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Benson EJ, Aronowitz DI, Forti RM, Lafontant A, Ranieri NR, Starr JP, Melchior RW, Lewis A, Jahnavi J, Breimann J, Yun B, Laurent GH, Lynch JM, White BR, Gaynor JW, Licht DJ, Yodh AG, Kilbaugh TJ, Mavroudis CD, Baker WB, Ko TS. Diffuse Optical Monitoring of Cerebral Hemodynamics and Oxygen Metabolism during and after Cardiopulmonary Bypass: Hematocrit Correction and Neurological Vulnerability. Metabolites 2023; 13:1153. [PMID: 37999249 PMCID: PMC10672802 DOI: 10.3390/metabo13111153] [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: 10/07/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Cardiopulmonary bypass (CPB) provides cerebral oxygenation and blood flow (CBF) during neonatal congenital heart surgery, but the impacts of CPB on brain oxygen supply and metabolic demands are generally unknown. To elucidate this physiology, we used diffuse correlation spectroscopy and frequency-domain diffuse optical spectroscopy to continuously measure CBF, oxygen extraction fraction (OEF), and oxygen metabolism (CMRO2) in 27 neonatal swine before, during, and up to 24 h after CPB. Concurrently, we sampled cerebral microdialysis biomarkers of metabolic distress (lactate-pyruvate ratio) and injury (glycerol). We applied a novel theoretical approach to correct for hematocrit variation during optical quantification of CBF in vivo. Without correction, a mean (95% CI) +53% (42, 63) increase in hematocrit resulted in a physiologically improbable +58% (27, 90) increase in CMRO2 relative to baseline at CPB initiation; following correction, CMRO2 did not differ from baseline at this timepoint. After CPB initiation, OEF increased but CBF and CMRO2 decreased with CPB time; these temporal trends persisted for 0-8 h following CPB and coincided with a 48% (7, 90) elevation of glycerol. The temporal trends and glycerol elevation resolved by 8-24 h. The hematocrit correction improved quantification of cerebral physiologic trends that precede and coincide with neurological injury following CPB.
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Affiliation(s)
- Emilie J. Benson
- Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA; (E.J.B.); (A.G.Y.)
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Danielle I. Aronowitz
- Division of Cardiothoracic Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (D.I.A.); (J.W.G.); (C.D.M.)
| | - Rodrigo M. Forti
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Alec Lafontant
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Nicolina R. Ranieri
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Jonathan P. Starr
- Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (J.P.S.); (T.J.K.)
| | - Richard W. Melchior
- Department of Perfusion Services, Cardiac Center, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA;
| | - Alistair Lewis
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jharna Jahnavi
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Jake Breimann
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Bohyun Yun
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Gerard H. Laurent
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Jennifer M. Lynch
- Division of Cardiothoracic Anesthesiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA;
| | - Brian R. White
- Division of Cardiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - J. William Gaynor
- Division of Cardiothoracic Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (D.I.A.); (J.W.G.); (C.D.M.)
| | - Daniel J. Licht
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Arjun G. Yodh
- Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA; (E.J.B.); (A.G.Y.)
| | - Todd J. Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (J.P.S.); (T.J.K.)
| | - Constantine D. Mavroudis
- Division of Cardiothoracic Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (D.I.A.); (J.W.G.); (C.D.M.)
| | - Wesley B. Baker
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Tiffany S. Ko
- Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (J.P.S.); (T.J.K.)
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Surma VJ, Patel A, Ng DK, Goswami DK, Garcia AV, Bembea MM. Effect of Red Blood Cell Transfusion on Regional Tissue Oxygenation in Pediatric Cardiac Surgery Patients. Anesth Analg 2023; 137:987-995. [PMID: 37036824 PMCID: PMC10562511 DOI: 10.1213/ane.0000000000006479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
BACKGROUND Red blood cell (RBC) transfusions are used frequently in pediatric patients admitted to the intensive care unit (ICU) after cardiac surgery. To improve data-driven transfusion decision-making in the ICU, we conducted a retrospective analysis to assess the effect of RBC transfusion on cerebral and somatic regional oxygenation (rSO2). METHODS We evaluated post- versus pre-RBC transfusion cerebral rSO2 and somatic rSO2 in all consecutive pediatric patients (age >28 days to <18 years) who underwent biventricular cardiac surgery at a single center between July 2016 and April 2020. RESULTS The final data set included 263 RBC postoperative transfusion events in 75 patients who underwent 83 surgeries. The median pretransfusion hemoglobin was 10.6 g/dL (25th-75th percentile, 9.3-11.6). The median pretransfusion cerebral and somatic rSO2 were 63% (54-71) and 69% (55-80), which increased by a median of 3 percentage points (-2 to 6) and 2 percentage points (-3 to 6), respectively, after transfusion. After adjusting for pretransfusion hemoglobin, change in hemoglobin posttransfusion versus pretransfusion, and potential confounders (age, sex, and STAT surgical mortality risk score), the posttransfusion versus pretransfusion change in cerebral or somatic rSO2 was not statistically significant. Pretransfusion cerebral rSO2 (crSO2) was ≤50%, a previously described threshold for increased risk for unfavorable neurological outcome, for 22 of 138 (16%) transfusion events with complete pre- and post-crSO2 data. Sixteen of these 22 (73%) transfusions resulted in a posttransfusion crSO2 >50%. When restricting analysis to the first (index) transfusion after arrival to the ICU from the operating room (administered at a median of 1.15 postoperative days [25th-75th percentile, 0.84-1.93]), between-patient pretransfusion hemoglobin was not associated with pretransfusion crSO2 but within-patient posttransfusion versus pretransfusion hemoglobin difference was significantly associated with posttransfusion versus pretransfusion crSO2 difference (mean posttransfusion versus pretransfusion crSO2 difference, 2.54; 95% confidence interval, 0.50-4.48). CONCLUSIONS In this study, neither cerebral nor somatic rSO2 increased significantly post- versus pre-RBC transfusion in pediatric cardiac surgery patients admitted to the ICU after biventricular repairs. However, almost three-quarters of transfusions administered when pretransfusion crSO2 was below the critical threshold of 50% resulted in a posttransfusion crSO2 >50%. In addition, the significant within-patient change in crSO2 in relation to the change in posttransfusion versus pretransfusion hemoglobin in the immediate postoperative period suggests that a personalized approach to transfusion following within-patient trends of crSO2 rather than absolute between-patient values may be an important focus for future research.
