Oximetry: The determination of oxygen-hemoglobin saturation of blood either by withdrawing a sample and passing it through a classical photoelectric oximeter or by electrodes attached to some translucent part of the body like finger, earlobe, or skin fold. It includes non-invasive oxygen monitoring by pulse oximetry.Oxygen: An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.Blood Gas Monitoring, Transcutaneous: The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced hemoglobin.Capnography: Continuous recording of the carbon dioxide content of expired air.Monitoring, Intraoperative: The constant checking on the state or condition of a patient during the course of a surgical operation (e.g., checking of vital signs).Oxyhemoglobins: A compound formed by the combination of hemoglobin and oxygen. It is a complex in which the oxygen is bound directly to the iron without causing a change from the ferrous to the ferric state.Neonatal Screening: The identification of selected parameters in newborn infants by various tests, examinations, or other procedures. Screening may be performed by clinical or laboratory measures. A screening test is designed to sort out healthy neonates (INFANT, NEWBORN) from those not well, but the screening test is not intended as a diagnostic device, rather instead as epidemiologic.Hypoventilation: A reduction in the amount of air entering the pulmonary alveoli.Anoxia: Relatively complete absence of oxygen in one or more tissues.Monitoring, Physiologic: The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.Methemoglobinemia: The presence of methemoglobin in the blood, resulting in cyanosis. A small amount of methemoglobin is present in the blood normally, but injury or toxic agents convert a larger proportion of hemoglobin into methemoglobin, which does not function reversibly as an oxygen carrier. Methemoglobinemia may be due to a defect in the enzyme NADH methemoglobin reductase (an autosomal recessive trait) or to an abnormality in hemoglobin M (an autosomal dominant trait). (Dorland, 27th ed)Oxygen Inhalation Therapy: Inhalation of oxygen aimed at restoring toward normal any pathophysiologic alterations of gas exchange in the cardiopulmonary system, as by the use of a respirator, nasal catheter, tent, chamber, or mask. (From Dorland, 27th ed & Stedman, 25th ed)Spectroscopy, Near-Infrared: A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.Forehead: The part of the face above the eyes.Retinal Vein: Central retinal vein and its tributaries. It runs a short course within the optic nerve and then leaves and empties into the superior ophthalmic vein or cavernous sinus.Sleep Apnea Syndromes: Disorders characterized by multiple cessations of respirations during sleep that induce partial arousals and interfere with the maintenance of sleep. Sleep apnea syndromes are divided into central (see SLEEP APNEA, CENTRAL), obstructive (see SLEEP APNEA, OBSTRUCTIVE), and mixed central-obstructive types.Blood Gas Analysis: Measurement of oxygen and carbon dioxide in the blood.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Partial Pressure: The pressure that would be exerted by one component of a mixture of gases if it were present alone in a container. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Dye Dilution Technique: Method for assessing flow through a system by injection of a known quantity of dye into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed)Electron Spin Resonance Spectroscopy: A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.Conscious Sedation: A drug-induced depression of consciousness during which patients respond purposefully to verbal commands, either alone or accompanied by light tactile stimulation. No interventions are required to maintain a patent airway. (From: American Society of Anesthesiologists Practice Guidelines)Recovery Room: Hospital unit providing continuous monitoring of the patient following anesthesia.Oxygen Consumption: The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)Deep Sedation: Drug-induced depression of consciousness during which patients cannot be easily aroused but respond purposely following repeated painful stimulation. The ability to independently maintain ventilatory function may be impaired. (From: American Society of Anesthesiologists Practice Guidelines)Polysomnography: Simultaneous and continuous monitoring of several parameters during sleep to study normal and abnormal sleep. The study includes monitoring of brain waves, to assess sleep stages, and other physiological variables such as breathing, eye movements, and blood oxygen levels which exhibit a disrupted pattern with sleep disturbances.Infant, Newborn: An infant during the first month after birth.Retinal Artery: Central retinal artery and its branches. It arises from the ophthalmic artery, pierces the optic nerve and runs through its center, enters the eye through the porus opticus and branches to supply the retina.Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Respiratory Insufficiency: Failure to adequately provide oxygen to cells of the body and to remove excess carbon dioxide from them. (Stedman, 25th ed)Hypercapnia: A clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.Disposable Equipment: Apparatus, devices, or supplies intended for one-time or temporary use.PrintingPatents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Electronics: The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Hammer Toe Syndrome: A condition characterized by a series of interrelated digital symptoms and joint changes of the lesser digits and METATARSOPHALANGEAL JOINTS of the FOOT. The syndrome can include some or all of the following conditions: hammer toe, claw toe, mallet toe, overlapping fifth toe, curly toe, EXOSTOSIS; HYPEROSTOSIS; interdigital heloma, or contracted toe.Lens, Crystalline: A transparent, biconvex structure of the EYE, enclosed in a capsule and situated behind the IRIS and in front of the vitreous humor (VITREOUS BODY). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the CILIARY BODY is crucial for OCULAR ACCOMMODATION.Professional Corporations: Legally authorized corporations owned and managed by one or more professionals (medical, dental, legal) in which the income is ascribed primarily to the professional activities of the owners or stockholders.Equipment and Supplies, Hospital: Any materials used in providing care specifically in the hospital.Radio Frequency Identification Device: Machine readable patient or equipment identification device using radio frequency from 125 kHz to 5.8 Ghz.Radio Waves: Electromagnetic waves with frequencies between about 3 kilohertz (very low frequency - VLF) and 300,000 megahertz (extremely high frequency - EHF). They are used in television and radio broadcasting, land and satellite communications systems, radionavigation, radiolocation, and DIATHERMY. The highest frequency radio waves are MICROWAVES.Computer Terminals: Input/output devices designed to receive data in an environment associated with the job to be performed, and capable of transmitting entries to, and obtaining output from, the system of which it is a part. (Computer Dictionary, 4th ed.)Amplifiers, Electronic: Electronic devices that increase the magnitude of a signal's power level or current.Electromagnetic Fields: Fields representing the joint interplay of electric and magnetic forces.Facial DermatosesPulse: The rhythmical expansion and contraction of an ARTERY produced by waves of pressure caused by the ejection of BLOOD from the left ventricle of the HEART as it contracts.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Infrared Rays: That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.GermanyLight: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.MedlinePlus: NATIONAL LIBRARY OF MEDICINE service for health professionals and consumers. It links extensive information from the National Institutes of Health and other reviewed sources of information on specific diseases and conditions.

