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Pulse oximeter

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https://www.readbyqxmd.com/read/28920806/accuracy-of-noninvasive-anesthetic-monitoring-in-the-anesthetized-giraffe-giraffa-camelopardalis
#1
Mads F Bertelsen, Carsten Grøndahl, George F Stegmann, Cathrine Sauer, Niels H Secher, J Michael Hasenkam, Mads Damkjær, Christian Aalkjær, Tobias Wang
This study evaluated the accuracy of pulse oximetry, capnography, and oscillometric blood pressure during general anesthesia in giraffes (Giraffa camelopardalis). Thirty-two giraffes anesthetized for physiologic experiments were instrumented with a pulse oximeter transmittance probe positioned on the tongue and a capnograph sampling line placed at the oral end of the endotracheal tube. A human size 10 blood pressure cuff was placed around the base of the tail, and an indwelling arterial catheter in the auricular artery continuously measured blood pressure...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28904271/frequent-oxygen-desaturation-during-sleep-on-the-day-of-bronchoscopy-evaluated-by-continuous-pulse-oximeter-monitoring
#2
Yasuo Chojin, Hiroshi Ishimoto, Shingo Noguchi, Toshinori Kawanami, Tatsuji Kato, Hiroshi Mukae, Kazuhiro Yatera
To perform a bronchoscopy safely, it is very important to make a risk assessment before and after the procedure. There have been no reports of hypoxemia during sleep on the day after a bronchoscopic examination; therefore, we evaluated the oxygen saturation status during sleep on the days before and after bronchoscopy. Thirty patients that underwent bronchoscopy were studied. Continuous pulse oximetry monitoring was performed on the day before bronchoscopy and the day when the bronchoscopy was performed. The average oxygen saturation levels and the oxygen desaturation index (ODI) were evaluated...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28899539/can-the-analysis-of-built-in-software-of-cpap-devices-replace-polygraphy-in-children
#3
Sonia Khirani, Vincent Delord, Jorge Olmo Arroyo, Livio De Sanctis, Annick Frapin, Alessandro Amaddeo, Brigitte Fauroux
OBJECTIVES: Polysomnography (PSG) is the gold standard for the scoring of residual respiratory events during continuous positive airway pressure (CPAP). Studies comparing PSG scoring with automatic scoring by the built-in software of CPAP devices have reported acceptable agreements except for the hypopnea index (HI) in adult patients, but no study has yet been conducted in children. The aim of the present study was to compare the automatic scoring by CPAP device and manual scoring using the software tracings of the CPAP device integrating pulse oximetry (SpO2) with in-lab polygraphy (PG)...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28893740/an-unusual-presentation-of-chronic-cyanide-toxicity-from-self-prescribed-apricot-kernel-extract
#4
Alex Konstantatos, Malini Shiv Kumar, Aidan Burrell, Joel Smith
Hypoxia under general anaesthesia is a potentially life-threatening condition. A seemingly well 67-year-old man appeared hypoxic with peripheral pulse oximetric measurement during routine anaesthesia. Postoperatively, the patient admitted to daily self-prescription of apricot kernel extract for a period of 5 years. Apricot kernel is a commonly taken extract used for a range of ailments, and is associated with cyanide toxicity, which was confirmed through blood analysis. Our explanation for the hypoxic measurement was the presence of free cyanide interfering with functioning of the peripheral pulse oximeter...
September 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28861669/reproducibility-of-the-pleth-variability-index-in-premature-infants
#5
Wilhelmina J den Boogert, Hugo A van Elteren, Tom G Goos, Irwin K M Reiss, Rogier C J de Jonge, Victor J van den Berg
The aim was to assess the reproducibility of the Pleth Variability Index (PVI), developed for non-invasive monitoring of peripheral perfusion, in preterm neonates below 32 weeks of gestational age. Three PVI measurements were consecutively performed in stable, comfortable preterm neonates in the first 48 h of life. On each occasion, pulse oximeter sensors were attached to two different limbs for 5 min. Reproducibility was assessed with the intra-class correlation coefficient (ICC) and Bland-Altman analysis...
August 31, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28857989/albuminuria-in-pediatric-patients-with-adenotonsillar-hypertrophy
#6
Ozlem Unsal, Gulpembe Bozkurt, Meltem Esen Akpinar, Egehan Salepci, Gokce Aktas Oguz, Berna Uslu Coskun
The relationship between intermittent nocturnal hypoxia and albuminuria in pediatric patients with adenotonsillar hypertrophy was evaluated in this prospective study. Fifty children with grade 3 to 4 adenotonsillar hypertrophy scheduled for adenoidectomy and/or adenotonsillectomy were selected for study group. Fifteen patients with adenotonsillar grade 1 to 2 or adenotonsillectomized subjects in a similar range of sex, age, and body mass index scheduled for other surgeries were selected for control group. All children were monitored using finger pulse oximeter during the night before surgery...
