keyword
https://read.qxmd.com/read/38541507/strength-characteristics-ultrasonic-wave-velocity-and-the-correlation-between-them-in-clay-bricks-under-dry-and-saturated-conditions
#1
JOURNAL ARTICLE
Amin Jamshidi, Luís Sousa
One of the methods used to discover the development of deterioration in bricks used as a construction material in a building is the monitoring of the bricks' strength characteristics over time. However, measuring the strength characteristics of bricks used in a building requires sampling for performing laboratory tests, which is not possible in some cases. As an alternative, ultrasonic wave velocity can be a useful, nondestructive tool for the indirect assessment of the strength characteristics of the bricks...
March 15, 2024: Materials
https://read.qxmd.com/read/38540011/antinociceptive-and-cardiorespiratory-effects-of-a-single-dose-of-dexmedetomidine-in-laboratory-mice-subjected-to-craniotomy-under-general-anaesthesia-with-isoflurane-and-carprofen-or-meloxicam
#2
JOURNAL ARTICLE
Anika R Schiele, Inken S Henze, Regula Bettschart-Wolfensberger, Thomas C Gent
Pain refinement represents an important aspect of animal welfare in laboratory animals. Refining analgesia regimens in mice undergoing craniotomy has been sparsely investigated. Here, we sought to investigate the effect of dexmedetomidine in combination with other analgesic drugs on intraoperative anti-nociceptive effects and cardiorespiratory stability. All mice were anaesthetised with isoflurane and received local lidocaine infiltration at the surgical site. Mice were randomised into treatment groups consisting of either carprofen 5 mg kg-1 or meloxicam 5 mg kg-1 with or without dexmedetomidine 0...
March 15, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38539920/correlation-of-blood-hemoglobin-values-with-non-invasive-co-oximetry-measurement-of-sphb-in-dogs-undergoing-elective-ovariohysterectomy
#3
JOURNAL ARTICLE
María Fernanda Espinosa-Morales, Agatha Elisa Miranda-Cortés, Daniel Mota-Rojas, Alejandro Casas-Alvarado, Alejandro Jiménez-Yedra, Alicia Pamela Pérez-Sánchez, Ismael Hernández-Ávalos
Cardiovascular function monitoring has been suggested as a key parameter to determine patient stability during the anesthetic process. However, the use of pulse co-oximetry has been suggested as a technology to complement the monitoring of this system as a direct way to assess hemoglobin (Hb) blood concentration. Therefore, this study aimed to correlate and determine the measurement bias between Hb blood levels with continuously determined blood hemoglobin concentration (SpHb) and arterial oxygen content values (SpOC), both obtained by noninvasive co-oximetry in dogs undergoing elective ovariohysterectomy (OVH)...
March 7, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38539350/decreased-intraoperative-renal-tissue-oxygenation-after-cardiopulmonary-bypass-predicts-cardiac-surgery-associated-acute-kidney-injury-in-neonates
#4
JOURNAL ARTICLE
Paige E Condit, Daniel P Gorski, Michael R Lasarev, Awni M Al-Subu, Matthew W Harer
(1) Background: Near-infrared spectroscopy (NIRS) is a noninvasive tool frequently used during cardiac surgery and postoperatively in the cardiac intensive care unit to monitor regional tissue oxygen saturation. A relationship between trends of intraoperative renal oxygenation and the risk of developing cardiac surgery-associated acute kidney injury (AKI) post-operatively has not yet been established in the neonatal population. The objective of this study is to evaluate the relationship of cerebral and renal oxygenation during cardiopulmonary bypass with cardiac surgery-associated AKI in the first 72 h post-operation in neonates < 30 days of age...
