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Taylor-Williams M, Spicer G, Bale G, Bohndiek SE. Noninvasive hemoglobin sensing and imaging: optical tools for disease diagnosis. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:JBO-220074VR. [PMID: 35922891 PMCID: PMC9346606 DOI: 10.1117/1.jbo.27.8.080901] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/27/2022] [Indexed: 05/08/2023]
Abstract
SIGNIFICANCE Measurement and imaging of hemoglobin oxygenation are used extensively in the detection and diagnosis of disease; however, the applied instruments vary widely in their depth of imaging, spatiotemporal resolution, sensitivity, accuracy, complexity, physical size, and cost. The wide variation in available instrumentation can make it challenging for end users to select the appropriate tools for their application and to understand the relative limitations of different methods. AIM We aim to provide a systematic overview of the field of hemoglobin imaging and sensing. APPROACH We reviewed the sensing and imaging methods used to analyze hemoglobin oxygenation, including pulse oximetry, spectral reflectance imaging, diffuse optical imaging, spectroscopic optical coherence tomography, photoacoustic imaging, and diffuse correlation spectroscopy. RESULTS We compared and contrasted the ability of different methods to determine hemoglobin biomarkers such as oxygenation while considering factors that influence their practical application. CONCLUSIONS We highlight key limitations in the current state-of-the-art and make suggestions for routes to advance the clinical use and interpretation of hemoglobin oxygenation information.
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Affiliation(s)
- Michaela Taylor-Williams
- University of Cambridge, Department of Physics, Cavendish Laboratory, Cambridge, United Kingdom, United Kingdom
- University of Cambridge, Cancer Research UK Cambridge Institute, Cambridge, United Kingdom, United Kingdom
| | - Graham Spicer
- University of Cambridge, Department of Physics, Cavendish Laboratory, Cambridge, United Kingdom, United Kingdom
- University of Cambridge, Cancer Research UK Cambridge Institute, Cambridge, United Kingdom, United Kingdom
| | - Gemma Bale
- University of Cambridge, Department of Physics, Cavendish Laboratory, Cambridge, United Kingdom, United Kingdom
- University of Cambridge, Electrical Division, Department of Engineering, Cambridge, United Kingdom, United Kingdom
| | - Sarah E Bohndiek
- University of Cambridge, Department of Physics, Cavendish Laboratory, Cambridge, United Kingdom, United Kingdom
- University of Cambridge, Cancer Research UK Cambridge Institute, Cambridge, United Kingdom, United Kingdom
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2
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Hansen ML, Hyttel-Sørensen S, Jakobsen JC, Gluud C, Kooi EMW, Mintzer J, de Boode WP, Fumagalli M, Alarcon A, Alderliesten T, Greisen G. The clinical effects of cerebral near-infrared spectroscopy monitoring (NIRS) versus no monitoring: a protocol for a systematic review with meta-analysis and trial sequential analysis. Syst Rev 2021; 10:111. [PMID: 33863369 PMCID: PMC8052775 DOI: 10.1186/s13643-021-01660-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 04/01/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Multiple clinical conditions are associated with cerebral hypoxia/ischaemia and thereby an increased risk of hypoxic-ischaemic brain injury. Cerebral near-infrared spectroscopy monitoring (NIRS) is a tool to monitor brain oxygenation and perfusion, and the clinical uptake of NIRS has expanded over recent years. Specifically, NIRS is used in the neonatal, paediatric, and adult perioperative and intensive care settings. However, the available literature suggests that clinical benefits and harms of cerebral NIRS monitoring are uncertain. As rates of clinically significant hypoxic-ischaemic brain injuries are typically low, it is difficult for randomised clinical trials to capture a sufficiently large number of events to evaluate the clinical effect of cerebral NIRS monitoring, when focusing on specific clinical settings. The aim of this systematic review will be to evaluate the benefits and harms of clinical care with access to cerebral NIRS monitoring versus clinical care without cerebral NIRS monitoring in children and adults across all clinical settings. METHODS We will conduct a systematic review with meta-analysis and trial sequential analysis. We will only include randomised clinical trials. The primary outcomes are all-cause mortality, moderate or severe persistent cognitive or neurological deficit, and proportion of participants with one or more serious adverse events. We will search CENTRAL, EMBASE, MEDLINE, and the Science Citation Index Expanded from their inception and onwards. Two reviewers will independently screen all citations, full-text articles, and extract data. The risk of bias will be appraised using the Cochrane risk of bias tool version 2.0. If feasible, we will conduct both random-effects meta-analysis and fixed-effect meta-analysis of outcome data. Additional analysis will be conducted to explore the potential sources of heterogeneity (e.g. risk of bias, clinical setting). DISCUSSION As we include trials across multiple clinical settings, there is an increased probability of reaching a sufficient information size. However, heterogeneity between the included trials may impair our ability to interpret results to specific clinical settings. In this situation, we may have to depend on subgroup analyses with inherent increased risks of type I and II errors. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020202986 . This systematic review protocol has been submitted for registration in the International Prospective Register of Systematic Reviews (PROSPERO) (http://www.crd.york.ac.uk/prospero) on the 12th of October 2020 and published on the 12th of November 2020 (registration ID CRD42020202986 ).
