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Xu J, Wen J, Mathena RP, Singh S, Boppana SH, Yoon OI, Choi J, Li Q, Zhang P, Mintz CD. Early Postnatal Exposure to Midazolam Causes Lasting Histological and Neurobehavioral Deficits via Activation of the mTOR Pathway. Int J Mol Sci 2024; 25:6743. [PMID: 38928447 DOI: 10.3390/ijms25126743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/11/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024] Open
Abstract
Exposure to general anesthetics can adversely affect brain development, but there is little study of sedative agents used in intensive care that act via similar pharmacologic mechanisms. Using quantitative immunohistochemistry and neurobehavioral testing and an established protocol for murine sedation, we tested the hypothesis that lengthy, repetitive exposure to midazolam, a commonly used sedative in pediatric intensive care, interferes with neuronal development and subsequent cognitive function via actions on the mechanistic target of rapamycin (mTOR) pathway. We found that mice in the midazolam sedation group exhibited a chronic, significant increase in the expression of mTOR activity pathway markers in comparison to controls. Furthermore, both neurobehavioral outcomes, deficits in Y-maze and fear-conditioning performance, and neuropathologic effects of midazolam sedation exposure, including disrupted dendritic arborization and synaptogenesis, were ameliorated via treatment with rapamycin, a pharmacologic mTOR pathway inhibitor. We conclude that prolonged, repetitive exposure to midazolam sedation interferes with the development of neural circuitry via a pathologic increase in mTOR pathway signaling during brain development that has lasting consequences for both brain structure and function.
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Affiliation(s)
- Jing Xu
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
- Department of Anesthesiology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710061, China
| | - Jieqiong Wen
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710000, China
| | - Reilley Paige Mathena
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
| | - Shreya Singh
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
| | - Sri Harsha Boppana
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
| | - Olivia Insun Yoon
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
| | - Jun Choi
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
| | - Qun Li
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
| | - Pengbo Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710000, China
| | - Cyrus David Mintz
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21209, USA
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Giordano A, Lehner B, Voicu A, Donzeau D, Joulie A, Froissant L, Fontas E, Bailleux S. Intranasal dexmedetomidine for sedation in ABR testing in children: No pain, big gain! Int J Pediatr Otorhinolaryngol 2024; 181:111981. [PMID: 38749259 DOI: 10.1016/j.ijporl.2024.111981] [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: 03/25/2024] [Revised: 05/03/2024] [Accepted: 05/11/2024] [Indexed: 06/15/2024]
Abstract
OBJECTIVES Obtaining perfect immobility or sleep in children undergoing ABR auditory brainstem response) testing can be challenging. We examined the effectiveness and safety of intranasal dexmedetomidine for sedation of children undergoing ABR testing. MATERIAL AND METHODS We included prospectively all patients aged from 1 to 15 years for whom sedation for ABR testing was required, between July 2018 and November 2021. We administered an initial dose of 2.5 μg/kg intranasal dexmedetomidine with a repeat dose of 1 μg/kg if needed 30 min later. Collected data included success rate of sedation, sedation onset and recovery times and incidence of side effects. RESULTS ABR testing was undertaken successfully in 57 of the 59 patients, giving a total success rate of 96,6 %. (95 % confidence interval 88.5 %-99.1 %). The median time to onset of sleep was 32 ± 18.3 min. The median duration of sedation recovery time was 48 ± 24.7 min. We recorded the adverse effects. Thirty-one patients experienced bradycardia and 28 patients experienced hypotension, all of which resolved without intervention. CONCLUSION Intranasal dexmedetomidine is an effective, safe, simple of use and noninvasive method for sedation in children. It could have a major role in auditory brainstem response testing, specially in the case of non-cooperative children. REGISTRATION NUMBER OF THE TRIAL NCT03530371.
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Affiliation(s)
- Ana Giordano
- Department of Pediatric Otorhinolaryngology-Head & Neck Surgery, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Fondation Lenval, Nice, France.
| | - Brigitte Lehner
- Department of Pediatric Otorhinolaryngology-Head & Neck Surgery, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Fondation Lenval, Nice, France.
| | - Anca Voicu
- Department of Pediatric Otorhinolaryngology-Head & Neck Surgery, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Fondation Lenval, Nice, France.
| | - Dominique Donzeau
- Department of Clinical Research, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Department of Clinical Research and Innovation, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, Nice, France.
| | - Aline Joulie
- Department of Clinical Research, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Department of Clinical Research and Innovation, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, Nice, France.
| | - Luc Froissant
- Department of Clinical Research, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Department of Clinical Research and Innovation, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, Nice, France.
| | - Eric Fontas
- Department of Clinical Research and Innovation, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, Nice, France.
| | - Sonanda Bailleux
- Department of Pediatric Otorhinolaryngology-Head & Neck Surgery, Hôpitaux Pédiatriques de Nice CHU- Lenval, Nice, France; Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, Nice, France.
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Goldstein M, Jergel A, Karpen S, He Z, Austin TM, Hall M, Deep A, Gilbertson L, Kamat P. Trends in sedation-analgesia practices in pediatric liver transplant patients admitted postoperatively to the pediatric intensive care unit: An analysis of data from the pediatric health information system (PHIS) database. Pediatr Transplant 2024; 28:e14660. [PMID: 38017659 DOI: 10.1111/petr.14660] [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: 08/24/2023] [Revised: 10/26/2023] [Accepted: 11/16/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Children admitted to the pediatric intensive care unit (PICU), after liver transplantation, frequently require analgesia and sedation in the immediate postoperative period. Our objective was to assess trends and variations in sedation and analgesia used in this cohort. METHODS Multicenter retrospective cohort study using the Pediatric Health Information System from 2012 to 2022. RESULTS During the study period, 3963 patients with liver transplantation were admitted to the PICU from 32 US children's hospitals with a median age of 2 years [IQR: 0.00, 10.00]. 54 percent of patients received mechanical ventilation (MV). Compared with patients without MV, those with MV were more likely to receive morphine (57% vs 49%, p < .001), fentanyl (57% vs 44%), midazolam (45% vs 31%), lorazepam (39% vs. 24%), dexmedetomidine (38% vs 30%), and ketamine (25% vs 12%), all p < .001. Vasopressor usage was also higher in MV patients (22% vs. 35%, p < .001). During the study period, there was an increasing trend in the utilization of dexmedetomidine and ketamine, but the use of benzodiazepine decreased (p < .001). CONCLUSION About 50% of patients who undergo liver transplant are placed on MV in the PICU postoperatively and receive a greater amount of benzodiazepines in comparison with those without MV. The overall utilization of dexmedetomidine and ketamine was more frequent, whereas the administration of benzodiazepines was less during the study period. Pediatric intensivists have a distinctive opportunity to collaborate with the liver transplant team to develop comprehensive guidelines for sedation and analgesia, aimed at enhancing the quality of care provided to these patients.
