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  • New chemolysis for urological calcium phosphate

    Cited by: 7
  • A Woman with Recurrent Calcium Phosphate Kidney

    Cited by: 27
  • Kidney stone analysis: “Give me your stone, I will tell ...

    位置: 8600 Rockville Pike, Bethesda, MD
  • Calcium Phosphate Composition Affects Ureteroscopic

    2017-5-11  Stones containing calcium phosphate are harder, demand more laser energy, and require a longer operating time. NCCT evaluation can estimate stone compo-sition preoperatively, and may be a useful tool for predicting operative outcomes. Key words:ureteroscopic lithotripsy, stone composition, calcium phosphate, radiodensity, complication

  • Kidney Stones Urology of Indiana

    2020-7-5  Of these, calcium oxalate is far more common. Pure calcium phosphate stones are rare, and usually indicate an underlying illness or metabolic disorder. The most common stone composition is actually a mixture of mostly calcium oxalate with a little bit of calcium phosphate. About 15% of kidney stones contain no calcium. These include uric acid ...

  • Chemical Composition of Kidney Stones - Why Be

    Calcium mineral combination stones cannot be dissolved with any known medicine. However kidney stones made up of uric acid are invisible to x-rays, but can sometimes be dissolved with the proper medications. Common Chemical Make Up: calcium phosphate (8%)

  • Calcium Phosphate Kidney Stones – Causes - Kidney

    2020-6-13  Causes Reasons for Calcium Phosphate Kidney Stones Concretion of mineral salts occurring in the kidneys lead to renal stone disease. Also known as nephrolithiasis in medical lingo, they originate as microscopic crystals developing into stones over a period of time. The kidneys are filtering organs of the human system. They generally perform the function []

  • Kidney Stones AACC.org

    Stone composition may change, however, due to treatment. For example, patients with cystine or uric acid stones may form stones composed of calcium phosphate as a result of overly aggressive alkali therapy. Numerous approaches are available to analyze kidney stones. Wet chemical analysis (WA) is the most widely employed technique.

  • Spectrum of Renal Stones Composition; Chemical

    2016-3-6  inant chemical composition in stones of 203 patients (87.5%). Uric acid, struvite and calcium phosphate were predominant in 15 (6.5%), 10 (4.3%) and 3 (1.29%) of stones respectively Table 1: Composition of Stones (n=232) Composition of stone # stones % Calcium Oxalate 89 38.36 Calcium Oxalate + Calcium Phosphate 37 15.9

  • Different Types of Kidney Stones

    Different Types of kidney stones are determined and classified according to their chemical compositions. The chemical composition of kidney stones is influenced, to a large extent, by diet, lifestyle habits, and hereditary factors. Once a patient has passed a kidney stone it is important for the stone to be analyzed, in order to determine its chemical composition.

  • UpToDate

    2020-4-20  Calcium oxalate can also be present in combination with uric acid or calcium phosphate. Because calcium oxalate stones typically grow on a Randall's plaque (composed of calcium phosphate) on the papillary tip , a laboratory that examines the composition of the nidus may report a stone with an eccentric calcium phosphate nidus (usually 5 percent ...

  • Calcium Phosphate Composition Affects Ureteroscopic

    2016-8-4  Stones containing calcium phosphate are harder, demand more laser energy, and require a longer operating time. NCCT evaluation can estimate stone compo-sition preoperatively, and may be a useful tool for predicting operative outcomes. Key words:ureteroscopic lithotripsy, stone composition, calcium phosphate, radiodensity, complication

  • Chemical analysis of stones and its significance in ...

    Calcium containing stones constituted the majority (76.9%), urate (16.3%), struvite constitutes (4.3%), xanthine (1.7%) and cystine (0.9%) . Gault M H and Chafe in Canadian population found phosphate stones were on average heavier and relatively more common in women, had an earlier age peak frequency in women than oxalate stones.

  • Calcium Phosphate Stone Morphology Can Reliably

    In contrast, the other stones of similar composition but different morphology were related to distal renal tubular acidosis in only 3.9% of cases. In addition, IVa2 stones were found in 65% of calcium phosphate stone formers associated with Sjögren syndrome and in 35% of calcium phosphate stones in patients with medullary sponge kidney.

