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Zimmerman JT, Hanson C, Iardino A. Haemophagocytic lymphohistiocytosis (HLH) secondary to disseminated histoplasmosis infection in a patient with HIV. BMJ Case Rep 2024; 17:e259484. [PMID: 39159978 DOI: 10.1136/bcr-2023-259484] [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: 08/21/2024] Open
Abstract
A male in his 30s who was recently diagnosed with HIV arrived at the emergency department exhibiting an altered mental state and acute respiratory distress. Initial laboratory tests revealed a high anion gap metabolic acidosis, elevated liver enzyme levels and bicytopenia. A CT scan identified a miliary pattern. Bronchoscopy with bronchoalveolar lavage displayed epithelial and inflammatory cells. However, subsequent tests ruled out the presence of fungi, Pneumocystis organisms, malignancies, granulomas and viral inclusions. Broad-spectrum antibiotics with emphasis on Mycobacterium tuberculosis and antifungal treatments were administered. The regimen was adjusted after a positive urine test for the Histoplasma antigen.The patient later manifested signs and symptoms, including increased ferritin level, fever, splenomegaly, diminished natural killer cell function and heightened interleukin-2 receptor levels, confirming haemophagocytic lymphohistiocytosis. Given the patient's gravely decompensated state, the treatment incorporated dexamethasone, and the patient's vasopressor-resistant septic shock was addressed with methylene blue.
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Affiliation(s)
- Joel Thomas Zimmerman
- Internal Medicine, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, USA
| | - Courtney Hanson
- Internal Medicine, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, USA
| | - Alfredo Iardino
- Critical Care, Pulmonology, CHI St Alexius Health Bismarck Medical Center, Bismarck, North Dakota, USA
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2
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Fei DS, Gao Y, Bao XJ, Tang YJ, Lin YL, Xu JX, Zhang JN, Liu BW, Kang K. Acquired methemoglobinemia in a third trimester puerpera and her premature infant with sodium nitrite poisoning: A case report. World J Clin Cases 2024; 12:5151-5158. [DOI: 10.12998/wjcc.v12.i22.5151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/25/2024] [Accepted: 06/05/2024] [Indexed: 06/30/2024] Open
Abstract
BACKGROUND The common cause of sodium nitrite poisoning has shifted from previous accidental intoxication by exposure or ingestion of contaminated water and food to recent alarming intentional intoxication as an employed method of suicide/exit. The subsequent formation of methemoglobin (MetHb) restricts oxygen transport and utilization in the body, resulting in functional hypoxia at the tissue level. In clinical practice, a mismatch of cyanotic appearance and oxygen partial pressure usually contributes to the identification of methemoglobinemia. Prompt recognition of characteristic mismatch and accurate diagnosis of sodium nitrite poisoning are prerequisites for the implementation of standardized systemic interventions.
CASE SUMMARY A pregnant woman was admitted to the Department of Critical Care Medicine at the First Affiliated Hospital of Harbin Medical University due to consciousness disorders and drowsiness 2 h before admission. Subsequently, she developed vomiting and cyanotic skin. The woman underwent orotracheal intubation, invasive mechanical ventilation (IMV), and correction of internal environment disturbance in the ICU. Her premature infant was born with a higher-than-normal MetHb level of 3.3%, and received detoxification with methylene blue and vitamin C, supplemental vitamin K1, an infusion of fresh frozen plasma, as well as respiratory support via orotracheal intubation and IMV. On day 3 after admission, the puerpera regained consciousness, evacuated the IMV, and resumed enteral nutrition. She was then transferred to the maternity ward 24 h later. On day 7 after admission, the woman recovered and was discharged without any sequelae.
CONCLUSION MetHb can cross through the placental barrier. Level of MetHb both reflects severity of the sodium nitrite poisoning and serves as feedback on therapeutic effectiveness.
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Affiliation(s)
- Dong-Sheng Fei
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Yang Gao
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Harbin Medical University, Harbin 150027, Heilongjiang Province, China
| | - Xue-Jiao Bao
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Yu-Jia Tang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Yi-Lu Lin
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Harbin Medical University, Harbin 150027, Heilongjiang Province, China
| | - Jia-Xi Xu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Jia-Ning Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Bo-Wen Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Kai Kang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
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Arias-Ortiz J, Vincent JL. Administration of methylene blue in septic shock: pros and cons. Crit Care 2024; 28:46. [PMID: 38365828 PMCID: PMC10870439 DOI: 10.1186/s13054-024-04839-w] [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: 12/05/2023] [Accepted: 02/13/2024] [Indexed: 02/18/2024] Open
Abstract
Septic shock typically requires the administration of vasopressors. Adrenergic agents remain the first choice, namely norepinephrine. However, their use to counteract life-threatening hypotension comes with potential adverse effects, so that non-adrenergic vasopressors may also be considered. The use of agents that act through different mechanisms may also provide an advantage. Nitric oxide (NO) is the main driver of the vasodilation that leads to hypotension in septic shock, so several agents have been tested to counteract its effects. The use of non-selective NO synthase inhibitors has been of questionable benefit. Methylene blue, an inhibitor of soluble guanylate cyclase, an important enzyme involved in the NO signaling pathway in the vascular smooth muscle cell, has also been proposed. However, more than 25 years since the first clinical evaluation of MB administration in septic shock, the safety and benefits of its use are still not fully established, and it should not be used routinely in clinical practice until further evidence of its efficacy is available.
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Affiliation(s)
- Julian Arias-Ortiz
- Department of Intensive Care, Calderón Guardia Hospital, Universidad de Costa Rica, San José, Costa Rica
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik 808, Brussels, Belgium.
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4
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Hazekamp C, Schmitz Z, Scoccimarro A. Methylene Blue-Induced Serotonin Toxicity: Case Files of the Medical Toxicology Fellowship at the New York City Poison Control Center. J Med Toxicol 2024; 20:54-58. [PMID: 37828274 PMCID: PMC10774363 DOI: 10.1007/s13181-023-00972-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/07/2023] [Accepted: 09/14/2023] [Indexed: 10/14/2023] Open
Affiliation(s)
- Corey Hazekamp
- Department of Emergency Medicine, NYC H+H/Lincoln, 234 E. 149thStreet Bronx, New York, NY, 10451, USA.
| | - Zach Schmitz
- New York City Poison Control Center NYU Langone Toxicology Fellowship, New York, NY, USA
| | - Anthony Scoccimarro
- Department of Emergency Medicine, NYC H+H/Lincoln, 234 E. 149thStreet Bronx, New York, NY, 10451, USA
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5
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Sokolov S, Zyrina A, Akimov S, Knorre D, Severin F. Toxic Effects of Penetrating Cations. MEMBRANES 2023; 13:841. [PMID: 37888013 PMCID: PMC10608470 DOI: 10.3390/membranes13100841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/08/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
As mitochondria are negatively charged organelles, penetrating cations are used as parts of chimeric molecules to deliver specific compounds into mitochondria. In other words, they are used as electrophilic carriers for such chemical moieties as antioxidants, dyes, etc., to transfer them inside mitochondria. However, unmodified penetrating cations affect different aspects of cellular physiology as well. In this review, we have attempted to summarise the data about the side effects of commonly used natural (e.g., berberine) and artificial (e.g., tetraphenylphosphonium, rhodamine, methylene blue) penetrating cations on cellular physiology. For instance, it was shown that such types of molecules can (1) facilitate proton transport across membranes; (2) react with redox groups of the respiratory chain; (3) induce DNA damage; (4) interfere with pleiotropic drug resistance; (5) disturb membrane integrity; and (6) inhibit enzymes. Also, the products of the biodegradation of penetrating cations can be toxic. As penetrating cations accumulate in mitochondria, their toxicity is mostly due to mitochondrial damage. Mitochondria from certain types of cancer cells appear to be especially sensitive to penetrating cations. Here, we discuss the molecular mechanisms of the toxic effects and the anti-cancer activity of penetrating cations.
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Affiliation(s)
- Svyatoslav Sokolov
- Department of Molecular Energetics of Microorganisms, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 1–40 Leninskie Gory, 119991 Moscow, Russia; (S.S.); (D.K.)
| | - Anna Zyrina
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, Premises 8, Bldg. 1, Village of Institute of Poliomyelitis, Settlement “Moskovskiy”, 108819 Moscow, Russia;
| | - Sergey Akimov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 LeninskiyProspekt, 119071 Moscow, Russia;
| | - Dmitry Knorre
- Department of Molecular Energetics of Microorganisms, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 1–40 Leninskie Gory, 119991 Moscow, Russia; (S.S.); (D.K.)
| | - Fedor Severin
- Department of Molecular Energetics of Microorganisms, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 1–40 Leninskie Gory, 119991 Moscow, Russia; (S.S.); (D.K.)
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Rajbanshi LK, Bajracharya A, Arjyal B, Devkota D. Can Use of Intravenous Methylene Blue Improve the Hemodynamics and Outcome of the Patients with Refractory Septic Shock? An Observational Study. Indian J Crit Care Med 2023; 27:669-674. [PMID: 37719353 PMCID: PMC10504645 DOI: 10.5005/jp-journals-10071-24535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023] Open
Abstract
Introduction Refractory shock, which fails to respond to conventional vasopressor therapy, is a common complication of sepsis. Methylene blue has emerged as a potential adjunctive treatment option for reversing refractory shock in sepsis. The aim of this study was to evaluate the impact of intravenous methylene blue infusion on hemodynamic improvement and mortality in patients with refractory shock. Methodology This was an observational prospective study for the duration of six months conducted at intensive care a medical college and teaching hospital including 76 patients with a diagnosis of septic shock requiring vasopressor therapy. Intravenous (IV) methylene blue was infused as a bolus dose with 2 mg/kg dose in 20 minutes and its response to mean arterial blood pressure, decrease in vasopressor therapy, lactate level, and urine output was recorded in next 2 hours. Patients with improvement in mean arterial pressure (MAP) by 10% or decrease in vasopressor therapy in the next 2 hours were leveled as responder. The length of intensive care unit (ICU) stay, duration of mechanical ventilation, incidence of acute kidney injury (AKI), and mortality were compared between responder and non-responder. Results A total of 76 patients with refractory shock were included in the study. With the use of IV methylene blue, 41 (53.9%) patients showed significant improvement in MAP within 2 hours (70.17 ± 8.30 vs 64.28 ± 11.84, p = 0.005). Responders were 4.019 times more likely to have vasopressor-free time within 24 hours (18.4% vs 5.3%, p = 0.020, odds ratio 4.019, 95% confidence interval, 1.180-13.682). However, there was no significant difference in terms of mortality, length of ICU stay, ventilator free days, and incidence of AKI. In the responder group, there was a significant increase in the MAP and decrease in vasopressor requirement pre- and post-infusion of methylene blue (p < 0.05). Responder had shorter vasopressor-free days as compared with non-responder (5.34 vs 6.79, p = 0.008) while the mean survival time was longer with responders (21.97 vs 15.93 days, p = 0.024). Conclusion The use of IV methylene blue in refractory shock as an adjuvant therapy significantly improved the mean arterial blood pressure and decreased the requirement of vasopressor therapy as well as improvement in the survival time. However, there was no change in the mortality, length of ICU stay, ventilator-free days, or incidence of AKI in the patients. How to cite this article Rajbanshi LK, Bajracharya A, Arjyal B, Devkota D. Can Use of Intravenous Methylene Blue Improve the Hemodynamics and Outcome of the Patients with Refractory Septic Shock? An Observational Study. Indian J Crit Care Med 2023;27(9):669-674.