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Affiliation(s)
- Victoria J Surma
- From the Department of Anesthesiology/Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ankur Patel
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health
| | - Derek K Ng
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health
| | - Dheeraj K Goswami
- From the Department of Anesthesiology/Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alejandro V Garcia
- Department of Surgery (Pediatric), Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Melania M Bembea
- From the Department of Anesthesiology/Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Saleem Y, Darbari A, Sharma R, Vashisth A, Gupta A. Recent advancements in pediatric cardiopulmonary bypass technology for better outcomes of pediatric cardiac surgery. THE CARDIOTHORACIC SURGEON 2022. [DOI: 10.1186/s43057-022-00084-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Pediatric cardiac surgery is in itself very enigmatic and individualized. Presently, there has been a slew of new developments aimed primarily toward pediatric cardiopulmonary bypass for safer, patient-centered pediatric cardiac surgery. Still, lot of technological challenges need to be resolved, and their safer application in pediatric and neonate patients requires further refinement.
Main body of the abstract
Considering various significant yet unresolved issues of pediatric cardiac bypass, an exhaustive literature search was done on various internet databases with standard keywords. There are various new recent improvements; as the first oxygenator explicitly designed for neonatal patients; pediatric oxygenators with low prime volumes and surface areas that allow flows up to 2 L/min; pediatric oxygenators with integrated arterial filters; and miniature ultrafiltration devices that allow for high rates of ultrafiltrate removal. These advancements can significantly reduce cardiopulmonary bypass circuit surface areas and prime volumes. These advancements could reduce or eliminate the requirement for homologous red blood cells during or after surgery with reduction or eliminate bypass-related hemodilution, and inflammation. Because of the immaturity of the neonatal hemostatic system, conventional coagulation tests alone are insufficient to guide neonatal hemostatic therapy. Myocardial preservation techniques, safe temperature with duration are still debatable and yet to be fully explored.
Short conclusion
This review is based on Standards for Quality Improvement Reporting Excellence guidelines to provide a framework for reporting new knowledge to find better management strategy for pediatric cardiac cases.
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The acute influence of vasopressin on hemodynamic status and tissue oxygenation following the Norwood procedure. JTCVS OPEN 2022; 9:217-224. [PMID: 36003471 PMCID: PMC9390553 DOI: 10.1016/j.xjon.2022.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 01/12/2022] [Indexed: 12/04/2022]
Abstract
Objectives Arginine vasopressin (AVP) is used to treat hypotension. Because AVP increases blood pressure by increasing systemic vascular resistance, it may have an adverse effect on tissue oxygenation following the Norwood procedure. Methods Retrospective analysis of continuously captured hemodynamic data of neonates receiving AVP following the Norwood procedure. Results We studied 64 neonates exposed to AVP within 7 days after the Norwood procedure. For the entire group, AVP significantly increased mean blood pressure (2.5 ± 6.3) and cerebral and renal oxygen extraction ratios (4.1% ± 9.6% and 2.0% ± 4.7%, respectively; P < .001 for all values). In the right ventricle to pulmonary artery shunt cohort, AVP significantly increased blood pressure, arterial oxygen saturation (1.4% ± 3.8%; P = .011), pulmonary to systemic perfusion ratio (0.2 ± 0.4; P = .017), and cerebral and renal oxygen extraction ratios (4.6% ± 8.7%; P = .010% and 4.7% ± 9.4%; P = .014, respectively). The Blalock-Taussig shunt cohort experienced a less significant vasopressor response and no change in arterial oxygen saturation, pulmonary to systemic perfusion ratio, or cerebral and renal oxygen extraction ratios. Conclusions The right ventricle to pulmonary artery shunt cohort experienced a significant vasopressor response to AVP that was associated with a significant increase in pulmonary perfusion and decrease in cerebral and renal perfusion, whereas the Blalock-Taussig shunt cohort experienced a less significant vasopressor response and no change in pulmonary or systemic perfusion. The influence of AVP on tissue oxygenation following the Norwood procedure may have clinical implications that require further study.
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Bojan M, Bonaveglio E, Dolcino A, Mirabile C. Somatic and cerebral near infrared spectroscopy for the monitoring of perfusion during neonatal cardiopulmonary bypass. Interact Cardiovasc Thorac Surg 2019; 29:955-959. [DOI: 10.1093/icvts/ivz197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/29/2022] Open
Abstract
Abstract
OBJECTIVES
The somatic-cerebral regional oxygen saturation (rSO2) gradient has the potential to reveal a low cardiac output state at an early stage, when systemic vascular resistance increases in order to maintain cerebral perfusion, and results in a drop in somatic rSO2. We hypothesized that during neonatal cardiopulmonary bypass (CPB), the somatic-cerebral rSO2 gradient can also signal poor perfusion, as assessed by an increase in lactate concentration.
METHODS
In a retrospective review of neonatal bypass records, we investigated the association between the somatic-cerebral rSO2 gradient and serial lactate measurements. The somatic-cerebral rSO2 gradient, i.e. the area between the somatic and cerebral rSO2, was calculated for each CPB time interval between 2 lactate measurements, using the trapezoidal method. The association between the somatic-cerebral rSO2 gradient and lactate variation was explored using a mixed model for repeated measurements adjusted for the CPB temperature across intervals.
RESULTS
A total of 94 CPB intervals were analysed in 24 neonates, median age 6 days, median weight 3.1 kg. The median lactate variation per interval was +0.2 mmol l−1 (range −1.5 to +2.7), the median somatic-cerebral gradient was 0 (range −1229% min to +2049% min) and the median CPB temperature was 29.5°C (IQR 28.1–33.4). There was an independent association between the lactate increase and the somatic-cerebral rSO2 gradient (regression coefficient = −0.0006 ± 0.0002, P = 0.009).