  • Quantitative Analysis of Chemical Composition of ...

    2013-6-30  stones were classified according to their chemical composition as a mixed stones (MS), and examined using stone analysis set (chemical qualitative method) of calcium, magnesium, phosphate, uric acid and oxalate which was used reagent for qualitative determination of main individual components of stones.

  • Nephrolithiasis, stone composition, meteorology, and ...

    2018-4-5  a minority of stonesTable[ 3]. None of the stones was drug associated. Calcium phosphate stones occurred more commonly in females when compared to males (27.4% vs. 12.6%, P = 0.001). The rest of all chemical constituents occurred in analogous fashion across gender. There was no association between the chemical composition and seasons [Table 2].

  • Calcium phosphate Ca3(PO4)2 - PubChem

    Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. This agent can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium in the gastrointestinal (GI) tract.

  • The Composition and Structure of Stones in Enlarged ...

    system, the main chemical composition of calculi is calcium acid phosphate, followed by calcium carbonate, then calcium oxalate (Prasongwatana et al, 2008; Yasui et al, 2008; Mun˜oz-Velez et al, 2010). By XRD and FTIS analysis, 31 EPU stones in our research were all shown to be HAP crystal, also known as hydroxy calcium

  • Calcium oxalate CaC2O4 - PubChem

    CALCIUM OXALATE. 563-72-4. Ethanedioic acid, calcium salt (1:1) UNII-2612HC57YE. 25454-23-3

  • Composition Of Kidney Stones: Oxalate, Phosphate

    Kidney stones have different composition calcium oxalate calcium phosphate and uric acid. Depending upon composition it is easy to determine whether it is soft, rough and easy to detect during diagnosis.

  • Chemical analysis of stones and its significance in ...

    Calcium containing stones constituted the majority (76.9%), urate (16.3%), struvite constitutes (4.3%), xanthine (1.7%) and cystine (0.9%) . Gault M H and Chafe in Canadian population found phosphate stones were on average heavier and relatively more common in women, had an earlier age peak frequency in women than oxalate stones.

  • Calcium phosphate urinary stones: Prevalence,

    Download Citation Calcium phosphate urinary stones: Prevalence, composition and management This chapter provides a concise summary of the epidemiology, clinical significance, etiology, and ...

  • Chemical Composition of Urinary Calculi in North Jordan

    The incidence of calcium oxalate containing stones was predominant in both male and female patients (66.2 and 60.6%), followed by calcium phosphate and uric acid stones (17.0 and 19.7%), (12.6 and 13.9%), respectively. The relationship between age, sex and stone formation illustrates that urinary stones are most common in male than female ...

  • Chemical composition of urinary stones Competently

    Oksalatovye stones (from oxalic calcium), they account for up to 75% of the cases of stones formed by calcium salts. They are either small and smooth, or of large size (up to several centimeters) and have a large-scale surface. In the latter case, they have a complex chemical composition, with the oxalates forming only the surface layers.

  • Calcium phosphate calculi - LinkedIn SlideShare

    Calcium phosphate calculi 1. NUR FARRA NAJWA BINTI ABDUL AZIM 082015100035 CALCIUM PHOSPHATE CALCULI 2. OBJECTIVES At the end of the seminar, students should be able to List various type renal calculi List the frequency of each renal calculi Explain the etiology of calcium phosphate stone Describe the shape and colour of calcium phosphate stone

  • Structure and Composition of Non-Infectious Phosphate ...

    2013-12-24  Non-infectious calcium phosphate renal calculi, repre- senting around 10% of all renal stones [1], are composed of either biological hydroxyapatite (BHAP) alone (i.e., poorly crystalline calcium-deficient hydroxylapatite con- taining magnesium as a minor element), or also contain calcium oxalate monohydrate and/or dihydrate as a sec-

  • Calcium phosphate Ca3(PO4)2 - PubChem

    Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. This agent can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium in the gastrointestinal (GI) tract.

