Publications by authors named "Stefan Dirks"

Article Synopsis
  • - The study aimed to assess the impact of a long-term individualized home-based endurance training (IHET) program and inspiratory muscle training (IMT) on pediatric and adult patients with Fontan hemodynamics from 2018 to 2021, involving 25 patients initially, with some exclusions due to non-compliance.
  • - Patients underwent structured training which included increasing bike sessions and daily breathing exercises, with their exercise capacity and respiratory function measured through various testing methods at the start and follow-up appointments.
  • - Results showed a slight increase in median exercise capacity, a significant rise in oxygen pulse, and notable improvements in respiratory function, indicating the training's effectiveness without any adverse events reported.
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Background: Patients with congenital heart disease (CHD)-including those after Fontan operation-are encouraged to be physically active.

Aim: To prospectively determine the effects of an individually adapted, home-based cycle ergometer endurance training in combination with inspiratory muscle training (IMT) in pediatric and adult Fontan patients. We, herein, report the results of the initial 10-months follow-up (phase 1).

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Aim: Regular evaluation of physical capacity takes a crucial part in long-term follow-up in patients with congenital heart disease (CHD). This study aims to examine the accuracy of self-estimated exercise capacity compared to objective assessments by cardiopulmonary exercise testing in patients with CHD of various complexity.

Methods: We conducted a single centre, cross-sectional study with retrospective analysis on 382 patients aged 8-68 years with various CHD who completed cardiopulmonary exercise tests.

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Dendritic cells (DC) in the thymus have an important role in the establishment of central tolerance by promoting negative selection of autoreactive T cells and regulatory T-cell differentiation. Whereas human DC have recently been studied in various tissues in more detail, thymic DC subsets are still ill-defined. In the present work, we studied the binding of 71 monoclonal antibodies (mAb) submitted to the HLDA10 workshop to human CD123(+) plasmacytoid DC and the two subsets of conventional DC (cDC, CD141(+) and CD11b(+)) isolated from thymus tissue of infants undergoing corrective heart surgery.

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