An Analysis of Adverse Events Associated with Mandibular Repositioning Appliances (MRA)- Study of the FDA Manufacturer and User Facility Device Experience (MAUDE) Database.

Study Objectives: Mandibular repositioning appliances (MRAs) are widely used for obstructive sleep apnea (OSA) and snoring, but their safety profile remains underexplored. This study analyzes adverse events associated with MRAs using the FDA Manufacturer and User Facility Device Experience (MAUDE) database.

Methods: A retrospective review of the MAUDE database identified adverse events related to MRAs under the product code "LRK" from January 1, 2015, to February 8, 2025.

Role of ultrasound in differentiating simple parapneumonic from complicated parapneumonic pleural effusion.

Introduction: Thoracic ultrasound (TUS) is a standard procedure to identify pleural effusions, but its diagnostic accuracy in differentiating CPPE from simple parapneumonic effusions (SPPE) requires further investigation.

Research Question: Can TUS accurately differentiate CPPE from SPPE in patients with parapneumonic effusions?

Study Design: and Method: This is a retrospective analysis of all adult patients with parapneumonic effusion. TUS findings were categorized as echogenic (septated or non-septated) or non-echogenic.