CONCLUSIONS
A decrease in the somatic-cerebral rSO2 gradient was associated with an increase in lactate concentration, suggesting that the somatic-cerebral rSO2 gradient is a useful monitoring tool for the adequacy of perfusion during neonatal CPB.
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Affiliation(s)
- Mirela Bojan
- Department of Anesthesiology, Congenital Cardiac Unit, Marie Lannelongue Hospital, Le Plessis Robinson, France
| | - Enrico Bonaveglio
- Pediatric Cardiac Intensive Care, Regina Margherita Hospital, Città della Salute, Torino, Italy
| | - Andrea Dolcino
- Department of Anesthesiology, Necker-Enfants Malades Hospital, Paris, France
| | - Cristian Mirabile
- Department of Anesthesiology, Congenital Cardiac Unit, Marie Lannelongue Hospital, Le Plessis Robinson, France
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Bojan M. Recent achievements and future developments in neonatal cardiopulmonary bypass. Paediatr Anaesth 2019; 29:414-425. [PMID: 30714261 DOI: 10.1111/pan.13597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/11/2019] [Accepted: 01/18/2019] [Indexed: 12/21/2022]
Abstract
A primary goal of improving neonatal cardiopulmonary bypass has been making the circuit smaller and reduce the blood contacting surfaces. As bypass circuit size has decreased, bloodless surgery has become possible even in neonates. Since transfusion guidelines are difficult to construct based on existing literature, these technical advances should be taken advantage of in conjunction with an individualized transfusion scheme, based on monitoring of oxygen availability to the tissues. For the majority of neonatal heart operations, several centers have shifted toward normothermic bypass even for complex neonatal surgeries, in order to avoid the adverse effects of hypothermia. Deep hypothermic circulatory arrest is no longer a necessity but an option, and selective antegrade cerebral perfusion has become common practice; however, technical uncertainties with regard to this technique have to be addressed, based on reliable neurologic monitoring. Maintenance of patient-specific heparin concentrations during bypass is another key goal, since neonates have lower baseline antithrombin concentrations and, therefore, a higher risk for inadequate thrombin inhibition and postoperative bleeding. Due to the immaturity of their hemostatic system, the standard coagulation tests alone are inappropriate to guide hemostatic therapy in neonates. The use of indirect heparin concentration assays and global viscoelastic assays in the operating room is likely to represent the optimal strategy, and requires validation in neonates. Monitoring of global and regional indexes of oxygen availability and consumption on bypass have become possible; however, their use in neonates still has outstanding technical issues which should be addressed and hence needs further validation. Due to the immaturity of the neonatal myocardium, single-shot cold cardioplegia solutions are thought to confer the best myocardial protection; their superiority when compared to more conventional modalities, however, remains to be demonstrated.
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Affiliation(s)
- Mirela Bojan
- Congenital Cardiac Unit, Department of Anesthesiology, Marie Lannelongue Hospital, Le Plessis Robinson, France
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Prosen G, Strnad M, Doniger SJ, Markota A, Stožer A, Borovnik-Lesjak V, Mekiš D. Cerebral tissue oximetry levels during prehospital management of cardiac arrest - A prospective observational study. Resuscitation 2018; 129:141-145. [PMID: 29763712 DOI: 10.1016/j.resuscitation.2018.05.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 05/07/2018] [Accepted: 05/10/2018] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Near-infrared spectroscopy (NIRS) enables continuous monitoring of regional oximetry (rSO2). The aim of this study was to describe dynamics of regional cerebral oximetry levels during out of hospital cardiac arrest (OHCA) resuscitation, specifically around the time of restoration of spontaneous circulation (ROSC). METHODS This prospective observational study was performed in the prehospital setting during cardio-pulmonary resuscitation (CPR) of OHCA patients. In the three-year study period, two-hundred eighty OHCA's were responded to; rSO2 was continuously measured throughout CPR and after attaining ROSC. RESULTS Final data analysis included 53 patients. Continuous rSO2dynamics were described and data was compared amongst ROSC (22 cases) and no-ROSC (31 cases) groups. Initial rSO2levels were below 15% (not detectable) in both groups. With ongoing CPR, rSO2levels were higher in the ROSC group (median 22% vs. 14% in no-ROSC group, p = 0.030). Until ROSC, rSO2levels were higher throughout CPR before ROSC (mean maximal value 47% at ROSC vs. 31% no-ROSC, p < 0.01). Furthermore, we found a pattern of significant, rapid and sustained rise in rSO2levels minutes prior to ROSC and normalization thereafter. CONCLUSIONS Initial rSO2levels during OHCA are generally undetectable by the time EMS teams initiate CPR. With CPR, rSO2levels rise and are higher during CPR in patients who later achieve ROSC. Patients who achieve ROSC exhibit significant, rapid, and sustained rise in rSO2minutes prior to attaining ROSC, and normalization of rSO2 levels thereafter. Persistently low levels of rSO2 during CPR likely portend poor neurologic outcomes.
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Affiliation(s)
- Gregor Prosen
- Community health centre Maribor - Center for Emergency medicine, Cesta Proletarskih brigad 21, 2000 Maribor, Slovenia AND University of Maribor Medical Faculty, Taborska cesta 8, 2000 Maribor, Slovenia.
