Two decades after coronary radiation therapy: A single center longitudinal clinical study.

OBJECTIVES: The aim of this study was to evaluate the very long-term clinical outcome after radioactive stent (RS) implantation and intracoronary ß radiation brachytherapy (IRBT). BACKGROUND: Radioactive stents (RS) and intracoronary ß radiation brachytherapy (IRBT) were introduced to prevent restenosis after percutaneous coronary intervention (PCI). Both techniques were associated with a higher incidence of major adverse cardiac events (MACE) in the short and intermediate-term follow up as compared to conventional PCI. METHODS: One hundred and thirty-three patients received radioactive stents (32 P) and 301 patients were treated with IRBT adjunctive to PCI. These groups were propensity matched to respectively 266 and 602 control patients who were treated with routine PCI during the same inclusion period. Endpoints were all-cause mortality and MACE, defined as all-cause death, any myocardial infarction or any revascularization. RESULTS: Median follow-up duration was 17 years. All-cause mortality rates were similar in all groups. Adjusted hazard ratios for MACE and mortality in the RS cohort were 1.55 (95% CI 1.20-2.00) and 0.92 (95% CI 0.63-1.34), respectively. Adjusted hazard ratios for MACE and all-cause mortality in the IRBT cohort were 1.41 (95% CI 1.18-1.67) and 0.95 (95% CI 0.74-1.21), respectively. The difference in MACE rates was predominantly driven by coronary revascularizations in both groups, with a higher MI rate in the IRBT group as well. CONCLUSIONS: Coronary radiation therapy was associated with early increased MACE rates, but the difference in MACE rates decreased beyond 2 years, resulting in a comparable long-term clinical outcome. Importantly, no excess in mortality was observed.

Association Between Exercise Capacity and Health-Related Quality of Life During and After Cardiac Rehabilitation in Acute Coronary Syndrome Patients: A Substudy of the OPTICARE Randomized Controlled Trial.

OBJECTIVE: To examine the strength of the association between exercise capacity and health-related quality of life (HRQOL) during and after cardiac rehabilitation (CR) in patients with acute coronary syndrome (ACS) who completed CR. DESIGN: Prospective cohort study. SETTING: Outpatient CR center. PARTICIPANTS: Patients (N=607) with ACS who completed CR. INTERVENTIONS: Multidisciplinary 12-week exercise-based CR program. MAIN OUTCOME MEASURES: At baseline (pre-CR), the 6-Minute Walk Test (6MWT) was performed to determine exercise capacity, and the MacNew Heart Disease Health-related Quality of Life questionnaire was used to assess HRQOL. Measurements were repeated immediately after completion of CR (post-CR): at 12 months and 18 months follow-up. Multivariable linear regression, including an interaction term for time and exercise capacity, was applied to study the association between exercise capacity and HRQOL at different time points relative to CR, whereas model parameters were estimated by methods that accounted for dependency of repeated observations within individuals. RESULTS: Mean age in years ± SD was 58±8.9 and 82% of participants were male. Baseline mean 6MWT distance in meters ± SD was 563±77 and median (25th-75th percentile) global HRQOL was 5.5 (4.6-6.1) points. Mean 6MWT distance (P<.001) and the global (P<.001), physical (P<.001), emotional (P<.001) and social (P<.001) domains of HRQOL improved significantly during CR and continued to improve during follow-up post-CR. Independent of the timing relative to CR (ie, pre-CR, post-CR, or during follow-up), a difference of 10 m 6MWT distance was associated with a mean difference in the global HRQOL domain of 0.007 (95% confidence interval [CI], 0.001-0.014) points (P=.029) and a mean difference in the physical domain of 0.009 (95% CI, 0.001-0.017) points (P=.023). CONCLUSIONS: Better exercise capacity was significantly associated with higher scores on the global and physical domains of HRQOL, irrespective of the timing relative to CR, albeit these associations were weak. Hence, CR programs in secondary prevention should continue to aim at enhancing both HRQOL and exercise capacity.

Prediction of long-term (> 10 year) cardiovascular outcomes in heart transplant recipients: Value of stress technetium-99m tetrofosmin myocardial perfusion imaging.

