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etiology for copd

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https://www.readbyqxmd.com/read/29123934/symptomatic-patent-foramen-ovale-with-hemidiaphragm-paralysis
#1
Hussain Ibrahim, Adnan Khan, Shawn P Nishi, Ken Fujise, Syed Gilani
Dyspnea accounts for more than one-fourth of the hospital admissions from Emergency Department. Chronic conditions such as Chronic Obstructive Pulmonary Disease, Congestive Heart Failure, and Asthma are being common etiologies. Less common etiologies include conditions such as valvular heart disease, pulmonary embolism, and right-to-left shunt (RLS) from patent foramen ovale (PFO). PFO is present in estimated 20-30% of the population, mostly a benign condition. RLS via PFO usually occurs when right atrium pressure exceeds left atrium pressure...
2017: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/29101558/perioperative-bleeding-and-blood-transfusion-are-major-risk-factors-for-venous-thromboembolism-following-bariatric-surgery
#2
Alexander W Nielsen, Melissa C Helm, Tammy Kindel, Rana Higgins, Kathleen Lak, Zachary M Helmen, Jon C Gould
BACKGROUND: Morbidly obese patients are at increased risk for venous thromboembolism (VTE) after bariatric surgery. Perioperative chemoprophylaxis is used routinely with bariatric surgery to decrease the risk of VTE. When bleeding occurs, routine chemoprophylaxis is often withheld due to concerns about inciting another bleeding event. We sought to evaluate the relationship between perioperative bleeding and postoperative VTE in bariatric surgery. METHODS: The American College of Surgeons-National Surgical Quality Improvement Program (NSQIP) dataset between 2012 and 2014 was queried to identify patients who underwent bariatric surgery...
November 3, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29100417/inhibition-of-endoplasmic-reticulum-stress-alleviates-cigarette-smoke-induced-airway-inflammation-and-emphysema
#3
Yong Wang, Zhen-Zhen Wu, Wei Wang
Chronic bronchitis and emphysema are pathologic features of chronic obstructive pulmonary disease (COPD). Cigarette smoke (CS)-induced endoplasmic reticulum (ER) stress has been implicated in the COPD development, but the molecular mechanism by which it contributes to COPD etiology and the specific role it plays in COPD pathogenesis remain poorly understood. Here, we aimed to determine the role of ER stress in the pathogenesis of CS-induced airway inflammation and emphysema. Exposure to CS significantly increased the expression of ER stress markers in Beas-2B cells and in mouse lungs, possibly through the production of oxidative stress...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29094873/chronic-cough-evaluation-and-management
#4
Charlie Michaudet, John Malaty
Although chronic cough in adults (cough lasting longer than eight weeks) can be caused by many etiologies, four conditions account for most cases: upper airway cough syndrome, gastroesophageal reflux disease/laryngopharyngeal reflux disease, asthma, and nonasthmatic eosinophilic bronchitis. Patients should be evaluated clinically (with spirometry, if indicated), and empiric treatment should be initiated. Other potential causes include angiotensin-converting enzyme inhibitor use, environmental triggers, tobacco use, chronic obstructive pulmonary disease, and obstructive sleep apnea...
November 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/29080708/classification-of-cough-as-a-symptom-in-adults-and-management-algorithms-chest-guideline-and-expert-panel-report
#5
Richard S Irwin, Cynthia L French, Anne B Chang, Kenneth W Altman
BACKGROUND: We performed systematic reviews using the population, intervention, comparison, outcome (PICO) format to answer the following key clinical question: Are the CHEST 2006 classifications of acute, subacute and chronic cough and associated management algorithms in adults that were based on durations of cough useful? METHODS: We used the CHEST Expert Cough Panel's protocol for the systematic reviews and the American College of Chest Physicians (CHEST) methodological guidelines and Grading of Recommendations Assessment, Development, and Evaluation framework...
