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Pedersen C, Munch P, Kjaergaard J, Grønlykke L, Bräuer A. Accuracy of a zero-heat-flux thermometer in cardiac surgery, a prospective, multicentre, method comparison study. Sci Rep 2024; 14:3169. [PMID: 38326589 PMCID: PMC10850058 DOI: 10.1038/s41598-024-53647-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/03/2024] [Indexed: 02/09/2024] Open
Abstract
Accurate measurement of core temperature is of utmost importance during on-pump cardiac surgery, for detection of hypothermia before cardiopulmonary bypass (CPB), guidance of temperature management on CPB, active rewarming on CPB and guidance of warming therapy after CPB. Most temperature measurement methods are known to become inaccurate during rapid changes in core temperature and suffer from delayed detection of temperature changes. Zero-heat-flux temperature (ZHF) measurement from the lateral forehead may be an alternative, non-invasive method quantifying the core temperature. A prospective, observational, multicentre study was conducted in one hundred patients scheduled for on-pump coronary artery bypass grafting. Core temperatures were measured every minute by two zero-heat-flux thermometer (SpotOn™) and a bladder thermometer and a pulmonary artery catheter (PAC) in the period after induction of anesthesia until CPB. Accuracy and precision of both methods were compared against core temperature measured in the pulmonary artery using the method of Bland and Altman. A high accuracy (around 0.1 °C) and a very good precision (Limits of agreement (LoA) - 0.6; 0.4 °C) were found between zero-heat-flux thermometer and core temperature measured by PAC. Among the two ZHF thermometers the bias was negligible (- 0.003 °C) with narrow LoA of - 0.42 °C and 0.41 °C. In contrast, bias between bladder temperature and PAC temperature was large (0.51 °C) with corresponding LoA of - 0.06 °C and 1.1 °C. ZHF thermometers are in contrast to bladder temperature a reliable core temperature monitor in cardiac surgery during the period after induction of anestesia until CPB. The zero-heat-flux method can provide clinicians reliably with continuous and non-invasive measurements of core temperature in normothermic and mild hypothermic temperature ranges and therefore can be helpful to guide temperature management.
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Affiliation(s)
- Carsten Pedersen
- Department of Cardiothoracic Anesthesiology, Copenhagen University Hospital, 2100, Copenhagen, Denmark.
| | - Peter Munch
- Department of Cardiothoracic Anesthesiology, Aalborg University Hospital, Aalborg, Denmark
| | - Jesper Kjaergaard
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lars Grønlykke
- Department of Cardiothoracic Anesthesiology, Copenhagen University Hospital, 2100, Copenhagen, Denmark
| | - Anselm Bräuer
- Department of Anesthesiology, University Hospital Göttingen, Göttingen, Germany
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Ghia S, Savadjian A, Shin D, Diluozzo G, Weiner MM, Bhatt HV. Hypothermic Circulatory Arrest in Adult Aortic Arch Surgery: A Review of Hypothermic Circulatory Arrest and its Anesthetic Implications. J Cardiothorac Vasc Anesth 2023; 37:2634-2645. [PMID: 37723023 DOI: 10.1053/j.jvca.2023.08.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/11/2023] [Accepted: 08/20/2023] [Indexed: 09/20/2023]
Abstract
Diseases affecting the aortic arch often require surgical intervention. Hypothermic circulatory arrest (HCA) enables a safe approach during open aortic arch surgeries. Additionally, HCA provides neuroprotection by reducing cerebral metabolism and oxygen requirements. However, HCA comes with significant risks (eg, neurologic dysfunction, stroke, and coagulopathy), and the cardiac anesthesiologist must completely understand the surgical techniques, possible complications, and management strategies.
