Institution
Heart and Diabetes Center North Rhine-Westphalia
Healthcare•Bad Oeynhausen, Germany•
About: Heart and Diabetes Center North Rhine-Westphalia is a healthcare organization based out in Bad Oeynhausen, Germany. It is known for research contribution in the topics: Heart failure & Vitamin D and neurology. The organization has 288 authors who have published 357 publications receiving 9276 citations.
Topics: Heart failure, Vitamin D and neurology, Medicine, Coronary artery disease, Internal medicine
Papers published on a yearly basis
Papers
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TL;DR: The alterations in amino acid metabolome that the authors found in Fontan patients suggest links between Fontan pathophysiology, altered cell energy metabolism, oxidative stress, and endothelial dysfunction like those found in biventricular patients with congestive heart failure.
Abstract: Growing interest lies in the assessment of the metabolic status of patients with a univentricular circulation after Fontan operation, especially in changes of amino acid metabolism. Using targeted metabolomic examinations, we investigated amino acid metabolism in a homogeneous adult Fontan-patient group with a dominant left ventricle, seeking biomarker patterns that might permit better understanding of Fontan pathophysiology and early detection of subtle ventricular or circulatory dysfunction. We compared serum amino acid levels (42 analytes; AbsoluteIDQ p180 kit, Biocrates Life Sciences, Innsbruck, Austria) in 20 adult Fontan patients with a dominant left ventricle and those in age- and sex-matched biventricular controls. Serum concentrations of asymmetric dimethylarginine, methionine sulfoxide, glutamic acid, and trans-4-hydroxyproline and the methionine sulfoxide/methionine ratio (Met-SO/Met) were significantly higher and serum concentrations of asparagine, histidine, taurine, and threonine were significantly lower in patients than in controls. Met-SO/Met values exhibited a significant negative correlation with oxygen uptake during exercise. The alterations in amino acid metabolome that we found in Fontan patients suggest links between Fontan pathophysiology, altered cell energy metabolism, oxidative stress, and endothelial dysfunction like those found in biventricular patients with congestive heart failure. Studies of extended amino acid metabolism may allow better understanding of Fontan pathophysiology that will permit early detection of subtle ventricular or circulatory dysfunction in Fontan patients.
15 citations
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TL;DR: There is emerging data that vitamin D plays a role in erythropoiesis and low 25‐hydroxyvitamin D (25OHD) levels may therefore be a risk factor for anemia in patients scheduled for cardiac surgery.
Abstract: Summary
Introduction
There is emerging data that vitamin D plays a role in erythropoiesis. Low 25-hydroxyvitamin D (25OHD) levels may therefore be a risk factor for anemia in patients scheduled for cardiac surgery.
Methods
We investigated 4428 consecutive cardiac surgical patients to determine an association between anemia (hemoglobin concentration <12.5 g/dL, 27.1% of the study cohort) and circulating 25OHD.
Results
In patients with severe vitamin D deficiency (25OHD < 12.5 nm), mean hemoglobin concentrations were 0.80 g/dL lower compared with patients with adequate 25OHD levels (50.0–100 nm). Hemoglobin levels were not significantly different at 25OHD levels above 100 nm compared with 50.0–100 nm. In multivariable-adjusted logistic regression analyses, the odds ratios for anemia of the groups with severe and moderate vitamin D deficiency (12.5–29.9 nm) were 1.70 (95% CI:1.09–2.63) and 1.41 (95% CI:1.02–1.96), respectively, compared with patients who had circulating 25OHD levels of 75–100 nm. Prevalence of deficient circulating 25OHD levels was highest in anemia of chronic kidney disease.
Conclusion
This cross-sectional study demonstrates an independent association between vitamin D status and anemia risk with optimal 25OHD levels of 75–100 nm. Randomized controlled trials are needed to clarify whether this association is causal.
15 citations
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TL;DR: Standard CSWT has the potential to improve myocardial perfusion of the therapy zone and clinical CAD symptomatology without affecting global myocardian perfusion, according to a threshold of increased perfusion.
Abstract: Background
Ultrasound guided cardiac shock wave therapy (CSWT) is a noninvasive therapeutic option in the treatment of chronic-refractory angina. Clinical trials have shown that CSWT reduces angina symptoms, improves regional systolic function, LV ejection fraction, myocardial perfusion and quality of life parameters. Absolute measurements of myocardial perfusion before and after CSWT have not been performed so far.
15 citations
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TL;DR: This case illustrates that TDI analysis may be misleading in patients with severe pericardial calcifications of the lateral mitral annulus, and multi-slice computed tomography data in this case contributed much to a better understanding of the impact of heterogeneous calcification patterns on the results of TDI assessment.
Abstract: According to the guidelines of the European Society of Cardiology on the diagnosis and management of pericardial diseases, tissue Doppler imaging (TDI) is proposed to be part of the diagnostic work-up in patients with suspected constrictive pericarditis (CP). We describe a case which illustrates that TDI analysis may be misleading in patients with severe pericardial calcifications of the lateral mitral annulus. Multi-slice computed tomography (MSCT) data in this case contributed much to a better understanding of the impact of heterogeneous calcification patterns on the results of TDI assessment in CP.
15 citations
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TL;DR: The development of assist device for children which has long durability and small in size as a future subject is desired.
Abstract: INTRODUCTION Recently various mechanical circulatory support systems are being used all over the world, nevertheless the size of the devices limits the implantation in pediatric cases. Accordingly we report our experiences with assist devices applied for pediatric patients. PATIENTS AND METHODS Twenty-nine children underwent mechanical circulatory support implantation operation. The diagnoses of preoperation were dilated cardiomyopathy in 16, congenital heart disease in 12 and allograft dysfunction in 1. RESULTS From November 1987 to January 2004 we implanted 7 LVAD, 11 BVAD and 11 ECMO in pediatric patients. The 29 patients were supported from 11 to 231 days (mean 32.3 days). Three children were supported by Thoratec LVAD. Biventricular Thoratec VAD was used in 3 children. Three children were supported by Medos-HIA system LVAD, and 8 children by biventricular VAD using the Medos-HIA system. One child was supported by Novacor LVAD. Fourteen children were supported by ECMO. We succeeded in heart transplantation in 10 cases, but lost 16 children during the support. Bleeding occurred in 7 cases, thrombosis occurred in 6 cases, infection occurred in 8 cases, pneumothorax occurred in 3 cases and neurological deficit occurred in 2 cases. CONCLUSION The development of assist device for children which has long durability and small in size as a future subject is desired. Further clinical and experimental research and application of those assist devices for children are in progress.
14 citations
Authors
Showing all 303 results
Name | H-index | Papers | Citations |
---|---|---|---|
Jan Gummert | 55 | 290 | 10570 |
Armin Zittermann | 54 | 252 | 12697 |
Dieter Horstkotte | 45 | 457 | 10554 |
Andreas Koster | 41 | 190 | 5602 |
Reiner Körfer | 39 | 240 | 5546 |
Jan D. Schmitto | 38 | 296 | 5560 |
Reiner Koerfer | 38 | 190 | 5844 |
Philipp Beerbaum | 38 | 147 | 4769 |
Jochen Börgermann | 35 | 147 | 3814 |
Jens Dreier | 35 | 114 | 3472 |
Tanja K. Rudolph | 35 | 118 | 3780 |
Joachim Kuhn | 35 | 142 | 4226 |
Christian Götting | 35 | 109 | 4349 |
Aly El-Banayosy | 34 | 142 | 4652 |
Olaf Oldenburg | 34 | 184 | 4736 |