Prediction of sleep-disordered breathing by unattended overnight oximetry. (1/1017)

Between January 1994 and July 1997, 793 patients suspected of having sleep-disordered breathing had unattended overnight oximetry in their homes followed by laboratory polysomnography. From the oximetry data we extracted cumulative percentage time at SaO2 < 90% (CT90) and a saturation variability index (delta Index, the sum of the differences between successive readings divided by the number of readings - 1). CT90 was weakly correlated with polysomnographic apnea/hypopnea index (AHI). (Spearman rho = 0.36, P < 0.0001) and with delta Index (rho = 0.71, P < 0.0001). delta Index was more closely correlated with AHI (rho = 0.59, P < 0.0001). In a multivariate model, only delta Index was significantly related to AHI, the relationship being AHI = 18.8 delta Index + 7.7. The 95% CI for the coefficient were 16.2, 21.4, and for the constant were 5.8, 9.7. The sensitivity of a delta Index cut-off of 0.4 for the detection of AHI > or = 15 was 88%, for detection of AHI > or = 20 was 90% and for the detection of AHI > or = 25 was 91%. The specificity of delta Index > or = 0.4 for AHI > or = 15 was 40%. In 113 further patients, oximetry was performed simultaneously with laboratory polysomnography. Under these circumstances delta Index was more closely correlated with AHI (rho = 0.74, P < 0.0001), as was CT90 (rho = 0.58, P < 0.0001). Sensitivity of delta Index > or = 0.4 for detection of AHI > or = 15 was not improved at 88%, but specificity was better at 70%. We concluded that oximetry using a saturation variability index is sensitive but nonspecific for the detection of obstructive sleep apnea, and that few false negative but a significant proportion of false positive results arise from night-to-night variability.  (+info)

