Mortality after implantable cardioverter defibrillators in dialysis patients: a nationwide study

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Alhakak ◽  
L Ostergaard ◽  
J.H Butt ◽  
M Vinther ◽  
B.T Philbert ◽  
...  

Abstract Background Although randomized clinical trials have shown that implantable cardioverter defibrillators (ICDs) reduce mortality in selected patients, patients on dialysis are excluded from these trials. Thus, data on mortality risk after ICD implantation in these patients are sparse. Purpose To examine all-cause mortality in patients receiving an ICD according to dialysis status and to identify factors associated with all-cause mortality in patients on dialysis. Methods Using Danish nationwide registries from 2000–2017, all patients ≥18 years old undergoing first-time ICD implantation were included. Patients on dialysis were identified prior to ICD implantation and followed for up to five years. The cumulative incidence of all-cause mortality according to dialysis status was assessed. Factors associated with all-cause mortality after ICD implantation in dialysis patients were examined using multivariable Cox proportional hazard regression. Results A total of 14,681 ICD patients were identified, of which 218 (1.5%) were on dialysis prior to ICD implantation. Compared with ICD patients not on dialysis, those on dialysis were younger (median age 64 years [IQR: 58–70] vs. 66 years [IQR: 57–72], p=0.02), more likely to receive an ICD for secondary prophylaxis (69.7% vs 53.7%), and had more comorbidities including ischaemic heart disease (60.6% vs. 46.3%), diabetes (28.4% vs. 20.4%), and peripheral vascular disease (10.1% vs. 5.6%) (p for all <0.05). The median time to death among ICD patients on dialysis and not on dialysis were 1.3 years (IQR: 0.4–2.8 years] and 2.2 years [IQR: 1.0–3.5 years], respectively. One-year mortality among ICD patients on dialysis (13.0%) was significantly higher compared with ICD patients not on dialysis (4.7%), p<0.001 (Figure). Five-year mortality was significantly higher in ICD patients on dialysis than those not on dialysis (42.2% vs 23.6%), p<0.001 (Figure). Factors associated with increased risk of all-cause mortality among ICD patients on dialysis were age ≥65 years at time of implantation (reference: age <65 years) (HR 1.90 [95% CI: 1.13–3.19]), primary prophylactic ICD (HR 1.81 [95% CI 1.08–3.05]), and diabetes (HR 1.87 [95% CI 1.14–3.07]). Sex, ischaemic heart disease, heart failure, stroke, chronic obstructive pulmonary disease, and malignancy were not associated with the risk of mortality (p>0.05 for all). Cardiovascular causes of death were common both in patients with- and without dialysis, 69.6% and 60.0%, respectively. Conclusion Five-year mortality in ICD patients on dialysis was 42% and twice as high compared with ICD patients not on dialysis. Age ≥65 years, primary prophylactic indication, and diabetes were factors associated with increased mortality. Careful evaluation of the potential benefit from an ICD implantation in dialysis patients is important considering the overall high mortality rates. Funding Acknowledgement Type of funding source: None

Author(s):  
Tiffany E Gooden ◽  
Mike Gardner ◽  
Jingya Wang ◽  
Kate Jolly ◽  
Deirdre A Lane ◽  
...  

Abstract Background Evidence on the risk of cardiovascular disease (CVD) and CVD risk factors in people with HIV (PWH) is limited. We aimed to identify the risk of composite CVD, individual CVD events and common risk factors. Methods This was a nationwide population-based cohort study comparing adult (≥18y) PWH with HIV-negative individuals matched on age, sex, ethnicity and location. The primary outcome was composite CVD comprising stroke, myocardial infarction (MI), peripheral vascular disease (PVD), ischaemic heart disease and heart failure. The secondary outcomes were individual CVD events, hypertension, diabetes, chronic kidney disease (CKD) and all-cause mortality. Cox proportional hazard regression models were used to examine the risk of each outcome. Results We identified 9233 PWH and 35721 HIV-negative individuals. An increased risk was found for composite CVD (adjusted hazard ratio [aHR] 1.50, 95% CI 1.28-1.77), stroke (aHR 1.42, 95% CI 1.08-1.86), ischaemic heart disease (aHR 1.55, 95% CI 1.24-1.94), hypertension (aHR 1.37, 95% CI 1.23-1.53), type 2 diabetes (aHR 1.28, 95% CI 1.09-1.50), CKD (aHR 2.42, 95% CI 1.98-2.94) and all-cause mortality (aHR 2.84, 95% CI (2.48-3.25). Conclusions PWH have a heightened risk for CVD and common CVD risk factors, reinforcing the importance for regular screening for such conditions.


