Background: Systematic reviews evaluating the beneﬁts and harms of surgical interventions are an example for non-pharmacological complex interventions focusing on speciﬁc methodological and clinical challenges. Data extraction of eligible studies is an essential step and therefore validated tools are a prerequisite. This study gives an example of the development of a data extraction sheet for surgical interventions. Methods: The Cochrane Handbook (chapter 7.6) recommends pilot testing of data extraction sheets on a representative sample of studies to be reviewed. Therefore a team of two reviewers and one biostatistician developed a draft of an extraction sheet for the evaluation of energized devices in thyroidal surgery. Results: Two checklists are of importance for the evaluation of surgical interventions: QUORUM and CONSORT for non-pharmacological interventions (CLEAR NPT). The structure of a data extraction sheet for a surgical review therefore includes in general: basic items (study name, publication year, journal, country, funding); study design (randomization, number of participating centres, number of treatment arms, blinding, allocation concealment, study duration); participants (inclusion and exclusion criteria, sample size, baseline data such as age, gender, BMI, etc.); interventions (intervention groups, surgical experience, learning curves); outcomes (primary endpoints, secondary endpoints); and notes (further comments of the review authors). Conclusions: Both checklists allow a critical appraisal of the included studies focusing on internal and external validity and are essential for the interpretation of the analyzed data. We present the development of our extraction sheet, its modiﬁcation after piloting and our general recommendations for reviews focusing on surgical interventions.
Energized devices in thyroideal surgery: an example of a standardized data extraction sheet for surgical systematic reviews
More like this
- How effects on health equity are assessed in systematic reviews of interventions: a Cochrane methodology systematic review
- Geographic distribution of trials in Cochrane systematic reviews
- An exploratory analysis of lumping and splitting in systematic reviews
- Recommendations for the development, piloting and use of data extraction sheets in systematic reviews: a review of methodological guidance
- Thorough Debridement Reduces Infection Rates in Open Fracture Care Not Time to Index Surgery: Addressing the Global Commission of Surgery’s Call to Improve Care for the Bellwether Procedures A Systematic Review and Meta-analysis of Observational Studies