BACKGROUND: Myocardial perfusion imaging (MPI) using single-photon emission computed tomography (SPECT) is useful in the evaluation of cardiac allograft vasculopathy (CAV) in heart transplant (HTx) recipients. The current study evaluated the long-term prognostic value of stress SPECT MPI for predicting all-cause mortality and cardiac events in HTx recipients. METHODS: The study population consisted of 166 HTx recipients (mean age 54 ± 10 years, 84% male) who underwent exercise or dobutamine stress 99mTc-tetrofosmin SPECT MPI for the assessment of CAV. An abnormal SPECT MPI was defined as the presence of a fixed or a reversible perfusion defect. Endpoints were all-cause mortality, cardiac mortality, and non-fatal myocardial infarction (MI). RESULTS: MPI abnormalities were detected in 55 patients (33%), including fixed defects in 28 patients (17%), partially reversible in 17 patients (10%), and completely reversible defects in 10 patients (6%). During a median follow-up of 12.8 years (range 0-15, mean follow-up 9.5 years), 109 (66%) patients died (all-cause mortality), of which 67 (40%) were due to cardiac causes. A total of 5 (3%) patients experienced a non-fatal MI. HTx recipients with a normal stress 99mTc-tetrofosmin SPECT MPI had a significantly better prognosis as compared with those with an abnormal study, up to 5 years after the initial test. The presence of a reversible perfusion defect was a significant predictor of all-cause mortality, cardiac mortality, and major cardiac events, during the entire follow-up period. CONCLUSIONS: Stress 99mTc-tetrofosmin SPECT MPI provides valuable prognostic information for the prediction of long-term outcome in HTx recipients. Patients with a normal stress 99mTc-tetrofosmin SPECT MPI have a significantly better prognosis as compared with those with an abnormal study, up to 5 years after initial testing.

A secondary analysis of data from the OPTICARE randomized controlled trial investigating the effects of extended cardiac rehabilitation on functional capacity, fatigue, and participation in society.

OBJECTIVE: In this secondary analysis of data from the OPTICARE trial, we compared the effects of two behavioral interventions integrated into cardiac rehabilitation to standard rehabilitation with regard to functional capacity, fatigue, and participation in society. DESIGN: This is a randomized controlled trial. SETTING: This study was conducted in a cardiac rehabilitation setting. SUBJECTS: A total of 740 patients with acute coronary syndrome were recruited for this study. INTERVENTIONS: Patients were randomized to (1) three months of standard rehabilitation; (2) cardiac rehabilitation plus nine months after-care with face-to-face group lifestyle counseling; or (3) cardiac rehabilitation plus nine months after-care with individual lifestyle telephone counseling. MAIN MEASURES: Functional capacity (6-minute walk test), fatigue (Fatigue Severity Scale), and participation in society (Utrecht Scale for Evaluation of Rehabilitation-Participation) were measured at randomization, 3, 12, and 18 months. RESULTS: Additional face-to-face sessions resulted at 12 months in 12.49 m more on the 6-minute walk test compared to standard rehabilitation (P = .041). This difference was no longer present at 18 months. Prevalence of fatigue decreased from 30.2% at baseline to 11.9% at 18 months compared to an improvement from 37.3% to 24.9% after standard rehabilitation (between-group difference: odds ratio = 0.47; P = .010). The additional improvements in functional capacity seemed to be mediated by increases in daily physical activity. No mediating effects were found for fatigue. No additional improvements were seen for participation in society. Additional telephonic sessions did not result in additional intervention effects. CONCLUSION: Extending cardiac rehabilitation with a face-to-face behavioral intervention resulted in additional long-term improvements in fatigue and small improvements in functional capacity up to 12 months. A telephonic behavioral intervention provided no additional benefits.

Occurrence and predictors of acute stent recoil-A comparison between the xience prime cobalt chromium stent and the promus premier platinum chromium stent.