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Affiliation(s)
- Samit Ghia
- Department of Anesthesiology, Critical Care and Perioperative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Andre Savadjian
- Department of Anesthesiology and Critical Care, Duke University School of Medicine, Durham, NC
| | - DaWi Shin
- Department of Anesthesiology, Critical Care and Perioperative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Gabriele Diluozzo
- Department of Cardiovascular Surgery, Yale School of Medicine, Bridgeport, CT
| | - Menachem M Weiner
- Department of Anesthesiology, Critical Care and Perioperative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY.
| | - Himani V Bhatt
- Department of Anesthesiology, Critical Care and Perioperative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
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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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Gilbey T, Milne B, de Somer F, Kunst G. Neurologic complications after cardiopulmonary bypass - A narrative review. Perfusion 2023; 38:1545-1559. [PMID: 35986553 PMCID: PMC10612382 DOI: 10.1177/02676591221119312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Neurologic complications, associated with cardiac surgery and cardiopulmonary bypass (CPB) in adults, are common and can be devastating in some cases. This comprehensive review will not only consider the broad categories of stroke and neurocognitive dysfunction, but it also summarises other neurological complications associated with CPB, and it provides an update about risks, prevention and treatment. Where appropriate, we consider the impact of off-pump techniques upon our understanding of the contribution of CPB to adverse outcomes.
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Affiliation(s)
- Tom Gilbey
- Department of Anaesthesia & Pain Medicine, King’s College Hospital NHS Foundation Trust, London, UK
| | - Benjamin Milne
- Department of Anaesthesia & Pain Medicine, King’s College Hospital NHS Foundation Trust, London, UK
| | - Filip de Somer
- Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University Hospital, Ghent, Belgium
| | - Gudrun Kunst
- Department of Anaesthesia & Pain Medicine, King’s College Hospital NHS Foundation Trust, London, UK
- School of Cardiovascular Medicine and Sciences, Faculty of Life Sciences and Medicine, King’s College London British Heart Foundation Centre of Excellence, London, UK
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Meineri M, Daschkevich A, Andre G, Erdoes G. Temperature monitoring in cardiac surgery with transesophageal echocardiography probe: magic bullet or underutilization of a powerful tool? Eur J Cardiothorac Surg 2023; 64:ezad276. [PMID: 37555821 DOI: 10.1093/ejcts/ezad276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 08/07/2023] [Indexed: 08/10/2023] Open
Affiliation(s)
- Massimiliano Meineri
- Department of Anesthesiology and Intensive Care Medicine, Heart Center Leipzig, Leipzig, Germany
| | - Alexey Daschkevich
- University Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Ginther Andre
- University Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Gabor Erdoes
- Department of Anesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Arthursson H, Kjellberg G, Tovedal T, Lennmyr F. Cerebral oxygenation and autoregulation during rewarming on cardiopulmonary bypass. Perfusion 2023; 38:523-529. [PMID: 35038948 PMCID: PMC10026164 DOI: 10.1177/02676591211064961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Rewarming on cardiopulmonary bypass (CPB) is associated with increased metabolic demands; however, it remains unclear whether cerebral autoregulation is affected during this phase. This RCT aims to describe the effects of 20% supranormal, compared to normal CPB flow, on monitoring signs of inadequate perfusion, oxygenation, and disturbed cerebral autoregulation, during the rewarming phase of CPB. METHOD Thirty two patients scheduled for coronary artery bypass grafting were allocated to a Control group (n = 16) receiving a CPB pump flow corresponding to preoperatively measured cardiac output, and an Intervention group (n = 16) receiving the corresponding CPB pump flow increased by 20% during rewarming. Cerebral Oximetry Index (COx) was calculated with the aid of Near Infrared Spectroscopy. RESULTS Twenty five patients were included in the data. Results show a median COx value of 0.0 (IQR -0.33-0.5) (Control) and 0.0 (IQR -0.15-0.25) (Intervention), respectively; p = .85 with individual variations within groups. The median cerebral perfusion pressure (CPP) was 55 (52-58) (Control) and 61 (54-66) mmHg (Intervention); p = .08. No significant difference in rSO2 values was observed between the groups (58.5% (50-61) versus 64% (58-68); p = .06). CONCLUSION The present study showed no difference between increased and normal CPB pump flow with respect to cerebral autoregulation during rewarming. Large variations in cerebral autoregulation were seen at individual level.