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Affiliation(s)
- Matthew Goldstein
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta at Egleston, Atlanta, Georgia, USA
| | - Andrew Jergel
- Department of Pediatrics, Pediatric Biostatistics Core at Emory University School of Medicine, Atlanta, Georgia, USA
| | - Saul Karpen
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Children's Healthcare of Atlanta, and Emory University School of Medicine, Atlanta, Georgia, USA
| | - Zhulin He
- Department of Pediatrics, Pediatric Biostatistics Core at Emory University School of Medicine, Atlanta, Georgia, USA
| | - Thomas M Austin
- Department of Anesthesiology, Shands Children's Hospital, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Matt Hall
- Children's Hospital Association, Lenexa, Kansas, USA
| | - Akash Deep
- Paediatric Intensive Care Unit (PICU), King's College Hospital, London, UK
| | - Laura Gilbertson
- Department of Anesthesiology and Pain Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Pradip Kamat
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta at Egleston, Atlanta, Georgia, USA
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Pediatric Intensive Care Unit Patients: Sedation, Monitoring, and Neurodevelopmental Outcomes. J Neurosurg Anesthesiol 2023; 35:147-152. [PMID: 36745180 DOI: 10.1097/ana.0000000000000881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/02/2022] [Indexed: 12/12/2022]
Abstract
The design and conduct of pediatric sedation studies in critically ill patients have historically been challenging due to the complexity of the pediatric intensive care unit (PICU) environment and the difficulty of establishing equipoise. Clinical trials, for instance, represent 1 important means of advancing our knowledge in this field, but there is a paucity of such studies in the literature. Accounting for ground-level factors in planning for each trial phase (eg, enrollment, intervention, assessment, and follow-up) and the presence of broader system limitations is of key importance. In addition, there is a need for early planning, coordination, and obtaining buy-in from individual study sites and staff to ensure success, particularly for multicenter studies. This review synthesizes the current state of pediatric sedation research and the myriad of challenges in designing and conducting successful trials in this particular area. The review poses consideration for future research directions, including novel study designs, and discusses electroencephalography monitoring and neurodevelopmental outcomes of PICU survivors.
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Atlas N, Sinclair EM, Simon HK, Riedesel EL, Figueroa J, Kamat PP, Santore MT. Management of esophageal button battery ingestions: resource utilization and outcomes. Pediatr Surg Int 2022; 38:473-478. [PMID: 35088154 DOI: 10.1007/s00383-021-05058-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/13/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Institutions are adopting the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) guidelines for pediatric esophageal button battery ingestion (EBBI). Our objective was to evaluate the guidelines' impact on in-hospital resource utilization and short-term clinical outcomes in hemodynamically stable patients after endoscopic battery removal. METHODS A single-center retrospective review of all EBBI admissions from 2010 to 2020. Patients were divided into two groups based on adoption of national guidelines: pre-guideline (2010-2015) and post-guideline (2016-2020). RESULTS Sixty-five patients were studied (pre-guideline n = 23; post-guideline n = 42). Compared with pre-guideline, post-guideline use of magnetic resonance imaging (MRI) increased (2/23 [8.7%]; 30/42 [71.4%]; p < 0.001). Post-guideline increases resulted for median days (IQR) receiving antibiotics (0 [0, 4]; 6 [3, 8]; p = 0.01), total pediatric intensive care unit admission (0 [0, 1]; 3 [0, 6]; p < 0.001), and total hospital length of stay (5 [2, 11]; 11.5 [4, 17]; p = 0.02). Two patients in the post-guideline group had delayed presentations despite normal imaging: one with TEF and one with aorto-esophageal fistula. All survived to discharge. CONCLUSION In EBBI cases managed using the consensus based NASPHAGN guidelines, we report increased resource utilization without improved patient outcomes. Further research should evaluate post-guideline costs and resource utilization.
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Affiliation(s)
- Nir Atlas
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Elizabeth M Sinclair
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Harold K Simon
- Division of Pediatric Emergency Medicine, Department of Pediatrics and Emergency Medicine, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Erica L Riedesel
- Division of Pediatric Radiology and Imaging, Department of Radiology, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Janet Figueroa
- Department of Pediatrics, Pediatric Biostatistics Core at Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Pradip P Kamat
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA. .,Children's Healthcare of Atlanta, 4th Floor PICU, 1405 Clifton Rd NE, Atlanta, GA, USA.
| | - Matthew T Santore
- Division of Pediatric Surgery, Department of Surgery, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
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Neurotoxicity Outside the Operating Room: An Evolving Challenge for Pediatricians and Pediatric Subspecialists. Acad Pediatr 2022; 22:193-195. [PMID: 34637932 DOI: 10.1016/j.acap.2021.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/10/2021] [Accepted: 10/04/2021] [Indexed: 11/22/2022]
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Lepeltier H, Lepetit A, Gauberti M, Escalard C, Salaun JP, Bénard C, Lesage A, Brossier D, Goyer I. Dexmedetomidine sedation vs. inhaled general anesthesia for pediatric MRI: A retrospective cohort study: Dexmedetomidine sedation vs. inhaled general anesthesia for MRI. Arch Pediatr 2022; 29:213-218. [PMID: 35115217 DOI: 10.1016/j.arcped.2022.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 11/29/2021] [Accepted: 01/13/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The objective of this study was to evaluate the feasibility and the efficacy of a dexmedetomidine-based protocol followed by anesthesiologists unaccustomed to using dexmedetomidine during pediatric magnetic resonance imaging (MRI) examinations compared to conventional halogenated general anesthesia. METHODS This was a single-center retrospective cohort study including patients younger than 18 years who underwent sedation for MRI between August 1, 2018 and March 31, 2019. Patients who received dexmedetomidine were included in the DEX group and patients who had general anesthesia formed the GA group. Patients were matched with a ratio of 2 GA:1 DEX, based on age and type of MRI examination. RESULTS Overall, 78 patients were included (DEX=26; GA=52). Dexmedetomidine was significantly associated with a decrease in invasive ventilation (p<0.001) with no impact on image quality. The sedation failure rate was 42% with dexmedetomidine vs. 0% with general anesthesia (p<0.001). All cases of failure followed the intranasal administration of dexmedetomidine. CONCLUSION Dexmedetomidine seems to be a suitable sedation option for pediatric MRI. It provides an alternative to halogenated general anesthesia with the aim of limiting exposure to conventional anesthetic agents and invasive ventilation.
