xueyin Zhou

AbstractCirculating cystatin C (cys-C/CYC) has been identified as an independent predictor of all-cause mortality in patients with coronary artery disease and the general population. This meta-analysis aimed to systematically evaluate the association between elevated cys-C level and all-cause mortality and rehospitalization risk amongst patients with heart failure (HF). PubMed and Embase databases were searched until December 2017. All prospective observational studies that reported a multivariate-adjusted risk estimate of all-cause mortality and/or rehospitalization for the highest compared with lowest cys-C level in HF patients were included. Ten prospective studies involving 3155 HF patients were included. Meta-analysis indicated that the highest compared with lowest cys-C level was associated with an increased risk of all-cause mortality (hazard ratio (HR): 2.33; 95% confidence intervals (CI): 1.67–3.27; I2 = 75.0%, P<0.001) and combination of mortality/rehospitalization (HR: 2.06; 95%CI: 1.58–2.69; I2 = 41.6%, P=0.181). Results of stratified analysis indicated that the all-cause mortality risk was consistently found in the follow-up duration, cys-C cut-off value or type of HF subgroup. Elevated cys-C level is possibly associated with an increased risk of all-cause mortality and rehospitalization in HF patients. This increased risk is probably independent of creatinine or estimated glomerular filtration rate (eGFR).


Author(s):  
Reagan F. Cabahug ◽  
Gina L. Montalan ◽  
Irma P. Yape ◽  
Maria Christina M. Laurenciana

Objective: To update Sagar et.al. systematic review and meta-analysis on exercise-based rehabilitation for heart failure. Methods: A systematic review and meta-analysis of randomized clinical trials on exercised-based cardiac rehabilitation. MEDLINE, OVID and cross references were searched for RCTs published between February 2013 up to August 2018. Trials with at least 6 months follow up were included if exercise training program alone or as a component of comprehensive cardiac rehabilitation was compared with groups without exercise prescription. Results: A total of 11,989 patients were included in the 43 randomized clinical trials predominantly with reduced EF and NYHA class ll -lll. Exercise training program prescription in heart failure patients reduced the all-cause mortality (RR=0.76; 95%CI= 0.66, 0.87; P= 0.001), all cause hospitalization after 12 months (RR=0.70; 95% CI= 0.52, 0.96; P= 0.02) rehospitalization due to heart failure (RR= 0.49; 95% CI= 0.44, 0.55; P= <0.0001) and improvement in quality-of-life scores (RR= -0.36; 95% CI= -0.58, -0.14; P= 0.002). Among these health quality related outcomes, the all-cause mortality and the hospitalization admission after 12 months follow up showed a significant association with exercise therapy program, particularly on exercise setting(p=0.026) and exercise dose (p=0.013), respectively, as revealed by the univariate meta-regression results. Conclusion: This study has shown that exercise therapy either in center or home based has benefited heart failure patients in reducing the risk of all-cause mortality up to 12 months, hospital admission up 12 months, and has given a better quality of life. The new studies included have further strengthened the findings of previous studies that an exercise therapy program provides benefit to heart failure patients, either as an “alone” intervention or together with a cardiac rehabilitation program; and that the setting and dose of an exercise therapy program provide significant contribution to a reduced risk in all-cause mortality and hospitalization after 12 months follow up, respectively.


BMJ Open ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. e021252 ◽  
Author(s):  
Xiaoming Zhang ◽  
Conghua Wang ◽  
Qingli Dou ◽  
Wenwu Zhang ◽  
Yunzhi Yang ◽  
...  

ObjectivesThis study aims to review the evidence of sarcopenia as a predictor of all-cause mortality among nursing home residents.DesignSystematic review and meta-analysis of observational cohort studies.Data sourcesPubMed, EMBASE and the Cochrane Library databases were searched for relevant articles.ParticipantsNursing home residents.Primary and secondary outcome measuresAll-cause mortality.Data analysisSummary-adjusted HRs or risk ratios (RRs) were calculated by fixed-effects model. The risk of bias was assessed by Newcastle-Ottawa Scale.ResultsOf 2292 studies identified through the systematic review, six studies (1494 participants) were included in the meta-analysis. Sarcopenia was significantly associated with a higher risk for all-cause mortality among nursing home residents (pooled HR 1.86, 95% CI 1.42 to 2.45, p<0.001, I2=0). In addition, the subgroup analysis demonstrated that sarcopenia was associated with all-cause mortality (pooled HR 1.87,95% CI 1.38 to 2.52, p<0.001) when studies with a follow-up period of 1 year or more were analysed; however, this was not found for studies with the follow-up period less than 1 year. Furthermore, sarcopenia was significantly associated with the risk of mortality among older nursing home residents when using bioelectrical impedance analysis to diagnosis muscle mass (pooled HR 1.88, 95% CI 1.39 to 2.53, p<0.001); whereas, it was not found when anthropometric measures were used to diagnosis muscle mass.ConclusionSarcopenia is a significant predictor of all-cause mortality among older nursing home residents. Therefore, it is important to diagnose and treat sarcopenia to reduce mortality rates among nursing home residents.PROSPERO registration numberCRD42018081668


2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Ramy Mando ◽  
Akshay Goel ◽  
Fuad Habash ◽  
Marwan Saad ◽  
Karam Ayoub ◽  
...  

Background. Cardiac contractility modulation (CCM) is a device therapy for systolic heart failure (HF) in patients with narrow QRS. We aimed to perform an updated meta-analysis of the randomized clinical trials (RCTs) to assess the efficacy and safety of CCM therapy. Methods. We conducted a systematic review and meta-analysis of randomized clinical trials (RCTs) between January 2001 and June 2018. Outcomes of interest were peak oxygen consumption (peak VO2), 6-Minute Walk Distance (6MWD), Minnesota Living with Heart Failure Questionnaire (MLHFQ), HF hospitalizations, cardiac arrhythmias, pacemaker/ICD malfunctioning, all-cause hospitalizations, and mortality. Data were expressed as standardized mean difference (SMD) or odds ratio (OR). Results. Four RCTs including 801 patients (CCM n = 394) were available for analysis. The mean age was 59.63 ± 0.84 years, mean ejection fraction was 29.14 ± 1.22%, and mean QRS duration was 106.23 ± 1.65 msec. Mean follow-up duration was six months. CCM was associated with improved MLWHFQ (SMD -0.69, p = 0.0008). There were no differences in HF hospitalizations (OR 0.76, p = 0.12), 6MWD (SMD 0.67, p = 0.10), arrhythmias (OR 1.40, p = 0.14), pacemaker/ICD malfunction/sensing defect (OR 2.23, p = 0.06), all-cause hospitalizations (OR 0.73, p = 0.33), or all-cause mortality (OR 1.04, p = 0.92) between the CCM and non-CCM groups. Conclusions. Short-term treatment with CCM may improve MLFHQ without significant difference in 6MWD, arrhythmic events, HF hospitalizations, all-cause hospitalizations, and all-cause mortality. There is a trend towards increased pacemaker/ICD device malfunction. Larger RCTs might be needed to determine if the CCM therapy will be beneficial with longer follow-up.


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