OBJECTIVES: To compare the occurrence of acute stent recoil in two different stent types (platinum chromium and cobalt chromium) and identify the potential predictors of significant acute stent recoil. BACKGROUND: Acute stent recoil is frequently observed after percutaneous coronary intervention and has been associated with in-stent restenosis and in-stent thrombosis. Different stent designs may result in varying degrees of stent recoil. METHODS: From a registry of "all-comers" treated with either the Xience Prime Cobalt Chromium or Promus Premier Platinum Chromium stent, a random sample of 100 patients was drawn. Acute stent recoil was defined as the minimal luminal diameter (MLD) of the last inflated balloon minus the MLD after, divided by the MLD of the last inflated balloon. Significant acute stent recoil was defined as recoil ≥10%. RESULTS: A total of 123 lesions (61 Xience Prime vs 62 Promus Premier) in 100 patients were analyzed. Acute stent recoil of 8.6 ± 4.9% was observed in the Xience Prime group versus 8.7 ± 4.2% in the Promus Premier group, P = 0.970. In a multivariate model for significant acute stent recoil, a stent/vessel ratio ≥1 (hazard ratio 4.64 [1.94-11.12], P = 0.001), a balloon/stent ratio >1 (hazard ratio 3.83 [1.12-13.14], P = 0.032) and direct stenting (hazard ratio 0.42 [0.18-0.96], P = 0.039) were identified as predictors. CONCLUSIONS: No significant differences were observed in the extent of acute stent recoil between the Xience Prime and the Promus Premier stent. A larger stent/vessel ratio, a larger balloon/stent ratio, and direct stenting were associated with significant acute stent recoil ≥10%. © 2017 Wiley Periodicals, Inc.

Development and validation of a risk model for long-term mortality after percutaneous coronary intervention: The IDEA-BIO Study.

OBJECTIVES: We aimed to develop a model to predict long-term mortality after percutaneous coronary intervention (PCI), to aid in selecting patients with sufficient life expectancy to benefit from bioabsorbable scaffolds. BACKGROUND: Clinical trials are currently designed to demonstrate superiority of bioabsorbable scaffolds over metal devices up to 5 years after implantation. METHODS: From 2000 to 2011, 19.532 consecutive patients underwent PCI in a tertiary referral hospital. Patients were randomly (2:1) divided into a training (N = 13,090) and validation (N = 6,442) set. Cox regression was used to identify determinants of long-term mortality in the training set and used to develop a risk model. Model performance was studied in the training and validation dataset. RESULTS: Median age was 63 years (IQR 54-72) and 72% were men. Median follow-up was 3.6 years (interquartile range [IQR] 2.4-6.8). The ratio elective vs. non-elective PCIs was 42/58. During 88,620 patient-years of follow-up, 3,156 deaths occurred, implying an incidence rate of 35.6 per 1,000. Estimated 5-year mortality was 12.9%.Regression analysis revealed age, body mass index, diabetes mellitus, renal insufficiency, prior myocardial infarction, PCI indication, lesion location, number of diseased vessels and cardiogenic shock at presentation as determinants of mortality. The long-term risk model showed good discrimination in the training and validation sets (c-indices 0.76 and 0.74), whereas calibration was appropriate. CONCLUSIONS: A simple risk model, containing 9 baseline clinical and angiographic variables effectively predicts long-term mortality after PCI and may possibly be used to select suitable patients for bioabsorbable scaffolds.

Prediction of 14-year cardiovascular outcomes by dobutamine stress 99mTc-tetrofosmin myocardial perfusion SPECT in elderly patients unable to perform exercise testing.

BACKGROUND: Dobutamine stress myocardial perfusion imaging (MPI) is a useful alternative for the evaluation of coronary artery disease (CAD) in elderly patients who are unable to perform an exercise stress test. However, data on the long-term prognostic value of stress MPI in elderly patients are lacking. Therefore, this study evaluated the long-term prognostic value of dobutamine stress MPI in elderly patients unable to perform an exercise test. METHODS: The study population consisted of 247 elderly patients (mean age 71 ± 5 years) who underwent dobutamine stress single-photon emission computed tomography (SPECT) MPI. An abnormal SPECT study was defined as the presence of fixed and/or reversible perfusion defects. A summed stress score (SSS) was obtained to estimate the extent and severity of perfusion defects. End points during follow-up were all-cause mortality, cardiac mortality, and nonfatal myocardial infarction (MI). RESULTS: During a median follow-up of 14 years (range 12-16), 168 (68%) patients died (all-cause mortality), of which 56 (23%) were due to cardiac causes. Nonfatal MI occurred in 19 (8%) patients. Kaplan-Meier survival curves showed that MPI provided optimal risk stratification in patients with normal and abnormal MPI. Multivariable analysis identified an abnormal MPI as a strong significant predictor of all-cause mortality and cardiac events. A multivariable analysis also revealed that a reversible defect and SSS were strong long-term predictors of cardiac mortality and hard cardiac events. CONCLUSION: Dobutamine stress 99mTc-tetrofosmin SPECT provides incremental prognostic information for the prediction of long-term cardiovascular outcomes in elderly patients, unable to perform exercise testing. Dobutamine stress MPI is useful in risk classifying elderly patients.

