Dear Editor,

Incidence and prevalence of kidney stones are steadily rising throughout the world [1]. The stone disease is often recurrent, and management represent a significant cost burden to society [2]. Due to the extreme diversity of the disease, a personalized stone approach (PSA) is mandatory to achieve the highest standard of care. In this perspective intracorporeal lithotripsy devices have proven to be key players. Technological developments in the field has been dramatic during recent years and has to a large extent ‘driven’ clinical activity; however, high level of evidence for different treatment approaches is still lacking. Owing to the fact that stone disease is so variable, randomized controlled trials are very difficult to establish in a clinically meaningful context. The surgical treatment itself is variable and hard to standardize. Furthermore, patients have their own idea about best treatment; and so do surgeons—so true randomization is nearly impossible [3]. Therefore, according to the framework of evidence based medicine (EBM) it is highly important from a scientific point of view to evaluate the balance between level of evidence, clinical expertise and patient’s preferences and expectations in this demanding field. In this context sharing knowledge on clinical practices—tips and tricks—between practicing stone clinicians becomes especially important, and the most effective way that tips and tricks may be lifted up into an academic sphere is through international knowledge exchange. To embrace these important aspects of EBM in endoscopic stone management with particular focus on the rapidly growing area within technologies for intracorporeal lithotripsy, we invited 25 international experts in kidney stone management to participate in “Consultation on kidney stones: aspects of intracorporeal lithotripsy” [4]. The meeting took place at the Moltke’s Palace in Copenhagen, Denmark, in September 2019. This was the second edition of Scandinavian endourology consultations (SEC); the first dealing with upper tract urothelial carcinoma (UTUC) was published in a series of papers in World Journal of Urology [4].

The experts were assigned different topics within the field. They prepared presentations according to the standards for a scoping review by scanning the literature using Pubmed, Embase, and Web of Science. The meeting extended over 2 days, where the first day was a closed meeting for the experts, where all presentations were presented, discussed, challenged, and adjusted accordingly. The second day was an open meeting, where the adjusted presentations were presented and discussed to an international audience.

Conclusion drawn from the meeting was that the evolution of different intracorporeal techniques has increased the possibilities of a personalized stone approach (PSA). The challenging task for the future is to address PSA from a scientifically sound EBM perspective, since ultimately use of technology and tips and tricks need to be evidence based. When asking questions about therapy we should try to avoid the non-scientific approaches, since these routinely lead to false positive conclusions about efficacy [5].

The meeting has resulted in two review papers on intracorporeal lithotripsy in percutaneous nephrolithotomy [6] and flexible ureteroscopy [7]; as well as six [8,9,10,11,12,13] original papers, published in this issue on the topic.