Moritz Seiffert

Prof. Dr. Moritz Seiffert

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2014 in JACC: Cardiovascular Interventions
Verified
Journal Article
Closed access
MSMoritz Seiffert
Moritz Seiffert
RBRalf Bader
Ralf Bader
UKUtz Kappert
Utz Kappert
ARArdawan Rastan
Ardawan Rastan
SKStephan Krapf
Stephan Krapf
HTHendrik Treede
Hendrik Treede

1 March 2012 in JACC: Cardiovascular Interventions
Verified
Journal Article
Closed access
MSMoritz Seiffert
Moritz Seiffert
LCLenard Conradi
Lenard Conradi
SBStephan Baldus
Stephan Baldus
JSJohannes Schirmer
Johannes Schirmer
MKMalgorzata Knap
Malgorzata Knap
HTHendrik Treede
Hendrik Treede

9 July 2015 in European Heart Journal - Cardiovascular Imaging
Verified
Journal Article
Open access
PDF file
MSMoritz Seiffert
Moritz Seiffert
BFBuntaro Fujita
Buntaro Fujita
MAMaxim Avanesov
Maxim Avanesov
CLClemens Lunau
Clemens Lunau
GSGerhard Schön
Gerhard Schön
HTHendrik Treede
Hendrik Treede
Calcification of the device landing zone is linked to paravalvular regurgitation after transcatheter aortic valve implantation (TAVI). The mechanisms remain incompletely understood and the performance of next-generation transcatheter heart valves (THV) has not been investigated. We evaluated the impact of calcification patterns on residual aortic regurgitation (AR) after TAVI with different THV in patients with severe aortic stenosis. TAVI was performed in 537 patients at two centres. Devices implanted were the Edwards Sapien XT (n = 254), Medtronic CoreValve (n = 123), JenaValve (n = 62), Medtronic Engager (n = 56), and Symetis Acurate (n = 42) prostheses. Calcification of the device landing zone was retrospectively assessed from contrast-enhanced multidetector computed tomography data and correlated with echocardiographic and clinical data. Calcium volumes of the aortic valve and left-ventricular outflow tract were associated with residual AR: No AR, 604 mm3 (inter-quartile range, IQR 349–916); trace AR, 639 mm3 (IQR 368–948); mild AR, 710 mm3 (IQR 412–2078); ≥moderate AR, 1041 mm3 (IQR 791–1417, P = 0.001). Device landing zone calcium, particularly if located in the left-ventricular outflow tract, and a low cover index were predictive of AR. Differences in the incidence of AR were observed with regard to THV type. Higher calcium volume was associated with the need for post-dilation (n = 134, median 852 [IQR 342–945] vs. 604 [IQR 542–1207] mm3, P < 0.001). Calcification of the device landing zone, particularly if located inferior to the annulus, was independently associated with residual AR after TAVI with all evaluated THV; however, the incidence of paravalvular leakage differed significantly between the devices implanted.

30 April 2010 in Catheterization and Cardiovascular Interventions
Verified
Journal Article
Closed access
PDF file
MSMoritz Seiffert
Moritz Seiffert
OFOlaf Franzen
Olaf Franzen
LCLenard Conradi
Lenard Conradi
SBStephan Baldus
Stephan Baldus
JSJohannes Schirmer
Johannes Schirmer
HTHendrik Treede
Hendrik Treede

1 June 2013 in JACC: Cardiovascular Interventions
Verified
Journal Article
Closed access
MSMoritz Seiffert
Moritz Seiffert
PDPatrick Diemert
Patrick Diemert
DKDietmar Koschyk
Dietmar Koschyk
JSJohannes Schirmer
Johannes Schirmer
LCLenard Conradi
Lenard Conradi
HTHendrik Treede
Hendrik Treede

1 March 2012 in The Journal of Thoracic and Cardiovascular Surgery
Verified
Journal Article
Closed access
MSMoritz Seiffert
Moritz Seiffert
LCLenard Conradi
Lenard Conradi
SBStephan Baldus
Stephan Baldus
MKMalgorzata Knap
Malgorzata Knap
JSJohannes Schirmer
Johannes Schirmer
HTHendrik Treede
Hendrik Treede