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Affiliation(s)
- Lalit Kumar Rajbanshi
- Department of Anesthesiology and Critical Care, Birat Medical College and Teaching Hospital, Biratnagar, Kathmandu, Nepal
| | - Akriti Bajracharya
- Department of Anesthesiology and Critical Care, Birat Medical College and Teaching Hospital, Biratnagar, Kathmandu, Nepal
| | - Batsalya Arjyal
- Department of Anesthesiology and Critical Care, Birat Medical College and Teaching Hospital, Biratnagar, Kathmandu, Nepal
| | - Dikshya Devkota
- Department of Anesthesiology and Critical Care, Birat Medical College and Teaching Hospital, Biratnagar, Kathmandu, Nepal
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Bansal M, Mehta A, Machanahalli Balakrishna A, Kalyan Sundaram A, Kanwar A, Singh M, Vallabhajosyula S. RIGHT VENTRICULAR DYSFUNCTION IN SEPSIS: AN UPDATED NARRATIVE REVIEW. Shock 2023; 59:829-837. [PMID: 36943772 DOI: 10.1097/shk.0000000000002120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
ABSTRACT Sepsis is a multisystem disease process, which constitutes a significant public health challenge and is associated with high morbidity and mortality. Among other systems, sepsis is known to affect the cardiovascular system, which may manifest as myocardial injury, arrhythmias, refractory shock, and/or septic cardiomyopathy. Septic cardiomyopathy is defined as the reversible systolic and/or diastolic dysfunction of one or both ventricles. Left ventricle dysfunction has been extensively studied in the past, and its prognostic role in patients with sepsis is well documented. However, there is relatively scarce literature on right ventricle (RV) dysfunction and its role. Given the importance of timely detection of septic cardiomyopathy and its bearing on prognosis of patients, the role of RV dysfunction has come into renewed focus. Hence, through this review, we sought to describe the pathophysiology of RV dysfunction in sepsis and what have we learnt so far about its multifactorial nature. We also elucidate the roles of different biomarkers for its detection and prognosis, along with appropriate management of such patient population.
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Affiliation(s)
- Mridul Bansal
- Section of Cardiovascular Medicine, Department of Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Aryan Mehta
- Section of Cardiovascular Medicine, Department of Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | | | - Arvind Kalyan Sundaram
- Section of Cardiovascular Medicine, Department of Medicine, UMass Chan-Baystate Medical Center, Springfield, Massachusetts
| | | | - Mandeep Singh
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
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8
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Volcheck GW, Melchiors BB, Farooque S, Gonzalez-Estrada A, Mertes PM, Savic L, Tacquard C, Garvey LH. Perioperative Hypersensitivity Evaluation and Management: A Practical Approach. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:382-392. [PMID: 36436761 DOI: 10.1016/j.jaip.2022.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/04/2022] [Accepted: 11/01/2022] [Indexed: 11/27/2022]
Abstract
Perioperative hypersensitivity (POH) is an uncommon, potentially life-threatening event. Identification of POH can be difficult given the lack of familiarity, physiological effects of anesthesia, draping of the patient during surgery, and potential nonimmunological factors contributing to signs and symptoms. Given the unique nature and large number of medications administered in the perioperative setting, evaluation of POH can be challenging. In this paper, we present a practical approach to management with an emphasis on understanding what happens in the operating room, the overlap of signs and symptoms between nonimmunological and immunological reactions, acute management, and subsequent evaluation. In addition, we provide a strategy for further review of an initially negative evaluation and emphasize the importance of establishing management plans for the patient as well as providing recommendations to the medical, anesthesia, and surgical teams for future surgeries. A critical factor for successful management at all points in the process is a close collaboration between the anesthesia and the allergy teams.
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Affiliation(s)
- Gerald W Volcheck
- Division of Allergic Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, Minn.
| | | | - Sophie Farooque
- Frankland Allergy Clinic, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Alexei Gonzalez-Estrada
- Division of Allergy, Asthma and Clinical Immunology, Department of Medicine, Mayo Clinic, Scottsdale, AZ
| | - Paul Michel Mertes
- Department of Anesthesia and Intensive Care, Strasbourg University Hospital, Strasbourg, France
| | - Louise Savic
- Department of Anaesthesia, Leeds Teaching Hospitals, NHS Trust, Leeds, UK
| | - Charles Tacquard
- Department of Anesthesia and Intensive Care, Strasbourg University Hospital, Strasbourg, France
| | - Lene Heise Garvey
- Allergy Clinic, Department of Dermatology and Allergy, Gentofte Hospital, Gentofte, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Luis-Silva F, Menegueti MG, Sato L, Peres LM, dos Reis Sepeda C, Petroski-Moraes BC, Donadel MD, Gallo GB, Jordani MC, Mestriner F, Becari C, Basile-Filho A, Evora PRB, Martins-Filho OA, Auxiliadora-Martins M. Effect of methylene blue on hemodynamic response in the early phase of septic shock: A case series. Medicine (Baltimore) 2023; 102:e32743. [PMID: 36705345 PMCID: PMC9875988 DOI: 10.1097/md.0000000000032743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
RATIONALE Methylene blue (MB) has been used to increase blood pressure in septic shock, acting on the activity of guanylate cyclase and nitric oxide synthase. PATIENCE CONCERNS The aim of this study is to demonstrate the benefit of MB in early phase of septic shock.Diagnoses: We report 6 cases of patients with septic shock with up to 72 hours of evolution. INTERVENTIONS We used MB after fluid replacement, use of norepinephrine and vasopressin. Patients received a loading dose of MB and maintenance for 48 hours. OUTCOMES All patients presented a reduction in the dose of vasopressors and lactate levels soon after the administration of the loading dose of MB, an effect that was maintained with the maintenance dose for 48 hours. Interleukin 6 and interleukin 8 were elevated at the beginning of the septic condition, with a progressive and marked reduction after the beginning of MB infusion, demonstrating a role of MB in reducing the inflammatory activity. LESSONS This case series suggests that MB used early in the treatment of septic shock may be useful in reducing vasopressor dose and lactate levels. Further studies are still required to further validate these findings.
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Affiliation(s)
- Fabio Luis-Silva
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- * Correspondence: Maria Auxiliadora-Martins, Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo 14048-900, Brazil (e-mail: )
| | | | - Lucas Sato
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Leandro Moreira Peres
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Corina dos Reis Sepeda
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Bruno C. Petroski-Moraes
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Mariana Dermínio Donadel
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Gabriela Bortoleto Gallo
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Maria Cecília Jordani
- Division of Cardiac Surgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Fabiola Mestriner
- Division of Vascular and Endovascular Surgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Christiane Becari
- Division of Vascular and Endovascular Surgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Anibal Basile-Filho
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paulo R. B. Evora
- Division of Cardiac Surgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Maria Auxiliadora-Martins
- Division of Intensive Care Medicine, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Leone M, Einav S, Antonucci E, Depret F, Lakbar I, Martin-Loeches I, Wieruszewski PM, Myatra SN, Khanna AK. Multimodal strategy to counteract vasodilation in septic shock. Anaesth Crit Care Pain Med 2023; 42:101193. [PMID: 36621622 DOI: 10.1016/j.accpm.2023.101193] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/26/2022] [Accepted: 12/30/2022] [Indexed: 01/07/2023]
Abstract
Early initiation of a multimodal treatment strategy in the management of vasopressors during septic shock has been advocated to reduce delays in restoring adequate organ perfusion and to mitigate side effects associated with the administration of high-dose catecholamines. We provide a review that summarises the pathophysiology of vasodilation, the physiologic response to the vascular response, and the different drugs used in this situation, focusing on the need to combine early different vasopressors. Fluid loading being insufficient for counteracting vasoplegia, norepinephrine is usually the first-line vasopressor used to restore hemodynamics. Norepinephrine sparing is discussed in further detail through the concomitant use of adrenergic, vasopressinergic, and renin-angiotensin systems and the optimisation of endothelial reactivity with methylene blue. A blueprint for the construction of new studies is outlined to address the question of vasopressor selection and timing in septic shock.