November 9, 2017: Chest
https://www.readbyqxmd.com/read/29059250/causative-species-of-nontuberculous-mycobacterial-lung-disease-and-comparative-investigation-on-clinical-features-of-mycobacterium-abscessus-complex-disease-a-retrospective-analysis-for-two-major-hospitals-in-a-subtropical-region-of-japan
#6
COMPARATIVE STUDY
Hiroaki Nagano, Takeshi Kinjo, Yuichiro Nei, Shin Yamashiro, Jiro Fujita, Tomoo Kishaba
Nontuberculous mycobacteria (NTM) lung disease is increasing globally. Although the etiological epidemiology of NTM is different across regions, Mycobacterium avium complex (MAC) is the leading cause of NTM lung disease in most countries, including mainland Japan. Okinawa is located in the southernmost region of Japan and is the only prefecture categorized as a subtropical region in Japan, it is therefore likely the etiological epidemiology of NTM lung disease is different from mainland Japan. From 2009 to 2015, the medical records of patients, with respiratory specimens positive for NTMs, visiting or admitted to two Okinawan hospitals, were retrospectively analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/29054824/4-hydroxycinnamic-acid-protects-mice-from-cigarette-smoke-induced-pulmonary-inflammation-via-mapk-pathways
#7
Sung-Hyeuk Park, Je-Won Ko, Na-Rae Shin, Dong-Ho Shin, Young-Kwon Cho, Chang-Seob Seo, Jong-Choon Kim, Joong-Sun Kim, In-Sik Shin
Cigarette smoke (CS) is the main etiological cause of chronic obstructive pulmonary disease, the prevalence of which has continuously increased in recent years. 4-Hydroxycinnamic acid (HA) is a plant phenolic acid that has anti-inflammatory activities. In this study, we explored the therapeutic effects of HA on airway inflammation caused by CS and lipopolysaccharide (LPS) in mice. The animals received 1 h of CS exposure for 7 days and intranasal instillation of LPS on day 4. HA (10 and 20 mg/kg) was administered to animals via oral gavage 1 h before CS exposure...
October 18, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29049933/systemic-autoimmune-diseases-are-associated-with-an-increased-risk-of-bipolar-disorder-a-nationwide-population-based-cohort-study
#8
Ling-Yi Wang, Jen-Huai Chiang, Shih-Fen Chen, Yu-Chih Shen
BACKGROUND: Studies suggested autoimmunity plays a role in the etiology of bipolar disorder (BD). This study aimed to investigate the association between systemic autoimmune diseases (SADs) and the subsequent development of BD, and examine the potential risk factors for developing BD. METHODS: Patients with SADs were identified in the Taiwan National Health Insurance Program (NHIP). A comparison cohort was created by matching patients without SADs with age. The SADs cohort consisted of 65,498 while the comparison cohort consisted of 261,992 patients...
October 7, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29036955/-comparision-of-risk-factors-and-pathogens-in-patients-with-early-and-late-onset-ventilator-associated-pneumonia-in-intensive-care-unit
#9
Y J Liang, Z L Li, L Wang, B Y Liu, R Y Ding, X C Ma
Objective: To compare risk factors and bacterial etiology in patients with early-onset versus late-onset ventilator-associated pneumonia (VAP) in intensive care unit (ICU). Methods: This prospective cohort study enrolled mechanically ventilated patients hospitalized for more than 48 hours in the first affiliated hospital, China Medical University from Jan 2012 to Jun 2016. Subjects were classified by ventilator status: early-onset VAP (< 5 d ventilation, E-VAP) or late-onset VAP (≥ 5 d ventilation, L-VAP)...
October 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28953449/hepatitis-c-virus-associated-extrahepatic-manifestations-in-lung-and-heart-and-antiviral-therapy-related-cardiopulmonary-toxicity
#10
Syeda Zainab Ilyas, Rabia Tabassum, Haroon Hamed, Shafiq Ur Rehman, Ishtiaq Qadri
Besides liver cirrhosis and hepatocellular carcinoma, chronic hepatitis C virus (HCV) infection is associated with many extrahepatic manifestations (EHMs). HCV exhibits lymphotropism that is responsible for various EHM. An important characteristic of HCV is escape from the immune system, which enables it to produce chronic infections and autoimmune disorders along with accumulation of circulating immune complexes. These EHMs have large spectrum, because they affect many organs such as heart, lungs, kidney, brain, thyroid, and skin...
