Pulmonology Commons^™

Bronchoscopic Management Of Prolonged Air Leak, S Keshishyan, A Revelo, Oleg Epelbaum

NYMC Faculty Publications

Bronchopleural fistula (BPF) with prolonged air leak (PAL) is most often, though not always, a sequela of lung resection. When this complication occurs post-operatively, it is associated with substantial morbidity and mortality. Surgical closure of the defect is considered the definitive approach to controlling the source of the leak, but many patients with this condition are suboptimal operative candidates. Therefore there has been active interest for decades in the development of effective endoscopic management options. Successful use of numerous bronchoscopic techniques has been reported in the literature largely in the form of retrospective series and, at best, small prospective trials. …

Pneumonia Due To A Rare Pathogen: Achromobacter Xylosoxidans, Subspecies Denitrificans, Hesham Awadh, Munthir Mansour, Obadah Aqtash, Yousef Shweihat

Internal Medicine

Achromobacter xylosoxidans, subspecies denitrificans, is a gram-negative rod recently implicated as an emerging cause of infection in both immunosuppressed and immunocompetent populations. Few cases are reported in literature involvingmultiple body systems. Diagnosis depends on cultures of appropriate specimens, and management usually is by administration of appropriate antibiotics(usually agents with antipseudomonal activity).We report a rare case of pneumonia due to infection with this organism, in a patient with preexisting bronchiectasis secondary to chronic aspiration.

Emergence Of Fluoroquinolone Resistance Among Drug Resistant Tuberculosis Patients At A Tertiary Care Facility In Karachi, Pakistan, Syed Mohammad Asad Zaidi, Abdul Haseeb, Shifa Salman Habib, Amyn Malik, Saira Khowaja, Nausheen Saifullah, Nadeem Rizvi

Community Health Sciences

Background: Pakistan is classified as one of the high multi-drug resistant tuberculosis (MDR-TB) burden countries. A poorly regulated private sector, over-prescription of antibiotics and self-medication has led to augmented rates of drug-resistance in the country. Pakistan's first national anti-tuberculosis drug resistance survey identified high prevalence of fluoroquinolone resistance among MDR-TB patients. Further institutional evidence of fluoroquinolone drug-resistance can support re-evaluation of treatment regimens as well as invigorate efforts to control antibiotic resistance in the country.
Findings: In this study, data for drug-susceptibility testing (DST) was retrospectively analyzed for a total of 133 patients receiving MDR-TB treatment at the Chest Department …

Measuring The Energy Of Ventilation And Circulation During Human Walking Using Induced Hypoxia, Masahiro Horiuchi, Yoshiyuki Fukuoka, Yoko Handa, Daijiro Abe, Herman Pontzer

Publications and Research

Energy expenditure (EE) during walking includes energy costs to move and support the body and for respiration and circulation. We measured EE during walking under three different oxygen concentrations. Eleven healthy, young, male lowlanders walked on a treadmill at seven gait speeds (0.67–1.83 m s−1) on a level gradient under normobaric normoxia (room air, 21% O2), moderate hypoxia (15% O2), and severe hypoxia (11% O2). By comparing the hypoxia-induced elevation in heart rate (HR [bpm]), ventilation (VE [L min−1]) with the change in energy expenditure (EE [W]) at each speed, we were able to determine circulatory and respiratory costs. In …

Bronchopleural Fistula Resolution With Endobronchial Valve Placement And Liberation From Mechanical Ventilation In Acute Respiratory Distress Syndrome: A Case Series, Haris Kalatoudis, Nikhil Meena, Fuad Zeid, Yousef Shweihat

Internal Medicine

Patients who have acute respiratory distress syndrome (ARDS) with persistent air leaks have worse outcomes. Endobronchial valves (EBV) are frequently deployed after pulmonary resection in noncritically ill patients to reduce and eliminate bronchopleural fistulas (BPFs) with persistent air leak (PAL). Information regarding EBV placement in mechanically ventilated patients with ARDS and high volume persistent air leaks is rare and limited to case reports. We describe three cases where EBV placement facilitated endotracheal extubation in patients with severe respiratory failure on prolonged mechanical ventilation with BPFs. In each case, EBV placement led to immediate resolution of PAL. We believe endobronchial valve …

