Interventional studies are designed specifically to test the impact of a treatment or management strategy on an outcome of interest. In this article, we will highlight two viewpoints regarding the role of small or single-institution prospective interventional studies within the field of thoracic surgery: first, that these studies are beneficial and can positively impact the field, and second, that these studies can have such significant limitations that they may have no meaningful impact. We will also review elements that can make for successful design and execution of small prospective interventional studies.
Keywords: Prospective studies; small trials; thoracic surgery.