Article
Medicine, General & Internal
Chahyun Oh, Soomin Lee, Pyeonghwa Oh, Woosuk Chung, Youngkwon Ko, Seok-Hwa Yoon, Yoon-Hee Kim, Sung-Mi Ji, Boohwi Hong
Summary: This study retrospectively assessed the performance of arterial pressure waveform-based cardiac output estimation (CO-FloTrac) during off-pump coronary artery bypass graft (OPCAB) surgery. The results showed that despite time adjustments, CO-FloTrac exhibited considerable overestimation, unacceptable precision, and poor trending ability in this surgical setting.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Chemistry, Analytical
Xichen Xu, Qunfeng Tang, Zhencheng Chen
Summary: We proposed a new method using deep learning to estimate cardiac output, which outperformed traditional methods and met clinical acceptability standards.
Article
Anesthesiology
Yusuke Takei, Michio Kumagai, Manami Suzuki, Sakura Mori, Yuna Sato, Toru Tamii, Akane Tamii, Ako Saito, Yuko Ogata, Yu Kaiho, Hiroaki Toyama, Yutaka Ejima, Masanori Yamauchi
Summary: This study aimed to compare the accuracy and characteristics of two less-invasive devices in measuring the systemic vascular resistance index (SVRI) compared to the intermittent thermodilution technique. The results showed that the fourth generation FloTrac and LiDCOrapid had moderate correlations with the intermittent thermodilution technique, but there were significant variations in accuracy at different SVRI levels.
JOURNAL OF CARDIOTHORACIC AND VASCULAR ANESTHESIA
(2023)
Article
Physiology
Sole Lindvag Lie, Jonny Hisdal, Lars Oivind Hoiseth
Summary: The study indicates that during reductions in cardiac output, both MAP and cardiac output have independent effects on CBF. Furthermore, there is a statistically significant interaction effect between MAP and cardiac output on ICAV and ScO2.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2021)
Article
Endocrinology & Metabolism
Gemma Llaurado, Nuria Amigo, Rocio Fuertes-Martin, Ana Romero, Albert Cano, Lara Albert, Olga Gimenez-Palop, Eugenio Berlanga, Sonia Fernandez-Veledo, Xavier Correig, Joan Vendrell, Jose-Miguel Gonzalez-Clemente
Summary: This study evaluated the utility of measuring serum GlycA and GlycB to assess vascular aging in adults with type 1 diabetes (T1D) of more than 10 years duration and no previous cardiovascular events. The results showed that GlycA and GlycB were positively correlated with the surrogate measure of arterial stiffness (aPWV) and independently associated with aPWV. Therefore, measuring serum GlycA and GlycB may be helpful in assessing vascular aging in adults with T1D.
Article
Medical Informatics
Hyun-Lim Yang, Chul-Woo Jung, Seong Mi Yang, Min-Soo Kim, Sungho Shim, Kook Hyun Lee, Hyung-Chul Lee
Summary: An open-source algorithm developed in this study using convolutional neural network and transfer learning technique showed better performance in estimating cardiac output compared to commercial APCO devices. The deep learning model had significantly smaller absolute errors and may be helpful in optimizing patient care for high-risk individuals.
JMIR MEDICAL INFORMATICS
(2021)
Review
Anesthesiology
Karim Kouz, Thomas W. L. Scheeren, Daniel de Backer, Bernd Saugel
Summary: Pulse wave analysis can estimate cardiac output continuously and in real time. The methods of pulse wave analysis can be categorized based on invasiveness, calibration, and calibration methods.
Article
Engineering, Multidisciplinary
Lirui Xu, Pang Wu, Pan Xia, Fanglin Geng, Saihu Lu, Peng Wang, Xianxiang Chen, Zhenfeng Li, Lidong Du, Shuping Liu, Li Li, Hongbo Chang, Zhen Fang
Summary: This study presents an ultrasound system that can noninvasively measure local pulse pressure and blood pressure waveforms continuously. The system uses a low-computational method to evaluate pulse wave velocity and diameter waveforms, allowing the measurement of PP and blood pressure without calibration. The system has been validated in vitro and in vivo, demonstrating high accuracy and showing promise for diagnosing and preventing cardiovascular diseases.
