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Georgiev YH, Neunhoeffer F, Hofbeck M, Michel J. Assessment of accuracy of two pulse oximeters in infants with cyanotic and acyanotic congenital heart diseases. Paediatr Anaesth 2024. [PMID: 39365291 DOI: 10.1111/pan.15017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 09/09/2024] [Accepted: 09/23/2024] [Indexed: 10/05/2024]
Abstract
BACKGROUND Peripherally measured oxygen saturation (SpO2) may often differ from arterial oxygen saturation (SaO2), measured by co-oximetry, especially within the lower range of oxygen saturations. This can potentially impact clinical decisions and therapy in children with congenital heart disease, as critical hypoxemia might remain unnoticed. AIMS Our aim was to investigate the accuracy of two different pulse oximeters compared to SaO2 in infants with congenital heart diseases. METHODS Simultaneous recordings of SpO2, measured by two different pulse oximeters (Philips IntelliVue X3 Monitor and Nellcor™ OxiMax™), were compared to SaO2 obtained by arterial blood gas analysis. RESULTS A total of 153 measurements were performed in 44 infants with arterial oxygen saturation between 70 and 100%. We divided the measurements into 3 subgroups: group 1-SaO2 70.0%-85.0%, group 2-SaO2 85.1%-94.0%, group 3-SaO2 >94.1%. For Philipps, the median bias was 5.3 (IQR: 2.6-8.7) %, 2.3 (IQR: 0.9-6.0) % and 1.1 (IQR: -0.8-2.4) % in group 1, 2 and 3, respectively. For OxiMax™, the median bias was 2.7 (IQR: 0.5-5.1) %, 0.2 (IQR: -0.9-2.6) % and -0.5 (IQR: -1.3-0.6) % in group 1, 2 and 3, respectively. Regarding the accuracy of these oximeters, as evaluated with the Accuracy root mean squared index (Arms), it was 9.8 versus 4.5% in group 1, 4.5 versus 2.9% in group 2 and 2.4 versus 1.9% in group 3 for Philipps and OxiMax™, respectively. CONCLUSIONS In lower range saturations between 70% and 85% the accuracy of both pulse oximeters exceeded the threshold of ≤3% recommended by the Food and Drug Administration (FDA). Therefore, peripheral pulse oximetry within the lower range of oxygen saturations should be interpreted with caution in infants with congenital heart diseases, taking into consideration its limitations. Direct co-oximetry should be the preferred method to support clinical decisions in children with cyanotic congenital heart diseases.
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Affiliation(s)
- Yordan Hristov Georgiev
- Department of Pediatric Cardiology, Pulmonology and Pediatric Intensive Care Medicine, University Children's Hospital Tübingen, Tübingen, Germany
| | - Felix Neunhoeffer
- Department of Pediatric Cardiology, Pulmonology and Pediatric Intensive Care Medicine, University Children's Hospital Tübingen, Tübingen, Germany
| | - Michael Hofbeck
- Department of Pediatric Cardiology, Pulmonology and Pediatric Intensive Care Medicine, University Children's Hospital Tübingen, Tübingen, Germany
| | - Jörg Michel
- Department of Pediatric Cardiology, Pulmonology and Pediatric Intensive Care Medicine, University Children's Hospital Tübingen, Tübingen, Germany
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2
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Al-Beltagi M, Saeed NK, Bediwy AS, Elbeltagi R. Pulse oximetry in pediatric care: Balancing advantages and limitations. World J Clin Pediatr 2024; 13:96950. [PMID: 39350904 PMCID: PMC11438930 DOI: 10.5409/wjcp.v13.i3.96950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 07/06/2024] [Accepted: 07/30/2024] [Indexed: 08/30/2024] Open
Abstract
BACKGROUND Pulse oximetry has become a cornerstone technology in healthcare, providing non-invasive monitoring of oxygen saturation levels and pulse rate. Despite its widespread use, the technology has inherent limitations and challenges that must be addressed to ensure accurate and reliable patient care. AIM To comprehensively evaluate the advantages, limitations, and challenges of pulse oximetry in clinical practice, as well as to propose recommendations for optimizing its use. METHODS A systematic literature review was conducted to identify studies related to pulse oximetry and its applications in various clinical settings. Relevant articles were selected based on predefined inclusion and exclusion criteria, and data were synthesized to provide a comprehensive overview of the topic. RESULTS Pulse oximetry offers numerous advantages, including non-invasiveness, real-time feedback, portability, and cost-effectiveness. However, several limitations and challenges were identified, including motion artifacts, poor peripheral perfusion, ambient light interference, and patient-specific factors such as skin pigmentation and hemoglobin variants. Recommendations for optimizing pulse oximetry use include technological advancements, education and training initiatives, quality assurance protocols, and interdisciplinary collaboration. CONCLUSION Pulse oximetry is crucial in modern healthcare, offering invaluable insights into patients' oxygenation status. Despite its limitations, pulse oximetry remains an indispensable tool for monitoring patients in diverse clinical settings. By implementing the recommendations outlined in this review, healthcare providers can enhance the effectiveness, accessibility, and safety of pulse oximetry monitoring, ultimately improving patient outcomes and quality of care.
