Respiration; international review of thoracic diseases
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Randomized Controlled Trial Comparative Study
Metabolic and respiratory variables during pressure support versus synchronized intermittent mandatory ventilation.
Mechanically ventilated patients interact and respond differently to different modes of ventilatory support. ⋯ Changes in the level of PSV resulted in smaller changes in metabolic and respiratory variables compared with equivalent changes in the level of volume-cycled SIMV support. PSV may be more suitable for progressive respiratory muscle reloading.
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Airway stenting is nowadays an established method for the palliative and/or curative treatment of central airways obstruction. However, complications related to the use of airway stents have been reported. ⋯ The accumulated and evaluated evidence suggests that SARTI probably involves 1 in 5 patients with airway stent. Although the possibility of SARTI should not discourage the interventional pneumologists from inserting airway stents, the data seem to underline the urgent need for establishing a consensus definition and diagnostic criteria for SARTI.
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Randomized Controlled Trial
Home-based exercise training as maintenance after outpatient pulmonary rehabilitation.
Pulmonary rehabilitation is successful in improving exercise capacity and quality of life in patients with chronic obstructive pulmonary disease (COPD). However, training effects diminish over time. ⋯ We demonstrated that training effects obtained from an outpatient rehabilitation program can be maintained by home-based exercise training in patients with moderate COPD.
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Electrical impedance tomography (EIT) is able to detect variations in regional lung electrical impedance associated with changes in both air and blood content and potentially capable of assessing regional ventilation-perfusion relationships. However, regional lung perfusion is difficult to determine because the impedance changes synchronous with the heart rate are of very small amplitude. ⋯ Our results indicate that redistribution of regional lung perfusion can be assessed by EIT during one-lung ventilation. The performance of EIT in detecting changes in lung perfusion in even smaller lung regions remains to be established.