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Vélez C, Neuringer I, Schwarzenberg SJ. The foregut in cystic fibrosis. Pediatr Pulmonol 2024; 59 Suppl 1:S61-S69. [PMID: 39105333 DOI: 10.1002/ppul.27123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 05/23/2024] [Accepted: 06/01/2024] [Indexed: 08/07/2024]
Abstract
The aerodigestive organs share a kindred embryologic origin that allows for a more complete explanation as to how the foregut can remain a barrier to normalcy in people with cystic fibrosis (pwCF). The structures of the aerodigestive tract include the nasopharynx, the oropharynx, the hypopharynx, the esophagus, the stomach, as well as the supraglottic, glottic, and subglottic tubular airways (including the trachea). Additional gastrointestinal (GI) luminal/alimentary organs of the foregut include the duodenum. Extraluminal foregut structures include the liver, the gall bladder, the biliary tree, and the pancreas. There are a variety of neurologic controls within these complicated anatomic compartments to separate the transit of food and liquid from air. These structures share the same origin from the primitive foregut/mesenchyme. The vagus nerve is a critical structure that unites respiratory and digestive functions. This article comments on the interconnected nature of cystic fibrosis and the GI tract. As it relates to the foregut, this has been typically treated as simple "reflux" as the cause of worsened lung function in pwCF. That terms like gastroesophageal reflux (GER), gastroesophageal reflux disease (GERD), heartburn, and regurgitation are used interchangeably to reflect pathology further complicates matters; we offer a more physiologically accurate term called "GI-related aspiration" or "GRASP." Broadly, this term reflects that aspiration of foregut contents from the duodenum through the stomach to the esophagus, into the pharynx and the respiratory tree in pwCF. As a barrier to normalcy in pwCF, GRASP is fundamentally two disease processes-GERD and gastroparesis-that likely contribute most to the deterioration of lung disease in pwCF. In the modulator era, successful GRASP management will be critical, particularly in those post-lung transplantation (LTx), only through successful management of both GERD and gastroparesis. Standardization of clinical management algorithms for GRASP in CF-related GRASP is a key clinical and research gap preventing normalcy in pwCF; what exists nearly exclusively addresses surgical evaluations or offers guidance for the management of GI symptoms alone (with unclear parameters for respiratory disease considerations). We begin first by describing the result of GRASP damage to the lung in various stages of lung disease. This is followed by a discussion of the mechanisms by which the digestive tract can injure the lungs. We summarize what we anticipate future research directions will be to reduce the impact of GRASP as a barrier to normalcy in pwCF.
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Affiliation(s)
- Christopher Vélez
- Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Isabel Neuringer
- Division of Pulmonology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sarah Jane Schwarzenberg
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, University of Minnesota, Minneapolis, Minnesota, USA
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Ashford JR. Impaired oral health: a required companion of bacterial aspiration pneumonia. FRONTIERS IN REHABILITATION SCIENCES 2024; 5:1337920. [PMID: 38894716 PMCID: PMC11183832 DOI: 10.3389/fresc.2024.1337920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 05/20/2024] [Indexed: 06/21/2024]
Abstract
Laryngotracheal aspiration has a widely-held reputation as a primary cause of lower respiratory infections, such as pneumonia, and is a major concern of care providers of the seriously ill orelderly frail patient. Laryngeal mechanical inefficiency resulting in aspiration into the lower respiratory tract, by itself, is not the cause of pneumonia. It is but one of several factors that must be present simultaneously for pneumonia to develop. Aspiration of oral and gastric contentsoccurs often in healthy people of all ages and without significant pulmonary consequences. Inthe seriously ill or elderly frail patient, higher concentrations of pathogens in the contents of theaspirate are the primary catalyst for pulmonary infection development if in an immunocompromised lower respiratory system. The oral cavity is a complex and ever changing eco-environment striving to maintain homogeneity among the numerous microbial communities inhabiting its surfaces. Poor maintenance of these surfaces to prevent infection can result inpathogenic changes to these microbial communities and, with subsequent proliferation, can altermicrobial communities in the tracheal and bronchial passages. Higher bacterial pathogen concentrations mixing with oral secretions, or with foods, when aspirated into an immunecompromised lower respiratory complex, may result in bacterial aspiration pneumonia development, or other respiratory or systemic diseases. A large volume of clinical evidence makes it clear that oral cleaning regimens, when used in caring for ill or frail patients in hospitals and long-term care facilities, drastically reduce the incidence of respiratory infection and death. The purpose of this narrative review is to examine oral health as a required causative companionin bacterial aspiration pneumonia development, and the effectiveness of oral infection control inthe prevention of this disease.
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Shen Z, Qiu B, Chen L, Zhang Y. Common gastrointestinal diseases and chronic obstructive pulmonary disease risk: a bidirectional Mendelian randomization analysis. Front Genet 2023; 14:1256833. [PMID: 38046045 PMCID: PMC10690629 DOI: 10.3389/fgene.2023.1256833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/26/2023] [Indexed: 12/05/2023] Open
Abstract
Background: Observational studies suggest an association between gastrointestinal diseases and chronic obstructive pulmonary disease (COPD), but the causal relationship remains unclear. Methods: We conducted bidirectional Mendelian randomization (MR) analysis using summary data from genome-wide association study (GWAS) to explore the causal relationship between common gastrointestinal diseases and COPD. Gastrointestinal diseases included gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), irritable bowel syndrome (IBS), Crohn's disease (CD), ulcerative colitis (UC), functional dyspepsia (FD), non-infectious gastroenteritis (NGE), and constipation (CP). Significant MR analysis results were replicated in the COPD validation cohort. Results: Bidirectional MR analysis supported a bidirectional causal relationship between GERD and COPD, and COPD was also found to increase the risk of IBS and CP. Our study also provided evidence for a bidirectional causal relationship between PUD and COPD, although the strength of evidence may be insufficient. Furthermore, we provided evidence that there is no causal association between CD, UC, FD, NGE, and COPD. Conclusion: This study offers some evidence to clarify the causal relationship between common gastrointestinal diseases and COPD. Further research is needed to understand the underlying mechanisms of these associations.
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Affiliation(s)
- Zixiong Shen
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, China
| | - Binxu Qiu
- Department of Gastrointestinal Surgery, The First Hospital of Jilin University, Changchun, China
| | - Lanlan Chen
- Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, China
| | - Yiyuan Zhang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, China
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Tuhy T, Hassoun PM. Clinical features of pulmonary arterial hypertension associated with systemic sclerosis. Front Med (Lausanne) 2023; 10:1264906. [PMID: 37828949 PMCID: PMC10565655 DOI: 10.3389/fmed.2023.1264906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023] Open
Abstract
Systemic sclerosis is an autoimmune disorder of the connective tissue characterized by disordered inflammation and fibrosis leading to skin thickening and visceral organ complications. Pulmonary involvement, in the form of pulmonary arterial hypertension and/or interstitial lung disease, is the leading cause of morbidity and mortality among individuals with scleroderma. There are no disease-specific therapies for pulmonary involvement of scleroderma, and pulmonary arterial hypertension in this cohort has typically been associated with worse outcomes and less clinical response to modern therapy compared to other forms of Group I pulmonary hypertension in the classification from the World Symposium on Pulmonary Hypertension. Ongoing research aims to delineate how pathologic microvascular remodeling and fibrosis contribute to this poor response and offer a window into future therapeutic targets.
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Affiliation(s)
| | - Paul M. Hassoun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Wakabayashi T, Hamaguchi S, Morimoto K. Clinically defined aspiration pneumonia is an independent risk factor associated with long-term hospital stay: a prospective cohort study. BMC Pulm Med 2023; 23:351. [PMID: 37718411 PMCID: PMC10506309 DOI: 10.1186/s12890-023-02641-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 09/07/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Long-term hospital stay is associated with functional decline in patients with pneumonia, especially in the elderly. Among elderly patients with pneumonia, aspiration pneumonia is a major category. Clinical definition is usually used because it can occur without apparent aspiration episodes. It is still not clear whether a long-term hospital stay is due to aspiration pneumonia itself caused by underlying oropharyngeal dysfunction or simply due to functional decline in elderly patients with multiple comorbidities during acute infection. The aim of this study is to identify whether clinically defined aspiration pneumonia itself was associated with a long-term hospital stay. METHODS A prospective observational study on community-acquired (CAP) or healthcare-associated pneumonia (HCAP) was conducted from January 2012 through January 2014. Aspiration pneumonia was clinically defined as pneumonia not only occurring in patients after documented aspiration episodes, but also occurring in those with underlying oropharyngeal dysfunction: chronic disturbances of consciousness and/or chronic neuromuscular diseases. We defined thirty-day hospital stay as a long-term hospital stay and compared it with logistic regression analysis. Potential confounders included age, sex, HCAP, body mass index (BMI), long-term bed-ridden state, heart failure, cerebrovascular disorders, dementia, antipsychotics use, hypnotics use, and CURB score which is a clinical prediction tool used to assess the severity, standing for; C (presence of Confusion), U (high blood Urea nitrogen level), R (high Respiratory rate), and B (low Blood pressure). In a sub-analysis, we also explored factors associated with long-term hospital stay in patients with aspiration pneumonia. RESULTS Of 2,795 patients, 878 (31.4%) had aspiration pneumonia. After adjusting potential confounders, the aspiration pneumonia itself was significantly associated with long-term hospital stay (adjusted odds ratio 1.44; 95% confidence interval 1.09-1.89, p < 0.01), as were higher age, male sex, high CURB score, HCAP, low BMI, heart failure, cerebrovascular disease, and antipsychotics use. Sub-analysis revealed factors associated with long-term hospital stay in the aspiration pneumonia, which included male sex, and multi-lobar chest X-ray involvement. CONCLUSIONS Clinically defined aspiration pneumonia itself was independently associated with long-term hospital stay. This result could potentially lead to specific rehabilitation strategies for pneumonia patients with underlying oropharyngeal dysfunction.
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Affiliation(s)
- Takao Wakabayashi
- Department of General and Emergency Medicine, Japan Community Healthcare Organization Sapporo Hokushin Hospital, 2-1,2-Jo,6-Chome, Atsubetsu-Cho, Atsubetsu-Ku, Sapporo, 004-8618, Japan
- Department of General Internal Medicine, Ebetsu City Hospital, Hokkaido, Japan
| | - Sugihiro Hamaguchi
- Department of General Internal Medicine, Ebetsu City Hospital, Hokkaido, Japan.
- Department of General Internal Medicine, Fukushima Medical University, 1, Hikarigaoka, Fukushima, 960-1295, Japan.
| | - Konosuke Morimoto
- Department of Respiratory Infections, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
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Trachalaki A, Sultana N, Wells AU. An update on current and emerging drug treatments for idiopathic pulmonary fibrosis. Expert Opin Pharmacother 2023:1-18. [PMID: 37183672 DOI: 10.1080/14656566.2023.2213436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Idiopathic Pulmonary Fibrosis (IPF) is a progressive and devastating lung disease, characterized by progressive lung scarring. AREAS COVERED Prior to antifibrotic therapy (pirfenidone and nintedanib), there was no validated pharmaceutical therapy for IPF. Both antifibrotics can slow disease progression, however, IPF remains a detrimental disease with poor prognosis and treated survival rates of less than 7 years from diagnosis. Despite their effect the disease remains non-reversible and progressing whilst their side effect profile is often challenging. Treatment of comorbidities is also crucial. In this review, we discuss the current pharmacological management as well as management of comorbidities and symptoms. We also reviewed clinicaltrials.gov and summarised all the mid to late stage clinical trials (phase II and III) registered in IPF over the last 7 years and discuss the most promising drugs in clinical development. EXPERT OPINION Future for IPF management will need to focus on current unresolved issues. First a primary pathogenetic pathway has not been clearly identified. Future management may involve a combination of brushstroke approach with antifibrotics with targeted treatments for specific pathways in patient subsets following an 'oncological' approach. Another unmet need is management of exacerbations, which are deathly in most cases as well as either treating or preventing lung cancer.
