Results 71 to 80 of about 7,318 (202)

SCS: Superior‐Vena‐Cava Compressing Shape‐Memory‐Alloy‐Based Implantable Device for Heart Failure

Advanced Engineering Materials, Volume 27, Issue 7, April 2025.
An implantable superior–vena‐cava compression device, utilizing biocompatible shape‐memory‐alloy actuators, regulates blood flow and thereby achieves an 18.6% reduction in end‐diastolic left ventricular volume in a porcine model of ADHF. This potential long‐term solution minimizes thrombosis risk by avoiding direct blood contact, offering a significant
Yongjin Kim, Jeonghyeon Lee, Jeongwon Kim, Domin Cho, Hyunwoo Lee, Se Jin Oh, Amy Kyungwon Han   +6 more
wiley   +1 more source

SPARCL1 and NT‐proBNP as biomarkers of right ventricular‐to‐pulmonary artery uncoupling in pulmonary hypertension

ESC Heart Failure, Volume 12, Issue 2, Page 1416-1426, April 2025.
Abstract Aims SPARCL1 was recently identified as a biomarker of right ventricular (RV) maladaptation in patients with pulmonary hypertension (PH), and N‐terminal pro‐brain natriuretic protein (NT‐proBNP) is an established biomarker of RV failure in PH. The present study investigated whether NT‐proBNP and SPARCL1 concentrations are associated with load ...
Oliver Dörr, Stanislav Keranov, Paulina van Wickern, Holger Nef, Christian Hamm, Pascal Bauer, Christian Troidl, Samuel Sossalla, Sandra Voss, Christoph Liebetrau, Manuel J. Richter, Henning Gall, Werner Seeger, Ardeschir Ghofrani, Athiththan Yogeswaran, Khodr Tello   +15 more
wiley   +1 more source

Tricuspid-regurgitation-mediated flow-driven right-to-left cardiac shunting caused systemic hypoxemia in a patient with patent foramen ovale without elevated right atrial pressure

Heliyon, 2023
The prevalence of patent foramen ovale (PFO) is 20–25% among adults. The role of right-to-left shunting through the PFO in systemic hypoxemia remains poorly understood.
Peng Teng, Haige Zhao, Shuai Yuan, Guoliang Lou, Shengjun Wu   +4 more
doaj  

On the possibility to increase sensitivity of diagnostic tests for fixed pulmonary hypertension in heart transplant candidates

Alʹmanah Kliničeskoj Mediciny, 2019
Background: Fixed pulmonary hypertension (PH) in heart transplant candidates is a risk factor for right ventricular failure in the postoperative period and early mortality. Patients with fixed PH are not included in the waiting list.
M. A. Bortsova, A. E. Bautin, A. S. Yakovlev, P. A. Fedotov, Yu. V. Sazonova, A. O. Marichev, D. M. Tashkhanov, I. V. Sukhova, R. V. Vizer, O. M. Moiseeva, M. Yu. Sitnikova, M. L. Gordeev   +11 more
doaj   +1 more source

A Comparison of the Acute Phase Cardiac Function Between Septal and Apical Right Ventricular Pacing in Individual Patients

Journal of Arrhythmia, 2009
In recent years right ventricular septal pacing (RVSP) has been performed instead of right ventricular apical pacing (RVAP) because of the detrimental effects on the ventricular function associated with the latter type of pacing.
Yasutaka Hirayama, MD, Yuichiro Kawamura, MD, Tatsuya Saito, MD, Kohko Yamazaki, MD, Johji Suzuki, MD, Yusuke Kashiwagi, MD, Mitsuru Gima, MD, Hideichi Tanaka, MD, Kotaro Shiraga, MD, Daisuke Hotta, MD, Masaru Tsukamoto, MD, Hideo Yokoyama, MD, Nobuyuki Sato, MD, Naoyuki Hasebe, MD, Kenjiro Kikuchi, MD, Katsumi Ohori, MD   +15 more
doaj   +1 more source

Force Plate Monitoring of Human Hemodynamics [PDF]

arXiv, 2005
We show that the recoils of the body caused by cardiac motion and blood circulation provide a noninvasive method capable to display the motions of the heart muscle and the propagation of the pulse wave along aorta and its branches. The results are compared with the data obtained invasively during a heart catheterization.
arxiv  

Personalized ventilation guided by electrical impedance tomography with increased PEEP improves ventilation‐perfusion matching in asymmetrical airway closure and contralateral pulmonary embolism during veno‐venous extracorporeal membrane oxygenation: A case report

Physiological Reports, Volume 13, Issue 7, April 2025.
Abstract We report the case of a 54‐year‐old man with right‐lung pneumonia and contralateral pulmonary embolism (PE) conditioning severe refractory hypoxemia requiring veno‐venous extracorporeal membrane oxygenation. Electrical impedance tomography (EIT) was used to assess recruitability and regional ventilation and perfusion.
Roberta Garberi, Claudio Ripa, Gianmarco Carenini, Luca Bastia, Marco Giani, Giuseppe Foti, Emanuele Rezoagli   +6 more
wiley   +1 more source

Mean value type inequalities for quasinearly subharmonic functions [PDF]

arXiv, 2012
The mean value inequality is characteristic for upper semicontinuous functions to be subharmonic. Quasinearly subharmonic functions generalize subharmonic functions. We find the necessary and sufficient conditions under which subsets of balls are big enough for the catheterization of nonnegative, quasinearly subharmonic functions by mean value ...
arxiv  

The golden ratio in the pulmonary circulation in patients with heart failure and cardiogenic shock

Physiological Reports, Volume 13, Issue 7, April 2025.
Stroke volume is a determinant of both mPAP (left wireframe plot) and PP (right surface plot). Mean pulmonary artery pressure changes with SV with a coefficient of (PVR/t, where t = cardiac interval). The mPAP plot is based on a PVR of 4.2WU (or 0.252 mmHg/mL.s) at cardiac intervals from 400 to 1000 ms and PAWP of 29 mmHg.
Hoong Sern Lim, Ivan H. W. Yim
wiley   +1 more source

Chronic Thromboembolic Pulmonary Hypertension Due to Popliteal Vein Aneurysm

International Medical Case Reports Journal, 2021
Masakazu Tsubono,1,2 Kazuhiro Shimizu,2 Shuji Sato,2 Takuro Ito,2 Takanori Ikeda1 1Department of Internal Medicine, Toho University Omori Medical Center, Tokyo, Japan; 2Department of Internal Medicine, Toho University Sakura Medical Center, Chiba ...
Tsubono M, Shimizu K, Sato S, Ito T, Ikeda T   +4 more
doaj