  • (PDF) Chemical composition of kidney stones

    In the 29 stones with lamellae of different type and/or group, the chemical composition of successive layers seemed to confirm the correlation between uric acid and oxalate, rather than phosphate ...

  • Kidney Stones Urology of Indiana

    2020-7-5  There are several different types of kidney stones, each with a different chemical composition. The vast majority of kidney stones contain calcium. Calcium stones are composed of calcium that is chemically bound to either oxalate (calcium oxalate stones) or phosphate (calcium phosphate stones). Of these, calcium oxalate is far more common.

  • Composition Of Kidney Stones: Oxalate, Phosphate

    Kidney stones have different composition calcium oxalate calcium phosphate and uric acid. Depending upon composition it is easy to determine whether it is soft, rough and easy to detect during diagnosis.

  • Chemical composition of urinary stones Competently

    Oksalatovye stones (from oxalic calcium), they account for up to 75% of the cases of stones formed by calcium salts. They are either small and smooth, or of large size (up to several centimeters) and have a large-scale surface. In the latter case, they have a complex chemical composition, with the oxalates forming only the surface layers.

  • Journal Home Page bbbulletin.org BRITISH

    2016-8-11  increasing age. The chemical composition of stone in Yemen is calcium-containing stones (oxalate, phosphate and carbonate) and uric acid stone that gives guide treatment and information that may prevent more stones from forming. Acknowledgements The authors would like to thank the director and staff of the National Center for

  • Aggregation of Calcium Phosphate and Oxalate

    2019-5-26  The majority of human kidney stones are comprised of multiple calcium oxalate monohydrate (COM) crystals encasing a calcium phosphate nucleus. The physiochemical mechanism of nephrolithiasis has not been well determined on the molecular level; this is crucial to the control and prevention of renal stone formation. This work investigates the role of phosphate ions on the formation of calcium ...

  • Prediction of the Chemical Composition of Urinary Calculi ...

    at ( 120 ) kV .All stones were analyzed by infrared spectroscopy to determine their chemical composition. Results : the calculi classified into groups according to their chemical composition .A total of 50 calculi ,include ( 34 ) pure stones[ (14 )uric acid (UA), ( 15 ) calcium oxalate monohydrate (COM), (5)

  • Kidney Stones SpringerLink

    Urinary stone disease is characterized by crystalline depositions (called calculi) in the renal calyces, pelvis, or ureter, which are classified due to their location and chemical composition. About 80 % of urinary stones are calcium oxalate stones with a variable amount of calcium phosphate. Less than 20 % of stones are non-calcium calculi ...

  • Chemical Composition of Urinary Stones, in Stone Passers ...

    2016-5-4  to female ratio 2.8:1, the frequency of compounds in stones was calcium oxalate (33.1%), uric acid (18.3%) and struvite stone (7.9%) while percentage of mixed calcium and urate stones were 18% and 22.7% respectively. Conclusion: Chemical composition of spontaneously passed urinary stones

  • Kidney Stones Urology of Indiana

    2020-7-5  There are several different types of kidney stones, each with a different chemical composition. The vast majority of kidney stones contain calcium. Calcium stones are composed of calcium that is chemically bound to either oxalate (calcium oxalate stones) or phosphate (calcium phosphate stones). Of these, calcium oxalate is far more common.

  • Treatment and Prevention of Kidney Stones: An

    Kidney stones are associated with chronic kidney disease. Preventing recurrence is largely specific to the type of stone (e.g., calcium oxalate, calcium phosphate, cystine, struvite [magnesium ...

  • Urinary pH and Stone Formation - PubMed

    The formation of various types of kidney stones is strongly influenced by urinary pH. An alkaline pH favors the crystallization of calcium- and phosphate-containing stones, whereas and acidic urine pH promotes uric acid or cystine stones. The activity of many transport processes involved in calcium,

  • Composition Of Kidney Stones: Oxalate, Phosphate

    Kidney stones have different composition calcium oxalate calcium phosphate and uric acid. Depending upon composition it is easy to determine whether it is soft, rough and easy to detect during diagnosis.