Noninvasive measurement of anatomic structure and intraluminal oxygenation in the gastrointestinal tract of living mice with spatial and spectral EPR imaging. (2/1017)

EPR imaging has emerged as an important tool for noninvasive three-dimensional (3D) spatial mapping of free radicals in biological tissues. Spectral-spatial EPR imaging enables mapping of the spectral information at each spatial position, and, from the observed line width, the localized tissue oxygenation can be mapped. We report the development of EPR imaging instrumentation enabling 3D spatial and spectral-spatial EPR imaging of small animals. This instrumentation, along with the use of a biocompatible charcoal oximetry-probe suspension, enabled 3D spatial imaging of the gastrointestinal (GI) tract, along with mapping of oxygenation in living mice. By using these techniques, the oxygen tension was mapped at different levels of the GI tract from the stomach to the rectum. The results clearly show the presence of a marked oxygen gradient from the proximal to the distal GI tract, which decreases after respiratory arrest. This technique for in vivo mapping of oxygenation is a promising method, enabling the noninvasive imaging of oxygen within the normal GI tract. This method should be useful in determining the alterations in oxygenation associated with disease.  (+info)

Systolic blood pressure in babies of less than 32 weeks gestation in the first year of life. Northern Neonatal Nursing Initiative. (3/1017)

AIM: To define the normal range of systolic blood pressure in a non-selective population based sample of babies of low gestation throughout early infancy. METHODS: Daily measurements of systolic blood pressure were made in all the babies of less than 32 weeks gestation born in the North of England in 1990 and 1991 during the first 10 days of life. Additional measurements were obtained from 135 of these babies throughout the first year of life. Systolic pressure was measured by sensing arterial flow with a Doppler ultrasound probe. It was assumed that blood pressure had never been pathologically abnormal in the neonatal period if the child was alive and free from severe disability two years later. Data of adequate quality were available from 398 such children. Additional data wer collected, for comparative purposes, from 123 babies of 32, 36, or 40 weeks of gestation. RESULTS: Systolic pressure correlated with weight and gestation at birth, and rose progressively during the first 10 days of life. The coefficient of variation did not vary with gestational or postnatal age (mean value 17%), the relation with gestation being closer than with birthweight. Systolic pressure rose 20% during the first 10 days from an initial mean of 42 mm Hg in babies of 24 weeks gestation, and by 42% from an initial mean of 48 mm Hg in babies of 31 weeks gestation. These findings were not altered by the exclusion of data from 14 babies who had inotropic support during this time. Simultaneous measurements in three centres using an oscillometric technique revealed that this technique tended to overestimate systolic pressure when this was below average. Systolic pressure finally stabilised at a mean of 92 (95% CI 72-112) mm Hg at a postconceptional age of 44-48 weeks irrespective of gestation at birth. CONCLUSION: Systolic blood pressure 4-24 hours after birth was less than gestational age (in weeks) in only 3% of non-disabled long term survivors. Systolic pressure rose with increasing gestation and increasing postnatal age, but stabilised some six weeks after term, regardless of gestation at birth.  (+info)

Nocturnal hypoxaemia and respiratory function after endovascular and conventional abdominal aortic aneurysm repair. (4/1017)

Respiratory function, assessed by pre- and postoperative spirometry, and overnight pulse oximetry recordings, was compared prospectively in patients undergoing infrarenal abdominal aortic aneurysm repair by endovascular or conventional surgery. Episodic hypoxaemia was common in both groups before operation and up to the fifth night after operation. The frequency and severity of hypoxaemia were greater in the conventional group (P < 0.05). FEV1 and FVC decreased significantly on the third and fifth days after operation in both groups (P < 0.05); decreases in FVC were greater in patients undergoing conventional surgery. On the fifth day after operation, FVC had recovered to 86% and 64% of preoperative values in the endovascular and conventional groups, respectively (P < 0.05). Duration of surgery was greater (P < 0.05) and duration of postoperative artificial ventilation significantly less (P < 0.05) after endovascular repair. Postoperative PCA morphine consumption and duration of use were significantly greater (P < 0.05) in patients undergoing conventional abdominal aortic aneurysm surgery.  (+info)

Pulse oximetry plethysmographic waveform during changes in blood volume. (5/1017)

