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Bocchino M, Sica G, Lieto R, Massari L, Baino B, Damato F, Rea G. Clarifying the face of cannabis lung. J Bras Pneumol 2024; 50:e20240141. [PMID: 39356912 PMCID: PMC11449596 DOI: 10.36416/1806-3756/e20240141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2024] Open
Affiliation(s)
- Marialuisa Bocchino
- . Department of Clinical Medicine and Surgery, Respiratory Medicine Unit, Federico II University of Naples, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
| | - Giacomo Sica
- . Department of Diagnostic Imaging, Section of General Radiology, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
| | - Roberta Lieto
- . Department of Diagnostic Imaging, Section of General Radiology, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
| | - Luigi Massari
- . Department of Clinical Medicine and Surgery, Respiratory Medicine Unit, Federico II University of Naples, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
| | - Bianca Baino
- . Department of Clinical Medicine and Surgery, Respiratory Medicine Unit, Federico II University of Naples, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
| | - Ferdinando Damato
- . Department of Clinical Medicine and Surgery, Respiratory Medicine Unit, Federico II University of Naples, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
| | - Gaetano Rea
- . Department of Diagnostic Imaging, Section of General Radiology, Azienda Ospedali dei Colli, P.O. Monaldi, Naples, Italy
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2
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Guo Y, Wei X, Pei J, Yang H, Zheng XL. Dissecting the role of cannabinoids in vascular health and disease. J Cell Physiol 2024:e31373. [PMID: 38988064 DOI: 10.1002/jcp.31373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/04/2024] [Accepted: 06/27/2024] [Indexed: 07/12/2024]
Abstract
Cannabis, often recognized as the most widely used illegal psychoactive substance globally, has seen a shift in its legal status in several countries and regions for both recreational and medicinal uses. This change has brought to light new evidence linking cannabis consumption to various vascular conditions. Specifically, there is an association between cannabis use and atherosclerosis, along with conditions such as arteritis, reversible vasospasm, and incidents of aortic aneurysm or dissection. Recent research has started to reveal the mechanisms connecting cannabinoid compounds to atherosclerosis development. It is well known that the primary biological roles of cannabinoids operate through the activation of cannabinoid receptor types 1 and 2. Manipulation of the endocannabinoid system, either genetically or pharmacologically, is emerging as a promising approach to address metabolic dysfunctions related to obesity. Additionally, numerous studies have demonstrated the vasorelaxant properties and potential atheroprotective benefits of cannabinoids. In preclinical trials, cannabidiol is being explored as a treatment option for monocrotaline-induced pulmonary arterial hypertension. Although existing literature suggests a direct role of cannabinoids in the pathogenesis of atherosclerosis, the correlation between cannabinoids and other vascular diseases was only reported in some case series or observational studies, and its role and precise mechanisms remain unclear. Therefore, it is necessary to summarize and update previously published studies. This review article aims to summarize the latest clinical and experimental research findings on the relationship between cannabis use and vascular diseases. It also seeks to shed light on the potential mechanisms underlying these associations, offering a comprehensive view of current knowledge in this evolving field of study.
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Affiliation(s)
- Yanan Guo
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Biochemistry and Molecular Biology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Xiaoyun Wei
- Department of Cardiology, The Fifth School of Clinical Medicine of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Junyu Pei
- Department of Biochemistry and Molecular Biology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Haibo Yang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xi-Long Zheng
- Department of Biochemistry and Molecular Biology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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3
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Bando JM, Tashkin DP, Barjaktarevic IZ. Impact of Marijuana Use on Lung Health. Semin Respir Crit Care Med 2024. [PMID: 38968961 DOI: 10.1055/s-0044-1785679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2024]
Abstract
The widespread use of marijuana in the context of increasing legalization has both short- and long-term health implications. Although various modes of marijuana use-smoked, vaped, or ingested-may lead to a wide scope of potential systemic effects, we focus here on inhalational use of marijuana as the most common mode with the lung as the organ that is most directly exposed to its effects. Smoked marijuana has been associated with symptoms of chronic bronchitis and histopathologic changes in airway epithelium, but without consistent evidence of long-term decline in pulmonary function. Its role in immunomodulation, both for risk of infection and protection against a hyperinflammatory host response to infection, has been suggested in animal models and in vitro without conclusive extrapolation to humans. Marijuana smoke contains carcinogens like those found in tobacco, raising concern about its role in lung cancer, but evidence is mixed and made challenging by concurrent tobacco use. Vaping may offer a potential degree of harm reduction when compared with smoking marijuana with reduction of exposure to several toxins, including carbon monoxide, and reduction in chronic respiratory symptoms. However, these potential benefits are counterbalanced by risks including vaping-associated lung injury, potentially more intense drug exposure, and other yet not well-understood toxicities. As more states legalize marijuana and the federal government considers changing this from a Schedule I to a Schedule III controlled substance, we anticipate an increase in prospective medical studies concerning the risks related to marijuana use. This review is based on currently available data concerning the impact of inhaled marijuana on lung health.