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Affiliation(s)
- Mohammed Al-Beltagi
- Department of Pediatric, Faculty of Medicine, Tanta University, Tanta 31511, Alghrabia, Egypt
- Department of Pediatrics, University Medical Center, King Abdulla Medical City, Arabian Gulf University, Manama 26671, Manama, Bahrain
| | - Nermin Kamal Saeed
- Medical Microbiology Section, Department of Pathology, Salmaniya Medical Complex, Ministry of Health, Kingdom of Bahrain, Manama 26671, Manama, Bahrain
- Medical Microbiology Section, Department of Pathology, Irish Royal College of Surgeon in Bahrain, Busaiteen 15503, Muharraq, Bahrain
| | - Adel Salah Bediwy
- Department of Pulmonology, Faculty of Medicine, Tanta University, Tanta 31527, Alghrabia, Egypt
- Department of Pulmonology, University Medical Center, King Abdulla Medical City, Arabian Gulf University, Manama 26671, Manama, Bahrain
| | - Reem Elbeltagi
- Department of Medicine, The Royal College of Surgeons in Ireland-Bahrain, Busiateen 15503, Muharraq, Bahrain
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Nguyen T, Park S, Park J, Sodager A, George T, Gandjbakhche A. Application of the Single Source-Detector Separation Algorithm in Wearable Neuroimaging Devices: A Step toward Miniaturized Biosensor for Hypoxia Detection. Bioengineering (Basel) 2024; 11:385. [PMID: 38671806 PMCID: PMC11048477 DOI: 10.3390/bioengineering11040385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024] Open
Abstract
Most currently available wearable devices to noninvasively detect hypoxia use the spatially resolved spectroscopy (SRS) method to calculate cerebral tissue oxygen saturation (StO2). This study applies the single source-detector separation (SSDS) algorithm to calculate StO2. Near-infrared spectroscopy (NIRS) data were collected from 26 healthy adult volunteers during a breath-holding task using a wearable NIRS device, which included two source-detector separations (SDSs). These data were used to derive oxyhemoglobin (HbO) change and StO2. In the group analysis, both HbO change and StO2 exhibited significant change during a breath-holding task. Specifically, they initially decreased to minimums at around 10 s and then steadily increased to maximums, which were significantly greater than baseline levels, at 25-30 s (p-HbO < 0.001 and p-StO2 < 0.05). However, at an individual level, the SRS method failed to detect changes in cerebral StO2 in response to a short breath-holding task. Furthermore, the SSDS algorithm is more robust than the SRS method in quantifying change in cerebral StO2 in response to a breath-holding task. In conclusion, these findings have demonstrated the potential use of the SSDS algorithm in developing a miniaturized wearable biosensor to monitor cerebral StO2 and detect cerebral hypoxia.
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Affiliation(s)
| | | | | | | | | | - Amir Gandjbakhche
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 49 Convent Drive, Bethesda, MD 20892-4480, USA; (T.N.); (S.P.); (J.P.); (A.S.); (T.G.)
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4
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Banerjee A, Bhattacharyya N, Ghosh R, Singh S, Adhikari A, Mondal S, Roy L, Bajaj A, Ghosh N, Bhushan A, Goswami M, Ahmed ASA, Moussa Z, Mondal P, Mukhopadhyay S, Bhattacharyya D, Chattopadhyay A, Ahmed SA, Mallick AK, Pal SK. Non-invasive estimation of hemoglobin, bilirubin and oxygen saturation of neonates simultaneously using whole optical spectrum analysis at point of care. Sci Rep 2023; 13:2370. [PMID: 36759533 PMCID: PMC9911772 DOI: 10.1038/s41598-023-29041-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/30/2023] [Indexed: 02/11/2023] Open
Abstract
The study was aimed to evaluate the performance of a newly developed spectroscopy-based non-invasive and noncontact device (SAMIRA) for the simultaneous measurement of hemoglobin, bilirubin and oxygen saturation as an alternative to the invasive biochemical method of blood sampling. The accuracy of the device was assessed in 4318 neonates having incidences of either anemia, jaundice, or hypoxia. Transcutaneous bilirubin, hemoglobin and blood saturation values were obtained by the newly developed instrument which was corroborated with the biochemical blood tests by expert clinicians. The instrument is trained using Artificial Neural Network Analysis to increase the acceptability of the data. The artificial intelligence incorporated within the instrument determines the disease condition of the neonate. The Pearson's correlation coefficient, r was found to be 0.987 for hemoglobin estimation and 0.988 for bilirubin and blood gas saturation respectively. The bias and the limits of agreement for the measurement of all the three parameters were within the clinically acceptance limit.