Cardiac stress imaging for the prediction of very long-term outcomes: Dobutamine stress echocardiography or dobutamine 99mTc-sestamibi SPECT?

BACKGROUND: Both dobutamine stress echocardiography (DSE) and myocardial perfusion imaging (MPI) using single-photon emission computed tomography (SPECT) are frequently used for cardiac risk stratification. The long-term relative prognostic value of these modalities has not been studied. Therefore, this study evaluated the long-term prognostic value of DSE compared to MPI in patients unable to perform exercise testing. METHODS: This prospective, single center study included 301 patients (mean age 59 ± 12 years, 56% men) unable to perform exercise tests who underwent DSE and dobutamine stress 99mTc-sestamibi MPI. End points during follow-up were all-cause mortality, cardiac mortality, and nonfatal myocardial infarction (MI). Univariable and multivariable Cox proportional hazards regression models were used to identify independent predictors of outcome. The probability of survival was calculated using the Kaplan-Meier method. RESULTS: A total of 182 patients (60%) had an abnormal DSE and 198 (66%) patients had an abnormal MPI. The agreement between DSE and MPI was 82% (κ = 0.62). During a median follow-up of 14 years (range 5-18), 172 deaths (57%) occurred, of which 72 (24%) were due to cardiac causes. Nonfatal MI occurred in 46 patients (15%). The multivariable analysis demonstrated that an abnormal DSE was a significant predictor of cardiac mortality (HR 2.35, 95% CI [1.17-4.73]) and hard cardiac events (HR 2.11, 95% CI [1.25-3.57]). Also, an abnormal MPI result was a significant predictor of cardiac mortality (HR 3.03, 95% CI [1.33-6.95]) and hard cardiac events (HR 2.06, 95% CI [1.12-3.79]). CONCLUSIONS: DSE and MPI are comparable in predicting long-term cardiac mortality and hard cardiac events in patients unable to perform exercise testing.

Ischemia burden on stress SPECT MPI predicts long-term outcomes after revascularization in stable coronary artery disease.

BACKGROUND: It is not entirely clear whether ischemia burden on stress single-photon emission computed tomography (SPECT) effectively identifies patients who have a long-term benefit from coronary revascularization. METHODS: The study population consisted of 719 patients with ischemia on stress SPECT. Early coronary revascularization was defined as percutaneous coronary intervention or coronary artery bypass grafting ≤90 days after SPECT. Patients who underwent late revascularization (>90 days after SPECT) were excluded (n = 164). RESULTS: Of the 538 patients (73% men, mean age 59.8 ± 11 years), 348 patients had low ischemia burden (<3 ischemic segments) and 190 patients had moderate to high ischemia burden (≥3 ischemic segments). A total of 76 patients underwent early revascularization. During a median follow-up of 12 years (range 4-17), 283 patients died of whom 125 due to cardiac causes. Early revascularization was beneficial on all-cause mortality (HR 0.46, 95% CI 0.30-0.46) and cardiac mortality (HR 0.54, 95% CI 0.29-0.99). CONCLUSIONS: Patients with myocardial ischemia on stress SPECT who underwent early revascularization had a lower all-cause mortality and cardiac mortality during long-term follow-up as compared to patients who received pharmacological therapy alone. This difference in long-term outcomes was mainly influenced by the survival benefit of early revascularization in the patients with moderate to high ischemia burden.

Procedural and long-term outcome after catheter ablation of idiopathic outflow tract ventricular arrhythmias: comparing manual, contact force, and magnetic navigated ablation.

Aims: Currently, comparative data on procedural and long-term clinical outcome of outflow tract (OT) idiopathic ventricular arrhythmia (IVA) ablation with manual (MAN), contact force (CF), and magnetic navigation system (MNS) ablation are lacking. The aim of this study was to compare the procedural and long-term clinical outcome of MAN, CF, and MNS ablation of OT IVAs. Methods and results: Seventy-three patients (31 MAN, 17 CF, and 25 MNS patients; consecutive per group) with OT IVA, who underwent catheter ablation in our centre were analysed. Procedural success rates (success at the end of the procedure), procedural data and long-term follow-up data were compared. Baseline patient demographics were comparable. Procedural success rates were similar (MAN 81%, 71% CF, and MNS 92%; P = 0.20). Median fluoroscopy time was shorter in the MNS group: MAN 29 (16-38), CF 37 (21-46), and MNS 13 (10-20) min (P = 0.002 for MNS vs. CF and MAN). The overall complication rate was: MAN 10%, CF 0%, and MNS 0% (P = 0.12). Median follow-up was: MAN 2184 (1672-2802), CF 1721 (1404-1913), and MNS 3031 (2524-3286) days (P <0.001). Recurrences occurred in MAN 46%, CF 50%, and MNS 46% (P = 0.97). Repeat procedures were performed in MAN 20%, CF 40%, and MNS 33% (P = 0.32). Conclusion: Procedural and long-term clinical outcome of OT IVA ablation are equal for MAN, CF, and MNS. MNS has a favourable procedural safety profile due to the shorter fluoroscopy time compared with MAN and CF.

