Sudden death in patients with sleep apnea: a systematic review and meta-analysis

AbstractBackgroundOver 1 billion individuals across the globe experience some form of sleep apnea, and this number is steadily rising. Obstructive sleep apnea (OSA) can negatively influence one’s quality of life and potentially increase the risk of mortality. However, this association between OSA and mortality has not been comprehensively and thoroughly explored. This meta-analysis was conducted to conclusively estimate the risk of death for all-cause mortality and cardiovascular mortality in OSA patients.Study Design4,613 articles from databases including PUBMED, OVID & Joana Briggs, and SCOPUS were comprehensively assessed by two reviewers (AES & ESH) for inclusion criteria. 28 total articles were included, with 22 of them being used for quantitative analysis. Pooled effects of all-cause mortality, cardiac mortality, and sudden death were calculated by utilizing the metaprop function in R Statistical Software and the random-effects model with appropriate 95% confidence intervals.ResultsAnalysis on 42,032 individuals revealed that those with OSA were twice as likely to die from cardiac mortality compared to those without sleep apnea (HR= 1.94, 95%CI 1.39-2.70). Likewise, individuals with OSA were 1.7 times as likely to die from all-cause sudden death compared to individuals without sleep apnea (HR= 1.74, 95%CI 1.40-2.10). There was a significant dose response relationship between severity of sleep apnea and incidence risk of death, where those with severe sleep apnea wereConclusionsIndividuals with obstructive sleep apnea are at an increased risk for all-cause mortality and cardiac mortality. Further research related to appropriate interventions and treatments are necessary in order to reduce this risk and optimize survival in this population.Key MessagesWhat is the key question?Are individuals with sleep apnea at an increased risk for cardiovascular mortality and sudden death?What is the bottom Line?Sleep apnea is associated with an increased risk of cardiovascular mortality and sudden death, with a dose response relationship, where those with severe sleep apnea are at the highest risk of mortality.Why read on?This is the first systematic review and meta-analyses to synthesize and quantify the risk of mortality in those with sleep apnea, highlighting important directions for future research.Prospero Registration IDCRD42020164941

Download Full-text

Abstract 17216: Upright T Wave in Lead AVR and Risk of Mortality: A Systematic Review and Meta-Analysis

Circulation ◽

10.1161/circ.142.suppl_3.17216 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

laith A derbas ◽

Raed Qarajeh ◽

Anas Noman ◽

Mohammed Al Amoodi ◽

Ala Mohsen ◽

...

Keyword(s):

Cardiovascular Mortality ◽

Meta Analysis ◽

Adverse Outcomes ◽

Risk Scores ◽

Risk Of Death ◽

T Wave ◽

Risk Of Mortality ◽

Increased Risk ◽

All Cause Mortality ◽

Lead Avr

Background: Multiple observational studies have shown that positive T wave in lead AVR (PTAVR) on 12-lead electrocardiogram is associated with an increased risk of adverse outcomes including death. We sought to review the literature and conduct a meta-analysis to estimate the risk of mortality in patients with PTAVR. Methods: We searched multiple databases to investigate the association between PTAVR and risk of death. Studies that reported adjusted odds ratio (OR) or hazards ratio (HR) of the association between PTAVR and risk of death (all cause or cardiovascular mortality) were included. We used inverse variance approach to pool adjusted OR /HR and it’s 95 % confidence interval using a random effects model meta-analysis. Results: Out of 140 relevant studies, 17 studies were eligible. Twelve studies reported all-cause mortality and enrolled 4,122 patients, 1976 (47.9%) were males. PTAVR was associated with a significant increase in all-cause mortality, with a pooled adjusted OR 2.44, 95% CI [1.76-3.39], heterogeneity I 2 = 86%. Five studies reported cardiovascular mortality and enrolled 31,713 patients, 27,628 (87.1%) were males. PTAVR was associated with a significant increase in cardiovascular mortality, with a pooled adjusted OR 2.34, 95% CI [1.82-3.0], heterogeneity I 2 = 68%. Conclusion: Our findings suggest that PTAVR is significantly associated with a higher risk of death from any cause as well cardiovascular mortality. Lead AVR, an often neglected lead, should be carefully interpreted as it may provide important prognostic information. Further studies are warranted to examined the prognostic value of PTAVR in risk stratification when added to existing cardiovascular risk scores.

