Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0451641 (urolithiasis)
 3,973 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The holmium laser has established an important role in urology, particularly in the treatment of benign prostatic hyperplasia (BPH) and urolithiasis. Its light (wavelength 2140 nm) has a high coefficient of absorption in water, such that 95% of the laser energy is absorbed in 0.5 mm of water. Thus, the majority of the laser energy is contained superficially, imparting the holmium laser with excellent cutting and tissue ablation properties. It provides sharp incision with simultaneous hemostasis. Perhaps the most significant benefit of the holmium laser is its versatility when delivered through rigid or flexible endoscopes using quartz fibers of various sizes. We present the use of this laser in the ablation of an intravesical ureterocele with calculus.
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PMID:Case report: holmium laser resection and lasertripsy for intravesical ureterocele with calculus. 1150 Aug 68

We studied 51 patients with true ureterocele (primarily, orthotopic and unilateral--84.3 and 82.3%, respectively) combined with urolithiasis. Mean age of the patients was 41.9 +/- 2.0 years, size of ureterocele--20.7 +/- 1.3 mm and mean concrement area--1.4 +/- 0.2 cm2. In adult patients with orthotopic or heterotopic disease surgery consisted of perforation (n = 5) or dissection of ureterocele wall (n = 38). Endoscopic operations were indicated in small and middle sized ureterocele (less than 30 mm in size), unaffected contractility of terminal ureter, moderate urodynamic disorders of the upper urinary tracts, normal function of the kidney and no pyelonephritis exacerbation. Endoscopic section of ureterocele wall combined with ureterolithoextraction (n = 26), contact ureterolithotripsy using Ho:YAG laser or ultrasound (n = 19). Open surgery (ureterocystoneostomy by Politano-Leadbetter was made in orthotopic ureterocele over 30 mm in size and in marked urodynamic disturbances of the upper urinary tracts (n = 6). At discharge, a complete elimination of the stones in ureterocele patients was 81.6%. Effective use of extracorporeal shock-wave lithotripsy of nephroliths within 2 months after removal of ureterocele raised this percent to 87.7. Thus, choice of surgical policy in ureterocele complicated by urolithiasis depends on its size, variant of combination of this defect with the concrement, anatomofunctional state of the upper and lower urinary tracts, age of the patient and presence of pyelonephritis.
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PMID:[Ureterocele and urolithiasis]. 1502 44

Ten clinical cases of neuromuscular dysplasia of the ureter (NMDU) are reported. Eight patients were young (24-38 years), two--of the middle age (41-58 years). NMDU was bilateral in two patients. Ureteral achalasia of the congenital solitary kidney occured in one case. One 28-year-old female with megaureter of the solitary kidney had interstitial cystitis. Clinical picture of the disease was characterized primarily with acute pyelonephritis, pain and secondary urolithiasis. Surgical treatment consisted in resection of the affected part of the ureter with modeling of the lumen of the latter on the drainage and Boari plastic repair. Bilateral Boari operation was made in 2 patients. In one case of ureteral achalasia and ureterocele direct ureterocystoanastomosis was created with good result. Sigmocystoplasty with transplantation of the solitary kidney ureter into the intestinal transplant was made in the patient with scar contracture of the detrusor and megaureter. Functional result of the operation was good. Complications were registered in 4 patients, 2 of which were reoperated. In nine patients of ten good and satisfactory functional results were obtained.
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PMID:[Surgical treatment of neuromuscular dysplasia of the ureter]. 1609 12