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Affiliation(s)
- Amrita Banerjee
- Department of Physics, Jadavpur University, 188, Raja S.C. Mallick Rd, Kolkata, 700032, India.,Technical Research Centre, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, West Bengal, 700106, India.,Department of Paediatric Medicine, Nil RatanSircar Medical College & Hospital, 138, AJC Bose Road, Sealdah, Raja Bazar, Kolkata, 700014, India
| | - Neha Bhattacharyya
- Department of Radio Physics and Electronics, University of Calcutta, 92, Acharya Prafulla Chandra Rd, Machuabazar, Kolkata, 700009, India.,Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India
| | - Ria Ghosh
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India
| | - Soumendra Singh
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India.,Neo Care Inc, 27, Parker St, Dartmouth, NS, B2Y 2W1, Canada.,Electrical and Computer Engineering Department, Dalhousie University, 6299 South St, Halifax, NS B3H 4R2, Halifax, Canada
| | - Aniruddha Adhikari
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India.,Chemical and Biomolecular Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Susmita Mondal
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India
| | - Lopamudra Roy
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, West Bengal, 700106, India.,Department of Applied Optics and Photonics, JD-2, Sector-III, Salt Lake, Kolkata, West Bengal, 700 106, India
| | - Annie Bajaj
- Department of Paediatric Medicine, Nil RatanSircar Medical College & Hospital, 138, AJC Bose Road, Sealdah, Raja Bazar, Kolkata, 700014, India
| | - Nilanjana Ghosh
- Department of Paediatric Medicine, Nil RatanSircar Medical College & Hospital, 138, AJC Bose Road, Sealdah, Raja Bazar, Kolkata, 700014, India
| | - Aman Bhushan
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Bhadson Road, Patiala, Punjab, 147004, India
| | - Mahasweta Goswami
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, West Bengal, 700106, India
| | - Ahmed S A Ahmed
- Faculty of Medicine, Assiut University, Assiut, 71516, Egypt
| | - Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, P.O. Box 15551, Abu Dhabi, United Arab Emirates
| | - Pulak Mondal
- Department of Radio Physics and Electronics, University of Calcutta, 92, Acharya Prafulla Chandra Rd, Machuabazar, Kolkata, 700009, India
| | - Subhadipta Mukhopadhyay
- Department of Physics, Jadavpur University, 188, Raja S.C. Mallick Rd, Kolkata, 700032, India
| | - Debasis Bhattacharyya
- Department of Gynecology & Obstetrics, Nil Ratan Sircar Medical College & Hospital, 138, AJC Bose Road, Sealdah, Raja Bazar, Kolkata, 700014, India
| | - Arpita Chattopadhyay
- Department of Basic Science and Humanities, Techno International, Kolkata, 700156, India.,Department of Physics, Sister Nivedita University, Kolkata, India
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, 21955, Saudi Arabia.
| | - Asim Kumar Mallick
- Department of Paediatric Medicine, Nil RatanSircar Medical College & Hospital, 138, AJC Bose Road, Sealdah, Raja Bazar, Kolkata, 700014, India.
| | - Samir Kumar Pal
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India.
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Elron E, Bromiker R, Gleisner O, Yosef-Hai O, Goldberg O, Nitzan I, Nitzan M. Overestimation of Oxygen Saturation Measured by Pulse Oximetry in Hypoxemia. Part 1: Effect of Optical Pathlengths-Ratio Increase. SENSORS (BASEL, SWITZERLAND) 2023; 23:1434. [PMID: 36772474 PMCID: PMC9921559 DOI: 10.3390/s23031434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/06/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
On average, arterial oxygen saturation measured by pulse oximetry (SpO2) is higher in hypoxemia than the true oxygen saturation measured invasively (SaO2), thereby increasing the risk of occult hypoxemia. In the current article, measurements of SpO2 on 17 cyanotic newborns were performed by means of a Nellcor pulse oximeter (POx), based on light with two wavelengths in the red and infrared regions (660 and 900 nm), and by means of a novel POx, based on two wavelengths in the infrared region (761 and 820 nm). The SpO2 readings from the two POxs showed higher values than the invasive SaO2 readings, and the disparity increased with decreasing SaO2. SpO2 measured using the two infrared wavelengths showed better correlation with SaO2 than SpO2 measured using the red and infrared wavelengths. After appropriate calibration, the standard deviation of the individual SpO2-SaO2 differences for the two-infrared POx was smaller (3.6%) than that for the red and infrared POx (6.5%, p < 0.05). The overestimation of SpO2 readings in hypoxemia was explained by the increase in hypoxemia of the optical pathlengths-ratio between the two wavelengths. The two-infrared POx can reduce the overestimation of SpO2 measurement in hypoxemia and the consequent risk of occult hypoxemia, owing to its smaller increase in pathlengths-ratio in hypoxemia.
