Fontan-Sprechstunde

Univentricular Heart

After successful Fontan surgery, the risk of mortality in childhood is only low. Unfortunately, some of the patients suffer from Fontan-typical long-term complications in the long-term course, whereby protein loss neuropathy must be mentioned in particular, which is described in the literature with an incidence of 3-14% (1, 2) and still has a 5-year risk of death of 6-12% today (2, 3). Protein loss tereopathy leads to loss of protein in the intestine and subsequently to diarrhea and edema. Other problems concern the liver, which can develop cirrhosis due to chronic congestion (4-6). Cardiac can lead to heart failure and arrhythmias. The registry study described in this protocol is intended to identify factors that influence the treatment outcome of patients in the Fontan circulation in the long term through systematic prospective documentation of the data from our standardized and guideline-oriented treatment.

In particular, the following points will be scientifically analyzed: 1. The development of lymphatic drainage disorders (7-9) 2. The cellular changes of the immunological system and metabolome (10) In addition to the clinical routine, weight-adapted EDTA blood for the isolation of peripheral blood mononuclear cells (PBMCs) for the scientific investigation of immunological changes and serum for the analysis of the metabolome will be examined at three times (Figure 1: Times 2, 4, 7) as part of a routine blood sample (10). 3. The recording and treatment of psychological, social and developmental abnormalities with the help of standardized questionnaires. 4. The evaluation of special sonography examinations of the liver and kidney in the long-term course, as well as their treatment. 5. The assessment of the hemodynamic peculiarities and the classification with regard to Cardiac function in the long-term course of patients with Fontan circulation. 6. The assessment of various laboratory parameters as risk parameters for the development of complications. 7. The recording of cardiopulmonary performance in the long-term course and its ability to be influenced by education regarding sporting activity and the handing over of an individualized training plan. 8. The influence of physical activity on possible complications of Fontan circulation. 9. The influence of early psychological, nutritional, or social intervention in the event of abnormalities on later complications of Fontan circulation.

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