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Affiliation(s)
- Joanne M Bando
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Donald P Tashkin
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Igor Z Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
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Romeo B, Kervadec E, Fauvel B, Strika-Bruneau L, Amirouche A, Verroust V, Piolino P, Benyamina A. Significant Psychedelic Experiences Evaluated for Mystical Characteristics Associated with Cannabis Use Reduction and Psychological Flexibility Improvement: A Naturalistic Cross-Sectional Retrospective Survey. J Psychoactive Drugs 2024:1-12. [PMID: 38961652 DOI: 10.1080/02791072.2024.2375720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 05/13/2024] [Indexed: 07/05/2024]
Abstract
Treating cannabis use disorder remains a significant challenge in the field of addiction medicine. Some recent studies point to psychedelic-assisted psychotherapy as a potential treatment option for substance use disorders. The objective of this study was therefore to explore the impact of naturalistic psychedelic experiences on cannabis use and psychological flexibility. An online retrospective survey was carried out on 152 cannabis users who also reported a significant experience induced by psychedelics in the past. Following a psychedelic experience, there was a significant and sustained reduction of average CUDIT score (p < .001), frequency of cannabis use (p < .001), and acute duration of daily intoxication (p < .001). Cannabis use reduction during the first month post-experience was significantly associated with the intensity of the mystical experience (p = .01). Participants reported a concomitant increased lasting improvement of psychological flexibility following the experience (p < .001), which was correlated to the intensity of the mystical experience during the first month post-experience (p = .04). This study demonstrates that naturalistic psychedelic experiences may be followed by a decrease in cannabis use. Positive health outcomes appear potentially connected to the intensity of the mystical experience, as well as an improvement in psychological flexibility.
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Affiliation(s)
- B Romeo
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France
- Unité de Recherche Psychiatrie-Comorbidités-Addictions, PSYCOMADD - Paris Saclay University Île-de-France, Villejuif, France
| | - E Kervadec
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France
| | - B Fauvel
- Laboratoire Mémoire, Cerveau et Cognition (UR 7536), Institut de Psychologie, Université Paris Cité, Paris, France
| | - L Strika-Bruneau
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France
- Unité de Recherche Psychiatrie-Comorbidités-Addictions, PSYCOMADD - Paris Saclay University Île-de-France, Villejuif, France
| | - A Amirouche
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France
- Unité de Recherche Psychiatrie-Comorbidités-Addictions, PSYCOMADD - Paris Saclay University Île-de-France, Villejuif, France
| | - V Verroust
- Unité de Recherche Psychiatrie-Comorbidités-Addictions, PSYCOMADD - Paris Saclay University Île-de-France, Villejuif, France
- Université Picardie-Jules Vernes, Amiens, France
| | - P Piolino
- Laboratoire Mémoire, Cerveau et Cognition (UR 7536), Institut de Psychologie, Université Paris Cité, Paris, France
| | - A Benyamina
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France
- Unité de Recherche Psychiatrie-Comorbidités-Addictions, PSYCOMADD - Paris Saclay University Île-de-France, Villejuif, France
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5
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Escalon JG, Girvin F. Smoking-Related Interstitial Lung Disease and Emphysema. Clin Chest Med 2024; 45:461-473. [PMID: 38816100 DOI: 10.1016/j.ccm.2023.08.016] [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: 06/01/2024]
Abstract
Diagnosis and treatment of patients with smoking-related lung diseases often requires multidisciplinary contributions to optimize care. Imaging plays a key role in characterizing the underlying disease, quantifying its severity, identifying potential complications, and directing management. The primary goal of this article is to provide an overview of the imaging findings and distinguishing features of smoking-related lung diseases, specifically, emphysema/chronic obstructive pulmonary disease, respiratory bronchiolitis-interstitial lung disease, smoking-related interstitial fibrosis, desquamative interstitial pneumonitis, combined pulmonary fibrosis and emphysema, pulmonary Langerhans cell histiocytosis, and E-cigarette or vaping related lung injury.
