ArticleInternational journal of chronic obstructive pulmonary disease
Obstructive Sleep Apnea is Associated with an Increased Prevalence of Polycythemia in Patients with Chronic Obstructive Pulmonary Disease.
Article in International journal of chronic obstructive pulmonary disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.
- Prevalence of Cardiovascular Diseases in COPD-OSA Overlap Syndrome Versus COPD Alone: A Systematic Review.Pulmonary medicine · 2026Pooled it
- Chronic Obstructive Pulmonary Disease and Obstructive Sleep Apnea Coexistence: From Pathophysiology to Clinical Complications.International journal of chronic obstructive pulmonary disease · 2025Review
- Chronic obstructive pulmonary disease burden, grades and erythrocytosis at a tertiary hospital in western Uganda.BMC pulmonary medicine · 2024Article
- Prevalence and Risk Factors of Pulmonary Embolism in COPD Patients Complicated with Secondary Polycythemia.International journal of chronic obstructive pulmonary disease · 2024Article
- Polycythemia among Patients with Chronic Obstructive Pulmonary Disease Admitted to the Department of Medicine in a Tertiary Care Center: A Descriptive Cross-sectional Study.JNMA; journal of the Nepal Medical Association · 2023Article
- Differences in selected blood parameters between brachycephalic and non-brachycephalic dogs.Frontiers in veterinary science · 2023Article
- The Overlap Syndrome of Obstructive Sleep Apnea and Chronic Obstructive Pulmonary Disease: A Systematic Review.Biomedicines · 2022Review
- Nocturnal hypoxemia in COPD: the amplifying effect of comorbid OSA and PLMS on oxygen desaturation.Therapeutic advances in respiratory diseaseArticle
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeChronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (OSA) are associated with polycythemia. However, there still remain unanswered questions about the relationship between overlap syndrome (OVS), where OSA and COPD coexist, and polycythemia. Here, we aimed to establish the prevalence of polycythemia in OVS patients and to explore the impact of OSA on polycythemia. PATIENTS AND
methodsPatients with COPD underwent overnight polysomnography (PSG), pulmonary function tests, echocardiography, and complete blood counts. All patients were ethnic Han Chinese and free of prolonged oral corticosteroid use, hematological system disease, severe systemic disease, and other sleep-disordered breathing. OVS was defined as COPD patients with an apnea-hypopnea index ≥15 events/h, and polycythemia was defined as an Hb >165 g/L in men and >160 g/L in women.
resultsEight-hundred and eighty-six patients with COPD were included in the analysis. The prevalence of polycythemia was significantly higher in OVS patients than COPD-alone patients (6.4% vs 2.9%,
conclusionPatients with OVS have a higher prevalence of polycythemia than those with COPD alone, and TS
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