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Affiliation(s)
- H Lepeltier
- Department of pediatrics, CHU de Caen, Caen, F-14000, France
| | - A Lepetit
- Department of anesthesia, CHU de Caen, F-14000, France
| | - M Gauberti
- Department of radiology, CHU de Caen, F-14000, France
| | - C Escalard
- Department of radiology, CHU de Caen, F-14000, France
| | - J-P Salaun
- Department of anesthesia, CHU de Caen, F-14000, France
| | - C Bénard
- Department of anesthesia, CHU de Caen, F-14000, France
| | - A Lesage
- Department of anesthesia, CHU de Caen, F-14000, France
| | - D Brossier
- University Caen Normandie, School of Medicine, Caen, F-14000, France; Pediatric Intensive Care Unit, CHU de Caen, Caen, F-14000, France.
| | - I Goyer
- Department of pediatrics, CHU de Caen, Caen, F-14000, France; Department of anesthesia, CHU de Caen, F-14000, France; Department of pharmacy, CHU de Caen, F-14000, France
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Decellularised extracellular matrix-based biomaterials for repair and regeneration of central nervous system. Expert Rev Mol Med 2022; 23:e25. [PMID: 34994341 PMCID: PMC9884794 DOI: 10.1017/erm.2021.22] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The central nervous system (CNS), consisting of the brain and spinal cord, regulates the mind and functions of the organs. CNS diseases, leading to changes in neurological functions in corresponding sites and causing long-term disability, represent one of the major public health issues with significant clinical and economic burdens worldwide. In particular, the abnormal changes in the extracellular matrix under various disease conditions have been demonstrated as one of the main factors that can alter normal cell function and reduce the neuroregeneration potential in damaged tissue. Decellularised extracellular matrix (dECM)-based biomaterials have been recently utilised for CNS applications, closely mimicking the native tissue. dECM retains tissue-specific components, including proteoglycan as well as structural and functional proteins. Due to their unique composition, these biomaterials can stimulate sensitive repair mechanisms associated with CNS damages. Herein, we discuss the decellularisation of the brain and spinal cord as well as recellularisation of acellular matrix and the recent progress in the utilisation of brain and spinal cord dECM.
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Prasad RN, Baliga S, Banner J, Cadieux C, Centnar A, Degnan M, Depinet M, Ewing A, Hobbs N, Jiang AL, Manring I, Perlow HK, Rock A, Skinner LB, Tenney L, Walls V, Hiniker SM, Palmer JD. Radiation Therapy without Anesthesia for a 2-Year Old Child using Audio-Visual Assisted Therapeutic Ambience in Radiotherapy (AVATAR). Pract Radiat Oncol 2021; 12:e216-e220. [PMID: 34971793 DOI: 10.1016/j.prro.2021.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 10/19/2022]
Abstract
Radiation therapy (RT) is essential to managing many pediatric malignancies, but can be anxiety, fear, and discomfort provoking for children due to prolonged treatment time, extended course, and restrictive immobilization. Patients under 10 years frequently require daily general anesthesia (GA), which is resource intensive, expensive, potentially toxic, and anxiety/fear provoking. The Audio-Visual Assisted Therapeutic Ambience in Radiotherapy (AVATAR), a video streaming device, has been proposed as an alternative to anesthesia in patients aged 3-10. A pilot study evaluating the efficacy of this novel innovation is accruing, but patients under 3 are ineligible. We simulated a 2-year-old with Stage IV Wilms tumor for bilateral whole lung and left flank irradiation without GA. Using the AVATAR, we attempted to deliver RT to this patient without sedation. Patient anxiety at the time of simulation and at the beginning, middle, and end of the treatment course was characterized using the validated Modified Yale Preoperative Anxiety Score (mYPAS) measurement tool. Although the patient tolerated CT simulation without GA or AVATAR use, his mYPAS of 14/18 indicated significant anxiety. Using the AVATAR, all treatments were delivered without GA; mYPAS scores were 5, 4 (lowest possible), and 4 at the first, mid-course and final treatments, indicating no significant anxiety and a decrease from pre-AVATAR baseline. Without GA, the package time to deliver RT decreased by 66% from 90 to 30 minutes. In summary, we describe an expanded, previously unreported indication for the AVATAR by demonstrating the feasibility of this anesthesia-reducing/omitting approach in appropriate younger patients currently excluded from ongoing trials. The financial and quality of life benefits (including decreased stress, anxiety, toxicity, cost, and appointment time) of AVATAR utilization may be extendable to a younger patient population than previously thought. In older children, prospective validation is ongoing, but additional study in patients under 3 is needed.
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Affiliation(s)
- Rahul N Prasad
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Sujith Baliga
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Julie Banner
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Catherine Cadieux
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Ashley Centnar
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Michael Degnan
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Megan Depinet
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Ashlee Ewing
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Nikki Hobbs
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Alice L Jiang
- Department of Radiation Therapy, Stanford Cancer Institute
| | - Isabel Manring
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Haley K Perlow
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Ashley Rock
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | | | - Lyndsie Tenney
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Vanessa Walls
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | | | - Joshua D Palmer
- Department of Radiation Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA.