Download Full-text

Renin-angiotensin system blocker and outcomes of COVID-19: a systematic review and meta-analysis

Thorax ◽

10.1136/thoraxjnl-2020-215322 ◽

2021 ◽

pp. thoraxjnl-2020-215322

Author(s):

Hyun Woo Lee ◽

Chang-Hwan Yoon ◽

Eun Jin Jang ◽

Chang-Hoon Lee

Keyword(s):

Systematic Review ◽

Meta Analysis ◽

Severe Disease ◽

Renin Angiotensin System ◽

Angiotensin Ii Receptor ◽

Angiotensin System ◽

Risk Of Mortality ◽

Increased Risk ◽

All Cause Mortality ◽

Receptor Blockers

BackgroundThe association of ACE inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs) with disease severity of patients with COVID-19 is still unclear. We conducted a systematic review and meta-analysis to investigate if ACEI/ARB use is associated with the risk of mortality and severe disease in patients with COVID-19.MethodsWe searched all available clinical studies that included patients with confirmed COVID-19 who could be classified into an ACEI/ARB group and a non-ACEI/ARB group up until 4 May 2020. A meta-analysis was performed, and primary outcomes were all-cause mortality and severe disease.ResultsACEI/ARB use did not increase the risk of all-cause mortality both in meta-analysis for 11 studies with 12 601 patients reporting ORs (OR=0.52 (95% CI=0.37 to 0.72), moderate certainty of evidence) and in 2 studies with 8577 patients presenting HRs. For 12 848 patients in 13 studies, ACEI/ARB use was not related to an increased risk of severe disease in COVID-19 (OR=0.68 (95% CI=0.44 to 1.07); I2=95%, low certainty of evidence).ConclusionsACEI/ARB therapy was not associated with increased risk of all-cause mortality or severe manifestations in patients with COVID-19. ACEI/ARB therapy can be continued without concern of drug-related worsening in patients with COVID-19.

Download Full-text

Laparoscopic Roux-En-Y Gastric Bypass in Elderly Patients (60 Years or Older): A Meta-Analysis of Comparative Studies

Scandinavian Journal of Surgery ◽

10.1177/1457496917731183 ◽

2017 ◽

Vol 107 (1) ◽

pp. 6-13 ◽

Cited By ~ 11

Author(s):

S. Giordano ◽

M. Victorzon

Keyword(s):

Obstructive Sleep Apnea ◽

Gastric Bypass ◽

Confidence Interval ◽

Excess Weight Loss ◽

Meta Analysis ◽

Younger Patients ◽

Risk Of Mortality ◽

Obstructive Sleep ◽

Increased Risk ◽

Remission Rates

Background and Aims: Elderly patient might experience an increased risk of complications after laparoscopic Roux-en-Y gastric bypass. We aimed to perform a meta-analysis of comparative studies on this issue in patients aged 60 years or older. Material and Methods: A systematic literature search was performed. Medline, Cochrane Library, Embase, Scopus, and Google Scholar were searched until July 2016 for studies on outcomes of laparoscopic Roux-en-Y gastric bypass in elderly versus younger patients. Primary outcomes were mortality and overall complications. Secondary outcomes were length of hospital stay, excess weight loss percentage, effect on diabetes, hypertension, hyperlipidemia and obstructive sleep apnea. Heterogeneity across the studies was evaluated by the I2 test, and a random effects model was used. Results were expressed as mean difference and risk ratio (RR). Results: Seven studies involving 3128 patients were retrieved and included in this study. A significantly increased risk of mortality and overall complications was observed among patients older than 60 years compared with younger ones (RR, 6.12; 95% confidence interval 1.08–34.83; p = 0.04; RR, 1.51; 95% confidence interval 1.07–2.11; p = 0.02). Particularly, elderly patients experienced 1% increased risk of mortality and 3% increased risk of overall complications. Length of stay, diabetes, and obstructive sleep apnea remission rates were similar among the groups. Excess weight loss percentage was significantly greater among younger patients (mean difference, −3.44; 95% confidence interval −5.20, −1.68; p < 0.001), as were hypertension (RR, 0.57; 95% confidence interval 0.42–0.76; p < 0.001) and hyperlipidemia (RR, 0.61; 95% confidence interval 0.45–0.83; p = 0.002) remission rates. Conclusion: Laparoscopic Roux-en-Y gastric bypass in patients older than 60 years may be a risky bariatric surgery operation due to higher complications and mortality and may not be as effective as in patients younger than 60 years. Thus, older patients should be carefully counseled before this procedure for individual risk–benefit assessment.

