Ascites
Ascites: Excerpt from In A Page: Pediatric Signs and Symptoms
Ascites, the accumulation of serous fluid within the peritoneal cavity, may be caused by a combination of factors, including hypoalbuminemia, portal hypertension, increased aldosterone and antidiuretic hormone secretion, overproduction of lymph, and enhanced renal reabsorption of sodium and water. In children, hepatic, renal, and cardiac diseases are the most common causes. Patients are at an increased risk of spontaneous bacterial peritonitis. The most common infecting organism is Streptococcus pneumoniae.
Differential Diagnosis
Hepatic, resulting in portal hypertension
–Hepatic cirrhosis: Extrahepatic biliary atresia, α-1-antitrypsin deficiency,
galactosemia, tyrosinemia
–Portal vein thrombosis
–Cavernous transformation: Catheterization,
dehydration, clotting disorder, omphalitis
–Budd-Chiari syndrome, due to neoplasm,
collagen disease, hypercoagulopathy, OCP
–Arteriovenous fistula
–Fulminant hepatic failure (drugs, virus)
–Congenital hepatic fibrosis
–Lysosomal storage diseases (e.g., Gaucher)
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Bile ascites (bile peritonitis): Spontaneous rupture of the common bile duct
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Renal
–Nephrotic syndrome
–Urinary ascites (due to bladder rupture)
–Obstructive uropathy: Congenital ascites may
be seen with bilateral hydronephrosis
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Peritoneal dialysis
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Cardiac
–Congestive heart failure
–Chronic constrictive pericarditis
–Inferior vena cava web
–Erythroblastosis fetalis
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Peritonitis
–Tuberculous peritonitis
–Schistosomiasis (Mansoni)
–Tularemia
–Abscess
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Gastrointestinal disorders
–Infarcted bowel
–Bowel perforation
–Pancreatitis, ruptured pancreatic duct
–Protein-losing gastroenteropathy
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Chylous ascites
–Collection of lymph within the abdominal cavity; secondary to lymphatic obstruction from trauma, surgery, tumor, tuberculosis, or filariasis
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Gynecologic
–Ovarian tumors, cyst torsion or rupture
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Malignancy
–Leukemia, lymphoma, neuroblastoma
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Systemic lupus erythromatosus
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Ventriculoperitoneal shunt
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Hypothyroidism
Workup and Diagnosis
- History and physical exam
–Clinical hallmark of ascites is abdominal distension
–Five classic signs of ascites: Flank bulging, flank dullness, shifting dullness, fluid wave, puddle sign
–Only appreciated when there is considerable fluid
–Respiratory distress may develop with tense ascites
–Umbilical herniation can be seen with large ascites
–Peripheral edema or anasarca may accompany severe
hypoalbuminemia
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Urinalysis and urine electrolytes (for proteinuria)
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CBC with diff (lymphopenia in lymphatic obstruction)
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Serum electrolytes (for sodium management)
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True liver function tests
–Examines the synthetic function of the liver
–Serum albumin, vitamin K, and coagulation factors
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Abdominal ultrasound detects small volume of ascites
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KUB may show centrally floating intestines
- Paracentesis: Milky fluid indicates chylous ascites, fluid analysis will reveal elevated protein and triglycerides and lymphocytosis (fluid serous in a fasting patient)
–Bile may indicate perforation of common bile duct
–High creatinine: Seen with bladder rupture
–Ascitic fluid analysis for cell count, cytology, protein,
LDH, amylase, lipase, creatinine, pH, culture, Gram stain, bile, lipids, and sudan red staining for fat
Treatment
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Treatment is directed at underlying cause
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Bed rest, fluid, sodium restriction is the first line
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Diuretics: Careful use in selected cases
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Chylous ascites
–High-protein, low-fat diet supplemented with medium-chain triglycerides
–Parenteral nutrition may be needed to decrease lymph flow and supplement nutrition
–Laparotomy may be indicated for failed dietary management, to seal leak site
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Surgical intervention: Bile or urine ascites
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Therapeutic paracentesis: May be repeated to relieve respiratory distress or impending umbilical rupture
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Portacaval shunt or a peritoneovenous shunt (LeVeen) for intractable ascites
–Shunt between peritoneal cavity and superior vena cava
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Transjugular intrahepatic portosystemic shunt (TIPSS) for cirrhosis while awaiting transplantation
Book Source Details
- Book Title: In A Page: Pediatric Signs and Symptoms
- Author(s): Jonathan E. Teitelbaum, Kathleen O. Deantonis, Scott Kahan
- Year of Publication: 2007
- Copyright Details: In A Page: Pediatric Signs and Symptoms, Copyright © 2007 Lippincott Williams & Wilkins.
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- "Differential Diagnosis in Primary Care" (2007)
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- Jaundice
- "Handbook of Signs & Symptoms (Third Edition)" (2006)
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- "A Pocket Manual of Differential Diagnosis" (1999)
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- "A Pocket Manual of Differential Diagnosis" (1999)
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- Hepatomegaly
- "Professional Guide to Signs & Symptoms (Fifth Edition)" (2006)
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- Ascites
- "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter" (2000)
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- Hepatomegaly
- "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter" (2000)
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- Jaundice
- "The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter" (2000)
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- Jaundice
- "Signs & Symptoms: A 2-in-1 Reference for Nurses" (2007)
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- Hepatomegaly
- "The Diagnostic Approach to Symptoms and Signs in Pediatrics" (2006)
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- Jaundice
- "The Diagnostic Approach to Symptoms and Signs in Pediatrics" (2006)
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- JAUNDICE
- "Differential Diagnosis in Primary Care" (2007)
- [ read ]
Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.
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More About This Book:
Title: In A Page: Pediatric Signs and Symptoms
Authors: Jonathan E. Teitelbaum, Kathleen O. Deantonis, Scott Kahan
Publisher: Lippincott Williams & Wilkins
Copyright: 2007
ISBN: 1-4051-0427-9
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