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Gill JR. The Canceling of Excited Delirium. Am J Forensic Med Pathol 2024; 45:98-102. [PMID: 38497613 DOI: 10.1097/paf.0000000000000934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Affiliation(s)
- James R Gill
- From the Office of the Chief Medical Examiner, CT
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2
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Peruch M, Giacomello E, Radaelli D, Concato M, Addobbati R, Fluca AL, Aleksova A, D’Errico S. Subcellular Effectors of Cocaine Cardiotoxicity: All Roads Lead to Mitochondria-A Systematic Review of the Literature. Int J Mol Sci 2023; 24:14517. [PMID: 37833964 PMCID: PMC10573028 DOI: 10.3390/ijms241914517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Cocaine abuse is a serious public health problem as this drug exerts a plethora of functional and histopathological changes that potentially lead to death. Cocaine causes complex multiorgan toxicity, including in the heart where the blockade of the sodium channels causes increased catecholamine levels and alteration in calcium homeostasis, thus inducing an increased oxygen demand. Moreover, there is evidence to suggest that mitochondria alterations play a crucial role in the development of cocaine cardiotoxicity. We performed a systematic review according to the Preferred Reporting Items for Systemic Reviews and Meta-Analysis (PRISMA) scheme to evaluate the mitochondrial mechanisms determining cocaine cardiotoxicity. Among the initial 106 articles from the Pubmed database and the 17 articles identified through citation searching, 14 final relevant studies were extensively reviewed. Thirteen articles included animal models and reported the alteration of specific mitochondria-dependent mechanisms such as reduced energy production, imbalance of membrane potential, increased oxidative stress, and promotion of apoptosis. However, only one study evaluated human cocaine overdose samples and observed the role of cocaine in oxidative stress and the induction of apoptosis though mitochondria. Understanding the complex processes mediated by mitochondria through forensic analysis and experimental models is crucial for identifying potential therapeutic targets to mitigate or reverse cocaine cardiotoxicity in humans.
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Affiliation(s)
- Michela Peruch
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
| | - Emiliana Giacomello
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
| | - Davide Radaelli
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
| | - Monica Concato
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
| | - Riccardo Addobbati
- Institute for Maternal and Child Health, IRCCS “Burlo Garofolo”, 34137 Trieste, Italy;
| | - Alessandra Lucia Fluca
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina, 34149 Trieste, Italy
| | - Aneta Aleksova
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina, 34149 Trieste, Italy
| | - Stefano D’Errico
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy; (M.P.); (E.G.); (D.R.); (M.C.); (A.L.F.); (A.A.)
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Lin AL, Nah G, Tang JJ, Vittinghoff E, Dewland TA, Marcus GM. Cannabis, cocaine, methamphetamine, and opiates increase the risk of incident atrial fibrillation. Eur Heart J 2022; 43:4933-4942. [PMID: 36257330 DOI: 10.1093/eurheartj/ehac558] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 08/18/2022] [Accepted: 09/26/2022] [Indexed: 01/12/2023] Open
Abstract
AIMS Atrial fibrillation (AF) is now regarded as a preventable disease, requiring a search for modifiable risk factors. With legalization of cannabis and more lenient laws regarding the use of other illicit substances, investigation into the potential effects of methamphetamine, cocaine, opiate, and cannabis exposure on incident AF is needed. METHODS AND RESULTS Using Office of Statewide Health Planning and Development databases, a longitudinal analysis was performed of adult Californians ≥18 years of age who received care in an emergency department, outpatient surgery facility, or hospital from 1 January 2005 to 31 December 2015. Associations between healthcare coding for the use of each substance and a new AF diagnosis were assessed. Among 23,561,884 patients, 98 271 used methamphetamine, 48 701 used cocaine, 10 032 used opiates, and 132 834 used cannabis. Of the total population, 998 747 patients (4.2%) developed incident AF during the study period. After adjusting for potential confounders and mediators, use of methamphetamines, cocaine, opiates, and cannabis was each associated with increased incidence of AF: hazard ratios 1.86 [95% confidence interval (CI) 1.81-1.92], 1.61 (95% CI 1.55-1.68), 1.74 (95% CI 1.62-1.87), and 1.35 (95% CI 1.30-1.40), respectively. Negative control analyses in the same cohort failed to reveal similarly consistent positive relationships. CONCLUSION Methamphetamine, cocaine, opiate, and cannabis uses were each associated with increased risk of developing incident AF. Efforts to mitigate the use of these substances may represent a novel approach to AF prevention.
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Affiliation(s)
- Anthony L Lin
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Gregory Nah
- Division of Cardiology, Department of Medicine, University of California, 505 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Janet J Tang
- Division of Cardiology, Department of Medicine, University of California, 505 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Thomas A Dewland
- Division of Cardiology, Department of Medicine, University of California, 505 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Gregory M Marcus
- Division of Cardiology, Department of Medicine, University of California, 505 Parnassus Avenue, San Francisco, CA 94143, USA
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4
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Lucyk SN. Acute Cardiovascular Toxicity of Cocaine. Can J Cardiol 2022; 38:1384-1394. [PMID: 35697321 DOI: 10.1016/j.cjca.2022.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/22/2022] [Accepted: 05/02/2022] [Indexed: 11/27/2022] Open
Abstract
Cocaine is one of the most commonly abused drugs and represents a major public health concern. Cocaine users frequently present to the emergency department, with chest pain being the most common presenting complaint. The incidence of acute myocardial infarction in patients with cocaine-associated chest pain is often quoted as 6%, but it is highly variable depending on the included population. Risk assessment can be challenging in these patients; serial assessment of electrocardiograms and troponins is often required. This review focuses on the assessment and management of patients presenting with cocaine-associated chest pain and cardiotoxicity. Specific treatments are discussed, including benzodiazepines, nitroglycerin, calcium channel blockers, and phentolamine, and how treatment priorities differ from patients with noncocaine presentations. The use of beta-blockers in this population remains controversial, and the literature around its use is reviewed. The most recent literature and recommendations for the use of percutaneous coronary intervention and fibrinolytics in cocaine-associated myocardial infarction is discussed as well. Cocaine-associated dysrhythmias are suggested to be the cause of sudden cardiac death in some users. The pathophysiology and evidence-based treatments for dysrhythmias are reviewed. This review provides evidence-based recommendations for the assessment and management of patients presenting with cocaine-associated cardiovascular toxicity.
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Affiliation(s)
- Scott N Lucyk
- Poison and Drug Information Service, Alberta Health Services, Calgary, Alberta, Canada; Department of Emergency Medicine, University of Calgary, Calgary, Alberta, Canada; Section of Clinical Pharmacology and Toxicology, Alberta Health Services, Calgary, Alberta, Canada.
