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Vital Sign Monitor

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https://www.readbyqxmd.com/read/30338163/full-video-pulse-extraction
#1
Wenjin Wang, Albertus C den Brinker, Gerard de Haan
This paper introduces a new method to automate heart-rate detection using remote photoplethysmography (rPPG). The method replaces the commonly used region of interest (RoI) detection and tracking, and does not require initialization. Instead, it combines a number of candidate pulse-signals computed in the parallel, each biased towards differently colored objects in the scene. The method is based on the observation that the temporally averaged colors of video objects (skin and background) are usually quite stable over time in typical application-driven scenarios, such as the monitoring of a subject sleeping in bed, or an infant in an incubator...
August 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/30336635/challenges-and-potential-solutions-of-psychophysiological-state-monitoring-with-bioradar-technology
#2
Lesya Anishchenko
Psychophysiological state monitoring provides a promising way to detect stress and accurately assess wellbeing. The purpose of the present work was to investigate the advantages of utilizing a new unobtrusive multi-transceiver system on the accuracy of remote psychophysiological state monitoring by means of a bioradar technique. The technique was tested in laboratory conditions with the participation of 35 practically healthy volunteers, who were asked to perform arithmetic and physical workload tests imitating different types of stressors...
October 17, 2018: Diagnostics
https://www.readbyqxmd.com/read/30324927/a-comparative-assessment-of-intranasal-and-oral-dexmedetomidine-for-procedural-sedation-in-pediatric-dental-patients
#3
Vinod Patel, Neerja Singh, Anil Kumar Saksena, Subash Singh, S K Sonkar, S Mandeep Jolly
Objectives: The objective of this study was to assess the safety and efficacy of intranasal and oral dexmedetomidine for procedural sedation in pediatric dental patients. Materials and Methods: Forty-four uncooperative American Society of Anesthesiologists Grade-I children, requiring dental treatment were randomly divided into four groups who received different doses of dexmedetomidine through intranasal and oral routes. The vital signs were monitored continuously during each visit...
October 2018: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/30324856/a-custom-made-interface-to-integrate-recording-of-pulse-rate-and-blood-pressure-during-urodynamics-investigations
#4
Ian J S Boddy, Simon Fulford, Charlotte R Kemp
Patients with a spinal cord injury above the 6th thoracic vertebrae may be prone to autonomic dysreflexia (AD) in response to bladder stimulus associated with a urodynamics investigation. It is essential that these patients are managed carefully in the urodynamics clinic in order to prevent life-threatening hypertension and bradycardia. Part of this management is the measurement and manual recording of pulse rate (PR) and non-invasive blood pressure (NIBP), alongside the standard urodynamics data set. The purpose of recording these additional data is to identify the characteristic drop in PR and rise in NIBP that indicates the onset of AD...
October 16, 2018: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/30319784/development-and-evaluation-of-a-novel-vital-signs-alert-device-for-use-in-pregnancy-in-low-resource-settings
#5
Hannah L Nathan, Nicola Vousden, Elodie Lawley, Annemarie de Greeff, Natasha L Hezelgrave, Nicola Sloan, Nina Tanna, Shivaprasad S Goudar, Muchabayiwa F Gidiri, Jane Sandall, Lucy C Chappell, Andrew H Shennan
Objectives: Haemorrhage, hypertension, sepsis and abortion complications (often from haemorrhage or sepsis) contribute to 60% of all maternal deaths. Each is associated with vital signs (blood pressure (BP) and pulse) abnormalities, and the majority of deaths are preventable through simple and timely intervention. This paper presents the development and evaluation of the CRADLE Vital Signs Alert (VSA), an accurate, low-cost and easy-to-use device measuring BP and pulse with an integrated traffic light early warning system...