Changes in Physical Activity and Sedentary Behavior During Cardiac Rehabilitation.

OBJECTIVE: To objectively measure changes in both moderate-to-vigorous physical activity (MVPA) and sedentary behavior (SB) during and after standard cardiac rehabilitation (CR). DESIGN: Prospective cohort study. SETTING: Outpatient CR center. PARTICIPANTS: Patients (N=135) with acute coronary syndrome (ACS) who completed CR. INTERVENTIONS: Multidisciplinary CR according to current guidelines. MAIN OUTCOME MEASURES: The proportion of time spent in MVPA and SB was objectively measured with an accelerometer. The distribution of time in MVPA and SB was also determined (eg, average length of time periods spent in MVPA and SB). All measurements were obtained before CR, after CR, and at 1-year follow-up. RESULTS: Patients' time in MVPA during waking hours increased by .65% (≈5min) during CR (P=.002) and remained increased at 1-year follow-up (P=.037). The MVPA distribution did not change. During CR, time spent in SB decreased by 2.49% (≈22min; P<.001), and SB time became more fragmented with more breaks and shorter SB periods (P<.001). These SB improvements were maintained at 1-year follow-up (P<.001). CONCLUSIONS: Patients with ACS achieved a small improvement in MVPA time during CR, but MVPA distribution remained unchanged. More substantial improvements occurred for SB time and distribution. However, by the end of CR, patients still spent relatively little time in MVPA and a long time in SB, which is known to be detrimental to cardiovascular health. Although CR programs have the potential to improve physical behavior, our findings highlight the need to develop adjusted CR targets that address the amount and distribution of MVPA and SB.

Psychosocial needs of children undergoing an invasive procedure for a CHD and their parents.

OBJECTIVE: The aim of this study was to investigate the psychosocial needs of both parents of children with CHD (aged 0-18 years) and patients themselves (aged 8-18 years) in the week before cardiac surgery or a catheter intervention. Patients Eligible participants included all consecutive patients (0-18 years) scheduled to undergo cardiac surgery or a catheter intervention in our hospital between March, 2012 and July, 2013. Psychosocial needs were assessed using a disease-specific questionnaire designed for this study, consisting of a 83-item parent version and a 59-item child version (for children ⩾8 years), each covering five domains: physical/medical, emotional, social, educational/occupational, and health behaviour; two items assessed from whom and in what format psychosocial care was preferred. Quality of life was also assessed. Interventions If parents/patients reported a need for psychosocial care, referral to adequate mental health-care professionals was arranged. RESULTS: More than 40% of participating parents and >50% of participating children reported a need for psychosocial care on each of the five domains. Needs for psychosocial care for parents themselves were highest for those with children aged 0-12 years. Parents and patients report clear preferences when asked from whom and in what format they would like to receive psychosocial care. Quality of life was relatively high for both parents and patients. Psychosocial care interventions in our hospital increased significantly after the implementation of this study. CONCLUSIONS: Results show that psychosocial care is rated as (very) important by both parents and children during an extremely stressful period of their life.

Longitudinal development of psychopathology and subjective health status in CHD adults: a 30- to 43-year follow-up in a unique cohort.