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Affiliation(s)
- Henrik Arthursson
- Department of Thoracic Surgery and Anesthesiology, 151670Uppsala University Hospital, Uppsala, Sweden
| | - Gunilla Kjellberg
- Department of Thoracic Surgery and Anesthesiology, 151670Uppsala University Hospital, Uppsala, Sweden
| | - Thomas Tovedal
- Department of Thoracic Surgery and Anesthesiology, 151670Uppsala University Hospital, Uppsala, Sweden
| | - Fredrik Lennmyr
- Department of Thoracic Surgery and Anesthesiology, 151670Uppsala University Hospital, Uppsala, Sweden
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Haji-Jafari S, Rezaei M, Azizi-Fini I, Tafti SHA, Atoof F. The effect of rewarming on hemodynamic parameters and arterial blood gases of patients after open-heart surgery: A randomized controlled trial. JOURNAL OF VASCULAR NURSING 2023; 41:29-35. [PMID: 36898803 DOI: 10.1016/j.jvn.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 10/12/2021] [Accepted: 01/16/2023] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Hypothermia after open-heart surgery can have potential side effects for patients. AIM This study aimed to examine the effects of rewarming on patients' hemodynamic and arterial blood gases parameters after open-heart surgery. METHODS This randomized controlled trial was performed in 2019 on 80 patients undergoing open-heart surgery at Tehran Heart Center, Iran. The subjects were consecutively recruited and randomly assigned to an intervention group (n=40) and a control group (n=40). After the surgery, the intervention group was warmed with an electric warming mattress while the control group warmed using a simple hospital blanket. The hemodynamic parameters of the two groups were measured 6 times and arterial blood gas was measured 3 times. Data were analyzed by independent samples t and Chi-squared tests, and repeated measures analysis. RESULTS Before the intervention, the two groups did not significantly differ in terms of hemodynamic and blood gas parameters. However, the two groups were significantly different in the mean heart rate, systolic blood pressure, diastolic blood pressure, mean arterial blood pressure, temperature, right and left lung drainage in the first half-hour, and the first to fourth hours after the intervention (p < 0.05). Furthermore, there was a significant difference between the mean arterial oxygen pressure of the two groups during and after rewarming (P <0.05). CONCLUSION Rewarming of patients after open-heart surgery can significantly affect hemodynamic and arterial blood gas parameters. Therefore, rewarming methods can be used safely to improve the patients' hemodynamic parameters after open-heart surgery.
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Affiliation(s)
- Somayeh Haji-Jafari
- Trauma Nursing Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Mahboubeh Rezaei
- Trauma Nursing Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Ismail Azizi-Fini
- Trauma Nursing Research Center, Kashan University of Medical Sciences, Kashan, Iran.
| | - Seyed Hossein Ahmadi Tafti
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Iran
| | - Fatemeh Atoof
- Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.
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Zhong JW, Sessler DI, Mao G, Jerome A, Chandran N, Szmuk P. Optimal Positioning of Nasopharyngeal Temperature Probes in Infants and Children: A Prospective Cohort Study. Anesth Analg 2022; 136:986-991. [PMID: 36730063 DOI: 10.1213/ane.0000000000006312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND The nasopharynx is an easily accessible core-temperature monitoring site, but insufficient or excessive nasopharyngeal probe insertion can underestimate core temperature. Our goal was to estimate optimal nasopharyngeal probe insertion depth as a function of age. METHODS We enrolled 157 pediatric patients who had noncardiac surgery with endotracheal intubation in 5 groups: (1) newborn to 6 months old, (2) infants 7 months to 1 year old, (3) children 13 to 23 months old, (4) children 2 to 5 years old, and (5) children 6 to 12 years old. A reference esophageal temperature probe was inserted at an appropriate depth based on each patient's height. A nasopharyngeal temperature probe was inserted from the naris at 10 cm in newborn and infants, 15 cm in children aged 1 to 5 years old, and 20 cm in children who were 6 years or older. The study nasopharyngeal probes were withdrawn 1, 2.5, or 2 cm (depending on age) 10 times at 5-minute intervals. Optimal probe insertion distances were defined by limits of agreement (LOAs) between nasopharyngeal and esophageal temperatures <0.5 °C. RESULTS Optimal nasopharyngeal temperature probe position ranged from 6 to 10 cm in infants up to 6 months old, 7 to 8 cm in infants 7 to 12 months old, 7.5 to 12 cm in children 13 to 23 months old, and 10 to 12 cm in children aged 6 years and older. The 95% LOAs were <0.5 °C for all age categories except the 2- to 5-year-old group where the limits extended from -0.67 °C to 0.52 °C at 9 cm. At the optimal position within each age range, the bias (average nasopharyngeal-to-esophageal temperature difference) was ≤0.1 °C. CONCLUSIONS Nasopharyngeal thermometers accurately measure core temperature, but only when probes are inserted a proper distance, which varies with age. As with much in pediatrics, nasopharyngeal thermometer insertion depths should be age appropriate.