March 7, 2024: Children
https://read.qxmd.com/read/38535200/a-phase-i-iia-prospective-randomized-open-label-study-on-the-safety-and-efficacy-of-nebulized-liposomal-amphotericin-for-invasive-pulmonary-aspergillosis
#5
JOURNAL ARTICLE
Jesús Fortún, Elia Gómez-García de la Pedrosa, Alberto Martínez-Lorca, Patricia Paredes, Pilar Martín-Dávila, Alicia Gómez-López, María José Buitrago, Javier López-Jiménez, Francesca Gioia, Rosa Escudero, Maria Elena Alvarez-Alvarez, Cruz Soriano, Javier Moreno-García, Diana San Miguel, Noelia Vicente, Santiago Moreno
Although nebulized liposomal amphotericin B (NLAB) is being used in invasive pulmonary aspergillosis (IPA) prophylaxis, no clinical trial has shown its efficacy as a therapeutic strategy. NAIFI is the inaugural randomized, controlled clinical trial designed to examine the safety and effectiveness of NLAB (dosage: 25 mg in 6 mL, three times per week for 6 weeks) against a placebo, in the auxiliary treatment of IPA. Throughout the three-year clinical trial, thirteen patients (six NLAB, seven placebo) were included, with 61% being onco-hematological with less than 100 neutrophils/μL...
March 1, 2024: Journal of Fungi (Basel, Switzerland)
https://read.qxmd.com/read/38534525/contactless-blood-oxygen-saturation-estimation-from-facial-videos-using-deep-learning
#6
JOURNAL ARTICLE
Chun-Hong Cheng, Zhikun Yuen, Shutao Chen, Kwan-Long Wong, Jing-Wei Chin, Tsz-Tai Chan, Richard H Y So
Blood oxygen saturation (SpO2 ) is an essential physiological parameter for evaluating a person's health. While conventional SpO2 measurement devices like pulse oximeters require skin contact, advanced computer vision technology can enable remote SpO2 monitoring through a regular camera without skin contact. In this paper, we propose novel deep learning models to measure SpO2 remotely from facial videos and evaluate them using a public benchmark database, VIPL-HR. We utilize a spatial-temporal representation to encode SpO2 information recorded by conventional RGB cameras and directly pass it into selected convolutional neural networks to predict SpO2 ...
March 4, 2024: Bioengineering
https://read.qxmd.com/read/38532926/combined-frequency-domain-near-infrared-spectroscopy-and-diffuse-correlation-spectroscopy-system-for-comprehensive-metabolic-monitoring-of-inspiratory-muscles-during-loading
#7
JOURNAL ARTICLE
Carlos A Gómez, Laurent Brochard, Ewan C Goligher, Dmitry Rozenberg, W Darlene Reid, Darren Roblyer
SIGNIFICANCE: Mechanical ventilation (MV) is a cornerstone technology in the intensive care unit as it assists with the delivery of oxygen in critically ill patients. The process of weaning patients from MV can be long and arduous and can lead to serious complications for many patients. Despite the known importance of inspiratory muscle function in the success of weaning, current clinical standards do not include direct monitoring of these muscles. AIM: The goal of this project was to develop and validate a combined frequency domain near-infrared spectroscopy (FD-NIRS) and diffuse correlation spectroscopy (DCS) system for the noninvasive characterization of inspiratory muscle response to a load...
March 2024: Journal of Biomedical Optics
https://read.qxmd.com/read/38531955/continuous-monitoring-of-physiological-data-using-the-patient-vital-status-fusion-score-in-septic-critical-care-patients
#8
JOURNAL ARTICLE
Philipp L S Ohland, Thomas Jack, Marcel Mast, Anette Melk, André Bleich, Steven R Talbot
Accurate and standardized methods for assessing the vital status of patients are crucial for patient care and scientific research. This study introduces the Patient Vital Status (PVS), which quantifies and contextualizes a patient's physical status based on continuous variables such as vital signs and deviations from age-dependent normative values. The vital signs, heart rate, oxygen saturation, respiratory rate, mean arterial blood pressure, and temperature were selected as input to the PVS pipeline. The method was applied to 70 pediatric patients in the intensive care unit (ICU), and its efficacy was evaluated by matching high values with septic events at different time points in patient care...
