Results 71 to 80 of about 4,977,534 (400)

Analysis of left ventricular behaviour in diastole by means of finite element method [PDF]

, 1979
The human left ventricle in diastole can be modelled as a passive structure with incremental internal pressure change being considered as the load. Recent developments in engineering stress analysis provide techniques for predicting the behaviour of ...
Gibson, DG, Vinson, CA, Yettram, AL
core   +2 more sources

Vorticity‐Facilitated Platelet Aggregation: a High Expansion‐Ratio Stenotic Microfluidic Platform Unravels the Role of Complex Flow Dynamics in Arterial Thrombosis

Advanced Healthcare Materials, EarlyView.
This study reveals how vorticity—a swirling flow pattern—enhances platelet aggregation and thrombus formation in high‐shear conditions. Using a custom microfluidic model, it is shows that vorticity promotes vWF–GPIbα interactions and calcium signaling, providing new insights into thrombosis mechanobiology and informing safer blood‐contacting medical ...
Jianfang Ren, Nurul Aisha Zainal Abidin, Allan Sun, Rui Gao, Yuxin Chen, Arian Nasser, Zihao Wang, Yunduo Charles Zhao, Alexander Dupuy, Anna Waterhouse, Qian Peter Su, Daniele Vigolo, Mike Chia Lun Wu, Lining Arnold Ju   +13 more
wiley   +1 more source

Short-term Heart Rate Turbulence Analysis Versus Variability and Baroreceptor Sensitivity in Patients With Dilated Cardiomyopathy [PDF]

, 2004
New methods for the analysis of arrhythmias and their hemodynamic consequences have been applied in risk stratification, in particular to patients after myocardial infarction.
Bauernschmitt, Robert, Malberg, Hagen, Meyerfeldt, Udo, Schirdewan, Alexander, Wessel, Niels   +4 more
core   +1 more source

Three-dimensional echocardiography and 2D-3D speckle tracking imaging in chronic pulmonary hypertension. diagnostic accuracy in detecting hemodynamic signs of RV failure [PDF]

, 2015
Background and objective. Our aim was to compare three-dimensional (3D) and 2D and 3D speckle tracking (2D-STE, 3D-STE) echocardiographic parameters with conventional right ventricular (RV) indexes in patients with chronic pulmonary hypertension (PH ...
Alessia, Azzano, Capotosto, Lidia, Gaudio, Carlo, Mangieri, Enrico, Nino, Cocco, Rasul, Ashurov, Rosato, Edoardo, Salsano, Felice, Simona, D’Orazio, Terzano, Claudio, Truscelli, Giovanni, Vitarelli, Antonino   +11 more
core   +1 more source

Multifunctional Biomedical Devices with Closed‐Loop Systems for Precision Therapy

Advanced Healthcare Materials, EarlyView.
This review explores two major types of closed‐loop therapeutic systems: self‐sustained and externally triggered. It highlights recent advances in stimuli‐responsive materials, integrated bioelectronics, and data‐driven control strategies, offering insight into emerging strategies for personalized, responsive drug delivery.
Yixuan Leng, Rujie Sun
wiley   +1 more source

A neonatal rat model of progressive left ventricular pressure overload induced by abdominal aortic banding microsurgeryCentral MessagePerspective

JTCVS Techniques
Objective: Left ventricular pressure overload models using adult mice or rats were developed 60 years ago; however, a neonatal mouse model of left ventricular pressure overload was reported only 5 years ago.
Zheng Wang, MD, Sixie Zheng, MD, Lincai Ye, MD, PhD, Debao Li, MD, He Zhang, MD, Yingying Xiao, MD, PhD, Chenxi Liu, MD, Yuqing Hu, MD, Sijuan Sun, MD, Peisen Ruan, MD, Hao Chen, MD, PhD, Qi Sun, MD, PhD   +11 more
doaj   +1 more source

Regional pressure and temperature differences across the injured human brain : comparisons between intraparenchymal and ventricular measurements [PDF]

, 2015
Introduction: Intraparenchymal, multimodality sensors are commonly used in the management of patients with severe traumatic brain injury (TBI). The ‘gold standard’, based on accuracy, reliability and cost for intracranial pressure (ICP) monitoring is ...
A Lavino, AL Sukstanskii, C Childs, C Childs, C Childs, C Childs, Charmaine Childs, CS Rumana, D Kirk, G Gambardella, G Huschak, G Machin, J Ghajar, J-Y Lefrant, K Nakagawa, KN Fountas, L Mcilvoy, Liang Shen, M Smith, M Zhu, RH Sacho, RM Chestnut, SL Bratton, SP Baker, W Graf   +24 more
core   +1 more source

Tapered Pillar Design for High‐Precision Force Readout in Miniaturized Engineered Heart Tissues From Human Pluripotent Stem Cells

Advanced Healthcare Materials, EarlyView.
Engineered heart tissues (EHTs) are a valuable approach in capturing human cardiac physiology and drug responses in vitro. Here, a novel tapered pillar design is developed in an EHT platform to confine tissues in a predefined position‐ at the middle of the pillar height.
Milica Dostanić, Maury Wiendels, Laura M. Windt, Mervyn P.H. Mol, Francijna E. van den Hil, Richard P. Davis, Valeria Orlova, Berend J. van Meer, Massimo Mastrangeli, Christine L. Mummery   +9 more
wiley   +1 more source

Monitored Anesthesia Care of Two Patients with Highly Elevated Subpulmonic Ventricular Pressure due to Adult Congenital Heart Disease

Case Reports in Cardiology, 2020
Procedural sedation and analgesia for patients with adult congenital heart disease (ACHD) and highly elevated subpulmonic ventricular pressure require proper anesthesia care to prevent a pulmonary hypertensive crisis. We describe the monitored anesthesia
Tatsuya Kida, Tomoya Irie, Takahisa Goto
doaj   +1 more source

Clinical Utility of Echocardiography in Former Preterm Infants with Bronchopulmonary Dysplasia. [PDF]

, 2020
BackgroundThe clinical utility of echocardiography for the diagnosis of pulmonary vascular disease (PVD) in former preterm infants with bronchopulmonary dysplasia (BPD) is not established.
Fineman, Jeffrey R, Guslits, Elyssa, Keller, Roberta L, Nawaytou, Hythem, Steurer, Martina A, Teitel, David, Zhao, Yili   +6 more
core   +1 more source