October 2018: BMJ Innovations
https://www.readbyqxmd.com/read/30310020/-latest-monitoring-systems-for-vital-signs-in-cardiothoracic-surgery
#6
Shunsuke Kawamoto
In this review article, the latest monitoring systems for vital signs in cardiothoracic surgery, including a multi-wavelength pulse oximeter, a transcutaneous blood gas monitoring system, a modified pulmonary artery catheter, and modern less-invasive cardiac output measurement systems are introduced. These less-invasive and real-time/continuous monitoring technologies would provide useful information for perioperative care after cardiothoracic surgeries, and improve the outcomes of surgeries.
September 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/30306816/intramuscular-dimethyl-trisulfide-efficacy-in-a-large-swine-model-of-acute-severe-cyanide-toxicity
#7
Tara B Hendry-Hofer, Alyssa E Witeof, Dennean S Lippner, Patrick C Ng, Sari B Mahon, Matthew Brenner, Gary A Rockwood, Vikhyat S Bebarta
BACKGROUND: Cyanide is a deadly compound used as a terrorist agent. Current FDA approved antidotes require intravenous administration, limiting their utility in a mass casualty scenario. Dimethyl trisulfide (DMTS), a sulfur-based molecule, binds cyanide converting it to the less toxic by-product thiocyanate. Studies evaluating efficacy in rodents have been performed, but a large, clinically relevant animal model has not been reported. OBJECTIVE: This study evaluates the efficacy of intramuscular DMTS on survival and clinical outcomes in a swine model of acute, severe cyanide toxicity...
October 11, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/30306737/wireless-vitals-proof-of-concept-for-wireless-patient-monitoring-in-an-emergency-department-setting
#8
Joakim Glasin, Joakim Henricson, Lars-Göran Lindberg, Daniel Wilhelms
Vital sign assessment is a common task in emergency medicine, but resources for continuous monitoring are restricted, data is often recorded manually, and entangled wires cause frustration. Therefore, we designed a small, wireless photoplethysmographic device capable of continuously assessing pulse, respiratory frequency and oxygen saturation on the sternum and tested the performance and feasibility in an emergency department setting. Fifty (56.3 ± 20.2 years), consenting emergency patients (29 male) were recruited...
October 10, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/30303194/-the-missed-care-in-nursing-homes-a-pilot-study
#9
Ines Basso, Marco Bonaudo, Valerio Dimonte, Sara Campagna
. The missed care in Nursing Homes: a pilot study. INTRODUCTION: To date missed care have been described mostly in hospitals and data on nursing homes (NH) are missing. AIM: To describe missed care in NH residents identifying their perceived impact and seriousness. METHODS: A pilot study was conducted in 10 Piedmont NHs. For each omitted or delayed care on 20 residents observed for 3 consecutive days, the nurses provided information on the type of care, and information on the residents and on the organization were collected...
July 2018: Assistenza Infermieristica e Ricerca: AIR
https://www.readbyqxmd.com/read/30287793/resonator-based-switching-technique-between-ultra-wide-band-uwb-and-single-dual-continuously-tunable-notch-behaviors-in-uwb-radar-for-wireless-vital-signs-monitoring
#10
MuhibUr Rahman, Mahdi NaghshvarianJahromi, Seyed Sajad Mirjavadi, Abdel Magid Hamouda
This paper presents a novel resonator that can switch and create three important behaviors within the same antenna using miniaturized capacitors. The resonator was integrated into conventional Ultra-Wide Band (UWB) antenna to achieve UWB and Single/Dual continuously tunable-notch behaviors. The Single/Dual notched was continuously tuned to our desired frequency band by changing the value of the capacitors. The antenna designed and fabricated to validate these behaviors had a compact size of 24 × 30.5 mm², including the ground plane...
October 4, 2018: Sensors
https://www.readbyqxmd.com/read/30283166/inhalation-of-ketamine-in-different-doses-to-decrease-the-severity-of-postoperative-sore-throat-in-surgeries-under-general-anesthesia-patients
#11
Shivpal Dan Charan, Mohd Yunus Khilji, Rashmi Jain, Vishal Devra, Madhu Saxena
Context: Postoperative sore throat (POST) occurs in 21%-65% of patients. Nebulization of ketamine reduces POST. Aims: The aim of this study is to see the effectiveness of nebulized ketamine in different doses to reduce POST and observe adverse effects, if any. Settings and Design: This was a prospective, randomized, and double-blind controlled trial. One hundred and fifty patients of the American Society of Anesthesiologists physical status Classes I and II, in the age group of 18-60 years, of either sex, undergoing surgery under general anesthesia were randomized into three groups...