| | - Matej Strnad
- Community health centre Maribor - Center for Emergency medicine, Cesta Proletarskih brigad 21, 2000 Maribor, Slovenia AND University of Maribor Medical Faculty, Taborska cesta 8, 2000 Maribor, Slovenia
| | - Stephanie J Doniger
- Department of Emergency Medicine, NYU Winthrop Hospital, Mineola NY, USA; St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Andrej Markota
- University of Maribor Medical Faculty, Taborska cesta 8, Slovenia and University Medical Centre Maribor, Ljubljanska 5, 2000, Maribor, Slovenia
| | - Andraž Stožer
- University of Maribor Medical Faculty, Taborska cesta 8, 2000, Maribor, Slovenia
| | - Vesna Borovnik-Lesjak
- Community health centre Maribor - Center for Emergency medicine, Cesta Proletarskih brigad 21, 2000 Maribor, Slovenia
| | - Dušan Mekiš
- University of Maribor Medical Faculty, Taborska cesta 8, Slovenia and University Medical Centre Maribor, Ljubljanska 5, 2000, Maribor, Slovenia
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Yamamoto M, Hayashida M, Kakemizu-Watanabe M, Ando N, Mukaida H, Kawagoe I, Yusuke S, Inada E. B-Type Natriuretic Peptide and Hemoglobin are Two Major Factors Significantly Associated With Baseline Cerebral Oxygen Saturation Measured Using the INVOS Oximeter in Patients Undergoing Off-Pump Coronary Artery Bypass Graft Surgery. J Cardiothorac Vasc Anesth 2018; 32:187-196. [DOI: 10.1053/j.jvca.2017.04.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Indexed: 12/14/2022]
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Perioperative Near-Infrared Spectroscopy Monitoring in Neonates With Congenital Heart Disease: Relationship of Cerebral Tissue Oxygenation Index Variability With Neurodevelopmental Outcome. Pediatr Crit Care Med 2017; 18:213-218. [PMID: 28067688 DOI: 10.1097/pcc.0000000000001056] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To evaluate the value of perioperative cerebral near-infrared spectroscopy monitoring using variability analysis in the prediction of neurodevelopmental outcomes in neonates undergoing surgery for congenital heart disease. DESIGN Retrospective cohort study. SETTING Urban, academic, tertiary-care children's hospital. PATIENTS Neonates undergoing surgery with cardiopulmonary bypass for congenital heart disease. INTERVENTIONS Perioperative monitoring of continuous cerebral tissue oxygenation index by near-infrared spectroscopy and subsequent neurodevelopmental testing at 6, 15, and 21 months of age. MEASUREMENTS AND MAIN RESULTS We developed a new measure, cerebral tissue oxygenation index variability, using the root mean of successive squared differences of averaged 1-minute cerebral tissue oxygenation index values for both the intraoperative and first 24-hours postoperative phases of monitoring. There were 62 neonates who underwent cerebral tissue oxygenation index monitoring during surgery for congenital heart disease and 44 underwent subsequent neurodevelopmental testing (12 did not survive until testing and six were lost to follow-up). Among the 44 monitored patients who underwent neurodevelopmental testing, 20 (45%) had abnormal neurodevelopmental indices. Patients with abnormal neurodevelopmental indices had lower postoperative cerebral tissue oxygenation index variability when compared with patients with normal indices (p = 0.01). Adjusting for class of congenital heart disease and duration of deep hypothermic circulatory arrest, lower postoperative cerebral tissue oxygenation index variability was associated with poor neurodevelopmental outcome (p = 0.02). CONCLUSIONS We found reduced postoperative cerebral tissue oxygenation index variability in neonatal survivors of congenital heart disease surgery with poor neurodevelopmental outcomes. We hypothesize that reduced cerebral tissue oxygenation index variability may be a surrogate for impaired cerebral metabolic autoregulation in the immediate postoperative period. Further research is needed to investigate clinical implications of this finding and opportunities for using this measure to drive therapeutic interventions.
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Aly SA, Zurakowski D, Glass P, Skurow-Todd K, Jonas RA, Donofrio MT. Cerebral tissue oxygenation index and lactate at 24 hours postoperative predict survival and neurodevelopmental outcome after neonatal cardiac surgery. CONGENIT HEART DIS 2016; 12:188-195. [DOI: 10.1111/chd.12426] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/31/2016] [Accepted: 10/16/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Safwat A. Aly
- Department of Pediatrics; Children's National Medical Center; Washington District of Columbia, USA
| | - David Zurakowski
- Departments of Anesthesia and Surgery; Boston Children's Hospital, Harvard Medical School; Boston Massachusetts USA
| | - Penny Glass
- Department of Psychiatry and Behavioral Science; Children's National Medical Center; Washington District of Columbia USA
| | - Kami Skurow-Todd
- Division of Cardiology; Children's National Medical Center; Washington District of Columbia USA
| | - Richard A. Jonas
- Division of Cardiothoracic Surgery; Children's National Medical Center; Washington District of Columbia USA
| | - Mary T. Donofrio
- Division of Cardiology; Children's National Medical Center; Washington District of Columbia USA
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Green MS, Sehgal S, Tariq R. Near-Infrared Spectroscopy: The New Must Have Tool in the Intensive Care Unit? Semin Cardiothorac Vasc Anesth 2016; 20:213-24. [PMID: 27206637 DOI: 10.1177/1089253216644346] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Standard hemodynamic monitoring such as blood pressure and pulse oximetry may only provide a crude estimation of organ perfusion in the critical care setting. Near-infrared spectroscopy (NIRS) is based on the same principle as a pulse oximeter and allows continuous noninvasive monitoring of hemoglobin oxygenation and deoxygenation and thus tissue saturation "StO2" This review aims to provide an overview of NIRS technology principles and discuss its current clinical use in the critical care setting. The study selection was performed using the PubMed database to find studies that investigated the use of NIRS in both the critical care setting and in the intensive care unit. Currently, NIRS in the critical care setting is predominantly being used for infants and neonates. A number of studies in the past decade have shown promising results for the use of NIRS in surgical/trauma intensive care units during shock management as a prognostic tool and in guiding resuscitation. It is evident that over the past 2 decades, NIRS has gone from being a laboratory fascination to an actively employed clinical tool. Even though the benefit of routine use of this technology to achieve better outcomes is still questionable, the fact that NIRS is a low-cost, noninvasive monitoring modality improves the attractiveness of the technology. However, more research may be warranted before recommending its routine use in the critical care setting.