Systolic pressure variation (SPV) and its dDown component have been shown to be sensitive factors in estimating intravascular volume in patients undergoing mechanical ventilation. In this study, ventilation-induced changes in pulse oximeter plethysmographic waveform were evaluated after removal and after reinfusion of 10% estimated blood volume. The plethysmographic waveform variation (SPVplet) was measured as the difference between maximal and minimal peaks of waveform during the ventilatory cycle, and expressed as a percentage of the signal amplitude during apnoea. dUp(plet) and dDown(plet) were measured as the distance between the apnoeic plateau and the maximal or minimal plethysmographic systolic waveform, respectively. Intravascular volume was changed by removal of 10% of estimated blood volume and followed by equal volume replacement with Haemaccel. A 10% decrease in blood volume increased SPVplet from mean 17.0 (SD 11.8)% to 31.6 (28.0)% (P = 0.005) and dDown(plet) from 8.7 (5.1)% to 20.5 (12.9)% (P = 0.0005) compared with baseline. Changes in plethysmographic waveform correlated with changes in arterial SPV and dDown (r = 0.85; P = 0.0009). In the absence of invasive arterial pressure monitoring, ventilation-induced waveform variability of the plethysmographic signal measured from pulse oximetry is a useful tool in the detection of mild hypovolaemia.  (+info)

Ambulatory nocturnal oximetry and sleep questionnaire-based findings in 38 patients with end-stage renal disease. (6/1017)

BACKGROUND: Patients with end-stage renal diseases (ESRD) have an increased risk of sleep-disordered breathing. With regard to this disorder, controversy persists about prevalence, cost-effective assessment and socio-economical relevance. METHODS: Therefore, we performed, for the first time, overnight ambulatory oximetry in combination with a sleep questionnaire in 38 unselected patients with ESRD and 37 healthy controls. An oxygen desaturation index (ODI) >15, defined as >15 falls in oxygen saturation of > or =4% per h, was observed more frequently in ESRD patients than in healthy controls (47 vs. 3%, P<0.001). RESULTS: In general, the results derived from the assessment of the Epworth Sleepiness Scale (ESS) as well as those from the visual analogue scale (VAS) did not reflect the ODI values of the respective patient population. Interestingly, 88% of ESRD patients with the questionnaire finding 'excessively loud snoring' had an ODI of >15 as compared with 13% without this complaint (P<0.05). Furthermore, 77% of ESRD patients with a systolic blood pressure >140 mm Hg and a body mass index (BMI) >25, had an ODI of >15. The percentage of ESRD patients with a professional activity was higher in the absence of sleep-disordered breathing (63 vs. 21%, P<0.05). CONCLUSION: 'Excessively loud snoring' and a BMI >25 combined with hypertension are risk factors for sleep-disordered breathing in ESRD patients. Nocturnal oxygen desaturations are assessed efficiently by ambulatory oximetry and correlate with relevant biological and socio-economical parameters in ESRD patients.  (+info)

Microcirculatory investigations to determine the effect of spinal cord stimulation for critical leg ischemia: the Dutch multicenter randomized controlled trial. (7/1017)

PURPOSE: Patients with non-reconstructable critical limb ischemia generally undergo medical treatment only to prevent or postpone amputation. There is some evidence that spinal cord stimulation (SCS) stimulates ischemic wound healing. Thus, this could benefit limb survival through improved skin perfusion. We investigated the effect of SCS versus conservative treatment on skin microcirculation in relation to treatment outcome in patients with non-reconstructable critical limb ischemia. METHODS: Standard medical treatment plus SCS was compared with only standard medical treatment in a multicenter randomized controlled trial comprised of 120 patients with surgically non-reconstructable chronic rest pain or ulceration. We investigated skin microcirculation by means of capillary microscopy, laser Doppler perfusion, and transcutaneous oxygen measurements in the foot. The microcirculatory status just before treatment was classified in three categories (poor, intermediate, and good) and was related to limb survival after a minimum follow-up period of 18 months. RESULTS: Clinical parameters, peripheral blood pressures, and limb survival rates showed no significant differences between the SCS and standard groups during the follow-up period. In both treatment groups, amputation frequency after 18 months was high in patients with an initially poor microcirculatory skin perfusion (SCS 80% vs standard treatment 71%; NS) and low in those with a good skin perfusion (29% vs 11 %, respectively; NS). In patients with an intermediate skin microcirculation amputation, frequency was twice as low in patients additionally treated with SCS as in the standard treatment group (48% vs 24%; P =.08). In these patients, microcirculatory reactive hyperemia during the follow-up period reduced in the standard group but not in the SCS group (P <.01). CONCLUSION: Selection on the basis of the initial microcirculatory skin perfusion identifies patients in whom SCS can improve local skin perfusion and limb survival.  (+info)