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Affiliation(s)
- Athina Trachalaki
- The Margaret Turner Warwick Centre for Fibrosing Lung Diseases, Imperial College London National Heart and Lung Institute, Imperial College, London, UK
- Imperial College NHS Hospitals, London UK
| | | | - Athol Umfrey Wells
- Interstitial Lung Disease Unit, Royal Brompton & Harefield Hospitals, London, UK
- The Margaret Turner Warwick Centre for Fibrosing Lung Diseases, Imperial College London National Heart and Lung Institute, Imperial College, London, UK
- Imperial College NHS Hospitals, London UK
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Chwala M, Hartmann F, Waller K, Dusick A, Viviano K. Change over time and agreement between clinical markers of disease resolution in dogs with aspiration-induced lung injury. Vet Rec 2023; 192:e2280. [PMID: 36251171 DOI: 10.1002/vetr.2280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/23/2022] [Accepted: 09/21/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND There is a lack of consensus regarding which markers of disease resolution to prioritise when assessing treatment response in client-owned dogs with aspiration-induced lung injury. This study describes the change over time and the agreement between the clinical markers used to determine disease resolution. METHODS Physical examination (PE), owner-reported clinical signs (CS-O), thoracic radiographs (TXR) scores and C-reactive protein (CRP) concentrations were determined at enrolment, after 24, 48 and 72 hours, and after 7, 14 and 28 days. RESULTS PE scores were significantly improved at 48 hours, while CRP initially increased (24 hours) and then decreased (48 hours). PE, CS-O and CRP significantly improved earlier (7 days) than TXR (14 days). The median number of days to marker normalisation was 7, 9 and 14 for PE, CRP and CS-O, respectively. Marker agreement was excellent/very good at enrolment and fair/poor during disease recovery. LIMITATIONS Analysis did not control for differences aetiology of aspiration or the lack of standardisation in treatment approach. CONCLUSIONS PE was the earliest and most consistent marker indicating disease resolution. Serial CRP monitoring (72 hours) may provide an objective marker of early treatment response. Alongside PE normalisation, improvement in CS-O, CRP and TRX may assist in determining disease resolution and guide treatments, including limiting antibiotic exposure in dogs with aspiration-induced lung injury.
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Affiliation(s)
| | - Faye Hartmann
- UW Veterinary Care, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Kenneth Waller
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Allison Dusick
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Katrina Viviano
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
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8
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Zhao L, Luo JL, Ali MK, Spiekerkoetter E, Nicolls MR. The Human Respiratory Microbiome: Current Understandings and Future Directions. Am J Respir Cell Mol Biol 2023; 68:245-255. [PMID: 36476129 PMCID: PMC9989478 DOI: 10.1165/rcmb.2022-0208tr] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Microorganisms colonize the human body. The lungs and respiratory tract, previously believed to be sterile, harbor diverse microbial communities and the genomes of bacteria (bacteriome), viruses (virome), and fungi (mycobiome). Recent advances in amplicon and shotgun metagenomic sequencing technologies and data-analyzing methods have greatly aided the identification and characterization of microbial populations from airways. The respiratory microbiome has been shown to play roles in human health and disease and is an area of rapidly emerging interest in pulmonary medicine. In this review, we provide updated information in the field by focusing on four lung conditions, including asthma, chronic obstructive pulmonary disease, cystic fibrosis, and idiopathic pulmonary fibrosis. We evaluate gut, oral, and upper airway microbiomes and how they contribute to lower airway flora. The discussion is followed by a systematic review of the lower airway microbiome in health and disease. We conclude with promising research avenues and implications for evolving therapeutics.
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Affiliation(s)
- Lan Zhao
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, California.,VA Palo Alto Health Care System, Palo Alto, California; and
| | - Jun-Li Luo
- The Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, China
| | - Mohammed Khadem Ali
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, California
| | - Edda Spiekerkoetter
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, California
| | - Mark R Nicolls
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, California.,VA Palo Alto Health Care System, Palo Alto, California; and
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Jaffe N, Ball LJ, Evans S. Feeding and nutrition in the pediatric leukodystrophy patient. Curr Probl Pediatr Adolesc Health Care 2023; 53:101350. [PMID: 36609123 DOI: 10.1016/j.cppeds.2022.101350] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Nicole Jaffe
- Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Laura J Ball
- Mississippi University for Women, Columbus, MS, USA
| | - Sally Evans
- Chief, Rehabilitation Medicine Children's Hospital of Philadelphia
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10
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Patel H, Shah JR, Patel DR, Avanthika C, Jhaveri S, Gor K. Idiopathic pulmonary fibrosis: Diagnosis, biomarkers and newer treatment protocols. Dis Mon 2022:101484. [DOI: 10.1016/j.disamonth.2022.101484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Yoshimatsu Y, Smithard DG. A Paradigm Shift in the Diagnosis of Aspiration Pneumonia in Older Adults. J Clin Med 2022; 11:jcm11175214. [PMID: 36079144 PMCID: PMC9457444 DOI: 10.3390/jcm11175214] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/24/2022] [Accepted: 08/31/2022] [Indexed: 12/22/2022] Open
Abstract
In older adults, community-acquired pneumonia (CAP) is often aspiration-related. However, as aspiration pneumonia (AP) lacks clear diagnostic criteria, the reported prevalence and clinical management vary greatly. We investigated what clinical factors appeared to influence the diagnosis of AP and non-AP in a clinical setting and reconsidered a more clinically relevant approach. Medical records of patients aged ≥75 years admitted with CAP were reviewed retrospectively. A total of 803 patients (134 APs and 669 non-APs) were included. The AP group had significantly higher rates of frailty, had higher SARC-F scores, resided in institutions, had neurologic conditions, previous pneumonia diagnoses, known dysphagia, and were more likely to present with vomiting or coughing on food. Nil by mouth orders, speech therapist referrals, and broad-spectrum antibiotics were significantly more common, while computed tomography scans and blood cultures were rarely performed; alternative diagnoses, such as cancer and pulmonary embolism, were detected significantly less. AP is diagnosed more commonly in frail patients, while aspiration is the underlying aetiology in most types of pneumonia. A presumptive diagnosis of AP may deny patients necessary investigation and management. We suggest a paradigm shift in the way we approach older patients with CAP; rather than trying to differentiate AP and non-AP, it would be more clinically relevant to recognise all pneumonia as just pneumonia, and assess their swallowing functions, causative organisms, and investigate alternative diagnoses or underlying causes of dysphagia. This will enable appropriate clinical management.
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Affiliation(s)
- Yuki Yoshimatsu
- Elderly Care, Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust, London SE18 4QH, UK
- Centre for Exercise Activity and Rehabilitation, School of Human Sciences, University of Greenwich, London SE10 9LS, UK
- Correspondence:
| | - David G. Smithard
- Elderly Care, Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust, London SE18 4QH, UK
- Centre for Exercise Activity and Rehabilitation, School of Human Sciences, University of Greenwich, London SE10 9LS, UK
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12
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Knipe RS, Alba GA, Harvey Barnes JM, Hariri LP. Case 15-2022: A 57-Year-Old Man with Persistent Cough and Pulmonary Opacities. N Engl J Med 2022; 386:1933-1944. [PMID: 35584159 DOI: 10.1056/nejmcpc2201234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Rachel S Knipe
- From the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Massachusetts General Hospital, and the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Harvard Medical School - both in Boston
| | - George A Alba
- From the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Massachusetts General Hospital, and the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Harvard Medical School - both in Boston
| | - Jeanna M Harvey Barnes
- From the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Massachusetts General Hospital, and the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Harvard Medical School - both in Boston
| | - Lida P Hariri
- From the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Massachusetts General Hospital, and the Departments of Medicine (R.S.K., G.A.A.), Radiology (J.M.H.B.), and Pathology (L.P.H.), Harvard Medical School - both in Boston
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13
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Said KB, Alsolami A, Alshammari F, Alreshidi FS, Fathuldeen A, Alrashid F, Bashir AI, Osman S, Aboras R, Alshammari A, Alshammari T, Alharbi SF. Selective COVID-19 Coinfections in Diabetic Patients with Concomitant Cardiovascular Comorbidities Are Associated with Increased Mortality. Pathogens 2022; 11:508. [PMID: 35631029 PMCID: PMC9145452 DOI: 10.3390/pathogens11050508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/15/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
Coinfections and comorbidities add additional layers of difficulties into the challenges of COVID-19 patient management strategies. However, studies examining these clinical conditions are limited. We have independently investigated the significance of associations of specific bacterial species and different comorbidities in the outcome and case fatality rates among 129 hospitalized comorbid COVID-19 patients. For the first time, to best of our knowledge, we report on the predominance of Klebsiella pneumoniae and Acinetobacter baumannii in COVID-19 non-survival diabetic patients The two species were significantly associated to COVID-19 case fatality rates (p-value = 0.02186). Coinfection rates of Klebsiella pneumoniae and Acinetobacter baumannii in non-survivors were 93% and 73%, respectively. Based on standard definitions for antimicrobial resistance, Klebsiella pneumoniae and Acinetobacter baumannii were classified as multidrug resistant and extremely drug resistant, respectively. All patients died at ICU with similar clinical characterisitics. Of the 28 major coinfections, 24 (85.7%) were in non-survivor diabetic patients, implying aggravating and worsening the course of COVID-19. The rates of other comorbidities varied: asthma (47%), hypertension (79.4%), ischemic heart disease (71%), chronic kidney disease (35%), and chronic liver disease (32%); however, the rates were higher in K. pneumoniae and were all concomitantly associated to diabetes. Other bacterial species and comorbidities did not have significant correlation to the outcomes. These findings have highly significant clinical implications in the treatment strategies of COVID-19 patients. Future vertical genomic studies would reveal more insights into the molecular and immunological mechanisms of these frequent bacterial species. Future large cohort multicenter studies would reveal more insights into the mechanisms of infection in COVID-19.
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Affiliation(s)
- Kamaleldin B. Said
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia; (A.A.); (T.A.); (S.F.A.)
- Department of Genomics, Bioinformatics and Systems Biology, Carleton University, 1125 Colonel-By Drive, Ottawa, ON K1S 5B6, Canada
- ASC Molecular Bacteriology, McGill University, 21111 Lakeshore Rd, Montreal, QC H9X 3L9, Canada
| | - Ahmed Alsolami
- Department of Internal Medicine, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia;
| | - Fawwaz Alshammari
- Department of Dermatology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia;
| | - Fayez Saud Alreshidi
- Department of Family, Community Medicine, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia; (F.S.A.); (R.A.)
| | - Anas Fathuldeen
- Department of Plastic Surgery, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia;
| | - Fawaz Alrashid
- Department of Surgery, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia;
| | - Abdelhafiz I. Bashir
- Department of Physiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia;
| | - Sara Osman
- Department of Internal Medicine, Winchester Hospital 41 Highland Avenue, Winchester, MA 01890, USA;
| | - Rana Aboras
- Department of Family, Community Medicine, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia; (F.S.A.); (R.A.)
| | - Abdulrahman Alshammari
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia; (A.A.); (T.A.); (S.F.A.)
| | - Turki Alshammari
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia; (A.A.); (T.A.); (S.F.A.)
| | - Sultan F. Alharbi
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia; (A.A.); (T.A.); (S.F.A.)
