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Pubmed for Handhelds

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  • Title: Detection and prevalence of chronic obstructive pulmonary disease in a cardiovascular clinic: evaluation using a hand held FEV₁/FEV₆ meter and questionnaire.
    Author: Wada H, Nakano Y, Nagao T, Osawa M, Yamada H, Sakaguchi C, Matsumoto T, Tsutamoto T, Ito M, Horie M.
    Journal: Respirology; 2010 Nov; 15(8):1252-8. PubMed ID: 20920134.
    Abstract:
    BACKGROUND AND OBJECTIVE: COPD is one of the leading causes of morbidity and mortality worldwide, and its prevalence continues to increase. Although spirometry is indispensable for the diagnosis of COPD, other simple and reliable tools are necessary for screening of COPD because spirometry is not widely available. This study investigated the usefulness of a combination of an electronic FEV₁/FEV₆ meter (PiKo-6) with a COPD questionnaire as a screening method in patients with cardiovascular diseases. METHODS: The PiKo-6 and the COPD questionnaire of the International Primary Care Airways Group were used to screen patients attending a cardiovascular outpatient clinic. Patients with FEV₁/FEV₆ < 70% were defined as having airflow limitation. Patients diagnosed with airflow limitation underwent spirometry. Using data from the PiKo-6 and the COPD questionnaire, patients were assigned to a COPD group or a non-COPD group. The relationship between PiKo-6 measurements and spirometry was also evaluated. RESULTS: Among 753 patients, 82 (10.9%) showed airflow limitation when assessed with the PiKo-6. Of these patients, 79 (10.5%) were assigned to the COPD group. FEV₁, FEV₆ and FEV₁/FEV₆, as measured with the PiKo-6, correlated significantly with FEV₁, FVC and FEV₁/FVC, respectively, as measured by spirometry (r = 0.865, 0.751 and 0.57). Among the cardiovascular comorbidities, heart failure and ischaemic heart disease showed slightly stronger associations with airflow limitation (13.8% and 12.5%, respectively). CONCLUSIONS: Combination of the PiKo-6 with a COPD questionnaire may be a useful and feasible method of identifying undiagnosed COPD patients attending a cardiovascular outpatient clinic.
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