Clinical value and cost of a respiratory sleep-related breathing disorders screening service for snorers referred to a District General Hospital ENT department. (8/1017)

Sleep-related breathing disorders and snoring often co-exist in the community. We hypothesized that a significant proportion of patients referred from primary care to ENT surgeons for management of snoring might have significant sleep-related breathing disorders requiring medical management. The Respiratory Medicine Department at Whipps Cross Hospital, London, U.K. screened all such referrals using sleep questionnaires, overnight oximetry and diagnostic sleep studies where necessary as recommended by the Royal College of Physicians of London. Over 38 months, 115 patients were screened, of whom 43 (38%) had clinically significant sleep-disordered breathing. One-third were established on nasal continuous positive airway pressure ventilation and the remainder were mainly offered conservative treatment. The cost of the screening service is estimated at 14,000 Pounds for the initial year. The savings to the ENT service and the possible long-term benefits to the patients identified as having sleep-disordered breathing balance this. We conclude that screening all referred snorers for sleep-disordered breathing using a simple protocol identifies a significant number requiring medical management at a relatively low cost to the service provider.  (+info)

  • Radius PPG provides industry-leading Masimo SET ® pulse oximetry without a cabled connection to a monitor, allowing patients to move wirelessly and comfortably while still being continuously and reliably monitored. (masimo.ca)
  • February 14, 2008 - Masimo yesterday said the University of California at San Francisco Medical Center completed its system-wide implementation of Masimo SET pulse oximetry and the Masimo Rainbow SET technology platform, making it the first hospital to implement Rainbow SET capabilities system-wide. (itnonline.com)
  • Last year, the U.S. Health and Human Services Secretary's Advisory Committee on Heritable Disorders in Newborns and Children recommended pulse oximetry screening for newborns. (medpagetoday.com)
  • GOTHENBURG, Sweden, Jan. 9 -- Screening newborns for congenital heart disease using pulse oximetry has high predictive value and a low false-positive rate, a large, prospective study found. (medpagetoday.com)
  • To explore the method's usefulness, the researchers initially screened 39,821 newborns (median age 38 hours) at five hospitals in the West Götaland region of Sweden using pulse oximetry testing in the right hand and either foot. (medpagetoday.com)
  • In regions not using pulse oximetry, 28% of newborns with undiagnosed duct dependent circulation were discharged from the hospital compared with 8% in hospitals that performed the screening (RR 3.36, 95% CI 1.37 to 8.24, P =0.0025). (medpagetoday.com)
  • Since then, pulse oximetry manufacturers have developed new algorithms to reduce some false alarms during motion such as extending averaging times or freezing values on the screen, but they do not claim to measure changing conditions during motion and low perfusion. (wikipedia.org)
  • The cost of a pulse oximetry exam is estimated to be between $5 and $10, comparable to a newborn hearing screening, the group reported. (medpagetoday.com)
  • Explain to interested patients that this study found that universal newborn screening with pulse oximetry was at least as cost-effective as physical examination for detecting duct dependent circulation. (medpagetoday.com)
  • Adding pulse oximetry screening to a pre-discharge physical examination increased the sensitivity of detecting duct dependent circulation from 62.5% to 82.8%, Ingegerd Ostman-Smith, M.D., of Queen Silvia Children's Hospital and the University of Gothenburg, and colleagues reported online in BMJ . (medpagetoday.com)
  • A cost-benefit analysis indicated that adding universal screening with pulse oximetry to a physical examination would be, at worst, cost neutral, given the costs that accrue when undiagnosed babies return to the hospital in circulatory collapse and the potential reductions in long-term neurological morbidity. (medpagetoday.com)