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Affiliation(s)
- Marc Leone
- Department of Anesthesiology and Intensive Care Unit, North Hospital, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Marseille, France.
| | - Sharon Einav
- Surgical Intensive Care, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Elio Antonucci
- Intermediate Care Unit, Emergency Department, Ospedale Guglielmo da Saliceto, Piacenza, Italy
| | - François Depret
- GH St-Louis-Lariboisière, Department of Anesthesiology and Critical Care and Burn Unit, St-Louis Hospital, Assistance Publique-Hopitaux de Paris, Paris, France
| | - Ines Lakbar
- Department of Anesthesiology and Intensive Care Unit, North Hospital, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Marseille, France
| | - Ignacio Martin-Loeches
- Intensive Care Unit, Trinity Centre for Health Science HRB-Wellcome Trust, St James's Hospital, Dublin, Ireland
| | | | - Sheila Nainan Myatra
- Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Ashish K Khanna
- Department of Anesthesiology, Section on Critical Care Medicine, Wake Forest School of Medicine, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, NC, USA; Outcomes Research Consortium, Cleveland, OH, USA
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11
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Muacevic A, Adler JR, Boyer GA, Pathak V. Methylene Blue in Refractory Shock. Cureus 2022; 14:e31158. [PMID: 36505110 PMCID: PMC9728991 DOI: 10.7759/cureus.31158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
Many patients suffer shock in intensive care units (ICU). The majority of the patients with shock respond to standard treatment with vasopressors in addition to the treatment of underlying etiology. Some may not respond to vasopressors and have high mortality. To those patients who do not respond, methylene blue has been used in the past with some success. We present a case report on the use of methylene blue along with a brief literature review.
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12
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Zhao CC, Zhai YJ, Hu ZJ, Huo Y, Li ZQ, Zhu GJ. Efficacy and safety of methylene blue in patients with vasodilatory shock: A systematic review and meta-analysis. Front Med (Lausanne) 2022; 9:950596. [PMID: 36237547 PMCID: PMC9552293 DOI: 10.3389/fmed.2022.950596] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 09/01/2022] [Indexed: 12/03/2022] Open
Abstract
Background The role of methylene blue (MB) in patients with vasodilatory shock is unclear. The purpose of this systematic review and meta-analysis was to evaluate the efficacy and safety of MB in patients with vasodilatory shock. Methods We searched MEDLINE at PubMed, Embase, Web of Science, Cochrane, CNKI, CBM and Wanfang Medical databases for all observational and intervention studies comparing the effect of MB vs. control in vasodilatory shock patients. This study was performed in accordance with the PRISMA statement. There were no language restrictions for inclusion. Results A total of 15 studies with 832 patients were included. Pooled data demonstrated that administration of MB along with vasopressors significantly reduced mortality [odds ratio (OR) 0.54, 95% confidence interval (CI) 0.34 to 0.85, P = 0.008; I 2 = 7%]. This benefit in mortality rate was also seen in a subgroup analysis including randomized controlled trials and quasi-randomized controlled trials. In addition, the vasopressor requirement was reduced in the MB group [mean difference (MD) -0.77, 95%CI -1.26 to -0.28, P = 0.002; I 2 = 80%]. Regarding hemodynamics, MB increased the mean arterial pressure, heart rate and peripheral vascular resistance. In respect to organ function, MB was associated with a lower incidence of renal failure, while in regards to oxygen metabolism, it was linked to reduced lactate levels. MB had no effect on the other outcomes and no serious side effects. Conclusions Concomitant administration of MB and vasopressors improved hemodynamics, decreased vasopressor requirements, reduced lactate levels, and improved survival in patients with vasodilatory shock. However, further studies are required to confirm these findings. Systematic review registration Identifier: CRD42021281847.
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Affiliation(s)
- Cong-Cong Zhao
- Department of Intensive Care Unit, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yu-Jia Zhai
- Department of Intensive Care Unit, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhen-Jie Hu
- Department of Intensive Care Unit, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yan Huo
- Department of Intensive Care Unit, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhi-Qiang Li
- Department of Intensive Care Unit, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Gui-Jun Zhu
- Department of Intensive Care Unit, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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13
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Alshaya OA, Alhamed A, Althewaibi S, Fetyani L, Alshehri S, Alnashmi F, Alharbi S, Alrashed M, Alqifari SF, Alshaya AI. Calcium Channel Blocker Toxicity: A Practical Approach. J Multidiscip Healthc 2022; 15:1851-1862. [PMID: 36065348 PMCID: PMC9440664 DOI: 10.2147/jmdh.s374887] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022] Open
Abstract
Calcium channel blockers (CCBs) are widely prescribed medications for various clinical indications in adults and children. They are available in both immediate and long-acting formulations and are generally classified into dihydropyridines and nondihydropyridines, with nondihydropyridines having more cardioselectivity. CCB toxicity is common given the widespread use which leads to serious adverse clinical outcomes, especially in children. Severe CCB toxicities may present with life-threatening bradycardia, hypotension, hyperglycemia, and renal insufficiency. Dihydropyridine toxicity, however, may present with reflex tachycardia instead of bradycardia. Initial patient evaluation and assessment are crucial to identify the severity of CCB toxicity and design the best management strategy. There are different strategies to overcome CCB toxicity that requires precise dosing and close monitoring in various patient populations. These strategies may include large volumes of IV fluids, calcium salts, high insulin euglycemia therapy (HIET), and vasopressors. We hereby summarize the evidence behind the management of CCB toxicity and present a practical guide for clinicians to overcome this common drug toxicity.
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Affiliation(s)
- Omar A Alshaya
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Department of Pharmaceutical Care, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Correspondence: Omar A Alshaya, Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, P.O. Box 3660, Riyadh, 11481, Saudi Arabia, Email
| | - Arwa Alhamed
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- College of Nursing, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Sara Althewaibi
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Lolwa Fetyani
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Shaden Alshehri
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Fai Alnashmi
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Shmeylan Alharbi
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Department of Pharmaceutical Care, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Mohammed Alrashed
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Department of Pharmaceutical Care, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Pharmacy Department, Northwest Medical Center, Tucson, AZ, USA
| | - Saleh F Alqifari
- Department of Pharmacy Practice, College of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Abdulrahman I Alshaya
- Department of Pharmacy Practice, College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Department of Pharmaceutical Care, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
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14
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High Doses of Inhaled Nitric Oxide as an Innovative Antimicrobial Strategy for Lung Infections. Biomedicines 2022; 10:biomedicines10071525. [PMID: 35884830 PMCID: PMC9312466 DOI: 10.3390/biomedicines10071525] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/06/2022] [Accepted: 06/15/2022] [Indexed: 11/24/2022] Open
Abstract
Since the designation of nitric oxide as “Molecule of the Year” in 1992, the scientific and clinical discoveries concerning this biomolecule have been greatly expanding. Currently, therapies enhancing the release of endogenous nitric oxide or the direct delivery of the exogenous compound are recognized as valuable pharmacological treatments in several disorders. In particular, the administration of inhaled nitric oxide is routinely used to treat patients with pulmonary hypertension or refractory hypoxemia. More recently, inhaled nitric oxide has been studied as a promising antimicrobial treatment strategy against a range of pathogens, including resistant bacterial and fungal infections of the respiratory system. Pre-clinical and clinical findings have demonstrated that, at doses greater than 160 ppm, nitric oxide has antimicrobial properties and can be used to kill a broad range of infectious microorganisms. This review focused on the mechanism of action and current evidence from in vitro studies, animal models and human clinical trials of inhaled high-dose nitric oxide as an innovative antimicrobial therapy for lung infections.
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15
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Zhang Y, Zhang X, Cao Z, Huang Y, Zheng Y, Yang X. Endothelial cell-derived SSAO can increase MLC 20 phosphorylation in VSMCs. Open Life Sci 2021; 16:1141-1150. [PMID: 34722886 PMCID: PMC8542650 DOI: 10.1515/biol-2021-0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 12/01/2022] Open
Abstract
Vascular hyporesponsiveness in the shock decompensation period is an important factor leading to death. Myosin light chain 20 (MLC20) is the main effector protein that regulates vascular reactivity. However, whether the change in semicarbazide-sensitive amine oxidase (SSAO) expression during hypoxia can change the MLC20 phosphorylation level, and its underlying mechanism were not clear. The amine oxidase copper containing 3 (AOC3) overexpressing adenovirus vector was constructed and transfected into rat intestinal microvascular endothelial cells (RIMECs) to overexpress SSAO, and the RIMECs were co-cultured with rat intestinal microvascular smooth muscle cells (RIMSCs). The changes in SSAO/inducible nitric oxide synthase (iNOS)/Rho associate coiled-coil containing protein kinase 1 (ROCK1) expression levels and MLC20 phosphorylation level were detected. Here we found that the increased SSAO by AOC3 overexpression can decrease the iNOS expression level and its activity after hypoxia. In addition, RIMSCs co-cultured with RIMECs overexpressed with AOC3 gene had significantly higher ROCK1 protein level and MLC20 phosphorylation level than RIMSCs co-cultured with normal RIMECs. Our study demonstrated that SSAO overexpression can significantly inhibit iNOS activity, promote RhoA/ROCK pathway activation, and increase the phosphorylation level of MLC20, which might be the potential mechanism in relieving the vascular hyporesponsiveness during shock decompensation.
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Affiliation(s)
- Yuxing Zhang
- Department of General Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, People's Republic of China
| | - Xiliang Zhang
- Department of General Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, People's Republic of China
| | - Zhen Cao
- Department of General Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, People's Republic of China
| | - Yun Huang
- Department of General Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, People's Republic of China
| | - Yuexin Zheng
- Department of General Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, People's Republic of China
| | - Xiaodong Yang
- Department of General Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, People's Republic of China
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16
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Abstract
ABSTRACT Methylene blue has been in medicinal use for centuries and is best known as an antidotal treatment for acquired methemoglobinemia (MetHB). More recently, methylene blue has gained recognition for its efficacious use in the treatment of ifosfamide neurotoxicity and refractory vasoplegic shock in both the pediatric and adult critical care literature, extending its use beyond MetHB. Methylene blue's mechanism of action is somewhat complex and based partly on its oxidizing capabilities, ironically the same mechanism that causes MetHB. This review will examine methylene blue's use in the treatment of acquired MetHB and ifosfamide neurotoxicity and review the current literature regarding its role in critically ill pediatric and adult patients with refractory vasoplegic shock. Methylene blue's pharmacologic actions, dosing, and adverse effects will also be discussed.