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Affiliation(s)
- Eyal Elron
- Neonatal Intensive Care Unit, Schneider Children’s Medical Center, Petah Tikva 4920235, Israel
| | - Ruben Bromiker
- Neonatal Intensive Care Unit, Schneider Children’s Medical Center, Petah Tikva 4920235, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | | | | | - Ori Goldberg
- Neonatal Intensive Care Unit, Schneider Children’s Medical Center, Petah Tikva 4920235, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Pediatric Pulmonology Institute, Schneider Children’s Medical Center, Petach Tikva 4920235, Israel
| | - Itamar Nitzan
- Shaare Zedek Medical Center, Jerusalem 9103102, Israel
- Department of Pediatrics, Hebrew University of Jerusalem Medical School, Jerusalem 9112102, Israel
| | - Meir Nitzan
- Lev Academic Center, Jerusalem 9116001, Israel
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6
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Hassan AT, Ahmed SM, AbdelHaffeez AS, Mohamed SAA. Accuracy and precision of pulse oximeter at different sensor locations in patients with heart failure. Multidiscip Respir Med 2021; 16:742. [PMID: 34316367 PMCID: PMC8278778 DOI: 10.4081/mrm.2021.742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 03/26/2021] [Indexed: 11/25/2022] Open
Abstract
Background Despite its wide use in clinical practice, few studies have assessed the role of pulse oximetry in patients with heart failure. We aimed to evaluate the accuracy and precision of the pulse oximeter in patients with heart failure and to determine this accuracy at three different sensor locations. Methods Comparison of pulse oximetry reading (SpO2) with arterial oxygen saturation (SaO2) was reported in 3 groups of patients with heart failure (HF); those with ejection fraction (EF) >40%, those with EF <40%, and those with acute HF (AHF) with ST and non-ST segment elevation acute myocardial infarction (STEMI and non-STEMI). Results A total of 235 patients and 90 control subjects were enrolled. There were significant differences in O2 saturation between control and patients’ groups when O2 saturation is measured at the finger and toe, but not the ear probes; p=0.029, p=0.049, and 0.051, respectively. In HF with EF>40% and AHF with O2 saturations >90%, finger oximetry is the most accurate and reliable, while in HF with EF<40% and in patients with AHF with O2 saturations <90%, ear oximetry is the most accurate. Conclusion Pulse oximetry is a reliable tool in assessing oxygen saturation in patients with heart failure of different severity. In HF with EF>40% and in AHF with O2 saturations >90%, finger oximetry is the most accurate and reliable, while in HF with EF<40% and in patients with AHF with O2 saturations <90%, ear oximetry is the most accurate. Further studies are warranted.
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Zhang Z, Zhu Z, Bazor B, Lee S, Ding Z, Pan T. FeetBeat: A Flexible Iontronic Sensing Wearable Detects Pedal Pulses and Muscular Activities. IEEE Trans Biomed Eng 2019; 66:3072-3079. [DOI: 10.1109/tbme.2019.2900224] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Formerly, assessing oxygenation relied on recognizing cyanosis; however, this is unreliable. Also, in neonates, a pink color, suggesting absence of severe hypoxemia, is difficult to assess. An objective and continuous assessment of oxygenation is necessary. Currently, this is best achieved noninvasively by transcutaneous partial pressure of oxygen (PTcO2) monitoring or pulse oximetry. Because both PTcO2 and oxygen saturation monitors (pulse oximeters) may display erroneous measurements, thorough understanding of their operating principles is required. Also, clinicians must recognize the range of values expected in healthy neonates. In this article, data on these issues are reviewed.