Article
Medicine, General & Internal
Bhanuprakash Bhaskar, Mohan Gurjar, Prabhaker Mishra, Afzal Azim, Banani Poddar, Arvind K. Baronia
Summary: This study aimed to determine the mean arterial pressure (MAP) gradient between the femoral and radial artery sites in septic shock patients. The results showed that MAP readings were higher at the femoral site than at the radial site, particularly in those receiving a high dose of norepinephrine.
FRONTIERS IN MEDICINE
(2022)
Review
Critical Care Medicine
Anders Aneman, Petter Wilander, Frank Zoerner, Miklos Lipcsey, Michelle S. Chew
Summary: The systematic review investigated the effects of vasopressors on hemodynamic changes in adults with shock. It was found that vasopressors led to significant increases in mean arterial pressure and systemic vascular resistance, impacting cardiac output and heart pump efficiency in a heterogeneous manner. The comprehensive analysis illustrated the inadequacy of using mean arterial pressure as the sole clinical endpoint for vasopressor therapy optimization.
Article
Peripheral Vascular Disease
Sultana Monira Hussain, Michael E. Ernst, Anna L. Barker, Karen L. Margolis, Christopher M. Reid, Johannes T. Neumann, Andrew M. Tonkin, Thao Le Thi Phuong, Lawrence J. Beilin, Thao Pham, Enayet K. Chowdhury, Flavia M. Cicuttini, Julia F. M. Gilmartin-Thomas, Prudence R. Carr, John J. McNeil
Summary: Long-term variability in mean arterial pressure is associated with an increased risk of falls in frail or prefrail individuals taking antihypertensive medications. Beta-blocker monotherapy is associated with a higher risk of falls compared to calcium channel blockers.
Article
Cardiac & Cardiovascular Systems
Pierre Boutouyrie, Phil Chowienczyk, Jay D. Humphrey, Gary F. Mitchell
Summary: Arterial stiffness is a key marker of risk in hypertension, and can be measured at material or structural levels. Studies have shown that structural stiffness predicts outcomes, with elastic arteries being most sensitive to blood pressure and age. Stiffness is considered an index of vascular aging and affects brain, kidneys, and heart function. Reduction of stiffness through antihypertensive treatments and preventive drugs may have additional benefits beyond lowering blood pressure. Newer anti-inflammatory drugs also have effects on stiffness independent of blood pressure.
CIRCULATION RESEARCH
(2021)
Article
Medicine, General & Internal
Manoj Kumar Choudhary, Emmi Varri, Niina Matikainen, Jenni Koskela, Antti J. Tikkakoski, Mika Kahonen, Onni Niemel, Jukka Mustonen, Pasi Nevalainen, Ilkka Porsti
Summary: Medicated PA patients exhibit higher systemic vascular resistance and wave reflection compared to medicated EH patients, but show higher extracellular water volume, cardiac output, and arterial stiffness. Further studies are needed to determine if evaluating these features systematically would benefit the clinical diagnostics of PA.
JOURNAL OF INTERNAL MEDICINE
(2021)
Article
Optics
Mark Golberg, Ran Califa, Sagi Polani, Orit Goldstein, Zailer Aviram, Meir Niska, Zeev Zalevsky
Summary: This article presents an optical sensor for contactless measurement of diabetic foot based on laser speckle techniques. The sensor analyzes the speckle patterns to differentiate the perfusion of the foot. A simple and inexpensive PAD monitoring system design is proposed.
Review
Polymer Science
Marjan Roshandel, Farid Dorkoosh
Summary: Cardiovascular diseases are the leading cause of mortality globally, with regenerating or repairing heart tissues being a promising treatment approach. Various methods for scaffold fabrication can be utilized in tissue engineering, using biomaterials and techniques explained in this review paper. Recent studies have shown the use of scaffolds for cardiac tissues, guiding researchers towards more precise studies in the field.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