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Affiliation(s)
- Renita S Pushparajah Mak
- From the Assistant Professor of Pediatrics (Pushparajah Mak) and Professor of Pediatrics (Liebelt), University of Arkansas for Medical Sciences
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17
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Wiklund L, Sharma A, Patnaik R, Muresanu DF, Sahib S, Tian ZR, Castellani RJ, Nozari A, Lafuente JV, Sharma HS. Upregulation of hemeoxygenase enzymes HO-1 and HO-2 following ischemia-reperfusion injury in connection with experimental cardiac arrest and cardiopulmonary resuscitation: Neuroprotective effects of methylene blue. PROGRESS IN BRAIN RESEARCH 2021; 265:317-375. [PMID: 34560924 DOI: 10.1016/bs.pbr.2021.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Oxidative stress plays an important role in neuronal injuries after cardiac arrest. Increased production of carbon monoxide (CO) by the enzyme hemeoxygenase (HO) in the brain is induced by the oxidative stress. HO is present in the CNS in two isoforms, namely the inducible HO-1 and the constitutive HO-2. Elevated levels of serum HO-1 occurs in cardiac arrest patients and upregulation of HO-1 in cardiac arrest is seen in the neurons. However, the role of HO-2 in cardiac arrest is not well known. In this review involvement of HO-1 and HO-2 enzymes in the porcine brain following cardiac arrest and resuscitation is discussed based on our own observations. In addition, neuroprotective role of methylene blue- an antioxidant dye on alterations in HO under in cardiac arrest is also presented. The biochemical findings of HO-1 and HO-2 enzymes using ELISA were further confirmed by immunocytochemical approach to localize selective regional alterations in cardiac arrest. Our observations are the first to show that cardiac arrest followed by successful cardiopulmonary resuscitation results in significant alteration in cerebral concentrations of HO-1 and HO-2 levels indicating a prominent role of CO in brain pathology and methylene blue during CPR followed by induced hypothermia leading to superior neuroprotection after return of spontaneous circulation (ROSC), not reported earlier.
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Affiliation(s)
- Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Ranjana Patnaik
- Department of Biomaterials, School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Dafin F Muresanu
- Department of Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; "RoNeuro" Institute for Neurological Research and Diagnostic, Cluj-Napoca, Romania
| | - Seaab Sahib
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Z Ryan Tian
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Rudy J Castellani
- Department of Pathology, University of Maryland, Baltimore, MD, United States
| | - Ala Nozari
- Anesthesiology & Intensive Care, Massachusetts General Hospital, Boston, MA, United States
| | - José Vicente Lafuente
- LaNCE, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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18
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Marchese GA, Pascal M. Effect of methylene blue used as medical dye on blood pressure in a dog undergoing partial pancreatectomy. VETERINARY RECORD CASE REPORTS 2021. [DOI: 10.1002/vrc2.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Manuela Pascal
- Anaesthesia and Analgesia Southfields Veterinary Specialists Basildon UK
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19
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Sharma K, Sadhanala HK, Mastai Y, Porat Z, Gedanken A. Sonochemically Prepared BSA Microspheres as Adsorbents for the Removal of Organic Pollutants from Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9927-9938. [PMID: 34351165 DOI: 10.1021/acs.langmuir.1c01716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This work investigates, for the first time, the application of sonochemically prepared bovine serum albumin (BSA) microspheres (BSAMS) as adsorbents of industrial organic pollutant dyes, such as rhodamine B (RhB), rhodamine 6G (Rh6G), and methylene blue (MB). These dyes also serve as model compounds for other organic pollutants such as bisphenol A and 2-nitrophenol. Adsorption kinetics of the dyes by the BSAMS was studied using pseudo-first-order (PFO) and pseudo-second-order (PSO) kinetic models. It was found that RhB follows PFO, with an adsorption capacity, qe,cal, of 7.9 mg/g, which was closer to the experimental adsorption capacity of qe,exp. of 7.6 mg/g. However, MB and Rh6G were controlled by PSO kinetics, with a qe,cal of 5.6 mg/g for MB and 6.6 mg/g for Rh6G, closer to the experimental adsorption capacity of 5.7 and 6.4 mg/g, respectively. The intraparticle diffusion (ID) model applied to the three dyes indicated multi-linearity with ID as the rate-limiting step in the adsorption process. Furthermore, the adsorption equilibria for each of the organic pollutants were studied through various isotherm models such as Langmuir, Freundlich, Temkin, and Halsey, which indicated physical interaction between the BSAMS and the dye pollutants, thus suggesting the applicability of the BSAMS as pollutant adsorbent materials. It was found that the BSAMS can effectively remove RhB, MB, and Rh6G from wastewater with efficiencies of 95.5, 83.3, and 97.9%, respectively.
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Affiliation(s)
- Kusha Sharma
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Hari Krishna Sadhanala
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Yitzhak Mastai
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Ze'ev Porat
- Department of Civil and Environmental Engineering, Ben-Gurion University of the Negev, Be'er-Sheva 84105, Israel
- Department of Chemistry, Nuclear Research Center-Negev, Be'er-Sheva 84190, Israel
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
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20
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Nguyen SMT, Rupprecht CP, Haque A, Pattanaik D, Yusin J, Krishnaswamy G. Mechanisms Governing Anaphylaxis: Inflammatory Cells, Mediators, Endothelial Gap Junctions and Beyond. Int J Mol Sci 2021; 22:ijms22157785. [PMID: 34360549 PMCID: PMC8346007 DOI: 10.3390/ijms22157785] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022] Open
Abstract
Anaphylaxis is a severe, acute, life-threatening multisystem allergic reaction resulting from the release of a plethora of mediators from mast cells culminating in serious respiratory, cardiovascular and mucocutaneous manifestations that can be fatal. Medications, foods, latex, exercise, hormones (progesterone), and clonal mast cell disorders may be responsible. More recently, novel syndromes such as delayed reactions to red meat and hereditary alpha tryptasemia have been described. Anaphylaxis manifests as sudden onset urticaria, pruritus, flushing, erythema, angioedema (lips, tongue, airways, periphery), myocardial dysfunction (hypovolemia, distributive or mixed shock and arrhythmias), rhinitis, wheezing and stridor. Vomiting, diarrhea, scrotal edema, uterine cramps, vaginal bleeding, urinary incontinence, dizziness, seizures, confusion, and syncope may occur. The traditional (or classical) pathway is mediated via T cells, Th2 cytokines (such as IL-4 and 5), B cell production of IgE and subsequent crosslinking of the high affinity IgE receptor (FcεRI) on mast cells and basophils by IgE-antigen complexes, culminating in mast cell and basophil degranulation. Degranulation results in the release of preformed mediators (histamine, heparin, tryptase, chymase, carboxypeptidase, cathepsin G and tumor necrosis factor alpha (TNF-α), and of de novo synthesized ones such as lipid mediators (cysteinyl leukotrienes), platelet activating factor (PAF), cytokines and growth factors such as vascular endothelial growth factor (VEGF). Of these, histamine, tryptase, cathepsin G, TNF-α, LTC4, PAF and VEGF can increase vascular permeability. Recent data suggest that mast cell-derived histamine and PAF can activate nitric oxide production from endothelium and set into motion a signaling cascade that leads to dilatation of blood vessels and dysfunction of the endothelial barrier. The latter, characterized by the opening of adherens junctions, leads to increased capillary permeability and fluid extravasation. These changes contribute to airway edema, hypovolemia, and distributive shock, with potentially fatal consequences. In this review, besides mechanisms (endotypes) underlying IgE-mediated anaphylaxis, we also provide a brief overview of IgG-, complement-, contact system-, cytokine- and mast cell-mediated reactions that can result in phenotypes resembling IgE-mediated anaphylaxis. Such classifications can lead the way to precision medicine approaches to the management of this complex disease.
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Affiliation(s)
| | | | - Aaisha Haque
- The Bill Hefner VA Medical Center, Salisbury, NC 27106, USA;
| | - Debendra Pattanaik
- Division of Allergy and Immunology, UT Memphis College of Medicine, Memphis, TN 38103, USA;
| | - Joseph Yusin
- The Division of Allergy and Immunology, Greater Los Angeles VA Medical Center, Los Angeles, CA 90011, USA;
| | - Guha Krishnaswamy
- Department of Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27106, USA;
- The Bill Hefner VA Medical Center, Salisbury, NC 27106, USA;
- Correspondence:
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21
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Sohn JT. The Mechanisms Underlying Methylene Blue-Mediated Attenuation of Nitric Oxide-induced Vasodilatation. J Emerg Med 2021; 60:679. [PMID: 34016379 DOI: 10.1016/j.jemermed.2020.10.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/24/2020] [Accepted: 10/25/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Ju-Tae Sohn
- Department of Anesthesiology and Pain Medicine, Gyeongsang National University College of Medicine, Gyeongsang National University Hospital, Gyeongsangnam-do, Republic of Korea; Institute of Health Sciences, Gyeonsang National University, Jinju-si, Republic of Korea
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22
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de Jong TV, Guryev V, Moshkin YM. Estimates of gene ensemble noise highlight critical pathways and predict disease severity in H1N1, COVID-19 and mortality in sepsis patients. Sci Rep 2021; 11:10793. [PMID: 34031464 PMCID: PMC8144599 DOI: 10.1038/s41598-021-90192-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/07/2021] [Indexed: 01/09/2023] Open
Abstract
Finding novel biomarkers for human pathologies and predicting clinical outcomes for patients is challenging. This stems from the heterogeneous response of individuals to disease and is reflected in the inter-individual variability of gene expression responses that obscures differential gene expression analysis. Here, we developed an alternative approach that could be applied to dissect the disease-associated molecular changes. We define gene ensemble noise as a measure that represents a variance for a collection of genes encoding for either members of known biological pathways or subunits of annotated protein complexes and calculated within an individual. The gene ensemble noise allows for the holistic identification and interpretation of gene expression disbalance on the level of gene networks and systems. By comparing gene expression data from COVID-19, H1N1, and sepsis patients we identified common disturbances in a number of pathways and protein complexes relevant to the sepsis pathology. Among others, these include the mitochondrial respiratory chain complex I and peroxisomes. This suggests a Warburg effect and oxidative stress as common hallmarks of the immune host-pathogen response. Finally, we showed that gene ensemble noise could successfully be applied for the prediction of clinical outcome namely, the mortality of patients. Thus, we conclude that gene ensemble noise represents a promising approach for the investigation of molecular mechanisms of pathology through a prism of alterations in the coherent expression of gene circuits.
