Results 131 to 140 of about 1,813,644 (300)

Correlating Pulmonary Hemodynamics With HP 129Xe Dissolved‐Phase MRSI in a Controlled Porcine Intervention Study

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Pulmonary hypertension is related to a 1‐year mortality ranging from < 5% to > 20% in low‐ and high‐risk groups. Right heart catheterization is the diagnostic gold standard, associated with a 1.1% rate of severe adverse events, posing the need for a non‐invasive diagnostic tool.
Markus Phillip Andersen   +7 more
wiley   +1 more source

Feasibility of Valve in Valve After Transcatheter Aortic Valve Replacement With SAPIEN 3 Valves and Surgical Aortic Valve Replacement

open access: yesStructural Heart
The feasibility of transcatheter intervention after transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) is important for the lifetime management of aortic stenosis.A multicenter study was conducted of 4 patient groups: (1) TAVR using SAPIEN 3 at ≤90% implant depth, (2) TAVR using SAPIEN 3 at >90% implant depth, (3)
Tej Sheth   +11 more
openaire   +2 more sources

The Impact of Water Exchange on Estimates of Myocardial Blood Flow and Extracellular Volume Fraction Using Dynamic Contrast‐Enhanced MRI in Patients Treated for Severe Aortic Stenosis

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate the impact of intra/extracellular water exchange (WX) on quantitative dynamic contrast‐enhanced (DCE) MRI in patients with severe aortic stenosis (AS). The aims were to compare low‐dose (WX insensitive) and high‐dose (WX sensitive) DCE‐MRI measurements, and to compare data acquired before and after aortic valve ...
Alex Makins   +5 more
wiley   +1 more source

Clinical and economic outcomes after surgical aortic valve replacement in Medicare patients

open access: yes, 2012
Mary Ann Clark,1 Francis G Duhay,2 Ann K Thompson,2 Michelle J Keyes,3 Lars G Svensson,4 Robert O Bonow,5 Benjamin T Stockwell,3 David J Cohen61The Neocure Group LLC, Washington, DC, 2Edwards Lifesciences Corporation, Irvine, CA, 3The Burgess Group LLC ...
Thompson AK   +7 more
core  

Sleep‐disordered breathing in valvular heart disease: A Modifiable comorbidity

open access: yesSleep Research, EarlyView.
Abstract Sleep‐disordered breathing (SDB) is highly prevalent among patients with valvular heart disease (VHD) and is independently associated with adverse clinical outcomes. The two major phenotypes—obstructive sleep apnea (OSA) and central sleep apnea (CSA)—exhibit distinct distributions across VHD subtypes. CSA predominates in severe aortic stenosis,
Wu Juan   +6 more
wiley   +1 more source

Fetal aortic morphometry by echocardiography: reproducibility study using stringent criteria and standardized nomenclature

open access: yesUltrasound in Obstetrics &Gynecology, EarlyView.
ABSTRACT Objective To establish and assess the reproducibility of standardized echocardiographic nomenclature and the protocol for comprehensive evaluation of fetal aortic morphology. Methods This was a prospective cohort study of fetuses with a normal three‐vessel branching pattern of the aortic arch, evaluated from 18–40 weeks' gestation at a single ...
P. Vazirani   +11 more
wiley   +1 more source

Surgical versus transcatheter aortic valve replacement: the future role of robotic aortic valve replacement.

open access: yesASVIDE
Patients desire a minimally invasive option for management of their valve disease. As transcatheter aortic valve replacement (TAVR) remains a straightforward short-term solution, it is incumbent upon surgeons to provide an alternative, and preferably non-sternotomy or anterior chest option with the longitudinal benefits of surgical aortic valve ...
Jagadeesan, Vikrant   +6 more
openaire   +2 more sources

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

open access: yesVIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe   +8 more
wiley   +1 more source

Surgical Aortic Valve Replacement in the Transcatheter Aortic Valve Replacement Era

open access: yesJACC: Cardiovascular Interventions, 2018
Vinod H. Thourani   +3 more
openaire   +1 more source

Agreement between cardiac cycle time intervals and myocardial velocities measured by automated analysis of color tissue Doppler cine loops and by manual tracing of spectral pulsed‐wave tissue Doppler waveforms of sheep fetal heart under normal and pathological conditions: An experimental study

open access: yesActa Obstetricia et Gynecologica Scandinavica, EarlyView.
Automated cTDI in sheep fetuses provided reproducible measurements of myocardial velocities and heart rate that align well with manual pulsed‐wave TDI. For cardiac cycle duration metrics, the two modalities are not interchangeable. These findings support that automated cTDI is well suited for longitudinal assessment under both physiological and ...
Juulia Lantto   +6 more
wiley   +1 more source

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