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Affiliation(s)
- Michael Stuart Green
- Drexel University College of Medicine/Hahnemann University Hospital, Philadelphia, PA, USA
| | - Sankalp Sehgal
- Drexel University College of Medicine/Hahnemann University Hospital, Philadelphia, PA, USA
| | - Rayhan Tariq
- Drexel University College of Medicine/Hahnemann University Hospital, Philadelphia, PA, USA
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A Cross-Sectional Survey of Near-Infrared Spectroscopy Use in Pediatric Cardiac ICUs in the United Kingdom, Ireland, Italy, and Germany. Pediatr Crit Care Med 2016; 17:36-44. [PMID: 26509814 DOI: 10.1097/pcc.0000000000000564] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Despite the increasing use of near-infrared spectroscopy across pediatric cardiac ICUs, there is significant variability and equipoise with no universally accepted management algorithms. We aimed to explore the use of near-infrared spectroscopy in pediatric cardiac ICUs in the United Kingdom, Ireland, Italy, and Germany. DESIGN A cross-sectional multicenter, multinational electronic survey of one consultant in each pediatric cardiac ICU. SETTING Pediatric cardiac ICUs in the United Kingdom and Ireland (n = 13), Italy (n = 12), and Germany (n = 33). INTERVENTIONS Questionnaire targeted to establish use, targets, protocols/thresholds for intervention, and perceived usefulness of near-infrared spectroscopy monitoring. RESULTS Overall, 42 of 58 pediatric cardiac ICUs (72%) responded: United Kingdom and Ireland, 11 of 13 (84.6%); Italy, 12 of 12 (100%); and Germany, 19 of 33 (57%, included all major centers). Near-infrared spectroscopy usage varied with 35% (15/42) reporting that near-infrared spectroscopy was not used at all (7/42) or occasionally (8/42); near-infrared spectroscopy use was much less common in the United Kingdom (46%) when compared with 78% in Germany and all (100%) in Italy. Only four units had a near-infrared spectroscopy protocol, and 18 specifically used near-infrared spectroscopy in high-risk patients; 37 respondents believed that near-infrared spectroscopy added value to standard monitoring and 23 believed that it gave an earlier indication of deterioration, but only 19 would respond based on near-infrared spectroscopy data alone. Targets for absolute values and critical thresholds for intervention varied widely between units. The reasons cited for not or occasionally using near-infrared spectroscopy were expense (n = 6), limited evidence and uncertainty on how it guides management (n = 4), difficulty in interpretation, and unreliability of data (n = 3). Amongst the regular or occasional near-infrared spectroscopy users (n = 35), 28 (66%) agreed that a multicenter study is warranted to ascertain its use. CONCLUSIONS Although most responding units used near-infrared spectroscopy for high-risk patients, the majority (31/35 [88%]) did not have any protocols or guidelines for intervention. Target thresholds and intervention algorithms are needed to support the use of near-infrared spectroscopy in pediatric cardiac ICUs; an international multicenter study is warranted.
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Should Cerebral Near-infrared Spectroscopy be Standard of Care in Adult Cardiac Surgery? Heart Lung Circ 2015; 24:544-50. [DOI: 10.1016/j.hlc.2015.01.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 01/19/2015] [Indexed: 11/18/2022]
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Denault A, Lamarche Y, Rochon A, Cogan J, Liszkowski M, Lebon JS, Ayoub C, Taillefer J, Blain R, Viens C, Couture P, Deschamps A. Innovative approaches in the perioperative care of the cardiac surgical patient in the operating room and intensive care unit. Can J Cardiol 2014; 30:S459-77. [PMID: 25432139 DOI: 10.1016/j.cjca.2014.09.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 09/11/2014] [Accepted: 09/24/2014] [Indexed: 02/07/2023] Open
Abstract
Perioperative care for cardiac surgery is undergoing rapid evolution. Many of the changes involve the application of novel technologies to tackle common challenges in optimizing perioperative management. Herein, we illustrate recent advances in perioperative management by focusing on a number of novel components that we judge to be particularly important. These include: the introduction of brain and somatic oximetry; transesophageal echocardiographic hemodynamic monitoring and bedside focused ultrasound; ultrasound-guided vascular access; point-of-care coagulation surveillance; right ventricular pressure monitoring; novel inhaled treatment for right ventricular failure; new approaches for postoperative pain management; novel approaches in specialized care procedures to ensure quality control; and specific approaches to optimize the management for postoperative cardiac arrest. Herein, we discuss the reasons that each of these components are particularly important in improving perioperative care, describe how they can be addressed, and their impact in the care of patients who undergo cardiac surgery.
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Affiliation(s)
- André Denault
- Department of Anesthesiology, Critical Care Program, Montreal Heart Institute, and Centre Hospitalier de l'Université de Montréal, Université de Montréal, Montreal, Quebec, Canada.
| | - Yoan Lamarche
- Department of Cardiac Surgery and Critical Care Program, Montreal Heart Institute, and Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montreal, Quebec, Canada
| | - Antoine Rochon
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Jennifer Cogan
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Mark Liszkowski
- Department of Medicine, Cardiology and Critical Care Program, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Sébastien Lebon
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Christian Ayoub
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Jean Taillefer
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Robert Blain
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Claudia Viens
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Pierre Couture
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Alain Deschamps
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
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Changes in cerebral oxygen saturation correlate with S100B in infants undergoing cardiac surgery with cardiopulmonary bypass. Pediatr Crit Care Med 2014; 15:219-28. [PMID: 24366505 DOI: 10.1097/pcc.0000000000000055] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The relationship of cerebral saturation measured by near-infrared spectroscopy with serum biomarker of brain injury S100B was investigated in infants undergoing cardiac surgery with cardiopulmonary bypass. DESIGN Prospective cohort study. SETTING Single-center children's hospital. PATIENTS Forty infants between 1 and 12 months old weighing greater than or equal to 4 kg with congenital heart disease undergoing cardiac surgery with cardiopulmonary bypass were enrolled. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Serum S100B was measured at eight time points over 72 hours using enzyme-linked immunosorbent assay. Physiologic data including arterial, cerebral, and somatic regional oxygen saturations measured by near-infrared spectroscopy were synchronously recorded at 1-minute intervals from anesthesia induction through 72 postoperative hours. The arterial-cerebral oxygen saturation difference was calculated as the difference between arterial saturation and cerebral regional saturation. Thirty-eight patients, 5.4 ± 2.5 months old, were included in the analysis; two were excluded due to the use of postoperative extracorporeal membrane oxygenation. Seventeen patients (44.7%) had preoperative cyanosis. S100B increased during cardiopulmonary bypass in all patients, from a median preoperative baseline of mean ± SE: 0.055 ± 0.038 to a peak of 0.610 ± 0.038 ng/mL, p less than 0.0001. Patients without preoperative cyanosis had a higher S100B peak at the end of cardiopulmonary bypass. Although the absolute cerebral regional saturation on cardiopulmonary bypass was not associated with S100B elevation, patients who had arterial-cerebral oxygen saturation difference greater than 50 at any time during cardiopulmonary bypass had a higher S100B peak (mean ± SE: 1.053 ± 0.080 vs 0.504 ± 0.039 ng/mL; p < 0.0001). CONCLUSIONS A wide cerebral arteriovenous difference measured by near-infrared spectroscopy during cardiopulmonary bypass is associated with increased serum S100B in the perioperative period and may be a modifiable risk factor for neurological injury.