March 26, 2024: Scientific Reports
https://read.qxmd.com/read/38530625/acute-high-output-heart-failure-with-pulmonary-hypertension-and-severe-liver-injury-caused-by-amlodipine-poisoning-a-case-report
#9
JOURNAL ARTICLE
Chenlong Wang, Qingcheng Zhu, Dingyu Tan, Joseph Walline, Yachao Wang
Acute high-output heart failure (HOHF) with pulmonary hypertension and liver injury caused by amlodipine poisoning is very rare. We report a 52-year-old woman who suffered from severe shock after an overdose of amlodipine. Hemodynamic monitoring showed that while her left ventricular systolic function and cardiac output were elevated, her systemic vascular resistance decreased significantly. At the same time, the size of her right heart, her central venous pressure, and the oxygen saturation of her central venous circulation all increased abnormally...
March 26, 2024: Cardiovascular Toxicology
https://read.qxmd.com/read/38526537/use-of-sentinel-surveillance-platforms-for-monitoring-sars-cov-2-activity-evidence-from-analysis-of-kenya-influenza-sentinel-surveillance-data
#10
JOURNAL ARTICLE
Daniel Owusu, Linus K Ndegwa, Jorim Ayugi, Peter Kinuthia, Rosalia Kalani, Mary Okeyo, Nancy A Otieno, Gilbert Kikwai, Bonventure Juma, Peninah Munyua, Francis Kuria, Emmanuel Okunga, Ann C Moen, Gideon O Emukule
BACKGROUND: Little is known about the cocirculation of influenza and SARS-CoV-2 viruses during the COVID-19 pandemic and the use of respiratory disease sentinel surveillance platforms for monitoring SARS-CoV-2 activity in sub-Saharan Africa. OBJECTIVE: We aimed to describe influenza and SARS-CoV-2 cocirculation in Kenya and how the SARS-CoV-2 data from influenza sentinel surveillance correlated with that of universal national surveillance. METHODS: From April 2020 to March 2022, we enrolled 7349 patients with severe acute respiratory illness or influenza-like illness at 8 sentinel influenza surveillance sites in Kenya and collected demographic, clinical, underlying medical condition, vaccination, and exposure information, as well as respiratory specimens, from them...
March 25, 2024: JMIR Public Health and Surveillance
https://read.qxmd.com/read/38526074/a-porcine-model-of-acute-respiratory-failure-with-a-continuous-infusion-of-oleic-acid
#11
JOURNAL ARTICLE
Bret D Alvis, Colleen Brophy, Joyce Cheung-Flynn, Marisa Case, Kyle Hocking
This protocol outlines an acute respiratory distress model utilizing centrally administered oleic acid infusion in Yorkshire pigs. Prior to experimentation, each pig underwent general anesthesia, endotracheal intubation, and mechanical ventilation, and was equipped with bilateral jugular vein central vascular access catheters. Oleic acid was administered through a dedicated pulmonary artery catheter at a rate of 0.2 mL/kg/h. The infusion lasted for 60-120 min, inducing respiratory distress. Throughout the experiment, various parameters including heart rate, respiratory rate, arterial blood pressure, central venous pressure, pulmonary artery pressure, pulmonary capillary wedge pressure, end-tidal carbon dioxide, peak airway pressures, and plateau pressures were monitored...
March 8, 2024: Journal of Visualized Experiments: JoVE
https://read.qxmd.com/read/38523024/prospective-randomized-pilot-trial-on-the-effects-of-mild-hypercapnia-on-cerebral-oxygen-saturation-in-patients-undergoing-off-pump-coronary-artery-bypass-grafting
#12
JOURNAL ARTICLE
Chanchal Bhandari, Hemang Gandhi, Anil Panwar, Maruti Haranal, Himani Pandya
OBJECTIVE AND DESIGN: A single-center prospective randomized controlled study was conducted to assess the effect of targeted mild hypercapnia (TMH) on cerebral oxygen saturation (rSO2 ) in patients undergoing off-pump coronary artery bypass grafting (CABG). SETTING AND PARTICIPANTS: A prospective randomized controlled study involving 100 patients undergoing off-pump CABG at U. N. Mehta Hospital, Ahmedabad, Gujarat, India. INTERVENTION: Patients were randomized to either the TMH (PaCO2 45-55 mmHg) or the targeted normocapnia (TN; PaCO2 35-45 mmHg) group, containing 50 patients in each group...