Large-Scale Association Analysis Identifies New Lung Cancer Susceptibility Loci And Heterogeneity In Genetic Susceptibility Across Histological Subtypes., James D Mckay, Rayjean J Hung, Younghun Han, Xuchen Zong, Robert Carreras-Torres, David C Christiani, Neil E Caporaso, Mattias Johansson, Xiangjun Xiao, Yafang Li, Jinyoung Byun, Alison Dunning, Karen A Pooley, David C Qian, Xuemei Ji, Geoffrey Liu, Maria N Timofeeva, Stig E Bojesen, Xifeng Wu, Loic Le Marchand, Demetrios Albanes, Heike Bickeböller, Melinda C Aldrich, William S Bush, Adonina Tardon, Gad Rennert, M Dawn Teare, John K Field, Lambertus A Kiemeney, Philip Lazarus, Aage Haugen, Stephen Lam, Matthew B Schabath, Angeline S Andrew, Hongbing Shen, Yun-Chul Hong, Jian-Min Yuan, Pier Alberto Bertazzi, Angela C Pesatori, Yuanqing Ye, Nancy Diao, Li Su, Ruyang Zhang, Yonathan Brhane, Natasha Leighl, Jakob S Johansen, Anders Mellemgaard, Walid Saliba, Christopher A Haiman, Lynne R Wilkens, Ana Fernandez-Somoano, Guillermo Fernandez-Tardon, Henricus F M Van Der Heijden, Jin Hee Kim, Juncheng Dai, Zhibin Hu, Michael P A Davies, Michael W Marcus, Hans Brunnström, Jonas Manjer, Olle Melander, David C Muller, Kim Overvad, Antonia Trichopoulou, Rosario Tumino, Jennifer A Doherty, Matt P Barnett, Chu Chen, Gary E Goodman, Angela Cox, Fiona Taylor, Penella Woll, Irene Brüske, H-Erich Wichmann, Judith Manz, Thomas R Muley, Angela Risch, Albert Rosenberger, Kjell Grankvist, Mikael Johansson, Frances A Shepherd, Ming-Sound Tsao, Susanne M Arnold, Eric B Haura, Ciprian Bolca, Ivana Holcatova, Vladimir Janout, Milica Kontic, Jolanta Lissowska, Anush Mukeria, Simona Ognjanovic, Tadeusz M Orlowski, Ghislaine Scelo, Beata Swiatkowska, David Zaridze, Per Bakke, Vidar Skaug, Shanbeh Zienolddiny, Eric J Duell, Lesley M Butler, Woon-Puay Koh, Yu-Tang Gao, Richard S Houlston, John Mclaughlin, Victoria L Stevens, Philippe Joubert, Maxime Lamontagne, David C Nickle, Ma'en Obeidat, Wim Timens, Bin Zhu, Lei Song, Linda Kachuri, María Soler Artigas, Martin D Tobin, Louise V Wain, Thorunn Rafnar, Thorgeir E Thorgeirsson, Gunnar W Reginsson, Kari Stefansson, Dana B Hancock, Laura J Bierut, Margaret R Spitz, Nathan C Gaddis, Sharon M Lutz, Fangyi Gu, Eric O Johnson, Ahsan Kamal, Claudio Pikielny, Dakai Zhu, Sara Lindströem, Xia Jiang, Rachel F Tyndale, Georgia Chenevix-Trench, Jonathan Beesley, Yohan Bossé, Stephen Chanock, Paul Brennan, Maria Teresa Landi, Christopher I Amos

Articles, Abstracts, and Reports

Although several lung cancer susceptibility loci have been identified, much of the heritability for lung cancer remains unexplained. Here 14,803 cases and 12,262 controls of European descent were genotyped on the OncoArray and combined with existing data for an aggregated genome-wide association study (GWAS) analysis of lung cancer in 29,266 cases and 56,450 controls. We identified 18 susceptibility loci achieving genome-wide significance, including 10 new loci. The new loci highlight the striking heterogeneity in genetic susceptibility across the histological subtypes of lung cancer, with four loci associated with lung cancer overall and six loci associated with lung adenocarcinoma. Gene expression …

Spectrum Of Interstitial Lung Disease From A Tertiary Care Hospital In Karachi, Ali Bin Sarwar Zubairi, Maryam Hassan, Talha Shahzad, Sajjad Sarwar, Aamir Abbas, Huzaifa Ahmad, Muhammad Irfan

Section of Pulmonary & Critical Care

Objective: To determine the clinical features and patterns of interstitial lung disease.
Methods: This retrospective study was conducted at the Aga Khan University Hospital, Karachi, and comprised record of patients diagnosed with interstitial lung disease from January 2005 to December 2015. All patients aged 16 years and above diagnosed with interstitial lung disease on the basis of clinical features, radiological features on high-resolution computed tomography of the chest, and lung biopsies were included. SPSS 19 was used for data analysis.
Results: Of the 537 patients, 324(60.3%) of the participants were females. The overall mean age was 60.5±14.9 years. The most …

Association Of Hypercapnia On Admission With Increased Length Of Hospital Stay And Severity In Patients Admitted With Community-Acquired Pneumonia: A Prospective Observational Study From Pakistan., Nousheen Iqbal, Muhammad Irfan, Ali Bin Sarwar Zubairi, Safia Awan, Javaid Khan

Department of Medicine

Objectives: To determine whether the presence of hypercapnia on admission in adult patients admitted to a university-based hospital in Karachi, Pakistan with community-acquired pneumonia (CAP) correlates with an increased length of hospital stay and severity compared with no hypercapnia on admission.