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Affiliation(s)
- John W Zhong
- From the University of Texas Southwestern Medical Center and Children's Health of Dallas, Dallas, Texas
| | - Daniel I Sessler
- Department of Outcome Research, Anesthesiology Institute, Cleveland Clinic; Cleveland, Ohio
| | - Guangmei Mao
- Department of Outcome Research, Anesthesiology Institute, Cleveland Clinic; Cleveland, Ohio
| | - Aveline Jerome
- From the University of Texas Southwestern Medical Center and Children's Health of Dallas, Dallas, Texas
| | - Neethu Chandran
- From the University of Texas Southwestern Medical Center and Children's Health of Dallas, Dallas, Texas
| | - Peter Szmuk
- From the University of Texas Southwestern Medical Center and Children's Health of Dallas, Dallas, Texas.,Outcome Research Consortium, Cleveland, Ohio
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9
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Augoustides JG. Protecting the Central Nervous System During Cardiac Surgery. Perioper Med (Lond) 2022. [DOI: 10.1016/b978-0-323-56724-4.00022-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Condello I, Nasso G, Serraino GF, Mastroroberto P, Fiore F, Speziale G, Santarpino G. The evolution of temperature management for open heart surgery: an historical perspective. J Cardiothorac Vasc Anesth 2021; 36:3237-3243. [DOI: 10.1053/j.jvca.2021.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/21/2021] [Accepted: 12/17/2021] [Indexed: 11/11/2022]
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Levels of Evidence Supporting the North American and European Perioperative Care Guidelines for Anesthesiologists between 2010 and 2020: A Systematic Review. Anesthesiology 2021; 135:31-56. [PMID: 34046679 DOI: 10.1097/aln.0000000000003808] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Although there are thousands of published recommendations in anesthesiology clinical practice guidelines, the extent to which these are supported by high levels of evidence is not known. This study hypothesized that most recommendations in clinical practice guidelines are supported by a low level of evidence. METHODS A registered (Prospero CRD42020202932) systematic review was conducted of anesthesia evidence-based recommendations from the major North American and European anesthesiology societies between January 2010 and September 2020 in PubMed and EMBASE. The level of evidence A, B, or C and the strength of recommendation (strong or weak) for each recommendation was mapped using the American College of Cardiology/American Heart Association classification system or the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system. The outcome of interest was the proportion of recommendations supported by levels of evidence A, B, and C. Changes in the level of evidence over time were examined. Risk of bias was assessed using Appraisal of Guidelines for Research and Evaluation (AGREE) II. RESULTS In total, 60 guidelines comprising 2,280 recommendations were reviewed. Level of evidence A supported 16% (363 of 2,280) of total recommendations and 19% (288 of 1,506) of strong recommendations. Level of evidence C supported 51% (1,160 of 2,280) of all recommendations and 50% (756 of 1,506) of strong recommendations. Of all the guidelines, 73% (44 of 60) had a low risk of bias. The proportion of recommendations supported by level of evidence A versus level of evidence C (relative risk ratio, 0.93; 95% CI, 0.18 to 4.74; P = 0.933) or level of evidence B versus level of evidence C (relative risk ratio, 1.63; 95% CI, 0.72 to 3.72; P = 0.243) did not increase in guidelines that were revised. Year of publication was also not associated with increases in the proportion of recommendations supported by level of evidence A (relative risk ratio, 1.07; 95% CI, 0.93 to 1.23; P = 0.340) or level of evidence B (relative risk ratio, 1.05; 95% CI, 0.96 to 1.15; P = 0.283) compared to level of evidence C. CONCLUSIONS Half of the recommendations in anesthesiology clinical practice guidelines are based on a low level of evidence, and this did not change over time. These findings highlight the need for additional efforts to increase the quality of evidence used to guide decision-making in anesthesiology. EDITOR’S PERSPECTIVE
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Yamada KP, Kariya T, Aikawa T, Ishikawa K. Effects of Therapeutic Hypothermia on Normal and Ischemic Heart. Front Cardiovasc Med 2021; 8:642843. [PMID: 33659283 PMCID: PMC7919696 DOI: 10.3389/fcvm.2021.642843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 01/21/2021] [Indexed: 12/24/2022] Open
Abstract
Therapeutic hypothermia has been used for treating brain injury after out-of-hospital cardiac arrest. Its potential benefit on minimizing myocardial ischemic injury has been explored, but clinical evidence has yet to confirm positive results in preclinical studies. Importantly, therapeutic hypothermia for myocardial infarction is unique in that it can be initiated prior to reperfusion, in contrast to its application for brain injury in resuscitated cardiac arrest patients. Recent advance in cooling technology allows more rapid cooling of the heart than ever and new clinical trials are designed to examine the efficacy of rapid therapeutic hypothermia for myocardial infarction. In this review, we summarize current knowledge regarding the effect of hypothermia on normal and ischemic hearts and discuss issues to be solved in order to realize its clinical application for treating acute myocardial infarction.