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Streuli JC, von Mengershausen U. [Pediatric Palliative Care - When the End Comes with the Beginning]. PRAXIS 2021; 110:907-913. [PMID: 34814717 DOI: 10.1024/1661-8157/a003792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Pediatric Palliative Care - When the End Comes with the Beginning Abstract. Palliative care is not usually associated with childhood and adolescence. Nevertheless, in German-speaking Europe alone, more than 50 000 children live with life-shortening illnesses, and about 5000 children die every year. Palliative care for children and adolescents (PPC) is an attitude that must not be forced on anyone, but must be lived; and, in the case of complex-chronic diseases often over many years. A successful and sustainable implementation of PPC is therefore based on an appreciative collaboration between different teams and the affected families, true to the quadriga presented here of comprehensive symptom control with curiosity, patience, activity and humility. Necessary basics such as the care plan, interprofessional home visits and the round table, plus 24-hour accessibility, are here presented, as well as a triage technique and the advanced care management.
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Affiliation(s)
- Jürg C Streuli
- Spezialisiertes Palliative Care Team, Ostschweizer Kinderspital, St. Gallen
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Comparison of ultrafast wave-controlled aliasing in parallel imaging (CAIPI) magnetization-prepared rapid acquisition gradient echo (MP-RAGE) and standard MP-RAGE in non-sedated children: initial clinical experience. Pediatr Radiol 2021; 51:2009-2017. [PMID: 34268599 DOI: 10.1007/s00247-021-05117-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/21/2021] [Accepted: 06/01/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Fast magnetic resonance imaging (MRI) sequences are advantageous in pediatric imaging as they can lessen child discomfort, decrease motion artifact and improve scanner availability. OBJECTIVE To evaluate the feasibility of an ultrafast wave-CAIPI (controlled aliasing in parallel imaging) MP-RAGE (magnetization-prepared rapid gradient echo) sequence for brain imaging of awake pediatric patients. MATERIALS AND METHODS Each MRI included a standard MP-RAGE sequence and an ultrafast wave-MP-RAGE sequence. Two neuroradiologists evaluated both sequences in terms of artifacts, noise, anatomical contrast and pathological contrast. A predefined 5-point scale was used by two independent pediatric neuroradiologists. A Wilcoxon signed-rank test was used to evaluate the difference between sequences for each variable. RESULTS Twenty-four patients (14 males; mean age: 11.5±4.5 years, range: 1 month to 17.8 years) were included. Wave-CAIPI MP-RAGE provided a 77% reduction in scan time using a 32-channel coil and a 70% reduction using a 20-channel coil. Visualization of the pathology, artifacts and pathological enhancement (including parenchymal, leptomeningeal and dural enhancement) was not significantly different between standard MP-RAGE and wave-CAIPI MP-RAGE (all P>0.05). For central (P<0.001) and peripheral (P<0.001) noise, and the evaluation of the anatomical structures (P<0.001), the observers favored standard MP-RAGE over wave-CAIPI MP-RAGE. CONCLUSION Ultrafast brain imaging with wave-CAIPI MP-RAGE is feasible in awake pediatric patients, providing a substantial reduction in scan time at a cost of subjectively increased image noise.
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Cao Y, Fan L, Li L, Zhou J. Propofol suppresses cell proliferation in gastric cancer cells through NRF2-mediated polyol pathway. Clin Exp Pharmacol Physiol 2021; 49:264-274. [PMID: 34570396 PMCID: PMC9299175 DOI: 10.1111/1440-1681.13595] [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: 06/05/2021] [Revised: 09/15/2021] [Accepted: 09/21/2021] [Indexed: 12/28/2022]
Abstract
Propofol, a widely used short‐acting intravenous sedative agent, has gradually gained attention due to the tumour‐suppressing role and non‐anaesthetic effect. Dysfunction of metabolic reprogramming has been recognised as a well‐documented factor for tumour progression. The aim of this study is to explore the effect of propofol on the polyol pathway in gastric cancer cells. In this study, we found that propofol treatment led to a significant downregulation of cell proliferation in BGC823 and GES‐1 cells, which was attributed to the decreased AR‐mediated polyol pathway. Both aldo‐keto reductase family 1, member B1 (AKR1B1) and AKR1B10 were significantly reduced in BGC823 and GES‐1 cells in response to propofol stimulation, leading to decreased AR activity and sorbitol level. Addition of sorbitol could reverse the inhibitory effect of propofol on cell proliferation. Mechanically, propofol treatment drastically inhibited phosphorylation and nuclear translocation of nuclear factor (erythroid‐derived 2)‐like 2 (NRF2), subsequently decreased the binding of NRF2 to AR promoter. Overexpression of NRF2 resulted in the recovery of AR expression in gastric cancer cell with propofol treatment. Taken together, these finding showed that propofol suppressed cell proliferation in BGC823 and GES‐1 cell through NRF2‐mediated polyol pathway, which would aid the selection of sedation for patients with gastric cancer.
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Affiliation(s)
- Yajun Cao
- Department of Anesthesia, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
| | - Long Fan
- Department of Pharmacy, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
| | - Linkai Li
- Department of Pharmacy, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
| | - Jiexian Zhou
- Department of Anesthesia, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
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13
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Long-term evidence of neonatal anaesthesia neurotoxicity linked to behavioural phenotypes in monkeys: where do we go from here? Br J Anaesth 2021; 127:343-345. [PMID: 34272059 DOI: 10.1016/j.bja.2021.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/07/2021] [Accepted: 06/07/2021] [Indexed: 01/05/2023] Open
Abstract
Whether anaesthesia exposure early in life leads to brain damage with long-lasting structural and behavioural consequences in primates has not been conclusively determined. A study in the British Journal of Anaesthesia by Neudecker and colleagues found that 2 yr after early anaesthesia exposure, monkeys exhibited signs of chronic astrogliosis which correlate with behavioural deficits. Given the increasing frequency of exposure to anaesthetics in infancy in humans, clinical trials are greatly needed to understand how sedative/anaesthetic agents may be impacting brain and behaviour development.
