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ASCITES Abnormal accumulation of fluid in the peritoneal cavity Common causes Malignant Disease Hepatic Peritoneal Cardiac failure Hepatic cirrhosis . Pathogenesis Ascites occurs because of the imbalance between the formation & resorption of peritoneal fluid.
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ASCITES • Abnormal accumulation of fluid in the peritoneal cavity Common causes • Malignant Disease • Hepatic • Peritoneal • Cardiac failure • Hepatic cirrhosis
Pathogenesis Ascites occurs because of the imbalance between the formation & resorption of peritoneal fluid. In Cirrhosis of liver, Ascites is due to • Increased hydrostatic pressure - due to portal hypertension causes transduction of fluid in peritoneal cavity. • Sodium & water retention due to activation of rennin - angiotensinogen - aldosterone system • Low plasma osmotic pressure due to low protein synthesis in liver
Causes Transudative (protein <2.5g.dl) • Portal HTN • Cirrhosis • Fulminant hepatic failure • Alcoholic hepatitis • Congestive heart failure • Constrictive pericarditis • Hypoalbuminemia • Nephrotic syndrome • Protein losing enteropathy • Severe malnutrition
Exudative (protein >2.5 g/ dl) • Infections – tuberculosis, bacterial peritonitis • Malignancy – hepatic or peritoneal
C/F Symptoms • Abdominal distention with fullness of flanks • Decrease urinary output • Pressure symptoms – Dyspnoea • Symptoms according to cause
Signs Inspection • Abdominal distention • Everted umbilicus • Fullness of flanks Palpation • Difficult organ palpation • Fluid thrill – present Percussion • Shifting dullness – present Auscultation • Inaudible/Diminished bowel sound
Investigation • TC, DC, ESR, Hb • Aspiration and analysis of ascitic fluid • USG of Abdomen • CT of Abdomen • Investigation according to cause
Causes of Ascites according to SAAG (Serum Ascites Albumin Gradient ) • SAAG = (albumin concentration of serum) - (albumin concentration of ascitic fluid). Saag >1.1 g/dl • Portal HTN • Cirrhosis Saag <1.1 g/dl • Infections • Malignancy
Rx • Bed rest till ascites subsides • Diet – Restriction of salt • Restriction of water (500ml + Previous day urine output) • Diuretics • Spironolactone (100-400mg/day) • Paracentesis (Therapeutic fluid aspiration) 3-5 liters over 1-2 hr. for immediate relieve of cardio-respiratory distress. • 5. Rx of cause
D/D • Fatty person • Pregnancy • Intestinal obstruction • Neoplastic mass in the abdomen (Fibroid, ovarian cyst) • Full bladder/chronic Urine retention Complications: • Spontaneous bacterial peritonitis • Hernia • Cardio-respiratory distress
Spontaneous Bacterial peritonitis • Infection of ascitic fluid (SBP) is common in patients with cirrhosis as a part of their susceptibility to infection. Organisms • Escherichia coli • Klebsiella pneumoniae • Enterococcus • Streptococcus pneumoniae • Viridians streptococci
C/F • Fever • Abdominal pain & tender • Ascites • Features of Chronic Liver Disease • Bowel sound diminished or absent • Hepatic Encephalopathy
Investigations • TC, DC, ESR, Hb • Ascitic fluid analysis (gram stain & culture for isolation of organism) (most commonly E coli) • Blood culture Treatment • Therapeutic antibiotics • Broad spectrum Antibiotics (Cefotaxime 1gm IV 8 hrl for 5- 7 days) Or • Amoxicillin – Clavunic acid 1.2 gm IV 8 hrly