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Affiliation(s)
- Kelly P Yamada
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Taro Kariya
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Tadao Aikawa
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Kiyotake Ishikawa
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Qu JZ, Kao LW, Smith JE, Kuo A, Xue A, Iyer MH, Essandoh MK, Dalia AA. Brain Protection in Aortic Arch Surgery: An Evolving Field. J Cardiothorac Vasc Anesth 2020; 35:1176-1188. [PMID: 33309497 DOI: 10.1053/j.jvca.2020.11.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/10/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022]
Abstract
Despite advances in cardiac surgery and anesthesia, the rates of brain injury remain high in aortic arch surgery requiring circulatory arrest. The mechanisms of brain injury, including permanent and temporary neurologic dysfunction, are multifactorial, but intraoperative brain ischemia is likely a major contributor. Maintaining optimal cerebral perfusion during cardiopulmonary bypass and circulatory arrest is the key component of intraoperative management for aortic arch surgery. Various brain monitoring modalities provide different information to improve cerebral protection. Electroencephalography gives crucial data to ensure minimal cerebral metabolism during deep hypothermic circulatory arrest, transcranial Doppler directly measures cerebral arterial blood flow, and near-infrared spectroscopy monitors regional cerebral oxygen saturation. Various brain protection techniques, including hypothermia, cerebral perfusion, pharmacologic protection, and blood gas management, have been used during interruption of systemic circulation, but the optimal strategy remains elusive. Although deep hypothermic circulatory arrest and retrograde cerebral perfusion have their merits, there have been increasing reports about the use of antegrade cerebral perfusion, obviating the need for deep hypothermia. With controversy and variability of surgical practices, moderate hypothermia, when combined with unilateral antegrade cerebral perfusion, is considered safe for brain protection in aortic arch surgery performed with circulatory arrest. The neurologic outcomes of brain protection in aortic arch surgery largely depend on the following three major components: cerebral temperature, circulatory arrest time, and cerebral perfusion during circulatory arrest. The optimal brain protection strategy should be individualized based on comprehensive monitoring and stems from well-executed techniques that balance the major components contributing to brain injury.
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Affiliation(s)
- Jason Z Qu
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Lee-Wei Kao
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Jennifer E Smith
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Alexander Kuo
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Albert Xue
- Department of Cardiac Surgery, Nanjing Drum Tower Hospital, Nanjing, China
| | - Manoj H Iyer
- Department of Anesthesiology, The Ohio State University Medical Center, Columbus, OH
| | - Michael K Essandoh
- Department of Anesthesiology, The Ohio State University Medical Center, Columbus, OH
| | - Adam A Dalia
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
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14