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Shiferaw SM, Mengistie EA, Aknaw GM, Amare AT, Azanaw KA. Incidence and Predictors of Aspiration Pneumonia Among Traumatic Brain Injury in Northwest Ethiopia. OPEN ACCESS EMERGENCY MEDICINE 2022; 14:85-98. [PMID: 35280842 PMCID: PMC8906894 DOI: 10.2147/oaem.s335927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 02/10/2022] [Indexed: 12/01/2022] Open
Abstract
Background A significantly greater proportion of patients who die due to aspiration pneumonia were diagnosed with in-hospital aspiration pneumonia (19%). The incidence and major predictors are not known clearly, especially in Ethiopia. Objective To determine the incidence and predictors of aspiration pneumonia among adult traumatic brain injury patients at Felege Hiwot comprehensive specialized hospital, Bahir Dar, North west Ethiopia, in 2021. Methods An institution-based retrospective study was conducted from all admitted adult traumatic brain injury patients at Felege Hiwot comprehensive specialized hospital from January 1, 2015 to December 31, 2020 for 51 days of survival. Descriptive statistics, Kaplan–Meier survival curve log rank test, and the Cox proportional hazard regression model were used. Results A total of 396 adult patients diagnosed and admitted with traumatic brain injury in the past 5 years were included. Seventy patients (17.67%) developed aspiration pneumonia, providing an incidence rate of 32.39 (95% CI=25-62–40.94) per 1,000 person days of observation. Independent predictors were being referred for AHR (2.43; 95% CI=1.12–5.25), nasogastric tube insertion AHR (3.02; 95% CI=1.43–6.39), and baseline Glasgow coma scale <8 AHR (3.88; 95% CI=1.42–10.062). Conclusion Having a nasogastric tube and low baseline Glasgow coma scale were significant predictors. This improves prehospital and hospital care during transportation and admission time.
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Affiliation(s)
- Sahlu Mitku Shiferaw
- Department of Adult Health Nursing, Debre Tabor Health Science College, Debre Tabor, Ethiopia
- Correspondence: Sahlu Mitku Shiferaw, Department of Adult Health Nursing, Debre Tabor Health Science College, Po Box 83, Debre Tabor, Amhara Region, Ethiopia, Email
| | - Emiru Ayalew Mengistie
- Department of Adult Health, Nursing College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Getasew Mulatu Aknaw
- Department of Emergency Medicine and Critical Care, Nursing College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Abraham Tsedalu Amare
- Department of Adult Health Nursing, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Kefyalew Amogne Azanaw
- Department of Reproductive and Child Health, Debre Tabor Health Science College, Debre Tabor, Ethiopia
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15
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Buxton L, Hasan M. A Case of Chronic Aspiration Bronchiolitis. Cureus 2022; 14:e22562. [PMID: 35371767 PMCID: PMC8958119 DOI: 10.7759/cureus.22562] [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: 02/23/2022] [Indexed: 11/23/2022] Open
Abstract
Chronic aspiration bronchiolitis or diffuse aspiration bronchiolitis is a rare disease characterized by chronic inflammation of the bronchioles due to recurrent aspiration of foreign material. To date, there are limited data on chronic aspiration bronchiolitis because it is often present subclinically or remains undiscovered until autopsy. Additionally, time to diagnosis is often prolonged and includes invasive workup prior to definitive diagnosis. Here, we present a case of lung disease attributed to chronic aspiration after a thorough workup resulted in histopathology consistent with a primary diagnosis of aspiration bronchiolitis. Radiographic and pathologic specimens also demonstrated features of usual interstitial pneumonia adding to the complexity of pathology that can be seen with aspiration diseases.
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16
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Puri G, Naura AS. Implication of mitochondrial ROS-NLRP3 inflammasome axis during two-hit mediated acute lung injury in mice. Free Radic Res 2022; 56:1-16. [PMID: 35129032 DOI: 10.1080/10715762.2021.2023740] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Acute lung injury (ALI) caused by acid aspiration often accompanies bacterial components leading to exaggerated inflammation and can result in acute respiratory distress syndrome (ARDS), but the underlying mechanisms behind such an exacerbation remain unclear. NLRP3 inflammasome and mitochondrial ROS (mtROS) have been implicated in ALI but its role in injury caused through two hit i.e. Hydrochloric acid (HCl) + Lipopolysaccharide (LPS) is not known. Therefore, the present study is designed to elucidate the role of mtROS-NLPR3 inflammasome upon "two-hit" mediated ALI. Our data showed that "two-hit" induced ALI results in aggravated lung inflammation as compared to either of single hit(s) as reflected by a steep increase in inflammatory cells particularly neutrophils in bronchoalveolar lavage fluid (BALF). Further, enhanced inflammation was associated with increased mtROS as depicted by data on mean fluorescence intensity (MFI) of MitoSOX+ neutrophils and macrophages in BALF of two-hit simulated mice. Importantly, ALI results in activation of NLRP3 inflammasome as reflected by active caspase-1 protein expression and IL-1β levels. Interestingly, NLRP3 inflammasome inhibitor, MCC950 suppressed the lung inflammation remarkably. Further, Mito-tempo, a mitochondrial-targeted antioxidant, halted "two-hit" mediated NLRP3 inflammasome activation and IL-1β release followed by amelioration of lung inflammation. Suppression in MFI of MitoSOX+ stained neutrophils and macrophages by Mito-tempo was associated with down-regulation of phospho-p65-NF-κB and its dependent genes (IL-1β/TNF-α/IL-6). Overall, our data suggest that NLRP3 inflammasome activation by mtROS plays a critical role in pathogenesis of exaggerated inflammation and therefore targeting mtROS-NLRP3 inflammasome axis may be an attractive option for combating ALI/ARDS.
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Affiliation(s)
- Gayatri Puri
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - Amarjit S Naura
- Department of Biochemistry, Panjab University, Chandigarh, India
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17
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Palmer PM, Padilla AH. Risk of an Adverse Event in Individuals Who Aspirate: A Review of Current Literature on Host Defenses and Individual Differences. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2022; 31:148-162. [PMID: 34731584 DOI: 10.1044/2021_ajslp-20-00375] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
PURPOSE The presence of oropharyngeal dysphagia increases the likelihood of prandial aspiration, and aspiration increases the likelihood of a dysphagia-related pulmonary sequelae such as aspiration pneumonia, acute respiratory distress syndrome, pulmonary fibrosis, and even death. Although these outcomes are unfortunate, it is important to point out that these consequences are not solely determined by the presence of aspiration. The purpose of this tutorial is to provide current information on pulmonary defenses and the variables that increase risk of an adverse outcome in individuals who aspirate. METHOD This tutorial reviews the basics of lung defenses and summarizes the literature to make the case that the host is a central theme in dysphagia management. Case studies are employed to highlight the key variables. RESULTS Based on a literature review, a series of questions are proposed for consideration in dysphagia management. These questions, which take the focus away from the presence of aspiration and toward the associated risks within an individual, are then applied to two case studies. CONCLUSIONS A guiding framework is proposed to encourage clinicians to assess more than the presence of aspiration and consider the individual's ability to cope with the aspirated material. In the presence of aspiration, clinicians are urged to focus on the risk factors that can lead to a negative consequence, identify which factors are modifiable, and determine when a level of risk is acceptable.
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Affiliation(s)
- Phyllis M Palmer
- Department of Speech and Hearing Sciences, The University of New Mexico, Albuquerque
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18
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Sakuranaka H, Nakagawa T, Yokota S, Takahashi E, Yamakawa Y, Hirata A, Igei K, Okamoto N, Ichioka M. Unilateral methotrexate-induced lung injury with foreign bodies in the airway: A case report. Respir Med Case Rep 2022; 36:101573. [PMID: 35036304 PMCID: PMC8749056 DOI: 10.1016/j.rmcr.2021.101573] [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] [Received: 12/07/2021] [Accepted: 12/30/2021] [Indexed: 11/18/2022] Open
Abstract
A 75-year-old woman who had been taking methotrexate presented to our hospital for fever and dry cough. Chest computed tomography showed ground-glass opacity in the upper lobe of the right lung and foreign bodies in the lower lobe of the right bronchus. During bronchoscopy, foreign bodies were removed from the airway. We found increased levels of lymphocytes and a high CD4/CD8 ratio in the bronchoalveolar lavage fluid. Transbronchial lung biopsy revealed lymphocytic infiltration. Methotrexate was discontinued, and the imaging findings improved. Methotrexate-induced lung injury does occur unilaterally. Foreign bodies in the airway might also trigger unilateral methotrexate-induced lung injury.
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Affiliation(s)
- Haruyasu Sakuranaka
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
- Corresponding author.
| | - Takashi Nakagawa
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
- Department of Internal Medicine, Division of Respiratory Medicine, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-Ku, Tokyo, 173-8601, Japan
| | - Shun Yokota
- Department of Internal Medicine, Division of Respiratory Medicine, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-Ku, Tokyo, 173-8601, Japan
| | - Eichi Takahashi
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
- Department of Internal Medicine, Division of Respiratory Medicine, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-Ku, Tokyo, 173-8601, Japan
| | - Yuji Yamakawa
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
| | - Akifumi Hirata
- Department of Internal Medicine, Division of Respiratory Medicine, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-Ku, Tokyo, 173-8601, Japan
| | - Koumei Igei
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
- Department of Internal Medicine, Division of Respiratory Medicine, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-Ku, Tokyo, 173-8601, Japan
| | - Naoki Okamoto
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
| | - Masahiko Ichioka
- Department of Respiratory Medicine, Toshima Hospital, Tokyo Metropolitan Health and Hospitals Corporation, 33-1, Sakaecho, Itabashi-Ku, Tokyo, 173-0015, Japan
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Niccum M, Callahan R, Gauvreau K, Jenkins KJ. Aspiration Is Associated with Poor Treatment Response in Pediatric Pulmonary Vein Stenosis. CHILDREN (BASEL, SWITZERLAND) 2021; 8:783. [PMID: 34572215 PMCID: PMC8471903 DOI: 10.3390/children8090783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 12/02/2022]
Abstract
Intraluminal pulmonary vein stenosis is a disease with significant morbidity and mortality, though recent progress has been made using multimodal therapy with antiproliferative agents. The aim of this study was to evaluate the association between aspiration and poor treatment response in patients with intraluminal pulmonary vein stenosis. A retrospective, single-center cohort analysis was performed of patients treated with a combination of imatinib mesylate and multimodal anatomic relief between March 2009 and November 2019. Analysis focused on 2-ventricle patients due to small numbers and clinical heterogeneity of single ventricle patients. Among the 84 patients included, 15 had single ventricle physiology and 69 had 2-ventricle physiology. Among the 2-ventricle group, multivariable analysis revealed that patients with clinical aspiration had nearly five times higher odds of poor treatment response than patients without aspiration (OR 4.85, 95% CI [1.37, 17.2], p = 0.014). Furthermore, male patients had higher odds of poor treatment response than their female counterparts (OR 3.67, 95% CI [1.04, 12.9], p = 0.043). Aspiration is a novel, potentially modifiable risk factor for poor treatment response in pediatric multi-vessel intraluminal pulmonary vein stenosis in patients with 2-ventricle physiology.
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Affiliation(s)
- Maria Niccum
- Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA;
| | - Ryan Callahan
- Department of Cardiology, Boston Children’s Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA; (R.C.); (K.G.)
| | - Kimberlee Gauvreau
- Department of Cardiology, Boston Children’s Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA; (R.C.); (K.G.)
| | - Kathy J. Jenkins
- Department of Cardiology, Boston Children’s Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA; (R.C.); (K.G.)