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14
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Jimenez-Tellez N, Iqbal F, Pehar M, Casas-Ortiz A, Rice T, Syed NI. Dexmedetomidine does not compromise neuronal viability, synaptic connectivity, learning and memory in a rodent model. Sci Rep 2021; 11:16153. [PMID: 34373548 PMCID: PMC8352930 DOI: 10.1038/s41598-021-95635-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/21/2021] [Indexed: 02/08/2023] Open
Abstract
Recent animal studies have drawn concerns regarding most commonly used anesthetics and their long-term cytotoxic effects, specifically on the nervous tissue. It is therefore imperative that the search continues for agents that are non-toxic at both the cellular and behavioural level. One such agent appears to be dexmedetomidine (DEX) which has not only been found to be less neurotoxic but has also been shown to protect neurons from cytotoxicity induced by other anesthetic agents. However, DEX's effects on the growth and synaptic connectivity at the individual neuronal level, and the underlying mechanisms have not yet been fully resolved. Here, we tested DEX for its impact on neuronal growth, synapse formation (in vitro) and learning and memory in a rodent model. Rat cortical neurons were exposed to a range of clinically relevant DEX concentrations (0.05-10 µM) and cellular viability, neurite outgrowth, synaptic assembly and mitochondrial morphology were assessed. We discovered that DEX did not affect neuronal viability when used below 10 µM, whereas significant cell death was noted at higher concentrations. Interestingly, in the presence of DEX, neurons exhibited more neurite branching, albeit with no differences in corresponding synaptic puncta formation. When rat pups were injected subcutaneously with DEX 25 µg/kg on postnatal day 7 and again on postnatal day 8, we discovered that this agent did not affect hippocampal-dependent memory in freely behaving animals. Our data demonstrates, for the first time, the non-neurotoxic nature of DEX both in vitro and in vivo in an animal model providing support for its utility as a safer anesthetic agent. Moreover, this study provides the first direct evidence that although DEX is growth permissive, causes mitochondrial fusion and reduces oxygen reactive species production, it does not affect the total number of synaptic connections between the cortical neurons in vitro.
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Affiliation(s)
- Nerea Jimenez-Tellez
- grid.22072.350000 0004 1936 7697Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Canada ,grid.22072.350000 0004 1936 7697Hotchkiss Brain Institute, Calgary, Canada ,grid.413571.50000 0001 0684 7358Alberta Children’s Hospital Research Institute, Calgary, Canada
| | - Fahad Iqbal
- grid.413571.50000 0001 0684 7358Alberta Children’s Hospital Research Institute, Calgary, Canada
| | - Marcus Pehar
- grid.22072.350000 0004 1936 7697Hotchkiss Brain Institute, Calgary, Canada ,grid.413571.50000 0001 0684 7358Alberta Children’s Hospital Research Institute, Calgary, Canada
| | - Alberto Casas-Ortiz
- grid.22072.350000 0004 1936 7697Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Canada ,grid.413571.50000 0001 0684 7358Alberta Children’s Hospital Research Institute, Calgary, Canada
| | - Tiffany Rice
- grid.413571.50000 0001 0684 7358Alberta Children’s Hospital Research Institute, Calgary, Canada ,grid.22072.350000 0004 1936 7697Department of Anesthesiology, Perioperative and Pain Medicine, University of Calgary, Calgary, Canada
| | - Naweed I. Syed
- grid.22072.350000 0004 1936 7697Hotchkiss Brain Institute, Calgary, Canada ,grid.413571.50000 0001 0684 7358Alberta Children’s Hospital Research Institute, Calgary, Canada ,grid.22072.350000 0004 1936 7697Department of Cell Biology and Anatomy, University of Calgary, Calgary, Canada
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15
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Marin JR, Rodean J, Mannix RC, Hall M, Alpern ER, Aronson PL, Chaudhari PP, Cohen E, Freedman SB, Morse RB, Peltz A, Samuels-Kalow M, Shah SS, Simon HK, Neuman MI. Association of Clinical Guidelines and Decision Support with Computed Tomography Use in Pediatric Mild Traumatic Brain Injury. J Pediatr 2021; 235:178-183.e1. [PMID: 33894265 DOI: 10.1016/j.jpeds.2021.04.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/22/2021] [Accepted: 04/14/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To examine whether the presence of clinical guidelines and clinical decision support (CDS) for mild traumatic brain injury (mTBI) are associated with lower use of head computed tomography (CT). STUDY DESIGN We conducted a cross-sectional study of 45 pediatric emergency departments (EDs) in the Pediatric Hospital Information System from 2015 through 2019. We included children discharged with mTBI and surveyed ED clinical directors to ascertain the presence and implementation year of clinical guidelines and CDS. The association of clinical guidelines and CDS with CT use was assessed, adjusting for relevant confounders. As secondary outcomes, we evaluated ED length of stay and rates of 3-day ED revisits and admissions after revisits. RESULTS There were 216 789 children discharged with mTBI, and CT was performed during 20.3% (44 114/216 789) of ED visits. Adjusted hospital-specific CT rates ranged from 11.8% to 34.7% (median 20.5%, IQR 17.3%, 24.3%). Of the 45 EDs, 17 (37.8%) had a clinical guideline, 9 (20.0%) had CDS, and 19 (42.2%) had neither. Compared with EDs with neither a clinical guideline nor CDS, visits to EDs with CDS (aOR 0.52 [0.47, 0.58]) or a clinical guideline (aOR 0.83 [0.78, 0.89]) had lower odds of including a CT for mTBI. ED length of stay and revisit rates did not differ based on the presence of a clinical guideline or CDS. CONCLUSIONS Clinical guidelines for mTBI, and particularly CDS, were associated with lower rates of head CT use without adverse clinical outcomes.
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Affiliation(s)
- Jennifer R Marin
- Division of Pediatric Emergency Medicine, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA.