Download Full-text

Abstract P068: Obstructive Sleep Apnea is Associated with an Increase Risk of Osteoporosis

Circulation ◽

10.1161/circ.131.suppl_1.p068 ◽

2015 ◽

Vol 131 (suppl_1) ◽

Author(s):

Anawin Sanguankeo ◽

Sikarin Upala

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Primary Outcome ◽

Meta Analysis ◽

Systemic Disease ◽

Obstructive Sleep ◽

Increased Risk ◽

Increase Risk ◽

Osteoporosis Risk ◽

Stimulation Of

Background: Obstructive sleep apnea (OSA) is thought to be a systemic disease and has been associated with many disorders such as metabolic, endocrine, and especially cardiovascular diseases. One of the consequences of OSA is hypoxia, which can lead to a reduction in growth of osteoblast and a stimulation of osteoclast. Our meta-analysis was conducted to determine the risk of osteoporosis in patients with OSA compared to controls. Objectives: Eligible studies assessing the effects of obstructive sleep apnea on osteoporosis risk were comprehensively searched in PubMed/MEDLINE, EMBASE, and CENTRAL from their inception to September 2014. Two authors independently assessed article quality and extracted the data. Primary outcome were number of participants, prevalence, or risk ratio of osteoporosis in OSA and controls. Results: From 40 full-text articles, 3 studies involving 113,090 participants were included in the meta-analysis that were based on the random effects model. Compared with controls, participants who were diagnosed with obstructive sleep apnea had increased risk of osteoporosis (pooled risks ratio, 1.85; 95% CI, 1.34, 2.56). Conclusion: Patients with OSA had a higher risk of developing osteoporosis. Further study is needed to evaluate the possible mechanisms between these two conditions and to find potential treatment for OSA that could prevent osteoporosis.

Download Full-text

Left Ventricular Mass Regression, All-Cause and Cardiovascular Mortality in Chronic Kidney Disease: A Meta-Analysis

10.21203/rs.3.rs-699938/v1 ◽

2021 ◽

Author(s):

Kevin C. Maki ◽

Meredith L. Wilcox ◽

Mary R. Dicklin ◽

Rahul Kakkar ◽

Michael H. Davidson

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Left Ventricular Mass ◽

Cardiovascular Mortality ◽

Meta Analysis ◽

Left Ventricular ◽

Secondary Outcome ◽

Ventricular Mass ◽

Increased Risk ◽

All Cause Mortality

Abstract Background Cardiovascular disease is an important driver of the increased mortality associated with chronic kidney disease (CKD). Higher left ventricular mass (LVM) predicts increased risk of adverse cardiovascular outcomes and total mortality, but previous reviews have shown no clear association between intervention-induced LVM change and all-cause or cardiovascular mortality in CKD. Methods The primary objective of this meta-analysis was to investigate whether treatment-induced reductions in LVM over periods ≥ 12 months were associated with all-cause mortality in patients with CKD. Cardiovascular mortality was investigated as a secondary outcome. Measures of association in the form of relative risks (RRs) with associated variability and precision (95% confidence intervals [CIs]) were extracted directly from each study, when reported, or were calculated based on the published data, if possible, and pooled RR estimates were determined. Results The meta-analysis included 38 trials with duration ≥ 12 months: 6 of erythropoietin stimulating agents treating to higher vs. lower hemoglobin targets, 10 of renin-angiotensin-aldosterone system inhibitors vs. placebo or another blood pressure lowering agent, 14 of modified hemodialysis regimens, and 8 of other types of interventions. All-cause mortality was reported in 116/2385 (4.86%) subjects in intervention groups and 161/2404 (6.70%) subjects in control groups. The pooled RR estimate of the 24 trials ≥ 12 months with ≥ 1 event in ≥ 1 group was 0.72 (95% CI 0.57 to 0.91, p = 0.005), with little heterogeneity across studies. Directionalities of the associations in intervention subgroups were the same. Sensitivity analyses of ≥ 6 months (31 trials), ≥ 9 months (26 trials), and > 12 months (9 trials), and including studies with no events in either group, demonstrated similar risk reductions to the primary analysis. The point estimate for cardiovascular mortality was similar to all-cause mortality, but not statistically significant: RR 0.66, 95% CI 0.38 to 1.15. Conclusions These results suggest that LVM regression may be a useful surrogate marker for benefits of interventions intended to reduce mortality risk in patients with CKD.

Download Full-text

Cardiovascular and all-cause mortality attributable to loneliness in older Swedish men and women.

