Meta-analysis of the Effect of Treatment Strategies for Nephrosplenic Entrapment of the Large Colon.

The research looks into various treatment methods for a condition known as nephrosplenic entrapment (a common cause of colic in horses) and assesses their efficacy through a procedure called ‘meta-analysis of non-randomized studies’. The study doesn’t find any particular treatment strategy more effective than the others, though it does caution that the results should be applied with discretion due to the lack of randomized trials.

Research Methodology

• The researchers conducted a comprehensive review of literature from 1970 to 2017 on nephrosplenic entrapment.
• The inclusion criteria for these studies were that they needed to be retrospective studies involving horses with confirmed and suspected cases of nephrosplenic entrapment.
• A meta-analysis was performed using a random effects model. The effect size was determined using an odds ratio (OR) and the confidence intervals were set at 95%.
• The study defined statistical significance as P < .05.
• Out of 84 peer-reviewed publications, 19 relevant studies were included in the analysis.

Findings

• The meta-analysis revealed that the type of therapy, medical or surgical, did not significantly impact survival outcomes.
• Horses treated with the rolling technique were not more likely to recover with the help of medical management than those treated via jogging.
• Patients treated with phenylephrine (a decongestant used to relieve stuffy nose and sinus congestion) were not more likely to show medical improvement than patients who did not receive the treatment. This was consistent whether all medical treatment methods were considered or when rolling under general anesthesia was used.

Conclusions

• The choice of treatment strategy, whether medical or surgical, does not appear to impact the chances of resolving nephrosplenic entrapment.
• Despite these results, the researchers advise us to approach this conclusion with caution due to a lack of randomized trials, underscoring that appropriate case selection is still vital.