Does sequential balloon expulsion test improve the screening of defecation disorders?

Physiological tests for defecation disorders are often expensive and not widely available. This limits their use in routine clinical settings. Prior research has shown that simpler tools like clinical scores and physical exams can be used to screen for bowel evacuation difficulties. However, the accuracy of these low-cost methods remains unclear. No prior work had resolved whether combining these tools improves diagnostic performance. That uncertainty drove this study to evaluate three screening tools for defecation disorders. The study aimed to determine if these tools could reliably detect bowel dysfunction in a primary care context. The focus was on constipated patients, as this group is most likely to benefit from early screening. The study also considered gender and age factors, as these are known to influence bowel function. The goal was to identify a cost-effective screening method that could be used in less specialized settings.

This study aimed to assess the diagnostic performance of three low-cost tools for identifying defecation disorders. The tools included a clinical score, a balloon expulsion test, and a digital rectal examination score. The researchers wanted to determine if these tools could be used alone or in combination to screen for bowel evacuation difficulties. The study focused on constipated patients, as they are at higher risk for defecation disorders. The researchers also wanted to evaluate a modified version of the balloon expulsion test with variable volume. The goal was to find a screening method that is both effective and accessible in primary care settings. The study was conducted in a tertiary hospital gastroenterology department. The researchers sought to compare the performance of these tools against established physiological diagnostic criteria.

The study was a prospective evaluation of three screening tools for defecation disorders. The tools included a clinical score, a balloon expulsion test (BET), and a digital rectal examination (DRE) score. Participants were constipated patients who underwent standard physiological tests for diagnosis. In addition, they completed the clinical score and underwent BET and DRE assessments. The BET was performed in two versions: standard and variable volume (VV). The researchers compared the performance of these tools using area under the curve (AUC) and predictive values. The study occurred between January 2015 and March 2019 at a tertiary hospital. The primary outcome was the diagnostic accuracy of each tool for detecting defecation disorders. The study also evaluated the impact of combining the tools on diagnostic performance.

The clinical DD score had an AUC of 0.417, suggesting limited diagnostic accuracy. The DRE score showed an AUC of 0.56, indicating moderate performance. The standard BET had a sensitivity of 86%, specificity of 58%, PPV of 57%, and NPV of 86%. The sequential VV BET followed by standard BET improved performance, with a sensitivity of 86%, specificity of 67%, PPV of 63%, and NPV of 87%. The sequential BET had an odds ratio of 8.942, with a p-value greater than 0.001. These results suggest the sequential BET is a strong predictor for DD screening. The study found that the sequential BET outperformed the standard BET in specificity and PPV. The variable volume approach added value to the diagnostic process. The results indicate that the sequential BET is a low-cost and effective screening method.

The study found that the sequential balloon expulsion test (BET) improved diagnostic performance for defecation disorders compared to the standard BET. The sequential BET had a higher specificity and PPV than the standard version. The clinical DD score and DRE score showed limited diagnostic accuracy. The researchers concluded that the sequential BET is a low-cost and effective screening tool for DD. The study supports the use of the sequential BET in primary care settings. The results suggest that variable volume BET enhances the diagnostic value of the test. The authors propose that the sequential BET can be used as a reliable alternative to more complex physiological tests. The study highlights the importance of optimizing screening methods for accessibility and cost-effectiveness.