Long-term leaching of nutrients from magnesium ammonium phosphate at various temperatures

1976 ◽  
Vol 4 (4) ◽  
pp. 405-413 ◽  
Author(s):  
H. P. Rothbaum ◽  
A. G. Rohde
Keyword(s):  
Ammonium Phosphate ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium

Pathophysiology and Treatment of Infection Stones

2017 ◽  
Author(s):  
Patrick T Gomella ◽  
Patrick W Mufarrij
Keyword(s):  
Calcium Carbonate ◽  
Percutaneous Nephrolithotomy ◽  
Ammonium Phosphate ◽  
Primary Treatment ◽  
Definitive Treatment ◽  
Carbonate Apatite ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium ◽  
Treatment Of Infection

Infection stones are a well-known clinical entity that can cause significant long-term morbidity and even mortality if not treated appropriately. Infection stones are primarily composed of magnesium ammonium phosphate and calcium carbonate apatite. These stones form in alkaline urine containing ammonium. This environment is generated by infection with urease-producing organisms. Definitive treatment is aimed at removal of all stone. Percutaneous nephrolithotomy is typically the procedure of choice. Medical therapy can be used as an adjunct to surgery or as primary treatment in patients who are not surgical candidates. This review contains 8 highly rendered figures, 4 tables, and 72 references Key words: Infection stone; struvite; percutaneous nephrolithotomy; urease; dissolution therapy; magnesium ammonium phosphate; calcium carbonate apatite

Pathophysiology and Treatment of Infection Stones

2018 ◽  
Author(s):  
Patrick T Gomella ◽  
Patrick W Mufarrij
Keyword(s):  
Calcium Carbonate ◽  
Percutaneous Nephrolithotomy ◽  
Ammonium Phosphate ◽  
Primary Treatment ◽  
Definitive Treatment ◽  
Carbonate Apatite ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium ◽  
Treatment Of Infection

Infection stones are a well-known clinical entity that can cause significant long-term morbidity and even mortality if not treated appropriately. Infection stones are primarily composed of magnesium ammonium phosphate and calcium carbonate apatite. These stones form in alkaline urine containing ammonium. This environment is generated by infection with urease-producing organisms. Definitive treatment is aimed at removal of all stone. Percutaneous nephrolithotomy is typically the procedure of choice. Medical therapy can be used as an adjunct to surgery or as primary treatment in patients who are not surgical candidates. This review contains 8 highly rendered figures, 4 tables, and 72 references Key words: Infection stone; struvite; percutaneous nephrolithotomy; urease; dissolution therapy; magnesium ammonium phosphate; calcium carbonate apatite

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.

In vitro production of struvite by Bacillus pumilus

1991 ◽  
Vol 37 (12) ◽  
pp. 978-983 ◽  
Author(s):  
Berlin Nelson ◽  
James Struble ◽  
Gregory McCarthy
Keyword(s):  
Bacillus Pumilus ◽  
Potassium Phosphate ◽  
Ammonium Phosphate ◽  
Maximum Size ◽  
In Vitro Production ◽  
Magnesium Ammonium Phosphate ◽  
X Ray ◽  
Magnesium Ammonium ◽  
Vitro Production

A strain of Bacillus pumilus, isolated from the soilborne sclerotia of a fungus, produced crystals of the mineral struvite (magnesium ammonium phosphate hexahydrate) on Difco nutrient agar and a yeast extract agar containing magnesium sulphate and potassium phosphate. Crystals were macroscopically observed after 6–20 days of bacterial growth and reached a maximum size of 3 × 0.5 mm. Crystals were identified by X-ray powder diffractometry. These findings support the hypothesis that bacteria are involved in the biogenic formation of struvite in nature. Key words: struvite, magnesium ammonium phosphate hexahydrate, Bacillus pumilus, biomineral.

Annual changes of the incidence and clinical characteristics of magnesium ammonium phosphate urinary stones

2003 ◽  
Vol 10 (1) ◽  
pp. 1-5 ◽  
Author(s):  
TAKAHIDE OGATA ◽  
KOICHIRO AKAKURA ◽  
KEN-ICHI MIZOGUCHI ◽  
KAZUO MIKAMI ◽  
KUNIYOSHI NOZUMI ◽  
...  
Keyword(s):  
Clinical Characteristics ◽  
Ammonium Phosphate ◽  
Urinary Stones ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium ◽  
Annual Changes
Sign in / Sign up

Export Citation Format

Share Document