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Affiliation(s)
- Tristan V de Jong
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.,Gene Learning Association, Geneva, Switzerland
| | - Victor Guryev
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands. .,Gene Learning Association, Geneva, Switzerland.
| | - Yuri M Moshkin
- Federal Research Centre, Institute of Cytology and Genetics, SB RAS, Novosibirsk, Russia. .,Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia. .,Gene Learning Association, Geneva, Switzerland.
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23
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Vodovar D, Tournoud C, Boltz P, Paradis C, Puskarczyk E. Severe intentional sodium nitrite poisoning is also being seen in France. Clin Toxicol (Phila) 2021; 60:272-274. [PMID: 33988068 DOI: 10.1080/15563650.2021.1919695] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Dominique Vodovar
- Centre Antipoison et de Toxicovigilance de Paris - Fédération de Toxicologie de l'APHP, Hôpital Fernand Widal, Paris, France.,INSERM UMRS 1144, Paris, France.,Université de Paris, UFR de médecine, Paris, France
| | - Christine Tournoud
- Centre Antipoison et de Toxicovigilance Est, CHRU de Nancy, Nancy, France
| | - Patricia Boltz
- Centre Antipoison et de Toxicovigilance Est, CHRU de Nancy, Nancy, France
| | - Camille Paradis
- Centre antipoison et de Toxicovigilance de Bordeaux, CHRU de Bordeaux, Bordeaux, France
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24
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Effect of methylene blue treatment on amlodipine toxicity-induced myocardial depression. Am J Emerg Med 2021; 52:239-240. [PMID: 33814204 DOI: 10.1016/j.ajem.2021.03.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 11/23/2022] Open
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Critical Care Management of the Patient With Anaphylaxis: A Concise Definitive Review. Crit Care Med 2021; 49:838-857. [PMID: 33653974 DOI: 10.1097/ccm.0000000000004893] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Anaphylaxis is a rapidly progressive life-threatening syndrome manifesting as pruritus, urticaria, angioedema, bronchospasm and shock. The goal of this synthetic review is to provide a practical, updated approach to the evaluation and management of this disorder and associated complications. DATA SOURCES A MEDLINE search was conducted with the MeSH of anaphylaxis, anaphylactic reaction, anaphylactic shock, refractory anaphylaxis and subheadings of diagnosis, classification, epidemiology, complications and pharmacology. The level of evidence supporting an intervention was evaluated based on the availability of randomized studies, expert opinion, case studies, reviews, practice parameters and other databases (including Cochrane). STUDY SELECTION Selected publications describing anaphylaxis, clinical trials, diagnosis, mechanisms, risk factors and management were retrieved (reviews, guidelines, clinical trials, case series) and their bibliographies were also reviewed to identify relevant publications. DATA EXTRACTION Data from the relevant publications were reviewed, summarized and the information synthesized. DATA SYNTHESIS This is a synthetic review and the data obtained from a literature review was utilized to describe current trends in the diagnosis and management of the patient with anaphylaxis with a special emphasis on newer evolving concepts of anaphylaxis endotypes and phenotypes, management of refractory anaphylaxis in the ICU setting and review of therapeutic options for the elderly patient, or the complicated patient with severe cardiorespiratory complications. Most of the recommendations come from practice parameters, case studies or expert opinions, with a dearth of randomized trials to support specific interventions. CONCLUSION Anaphylaxis is a rapidly progressive life-threatening disorder. The critical care physician needs to be familiar with the diagnosis, differential diagnosis, evaluation, and management of anaphylaxis. Skilled intervention in ICUs may be required for the patient with complicated, severe, or refractory anaphylaxis.
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Neth MR, Love JS, Horowitz BZ, Shertz MD, Sahni R, Daya MR. Fatal Sodium Nitrite Poisoning: Key Considerations for Prehospital Providers. PREHOSP EMERG CARE 2020; 25:844-850. [DOI: 10.1080/10903127.2020.1838009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Afzal A, Quinton M, Farooque U, Magguilli M. Turquoise Discoloration of Organs on Autopsy Secondary to Treatment of Septic Shock With Methylene Blue. Cureus 2020; 12:e10434. [PMID: 33062547 PMCID: PMC7556683 DOI: 10.7759/cureus.10434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Septic shock can result from the dissemination of infections and can lead to hypoperfusion secondary to vasodilation. Methylene blue can help stabilize blood pressure refractory to other measures in shock. We report a case of a 58-year-old male who died of septic shock due to Pseudomonas aeroginosa bacteremia secondary to acute folliculitis and epididymo-orchitis. He was given methylene blue for reversal of septic shock but he did not respond and expired. Autopsy findings were significant for bluish-green discoloration of organs, especially the heart, lungs, and brain during prosection secondary to methylene blue treatment. It is important to recognize artifacts of treatment and to discern them from changes due to putrefaction or the classic green pigmentation associated with Pseudomonas aeruginosa infection, such as chloronychia. The case report illustrates that circulating methylene blue and its metabolites can accumulate in the organs in a dose-related fashion, imparting an interesting turquoise to dark blue-green pigment during the autopsy. Additional studies are warranted to enable pathologists to differentiate among the pigmentation associated with Pseudomonas aeruginosa bacteremia, putrefaction, and methylene blue treatment.
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Affiliation(s)
- Anoshia Afzal
- Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, USA
| | - Michael Quinton
- Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, USA
| | - Umar Farooque
- Neurology, Dow University of Health Sciences, Karachi, PAK
| | - Michael Magguilli
- Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, USA
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Puntillo F, Giglio M, Pasqualucci A, Brienza N, Paladini A, Varrassi G. Vasopressor-Sparing Action of Methylene Blue in Severe Sepsis and Shock: A Narrative Review. Adv Ther 2020; 37:3692-3706. [PMID: 32705530 PMCID: PMC7444404 DOI: 10.1007/s12325-020-01422-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Indexed: 12/15/2022]
Abstract
Shock is a serious acute circulatory failure leading to inadequate oxygen delivery to the cells. Its treatment is mainly based on circulating fluid optimization, and vasopressors to provide an adequate mean arterial pressure and microcirculatory flow. Norepinephrine is the drug of choice, but high dosages may be responsible for several side effects, including increased myocardial oxygen consumption, dysrhythmias, and peripheral and organ ischemia. Moreover, some patients are “non-responders” to first-line norepinephrine treatment. Hence, other drugs have been proposed to reach and maintain the hemodynamic target. In general, they are described as catecholamine-sparing agents. Among others, the most used are vasopressin, corticosteroids, and angiotensin II. Methylene blue (MB) represents a further option, even though its use is still a topic of controversy. This review article tries to summarize what is known and unknown about the actions of MB in patients in shock. It reduces excessive production of nitric oxide via blockade of guanylate cyclase in shock states. At present, it appears the MB provides positive results in septic shock, if administered early. Further randomized controlled trials are warranted regarding its use to provide more precise indications to physicians involved in the treatment of such patients.
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Affiliation(s)
- Filomena Puntillo
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124, Bari, Italy
| | - Mariateresa Giglio
- Anesthesia, Intensive Care and Pain Unit, Policlinico Hospital, 70124, Bari, Italy
| | - Alberto Pasqualucci
- Department of Surgical and Biomedical Science, University of Perugia, 06100, Perugia, Italy
- Rashid Hospital, Trauma and Emergency Center, Dubai Health Authority, Dubai, UAE
| | - Nicola Brienza
- Department of Emergency and Organ Transplantation, University of Bari "Aldo Moro", 70124, Bari, Italy
| | | | - Giustino Varrassi
- Paolo Procacci Foundation, Via Tacito 7, 00193, Rome, Italy.
- World Institute of Pain, Winston-Salem, NC, USA.
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LeRoy JM, Boley SP, Corcoran JN, Engebretsen KM, Stellpflug SJ. Effect of Methylene Blue on a Porcine Model of Amlodipine Toxicity. J Med Toxicol 2020; 16:398-404. [PMID: 32495116 DOI: 10.1007/s13181-020-00780-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 04/07/2020] [Accepted: 04/28/2020] [Indexed: 10/24/2022] Open
Abstract
INTRODUCTION Calcium channel blocker (CCB) overdoses cause significant morbidity and mortality. Dihydropyridine CCBs cause peripheral vascular dilation and at high doses cardiac dysfunction. Amlodipine, a dihydropyridine, causes peripheral vasodilation from release of nitric oxide (NO) in addition to calcium channel blockade; NO scavenging is a potential treatment. Methylene blue (MB) inhibits NO directly and inhibits NO production. We compared the effects of MB versus norepinephrine (NE), with time to death as the primary outcome, in a porcine amlodipine toxicity model. METHODS Animals were anesthetized and instrumented, and an amlodipine infusion was administered to mimic oral overdose. After 70 minutes, each group was resuscitated with normal saline. Animals in each group were then randomized to receive either MB or NE. Hemodynamic parameters, including mean arterial pressure and cardiac output, were recorded every 10 minutes. The primary outcome was survival time (Kaplan-Meier analysis and log-rank test). RESULTS Interim analysis after 15 animals (7 MB, 8 NE) revealed that MB was clearly not superior to NE. Overall, 1 of 7 animals in the MB group survived to 300 minutes compared with 2 of 8 animals in the NE group. The median survival time was 100 minutes for the MB group and 177 minutes for the NE group. Survival time did not differ by group (log-rank test p = 0.29). CONCLUSION In this porcine model of amlodipine toxicity, methylene blue did not improve survival time compared with norepinephrine. Whether methylene blue is beneficial in combatting distributive shock in amlodipine toxicity remains unclear and requires further study.