Study Design: A prospective observational study.

Settings: Tertiary care hospital in Karachi, Pakistan.

Methods: Patients who met the inclusion criteria were enrolled in the study. The severity of pneumonia was assessed by CURB-65 and PSI scores. An arterial blood gas analysis was obtained within 24 hours of admission. Based on arterial PaCO₂ levels, patients were divided into three …

Sepsis In Patients With Ventilator Associated Pneumonia Due To Methicillin- Resistant Staphylococcus Aureus: Incidence And Impact On Clinical Outcomes, Anupama Raghuram, Martin Gnoni, Timothy Lee Wiemken, Leslie Beavin, Julio A. Ramirez, Forest W. Arnold, Marcus J. Zervos, Daniel H. Kett, Thomas M. File Jr., Gary Stein, Kimbal D. Ford, Paula Peyrani, The Impact-Hap Investigators

The University of Louisville Journal of Respiratory Infections

Background: Sepsis is a clinical syndrome associated with organ dysfunction due to a dysregulated host response to infection. Methicillin-resistant Staphylococcus aureus (MRSA) Ventilator-associated pneumonia (VAP) is a serious infection frequently associated with sepsis. The objectives of this study were to define the incidence of sepsis and clinical failure in patients with MRSA VAP.

Methods: This was a secondary analysis of the Improving Medicine through Pathway Assessment of Critical Therapy in Hospital-Acquired Pneumonia (IMPACT-HAP) study database. VAP was defined according to CDC criteria. MRSA VAP was considered when MRSA was isolated from a tracheal aspirate or bronchoalveolar lavage. We …

The Presence Of Copd Does Not Influence Clinical Outcomes In Hospitalized Patients With Community-Acquired Pneumonia, Rosemeri Maurici, Alessandra Morello Gearhart, Vanessa Viríssimo Maciel, Forest Arnold, Francisco Fernandez, Annuradha K. Persaud, Stephen Furmanek, Timothy Wiemken, Julio Ramirez, Rodrigo Cavallazzi

The University of Louisville Journal of Respiratory Infections

Introduction

Community-acquired pneumonia (CAP) is a leading cause of death worldwide. Chronic obstructive pulmonary disease (COPD) is a well-established risk factor for development of CAP. What is not as clear is the impact of COPD in the outcomes of patients with CAP. In this study, we compared the outcomes of CAP in COPD and non-COPD patients.

Methods

This was a retrospective cohort study. We conducted a secondary analysis of the Community-Acquired Pneumonia Organization (CAPO) international cohort study database, which includes patients with CAP admitted to several hospitals throughout the world. Outcomes were time to clinical stability, length of hospital stay, …

Pharmacological Threat To Lungs: A Case Series And Literature Review, Omar Irfan, Jaleed A. Gilani, Abeel Irshad, Babar Irfan, Javaid A. Khan

Section of Pulmonary & Critical Care

Drug-induced organ damage stands as a prevalent yet much-neglected issue globally. Keeping in view it's rising frequency, health care providers stand obliged to be well versed with the de-merits of the agents they prescribe. Drug therapies causing damage present with a non-specific clinical presentation, histological findings or radiology, which further elaborates on the necessity of a conscientious diagnosis. Pulmonary architecture ranging from the airways, lung parenchyma, mediastinum, pleura, pulmonary vasculature or the neuromuscular system, all can fall victim to the dreaded outcomes of this menace. In order to establish successful diagnosis, the definite temporal relation between initiation of drug therapy …

Case Series Of Rare Interstitial Lung Disease (Ild)., Naveed Haroon Rashid, Saba Farooq, Mohammad Ahmed, Ali Bin Sarwar Zubairi

Department of Medicine

Pulmonary alveolar proteinosis (PAP) is a rare lung disease where periodic acid Schiff (PAS)-positive eosinophilic material accumulates in the alveoli of the lungs. Here we describe two cases of young males who presented with dynpnoea and weight loss. The HRCT scan of the chest in both cases showed the typical "crazy-paving" pattern and lung biopsies confirmed the diagnosis of PAP. They showed remarkable symptomatic improvement with therapeutic whole lung lavage.

A Phase Ib/Ii Study Of Cabozantinib (Xl184) With Or Without Erlotinib In Patients With Non-Small Cell Lung Cancer., Heather A Wakelee, Scott Gettinger, Jeffrey Engelman, Pasi A Jänne, Howard J. West, Deepa S Subramaniam, Joseph Leach, Michael Wax, Yifah Yaron, Dale R Miles, Primo N Lara

Articles, Abstracts, and Reports

PURPOSE: Cabozantinib is a multi-kinase inhibitor that targets MET, AXL, and VEGFR2, and may synergize with EGFR inhibition in NSCLC. Cabozantinib was assessed alone or in combination with erlotinib in patients with progressive NSCLC and EGFR mutations who had previously received erlotinib.

