Related Experiment Video
Updated: Mar 6, 2026

08:50
Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement
Published on: March 26, 2018
12.4K
[Comparison of the "Trigger" tool with the minimum basic data set for detecting adverse events in general surgery].
A I Pérez Zapata1, M Gutiérrez Samaniego2, E Rodríguez Cuéllar3
1Servicio de Cirugía General, Hospital Universitario Miguel Servet, Zaragoza, España.
Summary
The Trigger Tool (TT) significantly outperforms the Minimum Basic Data Set (MBDS) in detecting adverse events during general surgery. This study highlights the TT
Area of Science:
- Healthcare quality improvement
- Patient safety research
- Surgical outcomes analysis
Background:
- Surgery presents a high risk for adverse events (AE).
- Accurate detection of AE is crucial for improving patient safety.
- Existing methods like the MBDS may underestimate AE occurrence.
Purpose of the Study:
- To compare the effectiveness of the Trigger Tool (TT) against the Hospital National Health System's Minimum Basic Data Set (MBDS) in identifying AE.
- To assess AE detection rates in general surgery patients.
- To evaluate the discriminatory power of both detection methods.
Main Methods:
- Retrospective observational study of 2012 general surgery patients.
- AE identification using an adapted Global Trigger Tool (TT) methodology and MBDS data.
- Classification of AE by damage and avoidability.
- ROC curve analysis and Hanley-McNeil test for tool comparison.
Main Results:
- AE prevalence was 36.8%.
- The TT detected 89.9% of AE, significantly higher than MBDS at 28.48%.
- TT demonstrated superior discriminatory power (AUC 0.89 vs. 0.66 for MBDS), with statistically significant differences (P<.001).
Conclusions:
- The Trigger Tool is substantially more effective, detecting three times more adverse events than the MBDS registry.
- The prevalence of AE in general surgery is higher than previously estimated.
- Implementing the TT can lead to more comprehensive patient safety monitoring in surgical settings.
Related Concept Videos
Comparing the Survival Analysis of Two or More Groups
677
Survival analysis is a cornerstone of medical research, used to evaluate the time until an event of interest occurs, such as death, disease recurrence, or recovery. Unlike standard statistical methods, survival analysis is particularly adept at handling censored data—instances where the event has not occurred for some participants by the end of the study or remains unobserved. To address these unique challenges, specialized techniques like the Kaplan-Meier estimator, log-rank test, and...
677
Hazard Ratio
664
The hazard ratio (HR) is a widely used measure in clinical trials to compare the risk of events, such as death or disease recurrence, between two groups over time. It reflects the ratio of hazard rates—the instantaneous risk of the event occurring—between a treatment group and a control group. This measure provides valuable insights into the relative effectiveness of a treatment by assessing how the risk of an event differs between the two groups.
For example, in a clinical trial...
For example, in a clinical trial...
664

