Publications by authors named "Lixu Guo"
Background: Simultaneous endoscopic septoplasty is often required during endonasal endoscopic dacryocystorhinostomy (En-DCR) to improve access to the lacrimal sac and potentially optimize surgical success rates. In current practice, the decision to proceed to concomitant endoscopic septoplasty during En-DCR in patients with primary acquired nasolacrimal duct obstruction (PANDO) is determined by anterior rhinoscopy and nasal endoscopic examination. However, none of these methods can be used to quantitatively assess the severity of septal deviation to determine the need for concomitant endoscopic septoplasty during En-DCR.
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- Carbonaceous aerosols, which include organic carbon (OC) and elemental carbon (EC), impact human health and climate, making accurate measurement crucial for understanding air quality and radiative forcing.
- The study addresses challenges in distinguishing OC from EC, particularly due to OC's tendency to char, and emphasizes the need for reliable reference materials (RMs) to improve measurement techniques.
- The researchers developed new traceable RMs using an innovative aerosol generation method, ensuring uniform particle deposition and validating their stability and accuracy, which enhances the calibration process for OC and EC detection.
Accurate measurements are critical for timely early warning and effective prevention of epidemics due to the continuing impact of bioaerosols on human health. In recent years, researchers have been focused on developing and calibrating online monitoring instruments. However, there is still a lack of laboratory-generated standard aerosol samples suitable for calibration.
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- The study aimed to determine how useful digital radiography dacryocystography is for patients with nasolacrimal duct obstruction before undergoing surgery (endoscopic dacryocystorhinostomy).
- Results indicated that a smaller transverse diameter of the lacrimal sac (≤4.350 mm) correlated with worse postoperative outcomes, as evidenced by higher epiphora severity scores.
- Pre-surgical measurement of the lacrimal sac's size is a reliable predictor of surgical success, with smaller sizes linked to a significantly increased risk of failed outcomes.