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5
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Noori MAM, Fichadiya H, Jesani S, Abid F, Sachdeva N, Saeed H, Jawed Q, Elkattawy S, Joshi M. A Rare yet Morbid Complication of Cocaine Use: Brugada Type 1 on Electrocardiogram. Cureus 2022; 14:e24309. [PMID: 35602832 PMCID: PMC9122013 DOI: 10.7759/cureus.24309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2022] [Indexed: 11/05/2022] Open
Abstract
Cocaine is considered a leading non-opioid cause of drug overdose in the US. It acts as a sympathomimetic and increases the amount of catecholamines, thereby increasing the risk of ventricular irritability and resultant arrhythmias. Its sodium (Na) channel blockage is the principal mechanism behind the Brugada pattern on an electrocardiogram (ECG), which is often transient but is indistinguishable from that of Brugada syndrome, the autosomal dominant channelopathy. We are presenting a case of a 32-year-old male with a history of cocaine and nicotine abuse, who sought medical attention for sudden-onset palpitations and pressure-like chest pain after having snorted an impressive amount of cocaine. His ECG depicted a classical Brugada pattern with ST-elevation with T inversion in V1; however, previous ECGs were normal without ST changes, signifying the Brugada pattern unmasked by cocaine use. Other investigations including stress tests and nuclear imaging were equivocal. His symptoms as well as the ECG pattern reverted to baseline signifying the presence of Brugada phenotype in the absence of channelopathy. Hence, as a sodium channel blocker, cocaine may unmask latent Brugada syndrome in asymptomatic patients without a family history. Recognizing Brugada syndrome on ECG is vital to avoid misdiagnosis and mistreatment of the patient with and without a genetic predisposition.
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6
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Gangu K, Bobba A, Basida SD, Avula S, Chela H, Singh S. Trends of Cocaine Use and Manifestations in Hospitalized Patients: A Cross-Sectional Study. Cureus 2022; 14:e22090. [PMID: 35165645 PMCID: PMC8830384 DOI: 10.7759/cureus.22090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2022] [Indexed: 11/07/2022] Open
Abstract
Objective About 41 million people aged ≥18 years reported lifetime use of cocaine, and 5.4 million people reported having used cocaine in 2019. We aim to identify trends of cocaine use, manifestations, concomitant drug use, and financial burden on health care among hospitalized patients. Methods We utilized National Inpatient Sample from years 2006-2018. Patients with age ≥18 years, admitted to the hospital with a diagnosis of cocaine abuse, dependence, poisoning, or unspecified cocaine use were included in the study. We used ICD-9 Clinical Modification (CM) and ICD-10-CM codes to retrieve patient samples and comorbid conditions. The primary outcome was the trend in cocaine use among hospitalized patients from the year 2006 to 2018. Cochran-Mantel-Haenszel test was used to assess the significance of trends. Results In the year 2006, the prevalence of cocaine abuse among hospitalized patients was 10,751 per million with an initial decline to 7,451 per million in 2012 and a subsequent increase to 11,891 per million hospitalized patients in 2018 with p =0.01. The majority of patients admitted were older than 50 years (43.27%), and a greater percentage of patients were males. All ethnicities showed a rising trend in the use of cocaine except for Native Americans. Cardiovascular effects, neuropsychiatric and infectious manifestations in hospitalized patients with cocaine abuse showed a consistent increase from year 2006 to 2018 with p <0.001. Conclusions There is a recent uptrend in cocaine use among hospital admissions in the US from 2006 to 2018 with an increased rate of systemic manifestations. This highlights the impact of cocaine use on the health system and the dire need to address this growing problem.
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Affiliation(s)
- Karthik Gangu
- Department of Internal Medicine, University of Missouri, Columbia, USA
| | - Aniesh Bobba
- Department of Internal Medicine, John H. Stroger, Jr. Hospital of Cook County, Ohio, USA
| | - Sanket D Basida
- Graduate Student, Pandit Deendayal Upadhyay Medical College, Rajkot, IND
| | - Sindhu Avula
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas, USA
| | - Harleen Chela
- Department of Internal Medicine, University of Missouri, Columbia, USA
| | - Simranjit Singh
- Internal Medicine, Indiana University School of Medicine, Indianapolis, USA
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Dominic P, Ahmad J, Awwab H, Bhuiyan MS, Kevil CG, Goeders NE, Murnane KS, Patterson JC, Sandau KE, Gopinathannair R, Olshansky B. Stimulant Drugs of Abuse and Cardiac Arrhythmias. Circ Arrhythm Electrophysiol 2022; 15:e010273. [PMID: 34961335 PMCID: PMC8766923 DOI: 10.1161/circep.121.010273] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nonmedical use of prescription and nonprescription drugs is a worldwide epidemic, rapidly growing in magnitude with deaths because of overdose and chronic use. A vast majority of these drugs are stimulants that have various effects on the cardiovascular system including the cardiac rhythm. Drugs, like cocaine and methamphetamine, have measured effects on the conduction system and through several direct and indirect pathways, utilizing multiple second messenger systems, change the structural and electrical substrate of the heart, thereby promoting cardiac dysrhythmias. Substituted amphetamines and cocaine affect the expression and activation kinetics of multiple ion channels and calcium signaling proteins resulting in EKG changes, and atrial and ventricular brady and tachyarrhythmias. Preexisting conditions cause substrate changes in the heart, which decrease the threshold for such drug-induced cardiac arrhythmias. The treatment of cardiac arrhythmias in patients who take drugs of abuse may be specialized and will require an understanding of the unique underlying mechanisms and necessitates a multidisciplinary approach. The use of primary or secondary prevention defibrillators in drug abusers with chronic systolic heart failure is both sensitive and controversial. This review provides a broad overview of cardiac arrhythmias associated with stimulant substance abuse and their management.
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Affiliation(s)
- Paari Dominic
- Center of Excellence for Cardiovascular Diseases & Sciences, Louisiana State University Health Sciences Center-Shreveport, LA, Department of Medicine, Louisiana State University Health Sciences Center-Shreveport, LA
| | - Javaria Ahmad
- Department of Medicine, Louisiana State University Health Sciences Center-Shreveport, LA
| | - Hajra Awwab
- Center of Excellence for Cardiovascular Diseases & Sciences, Louisiana State University Health Sciences Center-Shreveport, LA, Department of Medicine, Louisiana State University Health Sciences Center-Shreveport, LA
| | - Md. Shenuarin Bhuiyan
- Center of Excellence for Cardiovascular Diseases & Sciences, Louisiana State University Health Sciences Center-Shreveport, LA, Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, Department of Molecular and Cellular Physiology Louisiana State University Health Sciences Center, Shreveport, LA
| | - Christopher G. Kevil
- Center of Excellence for Cardiovascular Diseases & Sciences, Louisiana State University Health Sciences Center-Shreveport, LA, Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, Department of Molecular and Cellular Physiology Louisiana State University Health Sciences Center, Shreveport, LA, Department of Cellular Biology and Anatomy Louisiana State University Health Sciences Center, Shreveport, LA
| | - Nicholas E. Goeders
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, LA
| | - Kevin S. Murnane
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, LA, Department of Psychiatry, Louisiana State University Health Sciences Center, Shreveport, LA
| | - James C. Patterson
- Department of Psychiatry, Louisiana State University Health Sciences Center, Shreveport, LA
| | | | - Rakesh Gopinathannair
- The Kansas City Heart Rhythm Institute (KCHRI) & Research Foundation, Overland Park Regional Medical Center, Overland Park, KS
| | - Brian Olshansky
- University of Iowa Carver College of Medicine, Iowa City, IA
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Mladěnka P, Applová L, Patočka J, Costa VM, Remiao F, Pourová J, Mladěnka A, Karlíčková J, Jahodář L, Vopršalová M, Varner KJ, Štěrba M. Comprehensive review of cardiovascular toxicity of drugs and related agents. Med Res Rev 2018; 38:1332-1403. [PMID: 29315692 PMCID: PMC6033155 DOI: 10.1002/med.21476] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/20/2017] [Accepted: 11/16/2017] [Indexed: 12/12/2022]
Abstract
Cardiovascular diseases are a leading cause of morbidity and mortality in most developed countries of the world. Pharmaceuticals, illicit drugs, and toxins can significantly contribute to the overall cardiovascular burden and thus deserve attention. The present article is a systematic overview of drugs that may induce distinct cardiovascular toxicity. The compounds are classified into agents that have significant effects on the heart, blood vessels, or both. The mechanism(s) of toxic action are discussed and treatment modalities are briefly mentioned in relevant cases. Due to the large number of clinically relevant compounds discussed, this article could be of interest to a broad audience including pharmacologists and toxicologists, pharmacists, physicians, and medicinal chemists. Particular emphasis is given to clinically relevant topics including the cardiovascular toxicity of illicit sympathomimetic drugs (e.g., cocaine, amphetamines, cathinones), drugs that prolong the QT interval, antidysrhythmic drugs, digoxin and other cardioactive steroids, beta-blockers, calcium channel blockers, female hormones, nonsteroidal anti-inflammatory, and anticancer compounds encompassing anthracyclines and novel targeted therapy interfering with the HER2 or the vascular endothelial growth factor pathway.