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Abstract
OBJECTIVE Infants with single ventricle physiology have arterial oxygen saturations between 75 and 85%. Home monitoring with daily pulse oximetry is associated with improved interstage survival. They are typically sent home with expensive, bulky, hospital-grade pulse oximeters. This study evaluates the accuracy of both the currently used Masimo LNCS and a relatively inexpensive, portable, and equipped with Bluetooth technology study device, by comparing with the gold standard co-oximeter. DESIGN Prospective, observational study. SETTING Single institution, paediatric cardiac critical care unit, and neonatal ICU. INTERVENTIONS none. PATIENTS Twenty-four infants under 12 months of age with baseline oxygen saturation less than 90% due to cyanotic CHD. MEASUREMENTS AND RESULTS Pulse oximetry with WristOx2 3150 with infant sensors 8008 J (study device) and Masimo LCNS saturation sensor connected to a Philips monitor (hospital device) were measured simultaneously and compared to arterial oxy-haemoglobin saturation measured by co-oximetry. Statistical analysis evaluated the performances of each and compared to co-oximetry with Schuirmann's TOST equivalence tests, with equivalence defined as an absolute difference of 5% saturation or less. Neither the study nor the hospital device met the predefined standard for equivalence when compared with co-oximetry. The study device reading was on average 4.0% higher than the co-oximeter, failing to show statistical equivalence (p = 0.16). The hospital device was 7.4% higher than the co-oximeter and also did not meet the predefined standard for equivalence (p = 0.97). CONCLUSION Both devices tended to overestimate oxygen saturation in this patient population when compared to the gold standard, co-oximetry. The study device is at least as accurate as the hospital device and offers the advantage of being more portable with Bluetooth technology that allows reliable, efficient data transmission. Currently FDA-approved, smaller portable pulse oximeters can be considered for use in home monitoring programmes.
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Kim EH, Lee JH, Song IK, Kim HS, Jang YE, Yoo S, Kim JT. Accuracy of pulse oximeters at low oxygen saturations in children with congenital cyanotic heart disease: An observational study. Paediatr Anaesth 2019; 29:597-603. [PMID: 30938906 DOI: 10.1111/pan.13642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 03/25/2019] [Accepted: 03/28/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Pulse oximetry overestimates arterial oxygen saturation (SaO2 ) at less than 90% saturation in cyanotic children. The Masimo Blue sensor (Masimo Corp., Irvine, CA) is a pulse oximetry sensor developed for use in children with cyanosis. However, there remains a lack of research in actual clinical practice. AIMS We evaluated the intraoperative performance of three different pulse oximeters to measure oxyhemoglobin saturation (SpO2 ) at low saturations in pediatric patients with cyanotic heart disease and the influence of clinical variables (SaO2 , hemoglobin concentration, perfusion index, and weight) on the accuracy of the sensors. METHODS This prospective observational study compared SpO2 measured using three pulse oximeters (Masimo Blue [Masimo Corp., Irvine, CA]; Masimo LNCS, and Nellcor [Medtronic, Dublin, Ireland]) at selected SaO2 ranges (≥85%, 75%-84%, 60%-74%, and < 60%). Accuracy was evaluated according to bias and Bland-Altman analysis with appropriate correction for multiple measurements. Relationships between bias and clinical variables were assessed using a generalized estimating equation. RESULTS Two hundred and fifty-eight samples were analyzed. The mean overall bias (limits of agreement) of Masimo Blue, Masimo LNCS, and Nellcor sensor was -5.3 (-20.9 to 10.3%), -7.4 (-21.9 to 7.1%), and -7.4 (-22.5 to 15.1%), respectively. However, there was no difference in bias among the three sensors at SaO2 <60%. Generalized estimating equation showed that SaO2 value was associated with bias of all sensors. Perfusion index affected the bias of Blue sensor and LNCS sensor, and patients' weight was associated with bias of Nellcor sensor. CONCLUSION Masimo blue sensor demonstrated overall lower bias compared to the other two sensors. However, the accuracy of all sensors was similarly poor at SaO2 less than 60%. Bias was influenced by SaO2 , perfusion index, and body weight.