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20
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Hadad H, de Jesus LK, Poli PP, Garcia-Júnior IR, Souza FÁ, de Oliveira FRG. Aspiration of the dental crown in an elderly patient. Radiol Case Rep 2021; 16:2280-2285. [PMID: 34194591 PMCID: PMC8233169 DOI: 10.1016/j.radcr.2021.05.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 01/29/2023] Open
Abstract
The aspiration of objects and foreign bodies requires quick and systematic care. During emergent orotracheal intubation, accidental dental crown release can cause a threat to the patient's life. This paper aimed to report a case of foreign body (dental prosthetic crown) aspiration and its management and discuss alternative approaches. An 81-year-old male patient, who was admitted to the hospital's intensive care unit (ICU) for meningitis, presented with altered consciousness, and decreased oxygen saturation. He underwent emergent orotracheal intubation. After intubation, chest radiography was performed to check for proper orotracheal tube positioning and lung expansion. The resultant images revealed the presence of a foreign body within the right lower lobe bronchus in the shape of a dental crown. The foreign body, intubation cannula and basket clamp were successfully removed, followed by reintubation of the patient. The foreign body was a prosthetic upper premolar dental crown (24). While care should be taken to avoid complications, if a foreign body is aspirated during emergent orotracheal intubation, endoscopic removal appears safe and effective. Careful creation, placement, maintenance, and preservation of prosthetic crowns are critically important in elderly patients.
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Affiliation(s)
- Henrique Hadad
- Oral & Maxillofacial Surgery, Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Brazil
| | - Laís Kawamata de Jesus
- Oral & Maxillofacial Surgery, Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Brazil
| | - Pier Paolo Poli
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Idelmo Rangel Garcia-Júnior
- Oral & Maxillofacial Surgery, Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Brazil
| | - Francisley Ávila Souza
- Oral & Maxillofacial Surgery, Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Brazil
| | - Flávio Roberto Garbelini de Oliveira
- Thoracic Surgeon and Bronchoscopist, Unimed Hospital, Araçatuba, Brazil.,Professor of Medicine, Salesian Catholic University Center Auxilium (UNISALESINO), Araçatuba, Brazil
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21
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Franquet T, Franks TJ, Galvin JR, Marchiori E, Giménez A, Mazzini S, Johkoh T, Lee KS. Non-Infectious Granulomatous Lung Disease: Imaging Findings with Pathologic Correlation. Korean J Radiol 2021; 22:1416-1435. [PMID: 34132073 PMCID: PMC8316771 DOI: 10.3348/kjr.2020.1082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/26/2020] [Accepted: 11/01/2020] [Indexed: 12/14/2022] Open
Abstract
Non-infectious granulomatous lung disease represents a diverse group of disorders characterized by pulmonary opacities associated with granulomatous inflammation, a relatively nonspecific finding commonly encountered by pathologists. Some lesions may present a diagnostic challenge because of nonspecific imaging features; however, recognition of the various imaging manifestations of these disorders in conjunction with patients' clinical history, such as age, symptom onset and duration, immune status, and presence of asthma or cutaneous lesions, is imperative for narrowing the differential diagnosis and determining appropriate management of this rare group of disorders. In this pictorial review, we describe the pathologic findings of various non-infectious granulomatous lung diseases as well as the radiologic features and high-resolution computed tomography imaging features.
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Affiliation(s)
- Tomás Franquet
- Department of Diagnostic Radiology, Hospital de Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain.
| | - Teri J Franks
- Department of Defense, Pulmonary & Mediastinal Pathology, The Joint Pathology Center, Silver Spring, MD, USA
| | - Jeffrey R Galvin
- Department of Diagnostic Radiology, Chest Imaging, & Pulmonary Critical Care Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Edson Marchiori
- Department of Radiology, Hospital Universitário Clementino Fraga Filho-Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Ana Giménez
- Department of Diagnostic Radiology, Hospital de Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Sandra Mazzini
- Department of Diagnostic Radiology, Hospital de Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Takeshi Johkoh
- Department of Radiology, Kansai Rosai Hospital, Hyogo, Japan
| | - Kyung Soo Lee
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine (SKKU-SOM), Seoul, Korea
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22
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Sivak E, Mpody C, Willer BL, Tobias J, Nafiu OO. Race and major pulmonary complications following inpatient pediatric otolaryngology surgery. Paediatr Anaesth 2021; 31:444-451. [PMID: 33502081 DOI: 10.1111/pan.14142] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 01/04/2021] [Accepted: 01/13/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Compared to their white peers, black children are more likely to experience serious respiratory complications in the perioperative period. Whether a racial difference exists in the occurrence of late postoperative respiratory complications is largely unknown. Here, we evaluated a multi-institutional cohort of children who underwent various elective otolaryngology procedures to examine the racial differences in major postoperative pulmonary complications. METHODS We performed a retrospective analysis of elective inpatient otolaryngology cases from the National Surgical Quality Improvement Program (2012-2018). We used propensity score matching of black to white patients to compare the risk of postoperative pulmonary complications, defined as the occurrence of either pneumonia, unplanned reintubation, or prolonged postoperative mechanical ventilation. RESULTS The matched cohort was comprised of 4786 black and white patients (2 393 of each race). Black children were more likely to develop postoperative pulmonary complications compared to white peers (29.3% vs. 24.2%; odds ratio: 1.38; 95% confidence interval: 1.20, 1.59; P-value < .001). Furthermore, black children were almost two times more likely to require unplanned postoperative reintubation, relative to their white peers (2.6% vs. 1.3%; odds ratio: 2.07; 95% confidence interval: 1.33, 3.22; P-value < .001). Similarly, black children were estimated to have 37% relative greater odds of requiring prolonged mechanical ventilation (28.6% vs. 23.7%; 95% confidence interval: 1.19, 1.58; P-value < .001). Finally, being of black race conferred greater odds of requiring prolonged hospital length of stay, relative to being of white race (38.6% vs. 34.5%; odds ratio:1.24; 95% confidence interval: 1.09, 1.42; P-value = .004). CONCLUSION Black children undergoing elective otolaryngological surgery are more likely to develop major postoperative pulmonary complications.
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Affiliation(s)
- Erica Sivak
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Christian Mpody
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Brittany L Willer
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Joseph Tobias
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Olubukola O Nafiu
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
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23
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Arenas-Jiménez J, Plasencia-Martínez J, García-Garrigós E. When pneumonia is not COVID-19. RADIOLOGIA 2021. [PMCID: PMC7813497 DOI: 10.1016/j.rxeng.2020.11.003] [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] [Indexed: 01/08/2023]
Abstract
During the COVID-19 epidemic, the prevalence of the disease means that practically any lung opacity on an X-ray could represent pneumonia due to infection with SARS-CoV-2. Nevertheless, atypical radiologic findings add weight to negative microbiological or serological tests. Likewise, outside the epidemic wave and with the return of other respiratory diseases, radiologists can play an important role in decision making about diagnoses, treatment, or preventive measures (isolation), provided they know the key findings for entities that can simulate COVID-19 pneumonia. Unifocal opacities or opacities located in upper lung fields and predominant airway involvement, in addition to other key radiologic and clinical findings detailed in this paper, make it necessary to widen the spectrum of possible diagnoses.
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24
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Arenas-Jiménez JJ, Plasencia-Martínez JM, García-Garrigós E. When pneumonia is not COVID-19. RADIOLOGIA 2021; 63:180-192. [PMID: 33339621 PMCID: PMC7699022 DOI: 10.1016/j.rx.2020.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/04/2020] [Accepted: 11/13/2020] [Indexed: 01/08/2023]
Abstract
During the COVID-19 epidemic, the prevalence of the disease means that practically any lung opacity on an X-ray could represent pneumonia due to infection with SARS-CoV-2. Nevertheless, atypical radiologic findings add weight to negative microbiological or serological tests. Likewise, outside the epidemic wave and with the return of other respiratory diseases, radiologists can play an important role in decision making about diagnoses, treatment, or preventive measures (isolation), provided they know the key findings for entities that can simulate COVID-19 pneumonia. Unifocal opacities or opacities located in upper lung fields and predominant airway involvement, in addition to other key radiologic and clinical findings detailed in this paper, make it necessary to widen the spectrum of possible diagnoses.
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Affiliation(s)
- J J Arenas-Jiménez
- Servicio de Radiodiagnóstico, Hospital General Universitario de Alicante. Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, España.
| | - J M Plasencia-Martínez
- Área de Urgencias y de Imagen Cardiaca, Servicio de Radiodiagnóstico, Hospital Universitario Morales Meseguer, Murcia, España
| | - E García-Garrigós
- Servicio de Radiodiagnóstico, Hospital General Universitario de Alicante. Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, España
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25
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Presenting Clinicoradiologic Features, Causes, and Clinical Course of Exogenous Lipoid Pneumonia in Adults. Chest 2021; 160:624-632. [PMID: 33647249 DOI: 10.1016/j.chest.2021.02.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Exogenous lipoid pneumonia (ELP) develops when lipid-containing substances enter the airways through aspiration or inhalation and incite an inflammatory response. The diagnosis of ELP often is difficult because findings may be nonspecific. The clinical course of ELP has not been well characterized. RESEARCH QUESTION What are the presenting clinicoradiologic features of ELP, its causative agents, and clinical course? STUDY DESIGN AND METHODS We searched the Mayo Clinic electronic medical records for patients diagnosed with ELP between 1998 and 2020. Inclusion diagnostic criteria were: (1) lipoid pneumonia (LP) on histopathologic examination, (2) lipid-laden macrophages in BAL fluid, or (3) fatty attenuation of parenchymal opacities on chest CT imaging. Additionally, all patients were required to have a clinician diagnosis of LP in the absence of conditions known to cause endogenous LP. RESULTS Thirty-four patients were identified. Mean age was 71 years, with no sex predominance; one-half were asymptomatic. The diagnosis was confirmed by lung biopsy (including three lobectomies for suspected malignancy) in 71% of patients, CT scan in 24% of patients, and BAL in 5% of patients. Most patients manifested bilateral parenchymal opacities that commonly involved the lower lobes; fatty attenuation was identifiable in only 41% of patients. A causative substance was identified in 79% of patients, in most cases after the diagnosis was established. Over a median follow-up of 1.2 years, only 20% of patients with chronic respiratory symptoms improved, whereas 50% worsened. Over a median follow-up interval of 1 year, CT scan abnormalities improved or resolved in 33% of patients and progressed in 39% of patients. Patients who deteriorated were older, with a higher prevalence of GI disorders than those who remained stable or improved. INTERPRETATION ELP often is asymptomatic and may not manifest fatty attenuation on chest CT imaging. Clinical and radiologic abnormalities persist or worsen in most affected patients, even when the causative agent is discontinued.