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Affiliation(s)
- Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
| | - Lenka Applová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
| | - Jiří Patočka
- Department of Radiology and Toxicology, Faculty of Health and Social StudiesUniversity of South BohemiaČeské BudějoviceCzech Republic
- Biomedical Research CentreUniversity HospitalHradec KraloveCzech Republic
| | - Vera Marisa Costa
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of PharmacyUniversity of PortoPortoPortugal
| | - Fernando Remiao
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of PharmacyUniversity of PortoPortoPortugal
| | - Jana Pourová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
| | - Aleš Mladěnka
- Oncogynaecologic Center, Department of Gynecology and ObstetricsUniversity HospitalOstravaCzech Republic
| | - Jana Karlíčková
- Department of Pharmaceutical Botany and Ecology, Faculty of Pharmacy in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
| | - Luděk Jahodář
- Department of Pharmaceutical Botany and Ecology, Faculty of Pharmacy in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
| | - Marie Vopršalová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
| | - Kurt J. Varner
- Department of PharmacologyLouisiana State University Health Sciences CenterNew OrleansLAUSA
| | - Martin Štěrba
- Department of Pharmacology, Faculty of Medicine in Hradec KrálovéCharles UniversityHradec KrálovéCzech Republic
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Carreón-Garcidueñas M, Godínez-Hernández D, Alvarado-Gómez N, Ortega-Varela LF, Cervantes-Durán C, Gauthereau-Torres MY. Participation of voltage-gated sodium and calcium channels in the acute cardiac effects of toluene. Toxicol Mech Methods 2018; 28:670-677. [PMID: 29925288 DOI: 10.1080/15376516.2018.1491664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Inhaling solvents can lead to occurrence of cardiac arrhythmias and sudden sniffing death. Mechanisms related to this phenomenon are not fully understood. The purpose of this study was to investigate the effect of acute toluene exposure on heart reactivity to epinephrine and the participation of voltage-gated sodium and calcium channels. We found that acute toluene exposure increased perfusion pressure, left ventricular developed pressure, and heart rate. These actions were inhibited by lidocaine and nifedipine. Our results suggest that acute toluene exposure modify voltage-gated sodium and calcium channel function and expression likely due to a cardiac adrenergic mechanism and these effects could be participating, at least in part, in the presence of cardiac arrhythmias. To our best knowledge, this is the first report to establish a direct participation of voltage-gated Na+ and Ca2+ channels, toluene and epinephrine on cardiac function in rats.
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Affiliation(s)
- M Carreón-Garcidueñas
- a Instituto de Investigaciones Químico Biológicas , Universidad Michoacana de San Nicolás de Hidalgo, Francisco J. Mújica s/n, Edif. B-3, Ciudad Universitaria , Morelia , Mexico
| | - D Godínez-Hernández
- a Instituto de Investigaciones Químico Biológicas , Universidad Michoacana de San Nicolás de Hidalgo, Francisco J. Mújica s/n, Edif. B-3, Ciudad Universitaria , Morelia , Mexico
| | - N Alvarado-Gómez
- a Instituto de Investigaciones Químico Biológicas , Universidad Michoacana de San Nicolás de Hidalgo, Francisco J. Mújica s/n, Edif. B-3, Ciudad Universitaria , Morelia , Mexico
| | - L F Ortega-Varela
- b Escuela de Enfermería y Salud Pública , Universidad Michoacana de San Nicolás de Hidalgo , Morelia , Mexico
| | - C Cervantes-Durán
- c Facultad de Ciencias Médicas y Biológicas "Dr. Ignacio Chávez" , Universidad Michoacana de San Nicolás de Hidalgo, Dr. Rafael Carrillo esquina Dr. Salvador González Herrejón, Col. Bosque Cuauhtémoc , Morelia , Mexico
| | - M Y Gauthereau-Torres
- c Facultad de Ciencias Médicas y Biológicas "Dr. Ignacio Chávez" , Universidad Michoacana de San Nicolás de Hidalgo, Dr. Rafael Carrillo esquina Dr. Salvador González Herrejón, Col. Bosque Cuauhtémoc , Morelia , Mexico
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Sandau KE, Funk M, Auerbach A, Barsness GW, Blum K, Cvach M, Lampert R, May JL, McDaniel GM, Perez MV, Sendelbach S, Sommargren CE, Wang PJ. Update to Practice Standards for Electrocardiographic Monitoring in Hospital Settings: A Scientific Statement From the American Heart Association. Circulation 2017; 136:e273-e344. [DOI: 10.1161/cir.0000000000000527] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Bébarová M, Horáková Z, Kula R. Addictive drugs, arrhythmias, and cardiac inward rectifiers. Europace 2017; 19:346-355. [PMID: 27302393 DOI: 10.1093/europace/euw071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/20/2016] [Indexed: 12/30/2022] Open
Abstract
In many addictive drugs including alcohol and nicotine, proarrhythmic effects were reported. This review provides an overview of the current knowledge in this field (with a focus on the inward rectifier potassium currents) to promote the lacking data and appeal for their completion, thus, to improve understanding of the proarrhythmic potential of addictive drugs.
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12
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Havakuk O, Rezkalla SH, Kloner RA. The Cardiovascular Effects of Cocaine. J Am Coll Cardiol 2017; 70:101-113. [PMID: 28662796 DOI: 10.1016/j.jacc.2017.05.014] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/26/2017] [Accepted: 05/08/2017] [Indexed: 10/19/2022]
Abstract
Cocaine is the leading cause for drug-abuse-related visits to emergency departments, most of which are due to cardiovascular complaints. Through its diverse pathophysiological mechanisms, cocaine exerts various adverse effects on the cardiovascular system, many times with grave results. Described here are the varied cardiovascular effects of cocaine, areas of controversy, and therapeutic options.
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Affiliation(s)
- Ofer Havakuk
- Department of Cardiology, Keck School of Medicine, University of Southern California, Los Angeles, California; Department of Cardiology, Tel Aviv Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Shereif H Rezkalla
- Department of Cardiology and Marshfield Clinic Research Institute, Marshfield, Wisconsin
| | - Robert A Kloner
- Department of Cardiology, Keck School of Medicine, University of Southern California, Los Angeles, California; Huntington Medical Research Institute, Los Angeles, California.