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Affiliation(s)
- Eun-Hee Kim
- Department of Anesthesiology and Pain medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji-Hyun Lee
- Department of Anesthesiology and Pain medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - In-Kyung Song
- Department of Anesthesiology and Pain medicine, Asan Medical Center, Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hee-Soo Kim
- Department of Anesthesiology and Pain medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Young-Eun Jang
- Department of Anesthesiology and Pain medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seokha Yoo
- Department of Anesthesiology and Pain medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin-Tae Kim
- Department of Anesthesiology and Pain medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
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Seifi S, Khatony A, Moradi G, Abdi A, Najafi F. Accuracy of pulse oximetry in detection of oxygen saturation in patients admitted to the intensive care unit of heart surgery: comparison of finger, toe, forehead and earlobe probes. BMC Nurs 2018; 17:15. [PMID: 29692684 PMCID: PMC5905124 DOI: 10.1186/s12912-018-0283-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 03/21/2018] [Indexed: 11/22/2022] Open
Abstract
Background Heart surgery patients are more at risk of poor peripheral perfusion, and peripheral capillary oxygen saturation (SpO2) measurement is regular care for continuous analysis of blood oxygen saturation in these patients. With regard to controversial studies on accuracy of the current pulse oximetry probes and lack of data related to patients undergoing heart surgery, the present study was conducted to determine accuracy of pulse oximetry probes of finger, toe, forehead and earlobe in detection of oxygen saturation in patients admitted to intensive care units for coronary artery bypass surgery. Methods In this clinical trial, 67 patients were recruited based on convenience sampling method among those admitted to intensive care units for coronary artery bypass surgery. The SpO2 value was measured using finger, toe, forehead and earlobe probes and then compared with the standard value of arterial oxygen saturation (SaO2). Data were entered into STATA-11 software and analyzed using descriptive, inferential and Bland-Altman statistical analyses. Results Highest and lowest correlational mean values of SpO2 and SaO2 were related to finger and earlobe probes, respectively. The highest and lowest agreement of SpO2 and SaO2 were related to forehead and earlobe probes. Conclusion The SpO2 of earlobe probes due to lesser mean difference, more limited confidence level and higher agreement ration with SaO2 resulted by arterial blood gas (ABG) analysis had higher accuracy. Thus, it is suggested to use earlobe probes in patients admitted to the intensive care unit for coronary artery bypass surgery. Trial registration Registration of this trial protocol has been approved in Iranian Registry of Clinical Trials at 2018–03-19 with reference IRCT20100913004736N22. “Retrospectively registered.”
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Affiliation(s)
- Sohila Seifi
- 1Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Khatony
- 2Nursing department, Nursing and Midwifery School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gholamreza Moradi
- 3Department of anesthesiology, Medicine School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Abdi
- 2Nursing department, Nursing and Midwifery School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farid Najafi
- 4Research Center for Environmental Determinants of Health (RCEDH), School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Scrimgeour GE, Griksaitis MJ, Pappachan JV, Baldock AJ. The Accuracy of Noninvasive Peripheral Pulse Oximetry After Palliative Cardiac Surgery in Patients With Cyanotic Congenital Heart Disease. World J Pediatr Congenit Heart Surg 2017; 8:32-38. [PMID: 28033078 DOI: 10.1177/2150135116673016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Children with cyanotic congenital heart disease (CCHD) live with oxyhemoglobin saturations that are typically expressed as percentages in the range of 70s and 80s. Peripheral pulse oximetry (measurement of SpO2) performs poorly in this range and yet is widely used to inform clinical decisions in these patients. The reference standard is co-oximetry of arterial samples (SaO2). METHODS In this study, 515 paired measurements of SpO2 and SaO2 were taken from 19 children who had undergone palliative cardiac surgery. RESULTS SpO2 (Masimo SET LNCS Neo pulse oximeter) overestimated oxyhemoglobin saturation in 82% of measurements (mean 4.6% ± 6.6%). There was a strong negative correlation between mean bias and SaO2 ( r = -.96, P = .002, 95% confidence interval: -0.99 to -0.68). CONCLUSION The results raise a concern that critical hypoxemia may go undetected and untreated if pulse oximetry is relied upon as the primary means of assessing oxyhemoglobin saturation in children with CCHD. Strong preference must be given to co-oximetry of arterial samples.