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26
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Cui Y, Cui Y. [Intraoperative Aspiration]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2021; 23:393-401. [PMID: 32429641 PMCID: PMC7260386 DOI: 10.3779/j.issn.1009-3419.2020.101.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
术中误吸是外科手术中常见的肺部并发症,麻醉和体位是导致术中误吸的主要因素。近年来,围手术期肺保护已受到外科和麻醉医师的广泛关注,如何加速术后康复进程,减少相关并发症发生,显著改善患者预后已成为当前外科治疗的主要目标。本文将以术中误吸为重点,从解剖、病理生理、表现、诊断、处理和预防等方面展开综述。
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Affiliation(s)
- Yiyao Cui
- Department of Thoracic Surgery, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - Yong Cui
- Department of Thoracic Surgery, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
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Sandoval-Munoz CP, Haidar ZS. Neuro-Muscular Dentistry: the "diamond" concept of electro-stimulation potential for stomato-gnathic and oro-dental conditions. Head Face Med 2021; 17:2. [PMID: 33499906 PMCID: PMC7836574 DOI: 10.1186/s13005-021-00257-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 01/19/2021] [Indexed: 01/17/2023] Open
Abstract
Oro-Pharyngeal Dysphagia - or simply dysphagia - is the difficulty (persistent) in swallowing/passing food and/or liquid from the mouth to the pharynx into the esophagus and finally the stomach; a deglutition disorder (a symptom, by definition, often due to neuro-degenerative/−muscular, drug-induced or localized structural pathologies such as head and neck tumors, lesions and associated surgical and/or radiation injuries) linked to severe consequences on Quality of Life (QoL), including malnutrition, dehydration, and even sudden death. Likewise, Temporo-Mandibular Jaw and Joint disorder(s) – or simply TMD – is a multifactorial etiological condition, regularly encountered in the dental office. Whether due to malocclusion, bruxism, stress and/or trauma, TMD destabilizes the whole cranio-mandibular system structurally and functionally, via affecting mastication, teeth, supporting structures, comfort and aesthetics, and thus, QoL, again. While several treatment regimens do exist for such conditions, some of which have been standardized for use over the years, most continue to lack proper evidence-based literature support. Hence, (1) caution is to be exercised; and (2) the need for alternative therapeutic strategies is amplified, subsequently, the door for innovation is wide open. Indeed, neuromuscular electrical stimulation or “NMES”, is perhaps a fine example. Herein, we present the interested oro-dental health care provider with an up-dated revision of this therapeutic modality, its potential benefits, risks and concerns, to best handle the dysphagic patient: an intra-disciplinary approach or strategy bridging contemporary dentistry with speech and language therapy; a rather obscure and un-discovered yet critical allied health profession. A pre-clinical and clinical prospectus on employing inventive NMES-based regimens and devices to manage TMD is also highlighted.
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Affiliation(s)
- Catalina P Sandoval-Munoz
- BioMAT'X (Laboratorio de Biomateriales, Farmacéuticos y Bioingeniería de Tejidos Cráneo Máxilo-Facial), Universidad de los Andes, Mons. Álvaro del Portillo 12.455 - Las Condes, Santiago, Chile
| | - Ziyad S Haidar
- BioMAT'X (Laboratorio de Biomateriales, Farmacéuticos y Bioingeniería de Tejidos Cráneo Máxilo-Facial), Universidad de los Andes, Mons. Álvaro del Portillo 12.455 - Las Condes, Santiago, Chile. .,Programa de Doctorado en BioMedicina, Facultad de Medicina, Universidad de los Andes, Mons. Álvaro del Portillo 12.455 - Las Condes, Santiago, Chile. .,Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Mons. Álvaro del Portillo 12.455 - Las Condes, Santiago, Chile. .,Facultad de Odontología, Universidad de los Andes, Mons. Álvaro del Portillo 12.455 - Las Condes, Santiago, Chile.
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Megahed MM, El-Menshawy AM, Ibrahim AM. Use of Early Bronchoscopy in Mechanically Ventilated Patients with Aspiration Pneumonitis. Indian J Crit Care Med 2021; 25:146-152. [PMID: 33707891 PMCID: PMC7922441 DOI: 10.5005/jp-journals-10071-23718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background and objectives Aspiration-induced lung injury accounts for a significant proportion of acute pulmonary dysfunction. Few studies were conducted to study the use of early bronchoscopy in mechanically ventilated patients with aspiration pneumonitis. This study aimed at assessing the clinical impact of early bronchoscopy for removal of gastric fluid and solid particles in the first 24 hours of mechanical ventilation (MV) on the progression of aspiration, MV days, intensive care unit (ICU) stay, development of pneumonia, and ICU mortality. Materials and methods The study was an open-label randomized control trial and included 76 adult subjects mechanically ventilated due to aspiration pneumonitis, half the subjects received early bronchoscopy in the first 24 hours after aspiration for removal of aspirated material and bronchoalveolar lavage sampling, the other half received standard treatment. Results The intervention group had a significant reduction in the rate of development of pneumonia at 60.5 vs 81.6%, p = 0.043 through the first week of admission, the intervention group has a significantly better hypoxic index (HI), white blood count, clinical pulmonary infection score, lung injury score, and sepsis-related organ failure assessment (SOFA) score compared to the control group. Although there was a reduction in mechanical ventilation days and ICU mortality in the intervention group vs control group that difference did not reach statistical significance. Conclusions Early bronchoscopy in mechanically ventilated patients with aspiration pneumonitis can be beneficial in improving respiratory functions and decreasing the incidence of development of aspiration pneumonia and may guide the de-escalation of antibiotic therapy. How to cite this article Megahed MM, El-Menshawy AM, Ibrahim AM. Use of Early Bronchoscopy in Mechanically Ventilated Patients with Aspiration Pneumonitis. Indian J Crit Care Med 2021;25(2):146–152.
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Affiliation(s)
- Mohammed M Megahed
- Department of Critical Care Medicine, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ahmed M El-Menshawy
- Department of Critical Care Medicine, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ahmed M Ibrahim
- Department of Critical Care Medicine, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Mogi M, Hori H, Fukuchi T, Sugawara H. "Tree-in-bud" opacities with false-positive Gaffky score and diffuse aspiration bronchiolitis. J Gen Fam Med 2020; 21:277-279. [PMID: 33304728 PMCID: PMC7689222 DOI: 10.1002/jgf2.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/08/2020] [Accepted: 08/24/2020] [Indexed: 12/04/2022] Open
Abstract
We present a case of diffuse aspiration bronchiolitis (DAB) with a false-positive Gaffky score. "Tree-in-bud" opacities detected after aspiration should be considered DAB rather than mycobacterial infection.
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Affiliation(s)
- Mizuki Mogi
- Division of General MedicineDepartment of Comprehensive Medicine 1Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Hiroshi Hori
- Division of General MedicineDepartment of Comprehensive Medicine 1Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Takahiko Fukuchi
- Division of General MedicineDepartment of Comprehensive Medicine 1Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Hitoshi Sugawara
- Division of General MedicineDepartment of Comprehensive Medicine 1Saitama Medical CenterJichi Medical UniversitySaitamaJapan
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Chau AS, Cole BL, Debley JS, Nanda K, Rosen ABI, Bamshad MJ, Nickerson DA, Torgerson TR, Allenspach EJ. Heme oxygenase-1 deficiency presenting with interstitial lung disease and hemophagocytic flares. Pediatr Rheumatol Online J 2020; 18:80. [PMID: 33066778 PMCID: PMC7565350 DOI: 10.1186/s12969-020-00474-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 10/06/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Heme oxygenase-1 (HMOX1) catalyzes the metabolism of heme into carbon monoxide, ferrous iron, and biliverdin. Through biliverdin reductase, biliverdin becomes bilirubin. HMOX1-deficiency is a rare autosomal recessive disorder with hallmark features of direct antibody negative hemolytic anemia with normal bilirubin, hyperinflammation and features similar to macrophage activation syndrome. Clinical findings have included asplenia, nephritis, hepatitis, and vasculitis. Pulmonary features and evaluation of the immune response have been limited. CASE PRESENTATION We present a young boy who presented with chronic respiratory failure due to nonspecific interstitial pneumonia following a chronic history of infection-triggered recurrent hyperinflammatory flares. Episodes included hemolysis without hyperbilirubinemia, immunodeficiency, hepatomegaly with mild transaminitis, asplenia, leukocytosis, thrombocytosis, joint pain and features of macrophage activation with negative autoimmune serologies. Lung biopsy revealed cholesterol granulomas. He was found post-mortem by whole exome sequencing to have a compound heterozygous paternal frame shift a paternal frame shift HMOX1 c.264_269delCTGG (p.L89Sfs*24) and maternal splice donor HMOX1 (c.636 + 2 T > A) consistent with HMOX1 deficiency. Western blot analysis confirmed lack of HMOX1 protein upon oxidant stimulation of the patient cells. CONCLUSIONS Here, we describe a phenotype expansion for HMOX1-deficiency to include not only asplenia and hepatomegaly, but also interstitial lung disease with cholesterol granulomas and inflammatory flares with hemophagocytosis present in the bone marrow.
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Affiliation(s)
- Alice S. Chau
- grid.34477.330000000122986657Division of Allergy & Infectious Disease, Department of Medicine, University of Washington, Seattle, Washington USA ,grid.240741.40000 0000 9026 4165Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Jack MacDonald Building – 6th floor, 1900 9th Avenue, Seattle, Washington 98101 USA
| | - Bonnie L. Cole
- grid.34477.330000000122986657Department of Pathology and Laboratory Medicine, University of Washington, Seattle, Washington USA ,grid.507913.9Brotman Baty Institute for Precision Medicine, Seattle, Washington USA
| | - Jason S. Debley
- grid.240741.40000 0000 9026 4165Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Jack MacDonald Building – 6th floor, 1900 9th Avenue, Seattle, Washington 98101 USA ,grid.34477.330000000122986657Department of Pediatrics, University of Washington, Seattle, Washington USA
| | - Kabita Nanda
- grid.34477.330000000122986657Department of Pediatrics, University of Washington, Seattle, Washington USA
| | - Aaron B. I. Rosen
- grid.240741.40000 0000 9026 4165Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Jack MacDonald Building – 6th floor, 1900 9th Avenue, Seattle, Washington 98101 USA
| | - Michael J. Bamshad
- grid.507913.9Brotman Baty Institute for Precision Medicine, Seattle, Washington USA ,grid.34477.330000000122986657Department of Pediatrics, University of Washington, Seattle, Washington USA ,grid.34477.330000000122986657Genome Sciences, University of Washington, Seattle, Washington USA
| | - Deborah A. Nickerson
- grid.507913.9Brotman Baty Institute for Precision Medicine, Seattle, Washington USA ,grid.34477.330000000122986657Genome Sciences, University of Washington, Seattle, Washington USA
| | - Troy R. Torgerson
- grid.507729.eExperimental Immunology, Allen Institute, Seattle, Washington USA
| | - Eric J. Allenspach
- grid.240741.40000 0000 9026 4165Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Jack MacDonald Building – 6th floor, 1900 9th Avenue, Seattle, Washington 98101 USA ,grid.507913.9Brotman Baty Institute for Precision Medicine, Seattle, Washington USA ,grid.34477.330000000122986657Department of Pediatrics, University of Washington, Seattle, Washington USA
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Trachalaki A, Irfan M, Wells AU. Pharmacological management of Idiopathic Pulmonary Fibrosis: current and emerging options. Expert Opin Pharmacother 2020; 22:191-204. [PMID: 32993388 DOI: 10.1080/14656566.2020.1822326] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Idiopathic Pulmonary Fibrosis is a chronic, progressive lung disease characterized by worsening lung scarring and the radiological/histological pattern of usual interstitial pneumonia. Substantial progress has been made in the clinical management of IPF in the last decade. The two novel antifibrotics, Nintedanib and Pirfenidone have changed the landscape of IPF, by hindering disease progression; however, the drugs have significant discontinuation rates, due to adverse events and do not offer a definitive cure, as such IPF remains a deleterious disease with poor survival. AREAS COVERED In this review, the authors focus on the current and emerging pharmacological options in the treatment of IPF. They include a summary of the current approach including treatment of comorbidities and then discuss promising drugs in the drug pipeline. EXPERT OPINION IPF remains a disease with detrimental outcomes. The plethora of emerging pharmacological treatments brings hope for the future. The current pharmacological 'one fits all' approach has been proven effective in slowing disease progression. The future lies in an oncological approach with combination of therapies. We expect to see a change in clinical trial endpoints and a more inclusive approach for the diagnosis of IPF. ABBREVIATION LIST AE: Acute ExacerbationA-SMA: a smooth muscle actinATX: AutotaxinCOPD: Combined Obstructive Pulmonary DiseaseCPFE: Combined Pulmonary Fibrosis and EmphysemaGER: Gastro-esophageal refluxFVC: forced vital capacityECMO: extracorporeal membrane oxygenationILD: Interstitial Lung DiseaseIPF: Idiopathic Pulmonary FibrosisNAC: N-acetylcysteineLPA: Lysophosphatidic acidPH: Pulmonary RehabilitationPR: Pulmonary rehabilitationRCTs: randomized placebo-controlled trialsUIP: usual interstitial pneumonia.