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Akhtar MI, Gautel L, Lomivorotov V, Neto CN, Vives M, El Tahan MR, Marczin N, Landoni G, Rex S, Kunst G. Multicenter International Survey on Cardiopulmonary Bypass Perfusion Practices in Adult Cardiac Surgery. J Cardiothorac Vasc Anesth 2020; 35:1115-1124. [PMID: 33036886 DOI: 10.1053/j.jvca.2020.08.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To assess current practice in adult cardiac surgery during cardiopulmonary bypass (CPB) across European and non-European countries. DESIGN International, multicenter, web-based survey including 28 multiple choice questions addressing hemodynamic and tissue oxygenation parameters, organ protection measures, and the monitoring and usage of anesthetic drugs as part of the anesthetic and perfusion practice during CPB. SETTING Online survey endorsed by the European Association of Cardiothoracic Anesthesiologists. PARTICIPANTS Representatives of anesthesiology departments in European and non-European adult cardiac surgical centers. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS The survey was distributed via e-mail to European Association of Cardiothoracic Anesthesiologists members (n = 797) and kept open for 1 month. The response rate was 34% (n = 271). After exclusion of responses from the same centers and of incomplete answers, data from 202 cardiac centers in 56 countries, of which 67% of centers were university hospitals, were analyzed. Optimization of pump flows and tissue oxygenation parameters during CPB were applied by the majority of centers, with target flow rates of >2.2 L/min/m2 in 93% (n = 187) of centers and mean arterial blood pressures between 51 and 90 mmHg in 85% (n = 172). Hemoglobin transfusion triggers were either individualized or between 7 and 8 g/dL in 92% (n = 186) of centers. Mixed venous oxyhemoglobin saturations were assessed routinely in 59% (n = 120) and lactate in 88% (n = 178) of cardiac surgery units. Noninvasive cerebral saturation monitoring was used in a subgroup of patients or routinely in 84% (n = 169) of sites, and depth-of-anesthesia monitoring was used routinely in 53% (n = 106). Transesophageal echocardiography and pulmonary artery catheters were used routinely or in subgroups of patients in 97% (n = 195) and 71% (n = 153) of centers, respectively. The preferred site for temperature monitoring was the nasopharynx in 66% (n = 134) of centers. Anesthetic techniques were variable, with 26% of centers (n = 52) using low-tidal-volume ventilation and 28% (n = 57) using continuous positive airway pressure during CPB. Volatile agents were used routinely as the only agent during CPB in 36% sites (n = 73) and propofol in 47% (n = 95). Other drugs routinely administered included magnesium in 45% (n = 91), steroids in 18% (n = 37), tranexamic acid in 88% (n = 177), and aprotinin in 15% (n = 30) of the centers. CONCLUSION This international CPB survey revealed that techniques for optimization of pump flow and oxygenation during CPB usually were applied. Furthermore, cerebral and hemodynamic monitoring devices were frequently used during CPB. However, most CPB-related anesthetic techniques and medications were more variable. More high-quality randomized controlled trials are needed to assess anesthetic techniques and organ protection.
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Affiliation(s)
| | - Livia Gautel
- School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Vladimir Lomivorotov
- E. Meshalkin National Medical Research Center, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | | | - Marc Vives
- Department of Anesthesiology and Critical Care Medicine, Hospital Universitari de Girona Dr J Trueta, Institut d'Invedtigacio Biomèdica de Girona (IDIBGI), Girona, Spain
| | - Mohamed R El Tahan
- Anesthesiology Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Nandor Marczin
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom; Department of Anaesthesia, The Royal Brompton and Harefield NHS Foundation Trust, Harefield Hospital, Harefield, Middlesex, United Kingdom; Department of Anesthesia and Intensive Care, Semmelweis University, Budapest, Hungary
| | - Giovanni Landoni
- Anesthesia and Intensive Care Department, IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Steffen Rex
- Department of Anesthesiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Gudrun Kunst
- King's College Hospital NHS Foundation Trust, London, United Kingdom; King's College London British Heart Foundation Centre of Excellence, London, United Kingdom.