OBJECTIVE: To determine longitudinal changes in psychopathology in a cohort of patients 30-43 years after their first cardiac surgery for Congenital Heart Disease (CHD) in childhood, to compare outcomes of the 30- to 43-year follow-up with normative data, and to identify medical predictors for psychopathology. METHODS: This study is the third follow-up of this cohort. The first and second follow-ups of this same cohort were conducted in 1990 and 2001, respectively. At all three follow-ups, psychopathology was assessed with standardised, parallel questionnaires. In 2011, subjective health status was assessed by the Short Form-36. Medical predictor variables were derived from medical examinations and medical records. RESULTS: In this third follow-up, a total of 252 patients participated. Of these, 152 patients participated in all three follow-ups. Over a 30-year period, proportions of patients showing psychopathology decreased significantly. At the 30- to 43-year follow-up, overall outcomes on psychopathology for the CHD sample were similar or even better compared with normative groups. Subjective health status was also better compared with normative data. No differences were found between cardiac diagnostic groups. Medical variables that predicted the course of psychopathology over time were as follows: the scar, as judged by the patient, results of the first cardiac surgery, and the number of hospitalisations. CONCLUSIONS: Over a 30-year period, psychopathology decreased in patients with CHD. Levels of psychopathology in these patients, who are now aged between 30 and 54 years, were comparable or even better than normative data.

Unnatural history of tetralogy of Fallot: prospective follow-up of 40 years after surgical correction.

BACKGROUND: Prospective data on long-term survival and clinical outcome beyond 30 years after surgical correction of tetralogy of Fallot are nonexistent. METHODS AND RESULTS: This longitudinal cohort study consists of the 144 patients with tetralogy of Fallot who underwent surgical repair at <15 years of age between 1968 and 1980 in our center. They are investigated every 10 years. Cumulative survival (data available for 136 patients) was 72% after 40 years. Late mortality was due to heart failure and ventricular fibrillation. Seventy-two of 80 eligible survivors (90%) participated in the third in-hospital investigation, consisting of ECG, Holter, echocardiography, cardiopulmonary exercise testing, N-terminal pro-brain natriuretic peptide measurement, cardiac magnetic resonance (including dobutamine stress testing), and the Short Form-36 questionnaire. Median follow-up was 36 years (range, 31-43 years). Cumulative event-free survival was 25% after 40 years. Subjective health status was comparable to that in the normal Dutch population. Although systolic right and left ventricular function declined, peak exercise capacity remained stable. There was no progression of aortic root dilation. A previous shunt operation, low temperature during surgery, and early postoperative arrhythmias were found to predict late mortality (hazard ratio, 2.9, 1.1, and 2.5, respectively). An increase in QRS duration and a deterioration of exercise tolerance and ventricular dysfunction did not predict mortality. Insertion of a transannular patch was a predictor for late arrhythmias (hazard ratio, 4.0; 95% confidence interval, 1.2-13.4). CONCLUSIONS: Although many patients needed a reoperation or developed arrhythmias, late mortality was low, and the clinical condition and subjective health status of most patients remained good. Previous shunt, low temperature during surgery, and early postoperative arrhythmias were found to predict late mortality.

Trends in the occurrence of new conduction abnormalities after transcatheter aortic valve implantation.

OBJECTIVES: The aim of the study was to investigate trends over time in the occurrence of left bundle branch block (LBBB) and permanent pacemaker implantation (PPI) after transcatheter aortic valve implantation (TAVI) with the Medtronic CoreValve System (MCS) and Edwards SAPIEN Valve (ESV). BACKGROUND: TAVI-induced conduction abnormalities (TAVI-CAs) such as LBBB and the need for PPI are frequent postoperative complication. New techniques, procedural refinements, and increased awareness are focused on the reduction of these abnormalities. METHODS: Electrocardiograms of 549 patients without preprocedural LBBB and/or pacemaker were assessed to determine the frequency and nature of TAVI-CAs. To study the effect of experience, patients were subdivided per center into tertiles based on the number of procedures. Univariate and multivariate logistic regression was used to study predictors of TAVI-induced LBBB (TAVI-LBBB) and PPI. RESULTS: TAVI-LBBB occurred in 185 patients (33.7%) and significantly decreased over time, from 42.6% to 27.3% (P=0.006). This effect was only significant after implantation of the MCS (59.6% vs. 46.5% vs. 31.1%, P=0.001, ESV: 22.6% vs. 13.1% vs. 24.8%, P=0.11). Between tertiles there was no difference in the frequency of PPI after TAVI (n=73, 13.1% vs. 14.8% vs. 12%, P=0.74). Multivariate analysis revealed that, independent from valve type, depth of implantation was the only significant predictor of TAVI-LBBB (OR [95% C.I.]: 1.16 [1.10-1.24], P<0.001). In case of PPI pre-existing RBBB (OR [95% C.I.]: 7.22 [3.28-15.88], P<0.001) was the only significant predictor. CONCLUSIONS: Over time the frequency of LBBB after TAVI decreased significantly, especially in patients undergoing TAVI with the MCS. Experience and the subsequent reduction in depth of implantation seem responsible for this reduction. Contrary to TAVI-LBBB, the incidence of PPI remained unchanged over time and was not affected by experience. Although experience has led to a decrease in new CAs after TAVI, elucidation of pathophysiologic mechanisms underlying these CAs and subsequent changes in patient stratification, valve design and the procedure are needed to further reduce this complication.