November 2017: Viral Immunology
https://www.readbyqxmd.com/read/28932559/pupillary-abnormalities-in-non-selected-critically-ill-patients-an-observational-study
#11
Philippe Portran, Martin Cour, Romain Hernu, Sylvie de la Salle, Laurent Argaud
BACKGROUND: Repeated pupillary examination is a key element of neurologic surveillance in intensive care units (ICU). However, in non-selected critically ill patients, the clinical interest of monitoring pupillary diameter and light reflex is poorly documented. We aimed to determine the prevalence and the etiologies of pupillary abnormalities (PAs) in this ICU patient population. METHODS: We performed a prospective, observational study in a medical university affiliated ICU over a 6-month period...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28872147/generation-of-a-chronic-obstructive-pulmonary-disease-model-in-mice-by-repeated-ozone-exposure
#12
Zhongwei Sun, Feng Li, Xin Zhou, Wen Wang
Chronic obstructive pulmonary disease (COPD) is characterized by persistent airflow limitation and lung parenchymal destruction. It has a very high incidence in aging populations. The current conventional therapies for COPD focus mainly on symptom-modifying drugs; thus, the development of new therapies is urgently needed. Qualified animal models of COPD could help to characterize the underlying mechanisms and can be used for new drug screening. Current COPD models, such as lipopolysaccharide (LPS) or the porcine pancreatic elastase (PPE)-induced emphysema model, generate COPD-like lesions in the lungs and airways but do not otherwise resemble the pathogenesis of human COPD...
August 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28862879/chronic-obstructive-pulmonary-disease-in-hispanics-a-9-year-update
#13
Alejandro Díaz, Bartolomé Celli, Juan C Celedón
Hispanics are the largest minority in the U.S., now encompassing 56.6 million people. A Hispanic or Latino is an individual whose ancestry can be traced to Spain or territories previously under Spanish control. The Hispanic population in the U.S. and Latin America is very diverse for country of origin, nativity, and racial ancestry. Over the last nine years, our knowledge of COPD in Hispanics has improved, due to a better understanding of differences in COPD burden and risk factors across Hispanic subgroups, development of subgroup-specific spirometry reference equations, genetic studies, and better knowledge of barriers and needs in the diagnosis and management of COPD in the Hispanic population...
September 1, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28860884/chronic-obstructive-pulmonary-disease-in-patients-with-lung-cancer-prevalence-impact-and-management-challenges
#14
REVIEW
Dionisios Spyratos, Eleni Papadaki, Sofia Lampaki, Theodoros Kontakiotis
Chronic obstructive pulmonary disease (COPD) and lung cancer share a common etiological factor (cigarette smoking) and usually coexist in everyday clinical practice. The prevalence of COPD among newly diagnosed patients with lung cancer sometimes exceeds 50%. COPD is an independent risk factor (2-4 times higher than non-COPD subjects) for lung cancer development. The presence of emphysema in addition to other factors (e.g., smoking history, age) could be incorporated into risk scores in order to define the most appropriate target group for lung cancer screening using low-dose computed tomography...
2017: Lung Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28748892/clinical-profile-of-geriatric-acute-kidney-injury-in-a-tertiary-care-center-from-south-india
#15
Eshwarappa Mahesh, Praveen Nallamuthu, Mahesh Kumar, Parampalli Rakesh Madhyastha, Gurudev Konanna
The incidence of acute kidney injury (AKI) is high in the elderly, who comprise an ever-growing segment of the population. Elderly patients pose a different set of diagnostic and therapeutic challenge owing to their associated comorbidities. AKI in the elderly is associated with an increased risk of mortality, morbidity, prolonged length of stay, and progression to chronic kidney disease. Data regarding the clinical profile of AKI in the elderly from the South Indian population are limited. Hence, we present this analysis of the etiological and prognostic factors associated with AKI in elderly population from South India...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28702260/renin-angiotensin-system-modifying-therapies-are-associated-with-improved-pulmonary-health
#16
Maira Soto, Soo I Bang, Jeff McCombs, Kathleen E Rodgers
BACKGROUND: Pulmonary diseases are often complicated and have diverse etiologies. One common factor is the lack of therapeutics available for these diseases. The goal of this study was to investigate the impact of Renin-Angiotensin System (RAS)-modifying medications on incidence and time to pulmonary complications. METHODS: A retrospective analysis was conducted using claims data from a US commercial insurance company (2007-2013). The study consisted of patients with an emerging hypertension (HTN) diagnosis...
