TY  - THES
A1  - Schönfeld, Stephan
T1  - Aldosteron und Cortisol bei Dialysepatienten – Effekt auf kardiale und vaskuläre Ereignisse
T1  - Aldosterone and cortisol in haemodialysis patients – effect on cardiac and vascular events
N2  - Dialysepatienten weisen eine hohe Anzahl kardiovaskulärer Ereignisse auf. Betrachtet man die häufigsten Todesursachen von Dialysepatienten, so fällt ein großer Teil in den kardiovaskulären Bereich. In dieser Arbeit wurde der Einfluss von Aldosteron und Cortisol auf kardiale und vaskuläre Ereignisse bei Dialysepatienten mit Diabetes mellitus untersucht. Dazu wurden Daten von 1255 Dialysepatienten mit Diabetes mellitus aus der Deutschen Diabetes Dialyse Studie analysiert.
In der vorliegenden Arbeit konnte gezeigt werden, dass mit erhöhten Aldosteronkonzentrationen ein signifikanter Anstieg des Risikos für plötzlichen Herztod (HR: 1.69; 95% CI: 1.06–2.69) einhergeht. Das Risiko an plötzlichem Herztod zu versterben war bei hohen Konzentrationen von Aldosteron und gleichzeitig vorliegenden hohen Konzentrationen von Cortisol noch deutlicher erhöht (HR: 2.86, 95% CI: 1.32–6.21). Ebenso war die Gesamtsterblichkeit signifikant erhöht bei Patienten, die hohe Aldosteron- und Cortisolkonzentrationen aufwiesen im Vergleich zu Patienten mit niedrigen Spiegeln beider Hormone (HR: 1.62, 95% CI: 1.01–2.62).
In dieser Arbeit konnte somit ein deutlicher Zusammenhang hoher Aldosteron- und Cortisolkonzentrationen mit plötzlichem Herztod und Gesamtsterblichkeit gezeigt werden.
N2  - Dialysis patients demonstrate a high number of cardio-vascular events. Investigating the most common causes of death of dialysis patients reveals a large share of causes lying in the cardio-vascular area. This paper examines the influence of aldosterone and cortisol on cardiac and vascular events of dialysis patients with diabetes mellitus. In doing so, data from 1255 dialysis patients with diabetes mellitus from the German Diabetes Dialysis Study was analyzed.
The findings of this study show that a heightened concentration of aldosterone significantly increases the risk of sudden cardiac death (HR: 1.69; 95% CI: 1.06–2.69). The combined presence of high aldosterone and cortisol levels raises this risk even more (HR: 2.86, 95% CI: 1.32–6.21). Furthermore, the mortality rate is substantially increased for patients that demonstrate high concentrations of Aldosterone and Cortisol as compared to patients with low levels of both hormones (HR: 1.62, 95% CI: 1.01–2.62).
In conclusion, the thesis demonstrates a significant association between high concentrations of aldosterone, cortisol and sudden cardiac death as well as overall mortality.
KW  - Aldosteron
KW  - Dialyse
KW  - Aldosteron
KW  - Cortisol
KW  - Plötzlicher Herztod
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-96156
ER  - 
TY  - JOUR
A1  - Drechsler, Christiane
A1  - Ritz, Eberhard
A1  - Tomaschitz, Andreas
A1  - Pilz, Stefan
A1  - Schönfeld, Stephan
A1  - Blouin, Katja
A1  - Bidlingmaier, Martin
A1  - Hammer, Fabian
A1  - Krane, Vera
A1  - März, Winfried
A1  - Allolio, Bruno
A1  - Fassnacht, Martin
A1  - Wanner, Christoph
T1  - Aldosterone and cortisol affect the risk of sudden cardiac death in haemodialysis patients
JF  - European Heart Journal
N2  - Background: Sudden cardiac death is common and accounts largely for the excess mortality of patients on maintenance dialysis. It is unknown whether aldosterone and cortisol increase the incidence of sudden cardiac death in dialysis patients.

Methods and results: We analysed data from 1255 diabetic haemodialysis patients participating in the German Diabetes and Dialysis Study (4D Study). Categories of aldosterone and cortisol were determined at baseline and patients were followed for a median of 4 years. By Cox regression analyses, hazard ratios (HRs) were determined for the effect of aldosterone, cortisol, and their combination on sudden death and other adjudicated cardiovascular outcomes. The mean age of the patients was 66 ± 8 years (54% male). Median aldosterone was <15 pg/mL (detection limit) and cortisol 16.8 µg/dL. Patients with aldosterone levels >200 pg/mL had a significantly higher risk of sudden death (HR: 1.69; 95% CI: 1.06–2.69) compared with those with an aldosterone <15 pg/mL. The combined presence of high aldosterone (>200 pg/mL) and high cortisol (>21.1 µg/dL) levels increased the risk of sudden death in striking contrast to patients with low aldosterone (<15 pg/mL) and low cortisol (<13.2 µg/dL) levels (HR: 2.86, 95% CI: 1.32–6.21). Furthermore, all-cause mortality was significantly increased in the patients with high levels of both hormones (HR: 1.62, 95% CI: 1.01–2.62).

Conclusions: The joint presence of high aldosterone and high cortisol levels is strongly associated with sudden cardiac death as well as all-cause mortality in haemodialysed type 2 diabetic patients. Whether a blockade of the mineralocorticoid receptor decreases the risk of sudden death in these patients must be examined in future trials.
KW  - mortality
KW  - kidney disease
KW  - cardiovascular events
KW  - sudden cardiac death
KW  - cortisol
KW  - aldosterone
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-132562
VL  - 34
ER  -