Prediction of 14-year outcomes in patients with a limited exercise capacity: Utility of dobutamine myocardial perfusion imaging in a high-risk population.

OBJECTIVE: Despite multiple studies on the diagnostic and prognostic use of dobutamine myocardial perfusion imaging (MPI), information on its long-term prognostic value is scarce. The aim of this study was to assess the value of this technique for the prediction of very long-term outcome. METHODS: A total of 721 patients with limited exercise capacity underwent dobutamine MPI for the evaluation of suspected or known coronary artery disease. 719 of 721 patients attended follow-up (99.7%). Twenty-eight patients who underwent early coronary revascularization were excluded from analysis. Endpoints were all-cause mortality, cardiac death, nonfatal infarction, and coronary revascularization. Kaplan-Meier survival curves were constructed, and univariate and multivariate analyses were performed to identify predictors of long-term outcome. RESULTS: The mean age of patients was 60 ± 11 years, and 61% were male. Myocardial perfusion abnormalities were present in 381 patients (55%) and included fixed defects in 190 patients (27%) and reversible defects in 191 patients (28%). During a median follow-up time of 14 years (range 0-16), 295 deaths occurred (43%), of which 158 were cardiac deaths (23%). Nonfatal myocardial infarction occurred in 35 (5%), and late coronary revascularization was performed on 133 patients (19%). An abnormal dobutamine MPI provided significant prognostic information for prediction of cardiac death, hard cardiac events, and MACE, after adjustment for significant clinical variables and stress test variables. CONCLUSIONS: Dobutamine MPI provides incremental prognostic information for the prediction of cardiovascular outcomes in patients with limited exercise capacity. The long-term prognosis of patients with limited exercise capacity who have an abnormal dobutamine MPI is significantly worse than those with a normal MPI.

The Effect of Elapsed Time from Myocardial Infarction on Mortality and Major Adverse Cardiac and Cerebrovascular Events in ICD Patients.

BACKGROUND: Despite the effectiveness of implantable cardioverter defibrillator (ICD) therapy in reducing mortality, the optimal timing of ICD implantation after myocardial infarction (MI) remains inconclusive. The aim of this study is to evaluate the association of elapsed time from MI to ICD implantation on mortality and major adverse cardiac and cerebrovascular events (MACCEs) in patients with prior MI. METHODS: We studied 974 patients who underwent a first ICD implantation between October 1998 and August 2011. The median time from MI to ICD implantation was 7.2 years. Elapsed time from MI to ICD was categorized into tertiles (<2.5 years, 2.5-12.1 years, >12.1 years). Additionally, the time from most recent MI to ICD implantation was dichotomized at 18 months. RESULTS: During a median follow-up of 3.4 years, 287 patients died. Cumulative mortality rates at 3 years, 5 years, and 8 years were 19%, 29%, 47%, respectively. In univariate analysis, there was a significant difference in mortality for patients in the highest tertile compared to those in the lowest tertile (hazard ratio: 1.50; 95% confidence interval: 1.12-2.02; P = 0.007). After adjusting for baseline characteristics, there was no association between time from MI and mortality. At 8-year follow-up, the cumulative MACCE rate excluding mortality was 22%. No association between time from MI and MACCE was found. CONCLUSION: In this study, we found no association between the elapsed time from MI to ICD implantation and 8-year all-cause mortality or MACCE in post-MI ICD patients.

Participation in society in patients with coronary artery disease before and after cardiac rehabilitation.