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14
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Furlanello F, Serdoz LV, Cappato R, De Ambroggi L. Illicit drugs and cardiac arrhythmias in athletes. ACTA ACUST UNITED AC 2016; 14:487-94. [PMID: 17667636 DOI: 10.1097/hjr.0b013e3280ecfe3e] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The current management of athletes with cardiac arrhythmias has become complicated by the widespread use of illicit drugs, which can be arrhythmogenic.The World Anti-Doping Agency annually updates a list of prohibited substances and methods banned by the International Olympic Committee that includes different classes of substances namely, anabolic androgenic steroids, hormones and related substances, β2-agonists, diuretics, stimulants, narcotics, cannabinoids, glucocorticosteroids, alcohol, β-blockers and others. Almost all illicit drugs may cause, through a direct or indirect arrhythmogenic effect, a wide range of cardiac arrhythmias (focal or reentry type, supraventricular and/or ventricular) that can even be lethal and which are frequently sport activity related.A large use of illicit drugs has been documented in competitive athletes, but the arrhythmogenic effect of specific substances is not precisely known. Precipitation of cardiac arrhythmias, particularly in the presence of a latent electrophysiologic substrate including some inherited cardiomyopathies, at risk of sudden death or due to long-term consumption of the substances, should raise the suspicion that illicit drugs may be a possible cause and lead cardiologists to investigate carefully this relationship and appropriately prevent the clinical consequences.
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Affiliation(s)
- Francesco Furlanello
- Arrhythmias and Electrophysiology Center, Department of Cardiology, IRCCS Policlinico San Donato, University of Milan, Italy.
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Havakuk O, Viskin S. A Tale of 2 Diseases: The History of Long-QT Syndrome and Brugada Syndrome. J Am Coll Cardiol 2016; 67:100-8. [PMID: 26764071 DOI: 10.1016/j.jacc.2015.10.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/18/2015] [Accepted: 10/06/2015] [Indexed: 12/21/2022]
Abstract
The Brugada syndrome (BrS) and long-QT syndrome (LQTS) present as congenital or acquired disorders with diagnostic electrocardiograms (ST-segment elevation and prolonged QT interval, respectively) and increased risk for malignant arrhythmias. Our understanding of the 2 disease forms (congenital vs. acquired) differs. A female patient on quinidine for atrial fibrillation who develops ventricular fibrillation is diagnosed with "acquired LQTS" and is discharged with no therapy other than instructions to avoid QT-prolonging medications. In contrast, an asymptomatic male patient who develops a Brugada electrocardiogram on flecainide is diagnosed with "asymptomatic BrS" and could be referred for an electrophysiological evaluation that could result in defibrillator implantation. The typical patient undergoing defibrillator implantation for BrS is asymptomatic but has a Brugada electrocardiogram provoked by a drug. The authors describe how the histories of LQTS and BrS went through the same stages, but in different sequences, leading to different conclusions.
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Affiliation(s)
- Ofer Havakuk
- Tel Aviv Sourasky Medical Center and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sami Viskin
- Tel Aviv Sourasky Medical Center and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
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Out-of-hospital cardiac arrest after acute cocaine intoxication associated with Brugada ECG patterns: Insights into physiopathologic mechanisms and implications for therapy. Int J Cardiol 2015; 195:245-9. [DOI: 10.1016/j.ijcard.2015.04.249] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 04/30/2015] [Indexed: 11/16/2022]
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Stankowski RV, Kloner RA, Rezkalla SH. Cardiovascular consequences of cocaine use. Trends Cardiovasc Med 2015; 25:517-26. [DOI: 10.1016/j.tcm.2014.12.013] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 12/03/2014] [Accepted: 12/17/2014] [Indexed: 11/28/2022]
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Potential role of cardiac calsequestrin in the lethal arrhythmic effects of cocaine. Drug Alcohol Depend 2013; 133:344-51. [PMID: 23876860 PMCID: PMC4097383 DOI: 10.1016/j.drugalcdep.2013.06.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 06/11/2013] [Accepted: 06/14/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND Cocaine-related deaths are continuously rising and its overdose is often associated with lethal cardiotoxic effects. METHODS AND RESULTS Our approach, employing isothermal titration calorimetry (ITC) and light scattering in parallel, has confirmed the significant affinity of human cardiac calsequestrin (CASQ2) for cocaine. Calsequestrin (CASQ) is a major Ca(2+)-storage protein within the sarcoplasmic reticulum (SR) of both cardiac and skeletal muscles. CASQ acts as a Ca(2+) buffer and Ca(2+)-channel regulator through its unique Ca(2+)-dependent oligomerization. Equilibrium dialysis and atomic absorption spectroscopy experiments illustrated the perturbational effect of cocaine on CASQ2 polymerization, resulting in substantial reduction of its Ca(2+)-binding capacity. We also confirmed the accumulation of cocaine in rat heart tissue and the substantial effects cocaine has on cultured C2C12 cells. The same experiments were performed with methamphetamine as a control, which displayed neither affinity for CASQ2 nor any significant effects on its function. Since cocaine did not have any direct effect on the Ca(2+)-release channel judging from our single channel recordings, these studies provide new insights into how cocaine may interfere with the normal E-C coupling mechanism with lethal arrhythmogenic consequences. CONCLUSION We propose that cocaine accumulates in SR through its affinity for CASQ2 and affects both SR Ca(2+) storage and release by altering the normal CASQ2 Ca(2+)-dependent polymerization. By this mechanism, cocaine use could produce serious cardiac problems, especially in people who have genetically-impaired CASQ2, defects in other E-C coupling components, or compromised cocaine metabolism and clearance.
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LETSAS KONSTANTINOSP, KAVVOURAS CHARALAMPOS, KOLLIAS GEORGE, TSIKRIKAS SPYRIDON, KORANTZOPOULOS PANAGIOTIS, EFREMIDIS MICHALIS, SIDERIS ANTONIOS. Drug-Induced Brugada Syndrome by Noncardiac Agents. Pacing Clin Electrophysiol 2013; 36:1570-7. [DOI: 10.1111/pace.12234] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 05/31/2013] [Accepted: 06/03/2013] [Indexed: 11/30/2022]
Affiliation(s)
| | - CHARALAMPOS KAVVOURAS
- Second Department of Cardiology; Evangelismos General Hospital of Athens; Athens Greece
| | - GEORGE KOLLIAS
- Second Department of Cardiology; Evangelismos General Hospital of Athens; Athens Greece
| | - SPYRIDON TSIKRIKAS
- Second Department of Cardiology; Evangelismos General Hospital of Athens; Athens Greece
| | | | - MICHALIS EFREMIDIS
- Second Department of Cardiology; Evangelismos General Hospital of Athens; Athens Greece
| | - ANTONIOS SIDERIS
- Second Department of Cardiology; Evangelismos General Hospital of Athens; Athens Greece
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Ramirez FD, Femenía F, Simpson CS, Redfearn DP, Michael KA, Baranchuk A. Electrocardiographic findings associated with cocaine use in humans: a systematic review. Expert Rev Cardiovasc Ther 2012; 10:105-27. [PMID: 22149529 DOI: 10.1586/erc.11.152] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cocaine remains highly prevalent and accessible in the general population, continues to represent one of the most commonly reported substances in drug-related presentations to emergency departments, and is frequently implicated in drug-related deaths. Fatal cardiac arrhythmias are often suspected in the latter cases. In spite of this, its complex effects on the human cardiac conduction system remain poorly elucidated. In this article we sought to systematically review the medical literature to identify the electrocardiographic findings that have been linked to cocaine use in humans in an effort to highlight what physicians can expect to encounter when managing patients using the drug. The evidence is discussed, common findings are emphasized and clinical recommendations are proposed.
