Abstract 309: Is Right Bundle Branch Block Associated with Poor Outcomes in the Setting of an Acute Coronary Syndrome? A Systematic Review and Meta-analysis

2014 ◽  
Vol 7 (suppl_1) ◽  
Author(s):  
Ahmad Hazem ◽  
Sunita Sharma ◽  
Amit Sharma ◽  
Cameron Leitch ◽  
Roopalakshmi Sharadanant ◽  
...  
Keyword(s):  
Systematic Review ◽  
Acute Coronary Syndrome ◽  
Right Bundle Branch Block ◽  
Risk Ratio ◽  
Meta Analysis ◽  
Forest Plot ◽  
Bundle Branch Block ◽  
Coronary Syndrome ◽  
All Cause Mortality

Importance: Up to 10% of patients with acute myocardial infarction (AMI) have right bundle branch block (RBBB), and RBBB has been associated with a higher risk of mortality. We performed a systematic review and meta-analysis to determine the prognostic significance of RBBB for patients with AMI. Acute coronary syndrome (ACS) Data Sources: We have systematically searched Ovid, Scopus and Web of Science through January 2014. Study Selection: Reviewers working independently and in duplicate screened all eligible abstracts, selecting studies that described all-cause mortality or cardiovascular death in patients with RBBB and suspected ACS. We excluded studies that reported unadjusted outcomes. Knowledge synthesis: We pooled risk ratio with hazard ratio in studies reporting those outcomes. When reported, odds ratio was converted into risk ratio using reported event rate in each study’s unexposed -read: non RBBB- group. Main Outcomes: All-cause mortality and cardiovascular mortality (death). Results: Eighteen studies were found that reported eligible data. All were observational studies, involving over 89,000 patients. In short-term follow up (up to 30 days), RBBB on presentation was associated with higher all-cause mortality rate, compared to patients without RBBB (RR 2.23, 95% CI 1.76-2.82). There was a trend for higher mortality at long-term follow up (range: 6 months-16 years) that did not reach statistical significance (RR 1.45, 95% CI 0.93-2.25). Figure-1 demonstrates the forest plot. Risk of bias was assessed with the Newcastle-Ottawa scale and majority of included studied were deemed moderate to high quality. Conclusion and Relevance: RBBB is associated with a more than 2-fold higher risk of all-cause mortality in patients with AMI at 30 days follow up. Patients with AMI and RBBB represent a high risk group for adverse outcomes. A sentence on the differential findings for new vs. old RBBB and association with outcomes could follow here.

P5524Influence of bundle branch block in the long-term outcome of patients with acute coronary syndrome

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
J M Garcia Acuna ◽  
A Cordero Fort ◽  
A Martinez ◽  
P Antunez ◽  
M Perez Dominguez ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Acute Coronary Syndrome ◽  
Right Bundle Branch Block ◽  
Coronary Revascularization ◽  
Bundle Branch Block ◽  
Coronary Syndrome ◽  
Worse Prognosis