METHODS: This was a phase Ib/II study (NCT00596648). The primary objectives of phase I were to assess the safety, pharmacokinetics, and pharmacodynamics and to determine maximum tolerated dose (MTD) of cabozantinib plus erlotinib in patients who failed prior erlotinib treatment. In phase II, patients with prior response or stable disease with erlotinib who progressed were randomized to single-agent …

Congenital Abnormalities Of The Lower Airways And Lungs, Christopher M. Oermann

Presentations

Goals and Objectives. Participants will be able to: Describe the 5 stages of fetal lung development. Summarize the prenatal identification and management of congenital abnormalities of the lower airway and lung (CALAL). Explain the classification of CALAL. Compare the clinical characteristics, pathology and management of common CALAL. Discuss the long term prognosis of CALAL.

Raising Taxes Key To Accelerate Tobacco Control In South Asia, Prabhat Jha, Javaid Khan, Sujata Mishra, Prakash Gupta

Section of Pulmonary & Critical Care

No abstract provided.

Diabetes, Cardiovascular Disease, And Chronic Kidney Disease In South Asia: Current Status And Future Directions, Anoop Misra, Nikhil Tandon, Shah Ebrahim, Naveed Sattar, Dewan Alam, Usha Shrivastava, K M Venkat Narayan, Tazeen H. Jafar

Section of Pulmonary & Critical Care

No abstract provided.

Complex Multimodality Central Airway Management Of Aspergillus Pseudomembranous Tracheobronchitis, S Dhillon, M Saoud, Kassem Harris

NYMC Faculty Publications

A 69-year-old woman developed central airway obstruction due to invasive Aspergillus infection resulting in pseudomembranous tracheobronchitis (PTB). Several challenges were encountered in the airway management of this patient including her having relatively smaller airways which were more prone to obstruction by pseudomembranes and made airway interventions difficult. The patient had clinical deterioration in spite of antifungal therapy and bronchoscopic debridement. The multimodality airway techniques included the use of smaller biliary balloons for dilatation, using a hybrid stent to slowly dilate and maintain patency of right main stem and finally the insertion of right secondary carina peripheral Y stent, which resulted …

Appendicular Mass – A Rare Form Of Tuberculosis, Petrisor Banu, Vlad D. Constantin, Florian Popa, Mircea Bratucu, Teodora Vladescu, Cristian Balalau

Journal of Mind and Medical Sciences

Tuberculosis is in the top 10 causes of death worldwide, being one of the most deadly infectious diseases. It is estimated that one of three people from the entire earth population has a latent infection with M tuberculosis. This aerobic bacterium possesses the ability to persist in host tissues for years and to begin replication once immunity declines.

The lungs are most frequent site of infection as the Mycobacterium tuberculosis is carried by aerosol droplets and is commonly transmitted by respiratory route. The second way of transmission is by contaminated food.

Intestinal contamination coexists with pulmonary tuberculosis and only 10% …

Pulmonary Surfactant Fortified With Cath-2 As A Novel Therapy For Bacterial Pneumonia, Brandon J. Baer

Western Research Forum

Background: Bacterial pneumonia is a leading cause of death worldwide, with high mortality rates persisting even after antibiotic treatment. Current treatments for pneumonia involve administration of antibiotics, however after the bacteria are killed they release toxic substances that induce inflammation and lung dysfunction. Host defense peptides represent a potential solution to this problem through their ability to down regulate inflammation. However, effective delivery to the lung is difficult because of the complex branching structure of the airways. My study addresses this delivery problem by using exogenous surfactant, a pulmonary delivery vehicle capable of improving spreading of these peptides throughout the …

Assessing Decision Of Inpatient Or Outpatient Care In Community Acquired Pneumonia: Apt Care Study, Saleem Ullah, Javaid Khan, Amanullah Khan, Irfan Hashemy

Section of Pulmonary & Critical Care

Objective: To estimate the proportion of community-acquired pneumonia patients with disagreement between Confusion, Uraemia, Respiratory rate, Blood pressure, age > 65 years recommendation and physician\\\'s decision to hospitalise or not.
Methods: This cross-sectional nation-wide, non-interventional, cross-sectional study was carried out across 10 cities of Pakistan from December 2011 to May 2012, and recruited consenting adult patients with confirmatory diagnosis of community-acquired pneumonia on chest X-ray. Confusion, Uraemia, Respiratory rate, Blood pressure, age > 65 years recommendation for each patient was determined at the time of analysis. This recommendation was compared with treatment decision made by the physician. Disagreement was considered when the …