Related Experiment Video
Updated: Feb 4, 2026

Uncontrolled Hemorrhagic Shock Modeled via Liver Laceration in Mice with Real Time Hemodynamic Monitoring
Published on: May 21, 2017
Prediction models for postoperative uncontrolled chronic rhinosinusitis in daily practice
Xiaoyao Tao1, Fenghong Chen1, Yueqi Sun1
1Otorhinolaryngology Hospital, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
This study developed prediction models for uncontrolled chronic rhinosinusitis (CRS) after surgery. Key predictors include tissue eosinophilia and high CT scores, aiding in prognosis assessment.
Area of Science:
- Otolaryngology
- Surgical Outcomes
- Inflammatory Airway Diseases
Background:
- Chronic rhinosinusitis (CRS) management guidelines lack postoperative control assessment data.
- No established prediction models exist for identifying patients at risk of uncontrolled CRS post-surgery.
Purpose of the Study:
- To develop and validate predictive models for postoperative uncontrolled CRS.
- To identify independent risk factors associated with treatment failure.
Main Methods:
- Retrospective analysis of 136 patients who underwent endoscopic sinus surgery.
- Logistic regression and ROC curve analysis to identify risk factors and create models.
- Development of pathological and clinical prediction models.
Main Results:
- Nearly 30% of patients experienced uncontrolled CRS post-surgery.
- Independent risk factors identified: tissue eosinophil ratio >0.206, blood eosinophil ratio >0.025, Lund-Mackay score ≥15, and ethmoid/maxillary CT score ratio.
- Pathological and clinical models were generated to categorize CRS severity.
Conclusions:
- Simplified prediction models for uncontrolled CRS were developed.
- These models can assist otolaryngologists in predicting surgical prognosis.
- Early identification of at-risk patients can potentially improve management strategies.
Related Concept Videos
Classical Conditioning in Daily Life
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
Predicting Molecular Geometry
Prediction Intervals
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
End Point Prediction: Gran Plot
For potentiometric titration, the Gran plot is created by plotting...
Sensitivity, Specificity, and Predicted Value
Sensitivity is the...
Characteristics of Practical Op Amps
The ratio of differential gain to the common-mode gain is defined as the common-mode rejection ratio (CMRR). This ratio quantifies the ability of operational amplifiers (op-amps) to reject common-mode...