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Affiliation(s)
- Athina Trachalaki
- Interstitial Lung Disease Unit, Respiratory Department, Royal Brompton Hospital , London, UK
| | - Mujammil Irfan
- Interstitial Lung Disease Unit, Respiratory Department, Royal Brompton Hospital , London, UK
| | - Athol U Wells
- Interstitial Lung Disease Unit, Respiratory Department, Royal Brompton Hospital , London, UK
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Ingredients of Jelly Products Affect Aspiration-Related Pulmonary Inflammation; in an Animal Study. Dysphagia 2020; 36:719-728. [PMID: 32979096 DOI: 10.1007/s00455-020-10192-1] [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: 01/21/2020] [Accepted: 09/21/2020] [Indexed: 10/23/2022]
Abstract
Diet modification is an important intervention in the management of patients with dysphagia. Food entering the airway, same as oral bacterium, causes pulmonary inflammation; therefore, the elucidation of inflammatory responses to different foods is important. This study aimed to investigate the differences in the severity of inflammatory response induced by intratrachial injection of foods with different nutritional components. Two jelly products, the one containing only carbohydrates (KURIN jelly: Isocal Jelly KURIN®) and the other containing carbohydrates, proteins, and lipids (HC jelly: Isocal Jelly HC®), were prepared. These jelly products (dilution with saline, 50% volume/volume) and saline, as control, were intratracheally administered to Sprague-Dawley rats at a dose of 1 ml/kg (KURIN group (n = 15), HC group (n = 15), Saline group (n = 15)). At 1, 2 and 7 days after administration, lungs were harvested and histological analysis was performed. The severity of induced inflammation was evaluated using the Acute Lung Injury (ALI) score with hematoxylin-eosin staining, and the expression of IL-1β, IL-6 and TNF-α, markers of airway inflammation, were observed with immunostaining. The ALI score in the HC jelly group was significantly higher than the KURIN jelly group and the Saline group (P < 0.01) at 1 and 2 days after administration, while the ALI score in the KURIN jelly group was higher than Saline group only at 2 day after administration. Numerous positive cells for IL-1β, IL-6 and TNF-α were observed only in the HC jelly group at 1 and 2 days after administration. There were no significant histological differences between the three groups at 7 days after administration. Our data suggests that the severity of inflammation caused by aspiration differs depending on the ingredients of the foods, and the nutrients contained in foods might be considered in dietary management for the patients with dysphagia.
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Annunziata A, Valente T, Cauteruccio R, Fiorentino G. Silent dysphagia in two patients with Steinert disease and recurrent respiratory exacerbations. ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2020; 39:141-143. [PMID: 33305171 PMCID: PMC7711324 DOI: 10.36185/2532-1900-019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/05/2020] [Indexed: 11/29/2022]
Abstract
We describe two cases of patients with Steinert’s dystrophy or myotonic dystrophy type 1 (DM1) who presented with frequent respiratory exacerbations and pneumonia. They did not report any risk factors for asthma, allergy, bronchopathy or dysphagia in their history. The Videofluoroscopic swallow study test allowed to highlight post-swallowing aspiration phenomena responsible for respiratory exacerbations.
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Affiliation(s)
- Anna Annunziata
- UOC Pathophysiology and Respiratory Rehabilitation, Intensive Care Department, Azienda Ospedaliera dei Colli, Naples, Italy
| | - Tullio Valente
- UOC Radiology, Azienda Ospedaliera dei Colli, Naples, Italy
| | - Rosa Cauteruccio
- UOC Pathophysiology and Respiratory Rehabilitation, Intensive Care Department, Azienda Ospedaliera dei Colli, Naples, Italy
| | - Giuseppe Fiorentino
- UOC Pathophysiology and Respiratory Rehabilitation, Intensive Care Department, Azienda Ospedaliera dei Colli, Naples, Italy
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Stewart JT, Kamath VD, Jaen-Vinuales AV, Sheyner I. Chronic Microaspiration and Frailty: A Geriatric Smoking Gun? Fed Pract 2020; 37:384-387. [PMID: 32908347 PMCID: PMC7473738 DOI: 10.12788/fp.0022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chronic microaspiration and diffuse aspiration bronchiolitis may account for some otherwise unexplained frailty in nursing home patients.
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Affiliation(s)
- Jonathan T Stewart
- is a Staff Geropsychiatrist, V is a Staff Speech and Language Pathologist, is a Staff Geriatrician, and is the Medical Director, Community Living Center, all at the James A. Haley Veterans' Hospital in Tampa, Florida. Jonathan Stewart is a Professor in Psychiatry and Geriatric Medicine, Alejandro Jaen-Vinuales is an Assistant Professor in Geriatric Medicine, and Inna Sheyner is an Associate Professor in Geriatric Medicine, all at the University of South Florida College of Medicine in Tampa
| | - Vandan D Kamath
- is a Staff Geropsychiatrist, V is a Staff Speech and Language Pathologist, is a Staff Geriatrician, and is the Medical Director, Community Living Center, all at the James A. Haley Veterans' Hospital in Tampa, Florida. Jonathan Stewart is a Professor in Psychiatry and Geriatric Medicine, Alejandro Jaen-Vinuales is an Assistant Professor in Geriatric Medicine, and Inna Sheyner is an Associate Professor in Geriatric Medicine, all at the University of South Florida College of Medicine in Tampa
| | - Alejandro V Jaen-Vinuales
- is a Staff Geropsychiatrist, V is a Staff Speech and Language Pathologist, is a Staff Geriatrician, and is the Medical Director, Community Living Center, all at the James A. Haley Veterans' Hospital in Tampa, Florida. Jonathan Stewart is a Professor in Psychiatry and Geriatric Medicine, Alejandro Jaen-Vinuales is an Assistant Professor in Geriatric Medicine, and Inna Sheyner is an Associate Professor in Geriatric Medicine, all at the University of South Florida College of Medicine in Tampa
| | - Inna Sheyner
- is a Staff Geropsychiatrist, V is a Staff Speech and Language Pathologist, is a Staff Geriatrician, and is the Medical Director, Community Living Center, all at the James A. Haley Veterans' Hospital in Tampa, Florida. Jonathan Stewart is a Professor in Psychiatry and Geriatric Medicine, Alejandro Jaen-Vinuales is an Assistant Professor in Geriatric Medicine, and Inna Sheyner is an Associate Professor in Geriatric Medicine, all at the University of South Florida College of Medicine in Tampa
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Heo GJ, Lee J, Choi WS, Hyun SY, Cho JS. Analysis of Aspiration Risk Factors in Severe Trauma Patients: Based on Findings of Aspiration Lung Disease in Chest Computed Tomography. JOURNAL OF TRAUMA AND INJURY 2020. [DOI: 10.20408/jti.2020.0003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Abstract
Bronchiolitis is injury to the bronchioles (small airways with a diameter of 2 mm or less) resulting in inflammation and/or fibrosis. Bronchioles can be involved in pathologic processes that involve predominantly the lung parenchyma or large airways, but, in some diseases, bronchioles are the main site of injury ("primary bronchiolitis"). Acute bronchiolitis caused by viruses is responsible for most cases of bronchiolitis in infants and children. In adults, however, there is a wide spectrum of bronchiolar disorders and most are chronic. Many forms of bronchiolitis have been described in the literature, and the terminology in this regard remains confusing. In clinical practice, a classification scheme based on the underlying histopathologic pattern (correlates with presenting radiologic abnormalities) facilitates the recognition of bronchiolitis and the search for the inciting cause of the lung injury. Respiratory bronchiolitis is the most common form of bronchiolitis in adults and is usually related to cigarette smoking. Currently, the diagnosis of respiratory bronchiolitis is generally achieved based on the clinical context (smoking history) and chest CT findings. Constrictive (obliterative) bronchiolitis is associated with airflow obstruction and is seen in various clinical contexts including environmental/occupational inhalation exposures, transplant recipients (bronchiolitis obliterans syndrome), and many others. Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is increasingly recognized and can be associated with progressive airflow obstruction related to constrictive bronchiolitis ("DIPNECH syndrome"). Diffuse aspiration bronchiolitis is a form of aspiration-related lung disease that is often unsuspected and confused for interstitial lung disease. Novel forms of bronchiolitis have been described, including lymphocytic bronchiolitis and alveolar ductitis with emphysema recently described in employees at a manufacturing facility for industrial machines. Bronchiolitis is also a component of vaping-related lung injury encountered in the recent outbreak.
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Affiliation(s)
- Jay H Ryu
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic in Rochester, Rochester, MN, USA
| | - Natalya Azadeh
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Scottsdale, AZ, USA
| | - Bilal Samhouri
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic in Rochester, Rochester, MN, USA
| | - Eunhee Yi
- Division of Anatomic Pathology, Mayo Clinic in Rochester, Rochester, MN, USA
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Hamao N, Ito I, Konishi S, Tanabe N, Shirata M, Oi I, Tsukino M, Matsumoto H, Yasutomo Y, Kadowaki S, Hirai T. Comparison of ceftriaxone plus macrolide and ampicillin/sulbactam plus macrolide in treatment for patients with community-acquired pneumonia without risk factors for aspiration: an open-label, quasi-randomized, controlled trial. BMC Pulm Med 2020; 20:160. [PMID: 32503515 PMCID: PMC7275365 DOI: 10.1186/s12890-020-01198-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/22/2020] [Indexed: 02/08/2023] Open
Abstract
Background Ceftriaxone (CTRX) and ampicillin/sulbactam (ABPC/SBT) are recommended by various guidelines as the first-line antibiotics for community-acquired pneumonia (CAP). However, which of these antibiotics is more effective for treating non-aspiration CAP remains unclear. Methods This study was a prospective, single-center, open-label, quasi-randomized controlled trial. Patients with adult CAP without risk for aspiration were allocated to either a CTRX or ABPC/SBT group based on the date of hospital admission. Macrolide was added to patients in each group. The primary outcome was the clinical response in the validated per-protocol (VPP) population at end of treatment (EOT). The secondary outcomes were clinical response during treatment and at end of study (EOS) in the VPP population, and mortality rate at day 30 in the modified intention-to-treat (MITT) population. Results Of 696 screened patients, 433 patients were excluded and 263 patients were allocated to receive either of the treatments. Males comprised 54% of patients and mean age and PSI were 62.1 ± 19.8 years and 69.3 ± 30.0, respectively, with 124 patients allocated to the CTRX group and 138 patients allocated to the ABPC/SBT group. The clinical effectiveness rate for the VPP population at EOT was 90% in the CTRX and 96% in the ABPC/SBT group (p = 0.072, 95% confidence interval [CI] of risk difference [RD]: − 12.6–0.8%). No significant difference in effectiveness at day 4 was observed between the CTRX and ABPC/SBT groups (p = 0.079, 95%CI of RD: − 12.1–0.4%), but at day 7, ABPC/SBT was significantly more effective than CTRX in the VPP population (p = 0.047, 95%CI of RD: − 13.3–-0.4%). No significant difference in late response at EOS was seen between CTRX and ABPC/SBT groups: cure (89 [86%] and 102 [94%]), relapse (5 [5%] and 1 [1%]) and failure (10 [10%] and 5 [5%]; p = 0.053). Deaths within 30 days in MITT population was higher in CTRX group (4 [3%]) than in ABPC/SBT group (0 [0%]) (p = 0.048, 95%CI of RD: 0.1–6.3%). Conclusion No significant difference in effectiveness was found between ABPC/SBT and CTRX at EOT. However, ABPC/SBT might be more effective in the early phase of treatment. Trial registration UMIN-CTR, UMIN000037464. Registered 25 July 2019 – Retrospectively registered, https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000042262
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Affiliation(s)
- Nobuyoshi Hamao
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan
| | - Isao Ito
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan. .,Department of Internal Medicine, Ono Municipal Hospital, 323 Naka-cho, Ono, Hyogo, 675-1332, Japan.
