Publications by authors named "Dominic Enders"

5 Publications

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Maternal and neonatal complications in women with congenital heart disease: a nationwide analysis.

Eur Heart J 2021 Oct 12. Epub 2021 Oct 12.

Department of Cardiology III, Adult Congenital and Valvular Heart Disease, University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany.

Aims: The aim of this study was to provide population-based data on maternal and neonatal complications and outcome in the pregnancies of women with congenital heart disease (CHD).

Methods And Results: Based on administrative data from one of the largest German Health Insurance Companies (BARMER GEK, ∼9 million members representative for Germany), all pregnancies in women with CHD between 2005 and 2018 were analysed. In addition, an age-matched non-CHD control group was included for comparison and the association between adult CHD (ACHD) and maternal or neonatal outcomes investigated. Overall, 7512 pregnancies occurred in 4015 women with CHD. The matched non-CHD control group included 6502 women with 11 225 pregnancies. Caesarean deliveries were more common in CHD patients (40.5% vs. 31.5% in the control group; P < 0.001). There was no excess mortality. Although the maternal complication rate was low in absolute terms, women with CHD had a significantly higher rate of stroke, heart failure and cardiac arrhythmias during pregnancy (P < 0.001 for all). Neonatal mortality was low but also significantly higher in the ACHD group (0.83% vs. 0.22%; P = 0.001) and neonates to CHD mothers had low/extremely low birth weight or extreme immaturity (<0.001) or required resuscitation and mechanical ventilation more often compared to non-CHD offspring (P < 0.001 for both). On multivariate logistic regression maternal defect complexity, arterial hypertension, heart failure, prior fertility treatment, and anticoagulation with vitamin K antagonists emerged as significant predictors of adverse neonatal outcome (P < 0.05 for all). Recurrence of CHD was 6.1 times higher in infants to ACHD mothers compared to controls (P < 0.0001).

Conclusions: This population-based study illustrates a reassuringly low maternal mortality rate in a highly developed healthcare system. Nevertheless, maternal morbidity and neonatal morbidity/mortality were significantly increased in women with ACHD and their offspring compared to non-ACHD controls highlighting the need of specialized care and pre-pregnancy counselling.
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http://dx.doi.org/10.1093/eurheartj/ehab571DOI Listing
October 2021

Impact of specialized electrophysiological care on the outcome of catheter ablation for supraventricular tachycardias in adults with congenital heart disease: Independent risk factors and gender aspects.

Heart Rhythm 2021 Jul 13. Epub 2021 Jul 13.

Department of Cardiology III, Adult Congenital and Valvular Heart Disease, University Hospital Münster, Münster, Germany.

Background: Limited data exist on the impact of gender and specialized care on the requirement of repeat treatment of supraventricular tachycardia (SVT) in adult patients with congenital heart disease (ACHDs).

Objective: The study aimed to assess independent predictors of a combined end point of re-catheter ablation (CA) or cardioversion at 3 years of follow-up, including the impact of gender and specialized ACHD care.

Methods: All ACHDs registered in a database of one of the largest German health insurers (≈9.2 million members) who underwent CA for SVT were analyzed.

Results: Of 38,892 ACHDs 16 years or older, 485 (49.5% women; median age 58.4 years; interquartile range 42.1-70.8 years) underwent CA for SVT. Over 3-year follow-up, the number of yearly CA procedures increased significantly, particularly for atrial fibrillation (+195%) and atrial flutter (+108%). Moderate to severe complexity heart disease (odds ratio [OR] 1.66; P = .01), advanced age (OR 1.85 per year; P = .02), chronic kidney disease (OR 1.70; P = .01), and atrial fibrillation (OR 2.02; P = .002) emerged as independent predictors of retreatment. Retreatment was significantly less often performed if primary CA was carried out at a specialized CHD center (P = .009) in patients with moderate to severe complexity heart disease. Women treated in specialist centers had a 1.6-fold reduced risk of undergoing retreatment (P = .01).

Conclusion: CA for SVT is increasingly performed in ACHDs, especially for atrial flutter and atrial fibrillation. Patients with moderate and severe complexity congenital heart defects and female ACHDs benefit from upfront referral to specialized CHD centers for CA. Centralization of care for ACHD arrhythmias should thus be advocated.
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http://dx.doi.org/10.1016/j.hrthm.2021.07.009DOI Listing
July 2021

Lack of specialist care is associated with increased morbidity and mortality in adult congenital heart disease: a population-based study.

Eur Heart J 2021 Jul 16. Epub 2021 Jul 16.

Department of Cardiology III-Adult Congenital and Valvular Heart Disease, University Hospital Muenster, Albert-Schweitzer Campus 1, Building A1, Münster 48149, Germany.

Aims: The aim of this study was to provide population-based data on the healthcare provision for adults with congenital heart disease (ACHD) and the impact of cardiology care on morbidity and mortality in this vulnerable population.