OBJECTIVES: To assess changes in participation in society (frequency, restrictions, satisfaction) during and after cardiac rehabilitation (CR) and to assess associations between participation and heath-related quality of life (HRQOL). DESIGN: Prospective cohort study. SETTING: Outpatient CR center. PARTICIPANTS: Patients with coronary artery disease (N=121; mean age, 57y; 96 men [79%]). INTERVENTIONS: Multidisciplinary CR. MAIN OUTCOME MEASURES: Participation in society was assessed with the Utrecht Scale for Evaluation of Rehabilitation-Participation and HRQOL with the MacNew Heart Disease health-related quality of life questionnaire. All measurements were performed pre-CR, post-CR, and 1 year after the start of CR. RESULTS: Frequency of participation did not change during and after CR. The proportion of patients experiencing restrictions in participation decreased from 69% pre-CR to 40% post-CR (P<.001) and 29% at 1 year (P<.001 vs post-CR). Pre-CR, 71% of patients were dissatisfied with their participation. This improved to 49% post-CR (P<.001) and 53% at 1 year (P<.001 vs pre-CR). Experienced restrictions explained 5% to 7% of the improvement in HRQOL during CR and satisfaction with participation explained 10% to 19%. CONCLUSIONS: Participation in society improves in patients undergoing CR. Despite these improvements, the presence of coronary artery disease is associated with persistent restrictions and dissatisfaction with participation. Because experienced restrictions and dissatisfaction are related to changes in HRQOL it is important to address these aspects of participation during CR.

Parental mental health moderates the efficacy of exercise training on health-related quality of life in adolescents with congenital heart disease.

To evaluate the moderating influence of parental variables on changes in health-related quality of life (HRQoL) in adolescents with Tetralogy of Fallot (ToF) or a Fontan circulation after participation in standardized exercise training. A multicenter randomized controlled trail in which 56 patients, aged 10-15, were randomly allocated (stratified by age, gender, and congenital heart disease) to a 12-week period with either: (a) 3 times per week standardized exercise training or (b) care-as-usual (randomization ratio 2:1). Adolescents and their parents filled in online questionnaires at baseline and at 12-week follow-up. In this randomized controlled trail, primary analyses involved influence of parental mental health and parental social support for exercise on changes in the TNO/AZL Child Quality of Life Questionnaire Child Form at follow-up. Secondary analyses concerned comparing levels of parental characteristics with normative data. Compared with controls, adolescents in the exercise group reported a decrease in social functioning when their parents had more anxiety/insomnia or severe depression themselves. Adolescents also reported a decrease in social functioning when their parents showed poorer overall mental health themselves. Parents reported comparable or even better mental health compared with normative data. The effect of a standardized exercise program on HRQoL changes in adolescents with ToF or a Fontan circulation is moderated by parental mental health, more specifically by parental anxiety/insomnia and severe depression. The trial registration number of this article is NTR2731 ( www.trialregister.nl ).

The natural and unnatural history of the Mustard procedure: long-term outcome up to 40 years.

AIMS: To describe long-term survival, clinical outcome and ventricular systolic function in a longitudinally followed cohort of patients after Mustard repair for transposition of the great arteries (TGA). There is serious concern about the long-term outcome after Mustard repair. METHODS AND RESULTS: This longitudinal single-centre study consisted of 91 consecutive patients, who underwent Mustard repair before 1980, at age <15 years, and were evaluated in-hospital every 10 years. Survival status was obtained of 86 patients. Median follow-up was 35 (IQR 34-38) years. Cumulative survival was 84% after 10 years, 80% after 20 years, 77% after 30 years, and 68% after 39 years. Cumulative survival free of events (i.e. heart transplantation, arrhythmias, reintervention, and heart failure) was 19% after 39 years. Reinterventions were mainly required for baffle-related problems. Supraventricular and ventricular arrhythmias occurred in 28 and 6% of the patients, respectively. Pacemaker and/or ICD implantation was performed in 39%. Fifty survivors participated in the current in-hospital investigation including electrocardiography, 2D-echocardiography, cardiopulmonary-exercise testing, NT-proBNP measurement, Holter monitoring, and cardiac magnetic resonance. Right ventricular systolic function was impaired in all but one patient at last follow-up, and 14% developed heart failure in the last decade. NT-proBNP levels [median 31.6 (IQR 22.3-53.2) pmol/L] were elevated in 92% of the patients. Early postoperative arrhythmias were a predictor for late arrhythmias [HR 3.8 (95% CI 1.5-9.5)], and development of heart failure [HR 8.1 (95% CI 2.2-30.7)]. Also older age at operation was a predictor for heart failure [HR 1.26 (95% CI 1.0-1.6)]. CONCLUSION: Long-term survival after Mustard repair is clearly diminished and morbidity is substantial. Early postoperative arrhythmias are a predictor for heart failure and late arrhythmias.