BACKGROUND Non-ST-elevation myocardial infarction(NSTEMI)is a prevalent acute coronary syndrome among the elderly,a population often underrepresented in clinical trials.Frailty,a marker of physiologic vulnerability,ma...BACKGROUND Non-ST-elevation myocardial infarction(NSTEMI)is a prevalent acute coronary syndrome among the elderly,a population often underrepresented in clinical trials.Frailty,a marker of physiologic vulnerability,may influence the risks and benefits of percutaneous coronary intervention(PCI)in these patients.AIM To evaluate the impact of frailty status on in-hospital outcomes among patients aged≥75 years with NSTEMI undergoing PCI.METHODS We conducted a retrospective cohort study using the 2021-2022 National Inpatient Sample to evaluate the impact of frailty on in-hospital outcomes among NSTEMI patients aged≥75 years undergoing PCI.Patients were stratified into three frailty categories using the Hospital Frailty Risk Score.Multivariable logistic and generalized linear models with interaction terms assessed the association between frailty and clinical outcomes.RESULTS Among 456690 NSTEMI admissions,37.95%,50.71%,and 11.34%were categorized as low,intermediate,and high frailty,respectively.PCI use declined with increasing frailty(35.0%in low vs 7.5%in high;P<0.001).Adjusted mortality was lower with PCI across all frailty levels[odds ratios(OR):0.27(low),0.37(intermediate),0.43(high);all P<0.001].However,the mortality benefit was attenuated with increasing frailty(interaction OR:1.56 and 1.83 for intermediate and high vs low frailty;P<0.001).Frailty was independently associated with higher odds of complications,including acute kidney injury,respiratory failure,delirium,and bleeding.PCI was associated with shorter hospital stays in low(-0.90 days)but longer in the high-frail category(+2.47 days;P<0.001),and increasing frailty correlated with significantly higher hospital charges.CONCLUSION In elderly NSTEMI patients,PCI conferred a survival benefit across all frailty strata,although with a diminishing magnitude as frailty increased.Frailty correlated with increased complications and healthcare resource utilization.展开更多
BACKGROUND Conduction and rhythm abnormalities requiring permanent pacemakers(PPM)are short-term complications following transcatheter aortic valve replacement(TAVR),and their clinical outcomes remain conflicting.Pote...BACKGROUND Conduction and rhythm abnormalities requiring permanent pacemakers(PPM)are short-term complications following transcatheter aortic valve replacement(TAVR),and their clinical outcomes remain conflicting.Potential novel predictors of post-TAVR PPM,like QRS duration,QTc prolongation,and supraventricular arrhythmias,have been poorly studied.AIM To evaluate the effects of baseline nonspecific interventricular conduction delay and supraventricular arrhythmia on post-TAVR PPM requirement and determine the impact of PPM implantation on clinical outcomes.METHODS RESULTS Out of the 357 patients that met inclusion criteria,the mean age was 80 years,188(52.7%)were male,and 57(16%)had a PPM implantation.Baseline demographics,valve type,and cardiovascular risk factors were similar except for type II diabetes mellitus(DM),which was more prevalent in the PPM cohort(59.6%vs 40.7%;P=0.009).The PPM cohort had a significantly higher rate of pre-procedure right bundle branch block,prolonged QRS>120 ms,prolonged QTc>470 ms,and supraventricular arrhythmias.There was a consistently significant increase in the odds ratio(OR)of PPM implantation for every 20 ms increase in the QRS duration above 100 ms:QRS 101-120[OR:2.44;confidence intervals(CI):1.14-5.25;P=0.022],QRS 121-140(OR:3.25;CI:1.32-7.98;P=0.010),QRS 141-160(OR:6.98;CI:3.10-15.61;P<0.001).After model adjustment for baseline risk factors,the OR remained significant for type II DM(aOR:2.16;CI:1.18-3.94;P=0.012),QRS>120(aOR:2.18;CI:1.02-4.66;P=0.045)and marginally significant for supraventricular arrhythmias(aOR:1.82;CI:0.97-3.42;P=0.062).The PPM cohort had a higher adjusted OR of heart failure(HF)hospitalization(aOR:2.2;CI:1.1-4.3;P=0.022)and nonfatal myocardial infarction(MI)(aOR:3.9;CI:1.1-14;P=0.031)without any difference in mortality(aOR:1.1;CI:0.5-2.7;P=0.796)at one year.CONCLUSION Pre-TAVR type II DM and QRS duration>120,regardless of the presence of bundle branch blocks,are predictors of post-TAVR PPM.At 1-year post-TAVR,patients with PPM have higher odds of HF hospitalization and MI.展开更多