Abstract The new European Society of Cardiology guideline for ST-segment elevation myocardial infarction recommends that left and right bundle branch block should be considered equal for recommending urgent angiography in patients with suspected myocardial infarction. This consideration is not taken into account in the management of patients with coronary syndrome without ST elevation (NSTEMI). We evaluate the evolution of patients with acute coronary syndrome and long-term bundle branch block. Patients and methods We included 8771 patients admitted to two tertiary hospitals between 2003 and 2017 with an acute coronary syndrome, 5673 NSTEMI (64.3%) and 3098 STEMI (35.7%). All patients had an ECG recorded immediately upon admission. Patients were classified as having right bundle branch block (RBBB), left bundle branch block (LBBB). Long-term follow-up was performed (median 55 months) to assess mortality. Results A total of 8771 patients were included with a mean age of 66.1 years, 72.5% males, 4.1% (362) with LBBB and 5% (440) with RBBB. Patients with BBB were older, with more previous history of myocardial infarction and coronary revascularization and higher prevalence of cardiovascular risk factors. Medical treatment was similar but they were less often submitted to angioplasty. During the acute phase, patients with RBBB and LBBB presented a higher rate of heart failure than those without branch block (4.8% vs 9.1% vs 3.5%, p=0.0001); higher mortality (8.4% vs 10.5% vs 3.0%, p=0.0001); higher stroke rate (2.5% vs 1.4% vs 0.8%, p=0.001); higher rate of renal failure (8.2% vs 9.7% vs 3.9%, p=0.0001) and higher rate of reinfarction (3.0% vs 4.1% vs 1.7%, p=0.001). Patients who had a RBBB or an LBBB had a worse prognosis throughout the follow-up. Heart failure was present in 17.7% of the group with RBBB, 29.6% of LBBB and 11% in the group without branch block (p=0.0001). Mortality during follow-up was 31% in RBBB, 40.6% in LBBB and 18.7% without branch block (p=0.0001). In multivariate analysis of Cox, both RBBB (HR 1.55, 95% CI 1.23–1.98, p=0.0001) and LBBB (HR 1.48, 95% CI 1.22–1.53, p=0.001) were an independent predictors of all-cause mortality (adjustment for GRACE score, gender, treatment with betablockers, angiotensin conversor enzym inhibitors, statin and coronary revascularization). Cox regression model multivariate Conclusions The presence of RBBB or LBBB in the ECG of patients with an ACS is associated with a worse prognosis both during the hospital phase and in the long term. In addition, both bundle branch blocks are independent predictors of long-term mortality in patients with ACS.

Association Between Metabolic Syndrome and All-Cause Mortality in Patients with Acute Coronary Syndrome: A Meta-Analysis

2021 ◽  
Author(s):  
Yong Yang ◽  
Haili Shen ◽  
Zhigeng Jin ◽  
Dongxing Ma ◽  
Qing Zhao ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Acute Coronary Syndrome ◽  
Hospital Mortality ◽  
Meta Analysis ◽  
Survival Outcome ◽  
Coronary Syndrome ◽  
Increased Risk ◽  
All Cause Mortality

AbstractThe association between metabolic syndrome (MetS) and survival outcome after acute coronary syndrome (ACS) remains controversial. This meta-analysis sought to examine the association of MetS with all-cause mortality among patients with ACS. Two authors independently searched PubMed and Embase databases (from their inception to June 27, 2020) for studies that examined the association of MetS with all-cause mortality among patients with ACS. Outcome measures were in-hospital mortality and all-cause mortality during the follow-up. A total of 10 studies involving 49 896 ACS patients were identified. Meta-analysis indicated that presence of MetS was associated with an increased risk of long-term all-cause mortality [risk ratio (RR) 1.25; 95% CI 1.15–1.36; n=9 studies] and in-hospital mortality (RR 2.35; 95% CI 1.40–3.95; n=2 studies), respectively. Sensitivity and subgroup analysis demonstrated the credibility of the value of MetS in predicting long-term all-cause mortality. MetS is associated with an increased risk of long-term all-cause mortality among patients with ACS. However, additional studies are required to investigate the association of MetS with in-hospital mortality.

scholarly journals Fractional flow reserve in acute coronary syndrome: a meta-analysis and systematic review

Open Heart ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. e000934 ◽  
Author(s):  
Kevin P Liou ◽  
Sze-Yuan M Ooi ◽  
Stephen P Hoole ◽  
Nick E J West
Keyword(s):  
Acute Coronary Syndrome ◽  
Fractional Flow Reserve ◽  
Meta Analysis ◽  
Major Adverse Cardiovascular Events ◽  
Fractional Flow ◽  
Coronary Syndrome ◽  
Strong Trend ◽  
Flow Reserve ◽  
All Cause Mortality

