Spontaneous rupture of the renal pelvis caused by upper urinary tract obstruction: A case report and review of the literature.

Rationale: Spontaneous renal rupture is rupture of the renal parenchyma, collecting system, or renal blood vessel, which often occurs in pathological kidney and is clinically less common. Postoperative long-term renal rupture is rarely reported in flexible ureteroscopy treatment of calculus in the upper urinary tract.

Patient Concerns: A 58-year-old man complained of right lower abdominal pain with hematuria for 3 hours after flexible ureteroscopy, combined with holmium laser lithotripsy of right renal calculi was performed 1 month ago.

The dose-dependence biological effect of laser fluence on rabbit fibroblasts derived from urethral scar.

Two-micrometer laser vaporization resection has been used in clinic for years, but some patients received the treatment are still faced with excessive and abnormal wound repair which leads to the recurrent of urethral stricture eventually. Fibroblasts play a key role in the processes of "narrow-expansion/operation-restenosis" recurring problems. Here, we investigated the effect of laser fluence biomodulation on urethral scar fibroblasts as well as the underlying mechanism.

Engineering of pre-vascularized urethral patch with muscle flaps and hypoxia-activated hUCMSCs improves its therapeutic outcome.

Tissue engineering has brought new hopes for urethral reconstruction. However, the absence of pre-vascularization and the subsequent degradation of materials often lead to the failure of in vivo application. In this study, with the assistance of hypoxia-activated human umbilical cord mesenchymal stem cells (hUCMSCs), pedicled muscle flaps were used as materials and pre-incubated in ventral penile subcutaneous cavity of rabbit for 3 weeks to prepare a pre-vascularized urethral construct.

[5-year follow-up to transurethral vaporesection of the prostate using the 2 micron continuous wave laser for the treatment of benign prostatic hyperplasia].

Objective: To summarize the 5-year follow-up to 2 micron continuous wave laser vaporesection for the treatment of patients with low urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH), and evaluate the safety and clinical effects of the treatment.

Methods: From October 2006 to September 2007, 236 cases with low urinary tract symptom secondary to BPH were treated transurethrally under epidural or general anesthesia using the 70 Watt 2 micron laser system. Vaporesection of the prostate was performed with the traditional "U" or the "dividing" method.

Clinical study on the application of a 2-m continuous wave laser in transurethral vaporesection of the prostate.

The present study aimed to evaluate the method and clinical effects of transurethral dividing vaporesection of the prostate in the management of benign prostatic hyperplasia (BPH) using the RevoIix 70 W 2-m continuous wave (cw) laser. A total of 155 BPH patients were treated transurethrally under epidural or sacral anesthesia using the dividing vaporesection technique. Of these, 80 had a prostate volume of ≤80 ml and 75 had a prostate volume of >80 ml.

[Transurethral partial cystectomy with a 2 micron laser in diagnosis and treatment for bladder submucosal lesions in adults].

Objective: To investigate the characteristics of transurethral partial cystectomy with a 2 µm laser in diagnosis and treatment for the bladder submucosal lesions in adults.

Methods: Nine patients with suspected pathological diagnosed bladder submucosal lesions in out-patient department were diagnosed and treated transurethral with a 2 µm laser under sacral block between August 2009 and December 2010. The diameters of tumors were 1.

Transurethral dividing vaporesection for the treatment of large volume benign prostatic hyperplasia using 2 micron continuous wave laser.

Background: The safety and efficiency of transurethral laser resection of the prostate to treat benign prostatic hyperplasia have been verified. However, this method does still not manage large volume prostates efficiently. To tackle this problem, we have designed a method of "transurethral dividing vaporesection of prostate" using a 2 micron continuous wave laser.

In vitro study on the vaporization ratio of 2-microm laser in human prostatic tissue.

In this study, the vaporization ratio of the 2-mum laser in the prostatic tissue with benign prostatic hyperplasia was examined in vitro, to explore a technique to estimate the clearance rate of prostatic tissue during the transurethral vaporesection of the prostate. A total of 9 fresh prostatic tissue specimens were obtained by open surgery and the wet weight of the prostatic tissue were measured immediately after the sample collection. Under the simulated conditions of transurethral vaporesection of the prostate by 2-microm laser, each prostate gland was completely vaporesected into fragments with a diameter of less than 1.

[An ex vivo study on the vaporization ratio of the prostatic tissue lased by the 2 micron laser].

Objectives: To observe the vaporesection efficiency of the 2 micron laser to the prostatic gland in benign prostatic hyperplasia, and investigate the method of estimating the amount of the vaporesected prostatic tissues during transurethral vaporesection of the prostate using the 2 micron laser system in the treatment of benign prostatic hyperplasia.

Methods: Total 9 fresh prostatic gland specimens were obtained from patients with BPH under open surgical procedures, and vaporesected under a simulated transurethral environment with the 2 micron laser system immediately after weighted. Energies and time consumptions were noted, collections of vaporesected tissue specimens and the remnants of the prostatic glands were weighted after the procedures.

[Analyze the change of bladder tumor cells in irrigating solution after partial cystectomy by 2 microm continuous wave laser].

Objective: To summarize the change of bladder tumor cells in irrigating solution after partial cystectomy by 2 microm continuous wave laser.

Methods: From May 2008 to December 2008, a total of 30 patients of bladder cancer, the diameters of tumors from 0.5 to 3.