Lung
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Cystic fibrosis (CF) is a progressive disease resulting in end-stage lung disease. Lung transplantation (LTx) is an important consideration in these patients. Studies have suggested greater post-LTx mortality among CF patients with public insurance. We evaluated the influence of insurance status on survival among CF patients during their time on the LTx waitlist. ⋯ CF patients with Medicaid insurance have higher risk of death while awaiting LTx when compared to patients with Medicare or private insurance. The impact of insurance status on survival in this population begins before LTx and compounds the disparities previously observed in post-transplant outcomes.
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Observational Study
End-Expiratory Lung Volume in Patients with Acute Respiratory Distress Syndrome: A Time Course Analysis.
Lung injury can be caused by ventilation and non-physiological lung stress (transpulmonary pressure) and strain [inflated volume over functional residual capacity ratio (FRC)]. FRC is severely decreased in patients with acute respiratory distress syndrome (ARDS). End-expiratory lung volume (EELV) is FRC plus lung volume increased by the applied positive end-expiratory pressure (PEEP). Measurement using the modified nitrogen multiple breath washout technique may help titrating PEEP during ARDS and allow determining dynamic lung strain (tidal volume over EELV) in patients ventilated with PEEP. In this observational study, we measured EELV for up to seven consecutive days in patients with ARDS at different PEEP levels. ⋯ EELV did not change significantly for up to 7 days in patients with ARDS. By contrast, PaO2/FiO2 improved significantly. Bedside measurement of EELV may be a novel approach to individualise lung-protective ventilation on the basis of calculation of dynamic strain as the ratio of VT to EELV.
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Comparative Study
Comparing Length of Stay Between Patients Taking Rivaroxaban and Conventional Anticoagulants for Treatment of Venous Thromboembolism.
Recent studies have demonstrated non-inferiority of rivaroxaban when compared to warfarin for the treatment of pulmonary embolism and deep venous thrombosis. Analysis of data from the EINSTEIN trials has demonstrated that patients who received rivaroxaban had a shorter length of stay (LOS) compared to those who received warfarin. However, these trials had strict inclusion and exclusion criteria, and were designed for a different primary outcome. Also, data from these closely monitored clinical trials may not reflect the daily practice of medicine. ⋯ In patients admitted with newly diagnosed VTE, those discharged on rivaroxaban had a significantly shorter LOS compared to those discharged on warfarin. In the appropriate subset of patients with VTE, treatment with rivaroxaban may result in significant cost savings for the hospital.
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Pulmonary lobectomy with en bloc chest wall resection is a common strategy for treating lung cancers invading the chest wall. We hypothesized a direct relationship exists between number of ribs resected and postoperative respiratory complications. ⋯ In patients undergoing lobectomy with en bloc chest wall resection for non-small cell lung cancer, the number of ribs resected is directly associated with incidence of postoperative respiratory complications.
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Ultrasonographic assessment of diaphragm function with patients on low levels of pressure support (PS) predicts extubation outcomes, but similar information regarding extubation success under other conditions is lacking. The purpose of this study was to determine whether ultrasound (US) measurements of the diaphragm made on various levels of PS can predict time until successful extubation. ⋯ Diaphragm US is a valid predictor of extubation success at some but not all PS settings. Using a ∆tdi% of 20 % on PS levels up to 10/5 cm of H2O may reduce both unnecessarily prolonged intubations and prevent emergent reintubations.