Respiratory care
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High-flow nasal cannula (HFNC) oxygen therapy produces noise at a level such that patients often complain. However, the noise level has not been measured digitally. ⋯ The findings in this study show that the noise level of HFNC/Venturi could be reduced by attaching an intake filter. However, the noise level of HFNC/blender and HFNC/turbine decreased in comparison with HFNC/Venturi without an intake filter.
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Exercise intolerance is the most predominant symptom in patients with COPD. Nevertheless, it is unclear whether walking economy and gait variability are altered in these patients. Thus, our main objective was to compare the cost of transport and gait variability as a function of speed, including the self-selected walking speed, in subjects with COPD relative to healthy subjects. ⋯ Subjects with COPD choose their walking speed so as to keep the dyspnea sensation tolerable and to keep gait variability and cost of transport at an acceptable level. These outcomes suggest that interventions acting on dyspnea and gait pattern may increase patients' self-selected walking speed and improve their quality of life.
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Observational Study
Air Travel for Subjects Receiving Long-Term Oxygen Therapy.
Ambulatory oxygen (O2) is the recommended treatment for hypoxemia at rest or induced by exercise. Commercial aircraft often fly at altitudes of 30,000 feet; their cabins are pressurized to altitudes of 6,000-8,000 feet, with an equivalent FIO2 of 0.15. O2 supplementation, for those receiving baseline ambulatory O2, is paramount. ⋯ Air travel is challenging; however, those who did travel reported a mainly positive experience. Increasing available information on options for travel should help individuals.
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Editorial Comment
Does Tracheostomy Remain an Option in Neuromuscular Patients?
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Incentive spirometry (IS) is commonly prescribed to reduce pulmonary complications, despite limited evidence to support its benefits and a lack of consensus on optimal protocols for its use. Although numerous studies and meta-analyses have examined the effects of IS on patient outcomes, there is no clear evidence establishing its benefit to prevent postoperative pulmonary complications. Clinical practice guidelines advise against the routine use of IS in postoperative care. Until evidence of benefit from well-designed clinical trials becomes available, the routine use of IS in postoperative care is not supported by high levels of evidence.