RESUMEN
INTRODUCTION: Lymphadenectomy (LND) has recently attracted considerable interest from urological surgeons, as extended lymphadenectomy might have a role in accurate staging or improving patient survival in those patients with urological malignancies. Upper tract urothelial carcinoma (UTUC) is a relatively rare neoplasm, accounting for about 5% of all urothelial cancers. Up to 30% of patients with muscle-invasive UTUC have metastasis in the regional lymph nodes (LNs), which represents a well-established poor prognostic factor. MATERIAL AND METHODS: A medline search was conducted to identify original articles and review articles addressing the role of lymphadenectomy LND in UTUC. Keywords included lymphadenectomy, lymph node excision, nephroureterectomy, and upper tract urothelial carcinoma. RESULTS: LND instead of lymphadenectomy has recently attracted considerable interest from urological surgeons and might have a potential role in improving the oncological outcome in patients with urothelial carcinoma. LND ideally improves disease staging; thereby, we need to find the way to identify the patients who could really benefit from adjuvant systemic theraphy. Template-based LND with Radical Nephroureterectomy (RNU) for high risk disease is gaining support based on accumulating retrospective data and supports its utility as a potentially therapeutic maneuver. RNU is still the gold standard treatment for UTUC, but minimal invasive procedures such as laparoscopic RNU and Robot Assisted Nephroureterectomy (RANU) are becoming more employed in recent years and should be used by expert hands. CONCLUSIONS: Therapeutic benefits of LND and nodal status on disease free survival (DFS) and Cancer Free Survival (CSS) remains controversial. Although most of the data comes from retrospective studies, we encourage performing well designed, prospective, and multicentre studies to clarify this in the coming years.
RESUMEN
INTRODUCTION: We have performed laparoscopic pyeloplasty (LP) in our department since 2004. Our goal is to describe, step by step, the approach of kidney stones during transperitoneal laparoscopic pyeloplasty and the outcomes after the procedure. MATERIAL AND METHODS: Twelve patients with kidney stones treated by transperitoneal laparoscopic pyeloplasty were found. The hospital records with clinical features, supplementary tests, and imaging studies were reviewed for demographic, procedural, and efficacy data. RESULTS: Kidney stones were found in 12 of 62 patients (19%) who had undergone transperitoneal laparoscopic pyeloplasty. Eight cases were treated using a flexible cystoscope and a nitinol N-Circle basket; in the remaining four cases the stones were extracted using laparoscopic grasping instruments. We want to emphasize a case of horseshoe kidney associated with ureteropelvic junction (UPJ) obstruction and a kidney stone in which the procedure was performed successfully. CONCLUSIONS: Laparoscopic pyeloplasty has now emerged as a standard approach to UPJ obstruction. Associated renal abnormalities or kidney stones add complexity to the procedure, however, as shown in our results, centers with experience in the laparoscopic approach of reconstructive urology make this technique feasible.
