Kerri A. Johannson

ORCID: 0000-0003-1205-5511
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About
Contact & Profiles
Research Areas
  • Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Medical Imaging and Pathology Studies
  • Sarcoidosis and Beryllium Toxicity Research
  • Systemic Sclerosis and Related Diseases
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Occupational and environmental lung diseases
  • Occupational exposure and asthma
  • Inhalation and Respiratory Drug Delivery
  • Pulmonary Hypertension Research and Treatments
  • Air Quality and Health Impacts
  • Respiratory and Cough-Related Research
  • Eosinophilic Disorders and Syndromes
  • Pleural and Pulmonary Diseases
  • Transplantation: Methods and Outcomes
  • Inflammatory Myopathies and Dermatomyositis
  • Lung Cancer Diagnosis and Treatment
  • Social Media in Health Education
  • Cystic Fibrosis Research Advances
  • Voice and Speech Disorders
  • Dysphagia Assessment and Management
  • IL-33, ST2, and ILC Pathways
  • Mycobacterium research and diagnosis
  • Polyomavirus and related diseases
  • Sleep and related disorders
  • Pneumonia and Respiratory Infections

Vancouver General Hospital
2025

Université de Montréal
2025

University of British Columbia
2025

University of Calgary
2016-2025

University of Toronto
2025

St. Paul's Hospital
2025

St. Paul's Hospital
2025

University of Alberta
2023

University of Saskatchewan
2023

Royal Prince Alfred Hospital
2021

Acute exacerbations of idiopathic pulmonary fibrosis are associated with high mortality and unknown cause. The effect air pollution on interstitial lung disease is unknown. This study aims to define the association exposure acute exacerbation fibrosis. Patients corresponding data were identified from a longitudinal cohort. Air exposures assigned each patient for ozone, nitrogen dioxide, particulate matter, sulfur dioxide carbon monoxide based geo-coded residential addresses. Cox proportional...

10.1183/09031936.00122213 article EN European Respiratory Journal 2013-10-31

Rationale: Current diagnosis of chronic hypersensitivity pneumonitis (cHP) involves considering a combination clinical, radiological, and pathological information in multidisciplinary team discussions. However, this approach is highly variable with poor agreement between centers.Objectives: We aimed to identify diagnostic criteria for cHP that reach consensus among international experts.Methods: A three-round modified Delphi survey was conducted April August 2017. total 45 experts...

10.1164/rccm.201710-1986oc article EN American Journal of Respiratory and Critical Care Medicine 2017-11-27

Progressive fibrosing interstitial lung disease (PF-ILD) is characterised by progressive physiological, symptomatic and/or radiographic worsening. The real-world prevalence and characteristics of PF-ILD remain uncertain.Patients were enrolled from the Canadian Registry for Pulmonary Fibrosis between 2015 2020. was defined as a relative forced vital capacity (FVC) decline ≥10%, death, transplantation or any two of: FVC ≥5% <10%, worsening respiratory symptoms fibrosis on computed tomography...

10.1183/13993003.02571-2021 article EN other-oa European Respiratory Journal 2022-03-10

Section:ChooseTop of pageAbstract <<IntroductionMethodsHistorical PerspectiveEpidemiologyEtiologiesClinical Manifestations a...Lung FunctionImaging FeaturesPathology FeaturesOutcome and ComplicationsPathogenesis Putative...Terminology Definitio...Is CPFE a Syndrome?ManagementClinical Trial Perspectiv...Relevance for the...Research PrioritiesConclusionsReferencesCITING ARTICLES

10.1164/rccm.202206-1041st article EN American Journal of Respiratory and Critical Care Medicine 2022-08-15

Rationale: Patients frequently use YouTube as a platform for dissemination and consumption of health information. Caregivers patients affected by idiopathic pulmonary fibrosis (IPF) are likely consumers this Objectives: We aimed to determine viewer engagement, quality, content videos on IPF compare the provided information with contemporaneous guidelines. Methods: analyzed first 200 resulting from search term "idiopathic fibrosis." Patient-directed containing any were eligible. Each video...

10.1513/annalsats.201809-644oc article EN Annals of the American Thoracic Society 2019-01-04

<h3>Background</h3> Recent studies have suggested that non-definitive patterns on high-resolution CT (HRCT) scan provide sufficient diagnostic specificity to forgo surgical lung biopsy in the diagnosis of idiopathic pulmonary fibrosis (IPF). The objective this study was determine test characteristics HRCT for identifying histopathological usual interstitial pneumonia (UIP). <h3>Methods</h3> Patients with biopsy-proven disease (ILD) and scans were identified from two academic ILD centres....

10.1136/thoraxjnl-2016-209671 article EN Thorax 2017-01-12

We conducted an international study of idiopathic pulmonary fibrosis (IPF) diagnosis among a large group physicians and compared their diagnostic performance to panel IPF experts. A total 1141 respiratory 34 experts participated. Participants evaluated 60 cases interstitial lung disease (ILD) without interdisciplinary consultation. Diagnostic agreement was measured using the weighted kappa coefficient (κ w ). Prognostic discrimination between other ILDs used validate accuracy for...

10.1183/13993003.00936-2017 article EN European Respiratory Journal 2017-08-01

Particulate matter 2.5 μm or less in diameter (PM2.5) is associated with adverse outcomes for patients idiopathic pulmonary fibrosis, but its association other fibrotic interstitial lung diseases (fILDs) and the of PM2.5 composition remain unclear.

10.1001/jamainternmed.2022.4696 article EN cc-by-nc-nd JAMA Internal Medicine 2022-10-17

Rationale: Transbronchial cryobiopsy (TBCB) for the diagnosis of interstitial lung disease (ILD) has shown promising results, but prospective studies with matched surgical biopsy (SLB) have yielded conflicting results. Objectives: We aimed to assess within- and between-center diagnostic agreement between TBCB SLB at both histopathologic multidisciplinary discussion (MDD) levels in patients diffuse ILD. Methods: In a multicenter study, we performed referred SLB. After blinded review by three...

10.1164/rccm.202209-1812oc article EN American Journal of Respiratory and Critical Care Medicine 2023-02-16
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