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Sanchez-de-Toledo J, Chrysostomou C, Munoz R, Lichtenstein S, Sao-Avilés CA, Wearden PD, Morell VO, Clark RSB, Toney N, Bell MJ. Cerebral Regional Oxygen Saturation and Serum Neuromarkers for the Prediction of Adverse Neurologic Outcome in Pediatric Cardiac Surgery. Neurocrit Care 2013; 21:133-9. [DOI: 10.1007/s12028-013-9934-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Vernick WJ, Gutsche JT. Pro: Cerebral Oximetry Should be a Routine Monitor During Cardiac Surgery. J Cardiothorac Vasc Anesth 2013; 27:385-9. [DOI: 10.1053/j.jvca.2012.12.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Indexed: 12/13/2022]
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19
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Sood ED, Benzaquen JS, Davies RR, Woodford E, Pizarro C. Predictive value of perioperative near-infrared spectroscopy for neurodevelopmental outcomes after cardiac surgery in infancy. J Thorac Cardiovasc Surg 2013; 145:438-445.e1; discussion 444-5. [DOI: 10.1016/j.jtcvs.2012.10.033] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 08/29/2012] [Accepted: 10/22/2012] [Indexed: 10/27/2022]
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20
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Clark JB, Barnes ML, Undar A, Myers JL. Multimodality Neuromonitoring for Pediatric Cardiac Surgery. World J Pediatr Congenit Heart Surg 2012; 3:87-95. [DOI: 10.1177/2150135111418257] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Brain injury remains a source of morbidity associated with congenital heart surgery. Intraoperative neuromonitoring is used by many centers to help minimize neurologic injury and improve outcomes. Neuromonitoring at our institution is performed using a combination of near-infrared spectroscopy, transcranial Doppler ultrasound, electroencephalography, and somatosensory evoked potentials. Adverse or concerning parameters instigate attempts at corrective intervention. A review of the literature regarding neuromonitoring studies in pediatric cardiac surgery shows that evidence is limited to demonstrate that intraoperative neuromonitoring is associated with improved neurologic outcomes. Further clinical research is needed to assess the utility and cost-effectiveness of intraoperative neuromonitoring for pediatric heart surgery.
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Affiliation(s)
- Joseph B. Clark
- Department of Pediatrics, Penn State Hershey, Hershey, PA, USA
- Department of Surgery, Penn State Hershey, Hershey, PA, USA
| | | | - Akif Undar
- Department of Pediatrics, Penn State Hershey, Hershey, PA, USA
- Department of Surgery, Penn State Hershey, Hershey, PA, USA
- Department of Bioengineering, Penn State Hershey, Hershey, PA, USA
| | - John L. Myers
- Department of Pediatrics, Penn State Hershey, Hershey, PA, USA
- Department of Surgery, Penn State Hershey, Hershey, PA, USA
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21
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Simons J, Sood ED, Derby CD, Pizarro C. Predictive value of near-infrared spectroscopy on neurodevelopmental outcome after surgery for congenital heart disease in infancy. J Thorac Cardiovasc Surg 2012; 143:118-25. [DOI: 10.1016/j.jtcvs.2011.09.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 07/19/2011] [Accepted: 09/15/2011] [Indexed: 11/15/2022]
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22
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Reed CA, Baker RS, Lam CT, Hilshorst JL, Ferguson R, Lombardi J, Eghtesady P. Application of Near-Infrared Spectroscopy During Fetal Cardiac Surgery. J Surg Res 2011; 171:159-63. [DOI: 10.1016/j.jss.2009.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 10/25/2009] [Accepted: 11/05/2009] [Indexed: 11/30/2022]
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Abstract
Near-infrared spectroscopy is a noninvasive means of determining real-time changes in regional oxygen saturation of cerebral and somatic tissues. Hypoxic neurologic injuries not only involve devastating effects on patients and their families but also increase health care costs to the society. At present, monitors of cerebral function such as electroencephalograms, transcranial Doppler, jugular bulb mixed venous oximetry, and brain tissue oxygenation monitoring involve an invasive procedure, are operator-dependent, and/or lack the sensitivity required to identify patients at risk for cerebral hypoxia. Although 20th century advances in the understanding and management of resuscitation of critically ill and injured children have focused on global parameters (ie, pulse oximetry, capnography, base deficit, lactate, etc), a growing body of evidence now points to regional disturbances in microcirculation that will lead us in a new direction of adjunctive tissue monitoring and response to resuscitation. In the coming years, near-infrared spectroscopy will be accepted as a way for clinicians to more quickly and noninvasively identify patients with altered levels of cerebral and/or somatic tissue oxygenation and, in conjunction with global physiologic parameters, guide efficient and effective resuscitation to improve outcomes for critically ill and injured pediatric patients.