文摘BACKGROUND Non-ST-elevation myocardial infarction(NSTEMI)is a prevalent acute coronary syndrome among the elderly,a population often underrepresented in clinical trials.Frailty,a marker of physiologic vulnerability,may influence the risks and benefits of percutaneous coronary intervention(PCI)in these patients.AIM To evaluate the impact of frailty status on in-hospital outcomes among patients aged≥75 years with NSTEMI undergoing PCI.METHODS We conducted a retrospective cohort study using the 2021-2022 National Inpatient Sample to evaluate the impact of frailty on in-hospital outcomes among NSTEMI patients aged≥75 years undergoing PCI.Patients were stratified into three frailty categories using the Hospital Frailty Risk Score.Multivariable logistic and generalized linear models with interaction terms assessed the association between frailty and clinical outcomes.RESULTS Among 456690 NSTEMI admissions,37.95%,50.71%,and 11.34%were categorized as low,intermediate,and high frailty,respectively.PCI use declined with increasing frailty(35.0%in low vs 7.5%in high;P<0.001).Adjusted mortality was lower with PCI across all frailty levels[odds ratios(OR):0.27(low),0.37(intermediate),0.43(high);all P<0.001].However,the mortality benefit was attenuated with increasing frailty(interaction OR:1.56 and 1.83 for intermediate and high vs low frailty;P<0.001).Frailty was independently associated with higher odds of complications,including acute kidney injury,respiratory failure,delirium,and bleeding.PCI was associated with shorter hospital stays in low(-0.90 days)but longer in the high-frail category(+2.47 days;P<0.001),and increasing frailty correlated with significantly higher hospital charges.CONCLUSION In elderly NSTEMI patients,PCI conferred a survival benefit across all frailty strata,although with a diminishing magnitude as frailty increased.Frailty correlated with increased complications and healthcare resource utilization.
文摘BACKGROUND Conduction and rhythm abnormalities requiring permanent pacemakers(PPM)are short-term complications following transcatheter aortic valve replacement(TAVR),and their clinical outcomes remain conflicting.Potential novel predictors of post-TAVR PPM,like QRS duration,QTc prolongation,and supraventricular arrhythmias,have been poorly studied.AIM To evaluate the effects of baseline nonspecific interventricular conduction delay and supraventricular arrhythmia on post-TAVR PPM requirement and determine the impact of PPM implantation on clinical outcomes.METHODS RESULTS Out of the 357 patients that met inclusion criteria,the mean age was 80 years,188(52.7%)were male,and 57(16%)had a PPM implantation.Baseline demographics,valve type,and cardiovascular risk factors were similar except for type II diabetes mellitus(DM),which was more prevalent in the PPM cohort(59.6%vs 40.7%;P=0.009).The PPM cohort had a significantly higher rate of pre-procedure right bundle branch block,prolonged QRS>120 ms,prolonged QTc>470 ms,and supraventricular arrhythmias.There was a consistently significant increase in the odds ratio(OR)of PPM implantation for every 20 ms increase in the QRS duration above 100 ms:QRS 101-120[OR:2.44;confidence intervals(CI):1.14-5.25;P=0.022],QRS 121-140(OR:3.25;CI:1.32-7.98;P=0.010),QRS 141-160(OR:6.98;CI:3.10-15.61;P<0.001).After model adjustment for baseline risk factors,the OR remained significant for type II DM(aOR:2.16;CI:1.18-3.94;P=0.012),QRS>120(aOR:2.18;CI:1.02-4.66;P=0.045)and marginally significant for supraventricular arrhythmias(aOR:1.82;CI:0.97-3.42;P=0.062).The PPM cohort had a higher adjusted OR of heart failure(HF)hospitalization(aOR:2.2;CI:1.1-4.3;P=0.022)and nonfatal myocardial infarction(MI)(aOR:3.9;CI:1.1-14;P=0.031)without any difference in mortality(aOR:1.1;CI:0.5-2.7;P=0.796)at one year.CONCLUSION Pre-TAVR type II DM and QRS duration>120,regardless of the presence of bundle branch blocks,are predictors of post-TAVR PPM.At 1-year post-TAVR,patients with PPM have higher odds of HF hospitalization and MI.