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Affiliation(s)
- Jenna M LeRoy
- Department of Emergency Medicine, Regions Hospital, Saint Paul, MN, USA.
| | - Sean P Boley
- Department of Emergency Medicine, United Hospital, Saint Paul, MN, USA
| | - Justin N Corcoran
- Department of Emergency Medicine, Regions Hospital, Saint Paul, MN, USA
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van Cuilenborg VR, Hermanides J, Bos EME, Hollmann MW, Preckel B, Kooij FO, Terreehorst I. Perioperative approach of allergic patients. Best Pract Res Clin Anaesthesiol 2020; 35:11-25. [PMID: 33742571 DOI: 10.1016/j.bpa.2020.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 12/18/2022]
Abstract
Perioperative allergic reactions are rare, yet important complications of anesthesia. Severe, generalized allergic reactions called anaphylaxis are estimated to have a mortality of 3.5-4.8%. Adequate recognition and handling of a severe perioperative anaphylactic reaction result in better outcomes, including less hypoxic-ischemic encephalopathy and death. The diagnosis of a perioperative allergic reaction can be difficult as the list of possible culprits of a perioperative allergic reaction is extensive. Making an informed guess on the causative agent and avoiding this agent in future anesthesia procedures is undesirable and unsafe. Therefore, to ensure future patient safety, a thorough investigation following a perioperative allergic reaction is mandatory. A collaborate approach by allergists and anesthesiologists is advised. In this article, we discuss the basic approach of the allergic patient and of patients with a suspected allergy to perioperatively administered medication.
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Affiliation(s)
- Vincent R van Cuilenborg
- Dutch Perioperative Allergy Centre, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Anaesthesiology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| | - Jeroen Hermanides
- Dutch Perioperative Allergy Centre, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Anaesthesiology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| | - Elke M E Bos
- Dutch Perioperative Allergy Centre, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Anaesthesiology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| | - Markus W Hollmann
- Department of Anaesthesiology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| | - Benedikt Preckel
- Department of Anaesthesiology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| | - Fabian O Kooij
- Dutch Perioperative Allergy Centre, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Anaesthesiology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| | - Ingrid Terreehorst
- Dutch Perioperative Allergy Centre, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Otorhinolaryngology, Amsterdam University Medical Centres, Location AMC, Meibergdreef 9, 1105 AZ, the Netherlands.
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31
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Tchen S, Sullivan JB. Clinical utility of midodrine and methylene blue as catecholamine-sparing agents in intensive care unit patients with shock. J Crit Care 2020; 57:148-156. [PMID: 32145658 DOI: 10.1016/j.jcrc.2020.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/29/2020] [Accepted: 02/17/2020] [Indexed: 02/07/2023]
Abstract
Shock is common in the intensive care unit, affecting up to one third of patients. Treatment of shock is centered upon managing hypotension and ensuring adequate perfusion via administration of fluids and catecholamine vasopressors. Due to the risks associated with catecholamine vasopressors, interest has grown in using catecholamine-sparing agents such as midodrine and methylene blue. Midodrine is an orally administered alpha-1 adrenergic agonist while methylene blue is an intravenously administered blue dye used to restore vascular tone and increase blood pressure. Separate MEDLINE, Scopus, and Embase database searches were conducted to assess literature revolving around these agents. Examples of search terms included "midodrine", "methylene blue", "critically ill", "shock", and "catecholamine-sparing." Several studies have evaluated their use in patients with shock and found potential benefits in terms of causing significant elevations in blood pressure and hastening catecholamine vasopressor discontinuation with few adverse effects; however, robust evidence is lacking for these off-label indications. Because of the variety of dosing strategies used and the incongruences between patient populations, it is also challenging to define finite recommendations. This review aims to summarize current evidence for the use of midodrine and methylene blue as catecholamine-sparing agents in critically ill patients with resolving or refractory shock.
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Affiliation(s)
- Stephanie Tchen
- Froedtert Hospital, 9200 W Wisconsin Ave, Milwaukee, WI 53226, United States of America.
| | - Jesse B Sullivan
- Fairleigh Dickinson University School of Pharmacy & Health Sciences, Pharmacy Practice, 230 Park Ave, M-SP1-01, Florham Park, NJ 07932, United States of America.
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32
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Porizka M, Kopecky P, Dvorakova H, Kunstyr J, Lips M, Michalek P, Balik M. Methylene blue administration in patients with refractory distributive shock - a retrospective study. Sci Rep 2020; 10:1828. [PMID: 32020043 PMCID: PMC7000741 DOI: 10.1038/s41598-020-58828-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 01/21/2020] [Indexed: 11/10/2022] Open
Abstract
Hemodynamic effectiveness of methylene blue (MB) was tested in patients with refractory distributive shock. A retrospective analysis of 20 critically-ill patients who developed refractory shock was performed. Patients were divided into two study groups as responders with positive hemodynamic response to MB administration (defined as 10% decrease of norepinephrine dose) and non-responders. Hemodynamic, outcome data and baseline tissue hypoxia-related parameters including ratio of central venous-to-arterial carbon dioxide tension to arterio-venous oxygen content (P(v-a)CO2/C(a-v)O2) were compared between the groups. There were 9 (45%) responders and 11 (55%) non-responders to single bolus of MB administration. Dose of MB did not differ between responders and non-responders (1.3 ± 0.5 vs. 1.3 ± 0.4 mg/kg respectively, P = 0.979). MB responders had lower baseline P(v-a) CO2/C(a-v)O2 (1.79 ± 0.73 vs. 3.24 ± 1.18, P = 0.007), higher pH (7.26 ± 0.11 vs. 7.16 ± 0.10, P = 0.037) and lower lactate levels at 12 hours post MB administration (3.4 ± 2.7 vs. 9.9 ± 2.2 mmol/L, P = 0.002) compared to non-responders. Methylene blue represents a non-adrenergic vasopressor with only limited effectiveness in patients with refractory distributive shock. Profound tissue hypoxia with high degree of anaerobic metabolism was associated with the loss of hemodynamic responsiveness to its administration.
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Affiliation(s)
- Michal Porizka
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
| | - Petr Kopecky
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Helena Dvorakova
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jan Kunstyr
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Michal Lips
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Pavel Michalek
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Martin Balik
- General University Hospital, Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
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Rodriguez R, Fernandez EM. Role of angiotensin II in treatment of refractory distributive shock. Am J Health Syst Pharm 2020; 76:101-107. [PMID: 31361800 DOI: 10.1093/ajhp/zxy014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Clinical data and gaps in knowledge regarding angiotensin II (AT2), which was approved by the Food and Drug Administration in December 2017 via priority review for treatment of septic and other vasodilatory shock, is discussed. SUMMARY AT2 is an endogenous peptide that raises blood pressure via vasoconstriction and increased aldosterone release. It was previously available but withdrawn from the US market; previous low-quality research describes increases in mean arterial pressure (MAP). The recent approval of AT2 was based on data from a Phase III randomized trial comparing i.v. AT2 (n = 163) with placebo use (n = 158) in patients with vasodilatory shock receiving high doses of other vasopressors. AT2 significantly increased achievement of the primary endpoint, MAP response at 3 hours after the start of infusion, relative to placebo use (69.9% [n = 114] versus 23.4% [n = 37], p < 0.0001). Serious adverse events occurred in 60.7% (n = 99) and 67.1% (n = 106) of patients treated with AT2 and placebo recipients, respectively, including venous and arterial thromboembolic events (12.9% [n = 21] and 5.1% [n = 8], respectively). No significant effects of AT2 on 7- or 28-day mortality were seen among all patients in the ATHOS-3 trial. However, post hoc analyses suggested that AT2 may reduce mortality in patients with low baseline AT2 levels, exaggerated response to AT2, and acute kidney injury receiving concomitant renal replacement therapy. Overall, due to shortcomings of the ATHOS-3 trial data and the absence of confirmatory studies, the optimal place in therapy of AT2 for vasodilatory shock cannot be determined with confidence. CONCLUSION Intravenous AT2 represents a novel treatment strategy for refractory septic or other vasodilatory shock, although findings of safety and efficacy have not been replicated and the drug's optimal place in therapy is uncertain.
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Affiliation(s)
- Ryan Rodriguez
- Drug Information Group, University of Illinois at Chicago College of Pharmacy, Chicago, IL
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Belletti A, Landoni G, Lomivorotov VV, Oriani A, Ajello S. Adrenergic Downregulation in Critical Care: Molecular Mechanisms and Therapeutic Evidence. J Cardiothorac Vasc Anesth 2019; 34:1023-1041. [PMID: 31839459 DOI: 10.1053/j.jvca.2019.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 09/09/2019] [Accepted: 10/10/2019] [Indexed: 02/08/2023]
Abstract
Catecholamines remain the mainstay of therapy for acute cardiovascular dysfunction. However, adrenergic receptors quickly undergo desensitization and downregulation after prolonged stimulation. Moreover, prolonged exposure to high circulating catecholamines levels is associated with several adverse effects on different organ systems. Unfortunately, in critically ill patients, adrenergic downregulation translates into progressive reduction of cardiovascular response to exogenous catecholamine administration, leading to refractory shock. Accordingly, there has been a growing interest in recent years toward use of noncatecholaminergic inotropes and vasopressors. Several studies investigating a wide variety of catecholamine-sparing strategies (eg, levosimendan, vasopressin, β-blockers, steroids, and use of mechanical circulatory support) have been published recently. Use of these agents was associated with improvement in hemodynamics and decreased catecholamine use but without a clear beneficial effect on major clinical outcomes. Accordingly, additional research is needed to define the optimal management of catecholamine-resistant shock.
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Affiliation(s)
- Alessandro Belletti
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy.
| | - Giovanni Landoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Vladimir V Lomivorotov
- Department of Anesthesiology and Intensive Care, E. Meshalkin National Medical Research Center, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Alessandro Oriani
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Silvia Ajello
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
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35
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Sakai H, Leong C. Prolonged functional life span of artificial red cells in blood circulation by repeated methylene blue injections. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:3123-3128. [PMID: 31352837 DOI: 10.1080/21691401.2019.1645157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Hemoglobin-vesicles (HbVs) are artificial oxygen carriers encapsulating purified and concentrated hemoglobin solution in phospholipid vesicles (liposomes) and their safety and efficacy as a transfusion alternative have been evaluated. Because of the absence of enzymatic methemoglobin reduction system in HbV, the level of ferric methemoglobin (metHb) increases gradually after intravenous administration. Our previous studies clarified that the glycolytic electron energies, charged as NAD(P)H in red blood cells (RBC), are donated to reduce metHb compartmentalized in HbV via a water-soluble electron mediator such as methylene blue [MB; 3,7-bis(dimethylamino)phenothiazinium chloride], which freely shuttle across both RBC biomembrane and HbV lipid membrane. Herein, we tried to test repeated injections of MB after the massive HbV administration (28 mL/kg) to hemorrhagic shocked Wistar rats (n = 3). MB was injected (3.1 mg/kg) at 7, 24 and 48 h after HbV administration. Every MB injection showed rapid reduction of metHb and gradual reversal increase. As a result, the functional life span of HbV was significantly extended over 60 h. It is expected that further optimization of injection scheduling will decrease the total amount of MB and prolong the functional life span of HbV.