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24
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Bohn D. Objective assessment of cardiac output in infants after cardiac surgery. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 2011; 14:19-23. [PMID: 21444044 DOI: 10.1053/j.pcsu.2011.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
An accurate measurement of cardiac performance in infants after cardiopulmonary bypass has long been considered to be an important part of postoperative management. To be useful in clinical decision making, such measurements should ideally be reproducible, non invasive and accurately reflect tissue perfusion and oxygen delivery. Historically, we have relied on intermittent measurements of cardiac output using indicator dilution methods; and more recently, technologies that use pulse contour analysis, bio-impedance, or Doppler methodology. These all have the same shortcoming, that they provide a number that the information as to whether it provides adequate tissue perfusion. There is increasing emphasis being placed on the measurement of oxygen delivery either by mixed venous oxygen saturation and serum lactate, which are important markers of the adequacy of organ perfusion; and relating this to outcome, the development of organ dysfunction and length of ICU stay.
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Affiliation(s)
- Desmond Bohn
- Department of Critical Care Medicine, The Hospital for Sick Children, 555 University Ave, Toronto, Ontario, Canada.
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25
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Faulkner JT, Hartley M, Tang A. Using cerebral oximetry to prevent adverse outcomes during cardiac surgery. Perfusion 2010; 26:79-81. [DOI: 10.1177/0267659110393298] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We report a case of reduced cerebral oxygenation which had the possibility of leading to an adverse outcome if it had not been detected by the routine use of cerebral oximetry. This case study illustrates that an inadvertent re-adjustment of a single-stage venous cannula within the superior vena cava resulted only in the cerebral oximetry device alerting to a potential problem. All other monitoring devices remained within standard operating parameters, with no deviation throughout the duration of the incident.
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Affiliation(s)
- JT Faulkner
- Department of Clinical Perfusion, Lancashire Cardiac Centre, Blackpool, UK,
| | - M. Hartley
- Department of Cardiothoracic Anaesthesia, Lancashire Cardiac Centre, Blackpool, UK
| | - A. Tang
- Department of Cardiothoracic Surgery, Lancashire Cardiac Centre, Blackpool, UK
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26
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Gazit AZ, Huddleston CB, Checchia PA, Fehr J, Pezzella AT. Care of the pediatric cardiac surgery patient--part 2. Curr Probl Surg 2010; 47:261-376. [PMID: 20207257 DOI: 10.1067/j.cpsurg.2009.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Avihu Z Gazit
- Pediatric Critical Care Medicine and Cardiology, St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, Missouri, USA
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27
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Use of Cerebral Oximetry for Monitoring Cardiac Output During Off-Pump Implantation of Jarvik 2000 Left Ventricular Assist Device. Artif Organs 2010; 34:267-71. [DOI: 10.1111/j.1525-1594.2009.00827.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wolf M, Greisen G. Advances in near-infrared spectroscopy to study the brain of the preterm and term neonate. Clin Perinatol 2009; 36:807-34, vi. [PMID: 19944837 DOI: 10.1016/j.clp.2009.07.007] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This article reviews tissue oximetry and imaging to study the preterm and newborn infant brain by near-infrared spectroscopy. These two technologies are now advanced; nearly 100 reports on their use in newborn infants have been published, and commercial instruments are available. The precision of oximetry, however, is a limitation for its clinical use of assessing cerebral oxygenation. Imaging of brain function needs very well defined protocols for sensory stimulation as well as signal analysis to provide meaningful results.
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Affiliation(s)
- Martin Wolf
- Biomedical Optics Research Laboratory, Clinic of Neonatology, University Hospital Zurich, Frauenklinikstr. 10, 8091 Zurich, Switzerland.
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29
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Chakravarti SB, Mittnacht AJ, Katz JC, Nguyen K, Joashi U, Srivastava S. Multisite Near-Infrared Spectroscopy Predicts Elevated Blood Lactate Level in Children After Cardiac Surgery. J Cardiothorac Vasc Anesth 2009; 23:663-7. [DOI: 10.1053/j.jvca.2009.03.014] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Indexed: 11/11/2022]
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30
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Near-infrared spectroscopy: What we know and what we need to know—A systematic review of the congenital heart disease literature. J Thorac Cardiovasc Surg 2009; 137:154-9, 159e1-12. [DOI: 10.1016/j.jtcvs.2008.08.005] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 05/05/2008] [Accepted: 08/02/2008] [Indexed: 11/18/2022]
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31
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Abstract
Maintenance of cardiovascular stability is crucial to safe anesthetic practice, but measurement of cardiac output has been technically challenging, particularly in pediatric patients. Cardiovascular monitoring has therefore generally relied upon pressure-based measurements, as opposed to flow-based measurements. The measurement of cardiac output under anesthesia and in critical care has recently become easier as a result of new techniques of measurement. This article reviews the basic concepts of and rationale for cardiac output monitoring, and then describes the techniques available for monitoring in clinical practice.
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Affiliation(s)
- Justin J Skowno
- Department of Paediatric Anaesthesia, Red Cross War Memorial Children's Hospital, Cape Town, South Africa.
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32
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Argiriadou H, Anastasiadis K, Antonitsis P, Kanyamimboua D, Karapanagiotidis G, Papakonstantinou C. The inability of regional oxygen saturation monitoring in a patient with alkaptonuria undergoing aortic valve replacement. J Cardiothorac Vasc Anesth 2008; 23:586-8. [PMID: 18948036 DOI: 10.1053/j.jvca.2008.08.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Indexed: 11/11/2022]
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Kakihana Y, Matsunaga A, Yasuda T, Imabayashi T, Kanmura Y, Tamura M. Brain oxymetry in the operating room: current status and future directions with particular regard to cytochrome oxidase. JOURNAL OF BIOMEDICAL OPTICS 2008; 13:033001. [PMID: 18601545 DOI: 10.1117/1.2940583] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Near-infrared spectroscopy (NIRS) is a cerebral monitoring method that noninvasively and continuously measures cerebral hemoglobin oxygenation and the redox state of cytochrome oxidase using highly tissue-permeable near-infrared light. This technique now has wide clinical application, and its usefulness in the measurement of cerebral hemoglobin oxygenation has been confirmed under global cerebral injury and/or hypoxemic hypoxia; however, regional cerebral infarction located far from the monitoring site may not be detected by NIRS. Furthermore, the specificity and accuracy of the measurement of the redox state of cytochrome oxidase remain controversial. We apply NIRS to both animal and clinical investigations. Based on these results, we discuss the significance of the measurement of cerebral hemoglobin oxygenation and cytochrome oxidase in vivo and in clinical medicine. Using our algorithm, cytochrome oxidase signals are unaffected by hemoglobin signals, even when hematocrit values change from 35 to 5% under cardiopulmonary bypass in a dog model. In the clinical study, cytochrome oxidase during surgery is likely to be a good (though not perfect) predictor of postoperative cerebral outcome. NIRS appears to be a promising technology, but additional investigations are required to establish its clinical efficacy and justify its routine use during operative and perioperative periods.
