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Query: UMLS:C0451641 (urolithiasis)
 3,973 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A retrospective study of childhood urolithiasis was performed from July 1978 to December 1989 in the National Taiwan University Hospital. During the eleven years, fourteen patients aged from 1 to 16 years were enrolled. The male to female ratio was 10:4, but no sex predilection was found in seven children with bladder stone(s) (M:F = 4:3), Hematuria and pyuria were the commonest symptoms and signs. Bladder stone was the most frequently encountered stone while renal stone was the second. The underlying factors included urinary tract anomalies, and surgical intervention of the urinary tract and trauma. Proteus species was the most common bacterium isolated from the urine of stone patients. However, half of the patients' urine specimens were sterile. Calcium oxalate and struvite were the two main components of the stones irrespective of renal, ureteral, or bladder stone origin. Lithotomy, endourological removal, and extracorporeal shock wave lithotripsy were the major therapeutic procedures, but the last procedure might replace the others.
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PMID:Urolithiasis in children. 206 81

Bladder paralysis and sabulous urolithiasis were diagnosed in 10 horses with urinary incontinence. Additional neurological deficits in the hindquarters were detected in five of them. Treatment by catheter drainage and bladder lavage was unsuccessful, and all the horses were destroyed within 14 months of presentation. Neuritis of the cauda equina was diagnosed post mortem in one horse, but the cause of the paralysis was not identified in the others, although radiography revealed abnormal lumbosacral vertebral angulation in one case.
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PMID:Ten cases of bladder paralysis associated with sabulous urolithiasis in horses. 221 31

Transabdominal ultrasound is superior to excretory urography when radiographic imaging of the urinary tract is indicated in patients with prostatism. We studied 53 patients with excretory urography and ultrasonography before prostatectomy. Patients with a history of microscopic or macroscopic hematuria, urolithiasis, renal failure or upper urinary tract anomalies were excluded from our study. Ultrasonography proved to be more accurate in defining prostatic size and configuration. Bladder wall thickness also was quantified more clearly with ultrasonography. We found 17 renal masses incidentally with excretory urography, although ultrasound was essential and superior to excretory urography in defining these masses in each case. We recommend that ultrasonography be used in lieu of excretory urography when imaging of the urinary tract is indicated before prostatectomy.
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PMID:Transabdominal ultrasound versus excretory urography in preoperative evaluation of patients with prostatism. 243 31

A yearling Holstein heifer was admitted with abdominal pain and bilateral, ventral abdominal distention. Bladder rupture was diagnosed by abdominocentesis and endoscopy. Correction of metabolic derangements was accomplished by volume diuresis, with maintenance of a urethral catheter before surgical repair of the bladder. The cause of the bladder rupture was believed to be related to adhesions resulting from previous surgery for urachal abscessation. Bladder rupture, which usually occurs in bulls or steers secondary to urolithiasis or in cows after dystocia, also should be considered in prepartum heifers with dehydration, abdominal pain, and abdominal distention.
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PMID:Ruptured urinary bladder in a heifer. 401 91

Out of a regional traumatic spinal cord injury population consisting of 379 individuals, 353 (93.1%) participated in the present study. Subjects were individually interviewed using semi-structured protocols. In addition, previous medical records were available for over 96% of subjects, and were used in all these cases to minimise recall bias. Cause of injury, prevalence of present medical symptoms and occurrence of medical complications in the post-acute, post-discharge phase were recorded. Neurological classification was verified by physical examination according to ASIA/IMSOP standards. Many subjects had experienced complications since discharge from initial hospitalisation, especially urinary tract infections, decubitus ulcers, urolithiasis, and neurological deterioration. Prevalence of medical symptoms was also high. More than 41% of subjects with spastic paralysis reported excessive spasticity to be associated with additional functional impairment and/or pain. Almost two-thirds of subjects reported significant pain, with a predominance of neurogenic-type pain. Bladder and bowel dysfunction were each rated by nearly 41% of subjects as a moderate to severe life problem. As expected, sexual dysfunction was also commonly reported. Prevalence of reported symptoms by general systems review was high, particularly fatigue, constipation, ankle oedema, joint and muscle problems, and disturbed sleep. However, lack of adequate normative data precludes comparison with the general population. The frequent occurrence of reported medical problems and complications support advocacy of comprehensive, life-long care for SCI patients. The commonly reported problems of neurogenic pain and neurological deterioration, in particular, require more attention, as these symptoms are not seldom ominous, either by virtue of their impact on quality of life, or because of underlying pathology.
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PMID:The Stockholm spinal cord injury study: 1. Medical problems in a regional SCI population. 764 55

Until recently urolithiasis in children following augmentation cystoplasty was an infrequently noted problem. We examined our 10-year experience and found urinary calculi to form in 52% of children and young adults undergoing augmentation cystoplasty. Calculi formed at a median interval of 24.5 months after surgery, predominantly in the lower tract. Urinary tract infection was a statistically significant risk factor, while the use of absorbable staples, intestinal mucus and hypocitraturia were also implicated. Calculus composition was primarily a mixture of apatite, struvite and ammonium urate. Bladder calculi were effectively managed endoscopically in the majority of cases without complication. Upper tract calculi presented an endourological challenge.
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PMID:Urolithiasis in children following augmentation cystoplasty. 832 34