July 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/30278319/rapid-and-longer-term-antidepressant-effects-of-repeated-dose-intravenous-ketamine-for-patients-with-unipolar-and-bipolar-depression
#12
Wei Zheng, Yan-Ling Zhou, Wei-Jian Liu, Cheng-Yu Wang, Yan-Ni Zhan, Han-Qiu Li, Li-Jian Chen, Ming Ding Li, Yu-Ping Ning
OBJECTIVE: Single-dose intravenous (IV) injection of ketamine has shown rapid but transient antidepressant effects. The strategy of repeated-dose ketamine infusions to maintain antidepressant effects has received little systematic study. This study was conducted to examine the efficacy and tolerability of six ketamine infusions in Chinese patients with unipolar and bipolar depression. METHODS: Ninety seven patients with unipolar (n = 77) and bipolar (n = 20) depression received repeated ketamine infusions (0...
September 25, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/30271155/krait-envenomation-in-thailand
#13
Achara Tongpoo, Charuwan Sriapha, Aimon Pradoo, Umaporn Udomsubpayakul, Sahaphume Srisuma, Winai Wananukul, Satariya Trakulsrichai
Purpose: Three species in the genus Bungarus inhabit Thailand. Among these, Bungarus candidus (Malayan krait) is the most common and deadliest. Currently, the clinical manifestations of patients envenomed by kraits, especially Bungarus fasciatus (banded krait), have not been thoroughly investigated. This study was performed to elucidate the clinical manifestations and outcomes of patients bitten by kraits in Thailand. Materials and methods: The data of krait envenomation cases that occurred during a 9-year period were obtained from the Ramathibodi Poison Center Toxic Exposure Surveillance System and retrospectively analyzed...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/30260675/spearcon-sequences-for-monitoring-multiple-patients-laboratory-investigation-comparing-two-auditory-display-designs
#14
Simon Y W Li, Man-Kei Tse, Birgit Brecknell, Penelope M Sanderson
OBJECTIVE: The aim was to compare the effectiveness of two auditory displays, implemented with spearcons (time-compressed speech), for monitoring multiple patients. BACKGROUND: Sequences of sounds can convey information about patients' vital signs, such as oxygen saturation (SpO2 ) and heart rate (HR). We tested whether participants could monitor five patients using spearcon-based sound sequences. METHOD: A 2 × 3 within-subjects design was used...
September 27, 2018: Human Factors
https://www.readbyqxmd.com/read/30256808/improved-clinical-management-but-not-patient-outcome-in-women-with-postpartum-haemorrhage-an-observational-study-of-practical-obstetric-team-training
#15
Tinna Baldvinsdóttir, Marie Blomberg, Caroline Lilliecreutz
OBJECTIVE: Postpartum haemorrhage (PPH) is the most common obstetric emergency. A well-established postpartum haemorrhage protocol in the labour ward is crucial for effective treatment. The aim of the study was to investigate if practical obstetric team training improves the patient outcome and clinical management of PPH. SETTING: The practical obstetric team training (PROBE) at Linköping University Hospital, Sweden, with approximate 3000 deliveries annually, was studied between the years of 2004-2011...
2018: PloS One
https://www.readbyqxmd.com/read/30249584/a-cloud-based-virtual-outpatient-clinic-for-patient-centered-care-proof-of-concept-study
#16
Jelske Marije de Jong, Paula Am Ogink, Carin Gm van Bunningen, Rieke Jb Driessen, Lucien Jlpg Engelen, Barend Heeren, Sebastian Jh Bredie, Tom H van de Belt
BACKGROUND: Most electronic health (eHealth) interventions offered to patients serve a single purpose and lack integration with other tools or systems. This is problematic because the majority of patients experience comorbidity and chronic disease, see multiple specialists, and therefore have different needs regarding access to patient data, communication with peers or providers, and self-monitoring of vital signs. A multicomponent digital health cloud service that integrates data sharing, collection, and communication could facilitate patient-centered care in combination with a hospital patient portal and care professionals...