August 28, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28854539/predicting-successful-supraclavicular-brachial-plexus-block-using-pulse-oximeter-perfusion-index
#7
A Abdelnasser, B Abdelhamid, A Elsonbaty, A Hasanin, A Rady
Background: Supraclavicular nerve block is a popular approach for anaesthesia for upper limb surgeries. Conventional methods for evaluation of block success are time consuming and need patient cooperation. The aim of this study was to evaluate whether the perfusion index (PI) can be used to predict and provide a cut-off value for ultrasound-guided supraclavicular nerve block success. Methods: The study included 77 patients undergoing elective orthopaedic procedures under ultrasound-guided supraclavicular nerve block...
August 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28833376/development-and-clinical-evaluation-of-a-new-sensor-design-for-buccal-pulse-oximetry-in-horses
#8
J K Reiners, W Rossdeutscher, K Hopster, S B R Kästner
BACKGROUND: The use of pulse oximetry in horses is limited due to inadequate readings with conventional transmission sensor probes. OBJECTIVES: The objectives of this study were 1) to develop an improved sensor design for horses to be used at an appropriate anatomical site and 2) to evaluate this design in an experimental study. STUDY DESIGN: In vivo experiment. METHODS: A new sensor design for reflectance pulse oximetry at the buccal mucosa was developed...
August 18, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28823109/comparison-of-two-home-sleep-testing-devices-with-different-strategies-for-diagnosis-of-osa
#9
Tyler Gumb, Akosua Twumasi, Shahnaz Alimokhtari, Alan Perez, Kathleen Black, David M Rapoport, Jag Sunderram, Indu Ayappa
PURPOSE: Home sleep testing devices are being widely used in diagnosis/screening for obstructive sleep apnea (OSA). We examined differences in OSA metrics obtained from two devices with divergent home monitoring strategies, the Apnea Risk Evaluation System (ARES™, multiple signals plus forehead reflectance oximetry) and the Nonin WristOx2™ (single channel finger transmission pulse oximeter), compared to differences from night-night variability of OSA. METHODS: One hundred fifty-two male/26 female subjects (BMI = 30...
August 19, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28794534/distributing-pulse-oximeter-an-initiative-for-improving-patient-safety-and-care
#10
Amit Rastogi, Anil Agarwal, Prabhat Kumar Singh, Rudrashish Haldar, Ashish Kannaujia
No abstract text is available yet for this article.
July 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28793385/factors-which-influence-concordance-among-measurements-obtained-by-different-pulse-oximeters-currently-used-in-some-clinical-situations
#11
Candelaria de la Merced Díaz-González, Milagros de la Rosa-Hormiga, Josefa M Ramal-López, Juan José González-Henríquez, María Sandra Marrero-Morales
AIMS: This study evaluates both concordance among those measurements obtained by three different pulse oximeters currently used by nursing professionals in hospital units and the factors which can influence this concordance. BACKGROUND: Many models of wireless pulse oximeters in the present market do not offer possibility of calibration and, therefore, they do not ensure patients' safety in daily clinical practice. DESIGN: This is a descriptive and cross-sectional study...
August 9, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28791567/the-oxygen-reserve-index-ori-a-new-tool-to-monitor-oxygen-therapy
#12
REVIEW
T W L Scheeren, F J Belda, A Perel
Supplemental oxygen is administered in the vast majority of patients in the perioperative setting and in the intensive care unit to prevent the potentially deleterious effects of hypoxia. On the other hand, the administration of high concentrations of oxygen may induce hyperoxia that may also be associated with significant complications. Oxygen therapy should therefore be precisely titrated and accurately monitored. Although pulse oximetry has become an indispensable monitoring technology to detect hypoxemia, its value in assessing the oxygenation status beyond the range of maximal arterial oxygen saturation (SpO2 ≥97%) is very limited...
August 8, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28789685/remote-monitoring-of-cardiorespiratory-signals-from-a-hovering-unmanned-aerial-vehicle
#13
Ali Al-Naji, Asanka G Perera, Javaan Chahl
BACKGROUND: Remote physiological measurement might be very useful for biomedical diagnostics and monitoring. This study presents an efficient method for remotely measuring heart rate and respiratory rate from video captured by a hovering unmanned aerial vehicle (UVA). The proposed method estimates heart rate and respiratory rate based on the acquired signals obtained from video-photoplethysmography that are synchronous with cardiorespiratory activity. METHODS: Since the PPG signal is highly affected by the noise variations (illumination variations, subject's motions and camera movement), we have used advanced signal processing techniques, including complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and canonical correlation analysis (CCA) to remove noise under these assumptions...
August 8, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28768288/reliability-and-validity-of-a-smartphone-paired-pulse-oximeter-for-screening-of-critical-congenital-heart-defects-in-newborns
#14
Maurice J Huizing, Eduardo Villamor-Martínez, Ingrid A Chavagne, Ward Y Vanagt, Marc A E Spaanderman, Eduardo Villamor
BACKGROUND: Barriers to widespread implementation of pulse oximetry screening of critical congenital heart defects (CCHD) in newborns include increasing trends of out-of-hospital births and cost of equipment. In recent years, smartphone-compatible pulse oximeters have appeared on the market, but the validity of such devices in the setting of CCHD screening has not been evaluated. OBJECTIVES: To compare the performance in CCHD screening of a smartphone-paired pulse oximeter (Masimo iSpO2-Rx™) and a hospital-grade pulse oximeter (Masimo Radical-7™)...