The objective of the study was to describe the ultrasonographic findings of urinary bladder urolithiasis and to determine the diagnostic value of the technique in feline lower urinary tract diseases (LUTD). Physical examination of the urinary system and routine clinicopathological analysis of the blood and urine were performed on 32 cats presented with clinical symptoms of LUTD. Cystosonography was done on all of the cats, while plain radiography was performed on 8 and double contrast cystography on 2 cats. Sonography of the bladder provided the following diagnoses: urolithiasis and chronic cystitis: 24 cases, chronic cystitis without urolithiasis: 4 cases, bladder neoplasm: 1 case, negative sonographic finding: 3 cases. Bladder calculi and/or plugs were diagnosed easily, up to a size of 2 mm, according to acoustic shadowing and/or reverberation and gravitation. When the bladder was empty, it was filled up with physiologic saline solution to visualise its contents more easily. Sonography proved to be a useful technique for diagnosing urinary bladder calculi and/or plugs even when they were radiolucent and for distinguishing among the different causes of LUTD. Although ultrasonography is a valuable diagnostic tool, radiography is still necessary to explore lower urinary tract diseases, especially when cystosonography provides negative results or urethral obstruction is suspected.
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PMID:Ultrasonographic study of feline lower urinary tract diseases: 32 cases. 955 16

To study prospectively the risk factors and etiology of urolithiasis in all stone patients aged <15 years admitted from 1991 to 1999 to the Arabkir hospital in Yerevan. Stones were obtained by surgery (64%), extracorporeal shockwave lithotripsy (ESWL) (7%) or cystoscopic extraction (4%); 25% passed spontaneously. All were examined by infrared spectroscopy, and spot urines were analyzed chemically. 198 patients, 180 (68% males) with renal stones and 18 (83% males) with primary bladder stones, were studied. Calcium oxalate (CaOx) was the predominant constituent in 62% of the kidney stones, followed by struvite (17%), calcium phosphate (7%), uric acid (7%), ammonium acid urate (5%), and cystine (2%). Bladder stones contained CaOx in 72%, uric acid in 22% and ammonium acid urate in 6% of patients. Etiology was obviously metabolic in 5% and possibly metabolic in 26%. Twenty percent of stones were infectious, and 19% were endemic (9% bladder and 10% kidney stones); 4% were secondary to urinary stasis with malformation but no infection. Etiology in 26% remained unknown. Stone composition and metabolic etiology are similar to that in central Europe and North America. In contrast, infectious calculi and particularly endemic stones are still common, although becoming less so now. Urolithiasis in Armenia thus reflects the transition from a rural to an urban society.
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PMID:Pediatric urolithiasis in Armenia: a study of 198 patients observed from 1991 to 1999. 1151 87

A 17-year-old gelding was evaluated because of dysuria, inappetence, and weight loss. Cystoscopy revealed severe mucosal ecchymoses with luminal hemorrhage and accumulations of crystalloid sludge. Analysis of a urine sample revealed isosthenuria, an alkaline pH, pyuria, hematuria, bacteriuria, and numerous calcium carbonate crystals. Histologic examination of bladder mucosa biopsy specimens revealed severe neutrophilic infiltration with mineralization. A diagnosis of encrusted cystitis exacerbated by sabulous urolithiasis was made. A Corynebacterium sp susceptible to penicillin, sulfonamide, and enrofloxacin was cultured from the urine and the bladder mucosa biopsy specimens. The horse was treated with penicillin G potassium, IV, for 5 days, followed by trimethoprim-sulfamethoxazole for 4 weeks. Bladder lavage was performed daily for the first 3 days with a balanced electrolyte solution and dimethyl sulfoxide in an attempt to aid expulsion of necrotic debris and crystalline sludge from the bladder. Molecular phylogenetic analysis based on the 16S rDNA gene sequence was used to identify the isolate and determine its phylogenetic position. Results indicated that the isolate was closely related to Corynebacterium matruchotii. To our knowledge, encrusted cystitis secondary to C matruchotii has not been previously identified in a horse.
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PMID:Encrusted cystitis secondary to Corynebacterium matruchotii infection in a horse. 1570 76

The aim of the study was to describe clinical cases of childhood bladder stones and associated risk factors. Forty children (9 girls), aged 1-14-years old, (means 4.7 +/- 0.5 years), who underwent surgical stone removal in the Saravane Provincial Hospital during a 13-month period, were included. Bladder stone removal accounted for 55% of all surgical procedures performed on children. Most frequent symptoms were impaired micturition (97%) and acute urinary retention (32%). Body mass index was low, at < 18.5 in 92% of all cases, indicating serious associated malnutrition. Parental interviews disclosed a history of recent episodes of diarrhea (> 3 episodes in the previous year), recurrent urinary tract infection, and familial urolithiasis, in 60, 32, and 27% of patients, respectively. All children had been or were being breastfed, but 72% of the mothers introduced white rice into their children' diet as early as the first week of life, while 85% of them used to vary the food regimen (introducing meat, fish, fruit and vegetables) only after 1 year of age. This preliminary study suggests that the morbidity and social cost of childhood bladder stones may be high. A larger scale prospective and comparative study assessing their incidence and associated nutritional factors is warranted and feasible, and may lead to preventive measures.
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PMID:Bladder stones in childhood: a descriptive study in a rural setting in Saravan Province, Lao PDR. 1590 34


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