| | | | - Rebekah C Mannix
- Division of Emergency Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Matt Hall
- Children's Hospital Association, Lenexa, KS
| | - Elizabeth R Alpern
- Division of Emergency Medicine, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Paul L Aronson
- Section of Pediatric Emergency Medicine, Department of Pediatrics, Yale School of Medicine, New Haven, CT
| | - Pradip P Chaudhari
- Division of Emergency and Transport Medicine, Children's Hospital Los Angeles and Keck School of Medicine of the USC, Los Angeles, CA
| | - Eyal Cohen
- Division of Pediatric Medicine and Child Health Evaluative Sciences, The Hospital for Sick Children and Department of Pediatrics, Toronto, Ontario, Canada; Institute of Health Policy, Management & Evaluation, The University of Toronto, Toronto, Ontario, Canada
| | - Stephen B Freedman
- Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Sections of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - Alon Peltz
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA
| | | | - Samir S Shah
- Division of Hospital Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Harold K Simon
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA; Children's Healthcare of Atlanta, Atlanta, GA
| | - Mark I Neuman
- Division of Emergency Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA
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16
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Fan L, Lim Y, Wong GS, Taylor R. Factors affecting successful use of intranasal dexmedetomidine: a cohort study from a national paediatrics tertiary centre. Transl Pediatr 2021; 10:765-772. [PMID: 34012826 PMCID: PMC8107840 DOI: 10.21037/tp-20-358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Use of intranasal (IN) dexmedetomidine for procedural sedation has been reported in recent years. Good patient selection is important to ensure high success rates. We aimed to identify factors that influence the successful use of IN dexmedetomidine in non-invasive investigations. METHODS All paediatric patients who received IN dexmedetomidine for investigations between 01 July 2019 to 01 July 2020 were included. Baseline demographics, time to reach adequate sedation level, duration of sedation, dose, indications for sedation and need for rescue sedatives were recorded. Procedures were classified into "long" or "short" according to completion time. Successful sedation was defined by completion of investigations by IN dexmedetomidine alone. RESULTS Of 105 patients included, median age was 20.0 months, and median weight 11.0 kg. Magnetic resonance imaging (56, 53.3%) was the most common indication. Sixty (57.1%) were successfully sedated using IN dexmedetomidine alone. Automated auditory brainstem response, computerised tomography and mercaptoacetyltriglycine-3 renogram scans had the highest success rate (83.3%, 83.3%, and 100% respectively). On multivariate analysis, short procedures had an adjusted odds ratio of 5.30 (95% CI: 1.69-16.61; P=0.004) compared to long procedures. CONCLUSIONS IN dexmedetomidine is effective for procedural sedation for paediatric patients. The most important predictor for sedation success was indication of sedation and duration of procedures.
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Affiliation(s)
- Lijia Fan
- Department of Paediatrics, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore, Singapore
| | - Yinghao Lim
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Gloria Songmei Wong
- Department of Paediatrics, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore, Singapore
| | - Ryan Taylor
- Department of Paediatrics, Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore, Singapore
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17
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Abstract
BACKGROUND. Anesthetic exposure in children may impact long-term neurocognitive outcomes. Therefore, minimizing pediatric MRI scan time in children under anesthesia and the associated anesthetic exposure is necessary. OBJECTIVE. The purpose of this study was to evaluate pediatric MRI scan time as a predictor of total propofol dose, considering imaging and clinical characteristics as covariates. METHODS. Electronic health records were retrospectively searched to identify MRI examinations performed from 2016 to 2019 in patients 0-18 years old who received propofol anesthetic. Brain; brain and spine; brain and abdomen; and brain, head, and neck MRI examinations were included. Demographic, clinical, and imaging data were extracted for each examination, including anesthesia maintenance phase time, MRI scan time, and normalized propofol dose. MRI scan time and propofol dose were compared between groups using a t test. A multiple linear regression with backward selection (threshold, p < .05) was used to evaluate MRI scan time as a predictor of total propofol dose, adjusting for sex, age, time between scan and study end, body part, American Society of Anesthesiologists (ASA) classification, diagnosis, magnet strength, and IV contrast medium administration as covariates. RESULTS. A total of 501 examinations performed in 426 patients (172 girls, 254 boys; mean age, 6.55 ± 4.59 [SD] years) were included. Single body part examinations were shorter than multiple body part examinations (mean, 52.7 ± 18.4 vs 89.3 ± 26.4 minutes) and required less propofol (mean, 17.7 ± 5.7 vs 26.1 ± 7.7 mg/kg; all p < .001). Among single body part examinations, a higher ASA classification, oncologic diagnosis, 1.5-T magnet, and IV contrast medium administration were associated with longer MRI scan times (all p ≤ .009) and higher propofol exposure (all p ≤ .005). In multivariable analysis, greater propofol exposure was predicted by MRI scan time (mean dose per minute of examination, 0.178 mg/kg; 95% CI, 0.155-0.200; p < .001), multiple body part examination (p = .04), and IV contrast medium administration (p = .048); lower exposure was predicted by 3-T magnet (p = .04). CONCLUSION. Anesthetic exposure during pediatric MRI can be quantified and predicted based on imaging and clinical variables. CLINICAL IMPACT. This study serves as a valuable baseline for future efforts to reduce anesthetic doses and scan times in pediatric MRI.
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18
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Cai X, Li Y, Zheng X, Hu R, Li Y, Xiao L, Wang Z. Propofol suppresses microglial phagocytosis through the downregulation of MFG-E8. J Neuroinflammation 2021; 18:18. [PMID: 33422097 PMCID: PMC7796553 DOI: 10.1186/s12974-020-02061-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 12/16/2020] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Microglia are highly motile phagocytic cells in the healthy brain with surveillance and clearance functions. Although microglia have been shown to engulf cellular debris following brain insult, less is known about their phagocytic function in the absence of injury. Propofol can inhibit microglial activity, including phagocytosis. Milk fat globule epidermal growth factor 8 (MFG-E8), as a regulator of microglia, plays an essential role in the phagocytic process. However, whether MFG-E8 affects the alteration of phagocytosis by propofol remains unknown. METHODS Microglial BV2 cells were treated with propofol, with or without MFG-E8. Phagocytosis of latex beads was evaluated by flow cytometry and immunofluorescence. MFG-E8, p-AMPK, AMPK, p-Src, and Src levels were assessed by western blot analysis. Compound C (AMPK inhibitor) and dasatinib (Src inhibitor) were applied to determine the roles of AMPK and Src in microglial phagocytosis under propofol treatment. RESULTS The phagocytic ability of microglia was significantly decreased after propofol treatment for 4 h (P < 0.05). MFG-E8 production was inhibited by propofol in a concentration- and time-dependent manner (P < 0.05). Preadministration of MFG-E8 dose-dependently (from 10 to 100 ng/ml) reversed the suppression of phagocytosis by propofol (P < 0.05). Furthermore, the decline in p-AMPK and p-Src levels induced by propofol intervention was reversed by MFG-E8 activation (P < 0.05). Administration of compound C (AMPK inhibitor) and dasatinib (Src inhibitor) to microglia blocked the trend of enhanced phagocytosis induced by MFG-E8 (P < 0.05). CONCLUSIONS These findings reveal the intermediate role of MFG-E8 between propofol and microglial phagocytic activity. Moreover, MFG-E8 may reverse the suppression of phagocytosis induced by propofol through the regulation of the AMPK and Src signaling pathways.