2000 ◽  
Vol 11 (4) ◽  
pp. 740-746 ◽  
Author(s):  
PRADEEP ARORA ◽  
ANNAMARIA T. KAUSZ ◽  
GREGORIO T. OBRADOR ◽  
ROBIN RUTHAZER ◽  
SAMINA KHAN ◽  
...  

Abstract. Factors driving inpatient and outpatient utilization were studied among patients who began dialysis for chronic renal failure at the New England Medical Center (NEMC) between 1992 and 1997. Clinical, laboratory, and hospital resource utilization data were obtained from patient records and electronic databases. There were 2.2 hospitalizations and 14.8 hospital days per patient year at risk (PYAR). The number of hospitalizations and hospital days per PYAR were higher in the first 3 mo of initiating dialysis (4.3 and 28.3, respectively) compared to after 3 mo (1.9 and 12.9, respectively). Factors associated with increased risk of hospital days within the first 3 mo included non-health maintenance organization insurance, ischemic heart disease, late referral to the nephrologist, and use of temporary vascular access for the first dialysis. Patients with ischemic heart disease and who received dialysis during the years 1992-1994 compared with 1996-1997 had an increased risk of hospital days after 3 mo of initiating dialysis. There were 16.6 outpatient visits per PYAR, with significant differences in utilization between the first 3 mo and after 3 mo of initiating dialysis. Thus, hospital utilization was significantly higher in the first 3 mo compared to after 3 mo, and factors associated with hospital utilization depended on duration of dialysis. In particular, delayed referral to the nephrologist and lack of permanent vascular access were independently associated with increased risk of hospital utilization in the first 3 mo of dialysis. Greater attention to timely referral to the nephrologist and timely placement of vascular access could result in reduced utilization and cost savings.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Alhakak ◽  
L Ostergaard ◽  
J.H Butt ◽  
M Vinther ◽  
B.T Philbert ◽  
...  

Abstract Background Current guidelines do not recommend implantable cardioverter defibrillator (ICD) implantation in patients with an estimated survival probability of less than one year. There is still an unmet need to identify patients who are unlikely to benefit from an ICD. Purpose We determined one-year mortality after ICD implantation and associated risk factors of one-year mortality. Methods Using Danish nationwide registries from 2000–2016, we identified patients ≥18 years old undergoing first-time ICD implantation for primary or secondary prevention. Patients were followed for up to one-year from time of ICD implantation. Risk factors associated with one-year mortality after time of ICD implantation were evaluated in multivariable logistic regression models. Results A total of 13,344 patients underwent first-time ICD implantation (median age: 66 years [25th-75th percentile 58–72 years], male=81.3%, secondary prevention=54.6%), of which 647 died (4.8%) within one year of follow-up. Compared with ICD patients who survived for one year, those who died were significantly older (72 years vs. 66 years, p<0.001) and had more comorbidities, including congestive heart failure (70.8% vs. 63.4%), atrial fibrillation (36.6% vs. 23.6%), diabetes (30.8% vs. 19.9%), chronic obstructive pulmonary disease (COPD) (17.0% vs. 8.2%), chronic renal disease (13.0% vs. 4.4%), malignancy (9.9% vs. 5.4%), and dialysis (7.3% vs. 2.4%) (p<0.001 for all). Results from the multivariable logistic regression model are depicted in the Figure. There was a graded relationship between age and one-year mortality, with a greater risk of all-cause mortality with increasing age. In addition, dialysis, chronic renal disease, COPD, malignancy, diabetes, and congestive heart failure were strongly associated with increased risk of one-year all-cause mortality. However, ischaemic heart disease was associated with a lower risk of all-cause mortality (Figure). The one-year risk of death was 13.2% for both patients receiving dialysis and patients with chronic renal disease, respectively. The majority of deaths within one year were attributed to cardiovascular causes (408/647, 63.1%) of which chronic ischaemic heart disease (68/647, 10.5%), acute myocardial infarction (50/647, 7.7%), and atherosclerosis (40/647, 6.2%) were the most common. The most common non-cardiovascular cause of death was malignancy (10.5%). Conclusion In patients with a first-time ICD implantation, 95% survived for more than one year after implantation. While low mortality rates are indicative of relevant patient selection for ICD implantation, advanced age, dialysis, and several comorbidities were all strongly associated with increased one-year mortality, whereas ischaemic heart disease was associated with a lower risk of one-year mortality. Potential benefit of an ICD in such patients should be carefully evaluated before implantation. Funding Acknowledgement Type of funding source: None


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
C Byrne ◽  
O Ahlehoff ◽  
F Pedersen ◽  
S Pehrson ◽  
J C Nielsen ◽  
...  