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15
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Gregory AJ, Grant MC, Manning MW, Cheung AT, Ender J, Sander M, Zarbock A, Stoppe C, Meineri M, Grocott HP, Ghadimi K, Gutsche JT, Patel PA, Denault A, Shaw A, Fletcher N, Levy JH. Enhanced Recovery After Cardiac Surgery (ERAS Cardiac) Recommendations: An Important First Step-But There Is Much Work to Be Done. J Cardiothorac Vasc Anesth 2020; 34:39-47. [PMID: 31570245 DOI: 10.1053/j.jvca.2019.09.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 09/02/2019] [Indexed: 01/17/2023]
Affiliation(s)
- Alexander J Gregory
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Alberta, Canada; Department of Anesthesiology, Perioperative and Pain Medicine, Libin Cardiovascular Institute of Alberta, Calgary, Alberta, Canada
| | - Michael C Grant
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD; Armstrong Institute for Patient Safety and Quality, The Johns Hopkins Medical Institutions, Baltimore, MD
| | | | - Albert T Cheung
- Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA
| | - Joerg Ender
- Department of Anesthesiology and Intensive Care Medicine, Herzzentrum Leipzig, Leipzig, Germany
| | - Michael Sander
- Department of Anaesthesiology and Intensive Care Medicine, UKGM University Hospital Gießen, Justus-Liebig-University Giessen, Gießen, Germany
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Christian Stoppe
- Department of Intensive Care Medicine, University Hospital of the RWTH Aachen, Aachen, Germany
| | | | - Hilary P Grocott
- Department of Anesthesiology, Perioperative and Pain Medicine and Department of Surgery, University of Manitoba, Winnipeg, Canada
| | - Kamrouz Ghadimi
- Department of Anesthesiology, Duke University, Durham, NC; Department of Critical Care, Duke University School of Medicine, Durham, NC
| | - Jacob T Gutsche
- Division of Cardiac Critical Care, University of Pennsylvania, Philadelphia, PA
| | - Prakash A Patel
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA
| | - Andre Denault
- Département d'Anesthésiologie et de Médecine de la Douleur, Institut de Cardiologie de Montréal, Montréal, Quebec Canada; Division des Soins Intensifs, Département de Chirurgie Cardiaque, Institut de Cardiologie de Montréal, Montréal, Quebec Canada; Département de Pharmacologie et de Physiologie, Institut de Cardiologie de Montréal, Montréal, Quebec Canada
| | - Andrew Shaw
- Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Nick Fletcher
- Department of Cardiothoracic Anesthesia and Critical Care, St. Georges University Hospital, London, United Kingdom; Institute of Anesthesia and Critical Care, Cleveland Clinic London, London, United Kingdom
| | - Jerrold H Levy
- Department of Anesthesiology, Duke University, Durham, NC; Department of Critical Care, Duke University School of Medicine, Durham, NC
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16
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Ko TS, Mavroudis CD, Baker WB, Morano VC, Mensah-Brown K, Boorady TW, Schmidt AL, Lynch JM, Busch DR, Gentile J, Bratinov G, Lin Y, Jeong S, Melchior RW, Rosenthal TM, Shade BC, Schiavo KL, Xiao R, Gaynor JW, Yodh AG, Kilbaugh TJ, Licht DJ. Non-invasive optical neuromonitoring of the temperature-dependence of cerebral oxygen metabolism during deep hypothermic cardiopulmonary bypass in neonatal swine. J Cereb Blood Flow Metab 2020; 40:187-203. [PMID: 30375917 PMCID: PMC6928559 DOI: 10.1177/0271678x18809828] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Management of deep hypothermic (DH) cardiopulmonary bypass (CPB), a critical neuroprotective strategy, currently relies on non-invasive temperature to guide cerebral metabolic suppression during complex cardiac surgery in neonates. Considerable inter-subject variability in temperature response and residual metabolism may contribute to the persisting risk for postoperative neurological injury. To characterize and mitigate this variability, we assess the sufficiency of conventional nasopharyngeal temperature (NPT) guidance, and in the process, validate combined non-invasive frequency-domain diffuse optical spectroscopy (FD-DOS) and diffuse correlation spectroscopy (DCS) for direct measurement of cerebral metabolic rate of oxygen (CMRO2). During CPB, n = 8 neonatal swine underwent cooling from normothermia to 18℃, sustained DH perfusion for 40 min, and then rewarming to simulate cardiac surgery. Continuous non-invasive and invasive measurements of intracranial temperature (ICT) and CMRO2 were acquired. Significant hysteresis (p < 0.001) between cooling and rewarming periods in the NPT versus ICT and NPT versus CMRO2 relationships were found. Resolution of this hysteresis in the ICT versus CMRO2 relationship identified a crucial insufficiency of conventional NPT guidance. Non-invasive CMRO2 temperature coefficients with respect to NPT (Q10 = 2.0) and ICT (Q10 = 2.5) are consistent with previous reports and provide further validation of FD-DOS/DCS CMRO2 monitoring during DH CPB to optimize management.