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Affiliation(s)
- Joanna G Escalon
- Department of Radiology, New York-Presbyterian Hospital-Weill Cornell Medical College, 525 E 68th Street, New York, NY 10065, USA.
| | - Francis Girvin
- Department of Radiology, New York-Presbyterian Hospital-Weill Cornell Medical College, 525 E 68th Street, New York, NY 10065, USA
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6
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Adusumilli PS. Fleischner Society Glossary: The Power of Standardization of Nomenclature for Thoracic Surgical Communications. Radiology 2024; 310:e240410. [PMID: 38530187 DOI: 10.1148/radiol.240410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Affiliation(s)
- Prasad S Adusumilli
- From the Department of Surgery, Thoracic Service, and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY 10065
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7
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Marchiori E, Hochhegger B, Zanetti G. Bullous emphysema in a cannabis user. J Bras Pneumol 2024; 50:e20230352. [PMID: 38422341 PMCID: PMC11095922 DOI: 10.36416/1806-3756/e20230352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Affiliation(s)
- Edson Marchiori
- . Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
| | | | - Gláucia Zanetti
- . Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
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8
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Goodwin RD, Zhou C, Silverman KD, Rastogi D, Borrell LN. Cannabis use and the prevalence of current asthma among adolescents and adults in the United States. Prev Med 2024; 179:107827. [PMID: 38128769 DOI: 10.1016/j.ypmed.2023.107827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/27/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVES Cannabis use has increased among adolescents and adults in the United States (US) in recent years. Few data are available on the prevalence of asthma by frequency of cannabis use. This study aimed to estimate the prevalence of asthma by frequency of past 30-day cannabis use among US individuals. METHODS Data were drawn from the 2020 National Survey on Drug Use and Health (NSDUH), a nationally representative, annual cross-sectional survey of US individuals aged 12 and older in the United States (N = 32,893). Logistic regression models were used to examine the relationship between frequency of any cannabis and/or blunt (i.e., cannabis smoked in a hollowed-out cigar) use in the past 30 days and current asthma, adjusting for demographics and current cigarette smoking. RESULTS Current asthma was more common among US individuals who reported cannabis use in the past 30-days, relative to those who did not (9.8% vs. 7.4%, p < 0.0001). The odds of asthma was significantly greater among individuals reporting cannabis use 20-30 days/month (Adjusted Odds Ratio [AOR] = 1.67, 95% CI:1.21, 2.31), blunt use 6-15 and 20-30 days/month (AOR = 1.9, 95% CI:1.1, 3.2; AOR = 2.2, 95% CI:1.4, 3.6), respectively, than among those without. A positive linear relationship was observed between frequency of a) cannabis use (p < 0.0001) and b) blunt use (p < 0.0001) and current asthma prevalence. CONCLUSIONS Findings suggest a dose-response relationship between frequency of current cannabis use and the prevalence of current asthma in the US individuals.
