Randomized studies in endoscopic surgery--where is the proof?

We have attempted to review the best available evidence for the commonest gynaecological endoscopic procedures. Controlled studies are the exception rather than the rule, and randomized studies are even rarer. Therefore, the results of large, uncontrolled series must be acknowledged. As a result, for most procedures, sufficient information is now available regarding indications, efficacy, and complications to determine their role in routine clinical practice.