10.21203/rs.2.22585/v2 ◽

2020 ◽

Author(s):

Masuma Novak ◽

Margda waern ◽

Lena Johansson ◽

Anna Zettergren ◽

Lina Ryden ◽

...

Keyword(s):

Cardiovascular Mortality ◽

Cox Regression ◽

Mortality Data ◽

Men And Women ◽

Face To Face ◽

Risk Of Mortality ◽

Increased Risk ◽

All Cause Mortality ◽

Adjusted Model

Abstract Background. This study examined whether loneliness predicts cardiovascular- and all-cause mortality in older men and women. Methods. Baseline data from the Gothenburg H70 Birth Cohort Studies, collected during 2000 on 70-year-olds born 1930 and living in Gothenburg were used for analysis (n=524). Mortality data were analyzed until 2012 through Swedish national registers. Results. Perceived loneliness was reported by 17.1% of the men and 30.9% of the women in a face-to-face interview with mental health professional. A total of 142 participants died during the 12-year follow-up period, with 5 334 person-years at risk, corresponding to 26.6 deaths/1000 person-years. Cardiovascular disease accounted for 59.2% of all deaths. The cumulative rates/1000 person-years for cardiovascular mortality were 20.8 (men) and 11.5 (women), and for all-cause mortality 33.8 (men) and 20.5 (women), respectively. In Cox regression models, no significant increased risk of mortality was seen for men with loneliness compared to men without loneliness (cardiovascular mortality HR 1.52, 95% CI 0.78 - 2.96; all-cause HR 1.32, 95% CI 0.77 - 2.28). Increased risk of cardiovascular mortality was observed in women with loneliness compared to those without (HR 2.25 95% CI 1.14 - 4.45), and the risk remained significant in a multivariable-adjusted model (HR 2.42 95% CI 1.04 - 5.65). Conclusions. Loneliness was shown to be an independent predictor of cardiovascular mortality in women. We found no evidence to indicate that loneliness was associated with an increased risk of either cardiovascular- or all-cause mortality in men.

Download Full-text

Long-term All-Cause Mortality Risk in Obstructive Sleep Apnea Using Hypopneas Defined by a ≥3 Percent Oxygen Desaturation or Arousal

Southwest Journal of Pulmonary and Critical Care ◽

10.13175/swjpcc025-21 ◽

2021 ◽

Vol 23 (1) ◽

pp. 23-35

Author(s):

Rohit Budhiraja ◽

◽

Stuart Quan

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Mortality Risk ◽

Oxygen Desaturation ◽

Risk Of Death ◽

Obstructive Sleep ◽

All Cause Mortality ◽

Categorical Models

Study Objectives: Some prior studies have demonstrated an increase in mortality associated with obstructive sleep apnea (OSA) utilizing a definition of OSA that requires a minimum 4% oxygen desaturation to identify a hypopnea. No large community-based studies have determined the risk of long-term mortality with OSA with hypopneas defined by a ≥3% O2 desaturation or arousal (AHI3%A). Methods: Data from 5591 Sleep Heart Health Study participants without prevalent cardiovascular disease at baseline who underwent polysomnography were analyzed regarding OSA diagnosed using the AHI3%A criteria and all-cause mortality over a mean follow up period of 10.9±3.2 years. Results: There were 1050 deaths in this group during the follow-up period. A Kaplan-Meir plot of survival revealed a reduction in survival with increasing AHI severity. Cox proportional hazards regression models revealed significantly increased all-cause mortality risk with increasing AHI, hazard ratio (HR, 95% CI) 1.13 (1.04-1.23), after adjusting for age, sex, race, BMI, cholesterol, HDL, self-reported hypertension and/or diabetes and smoking status. In categorical models, the mortality risk was significantly higher with severe OSA [adjusted HR 1.38 (1.09-1.76)]. When stratified by gender or age, severe OSA was associated with increased risk of death in men [adjusted HR 1.14 (1.01-1.28)] and in those <70 years of age [adjusted HR 1.51 (1.02-2.26)]. In contrast, AHI severity was not associated with increased mortality in women or those ≥70 years of age in fully adjusted models. Conclusion: Severe AHI3%A OSA is associated with significantly increased mortality risk, especially in men and those <70 years of age.

Download Full-text

Cardiovascular and all-cause mortality attributable to loneliness in older Swedish men and women

BMC Geriatrics ◽

10.1186/s12877-020-01603-x ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Masuma Novak ◽

Margda Waern ◽

Lena Johansson ◽

Anna Zettergren ◽

Lina Ryden ◽

...

