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About

Dr. Tetsuji Maruyama is a pioneering pediatric urologist whose work centers on advancing minimally invasive surgical techniques for complex congenital and oncologic conditions in children. His major contributions lie in demonstrating the safety and efficacy of robot-assisted procedures for the youngest and most challenging patients. Notably, his 2016 study on robot-assisted laparoscopic pyeloplasty provided a critical comparison between pediatric and adult outcomes, establishing a benchmark for the field and garnering 8 citations. Dr. Maruyama has also been at the forefront of applying robotic technology to rare and high-stakes cases, such as robot-assisted radical cystectomy for pediatric bladder rhabdomyosarcoma, a procedure that pushes the boundaries of what is possible in pediatric oncology. His innovative work extends to novel reconstructive techniques, including a transvesicoscopic method for reimplanting ectopic ureters in duplex kidneys, offering a minimally invasive alternative to traditional open surgery. More recently, he has investigated the use of ureteral illuminating catheters to overcome the challenge of adhesive ureters in reconstruction, and he has analyzed factors influencing reflux resolution in laparoscopic and robotic surgery. Through these efforts, Dr. Maruyama is steadily building a legacy as a surgeon who expands the frontier of robotic urology for children.