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Affiliation(s)
- Renee D Goodwin
- Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, The City University of New York, 55 West 125th Street, New York, NY 10027, United States of America; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, United States of America
| | - Chaoqun Zhou
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, United States of America
| | - Kevin D Silverman
- Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, The City University of New York, 55 West 125th Street, New York, NY 10027, United States of America
| | - Deepa Rastogi
- Department of Pediatrics, George Washington University School of Medicine, Washington, DC, United States of America
| | - Luisa N Borrell
- Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, The City University of New York, 55 West 125th Street, New York, NY 10027, United States of America
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9
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Marchiori E, Hochhegger B, Zanetti G. Paraseptal emphysema. J Bras Pneumol 2024; 49:e20230340. [PMID: 38198348 PMCID: PMC10760424 DOI: 10.36416/1806-3756/e20230340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024] Open
Affiliation(s)
- Edson Marchiori
- . Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
| | | | - Gláucia Zanetti
- . Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
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10
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Khoj L, Zagà V, Amram DL, Hosein K, Pistone G, Bisconti M, Serafini A, Cammarata LM, Cattaruzza MS, Mura M. Effects of cannabis smoking on the respiratory system: A state-of-the-art review. Respir Med 2024; 221:107494. [PMID: 38056532 DOI: 10.1016/j.rmed.2023.107494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
The diminished perception of the health risks associated with the consumption of cannabis (marijuana) lead to a progressive increase in its inhalational use in many countries. Cannabis can be smoked through the use of joints, spliffs and blunts, and it can be vaporised with the use of hookah or e-cigarettes. Delta-9 tetrahydrocannabinol (THC) is the main psychoactive component of cannabis smoke but contains numerous other substances. While the recreational use of cannabis smoking has been legalised in several countries, its health consequences have been underestimated and undervalued. The purpose of this review is to critically review the impact of cannabis smoke on the respiratory system. Cannabis smoke irritates the bronchial tree and is strongly associated with symptoms of chronic bronchitis, with histological signs of airway inflammation and remodelling. Altered fungicidal and antibacterial activity of alveolar macrophages, with greater susceptibility to respiratory infections, is also reported. The association with invasive pulmonary aspergillosis in immunocompromised subjects is particularly concerning. Although cannabis has been shown to produce a rapid bronchodilator effect, its chronic use is associated with poor control of asthma by numerous studies. Cannabis smoking also represents a risk factor for the development of bullous lung disease, spontaneous pneumothorax and hypersensitivity pneumonitis. On the other hand, no association with the development of chronic obstructive pulmonary disease was found. Finally, a growing number of studies report an independent association of cannabis smoking with the development of lung cancer. In conclusion, unequivocal evidence established that cannabis smoking is harmful to the respiratory system. Cannabis smoking has a wide range of negative effects on respiratory symptoms in both healthy subjects and patients with chronic lung disease. Given that the most common and cheapest way of assumption of cannabis is by smoking, healthcare providers should be prepared to provide counselling on cannabis smoking cessation and inform the public and decision-makers.
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Affiliation(s)
- Lugain Khoj
- Division of Respirology, Western University, London, ON, Canada; Department of Internal Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
| | | | - Daniel L Amram
- Ambulatorio per la Cessazione del Fumo di Tabacco, ASL Toscana Nord Ovest, Pontedera, Italy
| | - Karishma Hosein
- Division of Respirology, Western University, London, ON, Canada
| | - Giovanni Pistone
- Centro per il Trattamento del Tabagismo, Local Health Unit, Novara, Italy
| | - Mario Bisconti
- U.O.C. Pneumologia - Ospedale "Vito Fazzi", Lecce, Italy
| | | | | | - Maria Sofia Cattaruzza
- Italian Society of Tobaccology, Bologna, Italy; Department of Public Health and Infectious Diseases, University of Rome "La Sapienza", Rome, Italy
| | - Marco Mura
- Division of Respirology, Western University, London, ON, Canada
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11
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Velez Oquendo G, Balaji N, Ignatowicz A, Qutob H. Vanishing Lung Syndrome in a Young Male With Chronic Marijuana Use: A Case Report. Cureus 2023; 15:e51223. [PMID: 38283438 PMCID: PMC10821717 DOI: 10.7759/cureus.51223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2023] [Indexed: 01/30/2024] Open
