Chest
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Randomized Controlled Trial Comparative Study
Effect of oxygen and acetazolamide on nocturnal cardiac conduction, repolarization and arrhythmias in pre-capillary pulmonary hypertension and sleep-disturbed breathing.
Sleep-disturbed breathing (SDB) is common in patients with precapillary pulmonary hypertension (PH). Nocturnal oxygen therapy (NOT) and acetazolamide improve SDB in patients with PH, and NOT improves exercise capacity. We investigated the effect of NOT and acetazolamide on nocturnal cardiac conduction, repolarization, and arrhythmias in patients with PH and SDB. ⋯ In patients with PH with SDB, NOT reduces nocturnal heart rate and QTc in the morning, thus, favorably modifying prognostic markers.
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Randomized Controlled Trial Multicenter Study Observational Study
Characterization of First-Time Hospitalizations in Patients With Newly Diagnosed Pulmonary Arterial Hypertension in the REVEAL Registry.
Hospitalization is an important outcome in pulmonary arterial hypertension (PAH), shown previously to correlate with survival. Using the Registry to Evaluate Early and Long-term PAH Disease Management (REVEAL Registry), we sought to characterize first-time hospitalizations and their effect on subsequent hospitalization and survival in patients with newly diagnosed disease. ⋯ In the REVEAL Registry, PAH-related hospitalization was associated with relatively more rehospitalizations and worse survival at 3 years.
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Randomized Controlled Trial Multicenter Study Comparative Study
Novel use of pleural ultrasound can identify malignant entrapped lung prior to effusion drainage.
The presence of entrapped lung changes the appropriate management of malignant pleural effusion from pleurodesis to insertion of an indwelling pleural catheter. No methods currently exist to identify entrapped lung prior to effusion drainage. Our objectives were to develop a method to identify entrapped lung using tissue movement and deformation (strain) analysis with ultrasonography and compare it to the existing technique of pleural elastance (PEL). ⋯ This novel ultrasound technique can identify entrapped lung prior to effusion drainage, which could allow appropriate choice of definitive management (pleurodesis vs indwelling catheter), reducing the number of interventions required to treat malignant pleural effusion.
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Randomized Controlled Trial
Detection of Fibroproliferation by Chest High Resolution Computed Tomography in Resolving Acute Respiratory Distress Syndrome.
In ARDS, the extent of fibroproliferative activity on chest high-resolution CT (HRCT) scan has been reported to correlate with poorer short-term outcomes and pulmonary-associated quality of life. However, clinical factors associated with HRCT scan fibroproliferation are incompletely characterized. We questioned if lung compliance assessed at the bedside would be associated with fibroproliferation on HRCT scans obtained during the resolution phase of ARDS. ⋯ In patients with ARDS, diminished lung compliance measured bedside was associated with radiologic fibroproliferation 14 days post diagnosis. Establishing factors that predispose to development of excessive fibroproliferation with subsequent confirmation by chest HRCT scan represents a promising strategy to identify patients with ARDS at risk for poorer clinical outcomes.