Effect of irrigation solution temperature on complications of percutaneous nephrolithotomy: a systematic review of the literature, meta-analysis and trial sequential analysis of randomized clinical trials.

Introduction: The optimal temperature of irrigation solution in patients undergoing PCNL is still unclear. Accordingly, this study aims to investigate the effects of different irrigation solution temperatures (cold/room temperature irrigation fluid versus warm/body temperature fluid). Our primary endpoint was hypothermia rate.

Study of biphasic calcium phosphate (BCP) ceramics of tilapia fish bones by age.

Biphasic calcium phosphate (BCP), consisting of bioceramics such as HAp + β-TCP and Ca(PO)(OH) + Ca(PO), is a popular choice for optimizing performance due to its superior biological reabsorption and osseointegration. In this study, BCP was produced by calcining the bones of tilapia fish (Oreochromis niloticus) reared in net cages and slaughtered at an age ranging from 15 to 420 days. The bones were cleaned and dried, calcined at 900 °C for 8 h, and then subjected to high-energy grinding for 3 h to produce BCP powders.

PCNL vs. two staged RIRS for kidney stones greater than 20 mm: systematic review, meta-analysis, and trial sequential analysis.

Introduction: Percutaneous nephrolithotomy (PCNL) is considered the gold standard treatment for kidney stones greater than 20 mm. However, retrograde intrarenal surgery (RIRS) may achieve the same stone-free rate with repeated procedures, and potentially fewer complications. This study aimed to compare the efficacy and safety of PCNL and two-staged RIRS.

In vivo evaluation of interactions between biphasic calcium phosphate (BCP)-niobium pentoxide (NbO) nanocomposite and tissues using a rat critical-size calvarial defect model.

Natural or synthetic biomaterials are increasingly being used to support bone tissue repair or substitution. The combination of natural calcium phosphates with biocompatible alloys is an important route towards the development of new biomaterials with bioperformance and mechanical responses to mimic those of human bones. This article evaluated the structural, physical, mechanical and biological properties of a new mechanical improved nanocomposite elaborated by association of fish biphasic calcium phosphate (BCP) and niobium pentoxide (NbO).

Quality of life in young adult patients treated for bladder exstrophy.

Introduction: Bladder exstrophy (BE) is a rare condition that requires complex surgical corrections to achieve the goals of bladder functionality, normal sexual function, continence, and finally cosmesis. The purpose of this study was to identify clinical parameters that predict better quality of life (QOL) scores using a validated questionnaire (SF-36) with young adults after completing surgical reconstruction.

Material And Methods: Forty-three young adults (mean age 22.

Robotic-assisted laparoscopic partial nephrectomy: initial experience in Brazil and a review of the literature.

Context And Purpose: Partial nephrectomy has become the standard of care for renal tumors less than 4 cm in diameter. Controversy still exists, however, regarding the best surgical approach, especially when minimally invasive techniques are taken into account. Robotic-assisted laparoscopic partial nephrectomy (RALPN) has emerged as a promising technique that helps surgeons achieve the standards of open partial nephrectomy care while offering a minimally invasive approach.

MMP-9 overexpression due to TIMP-1 and RECK underexpression is associated with prognosis in prostate cancer.

Background: Extracellular matrix homeostasis is strictly maintained by a coordinated balance between the expression of metalloproteinases (MMPs) and their inhibitors. The purpose of this study was to investigate whether the expression of MMP-9 and its specific inhibitors, TIMP-1 and RECK, are expressed in a reproducible, specific pattern and if the profiles are related to prognosis and clinical outcome in prostate cancer (PC).

Methods: MMP-9, TIMP-1, and RECK expression levels were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) in fresh-frozen malignant tissue specimens collected from 79 patients with clinically localized PC submitted to radical prostatectomy (RP).

Does training laparoscopic skills in a virtual reality simulator improve surgical performance?

Background And Purpose: Several different methods of teaching laparoscopic skills have been advocated, with virtual reality surgical simulation (VRSS) being the most popular. Its effectiveness in improving surgical performance is not a consensus yet, however. The purpose of this study was to determine whether practicing surgical skills in a virtual reality simulator results in improved surgical performance.

Reconstructive laparoscopy in pediatric urology.

Purpose Of Review: Minimally invasive surgery used to play a role only as a diagnostic tool in pediatric urology, being used in a narrow range of conditions like cryptorchidism. With the breakthrough of laparoscopic techniques, skilled surgeons and remarkably the advances in robotic-assisted surgery, laparoscopy has gained a role for treatment purposes in pediatric urology.

Recent Findings: Many reconstructive laparoscopic procedures notably with the aid of robotic-assisted surgery such as pyeloplasty and ureteral reimplantation and even more challenging procedures like appendicovesicostomy became feasible with similar results to those with open surgery.