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http://dx.doi.org/10.1007/s00467-009-1344-1DOI Listing

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Article Synopsis
  • Bartter's syndrome (BS) is a genetic disorder affecting kidney function, leading to imbalances in electrolytes and blood pressure due to loss-of-function variants in specific genes.
  • The study aimed to conduct clinical and genetic analyses on families with two types of Bartter syndrome: Antenatal Bartter syndrome (ABS) and Classic Bartter syndrome (CBS).
  • Results revealed pathogenic variants in the SLC12A1, KCNJ1, and CLCNKB genes among several patients, highlighting the genetic basis for ABS and CBS.
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The relief of the impediment to urinary flow is the treatment of acute kidney failure due to urinary tract obstruction. However, there is a risk of inducing massive polyuria, which can be self-limited or produce severe contraction of the intravascular volume with pre-renal acute kidney failure and alterations in the internal environment. Polyuria, urine output > 3 L/d or > 200 mL/min for more than 2 hours, can have multiple causes, and can be classified as osmotic, aqueous or mixed.

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Background: Anterior sacral meningocele (ASM) is a defect in the closure of the neural tube. Patients can be asymptomatic or present with genitourinary, neurological, reproductive, or colorectal dysfunction. Magnetic resonance imaging (MRI) is the gold standard test because it can assess communication between the spinal subarachnoid space and the lesion and identify other abnormalities.

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Flash pulmonary oedema is a life-threatening complication of renal artery stenosis. We report a very rare complication in a patient with bilateral atherosclerotic renal artery stenosis who underwent unilateral renal artery angioplasty because of recurrent flash pulmonary oedema. Shortly after the procedure, she developed extreme polyuria (over 201 in the first 48 h) with massive natriuresis (>1000 mmol urinary sodium excretion in the first 24 h).

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Polyuria in post-kidney transplant (KT) patients is a common condition generally attributed to delayed tubular function, fluid administration, and solute diuresis. Since excessive water intake post-KT physiologically suppresses arginine vasopressin (AVP) secretion, central diabetes insipidus (CDI) caused by deficient primary AVP release can be overlooked. Although DDAVP (desmopressin) - a selective AVP V2 receptor agonist - has been used to treat massive polyuria, CDI rarely progresses to kidney injury due to the preservation of fluid balance by thirst-dependent osmoregulation.

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