  • Universal pulse oximetry screening of all newborn infants seems to be a low-risk, low-cost strategy for improving the detection of critical congenital heart disease," Keith Barrington, M.B.Ch.B., of Sainte Justine Hospital and the University of Montreal, wrote in an accompanying editorial. (medpagetoday.com)
  • Pulse oximetry screening has been proposed as a method for improving detection of this congenital heart defect, but its use had not been evaluated in a large, prospective study. (medpagetoday.com)
  • Dr. Barrington, the editorialist, noted that the false-positive rate of pulse oximetry would likely be higher than that found in the current study if universal screening were introduced into practice, especially during the introductory phase. (medpagetoday.com)
  • Locate a journal article published in the United states discussing pulse oximetry screening for congenital heart disease in the newborn. (qualifiedwriters.com)
  • Select one (1) of the six QSEN competencies and discuss how this competency can be used to make pulse oximetry screening in the newborn a reality to improve patient outcomes. (qualifiedwriters.com)
  • Covidien and Phillips tout another iteration of the Nellcor SpO2 pulse oximetry product for use with the Philips IntelliVue patient monitoring platform. (mdtmag.com)
  • Mansfield, Mass.-based Covidien said it will provide its Nellcor SpO2 pulse oximetry technology for use with the Philips IntelliVue patient monitoring platform in North America, Europe and elsewhere. (mdtmag.com)
  • The researchers then compared rates of detection of duct dependent circulation in the West Götaland region with those in the rest of the country that did not use pulse oximetry. (medpagetoday.com)
  • SPO Medical Inc., a New York, NY based company, has unveiled at the Medica 2007 in Düsseldorf its new line of pulse oximeters for the European market, including the PulseOx 6000™ and PulseOx 6100™, both based on the company's reflectance pulse oximetry technology. (medgadget.com)
  • Your physician may also recommend pulse oximetry if you use a ventilator to support breathing, suffer from sleep apnea or have a serious medical condition, such as heart attack, congestive heart failure, chronic obstructive pulmonary disease (COPD), anemia, lung cancer, asthma, or pneumonia. (wikihow.com)
  • SenSmart is the world's first dedicated oximeter system that provides measurements of both regional oximetry (rSO2) and pulse oximetry (SpO2). (prnewswire.com)
  • Regional oximetry-monitored procedures typically allow for early indication of oxygen desaturation that could lead to stroke, neurocognitive decline and other neurological or major organ injuries resulting from inadequate oxygen saturation. (prnewswire.com)
  • Regional oximetry solutions have been shown to reduce the cost of post-operative care and improve patient outcomes. (prnewswire.com)
  • Masimo announced three additional indices (delta cHb, delta HHb and delta O2Hb) for O3 Regional Oximetry in September 2019. (zacks.com)
  • IRVINE, Calif.--( BUSINESS WIRE )-- Masimo (NASDAQ: MASI) today announced that O3 ® Regional Oximetry has received FDA clearance for expanded use in monitoring somatic tissue oxygenation saturation in all patient populations and monitoring relative changes in hemoglobin, oxyhemoglobin, and deoxyhemoglobin in adult brains. (businesswire.com)
  • O3 Regional Oximetry provides regional or tissue hemoglobin oxygen saturation with a trending specification of 3% A RMS * (cerebral and somatic, all ages) and absolute accuracy specifications of 4% A RMS (cerebral, adults) and 5% A RMS (cerebral, pediatric patients) through the use of O3 multi-wavelength sensors and O3 Regional Oximetry near-infrared spectroscopy (NIRS) technology. (businesswire.com)
  • Dr. Aamer Ahmed, FRA FESC FACC, Consultant Cardiovascular Anesthesiologist at University Hospitals of Leicester, UK, said, "When using regional oximetry to monitor the brain, rSO 2 helps track the oxygenation state of the brain, but understanding the dynamic variations in rSO 2 is even more valuable. (businesswire.com)
  • Noting that OSA "can only be reliably diagnosed using multichannel sleep studies, which are expensive, demanding for families and only available in specialist centres," Dr. Hill and colleagues at the University of Southampton and Southampton Children's Hospital sought to determine whether home pulse oximetry monitoring could identify children at high risk of OSA, and in particular which parameters could most sensitively detect this risk, as an initial screening step. (biospace.com)