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Affiliation(s)
- Mathias Lühr Hansen
- Department of Neonatology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Simon Hyttel-Sørensen
- Department of Intensive Care, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Janus Christian Jakobsen
- Copenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, The Capital Region of Denmark, Denmark.,Department of Regional Health Research, The Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Christian Gluud
- Copenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, The Capital Region of Denmark, Denmark.,Department of Regional Health Research, The Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Elisabeth M W Kooi
- Division of Neonatology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jonathan Mintzer
- Department of Pediatrics, Division of Newborn Medicine, Mountainside Medical Center, Montclair, NJ, USA
| | - Willem P de Boode
- Division of Neonatology, Department of Pediatrics, Radboud University Medical Center, Radboud Institute for Health Sciences, Amalia Children's Hospital, Nijmegen, Netherlands
| | - Monica Fumagalli
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan, Via Francesc Sforza 35, 20122, Milano, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Via Festa del Perdono 7, 20122, Milano, Italy
| | - Ana Alarcon
- Department of Neonatology, Hospital Sant Joan de Deu, Passeig de Sant Joan de Deu 2, 08950 Esplugues de Llobregat, Barcelona, Spain
| | - Thomas Alderliesten
- Department of Neonatology, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, Netherlands
| | - Gorm Greisen
- Department of Neonatology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
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Park JH, Hwang JH, Chang YS, Lee MH, Park WS. Survival rate dependent variations in retinopathy of prematurity treatment rates in very low birth weight infants. Sci Rep 2020; 10:19401. [PMID: 33173128 PMCID: PMC7656246 DOI: 10.1038/s41598-020-76472-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 10/26/2020] [Indexed: 11/09/2022] Open
Abstract
As increased oxidative stress causes increased mortality and morbidities like bronchopulmonary dysplasia (BPD) and retinopathy of prematurity (ROP) in very low birth weight infants (VLBWIs), the conundrum of improved survival but increased ROP observed with the high oxygen saturation target range of 91–95% is difficult to explain. To determine the survival rate-dependent variation in ROP treatment rate, 6292 surviving eligible VLBWIs registered in the Korean Neonatal Network were arbitrarily grouped according to the survival rate of infants at 23–24 weeks’ gestation as group I (> 70%, n = 1626), group II (40–70%, n = 2984) and group III (< 40%, n = 1682). Despite significantly higher survival and lower BPD rates in group I than in groups II and III, the ROP treatment rate was higher in group I than in groups II and III. However, the adjusted odds ratios for ROP treatment were not significantly different between the study groups, and the ROP treatment rate in the infants at 23–24 weeks’ gestation was 21-fold higher than the infants at ≥ 27 weeks’ gestation. The controversial association between improved survival and reduced BPD reflecting quality improvement of neonatal intensive care but increased ROP treatment rate might be primarily attributed to the improved survival of the most immature infants.
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Affiliation(s)
- Jae Hyun Park
- Department of Pediatrics, Keimyung University Dongsan Hospital, Keimyung University College of Medicine, Daegu, Republic of Korea
| | - Jong Hee Hwang
- Department of Pediatrics, Ilsan Paik Hospital, InJe University College of Medicine, Goyang, Republic of Korea
| | - Yun Sil Chang
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Myung Hee Lee
- Statistics and Data Center, Samsung Medical Center, Seoul, Republic of Korea
| | - Won Soon Park
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea.