| | - Satoshi Konishi
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan.,Department of Internal Medicine, Ono Municipal Hospital, 323 Naka-cho, Ono, Hyogo, 675-1332, Japan
| | - Naoya Tanabe
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan.,Department of Internal Medicine, Ono Municipal Hospital, 323 Naka-cho, Ono, Hyogo, 675-1332, Japan
| | - Masahiro Shirata
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan
| | - Issei Oi
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan
| | - Mitsuhiro Tsukino
- Department of Internal Medicine, Ono Municipal Hospital, 323 Naka-cho, Ono, Hyogo, 675-1332, Japan.,Department of Respiratory Medicine, Hikone Municipal Hospital, 1882 Hassakacho, Hikone, Shiga, 522-8539, Japan
| | - Hisako Matsumoto
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan
| | - Yoshiro Yasutomo
- Department of Internal Medicine, Ono Municipal Hospital, 323 Naka-cho, Ono, Hyogo, 675-1332, Japan
| | - Seizo Kadowaki
- Department of Internal Medicine, Ono Municipal Hospital, 323 Naka-cho, Ono, Hyogo, 675-1332, Japan
| | - Toyohiro Hirai
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawaracho, Sakyo, Kyoto, 606-8507, Japan
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Griffiths TL, Nassar M, Soubani AO. Pulmonary manifestations of gastroesophageal reflux disease. Expert Rev Respir Med 2020; 14:767-775. [PMID: 32308062 DOI: 10.1080/17476348.2020.1758068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Gastroesophageal reflux disease (GERD) is a widespread condition with a significant impact on the quality of life and healthcare resources. In addition to its gastrointestinal problems, GERD has been linked to a variety of respiratory diseases either as a direct cause, or as a risk factor to the inability to control or worsening of the disease. AREAS COVERED We performed a literature search in the PubMed database for articles addressing GERD and pulmonary diseases. This review will discuss several different pulmonary diseases affected by GERD ranging from upper airway including chronic cough, vocal cord dysfunction, lower airway diseases including COPD, asthma, and bronchiolitis obliterans syndrome to parenchymal diseases such as interstitial lung diseases. The review will discuss several different pulmonary manifestations of GERD and their contribution to patient mortality and morbidity. It will also review the mechanisms leading to these diseases, diagnostic workup, and the role of the available treatment options. EXPERT OPINION GERD is often overlooked as a cause of respiratory symptoms and illnesses. The literature is sparse on the relation between GERD and respiratory diseases such as interstitial lung diseases and bronchiolitis obliterans including its role in pathogenesis, mechanisms of lung injury, and whether treatment of GERD is effective in managing such illnesses.
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Affiliation(s)
- Tricia L Griffiths
- Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University School of Medicine , Detroit, MI, USA
| | - Mo'ath Nassar
- Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University School of Medicine , Detroit, MI, USA
| | - Ayman O Soubani
- Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University School of Medicine , Detroit, MI, USA
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Unusual Bronchial Foreign Bodies with Localized Bronchiectasis in Five Children. Case Rep Med 2020; 2019:4143120. [PMID: 32089700 PMCID: PMC7011307 DOI: 10.1155/2019/4143120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 12/06/2019] [Accepted: 12/13/2019] [Indexed: 11/25/2022] Open
Abstract
Obstructive foreign bodies are uncommon causes of bronchiectasis in children, the causal relationship between foreign body aspiration and bronchiectasis remains unclear. We conducted a review of children who were diagnosed with bronchiectasis due to foreign body retention in a university hospital between 2014 and 2019. Five patents were studied (four boys, one girl; age range: 15 months to 13 years old). Computed tomography showed localized cylindrical bronchiectasis in all five patients. After removal of the foreign body by bronchoscopy, the prognoses were good. Patients with localized cylindrical bronchiectasis should be examined to exclude foreign body. As long as foreign body aspiration is diagnosed early and appropriately removed, the possibility of a lobectomy or even mortality is greatly reduced.
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The assessment of the peak of reflex cough in subjects with acquired brain injury and tracheostomy and healthy controls. Respir Physiol Neurobiol 2020; 274:103356. [PMID: 31899352 DOI: 10.1016/j.resp.2019.103356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 11/26/2019] [Accepted: 12/02/2019] [Indexed: 11/22/2022]
Abstract
INTRODUCTION There is no standard procedure to evaluated the peak of reflex cough flow (PCF-reflex) in the literature, which is important assessment in subjects with acquired brain injury and tracheostomy cannula. The present study aims to investigate the PCF of the reflex cough in a broad sample of healthy controls and, furthermore, the presence and the strength of voluntary and reflex cough in subjects with ABI with tracheostomy cannula. MATERIALS AND METHODS We recruited 147 participants including the healthy subjects (n = 105) and acquired brain injury subjects (n = 43), who underwent respiratory assessment: the Tidal Volume, Forced Vital Capacity, PCF of voluntary cough (PCF-voluntary) and PCF-reflex (using a spirometer connected with a nebulizer by a bidirectional). RESULTS The PCF-reflex of controls and subjects was significant lower than the PCF-voluntary (P < 0.01). The PCF-voluntary was not assessed in 26 (60.5 %) subjects due to severe cognitive deficit. In subjects without cognitive deficits (n = 17; 39.5 %), it was significantly lower than in healthy controls (p < 0.01). In contrast, the PCF-reflex was completed in all subjects and it was not significantly different from healthy controls. Furthermore, the strength of the PCF-reflex decreased with increasing inhalation numbers of nebulised air. CONCLUSION Reflex cough behaviour differs largely from voluntary cough and the PCF results reflect this great discrepancy. PCF-reflex could be useful parameter for assessing the airway protection whereas PCF-voluntary for measuring airway clearance.
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The Infections Causing Acute Respiratory Failure in Elderly Patients. VENTILATORY SUPPORT AND OXYGEN THERAPY IN ELDER, PALLIATIVE AND END-OF-LIFE CARE PATIENTS 2020. [PMCID: PMC7122443 DOI: 10.1007/978-3-030-26664-6_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The immune system of older individuals declines with advancing age (“immunosenescence”) increasing susceptibility to infection, as well as to an increased risk of a worse outcome. Severe community-acquired pneumonia and acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are causes of acute respiratory failure (ARF) in elderly patients. Non-invasive mechanical ventilation (NIV) is effective in the treatment of patients with ARF, above all in case of AECOPD.
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Yamaya M, Kawakami G, Momma H, Yamada A, Itoh J, Ichinose M. Effects of Nutritional Treatment on the Frequency of Pneumonia in Bedridden Patients Receiving Oral Care. Intern Med 2020; 59:181-192. [PMID: 31941868 PMCID: PMC7008047 DOI: 10.2169/internalmedicine.2966-19] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Objective Pneumonia develops in bedridden patients, even in those receiving oral care, and malnutrition is associated with the development of pneumonia. We examined the effects of nutritional treatment on the prevention of pneumonia. Patients and Methods We retrospectively examined the effects of nutritional treatment on the prevention of pneumonia by analyzing the records of bedridden patients (n=68; mean age: 68.0 years) who stayed in a hospital for 2 years or longer. Results Among the analyzed patients, pneumonia developed in 52 (76%) patients, and the mean frequency of pneumonia was 1.6 times per year during the first year of stay. In a multivariate analysis, the serum albumin level at admission in the pneumonia group was lower than that in the non-pneumonia group. The frequency of pneumonia during the second year of stay was lower than that during the first year of stay. Serum levels of albumin and total protein (TP) at one year after admission were higher than those at admission in all analyzed patients, and in all patients (n=52) and elderly (≥65 years) patients (n=31) in the pneumonia group. The proportions of patients with hypoalbuminemia (<3.5 g/dL) and hypoproteinemia (<6.5 g/dL) at one year after admission were lower than those at admission. The increases in the proportions of patients presenting a reduced frequency of pneumonia were correlated with increases in the proportions of patients presenting increased levels of albumin and/or TP. Conclusion Nutritional treatment may reduce the frequency of pneumonia by improving malnutrition in bedridden patients receiving oral care.
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Affiliation(s)
- Mutsuo Yamaya
- Department of Advanced Preventive Medicine for Infectious Disease, Tohoku University Graduate School of Medicine, Japan
| | - Genichiro Kawakami
- Department of Internal Medicine, National Hospital Organization, Hachinohe National Hospital, Japan
| | - Haruki Momma
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine, Japan
| | - Aya Yamada
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine, Japan
| | - Jun Itoh
- Department of Internal Medicine, National Hospital Organization, Hachinohe National Hospital, Japan
| | - Masakazu Ichinose
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Japan
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The effects of oral feeding while on nasal continuous positive airway pressure (NCPAP) in preterm infants. J Perinatol 2020; 40:909-915. [PMID: 32086439 PMCID: PMC7224016 DOI: 10.1038/s41372-020-0632-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/30/2020] [Accepted: 02/11/2020] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To determine whether delaying oral feeding until coming off NCPAP will alter feeding and respiratory-related morbidities in preterm infants. DESIGN In this retrospective pre-post analysis, outcomes were compared in two preterm infant groups (≤32 weeks gestation). Infants in Group 1 were orally fed while on NCPAP, while infants in Group 2 were only allowed oral feedings after ceasing NCPAP. RESULTS Although infants in Group 2 started feeds at a later postmenstrual age (PMA), they reached full oral feeding at a similar PMA compared with Group 1. Interestingly, there was a positive correlation between the duration of oral feeding while on NCPAP and the time spent on respiratory support in Group 1. CONCLUSIONS Delayed oral feeding until ceasing NCPAP did not contribute to feeding-related morbidities. We recommend caution when initiating oral feedings in preterm infants on NCPAP without evaluating the safety of the infants and their readiness for oral feedings.