Keyword(s):

Cardiovascular Mortality ◽

Cox Regression ◽

Mortality Data ◽

Men And Women ◽

Face To Face ◽

Risk Of Mortality ◽

Increased Risk ◽

All Cause Mortality ◽

Adjusted Model

Abstract Background This study examined whether loneliness predicts cardiovascular- and all-cause mortality in older men and women. Methods Baseline data from the Gothenburg H70 Birth Cohort Studies, collected during 2000 on 70-year-olds born 1930 and living in Gothenburg were used for analysis (n = 524). Mortality data were analyzed until 2012 through Swedish national registers. Results Perceived loneliness was reported by 17.1% of the men and 30.9% of the women in a face-to-face interview with mental health professional. A total of 142 participants died during the 12-year follow-up period, with 5334 person-years at risk, corresponding to 26.6 deaths/1000 person-years. Cardiovascular disease accounted for 59.2% of all deaths. The cumulative rates/1000 person-years for cardiovascular mortality were 20.8 (men) and 11.5 (women), and for all-cause mortality 33.8 (men) and 20.5 (women), respectively. In Cox regression models, no significant increased risk of mortality was seen for men with loneliness compared to men without loneliness (cardiovascular mortality HR 1.52, 95% CI 0.78–2.96; all-cause HR 1.32, 95% CI 0.77–2.28). Increased risk of cardiovascular mortality was observed in women with loneliness compared to those without (HR 2.25 95% CI 1.14–4.45), and the risk remained significant in a multivariable-adjusted model (HR 2.42 95% CI 1.04–5.65). Conclusions Loneliness was shown to be an independent predictor of cardiovascular mortality in women. We found no evidence to indicate that loneliness was associated with an increased risk of either cardiovascular- or all-cause mortality in men.

Download Full-text

Abstract 118: Right Bundle Branch Block and Clinical Outcomes in Patients with Heart Failure: A Systematic Review and Meta-analysis

Circulation Cardiovascular Quality and Outcomes ◽

10.1161/circoutcomes.7.suppl_1.118 ◽

2014 ◽

Vol 7 (suppl_1) ◽

Author(s):

Ahmad Hazem ◽

Sunita Sharma ◽

Amit Sharma ◽

Cameron Leitch ◽

Roopalakshmi Sharadanant ◽

...

Keyword(s):

Heart Failure ◽

Systematic Review ◽

Clinical Outcomes ◽

Cardiovascular Mortality ◽

Observational Studies ◽

Meta Analysis ◽

Bundle Branch Block ◽

Increased Risk ◽

Patients With Heart Failure ◽

All Cause Mortality

Importance: Right bundle branch block (RBBB) is observed in approximately 5-14% of patients with heart failure (HF). Multiple observational studies have reported the association of RBBB with clinical outcomes in patients with HF. We performed a systematic review and meta-analysis to determine the prognostic significance of RBBB for patients with HF. Data Sources: We have systematically searched MEDLINE, EMBASE, Cochrane CENTRAL, Web of Science and Scopus through January 2014. Study Selection: Reviewers working independently and in duplicate screened all eligible abstracts that described all cause or cardiovascular mortality in patients with RBBB and HF. We excluded studies that reported unadjusted outcome, i.e.: unadjusted event rates. Knowledge synthesis: We pooled reported risk ratio and hazard ratio. Main Outcomes: All-cause mortality and cardiovascular mortality (death). Results: We found 12 relevant observational studies enrolling over 38,000 patients. Risk of bias was assessed using the Newcastle-Ottawa Scale. Included studies had at least a moderate quality. Seven of those evaluated prognosis of patients with RBBB and heart failure. After a mean follow up period of 2.5 years (range: 1-5 years), RBBB was associated with a statistically significant increased risk of all-cause mortality compared to patients with heart failure but no BBB, RR 1.27, 95% CI (1.08-1.50), Figure 1. The other 5 studies evaluated CHF patients receiving cardiac resynchronization therapy (CRT), comparing outcomes of patients with RBBB to those with LBBB. After a mean f/u period of 3 years, patients with RBBB were once again found to have an increased risk of all-cause mortality, RR 1.45, 95% CI 1.12-1.89. Conclusion and Relevance: RBBB in patients with HF is associated with higher all-cause mortality in comparison to patients without inter-ventricular conduction defects, as well as LBBB patients in patients undergoing CRT setting.

Download Full-text