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Affiliation(s)
- Gemma E Scrimgeour
- 1 University of Southampton, Department of Medicine, Southampton, United Kingdom
| | - Michael J Griksaitis
- 2 Paediatric Intensive Care Unit, Southampton Children's Hospital, Southampton, United Kingdom
| | - John V Pappachan
- 2 Paediatric Intensive Care Unit, Southampton Children's Hospital, Southampton, United Kingdom
| | - Andrew J Baldock
- 2 Paediatric Intensive Care Unit, Southampton Children's Hospital, Southampton, United Kingdom
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May JM, Kyriacou PA, Petros AJ. A novel fontanelle probe for sensing oxygen saturation in the neonate. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa5946] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
UNLABELLED Introduction Non-invasive peripheral pulse oximeters are routinely used to measure oxyhaemoglobin saturation (SpO2) in cyanotic congenital heart disease. These probes are calibrated in healthy adult volunteers between arterial saturations of ~75 and 100%, using the gold standard of co-oximetry on arterial blood samples. There are little data to attest their accuracy in cyanotic congenital heart disease. Aims We aimed to assess the accuracy of a commonly used probe in children with cyanotic congenital heart disease. METHODS Children with cyanotic congenital heart disease admitted to the Paediatric Intensive Care Unit with an arterial line in situ were included to our study. Prospective simultaneous recordings of SpO2, measured by the Masimo SET® LNCS Neo peripheral probe, and co-oximeter saturations (SaO2) measured by arterial blood gas analysis were recorded. RESULTS A total of 527 paired measurements of SpO2 and SaO2 (using an ABL800 FLEX analyser) in 25 children were obtained. The mean bias of the pulse oximeter for all SaO2 readings was +4.7±13.8%. The wide standard deviation indicates poor precision. This mean bias increased to +7.0±13.7% at SaO2 recordings <75%. The accuracy root mean square of the recordings was 3.30% across all saturation levels, and this increased to 4.98% at SaO2 <75%. CONCLUSIONS The performance of the Masimo SET® LNCS Neo pulse oximeter is poor when arterial oxyhaemoglobin saturations are below 75%. It tends to overestimate saturations in children with cyanotic congenital heart disease. This may have serious implications for clinical decisions.
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Kochilas LK, Menk JS, Saarinen A, Gaviglio A, Lohr JL. A comparison of retesting rates using alternative testing algorithms in the pilot implementation of critical congenital heart disease screening in Minnesota. Pediatr Cardiol 2015; 36:550-4. [PMID: 25304248 DOI: 10.1007/s00246-014-1048-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/30/2014] [Indexed: 11/25/2022]
Abstract
Prior to state-wide implementation of newborn screening for critical congenital heart disease (CCHD) in Minnesota, a pilot program was completed using the protocol recommended by the Secretary's Advisory Committee on Heritable Disorders in Newborns and Children (SACHDNC). This report compares the retesting rates for newborn screening for CCHDs using the SACHDNC protocol and four alternative algorithms used in large published CCHD screening studies. Data from the original Minnesota study were reanalyzed using the passing values from these four alternative protocols. The retesting rate for the first pulse oximeter measurement ranged from 1.1 % in the SACHDNC protocol to 9.6 % in the Ewer protocol. The SACHDNC protocol generated the lowest rate of retesting among all tested algorithms. Our data suggest that even minor modifications of CCHD screening protocol would significantly impact screening retesting rate. In addition, we provide support for including lower extremity oxygen saturations in the screening algorithm.
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Affiliation(s)
- Lazaros K Kochilas
- Division of Pediatric Cardiology, Department of Pediatrics, University of Minnesota Children's Hospital, East Building 5th floor, 2450 Riverside Ave, Minneapolis, MN, 55454, USA,
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Abstract
OBJECTIVE For children with cyanotic congenital heart disease or acute hypoxemic respiratory failure, providers frequently make decisions based on pulse oximetry, in the absence of an arterial blood gas. The study objective was to measure the accuracy of pulse oximetry in the saturations from pulse oximetry (SpO2) range of 65% to 97%. METHODS This institutional review board-approved prospective, multicenter observational study in 5 PICUs included 225 mechanically ventilated children with an arterial catheter. With each arterial blood gas sample, SpO2 from pulse oximetry and arterial oxygen saturations from CO-oximetry (SaO2) were simultaneously obtained if the SpO2 was ≤ 97%. RESULTS The lowest SpO2 obtained in the study was 65%. In the range of SpO2 65% to 97%, 1980 simultaneous values for SpO2 and SaO2 were obtained. The bias (SpO2 - SaO2) varied through the range of SpO2 values. The bias was greatest in the SpO2 range 81% to 85% (336 samples, median 6%, mean 6.6%, accuracy root mean squared 9.1%). SpO2 measurements were close to SaO2 in the SpO2 range 91% to 97% (901 samples, median 1%, mean 1.5%, accuracy root mean squared 4.2%). CONCLUSIONS Previous studies on pulse oximeter accuracy in children present a single number for bias. This study identified that the accuracy of pulse oximetry varies significantly as a function of the SpO2 range. Saturations measured by pulse oximetry on average overestimate SaO2 from CO-oximetry in the SpO2 range of 76% to 90%. Better pulse oximetry algorithms are needed for accurate assessment of children with saturations in the hypoxemic range.
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Affiliation(s)
- Patrick A Ross
- Department of Anesthesiology Critical Care Medicine, 4650 Sunset Blvd Mailstop 12, Children's Hospital Los Angeles, Los Angeles, CA 90027.