  • We aimed to determine whether home pulse oximetry (HPO) discriminates children at high risk of OSA, who need further diagnostic multichannel sleep studies. (bmj.com)
  • Masimo, the inventor of Masimo Rainbow Pulse CO-Oximetry, Masimo Rainbow Acoustic Monitoring, and Masimo SET Measure-Through Motion and Low Perfusion pulse oximetry, today announced it has acquired substantially all of the assets of Spire Semiconductor, LLC, maker of advanced light emitting diode and other advanced component-level technologies. (news-medical.net)
  • With the receipt of the FDA clearance, the company aims to strengthen its core business of Measure-through Motion and Low Perfusion pulse oximetry monitoring, commonly known as Masimo SET (Signal Extraction Technology) pulse oximetry. (zacks.com)
  • The home monitoring was conducted using Masimo SET ® Measure-through Motion and Low Perfusion™ pulse oximetry. (biospace.com)
  • In 1995, the company debuted Masimo SET ® Measure-through Motion and Low Perfusion™ pulse oximetry, which has been shown in multiple studies to significantly reduce false alarms and accurately monitor for true alarms. (biospace.com)
  • And while many leading hospitals have already integrated Masimo SET ® pulse oximetry technology, 2 more are converting every day. (masimo.com)
  • To date, more than 100 studies have shown that Masimo SET ® outperforms other pulse oximetry technologies, providing clinicians with unmatched sensitivity and specificity to make critical patient care decisions. (masimo.com)
  • Thereafter, skeptical clinicians around the world sought to compare Masimo SET ® to the best pulse oximetry technologies other companies had to offer. (masimo.com)
  • ANCHOR=View Abstract],[LINK=/content/covidien/websites/medtronic/com/en/covidien/support/clinical-evidence.html?id= , ([FOOTNOTE=Janelle GM, et al. (medtronic.com)
  • ANCHOR=View Abstract],[LINK=/content/covidien/websites/medtronic/com/en/covidien/support/clinical-evidence.html?id= , ([FOOTNOTE=Prabhune A, Sehic A, Spence PA, Church T, Edmonds HL Jr. Cerebral oximetry provides early warning of oxygen delivery failure during cardiopulmonary bypass. (medtronic.com)
  • Other reports on this use of finger pulse oximetry and pulse transduction have been published, and there is a potentially important distinction between the two methods. (annals.org)
  • This guideline is intended to assist clinicians with the performance, reporting and interpretation of paediatric overnight pulse oximetry studies. (starship.org.nz)
  • ATLANTA - Brightree has entered into an agreement to develop ordering and processing capabilities for overnight pulse oximetry and home sleep apnea testing with Advanced Diagnostic Solutions, Inc. (ADSI). (hmenews.com)
  • During the fourth quarter of 2013, the company shipped approximately 42,000 SETA pulse oximetry and rainbowA Pulse CO-Oximetry units, excluding handheld units, approximately level with the same prior-year period. (thefreedictionary.com)
  • The TriOx exclusive three wavelength oximetry technology with digital filtration provides greater accuracy than two wavelength systems. (icumed.com)
  • Three wavelength oximetry and Lambert Beer formula was used to analyse the oximetry data.Oximetry maps were generated for each subject, both at the macula and optic nerve. (arvojournals.org)
  • In particular, microdialysis allows the analysis of extracellular neurotransmitters and metabolites, and jugular venous oximetry and near-infrared spectroscopy are beginning to provide valuable information on cerebral oxygen metabolism. (foyles.co.uk)
  • La espectroscopia cercana al infrarrojo o near infrared spectroscopy (NIRS) permite una medición continua no invasiva de la oxigenación tisular, reflejando el estado de la perfusión tisular en tiempo real. (elsevier.es)
  • The use of recording continuous oximetry overnight is a more recent application of this technology. (starship.org.nz)
  • We present this case of blood oozing from the oximetry connection port of the pulmonary artery catheter that resulted in the inability to monitor continuous cardiac output requiring replacement of the catheter. (scielo.br)
  • Early clinical evaluation of the Edwards PediaSat™ oximetry catheter in pediatric patients. (edwards.com)