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Affiliation(s)
- Xiaoying Cai
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Ying Li
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiaoyang Zheng
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Rong Hu
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Yingyuan Li
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Liangcan Xiao
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China.
| | - Zhongxing Wang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China.
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19
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Gabelloni M, Faggioni L, Accogli S, Aringhieri G, Neri E. Pulmonary sequestration: What the radiologist should know. Clin Imaging 2020; 73:61-72. [PMID: 33310586 DOI: 10.1016/j.clinimag.2020.11.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 11/13/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022]
Abstract
Pulmonary sequestration consists of a nonfunctioning mass of lung tissue, either sharing the pleural envelope of the normal lung (intralobar) or with its own pleura (extralobar), lacking normal communication with the tracheobronchial tree and receiving its arterial supply by one or more systemic vessels. It is the second most common congenital lung anomaly according to pediatric case series, but its real prevalence is likely to be underestimated, and imaging plays a key role in the diagnosis and treatment management of the condition and its potential complications. We will give a brief overview of the pathophysiology, clinical presentation and imaging findings of intra- and extralobar pulmonary sequestration, with particular reference to multidetector computed tomography as part of a powerful and streamlined diagnostic approach.
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Affiliation(s)
- Michela Gabelloni
- Diagnostic and Interventional Radiology, Department of Translational Research, University of Pisa, Via Roma, 67, 56126 Pisa, Italy
| | - Lorenzo Faggioni
- Diagnostic and Interventional Radiology, Department of Translational Research, University of Pisa, Via Roma, 67, 56126 Pisa, Italy.
| | - Sandra Accogli
- Diagnostic and Interventional Radiology, Department of Translational Research, University of Pisa, Via Roma, 67, 56126 Pisa, Italy
| | - Giacomo Aringhieri
- Diagnostic and Interventional Radiology, Department of Translational Research, University of Pisa, Via Roma, 67, 56126 Pisa, Italy
| | - Emanuele Neri
- Diagnostic and Interventional Radiology, Department of Translational Research, University of Pisa, Via Roma, 67, 56126 Pisa, Italy
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20
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Liu X, Ji J, Zhao GQ. General anesthesia affecting on developing brain: evidence from animal to clinical research. J Anesth 2020; 34:765-772. [PMID: 32601887 PMCID: PMC7511469 DOI: 10.1007/s00540-020-02812-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 06/06/2020] [Indexed: 11/29/2022]
Abstract
As the recent update of General anaesthesia compared to spinal anaesthesia (GAS) studies has been published in 2019, together with other clinical evidence, the human studies provided an overwhelming mixed evidence of an association between anaesthesia exposure in early childhood and later neurodevelopment changes in children. Pre-clinical studies in animals provided strong evidence on how anaesthetic and sedative agents (ASAs) causing neurotoxicity in developing brain and deficits in long-term cognitive functions. However pre-clinical results cannot translate to clinical practice directly. Three well designed large population-based human studies strongly indicated that a single brief exposure to general anesthesia (GAs) is not associated with any long-term neurodevelopment deficits in children's brain. Multiple exposure might cause decrease in processing speed and motor skills of children. However, the association between GAs and neurodevelopment in children is still inconclusive. More clinical studies with larger scale observations, randomized trials with longer duration exposure of GAs and follow-ups, more sensitive outcome measurements, and strict confounder controls are needed in the future to provide more conclusive and informative data. New research area has been developed to contribute in finding solutions for clinical practice as attenuating the neurotoxic effect of ASAs. Xenon and Dexmedetomidine are already used in clinical setting as neuroprotection and anaesthetic sparing-effect, but more research is still needed.
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Affiliation(s)
- Xinyue Liu
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jing Ji
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Guo-Qing Zhao
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, China.
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21
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Applications of Pediatric Body CT Angiography: What Radiologists Need to Know. AJR Am J Roentgenol 2020; 214:1019-1030. [DOI: 10.2214/ajr.19.22274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Evolution of the Pediatric Intensivist Sedation Service. CURRENT PEDIATRICS REPORTS 2019. [DOI: 10.1007/s40124-019-00200-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Kamat PP, Sulton C, Kudchadkar SR, McCracken CE, Nguyen KM, Simoneaux SF, Mallory MD, Simon HK. Procedural Sedation Outside the Operating Room and Potential Neurotoxicity: Analysis of an At-Risk Pediatric Population. Acad Pediatr 2019; 19:978-984. [PMID: 30858081 DOI: 10.1016/j.acap.2019.02.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/08/2019] [Accepted: 02/10/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To determine the characteristics of children who met the risk criteria for potential neurotoxicity defined by the US Food and Drug Administration (FDA; 2016 warning) in a procedural sedation (PS) service. STUDY DESIGN A single-center retrospective review of all infants and children aged <3 years receiving PS outside the operating room from 2014 to 2016. Demographics, duration of, and the reason for PS were analyzed. RESULTS A total of 2950 patients with 3653 sedation encounters were included. Median age was 19 (range, 11-26) months. Most PS (86.4%) were for magnetic resonance imaging (MRI). The median number of sedation procedures per patient was 1 (25th-75th: 1-7), and median duration of sedation was 72 minutes (25th-75th: 55-98 minutes). Forty patients (1.4%) required prolonged sedations >3 hours, in a single encounter (median, [25th-75th] of 196 minutes [185-214 minutes]), and 298 patients (10.1%) had multiple sedation exposures during the study period. Overall, 327 patients, 11.1% (95% confidence interval, 10.0%-12.3%) required repeated and/or prolonged sedation. The most common reasons for repeated or prolonged sedation were MRI of the brain and neurologic concerns. CONCLUSIONS Multiple and prolonged PS commonly occurs outside the operating room in this young and potentially vulnerable population. Although certain imaging cannot be avoided, other cases may have the potential to be delayed until the child is >3 years old or to have alternate imaging that may not require prolonged PS. Family and provider awareness of the FDA warnings regarding potential neurotoxicity of sedation in all settings, both inside and outside the operating room, is critical.
