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Murillo C, Weil AB, Moore GE, Kreuzer M, Ko JC. Electroencephalographic and Cardiovascular Changes Associated with Propofol Constant Rate of Infusion Anesthesia in Young Healthy Dogs. Animals (Basel) 2023; 13:ani13040664. [PMID: 36830451 PMCID: PMC9951736 DOI: 10.3390/ani13040664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
This study aimed to evaluate electroencephalography (EEG) and cardiovascular changes associated with propofol constant rate of infusion (CRI) anesthesia in dogs. Six dogs were each given propofol CRI to induce different anesthetic phases including induction (1 mg/kg/min for 10 min), and decremental maintenance doses of 2.4 mg per kg per min, 1.6 mg per kg per min, and 0.8 mg per kg per minute over 45 min. Processed EEG indices including patient state index (PSI), (burst) suppression ratio (SR), and spectral edge frequency (95%) were obtained continuously until the dogs recovered to sternal recumbency. The dogs were intubated and ventilated. Cardiovascular and EEG index values were compared between anesthetic phases. The PSI, SR, mean arterial blood pressure, and subjective anesthetic depth scores were highly correlated throughout anesthetic depth changes. The PSI decreased from 85.0 ± 17.3 at awake to 66.0 ± 29.0 at induction, and then sharply reduced to 19.7 ± 23.6 during maintenance and returned to 61.5 ± 19.2 at extubation. The SR increased from 15.4 ± 30.9% at induction to 70.9 ± 39.8% during maintenance and decreased to 3.4 ± 8.9% at extubation. We concluded that EEG indices can be used to aid in tracking ongoing brain state changes during propofol anesthesia in dogs.
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Affiliation(s)
- Carla Murillo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Ann B. Weil
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - George E. Moore
- Department of Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Matthias Kreuzer
- Department of Anesthesiology and Intensive Care, School of Medicine, Technical University of Munich, 80333 München, Germany
| | - Jeff C. Ko
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
- Correspondence:
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Panchamia JK, Amundson AW, Demirci O, Braksick SA, Wijdicks EF. A Case Report of “Propofol Frenzy”: Anesthetic Considerations for a Severe Propofol-Induced Neuroexcitation Reaction. A A Pract 2022; 16:e01569. [DOI: 10.1213/xaa.0000000000001569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Hasan ZA, Abdul Razzak RL, Alzoubi KH, Marwani AM. Effects of intravenous administration of propofol and midazolam on pentylenetetrazole kindled seizures in rats. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2021. [DOI: 10.1080/25765299.2021.1958491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Zuheir A. Hasan
- Department of Physiology, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
- Department of Basic Medical Sciences, Faculty of Medicine, The Hashemite University, Jordan
| | - Rima L. Abdul Razzak
- Department of Physiology, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Karem H. Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, UAE
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Ammar M. Marwani
- Animal Facility Unit, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
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Abstract
Many medications and toxins may induce central nervous system (CNS) depression. Even when the intention is to induce CNS depression, other nervous system adverse effects may occur, such as with anesthetics. Pain medications produce characteristic CNS toxicities. Sedative hypnotics may induce altered mentation among systemic toxicities. Stimulants may mimic coma when discontinued abruptly. Acute and chronic carbon monoxide poisoning can lead to altered mental status and prolonged cognitive difficulties. Some medications and environmental toxins can mimic brain death. High clinical suspicion and early recognition of these effects is vital to treatment, most of which is supportive.
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Affiliation(s)
- Monica Krause
- Department of Neurology, Mayo Clinic College of Medicine, 200 First Street Southwest, Rochester, MN 55905, USA.
| | - Sara Hocker
- Division of Neurocritical Care and Hospital Neurology, Department of Neurology, Mayo Clinic College of Medicine, 200 First Street Southwest, Rochester, MN 55905, USA
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Pantelakis L, Alvarez V, Gex G, Godio M. Severe Neuroexcitatory Reaction: A Rare and Underrecognized Life-Threatening Complication of Propofol-Induced Anesthesia. Neurohospitalist 2020; 11:49-53. [PMID: 33868557 DOI: 10.1177/1941874420929536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We describe a case of severe neuroexcitatory reaction with hyperthermia after administration of propofol in a 43-year-old patient suspected of a relapse of sarcoidosis who underwent bronchoscopy. This resulted in a lengthy stay in intensive care and long-term neuropsychological impairment. A review of the literature shows that severe neuroexcitatory symptoms (seizure-like phenomena, abnormal hypertonic, and/or jerky movements) occur rarely after propofol administration and may be life-threatening. Due to the paucity of data, the treatment is mostly empirical. The diagnosis can also be delayed owing to underrecognition. We conclude that health practitioners who frequently use propofol should be aware of this specific manifestation of drug toxicity, which albeit rare can be devastating for the patient.
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Affiliation(s)
- Linos Pantelakis
- Departement of Intensive Care Medicine, Hôpital du Valais, Sion, Switzerland
| | - Vincent Alvarez
- Department of Neurology, Hôpital du Valais, Sion, Switzerland.,Department of Clinical Neurosciences, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Grégoire Gex
- Department of Pulmonary Medicine, Hôpital du Valais, Sion, Switzerland.,Department of Pulmonary Medicine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Manoëlle Godio
- Departement of Intensive Care Medicine, Hôpital du Valais, Sion, Switzerland
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Gandhi SE, Newman EJ, Marshall VL. Emergency presentations of movement disorders. Pract Neurol 2020; 20:practneurol-2019-002277. [PMID: 32299832 DOI: 10.1136/practneurol-2019-002277] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2020] [Indexed: 11/03/2022]
Abstract
Movement disorders are typically perceived as being gradually progressive conditions that are managed in outpatient settings. However, they may manifest de novo with an acute severe phenotype or an acute decompensation. A movement disorder becomes an emergency when it evolves acutely or subacutely over hours to days; delays in its diagnosis and treatment may cause significant morbidity and mortality. Here we address the clinical presentation, diagnosis and management of those movement disorder emergencies that are principally encountered in emergency departments, in acute receiving units or in intensive care units. We provide practical guidance for management in the acute setting where there are several treatable causes not to be missed. The suggested medication doses are predominantly based on expert opinion due to limited higher-level evidence. In spite of the rarity of movement disorder emergencies, neurologists need to be familiar with the phenomenology, potential causes and treatments of these conditions. Movement disorder emergencies divide broadly into two groups: hypokinetic and hyperkinetic, categorised according to their phenomenology. Most acute presentations are hyperkinetic and some are mixed.
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Affiliation(s)
- Sacha E Gandhi
- Neurology, Queen Elizabeth University Hospital, Institute of Neurological Sciences, Glasgow, UK
| | - Edward J Newman
- Neurology, Queen Elizabeth University Hospital, Institute of Neurological Sciences, Glasgow, UK
| | - Vicky L Marshall
- Neurology, Queen Elizabeth University Hospital, Institute of Neurological Sciences, Glasgow, UK
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Abstract
We provide a synopsis of innovative research, recurring themes, and novel experimental findings pertinent to the care of neurosurgical patients and critically ill patients with neurological diseases. We cover the following broad topics: general neurosurgery, spine surgery, stroke, traumatic brain injury, monitoring, and anesthetic neurotoxicity.
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