  • Pediatric Sleep Questionnaire (PSQ), physical exam (PE), and pulse-oximetry data were collected and correlated with the results of the nightly polygraph at home. (hindawi.com)
  • This study compares intraocular retinal oximetry in glaucomatous eyes displaying asymmetrically affected hemifields across different subgroups of glaucoma, namely primary angle closure glaucoma (PACG), primary open-angle glaucoma (POAG), and normal tension glaucoma (NTG). (ovid.com)
  • In our study, localized visual field losses were not associated with changes in retinal oximetry but were associated with narrower retinal arteriolar diameters in PACG and NTG. (ovid.com)
  • Minimizing the influence of fundus pigmentation on retinal vessel oximetry. (spiedigitallibrary.org)
  • To study in-vivo retinal oximetry using snap shot hyperspectral retinal imaging using computerized tomographic spectrometry ( CTIS) in healthy subjects and patients with retinal vascular disease. (arvojournals.org)
  • Snap-shot hyperspectral retinal oximetry has the potential to provide in vivo functional maps of the retina and retinal vasculature. (arvojournals.org)
  • Functional SaO2 as measured by Reference CO-Oximetry will be used as the basis for comparison. (clinicaltrials.gov)
  • 2 mmol/L, and (2) those with co-oximetry measured saturations (SaO2) (ovid.com)
  • Pulse oximetry may be performed to assess the adequacy of oxygen levels (or oxygen saturation) in the blood in a variety of circumstances such as surgery, other procedures involving sedation (for example, bronchoscopy), adjustment of supplemental oxygen as needed, effectiveness of lung medications, and patient tolerance to increased activity levels. (nyhq.org)
  • EDITOR,--We agree with C D Hanning and J M Alexander-Williams that pulse oximetry has a place in the management of hypoxic patients with respiratory failure and that hypercarbia is less damaging physiologically than hypoxaemia. (bmj.com)
  • Pulse oximetry was of particular value in the neonatal unit where the patients do not thrive with inadequate oxygenation, but too much oxygen and fluctuations in oxygen concentration can lead to vision impairment or blindness from retinopathy of prematurity (ROP). (wikipedia.org)
  • Hypoventilation can be detected reliably by pulse oximetry only when patients breathe room air. (nih.gov)
  • Patients were monitored by oximetry butrecordings were given to physicians only after they completed their initialassessment. (pubmedcentralcanada.ca)
  • The false-negative screen patients had lesions not amenable to detection by oximetry. (aappublications.org)
  • A study published in journal Chest has shown that novel intra-sleep pulse oxymetry can be an effective modality in identifying cardiovascular disease risk in patients. (medgadget.com)
  • Patients who underwent treatment had repeat oximetry imaging on their follow up visits. (arvojournals.org)
  • Patients with longstanding vascular occlusions showed patterns of oximetry distribution, which varied depending on the pattern of collateral formation. (arvojournals.org)
  • Our study aim was to fix whether there is a correlation of results between two simple and non‐invasive procedures such as transthoracic contrast‐enhanced ultrasound (CEUS) and pulse oximetry, used for early detection of HPS in patients with liver cirrhosis, having as endpoint the improvement in their outcome. (intechopen.com)
  • 70 mmHg were found in 123 patients (33%) during pulse oximetry investigation. (intechopen.com)
  • Significant improvements have been made in the ability of pulse oximetry devices to measure oxygen saturation levels in patients that were flailing or in motion. (medica-tradefair.com)
  • In pulse oximetry, the signals measured at different wavelengths represent the mixture signals, while the plethysmographic signal, motion artifact, respiratory artifact and instrumental noise represent the source components. (google.com)
  • Intermittent pulse oximetry was effective for children hospitalized with asthma or bronchiolitis who were stable on room air but did not decrease the time until the child was medically ready for discharge, according to a new report from a quality improvement effort. (medscape.com)
  • Cite this: Intermittent Pulse Oximetry OK for Kids Receiving Room Air - Medscape - Mar 10, 2015. (medscape.com)