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Affiliation(s)
- F Daniel Ramirez
- Cardiac Electrophysiology and Pacing, Arrhythmia Service, Kingston General Hospital, Queen's University, Kingston, ON, K7L 2V7, Canada
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O'Leary ME, Hancox JC. Role of voltage-gated sodium, potassium and calcium channels in the development of cocaine-associated cardiac arrhythmias. Br J Clin Pharmacol 2011; 69:427-42. [PMID: 20573078 DOI: 10.1111/j.1365-2125.2010.03629.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cocaine is a highly active stimulant that alters dopamine metabolism in the central nervous system resulting in a feeling of euphoria that with time can lead to addictive behaviours. Cocaine has numerous deleterious effects in humans including seizures, vasoconstriction, ischaemia, increased heart rate and blood pressure, cardiac arrhythmias and sudden death. The cardiotoxic effects of cocaine are indirectly mediated by an increase in sympathomimetic stimulation to the heart and coronary vasculature and by a direct effect on the ion channels responsible for maintaining the electrical excitability of the heart. The direct and indirect effects of cocaine work in tandem to disrupt the co-ordinated electrical activity of the heart and have been associated with life-threatening cardiac arrhythmias. This review focuses on the direct effects of cocaine on cardiac ion channels, with particular focus on sodium, potassium and calcium channels, and on the contributions of these channels to cocaine-induced arrhythmias. Companion articles in this edition of the journal examine the epidemiology of cocaine use (Wood & Dargan) and the treatment of cocaine-associated arrhythmias (Hoffmann).
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Affiliation(s)
- Michael E O'Leary
- Department of Pathology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA.
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Affiliation(s)
- Bryan G Schwartz
- Heart Institute, Good Samaritan Hospital, 1225 Wilshire Blvd, Los Angeles, CA 90017-2395, USA
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Kleinman ME, Chameides L, Schexnayder SM, Samson RA, Hazinski MF, Atkins DL, Berg MD, de Caen AR, Fink EL, Freid EB, Hickey RW, Marino BS, Nadkarni VM, Proctor LT, Qureshi FA, Sartorelli K, Topjian A, van der Jagt EW, Zaritsky AL. Part 14: Pediatric Advanced Life Support. Circulation 2010; 122:S876-908. [DOI: 10.1161/circulationaha.110.971101] [Citation(s) in RCA: 473] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
Organ toxicity caused by poisons or drug therapy is diverse and may not be commonly encountered clinically. In general, commonly encountered conditions caused by drug/toxin pharmacology can be classified into 7 categories by shared mechanisms of organ injury. This review of drug/toxin-induced injury discusses drug or toxin-induced pathology that the clinician may encounter and therapeutic approaches to these syndromes.
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&NA;. Cocaine use is associated with a number of life-threatening cardiovascular complications that require careful treatment. DRUGS & THERAPY PERSPECTIVES 2010. [DOI: 10.2165/11204130-000000000-00000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Butt AA, Xiaoqiang W, Budoff M, Leaf D, Kuller LH, Justice AC. Hepatitis C virus infection and the risk of coronary disease. Clin Infect Dis 2009; 49:225-32. [PMID: 19508169 DOI: 10.1086/599371] [Citation(s) in RCA: 222] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The association between hepatitis C virus (HCV) infection and coronary artery disease (CAD) is controversial. We conducted this study to determine and quantify this association. METHODS We used an established, national, observational cohort of all HCV-infected veterans receiving care at all Veterans Affairs facilities, the Electronically Retrieved Cohort of HCV Infected Veterans, to identify HCV-infected subjects and HCV-uninfected control subjects. We used the Cox proportional-hazards model to determine the risk of CAD among HCV-infected subjects and control subjects. RESULTS We identified 82,083 HCV-infected and 89,582 HCV-uninfected subjects. HCV-infected subjects were less likely to have hypertension, hyperlipidemia, and diabetes but were more likely to abuse alcohol and drugs and to have renal failure and anemia. HCV-infected subjects had lower mean (+/- standard deviation) total plasma cholesterol (175 +/- 40.8 mg/dL vs. 198 +/- 41.0 mg/dL), low-density lipoprotein cholesterol (102 +/- 36.8 mg/dL vs. 119 +/- 38.2 mg/dL), and triglyceride (144 +/- 119 mg/dL vs. 179 +/- 151 mg/dL) levels, compared with HCV-uninfected subjects (P < .001 for all comparisons). In multivariable analysis, HCV infection was associated with a higher risk of CAD (hazard ratio, 1.25; 95% confidence interval, 1.20-1.30). Traditional risk factors (age, hypertension, chronic obstructive pulmonary disease, diabetes, and hyperlipidemia) were associated with a higher risk of CAD in both groups, whereas minority race and female sex were associated with a lower risk of CAD. CONCLUSIONS HCV-infected persons are younger and have lower lipid levels and a lower prevalence of hypertension. Despite a favorable risk profile, HCV infection is associated with a higher risk of CAD after adjustment for traditional risk factors.
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Affiliation(s)
- Adeel A Butt
- VA Pittsburgh Healthcare System, University of Pittsburgh School of Medicine, Center for Health Equity Research and Promotion, Pittsburgh, Pennsylvania, USA.
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Michaud K, Augsburger M, Sporkert F, Bollmann M, Krompecher T, Mangin P. Interpretation of lesions of the cardiac conduction system in cocaine-related fatalities. J Forensic Leg Med 2007; 14:416-22. [PMID: 17720593 DOI: 10.1016/j.jflm.2007.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2007] [Revised: 02/06/2007] [Accepted: 02/07/2007] [Indexed: 10/23/2022]
Abstract
This study examines cases of chronic drug users who died suddenly after drug administration. Victims were young subjects, aged from 19 to 35 from Switzerland and known to the police as long-term drug users. The circumstances of death suggested the occurrence of a sudden, unexpected death. Some victims were undergoing methadone treatment. In each case, a forensic autopsy and toxicological analyses were performed at the Institute of Forensic Medicine in Lausanne in Switzerland between 2002 and 2004, including hair analysis as a means to establish chronic drug use in general, and cocaine use in particular. The conduction system was examined histologically and cases showing potentially lethal changes were chosen for this report. The most frequent lesions found were severe thickening of the atrioventricular node artery, intranodal and perinodal fibrosis, and microscopic foci of chronic inflammatory infiltration. The authors conclude that pathological lesions in the conduction tissue may play a role in the occurrence of death attributed to intoxication consecutive to cocaine ingestion.
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Affiliation(s)
- Katarzyna Michaud
- Institut Universitaire de Médecine Légale, University Hospital Center and University of Lausanne, Bugnon 21, 1005 Lausanne, Switzerland.
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Hill GE, Ogunnaike BO, Johnson ER. General anaesthesia for the cocaine abusing patient. Is it safe? Br J Anaesth 2006; 97:654-7. [PMID: 16914461 DOI: 10.1093/bja/ael221] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Commonly, cocaine abusing patient are scheduled for elective surgery with a positive urine test for cocaine metabolites. As many of these patients were clinically non-toxic [normal arterial pressure and heart rate, normothermic, and a normal (or unchanged from previous) ECG, including a QTc interval <500 ms], we have recently proceeded with elective surgery requiring general anaesthesia in this patient group. METHODS Forty urine cocaine positive patients were compared with an equal number of drug-free controls in a prospective, non-randomized, blinded analysis. Intraoperative mean arterial blood pressure, ST segment analysis, heart rate and body temperature were recorded and compared. RESULTS Cardiovascular stability during and after general anaesthesia in cocaine positive, non-toxic patients was not significantly different when compared with an age and ASA matched drug-free control group. CONCLUSIONS These results demonstrate that the non-toxic cocaine abusing patient can be administered general anaesthesia with no greater risk than comparable age and ASA matched drug-free patients.
