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

Some common conservative treating methods of urolithiasis are critically discussed. Based on physico-chemical relationships of solubility and cristallisation of stone-forming compounds our own methods of conservative treatment of urolithiasis is presented.
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PMID:[Conservative therapy of urolithiasis]. 46 70

An X-ray diffraction analysis of kidney stones from the bivalved mollusc Macrocallista nimbosa has revealed the calculi composition to be amorhpous calcium phosphate. The use of this animal for the study of urolithiasis is suggested because of the spatial and temporal ubiquity of its renal calculi.
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PMID:Analysis of renal calculi from a marine mollusc (Marcocallista nimbosa). Implications for the study of urolithiasis. 46 17

Some common conservative treating methods of urolithiasis are critically discussed. Based on physico-chemical relationships of solubility and cristallisation of stone-forming compounds our own methods of conservative treatment of urolithiasis is presented.
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PMID:[The conservative therapy of urolithiasis (author's transl)]. 47 52

The causes of, and physiopathological factors underlying the most common metabolic disorders implicated in the formation of renal stones are reviewed. These include hypercalciuria, hyperoxaluria, renal tubular acidosis, cystinuria and disturbances of purine metabolism. Apart from metabolic disorders the risk of stone formation is also influenced by a low inhibitor activity in urine. Though some aspects in the pathogenesis of urolithiasis remain uncertain, the exact knowlege of important aetiological factors of stone formation is the basis of correct treatment and the prevention of recurrence of urinary calculi.
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PMID:[The evaluation of patients with urinary calculi discloses disturbances of metabolism in 75% of all cases (author's transl)]. 47 69

Inborn hypouricemia due to isolated renal tubular defect is a rare disorder. Thus far eight documented families with this condition have been reported. In reviewing the data on these families, hyperuricosuria was found to be a constant associate of the hypouricemia, and hypercalciuria, mainly of the absorptive type, was frequently associated. Urolithiasis appears to be common. The mode of inheritance of this hypouricemia was autosomal, probably recessive. The magnitude of renal urate clearance and the effects on it of probenecid and pyrazinamide suggest the inborn renal hypouricemia to be of two types, due to defective re-secretory tubular urate reabsorption and to total defective tubular urate reabsorption. The question of the renal tubular abnormality for urate transport being the primary defect or secondary to an abnormal metabolite is discussed.
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PMID:Inborn hypouricemia due to isolated renal tubular defect. 47 67

The incidence of urolithiasis was registered in 87 patients with chronic inflammatory bowel disease and compared with that of renal oxalate excretion. All patients were studied while on a standardized diet with fixed amounts of fat, calcium, and oxalate. Pyelography had been performed in all. Nine, or 35%, of 26 hyperoxaluric patients had urolithiasis, compared with 14, or 23%, of 61 patients were normal renal oxalate excretion, the difference being statistically insignificant. No significant difference in urinary oxalate or urinary calcium in stone-formers as compared with non-stone-formers could be demonstrated. Oxalate was a more frequent component of calculi in patients with normal renal oxalate excretion than in patients with hyperoxalura. Thus, we were unable to demonstrate an increased incidence of urolithiasis in patients with hyperoxaluria compared with a control group with normal renal oxalate excretion. Our results cast doubt on the concept that enteric hyperoxaluria per se is the cause of stone diathesis in chronic inflammatory bowel disease.
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PMID:Urolithiasis and hyperoxaluria in chronic inflammatory bowel disease. 48 60

Urolithiasis is common throughout the Sudan with the exception of the southern region where it is rare. The latter region is cooler and decidedly more moist than the other provinces during the hot months of the year (May-October). In the northern provinces urolithiasis is commoner in areas with lower relative humidity.
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PMID:Urolithiasis in Sudan. Geographical distribution and the influence of climate. 48 75

In the present investigation in 515 carriers of nephroliths (311 males and 204 females) age, sex, type of constitution, body weight, physical load and blood pressure are set in relation to the various kinds of calculi. Here it was revealed that males more frequently fall ill with nephrolithiasis than females, that there exist certain age peaks, the pycnic typ of constitution preferredly appears in female carriers of calculi and the athletic type in male ones, the majority of all examined patients had in comparison to the normal an increased body weight, and a very large proportion of persons with only insignificant physical load is found among the carriers of calculi. The result of the relations of blood pressure was that only half of all patients with urolithiasis examined had a normotonic blood pressure.
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PMID:[Somatic parameters in patients with urinary calculi and their relationship to age, sex and kind of calculus]. 48 55

In a survey is described the inpatients suffering from urolithiasis of the urological clinic Berlin-Friedrichshain of the last three years from 1 April 1975 to 31 March 1978. Especially the cast calculi of the renal calyx were analysed and the therapeutic approach was discussed. For the complete removal of coral calculi in our clinic preoperatively made tomographies and adequate graphs of the cast concrement in its relation to the hollow system at two levels also stood the test as the intraoperative use of the X-ray device "Renodor". The two methods were described in detail. Also in multiple and movable concrements in the system of the renal calyx the Renodor stood the test. Here we could make good experiences also with the fibrin pyelolithothomy--the indications and results of these methods are represented.
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PMID:[Experiences with new methods for the preoperative localization and surgical removal of complicated kidney calculi]. 48 58

Investigations of fine changes of nephron elements in acute pyelonephritis against the background of urolithiasis in 19 patients and 43 rabbits showed the developing morphological lesions in the kidneys to be due to combined effect of the inflammatory and ischemic factors. The inflammation began with the development of serous oedema leading to destruction of tubular epithelium and impairment of urine passage. These lesions contributed to transformation of the serous inflammation into purulent one with formation of histolysis foci. The ischemic factor progressed with the advance of the inflammatory process and was aggravated by the development of foci of histolysis and hephrohydrosis and subsequently of vascular-parenchymatous block at the tubular level.
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PMID:[Morphogenesis of acute pyelonephritis (electron microscopic study)]. 48 84


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