BackgroundThe utility of fractional flow reserve (FFR) to guide revascularisation in the management of acute coronary syndrome (ACS) remains unclear.ObjectiveThis study aims to compare the clinical outcomes of patients following FFR-guided revascularisation for either ACS or stable angina (SA) and in particular focuses on the outcome of those with deferred revascularisation after FFR.MethodsA meta-analysis of existing literature was performed. Outcomes including the rate of major adverse cardiovascular events (MACE), recurrent myocardial infarction (MI), mortality and unplanned revascularisation were analysed.ResultsA review of 937 records yielded 9 studies comparing 5457 patients, which were included in the analyses. Patients with ACS had a higher rate of recurrent MI (OR 1.81, p=0.02) and a strong trend towards more MACE and all-cause mortality compared with patients with SA when treated by an FFR-guided revascularisation strategy. Deferral of invasive therapy on the basis of FFR led to a higher rate of MACE (17.6% vs 7.3 %; p=0.004), recurrent MI (5.3% vs 1.5%, p=0.001) and target vessel revascularisation (16.4% vs 5.6 %; p=0.02) in patients with ACS, and a strong trend towards a higher cardiovascular mortality at follow-up when compared with patients with SA.ConclusionThe event rate in patients with ACS is much higher than SA despite following an FFR-guided revascularisation strategy. Deferring revascularisation does not appear to be as safe for ACS as it is for SA using contemporary FFR cut-offs validated in SA. Refinement of the therapeutic strategy for patients with ACS with multivessel disease is needed to redress the balance.

Abstract 14732: The Prognostic Implications of Right Bundle Branch Block in Healthy Population: a Systematic Review and Meta-analysis

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Sunita Sharma ◽  
Ahmad Hazem ◽  
Amit Sharma ◽  
Cameron Leitch ◽  
Roopalakshmi Sharadanant ◽  
...  
Keyword(s):  
Systematic Review ◽  
Right Bundle Branch Block ◽  
Cardiovascular Mortality ◽  
Meta Analysis ◽  
Large Population ◽  
Prognostic Significance ◽  
Adverse Outcomes ◽  
Healthy Population ◽  
Bundle Branch Block ◽  
All Cause Mortality

Objective: Multiple large population based observational studies have evaluated the association of various ECG changes with long term adverse outcomes demonstrating conflicting results regarding the significance of right bundle branch block (RBBB). Therefore, we conducted a systematic review and meta-analysis to determine the prognostic significance of RBBB in healthy population. Methods: This systematic review follows an a priori established protocol and is reported following the PRISMA statement (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). We systematically searched EMBASE, Web of Science and Scopus through January 2014. We also consulted with content experts to recommend studies for screening. Reviewers working independently and in duplicate screened all eligible abstracts, selecting randomized trials and prospective cohort studies that described all cause mortality or cardiovascular death in patients with RBBB. We excluded studies that reported unadjusted outcome or unadjusted event rates. For statistical analysis, hazard ratios were considered to approximate risk ratios. The main outcomes of the study are all-cause mortality and cardiovascular mortality. Results: Based on the eligibility, four large cohorts, with total patient count > 100,000 were included in the meta-analysis. Risk of bias was assessed using the Newcastle-Ottawa scale and included studies were deemed to be of high quality. As demonstrated in Figure 1, RBBB was not associated increase in all-cause mortality (RR 1.05; 95% CI 0.89-1.25) or cardiovascular mortality (RR 1.09; 95% CI 0.70-1.69). Conclusion: In asymptomatic healthy patients, RBBB is not associated with poor outcome.

scholarly journals Short-term and long-term prognostic value of circulating soluble suppression of tumorigenicity-2 concentration in acute coronary syndrome: a meta-analysis

2019 ◽  
Vol 39 (6) ◽  
Author(s):  
Linlin Gu ◽  
Jing Li
Keyword(s):  
Acute Coronary Syndrome ◽  
Prognostic Value ◽  
Meta Analysis ◽  
Continuous Variables ◽  
Short Term ◽  
Coronary Syndrome ◽  
Increased Risk ◽  
All Cause Mortality

