DocWire News Editors

DocwireNews

Obstructive sleep apnea (OSA) affects an estimated 15% of the population, of whom 80% are undiagnosed; the estimated annual economic burden of this disease in the United States is $150 billion. A study that was published online as part of the ATS 2020 International Conference examined the clinical value of spirometry to predict OSA diagnosis and severity.The authors performed a retrospective chart review of diagnostic sleep studies performed at two hospitals between November 2017 and October 2018 (Canberra Hospital) and November 2017 and March 2018 (Prince of Wales Hospital). The associations between apnea-hypopnea index (AHI) and forced expiratory volume 1 percentage predicted (FEV1%) and forced vital capacity percentage predicted (FVC%) were analyzed using Spearman&rsquo;s Rho test; FEV1% and FVC% were used as test variables in receiver operating characteristic (ROC) analysis.Final analysis included 241 patients who received obstructive spirometry (n=46), restrictive spirometry (n=44), or normal spirometry (n=151). In the obstructive group, FEV1% (P=0.012) and FVC% (P=0.012) were significantly correlated with AHI. In normal and restrictive spirometry patients, no correlations were observed between AHI and FEV1% or FVC%. In the obstructive group, more than half of patients (n=25; 54.3%) were diagnosed with chronic obstructive pulmonary disease (COPD), and 20 patients (43.5%) were diagnosed with asthma. For FEV1%, the area under the ROC curve to identify moderate to severe OSA in obstructive spirometry patients was 0.710 (P=0.025); for FVC%, the value was 0.707 (P=0.027).The study authors concluded that FEV1% and FVC% may be of use in identifying moderate to severe OSA in patients who have obstructive spirometry, noting that many of these patients had an asthma and/or COPD diagnosis.&ldquo;The interrelationship between airways disease and OSA requires further study. The negative correlation of FEV1% and FVC% with AHI suggests that there may be an association between the severity of airways disease and the severity of OSA,&rdquo; they summarized.

MarkAlain Déry, DO

The Significant Danger Measles Pose for Unvaccinated Children

Infectious Disease

Andrew Moreno

Antithrombotic Care in Hemophilia: A Summary of Multi-Organizational Clinical Practice Guidance

Hemophilia

James Tumlin, MD

Joel M. Topf, MD, FACP

Proteinuria Remission With Sparsentan in FSGS

NKF Spring Clinical Meetings 2025

Latest News

Clinical Parameters to Predict Sleep Apnea Presence and Severity

ATS 2020 Conference Coverage

Obstructive sleep apnea (OSA) affects an estimated 15% of the population, of whom 80% are undiagnosed; the estimated annual economic burden of this disease in the United ...

About Us

Editorial Policy

Advertising

Contact Us

eNewsletters

Contribute

Career Center

MashupMD

Blood Cancers Today

Cancer Nursing Today

GU Oncology Now

Urban Health Today

Bile Duct Cancer

Colorectal Cancer

Gastroesophageal Cancer

Gastric Cancer

GEP-NETs

GIST

Liver Cancer

Pancreatic Cancer

GI Oncology Now

Anemia

Deep Vein Thrombosis

Essential Thrombocythemia

Immune Thrombocytopenic Purpura

Myelodysplastic Syndromes

Myelofibrosis

Myeloproliferative Neoplasms

Polycythemia Vera

Pulmonary Embolism

Sickle Cell Disease

Thrombocytopenia

Thrombophilia

Thrombosis

Thrombotic Thrombocytopenic Purpura

Venous Thromboembolism

von Willebrand Disease

Heme Today

Acute Kidney Injury

ADPKD

Anemia and Kidney Disease

Chronic Kidney Disease

COVID-19 and Kidney Disease

Diabetes and Hypertension

End-Stage Renal Disease

Gout

Hyperkalemia

IgAN

Kidney Transplantation

Metabolic Acidosis

Nephrology Times

HER2 Breast Cancer

HR Breast Cancer

Triple-Negative Breast Cancer

Genetics & Breast Cancer

Breast Cancers Today

Atherosclerotic Disease

Atrial Fibrillation

Heart Failure

Hypertension

Interventional Cardiology

Lipid Management

Practice Tips With Dr. Lichaa

Preventive Cardiology

Stroke

Cardiology

Breast Cancer

Gynecologic Cancer

Head and Neck Cancer

Skin Cancer

Oncology

Sleep

Urology

Diabetes

Ophthalmology

— Demodex Blepharitis

Neurology

Rheumatology

Gastroenterology

Pulmonology

Infectious Diseases

— HIV

Health and Wellness

Lupus

Future of Medicine

Orthopedics

Pharmacology

Career News

More

Conferences

CardioNerds

The Sleep Source With Dr. Morse

Rheumatology Rounds With Dr. Maheswaranathan

Partners

Expert Interviews

Subscribe