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Nephrotic Syndrome I : Introduction

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Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
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IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document...
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Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

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Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
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AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...
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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
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The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
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Recurrent Spontaneous Bladder Rupture with a Markedly Elevated Serum-ascites Albumin Gradient.

Makoto Higashino1, Hidehiro Murakami1, Daiichiro Suzuki2

  • 1Department of Internal Medicine, Saiseikai Matsuyama Hospital, Japan.

Internal Medicine (Tokyo, Japan)
|October 15, 2025
PubMed
Summary

Bladder rupture, a rare condition, presents with nonspecific symptoms. This case highlights elevated serum ascites albumin gradient (SAAG) in bladder rupture, suggesting a potential diagnostic marker requiring further study.

Keywords:
serum-ascites albumin gradientspontaneous bladder rupture

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Area of Science:

  • Urology
  • Nephrology
  • Radiology

Background:

  • Bladder rupture is a rare, potentially fatal condition with nonspecific, often misleading, symptoms.
  • Diagnosis can be challenging, frequently leading to delayed recognition and treatment.
  • Pelvic radiotherapy history can complicate the clinical picture.

Purpose of the Study:

  • To report a case of bladder rupture in a patient with a history of pelvic radiotherapy.
  • To investigate the diagnostic utility of the serum ascites albumin gradient (SAAG) in bladder rupture.
  • To highlight the challenges in diagnosing bladder rupture due to nonspecific symptoms.

Main Methods:

  • Case report of a 75-year-old woman presenting with abdominal pain, renal dysfunction, and ascites.
  • Initial management focused on suspected NSAID-induced renal injury.
  • Diagnosis of bladder rupture was confirmed via elevated ascitic creatinine and cystography.

Main Results:

  • The patient's serum ascites albumin gradient (SAAG) was elevated (>3.0 g/dL).
  • Initial treatment for presumed NSAID-induced renal injury led to temporary improvement.
  • Recurrent symptoms prompted further investigation, confirming bladder rupture.

Conclusions:

  • Bladder rupture can present insidiously, mimicking other conditions like renal injury.
  • Elevated SAAG levels in bladder rupture, while theoretically expected, require further validation as a diagnostic tool.
  • Early suspicion and appropriate diagnostic imaging are crucial for timely bladder rupture diagnosis.