Abstract Background Implantable defibrillators reduce mortality in patients with ischaemic heart failure. The recent Danish Study to Assess the Efficacy of Implantable Cardioverter Defibrillators in Patients With Non-Ischaemic Systolic Heart Failure on Mortality (DANISH) found no overall effect on all-cause mortality with ICD implantation. Coronary artery disease (CAD) as the cause of heart failure had to be ruled out prior to inclusion into DANISH, but patients could have diffuse atherosclerosis, one- or two-vessel disease on the qualifying coronary angiogram if the investigator did not find that the degree of CAD could explain the severely reduced left ventricular ejection fraction. It is unknown if concomitant coronary atherosclerosis is related to outcome in patients with non-ischaemic cardiomyopathy and whether the effect of implanting an ICD is different in patients with non-ischaemic cardiomyopathy and coronary atherosclerosis. Purpose The aim of this study was to investigate the association between coronary atherosclerosis and all-cause mortality in patients with non-ischaemic systolic heart failure and the effect of ICD implantation in these patients. Methods Of the 1116 patients from the DANISH study, 838 patients with available coronary angiography data were included in this subgroup analysis. Patients were considered to have coronary atherosclerosis if the invasive cardiologist described diffuse atherosclerosis or coronary stenosis. We used cox regression to assess the relationship between coronary atherosclerosis and mortality and between ICD implantation and mortality in patients with and without coronary atherosclerosis. Data are presented as hazard ratios with 95% confidence intervals. Results Of the 838 patients, 266 (32%) had coronary atherosclerosis, 216 (81%) of whom were reported as having atherosclerosis without stenoses. Patients with coronary atherosclerosis were significantly older (median age 67 years vs 61 years), more often male (77% vs 70%) and had a higher prevalence of diabetes (30% vs 17%). In univariable analysis, coronary atherosclerosis was a significant predictor of all-cause mortality (HR, 1.41; 95% CI, 1.04–1.91; P=0.03). However, the association between coronary atherosclerosis and all-cause mortality disappeared when adjusting for age, gender and diabetes (HR 1.02, 0.75–1.41, P=0.88). Adjusted hazard ratios are shown in Figure 1. There was no association between ICD treatment and all-cause mortality in patients with or without coronary atherosclerosis (HR 0.94; 0.58–1.52; P=0.79 vs HR 0.82; 0.56–1.20; P=0.30), P for interaction=0.67. Figure 1 Conclusions In patients with non-ischaemic systolic heart failure, the concomitant presence of coronary atherosclerosis was associated with increased mortality. However, this association was not independent of other risk factors. ICD implantation was not associated with mortality risk in patients either with or without concomitant coronary atherosclerosis. Acknowledgement/Funding TrygFonden (Copenhagen, DK), Medtronic (US) and St. Jude Medical (US)


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Amy Groenewegen ◽  
Victor W. Zwartkruis ◽  
Betül Cekic ◽  
Rudolf. A. de Boer ◽  
Michiel Rienstra ◽  
...  

Abstract Background Diabetes has strongly been linked to atrial fibrillation, ischaemic heart disease and heart failure. The epidemiology of these cardiovascular diseases is changing, however, due to changes in prevalence of obesity-related conditions and preventive measures. Recent population studies on incidence of atrial fibrillation, ischaemic heart disease and heart failure in patients with diabetes are needed. Methods A dynamic longitudinal cohort study was performed using primary care databases of the Julius General Practitioners’ Network. Diabetes status was determined at baseline (1 January 2014 or upon entering the cohort) and participants were followed-up for atrial fibrillation, ischaemic heart disease and heart failure until 1 February 2019. Age and sex-specific incidence and incidence rate ratios were calculated. Results Mean follow-up was 4.2 years, 12,168 patients were included in the diabetes group, and 130,143 individuals in the background group. Incidence rate ratios, adjusted for age and sex, were 1.17 (95% confidence interval 1.06–1.30) for atrial fibrillation, 1.66 (1.55–1.83) for ischaemic heart disease, and 2.36 (2.10–2.64) for heart failure. Overall, incidence rate ratios were highest in the younger age categories, converging thereafter. Conclusion There is a clear association between diabetes and incidence of the major chronic progressive heart diseases, notably with heart failure with a more than twice increased risk.


2021 ◽  
pp. svn-2020-000693
Author(s):  
Yanan Qiao ◽  
Siyuan Liu ◽  
Guochen Li ◽  
Yanqiang Lu ◽  
Ying Wu ◽  
...  