Methods And Results: Based on administrative data from one of the largest German Health Insurance Companies, all insured ACHD patients (<70 years of age) were included. Patients were stratified into those followed exclusively by primary care physicians (PCPs) and those with additional cardiology follow-up between 2014 and 2016. Associations between level of care and outcome were assessed by multivariable/propensity score Cox analyses. Overall, 24 139 patients (median age 43 years, 54.8% female) were included. Of these, only 49.7% had cardiology follow-up during the 3-year period, with 49.2% of patients only being cared for by PCPs and 1.1% having no contact with either. After comprehensive multivariable and propensity score adjustment, ACHD patients under cardiology follow-up had a significantly lower risk of death [hazard ratio (HR) 0.81, 95% confidence interval (CI) 0.67-0.98; P = 0.03) or major events (HR 0.85, 95% CI 0.78-0.92; P < 0.001) compared to those only followed by PCPs. At 3-year follow-up, the absolute risk difference for mortality was 0.9% higher in ACHD patients with moderate/severe complexity lesions cared by PCPs compared to those under cardiology follow-up.

Conclusion: Cardiology care compared with primary care is associated with superior survival and lower rates of major complications in ACHD. It is alarming that even in a high resource setting with well-established specialist ACHD care approximately 50% of contemporary ACHD patients are still not linked to regular cardiac care. Almost all patients had at least one contact with a PCP during the study period, suggesting that opportunities to refer patients to cardiac specialists were missed at PCP level. More efforts are required to alert PCPs and patients to appropriate ACHD care.
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http://dx.doi.org/10.1093/eurheartj/ehab422DOI Listing
July 2021

Comparison of C-C motif chemokine ligand 14 with other biomarkers for adverse kidney events after cardiac surgery.

J Thorac Cardiovasc Surg 2021 Mar 10. Epub 2021 Mar 10.

Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Muenster, Muenster, Germany. Electronic address:

Objective: Outcomes after acute kidney injury are affected by both the severity and the duration of the insult. Patients with persistent acute kidney injury have higher major adverse kidney events, including 90-day mortality, renal replacement therapy, and persistent kidney dysfunction. Methods to identify these patients are urgently needed to improve outcomes. The purpose of this study was to evaluate whether biomarkers, including C-C motif chemokine ligand 14, were able to predict persistent acute kidney injury and major adverse kidney events after cardiac surgery.

Methods: This study was a single-center, prospective, observational study. Patients who developed moderate or severe acute kidney injury (Kidney Disease Improving Global Outcomes 2 or 3) within 72 hours after cardiac surgery were enrolled with a primary end point of persistent severe acute kidney injury (Kidney Disease Improving Global Outcomes 3) lasting 72 hours or more.

Results: A total of 100 patients were available for the primary analysis, and 37 met the primary end point. C-C motif chemokine ligand 14 was the most predictive biomarker for the primary end point with an area under the curve of 0.930 (95% confidence interval, 0.881-0.979). The area under the curve of C-C motif chemokine ligand 14 was significantly higher than the area under the curve for the other biomarkers analyzed. C-C motif chemokine ligand 14 was significantly higher in end point positive patients at enrollment (4.47 ng/mL [2.35-11.5] vs 0.67 ng/mL [0.38-1.07]; P = .001). Sensitivity and specificity were 78% and 95% at a cutoff value of 2.21 ng/mL, respectively. C-C motif chemokine ligand 14 was also highly accurate for predicting renal replacement therapy within 7 days (area under the curve, 0.915; 95% confidence interval, 0.858-0.972; P < .001).

Conclusions: Elevated C-C motif chemokine ligand 14 levels predict persistent acute kidney injury in cardiac surgery patients with moderate or severe acute kidney injury. This new biomarker may help stratify patients destined to receive renal replacement therapy and identify patients who may benefit from novel therapeutic approaches to acute kidney injury.
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http://dx.doi.org/10.1016/j.jtcvs.2021.03.016DOI Listing
March 2021

Mortality and morbidity in patients with congenital heart disease hospitalised for viral pneumonia.

Heart 2020 Oct 27. Epub 2020 Oct 27.

Adult Congenital and Valvular Heart Disease Center, Department of Cardiology and Angiology, University Hospital Muenster, Muenster, Germany.

Objectives: Data on the clinical outcome of patients with congenital heart disease (CHD) affected by severe viral pneumonia are limited. We analysed morbidity and mortality of viral pneumonia and evaluated the association between medical conditions, medication, vaccination and outcome specifically in patients with CHD requiring hospitalisation for viral pneumonia.

Methods: Based on data from one of Germany's largest health insurers, all cases of viral pneumonia requiring hospital admission (2005-2018) were studied. Mortality, and composites of death, transplantation, mechanical circulatory support, ventilation or extracorporeal lung support served as endpoints.

Results: Overall, 26 262 viral pneumonia cases occurred in 24 980 patients. Of these, 1180 cases occurred in patients with CHD. Compared with patients without CHD, mortality rate was elevated in patients with CHD. As a group, patients with CHD aged 20-59 years even exceeded mortality rates in patients without CHD aged >60 years. No mortality was observed in patients with CHD with simple defects <60 years of age without associated cardiovascular risk factors. On multivariable logistic regression analysis, age, CHD complexity, chromosomal anomalies, cardiac medication, use of immunosuppressants and absence of vaccination for influenza emerged as risk factors of adverse outcome.

Conclusions: We present timely data on morbidity and mortality of severe viral pneumonia requiring hospital admission in patients with CHD. Need for mechanical ventilation and risk of death in CHD increase early in life, reaching a level equivalent to non-CHD individuals >60 years of age. Our data suggest that except for patients with isolated simple defects, patients with CHD should be considered higher-risk individuals when faced with severe viral pneumonia.
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http://dx.doi.org/10.1136/heartjnl-2020-317706DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8223651PMC
October 2020
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