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Affiliation(s)
- G E Hill
- Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard, Dallas, TX 75390-9068, USA.
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Bauman JL. Response to Cardiovascular Toxicity. South Med J 2006; 99:780; author reply 780. [PMID: 16866068 DOI: 10.1097/01.smj.0000223667.73658.f9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2005 American Heart Association (AHA) guidelines for cardiopulmonary resuscitation (CPR) and emergency cardiovascular care (ECC) of pediatric and neonatal patients: pediatric advanced life support. Pediatrics 2006; 117:e1005-28. [PMID: 16651281 DOI: 10.1542/peds.2006-0346] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
Cocaine is the second commonest illicit drug used and the most frequent cause of drug related deaths. Its use is associated with both acute and chronic complications that may involve any system, the most common being the cardiovascular system. Cocaine misuse has a major effect in young adult drug users with resulting loss of productivity and undue morbidity with cocaine related cardiac and cerebrovascular effects. Many cocaine users have little or no idea of the risks associated with its use. Patients, health care professionals, and the public should be educated about the dangers and the considerable risks of cocaine use. This review concentrates on the cardiovascular effects of cocaine and their management.
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Affiliation(s)
- M Egred
- Cardiothoracic Centre, Thomas Drive, Liverpool L14 3PE, UK.
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Abstract
Patients who have chest pain following the use of cocaine have become more common in emergency departments throughout the United States,with approximately 6% of these patients sustaining an acute MI. The authors have described the rationale for recommending aspirin, benzodiaze-pines, and nitroglycerin as first-line treatments and calcium-channel blockade or phentolamine as possible second-line therapies and have summarized the controversies surrounding the use of fibrinolytic agents. Admission for observation is one reasonable approach to the management of the low-risk cohort. Evaluation for underlying coronary artery disease is reasonable, particularly in patients who have acute MI. Patients who do not have infarction can undergo evaluation for possible coronary artery disease on an outpatient basis. Routine interventions for secondary prophylaxis as well as cocaine rehabilitation should be used in this patient population, because the long-term prognosis seems somewhat dependent upon the ability of the patient to discontinue cocaine use.
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Affiliation(s)
- Judd E Hollander
- Department of Emergency Medicine, University of Pennsylvania, Ground Floor, Ravdin Building, 3400 Spruce Street Philadelphia, PA 19104-4283, USA
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Zheng ZJ, Croft JB, Giles WH, Mensah GA. Out-of-hospital cardiac deaths in adolescents and young adults in the United States, 1989 to 1998. Am J Prev Med 2005; 29:36-41. [PMID: 16389124 DOI: 10.1016/j.amepre.2005.07.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2004] [Revised: 05/02/2005] [Accepted: 07/08/2005] [Indexed: 11/23/2022]
Abstract
BACKGROUND Out-of-hospital cardiac death (OHCD), often occurring suddenly and unexpectedly, is a major public health problem. The purpose of this study is to assess the epidemiologic pattern and secular trend of OHCD in adolescents and young adults aged 15-34 years in the United States. METHODS United States national vital statistics mortality data from 1989 to 1998 were analyzed. OHCD was defined as death that occurred either at a pre-transport location, or in the emergency room, or was classified as "dead on arrival" in the emergency room, with an underlying cause of death as a cardiac disease (ICD-9 codes 390-398, 402, 404-429, 745, or 746). RESULTS Of the 48,573 cardiac deaths occurring during 1989 to 1998, 31,827 (66%) were out of hospital. Of all OHCD victims from 1989 to 1998, 70% were men, and 76% were aged 25-34 years. The leading underlying causes of OHCD were coronary heart disease (29%), cardiomyopathy (18%), and arrhythmias (14%). The OHCD rates (per million population) were twice as high in men as in women (57.0 vs. 26.7 in 1997 and 1998), in African Americans as in whites (84.9 vs. 35.9 in 1997 and 1998), and increased with age. From 1989-1990 to 1997-1998, the age-adjusted OHCD death rates increased in both men (11%) and women (33%), and in African Americans (11%) and whites (19%). CONCLUSIONS Although cardiac death remains rare in U.S. adolescents and young adults, the increased trend in OHCD rates in this age group warrants further investigation of etiology and prevention strategies.
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Affiliation(s)
- Zhi-Jie Zheng
- Cardiovascular Health Branch, Division of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 30341-3717, USA.
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DeWitt CR, Cleveland N, Dart RC, Heard K. The effect of amiodarone pretreatment on survival of mice with cocaine toxicity. J Med Toxicol 2005; 1:11-8. [PMID: 18072097 PMCID: PMC3550010 DOI: 10.1007/bf03160899] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Cocaine is a common drug of abuse and use has been associated with ventricular dysrhythmias. Published guidelines suggest that amiodarone is the first line antidysrhythmic for ventricular tachycardia and fibrillation. However, the effects amiodarone in the setting of cocaine toxicity are unknown and unstudied. The purpose of this study was to evaluate the safety and efficacy of amiodarone pretreatment in a murine model of acute cocaine toxicity. METHODS This was a randomized, blinded, placebo controlled investigation using male CF-1 mice weighing 29-37 g. First, the safety of an intraperitoneal dose of amiodarone (40 mg/kg) was confirmed in 5 mice. Second, based on preliminary investigations, an approximate intraperitoneal LD50 dose of cocaine (110 mg/kg) was identified and used as the cocaine dose in this study. Animals were then randomized to 2 groups. The control group received 0.5 mL of intraperitoneal 0.9% saline 30 minutes before cocaine. The study group received 40 mg/kg of intraperitoneal amiodarone (40 mg/kg) 30 minutes before cocaine. A blinded observer monitored mice for 2 hours after cocaine administration. RESULTS No mice in the amiodarone-only group developed any signs of toxicity or died. In the saline + cocaine group 31/32 (96.9%; 95% CI 83.8 to 99.9) mice seized with a median time to seizure of 2.5 minutes, and 23/32 (71.9%; 95% CI 52.3 to 86.3) died with a median time to death of 5.5 minutes. In the amiodarone + cocaine group 31/33 (93.9%; 95% CI 79.0 to 99.3) mice seized with a median time to seizure of 2.0 minutes, and 24/33 (72.7%; 95% CI 54.5 to 86.7) died with a median time to death of 6.0 minutes. All animals that died did so within 9 minutes. The difference in the proportion of animals dying in the amiodarone + cocaine group compared to the saline + cocaine group was 0.008 (-21 to 22%). CONCLUSIONS In this study, pretreatment with amiodarone in cocaine poisoned mice resulted in no change in seizure incidenceor mortality. However, definite conclusions about the reason for these findings cannot be drawn from this model.
