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This randomized controlled trial investigates the effect of Pursed Lip Breathing (PLB) on anxiety levels and physiological parameters in patients with Chronic Obstructive Pulmonary Disease (COPD) following bronchoscopy. While PLB is known to improve oxygenation and ventilation in pulmonary rehabilitation, its specific impact on the immediate recovery period after bronchoscopy is understudied. The study aims to determine if nurse-led PLB intervention significantly improves heart rate, blood pressure, oxygen saturation, and reduces anxiety compared to standard care.
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Chronic Obstructive Pulmonary Disease (COPD), which ranks among the leading causes of morbidity and mortality worldwide, is expected to have increasingly negative consequences. There are over 600 million COPD patients worldwide and approximately 2-3 million in Turkey. COPD requires a complex and long-term response that coordinates the contributions of a wide range of professionals, specific types of medication, and appropriate monitoring equipment, and this care should ideally be integrated into a system that promotes patient empowerment. The associated treatment process involves repeated hospital admissions, which impose high economic costs on countries.
In the dynamic environment of critical care medicine, bedside bronchoscopy has emerged as a crucial diagnostic and therapeutic tool that bridges the gap between traditional pulmonary interventions and the urgent needs of critically ill patients. Bronchoscopy allows direct visualization of the airways and lung parenchyma and can be useful in evaluating various bronchopulmonary conditions and diseases, including foreign bodies, tumors, infectious and inflammatory processes, airway obstruction, and bronchopulmonary hemorrhage. Bronchoscopy may also be associated with other complications and discomforts beyond existing respiratory system problems.
Teaching patients breathing exercises is another nursing intervention that can increase oxygenation and reduce dyspnea. Various breathing exercises are available, including PLB. PLB is a breathing technique used to improve oxygenation and ventilation. This breathing technique involves consciously inhaling through the nose, followed by a slow and controlled exhalation through pursed or pinched lips, which prolongs the exhalation phase compared to the normal inspiration-exhalation ratio.
Nurses' ability to promptly recognize distress enables intervention teams to respond quickly and prevent further deterioration. The literature shows that pursed-lip breathing improves vital signs and oxygenation in COPD rehabilitation and during the recovery process after bronchoscopy. In a recent study, patients who practiced pursed-lip breathing during the post-bronchoscopy period showed significant improvements in parameters such as oxygen saturation, pulse rate, and blood pressure compared to the control group. However, studies examining the effect of this technique on anxiety and immediate physiological parameters in COPD patients during the bronchoscopy procedure are limited. This study was designed as a randomized controlled trial to determine the effect of PLB application on anxiety levels and physiological parameters (heart rate, blood pressure, oxygen saturation) in patients with COPD after bronchoscopy.
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64 participants in 2 patient groups
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Ruhat Tilki, PhD Candidate
Data sourced from clinicaltrials.gov
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