Baseline fragmented QRS increases the risk of major arrhythmic events in hypertrophic cardiomyopathy: Systematic review and meta‐analysis

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/144613/1/anec12533.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/144613/2/anec12533_am.pd

Chronic kidney disease is associated with increased mortality and procedural complications in transcatheter aortic valve replacement: a systematic review and meta‐analysis

ObjectiveWe performed a systematic review and meta‐analysis to explore the association between chronic kidney disease (CKD) and mortality and procedural complications in transcatheter aortic valve replacement (TAVR).BackgroundThe impact of varying stages of CKD or end‐stage renal disease (ESRD) on patients receiving TAVR is not clearly identified.MethodsWe searched the databases of MEDLINE and EMBASE from inception to May 2018. Included studies were published TAVR studies that compared the risk of mortality and procedural complications in CKD patients compared to control patients. Data from each study were combined using the random‐effects model.ResultsTwelve studies (42,703 CKD patients and 51,347 controls) were included. Compared with controls, CKD patients had a significantly higher risk of 30‐day overall mortality (risk ratio [RR] = 1.56, 95% confidence interval [CI]: 1.34–1.80, I2 = 60.9), long‐term cardiovascular mortality (RR = 1.44, 95% CI: 1.22–1.70, I2 = 36.2%), and long‐term overall mortality (RR = 1.66, 95% CI: 1.45–1.91, I2 = 80.3), as well as procedural complications including pacemaker requirement (RR = 1.20, 95% CI: 1.03–1.39, I2 = 56.1%) and bleeding (RR = 1.60, 95% CI: 1.26–2.02, I2 = 86.0%). Risk of mortality and procedural complications increased with severity of CKD for stages 3, 4, and 5, respectively, in terms of long‐term overall mortality (RR = 1.28, 1.82, and 2.12), 30‐day overall mortality (RR = 1.26, 1.89, and 1.93), 30‐day cardiovascular mortality (RR = 1.18, 1.75, and 2.50), and 30‐day overall bleeding (RR = 1.19, 1.63, and 2.12).ConclusionsOur meta‐analysis demonstrates a significant increased risk of mortality and procedural complications in patients with CKD who underwent TAVR compared to controls.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/151278/1/ccd28102_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/151278/2/ccd28102.pd

Significant association between osteoporosis and hearing loss: a systematic review and meta-analysis

Abstract Introduction: There is inconclusive evidence whether osteoporosis increases risk of hearing loss in current literature. Objective: We conducted this meta-analysis to determine whether there is an association between hearing loss and osteoporosis. Methods: This systematic review and meta-analysis was conducted from studies of MEDLINE, EMBASE, and LILACS. Osteoporosis was defined as having a bone mineral density with a T-score of less than −2.5 standard deviation. The outcome was hearing loss as assessed by audiometry or self-reported assessment. Random-effects model and pooled hazard ratio, risk ratio, or odds ratio of hearing loss with 95% confidence intervals were compared between normal bone mineral density and low bone mineral density or osteoporosis. Results: A total of 16 articles underwent full-length review. Overall, there was a statistically significant increased odds of hearing loss in the low bone mineral density or osteoporosis group with odds ratio of 1.20 (95% confidence intervals 1.01-1.42, p = 0.04, I 2 = 82%, Pheterogeneity = 0.01). However, the study from Helzner et al. reported significantly increase odds of hearing loss in the low bone mineral density in particular area and population included femoral neck of black men 1.37 (95% confidence intervals 1.07-1.76, p = 0.01) and total hip of black men 1.36 (95% confidence intervals 1.05-1.76, p = 0.02). Conclusion: Our study proposed the first meta-analysis that demonstrated a probable association between hearing loss and bone mineral density. Osteoporosis could be a risk factor in hearing loss and might play an important role in age-related hearing loss

Baseline Prolonged PR Interval and Outcome of Cardiac Resynchronization Therapy: A Systematic Review and Meta-analysis

Abstract Background: Recent studies suggest that baseline prolonged PR interval is associated with worse outcome in cardiac resynchronization therapy (CRT). However, a systematic review and meta-analysis of the literature have not been made. Objective: To assess the association between baseline prolonged PR interval and adverse outcomes of CRT by a systematic review of the literature and a meta-analysis. Methods: We comprehensively searched the databases of MEDLINE and EMBASE from inception to March 2017. The included studies were published prospective or retrospective cohort studies that compared all-cause mortality, HF hospitalization, and composite outcome of CRT with baseline prolonged PR (> 200 msec) versus normal PR interval. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate the risk ratios and 95% confidence intervals. Results: Six studies from January 1991 to May 2017 were included in this meta-analysis. All-cause mortality rate is available in four studies involving 17,432 normal PR and 4,278 prolonged PR. Heart failure hospitalization is available in two studies involving 16,152 normal PR and 3,031 prolonged PR. Composite outcome is available in four studies involving 17,001 normal PR and 3,866 prolonged PR. Prolonged PR interval was associated with increased risk of all-cause mortality (pooled risk ratio = 1.34, 95 % confidence interval: 1.08-1.67, p < 0.01, I2= 57.0%), heart failure hospitalization (pooled risk ratio = 1.30, 95 % confidence interval: 1.16-1.45, p < 0.01, I2= 6.6%) and composite outcome (pooled risk ratio = 1.21, 95% confidence interval: 1.13-1.30, p < 0.01, I2= 0%). Conclusions: Our systematic review and meta-analysis support the hypothesis that baseline prolonged PR interval is a predictor of all-cause mortality, heart failure hospitalization, and composite outcome in CRT patients