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Affiliation(s)
- Christopher R. DeWitt
- />Rocky Mountain Poison and Drug Center and Denver Health Medical Center, Denver, CO
- />University of Colorado Health Sciences Center and University of Colorado Emergency Medicine Research Center, Denver, CO
| | - Nathan Cleveland
- />University of Colorado School of Medicine and Colorado Emergency Medicine Research Center, Denver, CO
| | - Richard C. Dart
- />Rocky Mountain Poison and Drug Center, Denver Health Medical Center, Denver, CO
- />University of Colorado Health Sciences Center, Denver, CO
| | - Kennon Heard
- />Division of Emergency Medicine, University of Colorado Health Sciences Center and Colorado Emergency Medicine Research Center, Denver, CO
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Frishman WH, Del Vecchio A, Sanal S, Ismail A. Cardiovascular manifestations of substance abuse part 1: cocaine. HEART DISEASE (HAGERSTOWN, MD.) 2003; 5:187-201. [PMID: 12783633 DOI: 10.1097/01.hdx.0000074519.43281.fa] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Substance abuse with cocaine is associated with multiple cardiovascular conditions, including myocardial infarction, dissection, left ventricular hypertrophy, arrhythmias, sudden death, and cardiomyopathy. Cocaine has effects to potentiate the physiologic actions of catecholamines and has direct effects on voltage-dependent sodium ion channels related to local anesthetic properties. The effects of cocaine can be augmented with concomitant alcohol consumption. Acute myocardial ischemia caused by cocaine may be related to in situ thromboisis and/or coronary vasospasm. Treatment strategies for cocaine-induced myocardial infarction would include antiplatelet therapy, thrombolysis, and vasodilators (eg, nitrates, nifedipine). Beta-adrenergic blockers should not be used unless concomitant vasodilator therapy is given.
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Affiliation(s)
- William H Frishman
- Departments of Medicine, The New York Medical College/Westchester Medical Center, Valhalla, NY 10595, USA
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Bauman JL, DiDomenico RJ. Cocaine-induced channelopathies: emerging evidence on the multiple mechanisms of sudden death. J Cardiovasc Pharmacol Ther 2002; 7:195-202. [PMID: 12232568 DOI: 10.1177/107424840200700309] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sudden death due to cocaine in the absence of myocardial infarction has been attributed to the precipitation of life-threatening arrhythmias not unlike that due to antiarrhythmic drugs. Cocaine is a slow on-off sodium blocker and a fast on-off potassium blocker. Effects on repolarization are biphasic: At low concentrations, cocaine delays ventricular recovery, whereas at higher levels, cocaine hastens it. Two distinct clinical profiles emerge from case reports of electrocardiographically documented life-threatening arrhythmias attributed to cocaine. The first is monomorphic slow ventricular tachycardia or idioventricular rhythm that occurs in overdose situations and appears to reflect excessive sodium channel block; it may respond to sodium bicarbonate. The second is torsade de pointes that occurs in recreational users who have underlying risks for this tachycardia (such as fully or partially expressed congenital long QT syndrome) and reflects potassium channel blockade. These clinical observations can be explained by recent findings regarding the electrophysiologic effects of cocaine. Other patterns of severe arrhythmias due to cocaine may yet emerge.
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Affiliation(s)
- Jerry L Bauman
- University of Illinois at Chicago, Department of Pharmacy Practice, Section of Cardiology 60612, USA
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Schindler CW, Zheng JW, Goldberg SR. Effects of cocaine and cocaine metabolites on cardiovascular function in squirrel monkeys. Eur J Pharmacol 2001; 431:53-9. [PMID: 11716843 DOI: 10.1016/s0014-2999(01)01406-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effects of cocaine and the cocaine metabolites norcocaine, ecgonine methyl ester, benzoylecgonine and cocaethylene were evaluated in conscious squirrel monkeys for their effects on blood pressure and heart rate. Norcocaine, ecgonine methyl ester and benzoylecgonine are produced in vivo following cocaine use. Cocaethylene is produced in vivo following concurrent cocaine and alcohol use. Increases in both blood pressure and heart rate were observed following cocaine doses of 0.3-3.0 mg/kg. Ecgonine methyl ester and benzoylecgonine had no effect on either parameter up to doses of 10.0 mg/kg. Norcocaine increased blood pressure, but was less potent than cocaine. Norcocaine did not affect heart rate at doses up to 3.0 mg/kg. In contrast to the other metabolites, cocaethylene increased blood pressure and heart rate similarly to cocaine. These results suggest that ecgonine methyl ester and benzoylecgonine are devoid of cardiovascular effects at doses comparable to cocaine and would not be expected to contribute to cocaine's overall cardiovascular effects. Norcocaine's effect on blood pressure might contribute to the cardiovascular effects of cocaine, but this metabolite is produced only at low levels in vivo. The one metabolite that might be expected to contribute to cocaine's overall cardiovascular effect is cocaethylene, although the degree of this contribution is not clear.
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Affiliation(s)
- C W Schindler
- Preclinical Pharmacology Section, NIH/NIDA Intramural Research Program, 5500 Nathan Shock Drive, Baltimore, MD 21224, USA.
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Zhang S, Rajamani S, Chen Y, Gong Q, Rong Y, Zhou Z, Ruoho A, January CT. Cocaine blocks HERG, but not KvLQT1+minK, potassium channels. Mol Pharmacol 2001; 59:1069-76. [PMID: 11306689 DOI: 10.1124/mol.59.5.1069] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cocaine causes cardiac arrhythmias, sudden death, and occasionally long QT syndrome in humans. We investigated the effect of cocaine on the human K(+) channels HERG and KvLQT1+minK that encode native rapidly (I(Kr)) and slowly (I(Ks)) activating delayed rectifier K(+) channels in the heart. HERG and KvLQT1+minK channels were heterologously expressed in human embryonic kidney 293 cells, and whole-cell currents were recorded. Cocaine had no effect on KvLQT1+minK current in concentrations up to 200 microM. In contrast, cocaine reversibly blocked HERG current with half-maximal block of peak tail current of 7.2 microM. By using a protocol to quickly activate HERG channels, we found that cocaine block developed rapidly after channel activation. At 0 mV, the time constants for the development of block were 38.2 +/- 2.1, 15.2 +/- 0.8, and 6.9 +/- 1.1 ms in 10, 50 and 200 microM cocaine, respectively. Cocaine-blocked channels also recovered rapidly from block after repolarization. At -100 mV, recovery from block followed a biphasic time course with fast and slow time constants of 3.5 +/- 0.7 and 100.3 +/- 15.4 ms, respectively. Using N-methyl-cocaine, a permanently charged, membrane-impermeable cocaine analog, block of HERG channels rapidly developed when the drug was applied intracellularly through the patch pipette, suggesting that the cocaine binding site on the HERG protein is located on a cytoplasmic accessible domain. These results indicate that cocaine suppresses HERG, but not KvLQT1+minK, channels by preferentially blocking activated channels, that it unblocks upon repolarization, and does so with unique ultrarapid kinetics. Because the cocaine concentration range we studied is achieved in humans, HERG block may provide an additional mechanism for cocaine-induced arrhythmias and sudden death.
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Affiliation(s)
- S Zhang
- Department of Medicine, University of Wisconsin Medical School, Madison, Wisconsin, USA
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Abstract
Cocaine is a potent cardiac stimulant and its use has been linked to life-threatening arrhythmias in humans. A prominent effect of cocaine in the heart is a suppression of the delayed-rectifier potassium current (I(K)) that is important for cardiac repolarization. In this study, cocaine was found to be an inhibitor of HERG channels that underlie the rapidly activating component of I(K). HERG was expressed in tsA201 cells and the whole-cell currents were measured using the patch-clamp technique. HERG currents are inhibited in a dose-dependent fashion with an IC(50) value of 5.6 +/- 0.4 microM. The cocaine inhibition increases over the range of voltages at which the channels activate, indicating that cocaine preferentially binds to open or inactivated channels. At more depolarized potentials, at which the channels are maximally activated, the cocaine inhibition is constant indicating that the binding of the drug is not directly influenced by voltage. Cocaine reduces both the peak tail currents and the instantaneous currents measured by applying voltage steps under conditions where channels are open. The data are consistent with the inhibition of open channels. Cocaine also accelerates the rapid decay of the current at depolarized voltages suggestive of an interaction with inactivated channels. The data indicates that cocaine inhibits the channels by preferentially binding to a combination of open and inactivated states.
