Maosheng Xu

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Here, we report a new case of botryoid Wilms' tumor, a 4-year-old boy, who was referred to us with a chief complaint of dysuria and gross hematuria. The computed tomography and radical nephroureterectomy showed that a botryoid sarcoma-like appearance occupied the right renal pelvis and extended into the bladder. Histologic examination further confirmed this(More)
Insufficient angiogenesis is a common problem in bladder tissue engineering and is believed to be a major factor responsible for graft shrinkage. In this study, we investigated the use of bladder acellular matrix allografts (BAMAs) modified with vascular endothelial growth factor (VEGF)-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) for the(More)
Macroscopic evidence of contracture has been identified as a major issue during the regeneration process. We hypothesize that lack of angiogenesis is the primary cause of contracture and explore a nanomedicine approach to achieve sustained release of vascular endothelial growth factor (VEGF) to stimulate angiogenesis. We evaluate the efficacy of(More)
Graft contracture is a common problem associated with the regeneration processes of tissue-engineered bladders. Currently, most strategies used for incorporating bioactive molecules into biomaterial designs do not work during all phases of tissue regeneration. In this study, we used a growth factor-PLGA nanoparticle thermo-sensitive gel system (i.e., BAM(More)
A 17-month-old boy presented with a mild abnormal appearance of the foreskin and was enrolled into our department. The boy had one normal urethra, one accessory urethra originating from the bladder neck and opening into dorsal pennies, and one accessory urethra opening into glans penis but not communicating with the other two urethras. At surgery, the(More)
OBJECTIVE To evaluate changes in functional and morphological outcomes in children with prenatally diagnosed Society of Fetal Urology (SFU) grades 3-4 ureteropelvic junction obstruction (UPJO) who underwent pyeloplasty at different ages. We also examined the effect of surgical wait time on recovery of renal function. MATERIALS AND METHODS All patients(More)
To evaluate our clinical outcomes in managing acute kidney injury (AKI) resulting from ceftriaxone-induced urolithiasis with emergency treatment. From July 2008 to July 2013, a series of 15 patients including 12 males and 3 females were admitted to our center. The mean age of them was (4.76 ± 3.74) years. A chief complaint of anuria was presented in 12(More)
The study aims to evaluate the efficacy of transpubic access using a pedicle flap from the labia minora for urethral reconstruction in young girls with urethrovaginal fistula secondary to pelvic fracture. Between January 2011 and January 2016, 4 cases of traumatic urethrovaginal fistula in young girls were treated using a pedicle flap from the labia minora.(More)
INTRODUCTION We present a novel noncyctoscopic procedure in removing retained ureteral stents that requires minimal sedation and significantly reduces operation time and costs compared to the cystoscopy-based procedure. TECHNICAL CONSIDERATIONS We used a simple self-made device, which was made of an Fr5 feeding tube and a monofilament suture to remove the(More)
OBJECTIVE To discover the possible factor of the iatrogenic fibroepithelial polyps (FEPs). MATERIALS AND METHODS A retrospective chart review of 28 pediatric patients who have undergone pyeloplasties for ureteropelvic junction obstruction with pathologically proven FEPs was performed from January 2009 to June 2016 at our hospital. Among them, 6 patients(More)