Abstract Background: Higher circulating soluble suppression of tumorigenicity-2 (sST2) concentration is suggested as a marker of prognosis in many cardiovascular diseases. However, the short-term and long-term prognostic value of sST2 concentration in acute coronary syndrome (ACS) remains to be summarized. Methods: A meta-analysis of follow-up studies was performed. Studies were identified via systematic search of databases including PubMed, Cochrane’s Library, and Embase. A fixed- or random-effect model was applied according to the heterogeneity. We reported the prognostic value of sST2 concentration for all-cause mortality, heart failure (HF) events, and major adverse cardiovascular events (MACEs) within 1 month after hospitalization and during subsequent follow-up. Results: Twelve studies with 11690 ACS patients were included. Higher baseline sST2 concentration as continuous variables predicte the increased risk of all-cause mortality (risk ratio [RR]: 3.16, P=0.002), HF events (RR: 1.48, P<0.001), and MACEs (RR: 1.47, P<0.001) within 1 month after hospitalization, which is consistent with the results with sST2 concentration as categorized variables (RR = 2.14, 2.89, and 2.89 respectively, P all <0.001). Moreover, higher baseline sST2 concentration as continuous variables predict the increased risk of all-cause mortality (RR: 2.20, P<0.001), HF events (RR: 1.39, P<0.001), and MACEs (RR: 1.53, P=0.02) during subsequent follow-up. Meta-analysis with sST2 concentration as categorized variables retrieved similar results (RR = 2.65, 2.59, and 1.81 respectively, P all <0.001). Conclusions: Higher circulating sST2 concentration at baseline predicts poor clinical outcome in ACS patients.

scholarly journals Prediction of all-cause mortality with malnutrition assessed by controlling nutritional status score in patients with heart failure: a systematic review and meta-analysis

2021 ◽  
pp. 1-8
Author(s):  
Huiyang Li ◽  
Peng Zhou ◽  
Yikai Zhao ◽  
Huaichun Ni ◽  
Xinping Luo ◽  
...  
Keyword(s):  
Heart Failure ◽  
Systematic Review ◽  
Nutritional Status ◽  
Meta Analysis ◽  
Predictive Values ◽  
Increased Risk ◽  
Patients With Heart Failure ◽  
All Cause Mortality ◽  
Conut Score

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.

Abstract 12188: Intensive Glycemic Control in Patients With Acute Coronary Syndrome: Evidence From a Meta-Analysis

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Partha Sardar ◽  
Ramez Nairooz ◽  
Saurav Chatterjee ◽  
Jacob A Udell ◽  
Dharam J Kumbhani ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Glycemic Control ◽  
Meta Analysis ◽  
Random Effect ◽  
Intensive Glucose Control ◽  
Intensive Glycemic Control ◽  
Coronary Syndrome ◽  
All Cause Mortality ◽  
Glucose Management ◽  
Management Groups

Introduction: Hyperglycemia is associated with unfavorable prognosis in patients with acute coronary syndrome (ACS). Studies with intensive glycemic control in ACS patients have provided inconsistent results. A meta-analysis was performed to evaluate the effectiveness and safety of intensive glycemic control in patients with ACS. Methods: Search of PubMed, Cochrane CENTRAL, EMBASE, EBSCO, Web of Science and CINAHL databases from their inception through April 2014, identifying randomized controlled trials (RCTs) comparing the effects of intensive versus standard glucose management in patients with ACS. We calculated summary random-effect odds ratios (OR) and 95% confidence intervals (CI). Results: Results from 10 RCTs comprising 2,621 patients were analyzed. All-cause mortality between intensive versus standard glucose management groups did not differ significantly (OR 1.00, 95% CI 0.75-1.34). Similarly, no significant differences were observed between the comparator groups for the odds of cardiac mortality (OR 0.87, 95% CI, 0.67 to 1.12), recurrent myocardial infarction (OR 1.07, 95% CI, 0.76 to 1.52), or stroke (OR 1.20, 95% CI, 0.60 to 2.40). The risk of hypoglycemia (OR 5.95, 95% CI, 2.73 to 12.97; p<0.001) was significantly higher with intensive compared with standard glucose management. Conclusions: Intensive glucose control compared with standard care in ACS patients did not reduce mortality or morbidity, but significantly increased the risk of hypoglycemia. These data from prior clinical trials should be interpreted in the context of their significant methodological limitations.

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