2017: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/28664714/analysis-of-acinetobacter-baumannii-resistance-patterns-in-patients-with-chronic-obstructive-pulmonary-disease-copd-in-terms-of-choice-of-effective-empiric-antibiotic-therapy
#17
Aneta Grochowalska, Maria Kozioł-Montewka, Anna Sobieszczańska
<b>Introduction.</b> Multi-resistant Acinetobacter baumannii isolated from patients has become one of the most hazardous pathogens in health care settings. The aim of the study was to analyze pneumonia caused by Acinetobacter baumannii in patients hospitalized because of exacerbation of chronic obstructive pulmonary diseases (COPD), who were admitted to the Pulmonology Ward of the Masovian Specialistic Hospital in Radom (MSS). The incidence and drug sensitivity of these non-fermenting rods were evaluated, and compliance with antimicrobial procedure with the algorithm of the guidelines in applicable recommendations, was estimated...
June 12, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28558837/long-term-clinical-outcomes-following-treatment-with-alpha-1-proteinase-inhibitor-for-copd-associated-with-alpha-1-antitrypsin-deficiency-a-look-at-the-evidence
#18
REVIEW
Franck F Rahaghi, Marc Miravitlles
Alpha-1 antitrypsin deficiency (AATD) is a common hereditary disorder caused by mutations in the SERPINA1 gene, which encodes alpha-1 antitrypsin (AAT; also known as alpha 1-proteinase inhibitor, A1-PI). An important function of A1-PI in the lung is to inhibit neutrophil elastase, one of various proteolytic enzymes released by activated neutrophils during inflammation. Absence or deficiency of A1-PI leads to an imbalance between elastase and anti-elastase activity, which results in progressive, irreversible destruction of lung tissue, and ultimately the development of chronic obstructive pulmonary disease with early-onset emphysema...
May 30, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28479167/trajectory-of-congestion-metrics-by-ejection-fraction-in%C3%A2-patients-with-acute-heart-failure-from-the-heart-failure%C3%A2-network
#19
MULTICENTER STUDY
Andrew P Ambrosy, Ankeet S Bhatt, Dianne Gallup, Kevin J Anstrom, Javed Butler, Adam D DeVore, G Michael Felker, Marat Fudim, Stephen J Greene, Adrian F Hernandez, Jacob P Kelly, Marc D Samsky, Robert J Mentz
Differences in the clinical course of congestion by underlying ejection fraction (EF) have not been well-characterized in acute heart failure (AHF). A post hoc analysis was performed using pooled data from the Diuretic Optimization Strategies Evaluation in Acute Heart Failure, Cardiorenal Rescue Study in Acute Decompensated Heart Failure, and Renal Optimization Strategies Evaluation in Acute Heart Failure trials. All patients were admitted for a primary diagnosis of AHF. Patients were grouped as reduced EF ≤40%, borderline 40% < EF < 50%, or preserved EF ≥50%...
July 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28431934/etiological-analysis-and-epidemiological-comparison-among-adult-cap-and-nhcap-patients-in-okinawa-japan
#20
Gretchen Parrott, Daijiro Nebeya, Takeshi Kinjo, Kazuya Miyagi, Shusaku Haranaga, Futoshi Higa, Masao Tateyama, Jiro Fujita
BACKGROUND: Etiological epidemiology and diagnosis are important issues for CAP and NHCAP. Despite the availability of effective therapies, significant morbidity and mortality ensues. METHODS: We retrospectively analyzed the etiology of 200 pneumonia patients at the University of the Ryukyus Hospital. Patients were categorized into CAP (n = 97) or NHCAP (n = 103), according to the Japanese Respiratory Society guidelines. Diagnoses were made using clinical tests including, Gram stain, bacterial culture, serum and urinary tests...
April 18, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
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