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To investigate the relationship between diabetes and metformin use with outcomes after radical prostatectomy (RP) for clinically localized cancer.A total of 112 diabetic metformin users and 98 diabetic non–metformin users treated with RP from 1990 to 2009 were identified. Nondiabetic controls were match using their 5-year risk of biochemical recurrence (BCR) as calculated by the preoperative Kattan...
To report on various perioperative and short-term clinical outcomes of 7 patients who underwent cryoablation of multiple renal lesions during the same operative setting. Cryotherapy is the most well studied minimally invasive ablative technique for the treatment of renal tumors.A retrospective analysis of our institutional renal cryotherapy database yielded a total of 7 patients who underwent synchronous...
The reference standard treatment for transitional cell carcinoma (TCC) of the upper tract remains nephroureterectomy. However, with improvements in endoscopic technology and techniques, endoscopic ablation of upper tract TCC has become a reality for highly selected patients. We report our present technique and 16-year experience of office-based ureteroscopy for surveillance of TCC after initial endoscopic...
To evaluate a novel prototype self-anchoring suture (SAS) material that incorporates unidirectional “barbs” designed to grip and approximate tissue without the need for suture ligation for urinary tract reconstructive procedures. The in vitro failure strength of various porcine tissue approximations with SAS was compared with the strength of similar approximations with standard ligated suture....
To compare the mechanical and clinical performance of new and reprocessed harmonic scalpels (HS). A total of 89 reprocessed and 90 new HS (laparoscopic coagulating shears with a curved blade and 5-mm-diameter shaft) were subjected to visual inspection, destructive testing, and nondestructive mechanical testing. Subsequently, new HS, randomly selected reprocessed HS, and selected reprocessed HS...
To evaluate the feasibility of selective segmental artery clamping during partial nephrectomy. Precise extraparenchymal renal hilar dissection was performed on 73 fixed cadaveric kidneys. The surgical accessibility to clamping of each presegmental and segmental artery from the anterior and posterior approaches was determined on the basis of vessel length, position within the renal hilum, and degree...
To report the development of a novel, simple-to-use method for laparoscopic deployment of fine-quality saline ice slush by way of a 10-mm end-effector for laparoscopic parenchymal hypothermia. A mechanism for making fine ice slush was created, and a 10-mm laparoscopic end-effector was designed and constructed for deployment of the ice slush. The novel ice slush deployment system was tested in a...
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