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Pursed lips breathing training using ear oximetry.

B L Tiep, M Burns, D Kao

    Chest
    |August 1, 1986
    PubMed
    Summary
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    Pursed lips breathing (PLB) training effectively increases blood oxygen levels in patients with chronic obstructive lung disease (COLD). This technique, when guided by ear oximetry, helps patients improve their arterial oxygen saturation (SaO2).

    Area of Science:

    • Respiratory Medicine
    • Pulmonary Rehabilitation

    Background:

    • Pursed lips breathing (PLB) is a common intervention for chronic obstructive lung disease (COLD).
    • Existing research suggests PLB enhances arterial oxygen saturation (SaO2) and aids in carbon dioxide removal, while also alleviating dyspnea.

    Purpose of the Study:

    • To evaluate the efficacy of pursed lips breathing (PLB) training in improving arterial oxygen saturation (SaO2) in hypoxemic patients with stable COLD.
    • To compare the effects of PLB with general relaxation techniques on SaO2 in COLD patients.

    Main Methods:

    • A randomized controlled trial with an A-B-A crossover design was conducted.
    • Twelve hypoxemic subjects with stable COLD were assigned to either a PLB group or a general relaxation (Rlx) control group.
    • SaO2 was monitored using ear oximetry, with PLB instruction focused on increasing SaO2.

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    Main Results:

    • Pursed lips breathing (PLB) significantly improved SaO2 compared to baseline values (p < 0.001).
    • General relaxation (Rlx) did not yield a significant improvement in SaO2.
    • The use of ear oximetry as a monitoring display during PLB training was effective.

    Conclusions:

    • Patients with COLD can effectively learn to increase their SaO2 through pursed lips breathing (PLB) training.
    • Adjunctive use of ear oximetry enhances the effectiveness of PLB training for improving SaO2 in COLD patients.