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Abstract
The introduction of pulse oximetry in clinical practice has allowed for simple, noninvasive, and reasonably accurate estimation of arterial oxygen saturation. Pulse oximetry is routinely used in the emergency department, the pediatric ward, and in pediatric intensive and perioperative care. However, clinically relevant principles and inherent limitations of the method are not always well understood by health care professionals caring for children. The calculation of the percentage of arterial oxyhemoglobin is based on the distinct characteristics of light absorption in the red and infrared spectra by oxygenated versus deoxygenated hemoglobin and takes advantage of the variation in light absorption caused by the pulsatility of arterial blood. Computation of oxygen saturation is achieved with the use of calibration algorithms. Safe use of pulse oximetry requires knowledge of its limitations, which include motion artifacts, poor perfusion at the site of measurement, irregular rhythms, ambient light or electromagnetic interference, skin pigmentation, nail polish, calibration assumptions, probe positioning, time lag in detecting hypoxic events, venous pulsation, intravenous dyes, and presence of abnormal hemoglobin molecules. In this review we describe the physiologic principles and limitations of pulse oximetry, discuss normal values, and highlight its importance in common pediatric diseases, in which the principle mechanism of hypoxemia is ventilation/perfusion mismatch (eg, asthma exacerbation, acute bronchiolitis, pneumonia) versus hypoventilation (eg, laryngotracheitis, vocal cord dysfunction, foreign-body aspiration in the larynx or trachea). Additional technologic advancements in pulse oximetry and its incorporation into evidence-based clinical algorithms will improve the efficiency of the method in daily pediatric practice.
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Affiliation(s)
- Sotirios Fouzas
- Respiratory Unit, Department of Pediatrics, University Hospital of Patras, Rio, 265 04 Patras, Greece.
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Das J, Aggarwal A, Aggarwal NK. Pulse oximeter accuracy and precision at five different sensor locations in infants and children with cyanotic heart disease. Indian J Anaesth 2011; 54:531-4. [PMID: 21224970 PMCID: PMC3016573 DOI: 10.4103/0019-5049.72642] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Since the invention of pulse oximetry by Takuo Aoyagi in the early 1970s, its use has expanded beyond the perioperative care into neonatal, paediatric and adult intensive care units (ICUs). Pulse oximetry is one of the most important advances in respiratory monitoring as its readings (SpO2) are used clinically as an indirect estimation of arterial oxygen saturation (SaO2). Sensors were placed frequently on the sole, palm, ear lobe or toes in addition to finger. On performing an extensive Medline search using the terms “accuracy of pulse oximetry” and “precision of pulse oximetry”, limited data were found in congenital heart disease patients in the immediate post-corrective stage. Also, there are no reports and comparative data of the reliability and precision of pulse oximetry when readings from five different sensor locations (viz. finger, palm, toe, sole and ear) are analysed simultaneously. To fill these lacunae of knowledge, we undertook the present study in 50 infants and children with cyanotic heart disease in the immediate post-corrective stage.
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Affiliation(s)
- Jyotirmoy Das
- Department of Anesthesiology, Fortis Hospital, Shalimar Bagh, New Delhi, India
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Monitoring of standard hemodynamic parameters: heart rate, systemic blood pressure, atrial pressure, pulse oximetry, and end-tidal CO2. Pediatr Crit Care Med 2011; 12:S2-S11. [PMID: 22129545 DOI: 10.1097/pcc.0b013e318220e7ea] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Continuous monitoring of various clinical parameters of hemodynamic and respiratory status in pediatric critical care medicine has become routine. The evidence supporting these practices is examined in this review. METHODOLOGY A search of MEDLINE, EMBASE, PubMed, and the Cochrane Database was conducted to find controlled trials of heart rate, electrocardiography, noninvasive and invasive blood pressure, atrial pressure, end-tidal carbon dioxide, and pulse oximetry monitoring. Adult and pediatric data were considered. Guidelines published by the Society for Critical Care Medicine, the American Heart Association, the American Academy of Pediatrics, and the International Liaison Committee on Resuscitation were reviewed, including further review of references cited. RESULTS AND CONCLUSIONS Use of heart rate, electrocardiography, noninvasive and arterial blood pressure, atrial pressure, pulse oximetry, and end-tidal carbon dioxide monitoring in the pediatric critical care unit is commonplace; this practice, however, is not supported by well-controlled clinical trials. Despite the majority of literature being case series, expert opinion would suggest that use of routine pulse oximetry and end-tidal carbon dioxide is the current standard of care. In addition, literature would suggest that invasive arterial monitoring is the current standard for monitoring in the setting of shock. The use of heart rate, electrocardiography. and atrial pressure monitoring is advantageous in specific clinical scenarios (postoperative cardiac surgery); however, the evidence for this is based on numerous case series only.
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