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Affiliation(s)
- Yasuyuki Kakihana
- Kagoshima University Hospital, Division of Intensive Care Medicine, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
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Chakravarti S, Srivastava S, Mittnacht AJC. Near Infrared Spectroscopy (NIRS) in Children. Semin Cardiothorac Vasc Anesth 2008; 12:70-9. [DOI: 10.1177/1089253208316444] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Near infrared spectroscopy (NIRS) is a noninvasive method for the in vivo monitoring of tissue oxygenation. Originally used predominantly to assess cerebral oxygenation, NIRS has gained widespread popularity in many clinical settings in all age groups. Changes in regional tissue oxygenation as detected by NIRS may reflect the delicate balance between oxygen delivery and consumption in more than one organ system. However, more studies are required to establish the ability of NIRS monitoring to improve patient outcome. This review provides a comprehensive description of NIRS in children.
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35
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Denault A, Deschamps A, Murkin JM. A Proposed Algorithm for the Intraoperative Use of Cerebral Near-Infrared Spectroscopy. Semin Cardiothorac Vasc Anesth 2008; 11:274-81. [DOI: 10.1177/1089253207311685] [Citation(s) in RCA: 234] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Near-infrared spectroscopy (NIRS) is a technique that can be used as a noninvasive and continuous monitor of the balance between cerebral oxygen delivery and consumption. The authors develop and propose an algorithm for the use of NIRS based on optimizing factors that can affect cerebral oxygen supply/demand. These factors are the position of the vascular cannula, perfusion pressure, arterial oxygen content, partial pressure of carbon dioxide, haemoglobin, cardiac output, and the cerebral metabolic rate of oxygen. Dissemination of a useful treatment algorithm is the primary purpose of this article. Further multicenter studies are necessary to confirm the benefits and cost-effectiveness of this promising monitoring modality.
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Affiliation(s)
- André Denault
- Department of Anesthesiology, Montreal Heart Institute, Montreal, Quebec,
| | - Alain Deschamps
- Department of Anesthesiology, Montreal Heart Institute, Montreal, Quebec
| | - John M. Murkin
- Department of Anesthesiology and Perioperative Medicine, University Hospital, University of Western Ontario, London, Ontario Canada
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Wolf M, Ferrari M, Quaresima V. Progress of near-infrared spectroscopy and topography for brain and muscle clinical applications. JOURNAL OF BIOMEDICAL OPTICS 2007; 12:062104. [PMID: 18163807 DOI: 10.1117/1.2804899] [Citation(s) in RCA: 301] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
This review celebrates the 30th anniversary of the first in vivo near-infrared (NIR) spectroscopy (NIRS) publication, which was authored by Professor Frans Jobsis. At first, NIRS was utilized to experimentally and clinically investigate cerebral oxygenation. Later it was applied to study muscle oxidative metabolism. Since 1993, the discovery that the functional activation of the human cerebral cortex can be explored by NIRS has added a new dimension to the research. To obtain simultaneous multiple and localized information, a further major step forward was achieved by introducing NIR imaging (NIRI) and tomography. This review reports on the progress of the NIRS and NIRI instrumentation for brain and muscle clinical applications 30 years after the discovery of in vivo NIRS. The review summarizes the measurable parameters in relation to the different techniques, the main characteristics of the prototypes under development, and the present commercially available NIRS and NIRI instrumentation. Moreover, it discusses strengths and limitations and gives an outlook into the "bright" future.
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Affiliation(s)
- Martin Wolf
- University Hospital Zurich, Clinic of Neonatology, Biomedical Optics Research Laboratory, 8091 Zurich, Switzerland.
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Cardiopulmonary resuscitation: special considerations for infants and children with cardiac disease. Cardiol Young 2007; 17 Suppl 2:116-26. [PMID: 18039405 DOI: 10.1017/s1047951107001229] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Pulseless cardiac arrest, defined as the cessation of cardiac mechanical activity, determined by unresponsiveness, apneoa, and the absence of a palpable central pulse, accounts for around one-twentieth of admissions to paediatric intensive care units, be they medical or exclusively cardiac. Such cardiac arrest is higher in children admitted to a cardiac as opposed to a paediatric intensive care unit, but the outcome of these patients is better, with just over two-fifths surviving when treated in the cardiac intensive care unit, versus between one-sixth and one-quarter of those admitted to paediatric intensive care units. Children who receive chest compressions for bradycardia with pulses have a significantly higher rate of survival to discharge, at 60%, than do those presenting with pulseless cardiac arrest, with only 27% surviving to discharge. This suggests that early resuscitation before the patient becomes pulseless, along with early recognition and intervention, are likely to improve outcomes. Recently published reports of in-hospital cardiac arrests in children can be derived from the multi-centric National Registry of Cardiopulmonary Resuscitation provided by the American Heart Association. The population is heterogeneous, but most arrests occurred in children with progressive respiratory insufficiency, and/or progressive circulatory shock. During the past 4 years at the Children's Hospital of Philadelphia, 3.1% of the average 1000 annual admissions to the cardiac intensive care unit have received cardiopulmonary resuscitation. Overall survival of those receiving cardiopulmonary resuscitation was 46%. Survival was better for those receiving cardiopulmonary resuscitation after cardiac surgery, at 53%, compared with survival of 33% for pre-operative or non-surgical patients undergoing resuscitation. Clearly there is room for improvement in outcomes from cardiac resuscitation in children with cardiac disease. In this review, therefore, we summarize the newest developments in paediatric resuscitation, with an expanded focus upon the unique challenges and importance of anticipatory care in infants and children with cardiac disease.
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