Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Prem A. Midha"'
Publikováno v:
Cardiovascular Engineering and Technology. 12:598-605
The goal of this study was to demonstrate the range in effective orifice area (EOA) values that may be possible given the ISO 5840 definition of EOA and the practical limits in the accurate measurement of pressure differential across large diameter v
Publikováno v:
J R Soc Interface
Transcatheter aortic valve (TAV) thrombosis has been recognized as a significant problem that sometimes occurs as early as within 30 days after valve implantation, leading to increased concerns of stroke and long-term valve durability. In this articl
Autor:
Prem A. Midha, Ajit P. Yoganathan, Immanuel David Madukauwa-David, Vahid Sadri, Charles H. Bloodworth, Vrishank Raghav
Publikováno v:
General Thoracic and Cardiovascular Surgery. 68:9-17
Rapid deployment surgical aortic valve replacement has emerged as an alternative to the contemporary sutured valve technique. A difference in transvalvular pressure has been observed clinically between RD-SAVR and contemporary SAVR. A mechanistic inq
Autor:
Kylee McLain, Ajit P. Yoganathan, Raj Makkar, Rahul Sharma, Kaylyn Crawford, Prem A. Midha, Sung-Han Yoon, Ronodeep Mitra, Immanuel David Madukauwa-David
Publikováno v:
Catheterization and Cardiovascular Interventions. 93:134-140
The study aimed to characterize the geometry of the aortic root pre- and post-transcatheter aortic valve replacement (TAVR) and investigate differences in pre- and post-TAVR anatomy.A greater understanding of how aortic root geometry changes after TA
Autor:
Ajit P. Yoganathan, Vrishank Raghav, Ikechukwu Okafor, Gautam Kumar, Prem A. Midha, Jose F. Condado
Publikováno v:
Annals of Biomedical Engineering. 45:1305-1314
An incompetent aortic valve (AV) results in aortic regurgitation (AR), where retrograde flow of blood into the left ventricle (LV) is observed. In this work, we parametrically characterized the detailed changes in intra-ventricular flow during diasto
Autor:
Ajit P. Yoganathan, Vrishank Raghav, Arash Kheradvar, S. Hamed Alavi, Lakshmi Prasad Dasi, Caitlin Martin, Wei Sun, Qian Wang, Prem A. Midha, Ramin Zareian, Hoda Hatoum, Thuy Pham
Publikováno v:
Annals of biomedical engineering, vol 45, iss 2
Transcatheter aortic valves (TAVs) represent the latest advances in prosthetic heart valve technology. TAVs are truly transformational as they bring the benefit of heart valve replacement to patients that would otherwise not be operated on. Neverthel
Autor:
Prem A. Midha, Ajit P. Yoganathan, Raj Makkar, Vahid Sadri, Immanuel David Madukauwa-David, Rahul Sharma, Vasilis C. Babaliaros
Publikováno v:
Circulation. Cardiovascular interventions. 12(7)
Autor:
Prem A. Midha, Ajit P. Yoganathan, Vrishank Raghav, Ikechukwu Okafor, Christopher J. Clifford, Brian S. Thurow
Publikováno v:
J R Soc Interface
The recent unexpected discovery of thrombosis in transcatheter heart valves (THVs) has led to increased concerns of long-term valve durability. Based on the clinical evidence combined with Virchow's triad, the primary hypothesis is that low-velocity
Autor:
Immanuel David Madukauwa-David, Prem A. Midha, Vahid Sadri, Cyrus K. Aidun, Vasilis C. Babaliaros, Ajit P. Yoganathan
Publikováno v:
Annals of biomedical engineering. 48(1)
Transcatheter heart valve (THV) leaflet thrombosis in the neo-sinus and associated reduced leaflet motion is of clinical concern due to risks of embolism and worsened valve hemodynamics. Flow stasis in the neo-sinus (the space between the native and
Autor:
Rahul Sharma, Vrishank Raghav, Vahid Sadri, Ajit P. Yoganathan, Immanuel David Madukauwa-David, John N. Oshinski, Prem A. Midha, Norihiko Kamioka, Vasilis Babaliaros
Publikováno v:
Catheterization and cardiovascular interventions : official journal of the Society for Cardiac AngiographyInterventionsREFERENCES. 95(5)
OBJECTIVES We investigated the impact of (transcatheter heart valve) THV expansion at the level of the native annulus and implant depth on valve performance and neo-sinus flow stasis. BACKGROUND Flow stasis in the neo-sinus is one of the identified r