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Affiliation(s)
- Hiromi Sakai
- a Department of Chemistry, Nara Medical University , Kashihara , Japan.,b Waseda Bioscience Research Institute in Singapore , Helios , Singapore
| | - Cassandra Leong
- b Waseda Bioscience Research Institute in Singapore , Helios , Singapore.,c School of Applied Science, Temasek Polytechnic , Singapore , Singapore.,d Department of Laboratory Medicine, Changi General Hospital , Singapore , Singapore
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Williams WH, Browne RC, Bui TP, Holmes AA, Thakar D. Case report on intravenous octreotide for the treatment of intraoperative vasoplegia following thymoma resection. SAGE Open Med Case Rep 2019; 7:2050313X19827744. [PMID: 30800305 PMCID: PMC6378416 DOI: 10.1177/2050313x19827744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 01/10/2019] [Indexed: 12/14/2022] Open
Abstract
Octreotide is a somatostatin analog known for its role in the treatment of acute variceal bleeding, enterocutaneous fistula and carcinoid syndrome. The reduction of portal pressure from splanchnic vasoconstriction has been attributed to the inhibition of nitric oxide synthesis, guanylate cyclase and release of glucagon. Octreotide has many therapeutic applications as a result of the ubiquitous nature of somatostatin receptors throughout the body. The effects of octreotide on vascular tone make it potentially useful in the treatment of intraoperative vasoplegia, hypotension with low systemic vascular resistance with preserved cardiac output that is refractory to adrenergic agonists. We present a case in which a patient undergoing thymoma resection developed vasoplegia that was effectively treated with octreotide. We believe that this case illustrates the need for further investigation on the potential efficacy of octreotide as an adjunct for the treatment of vasoplegia and other forms of shock.
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Affiliation(s)
| | | | - Thao P Bui
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - A Alex Holmes
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Dilip Thakar
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Nafea OE, Hassan HA. Comparative effectiveness of methylene blue versus intravenous lipid emulsion in a rodent model of amlodipine toxicity. Clin Toxicol (Phila) 2019; 57:784-789. [PMID: 30729824 DOI: 10.1080/15563650.2018.1560461] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Context: Calcium channel blocker (CCB) poisonings are the leading cause of death from cardiovascular medication-related overdoses. Current treatments (calcium salts, vasopressors, inotropes) are often insufficient. Intravenous lipid emulsion (ILE) and methylene blue (MB) show promise in treating CCB overdoses unresponsive to conventional therapy. Objective: To compare the effectiveness of MB versus ILE in a rodent model of amlodipine (AML) poisoning with survival as the primary outcome and hemodynamic parameters as secondary outcomes. Materials and methods: Sixty-four adult male albino rats were anesthetized and cannulated for non-invasive hemodynamic measurement. Rats received amlodipine intraperitoneally (42 mg/kg). We then divided the rats into four groups: AML only without antidote, AML followed by ILE (24.8 mL/kg over 10 min), AML followed by normal saline (an equivalent volume of ILE), and AML followed by IV MB (2 mg/kg over 5 min). They received study treatments at 5, 30, and 60 minutes from the start of the protocol and with observation for 2 hours. Results: Survival time in ILE group was greater than in the control and NS groups. Differences between ILE and MB and between MB and NS were not significant. Hemodynamic parameters significantly increased in ILE group compared to the MB group at the 30, 60 and 120 min assessments but not after induction of AML poisoning and at 5 min assessment. Conclusions: Survival was greatest in rats treated with ILE. Both MB and NS had little effect on survival when compared to control animals. Both ILE and MB improved hemodynamics.
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Affiliation(s)
- Ola E Nafea
- a Faculty of Medicine, Department of Forensic Medicine and Clinical Toxicology, Zagazig University , Zagazig , Egypt
| | - Heba A Hassan
- b Faculty of Medicine, Department of Clinical Pharmacology, Zagazig University , Zagazig , Egypt
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Burgdorff AM, Bucher M, Schumann J. Vasoplegia in patients with sepsis and septic shock: pathways and mechanisms. J Int Med Res 2018; 46:1303-1310. [PMID: 29332515 PMCID: PMC6091823 DOI: 10.1177/0300060517743836] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Sepsis is one of the most frequent causes of death among patients in intensive care units. Many therapeutic strategies have been assessed without the desired success rates. A key risk factor for death is hypotension due to vasodilatation with vascular hyposensitivity. However, the pathways underlying this process remain unclear. Endotoxemia induces inflammatory mediators, and this is followed by vasoplegia and decreased cardiac contractility. Although inhibition of these mediators diminishes mortality rates in animal models, this phenomenon has not been confirmed in humans. Downregulation of vasoconstrictive receptors such as angiotensin receptors, adrenergic and vasopressin receptors is seen in sepsis, which is associated with a hyporesponsiveness to vasoconstrictive mediators. Animal studies have verified that receptor downregulation is linked to the above-mentioned inflammatory mediators. Anti-inflammatory therapy with glucocorticoids reportedly improves responsiveness to catecholamines with higher survival in rats, although this has not been shown to be clinically significant in humans. Hence, there is an urgent need for in-depth studies investigating the underlying mechanisms of vasoplegia to allow for development of effective therapeutic strategies for the treatment of sepsis.
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Affiliation(s)
- A-M Burgdorff
- Department of Anesthesiology and Surgical Intensive Care, University Hospital Halle (Saale), Halle (Saale), Germany
| | - M Bucher
- Department of Anesthesiology and Surgical Intensive Care, University Hospital Halle (Saale), Halle (Saale), Germany
| | - J Schumann
- Department of Anesthesiology and Surgical Intensive Care, University Hospital Halle (Saale), Halle (Saale), Germany
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39
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Severe Undifferentiated Vasoplegic Shock Refractory to Vasoactive Agents Treated with Methylene Blue. Case Rep Crit Care 2017; 2017:8747326. [PMID: 29098094 PMCID: PMC5642875 DOI: 10.1155/2017/8747326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 08/27/2017] [Indexed: 11/17/2022] Open
Abstract
Methylene blue is a phenothiazine-related heterocyclic aromatic molecule presently used in the treatment of methemoglobinemia. Recently, it has been implicated in the treatment of severe refractory vasoplegic shock caused by anaphylaxis, sepsis, or postcardiopulmonary bypass. We present a case of a 27-year-old male with profound vasoplegic shock of unknown etiology which was refractory to vasopressors who responded within hours to a single dose of methylene blue. Additionally, we review the evidence of methylene blue's role in the treatment of shock. This case illustrates a diagnostic approach and treatment options in the setting of undifferentiated vasodilatory shock and outlines a new and emerging role for methylene blue in this clinical setting.
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40
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Abstract
Anaphylaxis is a systemic, life-threatening disorder triggered by mediators released by mast cells and basophils activated via allergic (IgE-mediated) or nonallergic (non-IgE-mediated) mechanisms. It is a rapidly evolving, multisystem process involving the integumentary, pulmonary, gastrointestinal, and cardiovascular systems. Anaphylaxis and angioedema are serious disorders that can lead to fatal airway obstruction and culminate in cardiorespiratory arrest, resulting in hypoxemia and/or shock. Often, these disorders can be appropriately managed in an outpatient setting; however, these conditions can be severe enough to warrant evaluation of the patient in the ED and in some cases, hospitalization, and management in an ICU. Reports suggest that underdiagnosis and undertreatment of anaphylaxis are common. Several new syndromes have been described recently including bird-egg, pork-cat, delayed allergy to mammalian meat and a diverse group of mast cell activation disorders. Conditions such as postural orthostatic tachycardia syndrome, carcinoid syndrome, Munchausen stridor, and factitious anaphylaxis can present similarly and need to be included in the differential diagnosis. Anaphylaxis is a clinical diagnosis, but plasma tryptase and urinary histamine levels are often elevated, allowing diagnostic confirmation; however, diagnostic testing should not delay treatment as results may not be immediately available. The sine qua non of treatment is avoidance of any known triggers and epinephrine, which should never be delayed if this disorder is suspected. Secondary treatments include fluids, bronchodilators, antihistamines, and glucocorticoids. Patients with cardiopulmonary arrest or airway or vascular compromise require mechanical ventilation, vasopressors, and other advanced life support in the ICU.
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Delport A, Harvey BH, Petzer A, Petzer JP. The monoamine oxidase inhibition properties of selected structural analogues of methylene blue. Toxicol Appl Pharmacol 2017; 325:1-8. [DOI: 10.1016/j.taap.2017.03.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 03/08/2017] [Accepted: 03/30/2017] [Indexed: 12/25/2022]
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Abstract
Anaphylaxis is an acute, systemic reaction mediated by immunoglobulin E hypersensitivity. Release of bioactive factors causes vasodilation and bronchiole constriction that can lead to hypotensive shock and asphyxiation. Differential diagnosis includes acute asthma, localized angioedema, syncope, and anxiety/panic attacks. Diagnostic tests lack specificity. Clinical diagnosis is based on demonstration of specific airway or cardiovascular compromise within proximity of allergen exposure. Treatment includes epinephrine, antihistamines, fluid resuscitation, and airway management. Prevention focuses on awareness/avoidance of triggers, implementation of personalized action plans, as well as immune modulation by desensitization in a closely controlled setting where available.
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Affiliation(s)
- Lorenzo Hernandez
- Department of Family Medicine, Mayo Clinic, 4500 San Pablo Rd, Jacksonville, FL 32224, USA
| | - Sarah Papalia
- Department of Family Medicine, Mayo Clinic, 4500 San Pablo Rd, Jacksonville, FL 32224, USA
| | - George G A Pujalte
- Department of Family Medicine, Mayo Clinic College of Medicine, Mayo Clinic, 4500 San Pablo Rd, Jacksonville, FL 32224, USA.