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Affiliation(s)
- M E O'Leary
- Department of Pathology, Anatomy, and Cell Biology, Jefferson Medical College, Philadelphia, Pennsylvania, USA. michael.o'
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Abstract
Right bundle branch block with coved ST-segment elevation in leads V1 through V3 is the electrocardiographic (ECG) marker of the Brugada syndrome. We describe a healthy young man with a normal baseline ECG in whom a transient Brugada pattern was observed repeatedly after recreational cocaine use. Intravenous administration of procainamide and subsequent intravenous propranolol followed by noradrenaline failed to reproduce the Brugada sign. An electrophysiologic study performed in the presence of the Brugada ECG pattern showed no inducible arrhythmias. This case illustrates that, in susceptible individuals, cocaine may provoke the Brugada sign. The clinical importance of this cocaine-induced ECG abnormality is currently unknown.
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Affiliation(s)
- L Littmann
- Department of Internal Medicine, Carolinas Medical Center, Charlotte, NC 28232, USA
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Erzouki HK, Goldberg SR, Schindler CW. Comparison of cocaine and Na+ channel blockers on cardio-respiratory function in the rabbit. Eur J Pharmacol 1999; 377:51-6. [PMID: 10448925 DOI: 10.1016/s0014-2999(99)00411-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The cardio-respiratory effects of cocaine were compared to various Na+ channel blocking Class I antiarrhythmics. Anesthetized rabbits were treated with various doses of either cocaine, quinidine, procainamide, lidocaine or flecainide. Cocaine produced clear decreases in blood pressure and heart rate. None of the other sodium channel blockers produced any change in blood pressure, and heart rate was decreased only slightly by procainamide and lidocaine. Cocaine produced larger increases in QRS duration than were observed for the four sodium channel blockers. All five drugs produced comparable increases in respiratory rate. Separate rabbits were pretreated with either the alpha-adrenoceptor antagonist phentolamine or the beta-adrenoceptor antagonist propranolol prior to cocaine. Phentolamine attenuated the blood pressure decrease following cocaine and propranolol attenuated the heart rate decrease following cocaine. These results suggest that the sodium channel blocking properties contribute only minimally to the overall effects of cocaine on blood pressure and heart rate. Further, the large effect of cocaine on QRS duration suggests that cocaine may act at sodium channels in a manner different from the other drugs. This unique effect of cocaine may contribute to the sudden death associated with cocaine use in some individuals.
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Affiliation(s)
- H K Erzouki
- Preclinical Pharmacology Section, Behavioral Neurosciences Branch, NIH/NIDA Intramural Research Program, Baltimore, MD 21224, USA
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Abstract
Severe cocaine toxicity causes acidemia and cardiac dysfunction. These manifestations are described in 4 patients who presented with seizures, psychomotor agitation, and cardiopulmonary arrest. Their initial laboratory values demonstrated acidemia and electrocardiographic findings that included a prolonged QRS complex and QTc duration and a rightward T40 ms axis deviation. Treatment of the patients with hyperventilation, sedation, active cooling, and sodium bicarbonate infusion led to the normalization of their blood pHs and reversal of their cardiac conduction disorders. Acidemia can contribute to cocaine cardiac disorders by promoting conduction delays, dysrhythmias, and depressed myocardial contractility. Good supportive care corrects the blood pH and cardiac conduction disorders and remains the major focus in the management of patients with cocaine toxicity.
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Affiliation(s)
- R Y Wang
- Department of Emergency Medicine, Rhode Island Hospital, Brown University School of Medicine, Providence, USA
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Bartzokis G, Beckson M, Hance DB, Lu PH, Foster JA, Mintz J, Ling W, Bridge P. Magnetic resonance imaging evidence of "silent" cerebrovascular toxicity in cocaine dependence. Biol Psychiatry 1999; 45:1203-11. [PMID: 10331113 DOI: 10.1016/s0006-3223(98)00228-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Cocaine and its metabolites can produce vasospasm. Cocaine-dependent (CD) patients are at increased risk for stroke, and a high frequency of brain perfusion defects has been observed in clinically asymptomatic CD subjects. This is the first controlled magnetic resonance imaging (MRI) study of clinically asymptomatic CD subjects. METHODS Two age-matched groups of male subjects (61 CD and 57 control) participated in the study. Subjects with a history of neurologic symptoms or major medical or neurologic illness, such as hypertension, diabetes, or significant head trauma, were excluded. The severity of hyperintense lesions observed on T2-weighted MRI images were rated on a 0-3-point scale by an experienced radiologist who was blind to all clinical data. Ratings of 3 were felt to be significant indicators of a possible disease process and were used in the data analysis. Three regions were separately rated: the cerebral white matter, subinsular white matter, and subcortical gray matter (basal ganglia and thalamus region). RESULTS Despite the exclusion criteria minimizing risk factors for cerebrovascular events, 17 of the 61 (27.9%) CD subjects and 4 of 57 (7%) of the control subjects had severe hyperintense lesions suggestive of subclinical or "silent" anoxic vascular events. Significant group differences were observed in the two white matter regions but not in the subcortical gray matter region. The risk of severe white matter lesions in the CD group increased with age, reaching 50% in the oldest age quartile (46-58 years), and this increase was not related to the number of years cocaine was used. CONCLUSIONS The data suggest that asymptomatic CD patients are a heterogeneous population with a significantly increased age-related risk of white matter neurovascular toxicity. Premature neurovascular damage may impact treatment outcomes and, as the CD population ages, may manifest as an increased incidence of cognitive deficits.
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Affiliation(s)
- G Bartzokis
- Psychiatry Service, Little Rock VA Medical Center, Arkansas 72114, USA
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Abstract
Sudden cardiac death in athletes is usually due to underlying cardiovascular disease. In the young less than 30 years of age, the most common abnormality is hypertrophic cardiomyopathy, followed by congenital coronary artery anomalies. The final common pathway is usually ventricular fibrillation. Sudden cardiac death in the young is rare but remains a source of concern. A careful screening history and physical examination, especially for potential athletes, should identify the majority of young people at risk.
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Affiliation(s)
- M M Goble
- Michigan State University, Department of Pediatrics and Human Development, East Lansing, USA
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49
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Abstract
Cocaine remains the most common cause of illicit drug-related visits to emergency departments, 40% of which result from chest pain. It is estimated that over half of the 64,000 patients evaluated annually for cocaine-associated chest pain will be admitted to hospitals for the evaluation of myocardial ischemia or infarction, at a health care cost of over eighty million dollars. Although the link between cocaine use and myocardial ischemia is well established, only about 6% of patients with cocaine-associated chest pain will demonstrate biochemical evidence of myocardial infarction. This article focuses on the evaluation of patients with chest pain following cocaine use, and concentrates on ways to improve diagnosis, management, and utilization of health care services.
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Affiliation(s)
- R S Hoffman
- New York City Department of Health, Bureau of Laboratories, New York City Poison Control Center, New York, USA
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Yuan C, Acosta D. Dissociation of the cytotoxicity of cocaine from its local anaesthetic effect: A comparison with lidocaine. Toxicol In Vitro 1996; 10:195-204. [DOI: 10.1016/0887-2333(95)00108-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/1995] [Indexed: 10/18/2022]
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