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Affiliation(s)
- Pradip P Kamat
- Children's Healthcare of Atlanta at Egleston, Ga (PP Kamat, C Sulton, CE McCracken, and HK Simon); Departments of Pediatrics, Division of Critical Care Medicine (PP Kamat),.
| | - Carmen Sulton
- Children's Healthcare of Atlanta at Egleston, Ga (PP Kamat, C Sulton, CE McCracken, and HK Simon); Pediatrics and Emergency Medicine (C Sulton and HK Simon)
| | - Sapna R Kudchadkar
- Department of Anesthesiology and Critical Care Medicine; Department of Pediatrics, and Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Charlotte R. Bloomberg Children's Center, Baltimore, Md (SR Kudchadkar)
| | - Courtney E McCracken
- Children's Healthcare of Atlanta at Egleston, Ga (PP Kamat, C Sulton, CE McCracken, and HK Simon); Pediatrics (CE McCracken and KM Nguyen)
| | | | - Stephen F Simoneaux
- and Pediatric Radiology and Imaging Sciences (SF Simoneaux), Emory University School of Medicine, Atlanta, Ga
| | - Michael D Mallory
- Pediatric Emergency Medicine Associates, Children's Healthcare of Atlanta, Ga (MD Mallory)
| | - Harold K Simon
- Children's Healthcare of Atlanta at Egleston, Ga (PP Kamat, C Sulton, CE McCracken, and HK Simon); Pediatrics and Emergency Medicine (C Sulton and HK Simon)
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McClelland S, Overton KW, Overshiner B, Bush K, Loo BW, Skinner LB, Watson GA, Holmes JA, Hiniker SM, Maxim PG. Cost Analysis of Audiovisual-Assisted Therapeutic Ambiance in Radiation Therapy (AVATAR)-Aided Omission of Anesthesia in Radiation for Pediatric Malignancies. Pract Radiat Oncol 2019; 10:e91-e94. [PMID: 31574319 DOI: 10.1016/j.prro.2019.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/29/2019] [Accepted: 09/06/2019] [Indexed: 01/16/2023]
Abstract
PURPOSE Because children cannot reliably remain immobile during radiation therapy (RT) for cancer anatomy targeting requiring millimeter precision, daily anesthesia plays a large role in each RT session. Unfortunately, anesthesia is a source of financial burden for patients' families and is invasive and traumatic. This study attempts to assess the cost-savings benefit of audiovisual-assisted therapeutic ambiance in radiation therapy (AVATAR)-aided omission of pediatric anesthesia in RT. METHODS AND MATERIALS The baseline time of anesthesia during RT was derived from documented anesthesia billing time during RT simulation at our institution and from the published literature. Current Procedural Terminology and relative value unit codes encompassing anesthesia-related charges from radiation oncology and anesthesia were analyzed in concert with this value to calculate the total cost of pediatric anesthesia per RT session. RESULTS The mean number of RT fractions administered per patient with AVATAR-directed anesthesia omission at our institution was 19.0, similar to the 17.6 previously reported. At a mean anesthesia time exceeding 30 minutes (with mean RT duration of 4 weeks), the cost of pediatric anesthesia per RT fraction in non-AVATAR sessions was $1,904.35, yielding a total RT treatment anesthesia cost of $38,087.00 per patient (including simulation). Patients at our institution were not billed for AVATAR-assisted RT. CONCLUSIONS The ability of AVATAR to obviate the need for daily anesthesia in pediatric RT provides substantial cost-savings. These findings argue for increased utilization of AVATAR and for analyses of RT targeting the accuracy of AVATAR versus conventional anesthesia-guided treatment of pediatric malignancies.
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Affiliation(s)
- Shearwood McClelland
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana.
| | - Kent W Overton
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Brian Overshiner
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Karl Bush
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, California
| | - Billy W Loo
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, California
| | - Lawrie B Skinner
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, California
| | - Gordon A Watson
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jordan A Holmes
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Susan M Hiniker
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, California
| | - Peter G Maxim
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
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Yi YG, Kim K, Shin HI, Bang MS, Kim HS, Choi J, Wang KC, Kim SK, Lee JY, Phi JH, Seo HG. Feasibility of intraoperative monitoring of motor evoked potentials obtained through transcranial electrical stimulation in infants younger than 3 months. J Neurosurg Pediatr 2019; 23:758-766. [PMID: 30875681 DOI: 10.3171/2019.1.peds18674] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/21/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE This study aimed to investigate the feasibility and safety of intraoperative motor evoked potential (MEP) monitoring in infants less than 3 months of age. METHODS The authors investigated 25 cases in which infants younger than 3 months (mean age 72.8 days, range 39-87) underwent neurosurgery between 2014 and 2017. Myogenic MEPs were obtained through transcranial electrical stimulation. In all cases, surgery was performed under total intravenous anesthesia, maintained with remifentanil and propofol. RESULTS MEPs were documented in 24 infants, the sole exception being 1 infant who was lethargic and had 4-limb weakness before surgery. The mean stimulation intensity maintained during monitoring was 596 ± 154 V (range 290-900 V). In 19 of 24 infants MEP signals remained at ≥ 50% of the baseline amplitude throughout the operation. Among 5 cases with a decrease in intraoperative MEP amplitude, the MEP signal was recovered in one during surgery, and in the other case a neurological examination could not be performed after surgery. In the other 3 cases, 2 infants had relevant postoperative weakness and the other did not show postoperative neurological deficits. Postoperative weakness was not observed in any of the 20 infants who had no deterioration (n = 19) or only temporary deterioration (n = 1) in MEP signal during surgery. CONCLUSIONS Transcranial electrical MEPs could be implemented during neurosurgery in infants between 1 and 3 months of age. Intraoperative MEP monitoring may be a safe adjunct for neurosurgical procedures in these very young patients.
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Affiliation(s)
| | | | | | | | | | | | - Kyu-Chang Wang
- 3Neurosurgery, Seoul National University College of Medicine and Seoul National University Hospital; and.,4Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Seung-Ki Kim
- 3Neurosurgery, Seoul National University College of Medicine and Seoul National University Hospital; and.,4Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Ji Yeoun Lee
- 3Neurosurgery, Seoul National University College of Medicine and Seoul National University Hospital; and.,4Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Ji Hoon Phi
- 3Neurosurgery, Seoul National University College of Medicine and Seoul National University Hospital; and.,4Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Republic of Korea
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