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Paul P, Mati SS, Bhattacharya SC, Kumar GS. Exploring the interaction of phenothiazinium dyes methylene blue, new methylene blue, azure A and azure B with tRNAPhe: spectroscopic, thermodynamic, voltammetric and molecular modeling approach. Phys Chem Chem Phys 2017; 19:6636-6653. [DOI: 10.1039/c6cp07888e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
RNA targeting by small molecules.
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Affiliation(s)
- Puja Paul
- Biophysical Chemistry Laboratory
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata 700 032
- India
| | | | | | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata 700 032
- India
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45
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Iqbal FM, Basit A, Salem F, Vidya R. Feeling blue, going green and finding other attractive alternatives: a case of biphasic anaphylaxis to patent blue and a literature review of alternative sentinel node localisation methods. BMJ Case Rep 2015; 2015:bcr-2015-213107. [PMID: 26670899 DOI: 10.1136/bcr-2015-213107] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Patent blue dye is used for sentinel lymph node localisation in order to stage the axilla in patients with breast cancer. Patent blue is one of the most common dyes used across the UK, however, the incidence of adverse effects seems to be increasing. This case highlights our experience of a biphasic anaphylactic reaction to patent blue dye, and we conduct a brief literature review of alternative and more novel methods to adequately visualise the lymphatics for sentinel lymph node biopsy.
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Affiliation(s)
| | - Abdul Basit
- Keele University, Newcastle under Lyme, Staffordshire, UK
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46
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Belletti A, Musu M, Silvetti S, Saleh O, Pasin L, Monaco F, Hajjar LA, Fominskiy E, Finco G, Zangrillo A, Landoni G. Non-Adrenergic Vasopressors in Patients with or at Risk for Vasodilatory Shock. A Systematic Review and Meta-Analysis of Randomized Trials. PLoS One 2015; 10:e0142605. [PMID: 26558621 PMCID: PMC4641698 DOI: 10.1371/journal.pone.0142605] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 10/23/2015] [Indexed: 11/20/2022] Open
Abstract
Introduction Hypotensive state is frequently observed in several critical conditions. If an adequate mean arterial pressure is not promptly restored, insufficient tissue perfusion and organ dysfunction may develop. Fluids and catecholamines are the cornerstone of critical hypotensive states management. Catecholamines side effects such as increased myocardial oxygen consumption and development of arrhythmias are well known. Thus, in recent years, interest in catecholamine-sparing agents such as vasopressin, terlipressin and methylene blue has increased; however, few randomized trials, mostly with small sample sizes, have been performed. We therefore conducted a meta-analysis of randomized trials to investigate the effect of non-catecholaminergic vasopressors on mortality. Methods PubMed, BioMed Central and Embase were searched (update December 31st, 2014) by two independent investigators. Inclusion criteria were: random allocation to treatment, at least one group receiving a non-catecholaminergic vasopressor, patients with or at risk for vasodilatory shock. Exclusion criteria were: crossover studies, pediatric population, non-human studies, studies published as abstract only, lack of data on mortality. Studied drugs were vasopressin, terlipressin and methylene blue. Primary endpoint was mortality at the longest follow-up available. Results A total of 1,608 patients from 20 studies were included in our analysis. The studied settings were sepsis (10/20 studies [50%]), cardiac surgery (7/20 [35%]), vasodilatory shock due to any cause (2/20 [19%]), and acute traumatic injury (1/20 [5%]). Overall, pooled estimates showed that treatment with non-catecholaminergic agents improves survival (278/810 [34.3%] versus 309/798 [38.7%], risk ratio = 0.88, 95% confidence interval = 0.79 to 0.98, p = 0.02). None of the drugs was associated with significant reduction in mortality when analyzed independently. Results were not confirmed when analyzing studies with a low risk of bias. Conclusions Catecholamine-sparing agents in patients with or at risk for vasodilatory shock may improve survival. Further researches on this topic are needed to confirm the finding.
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Affiliation(s)
- Alessandro Belletti
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Mario Musu
- Department of Medical Sciences “M. Aresu”, Cagliari University, Cagliari, Italy
| | - Simona Silvetti
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Omar Saleh
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Laura Pasin
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabrizio Monaco
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ludhmila A. Hajjar
- Surgical Intensive Care Unit, Department of Cardiopneumology, University of São Paulo, São Paulo, Brazil
| | - Evgeny Fominskiy
- Department of Anaesthesiology and Intensive Care, Academician EN Meshalkin Novosibirsk State Budget Research Institute of Circulation Pathology, Novosibirsk, Russia
| | - Gabriele Finco
- Department of Medical Sciences “M. Aresu”, Cagliari University, Cagliari, Italy
| | - Alberto Zangrillo
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Giovanni Landoni
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- * E-mail:
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Sunilkumar MN, Ajith TA, Parvathy VK. Acute dapsone poisoning in a 3-year-old child: Case report with review of literature. World J Clin Cases 2015; 3:911-914. [PMID: 26488029 PMCID: PMC4607811 DOI: 10.12998/wjcc.v3.i10.911] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 06/30/2015] [Accepted: 08/14/2015] [Indexed: 02/05/2023] Open
Abstract
Dapsone (DDS-diamino diphenyl sulphone) is a sulfone antibiotic being used for a variety of clinical conditions. Poisoning in children by DDS is rarely reported. Poisoning in acute cases will be frequently unrecognized due to relative lack of severe signs and symptoms. Methemoglobinemia is the major life-threatening situation associated with poisoning of DDS. Hence, any delay for medical attention can lead to increased rate of mortality. In this case, we describe acute DDS poisoning in a 3-year-old child and the successful management using intravenous methylene blue.
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Graham RE, Cartner M, Winearls J. A severe case of vasoplegic shock following metformin overdose successfully treated with methylene blue as a last line therapy. BMJ Case Rep 2015; 2015:bcr-2015-210229. [PMID: 26150642 DOI: 10.1136/bcr-2015-210229] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 44-year-old man presented to hospital 24 h after an intentional overdose of metformin and gliclazide. He had a critical metabolic acidosis on presentation with a pH of 6.88, and very rapidly deteriorated into distributive shock refractory to large volume fluid resuscitation and massive doses of vasopressors. We introduced a methylene blue infusion as a rescue therapy in an attempt to improve the patient's haemodynamics, which was successful. The patient made a full recovery with no long-term sequelae.
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Affiliation(s)
- Rachel Erin Graham
- Intensive Care Unit, Gold Coast University Hospital, Southport, Queensland, Australia
| | - Michaela Cartner
- Intensive Care Unit, Gold Coast University Hospital, Southport, Queensland, Australia
| | - James Winearls
- Intensive Care Unit, Gold Coast University Hospital, Southport, Queensland, Australia
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Kasimova KR, Sadasivam M, Landi G, Sarna T, Hamblin MR. Potentiation of photoinactivation of Gram-positive and Gram-negative bacteria mediated by six phenothiazinium dyes by addition of azide ion. Photochem Photobiol Sci 2015; 13:1541-8. [PMID: 25177833 DOI: 10.1039/c4pp00021h] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Antimicrobial photodynamic inactivation (APDI) using phenothiazinium dyes is mediated by reactive oxygen species consisting of a combination of singlet oxygen (quenched by azide), hydroxyl radicals and other reactive oxygen species. We recently showed that addition of sodium azide paradoxically potentiated APDI of Gram-positive and Gram-negative bacteria using methylene blue as the photosensitizer, and this was due to electron transfer to the dye triplet state from azide anion, producing azidyl radical. Here we compare this effect using six different homologous phenothiazinium dyes: methylene blue, toluidine blue O, new methylene blue, dimethylmethylene blue, azure A, and azure B. We found both significant potentiation (up to 2 logs) and also significant inhibition (>3 logs) of killing by adding 10 mM azide depending on Gram classification, washing the dye from the cells, and dye structure. Killing of E. coli was potentiated with all 6 dyes after a wash, while S. aureus killing was only potentiated by MB and TBO with a wash and DMMB with no wash. More lipophilic dyes (higher log P value, such as DMMB) were more likely to show potentiation. We conclude that the Type I photochemical mechanism (potentiation with azide) likely depends on the microenvironment, i.e. higher binding of dye to bacteria. Bacterial dye-binding is thought to be higher with Gram-negative compared to Gram-positive bacteria, when unbound dye has been washed away, and with more lipophilic dyes.
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Affiliation(s)
- Kamola R Kasimova
- The Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA.
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50
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Dinc S, Caydere M, Akgul G, Yenidogan E, Hücümenoglu S, Rajesh M. Methylene Blue inhibits the inflammatory process of the acetic acid-induced colitis in the rat colonic mucosa. Int Surg 2015; 100:1364-1374. [PMID: 26062761 DOI: 10.9738/intsurg-d-15-00118.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Inflammatory bowel disease is a serious health problem. Although it has been widely investigated, treatment of inflammatory bowel diseases currently remains as a challenging clinical problem. Over production of nitric oxide has been demonstrated to cause tissue damage and inflammation. In this study, the effect of methylene blue (MB), a well-known inhibitor of nitric oxide synthesis, was investigated in acetic acid (AA)-induced colitis model in Sprague-Dawley rats. Eighty male rats randomized into 4 groups (control, control MB, colitis, colitis + MB). AA was applied to groups 3 and 4. MB was added into group 2 and 4. Three days later, animals were sacrificed and 8 cm distal colonic segment resected and the specimens are examined using macroscopical, histological, and biochemical methods. The results of the macroscopic and microscopic examination showed that in group 4 the mucosal damage and inflammation score significantly lower than group 3. Increased intestinal permeability in acetic acid-administered group was significantly reversed by MB application. Myeloperoxidase activity and malondialdehyde levels increased significantly, while superoxide dismutase and catalase activities were suppressed after AA-administration. These biochemical parameters were reversed in MB-treated group. Administration of acetic acid resulted in increased levels of tumor necrosis factor-α, interleukin-1β, interleukin-6, total nitrite/nitrate levels and nitric oxide synthase activity. These biochemical alterations were significantly reversed by MB application also. In conclusion, our results indicate that MB decreases the level of nitric oxide and decreases inflammation in acetic acid-induced colitis.
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Affiliation(s)
- Soykan Dinc
- b ankara research and traing hospital, ankara, 06800, Turkey
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