September 24, 2018: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/30249470/metabolic-abnormalities-and-low-dietary-omega-3-are-associated-with-symptom-severity-and-worse-functioning-prior-to-the-onset-of-psychosis-findings-from-the-north-american-prodrome-longitudinal-studies-consortium
#17
Kristin S Cadenhead, Amedeo Minichino, Skylar Kelsven, Jean Addington, Carrie Bearden, Tyrone D Cannon, Barbara A Cornblatt, Dan Mathalon, Thomas H McGlashan, Diana O Perkins, Larry J Seidman, Ming Tsuang, Elaine F Walker, Scott W Woods, Jeff Yao
OBJECTIVE: Patients with schizophrenia have a high prevalence of metabolic disorders and cardiovascular mortality. It is possible that a vulnerability to metabolic abnormalities is associated with risk for psychosis, symptoms and functionality. In this study, we evaluate demographic information, cardiometabolic indices, symptoms and functioning in an antipsychotic free cohort at Clinical High Risk (CHR) for psychosis from the NAPLS Omega 3 fatty acid clinical trial. METHOD: Subjects received physical exams and metabolic monitoring prior to randomization into the Omega 3 versus Placebo trial...
September 21, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/30247244/combining-national-early-warning-score-with-soluble-urokinase-plasminogen-activator-receptor-supar-improves-risk-prediction-in-acute-medical-patients-a-registry-based-cohort-study
#18
Line J H Rasmussen, Steen Ladelund, Thomas H Haupt, Gertrude E Ellekilde, Jesper Eugen-Olsen, Ove Andersen
OBJECTIVES: Soluble urokinase plasminogen activator receptor is a prognostic biomarker associated with critical illness, disease progression, and risk of mortality. We aimed to evaluate whether soluble urokinase plasminogen activator receptor adds prognostic value to a vital sign-based score for clinical monitoring of patient risk (National Early Warning Score) in acute medical patients. DESIGN: Registry-based observational cohort study of consecutively admitted acute medical patients...
September 21, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/30238165/traffic-priority-based-channel-assignment-technique-for-critical-data-transmission-in-wireless-body-area-network
#19
M Ambigavathi, D Sridharan
In recent days, intelligent biomedical sensors and wearable devices are changing the healthcare industry by providing various heterogeneous vital signs of patients to the hospitals, caregivers, and clinicals. This collective form of monitoring sensor devices forms a very short-range Wireless Body Area Network (WBAN) and plays a key role in the data gathering process. If any sensor node in the network detects abnormal values that should be transmitted promptly via wireless medium with less delay. A single medium allows one-way delivery of a data packet, and it may not be sufficient to satisfy the high volume of communication demand between the sensor nodes in the network...
September 20, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/30235784/bandwidth-enhancement-and-frequency-scanning-array-antenna-using-novel-uwb-filter-integration-technique-for-ofdm-uwb-radar-applications-in-wireless-vital-signs-monitoring
#20
MuhibUr Rahman, Mahdi NaghshvarianJahromi, Seyed Sajad Mirjavadi, Abdel Magid Hamouda
This paper presents the bandwidth enhancement and frequency scanning for fan beam array antenna utilizing novel technique of band-pass filter integration for wireless vital signs monitoring and vehicle navigation sensors. First, a fan beam array antenna comprising of a grounded coplanar waveguide (GCPW) radiating element, CPW fed line, and the grounded reflector is introduced which operate at a frequency band of 3.30 GHz and 3.50 GHz for WiMAX (World-wide Interoperability for Microwave Access) applications...
September 19, 2018: Sensors
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