Transition of amorphous magnesium ammonium phosphate to a crystalline state in rat urinary calculi induced by L-forms ofProteus mirabilis

1970 ◽  
Vol 5 (1) ◽  
pp. 80-84 ◽  
Author(s):  
B. L. Rottschaefer ◽  
M. Sax ◽  
J. Pletcher ◽  
A. I. Braude
Keyword(s):  
Crystalline State ◽  
Urinary Calculi ◽  
Ammonium Phosphate ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium

Urinary Calculi

1958 ◽  
Vol 4 (4) ◽  
pp. 267-270 ◽  
Author(s):  
Henry O Nicholas ◽  
H F Leifeste
Keyword(s):  
Calcium Phosphate ◽  
Urinary Calculi ◽  
Ammonium Phosphate ◽  
Aluminum Silicate ◽  
Magnesium Ammonium Phosphate ◽  
Simple Method ◽  
Iron Aluminum ◽  
Magnesium Ammonium ◽  
Similar Survey ◽  
Calcium Iron

Abstract During the course of this investigation we have encountered two "fakes," both of which were represented by the patients to their respective physicians as having been "passed." They showed less than 2 per cent loss on ignition and proved to be calcium-iron-aluminum silicate rocks. We have also had about a dozen prostatic calculi which were analysed by the "ashing" method. This type of calculus consists of either a mixture of magnesium ammonium phosphate and calcium phosphate, or a mixture of calcium carbonate and calcium phosphate. The above-mentioned stones are, of course, not included in this picture. We hope that this survey and the simple method of analysis presented in these two articles will stimulate further work along this line in various parts of the country. The best similar survey we have seen is that of Leonard and Butt (1) on the types of calculi found in the Pensacola, Florida, area.

scholarly journals Chemical composition of urinary stones in Rahim Yar Khan and adjacent districts of Sindh and Baluchistan

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
Abdul Hakeem ◽  
Muhammad Tariq ◽  
Mehboob Bari ◽  
Muhammad Hassan Abbas ◽  
Muhammad Anwar
Keyword(s):  
Calcium Oxalate ◽  
Urinary Calculi ◽  
Ammonium Phosphate ◽  
Upper Urinary Tract ◽  
Pure Form ◽  
Urinary Stones ◽  
Magnesium Ammonium Phosphate ◽  
Female Ratio ◽  
Magnesium Ammonium ◽  
Urinary Tract Calculi

Aim: To find out the constituents of the urinary stones, so that preventive measures would be taken against recurrence. Patients and methods: A total No. of 200 consecutive patients with upper urinary tract calculi, that were operated in the urology and general surgical wards of Sh. Zayed Hospital Rahim Yar Khan were included in the study. In addition to Rahim Yar Khan the patients also came from adjacent districts of Sindh and Baluchistan. Qualitative Chemical analysis was carried out using Merchognost (Germany) urinary calculi analysis kit. All the tests were performed according to the instruction of manufacturers of the kit. Results: Stone samples were collected from 200 patients, out of these 138 (69%) were male and 62 (31%) of patients were female with male to female ratio 2.2:1 age range was between 9-72 years. Results of stone analysis indicate that calcium oxalate is the most common ingredient found in 100% of the stone samples. In 83% of patients it was found mixed with other varieties of stones while in 17% samples it was seen in pure form. Uric acid was the second most common ingredient seen in 73% of patients mixe d with calcium oxalate and magnesium ammonium phosphate but it was not found as pure form. Magnesium Ammonium phosphate found in 13% of stones samples in mixed form only, not as isolated stone.

Magnesium ammonium phosphate monohydrate — A hitherto undetected constituent of urinary calculi

1973 ◽  
Vol 5 (1) ◽  
pp. 19-26 ◽  
Author(s):  
A. Hesse ◽  
H. -J. Schneider ◽  
G. Weitz ◽  
R. Cruse ◽  
W. E. Klee
Keyword(s):  
Urinary Calculi ◽  
Ammonium Phosphate ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium

scholarly journals A Giant Ureteral Stone without Underlying Anatomic or Metabolic Abnormalities: A Case Report

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Selcuk Sarikaya ◽  
Berkan Resorlu ◽  
Ekrem Ozyuvali ◽  
Omer Faruk Bozkurt ◽  
Ural Oguz ◽  
...  
Keyword(s):  
Ureteral Stone ◽  
Ammonium Phosphate ◽  
Intravenous Urography ◽  
Metabolic Abnormalities ◽  
Magnesium Ammonium Phosphate ◽  
Distal Ureter ◽  
Double J Stent ◽  
Magnesium Ammonium ◽  
Left Flank Pain ◽  
Plain Abdominal Film

A 28-year old man presented with left flank pain and dysuria. Plain abdominal film and computed tomography showed a left giant ureteral stone measuring 11.5 cm causing ureteral obstruction and other stones 2.5 cm in size in the lower pole of ipsilateral kidney and 7 mm in size in distal part of right ureter. A left ureterolithotomy was performed and then a double J stent was inserted into the ureter. The patient was discharged from the hospital 4 days postoperatively with no complications. Stone analysis was consistent with magnesium ammonium phosphate and calcium oxalate. Underlying anatomic or metabolic abnormalities were not detected. One month after surgery, right ureteral stone passed spontaneously, left renal stone moved to distal ureter, and it was removed by ureterolithotomy. Control intravenous urography and cystography demonstrated unobstructed bilateral ureter and the absence of vesicoureteral reflux.

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