Background and purposeThe role of depression in the development and outcome of cardiometabolic diseases remains to be clarified. We aimed to examine the extent to which depressive symptoms affect the transitions from healthy to diabetes, stroke, heart disease and subsequent all-cause mortality in a middle-aged and elderly European population.MethodsA total of 78 212 individuals aged ≥50 years from the Survey of Health Ageing and Retirement in Europe were included. Participants with any baseline cardiometabolic diseases including diabetes, stroke and heart disease were excluded. Depressive symptoms were measured by the Euro-Depression scale at baseline. Participants were followed up to determine the occurrence of cardiometabolic diseases and all-cause mortality. We used multistate models to estimate the transition-specific HRs and 95% CIs after adjustment of confounders.ResultsDuring 500 711 person-years of follow-up, 4742 participants developed diabetes, 2173 had stroke, 5487 developed heart disease and 7182 died. Depressive symptoms were significantly associated with transitions from healthy to diabetes (HR: 1.12, 95% CI: 1.05 to 1.20), stroke (HR: 1.31, 95% CI: 1.18 to 1.44), heart disease (HR: 1.26, 95% CI: 1.18 to 1.34) and all-cause mortality (HR: 1.41, 95% CI: 1.34 to 1.49). After cardiometabolic diseases, depressive symptoms were associated with the increased risk of all-cause mortality in patients with diabetes (HR: 1.54, 95% CI: 1.25 to 1.89), patients who had stroke (HR: 1.29, 95% CI: 1.03 to 1.61) and patients with heart disease (HR: 1.21, 95% CI: 1.02 to 1.44).ConclusionsDepressive symptoms increase the risk of diabetes, stroke and heart disease, and affect the risk of mortality after the onset of these cardiometabolic conditions. Screening and treatment of depressive symptoms may have profound implications for the prevention and prognosis of cardiometabolic diseases.


2016 ◽  
Vol 62 (4) ◽  
pp. 593-604 ◽  
Author(s):  
Anne-Marie K Jepsen ◽  
Anne Langsted ◽  
Anette Varbo ◽  
Lia E Bang ◽  
Pia R Kamstrup ◽  
...  

Abstract BACKGROUND Increased concentrations of remnant cholesterol are causally associated with increased risk of ischemic heart disease. We tested the hypothesis that increased remnant cholesterol is a risk factor for all-cause mortality in patients with ischemic heart disease. METHODS We included 5414 Danish patients diagnosed with ischemic heart disease. Patients on statins were not excluded. Calculated remnant cholesterol was nonfasting total cholesterol minus LDL and HDL cholesterol. During 35836 person-years of follow-up, 1319 patients died. RESULTS We examined both calculated and directly measured remnant cholesterol; importantly, however, measured remnant cholesterol made up only 9% of calculated remnant cholesterol at nonfasting triglyceride concentrations <1 mmol/L (89 mg/dL) and only 43% at triglycerides >5 mmol/L (443 mg/dL). Multivariable-adjusted hazard ratios for all-cause mortality compared with patients with calculated remnant cholesterol concentrations in the 0 to 60th percentiles were 1.2 (95% CI, 1.1–1.4) for patients in the 61st to 80th percentiles, 1.3 (1.1–1.5) for the 81st to 90th percentiles, 1.5 (1.1–1.8) for the 91st to 95th percentiles, and 1.6 (1.2–2.0) for patients in the 96th to 100th percentiles (trend, P < 0.001). Corresponding values for measured remnant cholesterol were 1.0 (0.8–1.1), 1.2 (1.0–1.4), 1.1 (0.9–1.5), and 1.3 (1.1–1.7) (trend, P = 0.006), and for measured LDL cholesterol 1.0 (0.9–1.1), 1.0 (0.8–1.2), 1.0 (0.8–1.3), and 1.1 (0.8–1.4) (trend, P = 0.88). Cumulative survival was reduced in patients with calculated remnant cholesterol ≥1 mmol/L (39 mg/dL) vs <1 mmol/L [log-rank, P = 9 × 10−6; hazard ratio 1.3 (1.2–1.5)], but not in patients with measured LDL cholesterol ≥3 mmol/L (116 mg/dL) vs <3 mmol/L [P = 0.76; hazard ratio 1.0 (0.9–1.1)]. CONCLUSIONS Increased concentrations of both calculated and measured remnant cholesterol were associated with increased all-cause mortality in patients with ischemic heart disease, which was not the case for increased concentrations of measured LDL cholesterol. This suggests that increased concentrations of remnant cholesterol explain part of the residual risk of all-cause mortality in patients with ischemic heart disease.


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