August 3, 2017: Neonatology
https://www.readbyqxmd.com/read/28767091/heart-rate-detection-using-microsoft-kinect-validation-and-comparison-to-wearable-devices
#15
Ennio Gambi, Angela Agostinelli, Alberto Belli, Laura Burattini, Enea Cippitelli, Sandro Fioretti, Paola Pierleoni, Manola Ricciuti, Agnese Sbrollini, Susanna Spinsante
Contactless detection is one of the new frontiers of technological innovation in the field of healthcare, enabling unobtrusive measurements of biomedical parameters. Compared to conventional methods for Heart Rate (HR) detection that employ expensive and/or uncomfortable devices, such as the Electrocardiograph (ECG) or pulse oximeter, contactless HR detection offers fast and continuous monitoring of heart activities and provides support for clinical analysis without the need for the user to wear a device. This paper presents a validation study for a contactless HR estimation method exploiting RGB (Red, Green, Blue) data from a Microsoft Kinect v2 device...
August 2, 2017: Sensors
https://www.readbyqxmd.com/read/28765654/-analysis-of-clinical-safety-in-the-units-of-allergy-of-the-valencian-community
#16
M D De Las Marinas Alvarez, B E Garcia Figueroa, R Alamar, C Pérez Francés, C Martorell Calatayud, M D Hernandez Fernandez de Ro
The introduction of new diagnostic and therapeutic procedures involving allergen exposure may increase the risk of allergic reactions. We designed and distributed an anonymous questionnaire among the allergy units of the Valencian Community in order to collect information on measures to ensure clinical safety. Twelve hospital outpatient clinics and 8 ambulatory care centres reported similar patterns of activities, including the use of critical care units, emergency rooms or day hospitals for higher risk techniques...
July 28, 2017: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/28764215/comparative-evaluation-of-accuracy-of-pulse-oximeters-and-factors-affecting-their-performance-in-a-tertiary-intensive-care-unit
#17
Anupam Kumar Singh, Malvinder Singh Sahi, Bablesh Mahawar, Sajjan Rajpurohit
INTRODUCTION: Pulse oximetry is a widely used tool, unfortunately there is a paucity of data investigating its accuracy in Intensive Care Units (ICU) and if they are able to meet mandated FDA criteria as claimed by them in critically ill patients. AIM: To assess bias, precision and accuracy of pulse oximeters used in ICU and factors affecting them. MATERIALS AND METHODS: A prospective cohort study, including 129 patients admitted to the ICU of a tertiary referral centre...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28702058/effectiveness-of-audiovisual-distraction-in-behavior-modification-during-dental-caries-assessment-and-sealant-placement-in-children-with-autism-spectrum-disorder
#18
Kausar Sadia Fakhruddin, Hisham Yehia El Batawi
BACKGROUND: The aim of this study was to evaluate the effectiveness of audiovisual (AV) distraction in behavior modification during dental caries assessment and sealant placement in children with autism spectrum disorder. MATERIALS AND METHODS: This study was conducted on 28 children diagnosed with autism spectrum disorder, aged 6.5-9.8 years. Children underwent one introductory (desensitization) appointment and three treatment sessions. During the introductory session, children had the procedures explained to them, they watched a movie projected on a screen while oral screening and assessment of cooperation level were carried out...
May 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28701897/usefulness-of-pulse-oximeter-that-can-measure-spo2-to-one-digit-after-decimal-point
#19
Akihiro Yamamoto, Naoto Burioka, Aritoshi Eto, Takashi Amisaki, Eiji Shimizu
Pulse oximeters are used to noninvasively measure oxygen saturation in arterial blood (SaO2). Although arterial oxygen saturation measured by pulse oximeter (SpO2) is usually indicated in 1% increments, the value of SaO2 from arterial blood gas analysis is not an integer. We have developed a new pulse oximeter that can measure SpO2 to one digit after the decimal point. The values of SpO2 from the newly developed pulse oximeter are highly correlated with the values of SaO2 from arterial blood gas analysis (SpO2 = 0...
June 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28682161/effect-of-swim-intensity-on-responses-to-dynamic-apnoea
#20
A Guimard, K Collomp, H Zorgati, S Brulaire, X Woorons, V Amiot, F Prieur
The aim of this study was to determine the influence of swim intensity on acute responses to dynamic apnoea. 9 swimmers performed one 50 m front crawl trial in four different conditions: at 400 m velocity (V400) with normal breathing (NB), at V400 in complete apnoea (Ap), at maximal velocity (Vmax) with NB and at Vmax in Ap. Peak heart rate (HRpeak), blood lactate concentration after exercise (Lacpost ex) and Borg rating of perceived exertion (RPE) were measured. Arterial oxygen saturation (SpO2) was monitored with a pulse oximeter at forehead level during and after exercise...
July 6, 2017: Journal of Sports Sciences
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