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McGraw MD, Sherlock LG, Bailey KL, Abman SH. Developmental Origins of Chronic Lung Diseases. Mechanical Stretch, Micro-RNAs, and Hydrogels. Am J Respir Cell Mol Biol 2019; 59:267-270. [PMID: 29641225 DOI: 10.1165/rcmb.2018-0092ro] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Matthew D McGraw
- 1 Breathing Institute and Pediatric Heart-Lung Center, Division of Pediatrics, and
| | - Laura G Sherlock
- 2 Division of Pediatrics, Section of Neonatal-Perinatal Medicine, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, Colorado; and
| | - Kolene L Bailey
- 3 Division of Pulmonary and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Steven H Abman
- 1 Breathing Institute and Pediatric Heart-Lung Center, Division of Pediatrics, and
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Montigaud Y, Périnel S, Dubus JC, Leclerc L, Suau M, Goy C, Clotagatide A, Prévôt N, Pourchez J. Development of an ex vivo respiratory pediatric model of bronchopulmonary dysplasia for aerosol deposition studies. Sci Rep 2019; 9:5720. [PMID: 30952897 PMCID: PMC6450907 DOI: 10.1038/s41598-019-42103-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 03/20/2019] [Indexed: 01/03/2023] Open
Abstract
Ethical restrictions are limitations of in vivo inhalation studies, on humans and animal models. Thus, in vitro or ex vivo anatomical models offer an interesting alternative if limitations are clearly identified and if extrapolation to human is made with caution. This work aimed to develop an ex vivo infant-like respiratory model of bronchopulmonary dysplasia easy to use, reliable and relevant compared to in vivo infant data. This model is composed of a 3D-printed head connected to a sealed enclosure containing a leporine thorax. Physiological data and pleural-mimicking depressions were measured for chosen respiratory rates. Homogeneity of ventilation was assessed by 81mkrypton scintigraphies. Regional radioaerosol deposition was quantified with 99mtechnetium-diethylene triamine pentaacetic acid after jet nebulization. Tidal volumes values are ranged from 33.16 ± 7.37 to 37.44 ± 7.43 mL and compliance values from 1.78 ± 0.65 to 1.85 ± 0.99 mL/cmH2O. Ventilation scintigraphies showed a homogenous ventilation with asymmetric repartition: 56.94% ± 9.4% in right lung and 42.83% ± 9.36 in left lung. Regional aerosol deposition in lungs exerted 2.60% ± 2.24% of initial load of radioactivity. To conclude the anatomical model satisfactorily mimic a 3-months old BPD-suffering bronchopulmonary dysplasia and can be an interesting tool for aerosol regional deposition studies.
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Affiliation(s)
- Yoann Montigaud
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, F - 42023, Saint-Etienne, France
| | - Sophie Périnel
- INSERM U 1059 Sainbiose, Université Jean Monnet, F-42023, Saint-Etienne, France
- CHU Saint-Etienne, Saint-Etienne, F-42055, France
| | - Jean-Christophe Dubus
- Médecine infantile, pneumo-allergologie, CRCM & CNRS, URMITE 6236, Assistance publique-Hôpitaux de Marseille, 13385, Marseille cedex 5, France
| | - Lara Leclerc
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, F - 42023, Saint-Etienne, France
| | - Marie Suau
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, F - 42023, Saint-Etienne, France
| | - Clémence Goy
- INSERM U 1059 Sainbiose, Université Jean Monnet, F-42023, Saint-Etienne, France
- CHU Saint-Etienne, Saint-Etienne, F-42055, France
| | - Anthony Clotagatide
- INSERM U 1059 Sainbiose, Université Jean Monnet, F-42023, Saint-Etienne, France
- CHU Saint-Etienne, Saint-Etienne, F-42055, France
| | - Nathalie Prévôt
- INSERM U 1059 Sainbiose, Université Jean Monnet, F-42023, Saint-Etienne, France
- CHU Saint-Etienne, Saint-Etienne, F-42055, France
| | - Jérémie Pourchez
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, F - 42023, Saint-Etienne, France.