March 6, 2024: Journal of Cardiothoracic and Vascular Anesthesia
https://read.qxmd.com/read/38521629/first-characterization-of-tissue-oxygen-saturation-recovery-patterns-in-pediatric-cardiac-surgery-patients-undergoing-remote-ischemic-preconditioning-and-the-association-with-clinical-outcomes
#13
JOURNAL ARTICLE
Maria A Vélez-Esquivia, Santiago Pedroza, Richard Rivera, Juan Camayo-Zorrilla, Gustavo A Cruz-Suárez
OBJECTIVE: This study aimed to delineate the recovery patterns of regional oxygen saturation (SrO2 ) in pediatric cardiac surgery patients subjected to remote ischemic preconditioning (RIPC), utilizing near-infrared spectroscopy (NIRS) for quantification. It also sought to establish the correlation between these perfusion patterns and postoperative clinical outcomes. DESIGN: A prospective longitudinal observational study. SETTING: The study was conducted at (BLINDED FOR REVIEW), a high-complexity service provider institution in (BLINDED FOR REVIEW)...
March 2, 2024: Journal of Cardiothoracic and Vascular Anesthesia
https://read.qxmd.com/read/38520630/copper-deficiency-anemia-due-to-zinc-supplementation-in-a-chronic-hemodialysis-patient
#14
JOURNAL ARTICLE
Tomoka Watanabe, Satomi Yonemoto, Yoshihiro Ikeda, Kiyotaka Kawaguchi, Tatsuo Tsukamoto
Zinc deficiency causes dysgeusia and dermatitis as well as anemia. As approximately half of dialysis patients have zinc deficiency, zinc supplementation should be considered in case of erythropoiesis-stimulating agent (ESA)-hyporesponsive anemia. We report a case of a chronic dialysis patient with copper deficiency anemia caused by standard-dose zinc supplementation. The patient was a 70-year-old woman who had received maintenance hemodialysis for 8 years due to diabetic nephropathy. She had been treated with weekly administration of darbepoetin 30 μg for renal anemia, which resulted in Hb 12 to 14 g/dL...
March 23, 2024: CEN Case Reports
https://read.qxmd.com/read/38518819/influences-of-shallow-groundwater-depth-on-n-2-o-diffusion-along-the-soil-profile-of-summer-maize-fields-in-north-china-plain
#15
JOURNAL ARTICLE
Zhao Li, Xurun Li, Qiuying Zhang, Fadong Li, Yunfeng Qiao, Shanbao Liu, Peifang Leng, Chao Tian, Gang Chen, Hefa Cheng
The emissions of nitrous oxide (N2 O) from agricultural fields are a significant contribution to global warming. Understanding the mechanisms of N2 O emissions from agricultural fields is essential for the development of N2 O emission mitigation strategies. Currently, there are extensive studies on N2 O emissions on the surface of agricultural soils, while studies on N2 O fluxes at the interface between the saturated and unsaturated zones (ISU) are limited. Uncertainties exist regarding N2 O emissions from the soil-shallow groundwater systems in agricultural fields...
March 20, 2024: Science of the Total Environment
https://read.qxmd.com/read/38513849/responses-of-underground-air-and-drip-water-geochemistry-to-meteorological-factors-a-multi-parameter-approach-in-the-rull-cave-spain
#16
JOURNAL ARTICLE
M Candela Ruiz, Concepción Pla, Angel Fernandez-Cortes, David Benavente
Our research aims to assess the complex interactions between the elements that constitute and influence a cave system through the analysis of an extensive dataset of climatic and environmental parameters (222 Rn, CO2 , drip rates, chemical composition, and environmental isotopes) measured in air, water, and solid in the Rull Cave (southeastern Spain). Of particular importance is understanding the effect of rainfall and temperature on water and gas transport through the epikarst and the involved processes. Our results show that the cave gaseous concentration patterns do not only depend on the temperature-caused movement of air masses, but they can also be affected by abundant rainfall...