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Affiliation(s)
- Tiffany S Ko
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.,Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA.,Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Constantine D Mavroudis
- Division of Cardiovascular Surgery, Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Wesley B Baker
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Vincent C Morano
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA
| | - Kobina Mensah-Brown
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Timothy W Boorady
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Jennifer M Lynch
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - David R Busch
- Department of Anesthesiology & Pain Management, University of Texas Southwestern, Dallas, TX, USA.,Department of Neurology & Neurotherapeutics, University of Texas Southwestern, Dallas, TX, USA
| | - Javier Gentile
- Division of Cardiothoracic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - George Bratinov
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Yuxi Lin
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sejin Jeong
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Richard W Melchior
- Department of Perfusion Services, Cardiac Center, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Tami M Rosenthal
- Department of Perfusion Services, Cardiac Center, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Brandon C Shade
- Department of Perfusion Services, Cardiac Center, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Kellie L Schiavo
- Department of Perfusion Services, Cardiac Center, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Rui Xiao
- Department of Pediatrics, Division of Biostatistics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - J William Gaynor
- Division of Cardiothoracic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Arjun G Yodh
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA
| | - Todd J Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Daniel J Licht
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
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17
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Keenan JE, Benrashid E, Kale E, Nicoara A, Husain AM, Hughes GC. Neurophysiological Intraoperative Monitoring During Aortic Arch Surgery. Semin Cardiothorac Vasc Anesth 2016; 20:273-282. [PMID: 27708177 DOI: 10.1177/1089253216672441] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Circulatory management during replacement of the aortic arch is complex and involves a period of circulatory arrest to provide a bloodless field during arch vessel anastomosis. To guard against ischemic brain injury, tissue metabolic demand is reduced by systemically cooling the patient prior to circulatory arrest. Neurophysiological intraoperative monitoring (NIOM) is often used during the course of these procedures to provide contemporaneous assessment of brain status to help direct circulatory management decisions and detect brain ischemia. In this review, we discuss the characteristics of electrocerebral activity through the process of cooling, circulatory arrest, and rewarming as depicted through commonly used NIOM modalities, including electroencephalography and peripheral nerve somatosensory-evoked potentials. Attention is directed toward the role NIOM has traditionally played during deep hypothermic circulatory arrest, where it is used to define the point of electrocerebral inactivity or maximal cerebral metabolic suppression prior to initiating circulatory arrest while also discussing the evolving utility of NIOM when systemic circulatory arrest is initiated at more moderate degrees of hypothermia in conjunction with regional brain perfusion. The use of cerebral tissue oximetry by near-infrared spectroscopy as an alternative NIOM modality during surgery of the aortic arch is addressed as well. Finally, special considerations for NIOM and the detection of spinal cord ischemia during hybrid aortic arch repair and emerging operative techniques are also discussed.
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Affiliation(s)
- Jeffrey E Keenan
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Ehsan Benrashid
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Emily Kale
- Department of Neurology, Duke University Medical Center, Durham, NC, USA
| | - Alina Nicoara
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Aatif M Husain
- Department of Neurology, Duke University Medical Center, Durham, NC, USA
| | - G Chad Hughes
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC, USA
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18
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19
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Ramakrishna H, Gutsche JT, Evans AS, Patel PA, Weiner M, Morozowich ST, Gordon EK, Riha H, Shah R, Ghadimi K, Zhou E, Fernadno R, Yoon J, Wakim M, Atchley L, Weiss SJ, Stein E, Silvay G, Augoustides JGT. The Year in Cardiothoracic and Vascular Anesthesia: Selected Highlights From 2015. J Cardiothorac Vasc Anesth 2015; 30:1-9. [PMID: 26847747 DOI: 10.1053/j.jvca.2015.09.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Indexed: 12/14/2022]
Affiliation(s)
| | - Jacob T Gutsche
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Adam S Evans
- Icahn School of Medicine, Mount Sinai Hospital, New York, NY
| | - Prakash A Patel
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Menachem Weiner
- Icahn School of Medicine, Mount Sinai Hospital, New York, NY
| | | | - Emily K Gordon
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Hynek Riha
- Department of Anesthesiology and Intensive Care Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Ronak Shah
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Kamrouz Ghadimi
- Department of Anesthesiology and Critical Care, Duke University, Durham, NC
| | - Elizabeth Zhou
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Rohesh Fernadno
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jeongae Yoon
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Mathew Wakim
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Lance Atchley
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Stuart J Weiss
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Erica Stein
- Department of Anesthesiology, Ohio State University, Columbus, OH
| | - George Silvay
- Icahn School of Medicine, Mount Sinai Hospital, New York, NY
| | - John G T Augoustides
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
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