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Saugstad OD. Oxygenation of the Immature Infant: A Commentary and Recommendations for Oxygen Saturation Targets and Alarm Limits. Neonatology 2018; 114:69-75. [PMID: 29669357 DOI: 10.1159/000486751] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 01/11/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND For 70 years, there has been a search for the optimal oxygenation of premature infants. In spite of the lack of evidence, guidelines have successively reduced oxygenation targets during these years. OBJECTIVES (1) To present a summary of previously published meta-analyses of 5 randomized studies (NeOProM) which tested a low (85-89%) versus a high (91-95%) oxygen saturation target the first weeks after birth on outcome of immature newborn infants. (2) To present international recommendations for oxygenation the first weeks after birth. METHODS Data were retrieved from meta-analyses and reviews of these studies. RESULTS Mortality and necrotizing enterocolitis (NEC) are significantly higher in patients with a low saturation target (relative risk, RR 1.16 and 1.24, respectively), while severe retinopathy of prematurity (ROP) is reduced (RR 0.74), fortunately without a change in the rate of blindness. Severe intraventricular hemorrhage, patent ductus arteriosus, and bronchopulmonary dysplasia (defined physiologically) were not significantly affected by the oxygen targets in the range of these studies. Based on these data, it is recommended that SpO2 targets from birth to 36 weeks postconceptional age for infants < 28 weeks gestational age (GA) should be between 90 and 94% (with alarm limits of 89 and 95%), respectively. It is recommended to keep infants small for GA well oxygenated within the suggested targets avoiding fluctuations. CONCLUSIONS The ideal oxygen saturation targets for infants < 28 weeks GA are not known. Mortality, ROP, and NEC seem to be particularly oxygen-sensitive outcome variables. The optimal oxygen saturation for premature infants > 28 weeks GA has not been carefully studied.
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Anesthesia Considerations in a Premie. Anesthesiology 2018. [DOI: 10.1007/978-3-319-74766-8_49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chan-Ling T, Gole GA, Quinn GE, Adamson SJ, Darlow BA. Pathophysiology, screening and treatment of ROP: A multi-disciplinary perspective. Prog Retin Eye Res 2017; 62:77-119. [PMID: 28958885 DOI: 10.1016/j.preteyeres.2017.09.002] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 09/18/2017] [Accepted: 09/20/2017] [Indexed: 12/24/2022]
Abstract
The population of infants at risk for retinopathy of prematurity (ROP) varies by world region; in countries with well developed neonatal intensive care services, the highest risk infants are those born at less than 28 weeks gestational age (GA) and less than 1 kg at birth, while, in regions where many aspects of neonatal intensive and ophthalmological care are not routinely available, more mature infants up to 2000 g at birth and 37 weeks GA are also at risk for severe ROP. Treatment options for both groups of patients include standard retinal laser photocoagulation or, more recently, intravitreal anti-VEGF drugs. In addition to detection and treatment of ROP, this review highlights new opportunities created by telemedicine, where screening and diagnosis of ROP in remote locations can be undertaken by non-ophthalmologists using digital fundus cameras. The ophthalmological care of the ROP infant is undertaken in the wider context of neonatal care and general wellbeing of the infant. Because of this context, this review takes a multi-disciplinary perspective with contributions from retinal vascular biologists, pediatric ophthalmologists, an epidemiologist and a neonatologist. This review highlights the latest insights regarding cellular and molecular mechanisms in the formation of the retinal vasculature in the human infant, pathogenesis of ROP, detection and treatment of severe ROP, the risks and benefits of anti-VEGF therapy, the identification of new therapies over the horizon, and the optimal neonatal care regimen for best ROP outcomes, and the benefits and pitfalls of telemedicine in the remote screening and diagnosis of ROP, all of which have the potential to improve ROP outcomes.
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Affiliation(s)
- Tailoi Chan-Ling
- Department of Anatomy, School of Medical Sciences and Bosch Institute, University of Sydney, NSW 2006, Australia.
| | - Glen A Gole
- Discipline of Paediatrics and Child Health, University of Queensland, Qld Children's Hospital, Sth Brisbane, Qld 4101, Australia.
| | - Graham E Quinn
- Division of Ophthalmology, The Children's Hospital of Philadelphia and Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Samuel J Adamson
- Department of Anatomy, School of Medical Sciences and Bosch Institute, University of Sydney, NSW 2006, Australia
| | - Brian A Darlow
- Department of Paediatrics, University of Otago, Christchurch, New Zealand.
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