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Rodriguez AE, Restrepo MI. New perspectives in aspiration community acquired Pneumonia. Expert Rev Clin Pharmacol 2019; 12:991-1002. [PMID: 31516051 DOI: 10.1080/17512433.2019.1663730] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Aspiration pneumonia is a subclass of community-acquired pneumonia that is expected to have an increasing contribution in mortality and morbidity, particularly in the elderly population over the next coming decades. While studies have revealed significant progress in identifying risk factors for aspiration pneumonia, the clinical presentation and diagnosis remain challenging to healthcare providers. Areas covered: We conducted a broad literature review using the MeSH heading in PubMed/MEDLINE of 'aspiration pneumonia' from January 1970 to July 2019. The understanding of the microbiology of aspiration pneumonia has evolved from a possible shift in the causative organisms away from anaerobes to traditional community-acquired pneumonia organisms. The importance of this shift is not yet known, but it has questioned the pathogenic role of anaerobes, appropriate anaerobic testing and the role of these pathogens in the pulmonary microbiome in patients with pneumonia. The identification of risk factors led to strategies to prevent or minimize the risk of aspiration pneumonia with moderate success. Expert opinion: Our expert opinion is that further research is needed to determine the role of the microbiome with aspiration pneumonia and patient risk factors. There is also a great need to develop clinical tools to help providers diagnose, treat, and prevent aspiration pneumonia.
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Affiliation(s)
- Abraham E Rodriguez
- Division of Pulmonary Diseases & Critical Care Medicine, University of Texas Health , San Antonio , TX , USA.,Division of Pulmonary Diseases & Critical Care Medicine, South Texas Veterans Health Care System , San Antonio , TX , USA
| | - Marcos I Restrepo
- Division of Pulmonary Diseases & Critical Care Medicine, University of Texas Health , San Antonio , TX , USA.,Division of Pulmonary Diseases & Critical Care Medicine, South Texas Veterans Health Care System , San Antonio , TX , USA
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Ryu AJ, Navin PJ, Hu X, Yi ES, Hartman TE, Ryu JH. Clinico-radiologic Features of Lung Disease Associated With Aspiration Identified on Lung Biopsy. Chest 2019; 156:1160-1166. [PMID: 31398348 DOI: 10.1016/j.chest.2019.07.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 06/10/2019] [Accepted: 07/20/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Aspiration-related lung diseases are commonly diagnosed presumptively based on the clinical context and radiologic findings. Limited data exist on the spectrum of clinico-radiologic presentations associated with aspiration. METHODS This study reviewed all cases of aspiration identified on lung biopsy encountered at the Mayo Clinic between 2003 and 2017. Demographic and clinical features, including risk factors for aspiration, diagnoses suspected prior to biopsy, imaging findings, and microbiologic data, were analyzed. RESULTS A total of 52 consecutive adult cases of aspiration identified on lung biopsy (histologic presence of food or other particulate matter) were included; patients' median age was 59 years (range, 22 to 79 years), 38% were women, and there were five lung transplant recipients. Of these, 63% were diagnosed according to results of surgical biopsy (including four cases of lobectomy) and 37% according to results of transbronchial biopsy. Aspiration was clinically suspected prior to biopsy in 35% of the subjects. Ninety percent of subjects had at least one identifiable risk factor for aspiration; gastroesophageal reflux disease was the most common (62%), followed by a structurally abnormal esophagogastric tract and the use of consciousness-impairing medications. Only 27% of patients reported dysphagia or choking. Chest CT imaging revealed a variety of parenchymal patterns, including bronchiolitis (42%), patchy consolidation (19%), and mass (15%). Of 25 patients undergoing a video-swallow evaluation, 14 (56%) had abnormal results with laryngeal penetration with or without aspiration. Microbial cultures obtained in 21 lung biopsy specimens yielded no pathogens. CONCLUSIONS Aspiration can occur in the absence of subjective or demonstrable swallowing difficulties and manifest a broad spectrum of clinico-radiologic presentations.
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Affiliation(s)
- Alexander J Ryu
- Mayo Clinic School of Graduate Medical Education, Rochester, MN
| | | | - Xiaowen Hu
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Eunhee S Yi
- Division of Anatomic Pathology, Mayo Clinic, Rochester, MN
| | | | - Jay H Ryu
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN.
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Abstract
Dysphagia and vocal cord dysfunction are frequent complications after congenital heart surgery. Both are risk factors for aspiration, which can lead to pneumonia, progressive lung disease, and respiratory arrest. A protocol was implemented to promote early detection of aspiration in a high-risk cohort of patients. Retrospective data were collected on all patients under 120 days old who underwent the Norwood procedure, aortic arch repair, Blalock-Taussig shunt placement, or cervical cannulation for extracorporeal membrane oxygenation from 10/2012 to 05/2016 at a single institution. Patients underwent an assessment of symptoms, fiberoptic endoscopic evaluation of swallowing (FEES), and modified barium swallow (MBS) study in the postoperative period prior to initiating oral feeds. Patients with and without aspiration were compared. Of the 96 patients included in the study, one-third (33%) of patients had evidence of vocal cord dysfunction by FEES and just over half (51%) had evidence of aspiration by FEES or MBS. Most (73%) of the patients with aspiration were asymptomatic and a majority (53%) of patients with aspiration had normal vocal cord function. Aspiration is common after congenital heart surgery, and an assessment of vocal cord or swallow function in isolation may lead to underdiagnosis. A comprehensive protocol including MBS and FEES is necessary for the early detection of vocal cord dysfunction and aspiration and may prevent adverse outcomes in high-risk postoperative patients.
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Guenthart BA, O'Neill JD, Kim J, Queen D, Chicotka S, Fung K, Simpson M, Donocoff R, Salna M, Marboe CC, Cunningham K, Halligan SP, Wobma HM, Hozain AE, Romanov A, Vunjak-Novakovic G, Bacchetta M. Regeneration of severely damaged lungs using an interventional cross-circulation platform. Nat Commun 2019; 10:1985. [PMID: 31064987 PMCID: PMC6504972 DOI: 10.1038/s41467-019-09908-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 04/01/2019] [Indexed: 12/13/2022] Open
Abstract
The number of available donor organs limits lung transplantation, the only lifesaving therapy for the increasing population of patients with end-stage lung disease. A prevalent etiology of injury that renders lungs unacceptable for transplantation is gastric aspiration, a deleterious insult to the pulmonary epithelium. Currently, severely damaged donor lungs cannot be salvaged with existing devices or methods. Here we report the regeneration of severely damaged lungs repaired to meet transplantation criteria by utilizing an interventional cross-circulation platform in a clinically relevant swine model of gastric aspiration injury. Enabled by cross-circulation with a living swine, prolonged extracorporeal support of damaged lungs results in significant improvements in lung function, cellular regeneration, and the development of diagnostic tools for non-invasive organ evaluation and repair. We therefore propose that the use of an interventional cross-circulation platform could enable recovery of otherwise unsalvageable lungs and thus expand the donor organ pool.
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Affiliation(s)
- Brandon A Guenthart
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA.,Department of Surgery, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - John D O'Neill
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Jinho Kim
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA.,Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Dawn Queen
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Scott Chicotka
- Department of Surgery, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Kenmond Fung
- Department of Clinical Perfusion, Columbia University Medical Center, Columbia University, New York, NY, 1003, USA
| | - Michael Simpson
- Department of Surgery, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Rachel Donocoff
- Institute of Comparative Medicine, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Michael Salna
- Department of Surgery, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Charles C Marboe
- Department of Pathology and Cell Biology, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Katherine Cunningham
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Susan P Halligan
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Holly M Wobma
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Ahmed E Hozain
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA.,Department of Surgery, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Alexander Romanov
- Institute of Comparative Medicine, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA. .,Department of Medicine, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA.
| | - Matthew Bacchetta
- Department of Biomedical Engineering, Columbia University Medical Center, Columbia University, New York, NY, 10032, USA. .,Department of Thoracic and Cardiovascular Surgery, Vanderbilt University, Nashville, TN, 37232, USA.
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Akbarpour M, Bharat A. Lung Injury and Loss of Regulatory T Cells Primes for Lung-Restricted Autoimmunity. Crit Rev Immunol 2019; 37:23-37. [PMID: 29431077 DOI: 10.1615/critrevimmunol.2017024944] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lung transplantation is a life-saving therapy for several end-stage lung diseases. However, lung allografts suffer from the lowest survival rate predominantly due to rejection. The pathogenesis of alloimmunity and its role in allograft rejection has been extensively studied and multiple approaches have been described to induce tolerance. However, in the context of lung transplantation, dysregulation of mechanisms, which maintain tolerance against self-antigens, can lead to lung-restricted autoimmunity, which has been recently identified to drive the immunopathogenesis of allograft rejection. Indeed, both preexisting as well as de novo lung-restricted autoimmunity can play a major role in the development of lung allograft rejection. The three most widely studied lung-restricted self-antigens include collagen type I, collagen type V, and k-alpha 1 tubulin. In this review, we discuss the role of lung-restricted autoimmunity in the development of both early as well as late lung allograft rejection and recent literature providing insight into the development of lung-restricted autoimmunity through the dysfunction of immune mechanisms which maintain peripheral tolerance.
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Affiliation(s)
- Mahzad Akbarpour
- Division of Thoracic Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Ankit Bharat
- Division of Thoracic Surgery, Department of Surgery; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Igarashi Y, Norii T, Sung-Ho K, Nagata S, Tagami T, Femling J, Mizushima Y, Yokota H. New classifications for Life-threatening foreign body airway obstruction. Am J Emerg Med 2019; 37:2177-2181. [PMID: 30880041 DOI: 10.1016/j.ajem.2019.03.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/27/2019] [Accepted: 03/09/2019] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Foreign body airway obstruction (FBAO) is a common medical emergency; however, few studies of life-threatening FBAO have been reported and no standard classification system is available. METHODS We retrospectively evaluated patients who presented to the emergency departments of two hospitals and were diagnosed with FBAO. The primary outcome was cerebral performance category (CPC) score at discharge. To establish a new classification system for FBAO, FBAO was classified into three types based on the anatomical and physiological characteristics of the obstructed airway. RESULTS A total of 137 patients were enrolled. Median age was 79.0 years. The most common cause of FBAO was meat, followed by bread, rice cake, and rice. Of all patients, 65.7% suffered cardiac arrest and 51.1% died. In contrast, 28.5% had favorable neurological outcomes, defined as CPC 1 and 2. Upper airway obstruction (type 1) was the most common (type 1, 78.1%), while trachea and/or bilateral main bronchus obstruction (type 2, 12.4%) showed significantly higher mortality than type 1 obstruction (82.4% vs 47.7%, P = 0.0078). Patients with unilateral bronchus and/or distal bronchus obstruction (type 3, 9.5%) were significantly more likely to consume a dysphagia diet than type 1 patients (23.1% vs 0%, P < 0.0001). CONCLUSION The majority of patients with life-threatening FBAO were elderly and had poor neurological outcomes. Our new classification system divides FBAO into three types, and revealed that mortality was significantly higher with type 2 than type 1 obstruction. This classification system may improve the management of patients with FBAO and assessment of patient outcomes.
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Affiliation(s)
- Yutaka Igarashi
- Department of Emergency and Critical Care Medicine, Nippon Medical School Hospital, Tokyo, Japan.
| | - Tatsuya Norii
- Department of Emergency Medicine, University of New Mexico, Albuquerque, USA
| | - Kim Sung-Ho
- Department of Critical Care Medicine, Osaka Habikino Medical Center, Osaka, Japan
| | - Shimpei Nagata
- Department of Emergency Medicine, Osaka Police Hospital, Osaka, Japan
| | - Takashi Tagami
- Health Services and Systems Research, Duke-NUS Medical School, Singapore; Department of Emergency and Critical Care Medicine, Nippon Medical School Tama Nagayama Hospital, Tokyo, Japan
| | - Jon Femling
- Department of Emergency Medicine, University of New Mexico, Albuquerque, USA
| | - Yasuaki Mizushima
- Department of Emergency Medicine, Osaka Police Hospital, Osaka, Japan
| | - Hiroyuki Yokota
- Department of Emergency and Critical Care Medicine, Nippon Medical School Hospital, Tokyo, Japan
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