March 19, 2024: Science of the Total Environment
https://read.qxmd.com/read/38512116/enhancement-in-the-induction-heating-efficacy-of-sol-gel-derived-sio-2-cao-na-2-o-p-2-o-5-bioglass-ceramics-by-incorporating-magnetite-nanoparticles
#17
JOURNAL ARTICLE
Nitu, Rushikesh Fopase, Lalit Mohan Pandey, Krishna Priya Hazarika, Jyoti Prasad Borah, Rajendra K Singh, Ananthakrishnan Srinivasan
Magnetite (Fe3 O4 ) nanoparticle (MNP)-substituted glass-ceramic (MSGC) powders with compositions of (45 - x )SiO2 -24.5CaO-24.5Na2 O-6P2 O5 - x Fe3 O4 ( x = 5, 8, and 10 wt%) have been prepared by a sol-gel route by introducing Fe3 O4 nanoparticles during the synthesis. The X-ray diffraction patterns of the as-prepared MSGC nanopowders revealed the presence of combeite (Na2 Ca2 Si3 O9 ), magnetite, and sodium nitrate (NaNO3 ) crystalline phases. Heat-treatment up to 700 °C for 1 h resulted in the complete dissolution of NaNO3 along with partial conversion of magnetite into hematite (α-Fe2 O3 )...
March 21, 2024: Journal of Materials Chemistry. B, Materials for Biology and Medicine
https://read.qxmd.com/read/38510705/recent-advances-in-wearable-sensors-and-data-analytics-for-continuous-monitoring-and-analysis-of-biomarkers-and-symptoms-related-to-covid-19
#18
REVIEW
Huijie Li, Jianhe Yuan, Gavin Fennell, Vagif Abdulla, Ravi Nistala, Dima Dandachi, Dominic K C Ho, Yi Zhang
The COVID-19 pandemic has changed the lives of many people around the world. Based on the available data and published reports, most people diagnosed with COVID-19 exhibit no or mild symptoms and could be discharged home for self-isolation. Considering that a substantial portion of them will progress to a severe disease requiring hospitalization and medical management, including respiratory and circulatory support in the form of supplemental oxygen therapy, mechanical ventilation, vasopressors, etc. The continuous monitoring of patient conditions at home for patients with COVID-19 will allow early determination of disease severity and medical intervention to reduce morbidity and mortality...
September 2023: Biophysics reviews
https://read.qxmd.com/read/38510672/wireless-patient-monitoring-system-based-on-smart-wristbands-and-central-user-interface-software
#19
JOURNAL ARTICLE
Mohammad Hossein Vafaie, Ebrahim Ahmadi Beni
In this article, a patient monitoring system is proposed that is able to obtain heart rate and oxygen saturation (SpO2 ) levels of patients, identify abnormal conditions, and inform emergency status to the nurses. The proposed monitoring system consists of smart patient wristbands, smart nurse wristbands, central monitoring user interface (UI) software, and a wireless communication network. In the proposed monitoring system, a unique smart wristband is dedicated to each of the patients and nurses. To measure heart rate and SpO2 level, a pulse oximeter sensor is used in the patient wristbands...
2024: Journal of Medical Signals and Sensors
https://read.qxmd.com/read/38508649/decentralising-chronic-disease-management-in-sub-saharan-africa-a-protocol-for-the-qualitative-process-evaluation-of-community-based-integrated-management-of-hiv-diabetes-and-hypertension-in-tanzania-and-uganda
#20
JOURNAL ARTICLE
Marie-Claire Van Hout, Mathias Akugizibwe, Elizabeth Henry Shayo, Moreen Namulundu, Francis Xavier Kasujja, Ivan Namakoola, Josephine Birungi, Joseph Okebe, Jamie Murdoch, Sayoki Godfrey Mfinanga, Shabbar Jaffar
INTRODUCTION: Sub-Saharan Africa continues to experience a syndemic of HIV and non-communicable diseases (NCDs). Vertical (stand-alone) HIV programming has provided high-quality care in the region, with almost 80% of people living with HIV in regular care and 90% virally suppressed. While integrated health education and concurrent management of HIV, hypertension and diabetes are being scaled up in clinics, innovative, more efficient and cost-effective interventions that include decentralisation into the community are required to respond to the increased burden of comorbid HIV/NCD disease...
March 20, 2024: BMJ Open
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