Abstract
Vanishing lung syndrome (VLS) also known as type I bullae disease or idiopathic bullous disease is characterized by giant emphysematous bullae that commonly develop in the upper lobes, occupying at least one-third of a hemithorax. It is a progressive and irreversible condition that involves pulmonary parenchymal destruction and alveolar dilation. It is commonly associated with middle-aged tobacco smokers, habitual marijuana users, and those with alpha-1-antitrypsin deficiency. This case involves an incarcerated male in his 30s with chronic marijuana smoking who presented with a three-month history of right-sided chest pain accompanied by cough, hemoptysis, fever, and weight loss. The patient reported month-long atypical chest discomfort associated with a cough productive of bloody sputum and was brought to the ED after developing acutely worsening right-sided chest pain. The patient underwent a chest X-ray that revealed a large pneumothorax on the left. Subsequently, CT chest imaging showed extensive bilateral bullous disease, left upper lobe consolidation, and enlarged mediastinal lymph nodes. This case illustrates a rare presentation of VLS in the setting of a young patient who other than reported regular marijuana use had no other risk factors and a negative workup for possible etiologies that could cause his severe bullous emphysema, including alpha-1 antitrypsin, HIV, Sjogren's syndrome, pulmonary Langerhans cell histiocytosis, two sputum Mycobacterium tuberculosis tests, and acid-fast bacteria sputum cultures, which were all negative. Identifying and assessing the degree of disease early in this progressive disease helps guide treatment while preventing further deterioration of lung parenchyma.
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Affiliation(s)
| | - Nivedha Balaji
- Internal Medicine, Northeast Georgia Medical Center Gainsville, Gainesville, USA
| | | | - Hisham Qutob
- Critical Care, Northeast Georgia Medical Center Gainsville, Gainesville, USA
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12
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Moy L. Top Publications in Radiology, 2023: Our 100th Year. Radiology 2023; 309:e233126. [PMID: 38085075 DOI: 10.1148/radiol.233126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
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13
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Phan AN, Terry GE. Systematic review and rationale of using psychedelics in the treatment of cannabis use disorder. Front Psychiatry 2023; 14:1144276. [PMID: 37435402 PMCID: PMC10330760 DOI: 10.3389/fpsyt.2023.1144276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 06/09/2023] [Indexed: 07/13/2023] Open
Abstract
Introduction Cannabis use disorder (CUD) is prevalent in ~2-5% of adults in the United States and is anticipated to increase as restrictions to cannabis decrease and tetrahydrocannabinol (THC) content in cannabis products increase. No FDA-approved medications for CUD are currently available, despite trials of dozens of re-purposed and novel drugs. Psychedelics have garnered interest as a therapeutic class in other substance use disorders, and self-report surveys suggest they may result in positive outcomes for CUD. Herein, we review the existing literature pertaining to psychedelic use in persons with or at risk for CUD and consider the potential rationale underpinning psychedelics as a treatment for CUD. Methods A systematic search was performed in several databases. Inclusion criteria were primary research reporting use of psychedelics or related substances and CUD for treatment in human subjects. Exclusion criteria were results including psychedelics or related substances without changes in cannabis use or risks associated with CUD. Results Three hundred and five unique results were returned. One article was identified using the non-classical psychedelic ketamine in CUD; three articles were identified as topically relevant based on their secondary data or consideration of mechanism. Additional articles were reviewed for purposes of background, review of safety considerations, and formulating rationale. Conclusion Limited data and reporting are available on the use of psychedelics in persons with CUD, and more research is needed given the anticipated increase in CUD incidence and increasing interest in psychedelic use. While psychedelics, broadly, have a high therapeutic index with infrequent serious adverse effects, particular adverse effects at risk in the CUD population, such as psychosis and cardiovascular events, should be considered. Possible mechanisms by which psychedelics have therapeutic potential in CUD are explored.
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Affiliation(s)
- Angela N. Phan
- University of Washington School of Medicine, Seattle, WA, United States
| | - Garth E. Terry
- Departments of Psychiatry and Behavioral Sciences, and Radiology, University of Washington School of Medicine, Seattle, WA, United States
- Mental Illness Research, Education, and Clinical Center (MIRECC), Department of Veterans Affairs, Puget Sound Health Care System, Seattle, WA, United States
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