TY  - JOUR
ID  - heidok25595
KW  - Pulmonary hypertension
KW  -  Right ventricular output reserve
KW  -  Pump function
KW  -  Right ventricular size
KW  -  Right atrial size
N2  - Background: The objective of this study was to assess, whether right atrial (RA) and ventricular (RV) size is related to RV pump function at rest and during exercise in patients with pulmonary arterial hypertension (PAH).

Methods: We included 54 patients with invasively diagnosed PAH that had been stable on targeted medication. All patients underwent clinical assessments including right heart catheterization and echocardiography at rest and during exercise. RV output reserve was defined as increase of cardiac index (CI) from rest to peak exercise (?CIexercise). Patients were classified according to the median of RA and RV-area. RV pump function and further clinical parameters were compared between groups by student?s t-test. Uni- and multivariate Pearson correlation analyses were performed.

Results: Patients with larger RA and/or RV-areas (above a median of 16 and 20cm2, respectively) showed significantly lower ?CIexercise, higher mean pulmonary arterial pressure, pulmonary vascular resistance at rest and NT-proBNP levels. Furthermore, patients with higher RV-areas presented with a significantly lower RV stroke volume and pulmonary arterial compliance at peak exercise than patients with smaller RV-size. RV area was identified as the only independent predictor of RV output reserve.

Conclusion: RV and RA areas represent valuable and easily accessible indicators of RV pump function at rest and during exercise. Cardiac output reserve should be considered as an important clinical parameter. Prospective studies are needed for further evaluation.
EP  - 13
TI  - Right heart size and function significantly correlate in patients with pulmonary arterial hypertension ? a cross-sectional study
Y1  - 2018///
SP  - 1
JF  - Respiratory Research
VL  - 19
CY  - London
SN  - 1465-993X
A1  - Fischer, Lukas
A1  - Benjamin, Nicola
A1  - Blank, Norbert
A1  - Egenlauf, Benjamin
A1  - Fischer, Christine
A1  - Harutyunova, Satenik
A1  - Koegler, Maria
A1  - Lorenz, Hanns-Martin
A1  - Marra, Alberto M.
A1  - Nagel, Christian
A1  - Xanthouli, Panagiota
A1  - Bossone, Eduardo
A1  - Grünig, Ekkehard
UR  - https://archiv.ub.uni-heidelberg.de/volltextserver/25595/
AV  - public
PB  - BioMed Central
IS  - 216
ER  -