Ascites

Populations and Risk Factors

Adults with cirrhosis — approximately 75% of all ascites cases. Portal hypertension is the driving mechanism
Malignant ascites: peritoneal carcinomatosis from ovarian, colon, gastric, or pancreatic cancer. Hepatocellular carcinoma
Right-sided heart failure (congestive hepatic venous congestion) and constrictive pericarditis
Nephrotic syndrome: severe hypoalbuminemia (albumin < 25 g/L) reduces plasma oncotic pressure
Pancreatitis: pancreatic duct disruption causes pancreatic ascites
Tuberculosis: tuberculous peritonitis (rare in North America but significant globally)

Portal hypertension mechanism: Elevated portal venous pressure (> 12 mmHg) forces fluid from hepatic sinusoids and splanchnic capillaries into the peritoneal cavity. Simultaneously, impaired hepatic albumin synthesis reduces plasma oncotic pressure, further promoting fluid extravasation. The renin-angiotensin-aldosterone system (RAAS) activates in response to perceived hypovolemia, causing sodium and water retention that worsens the cycle.
Hypoalbuminemia: When serum albumin falls below 25 g/L, oncotic pressure is insufficient to retain intravascular fluid. This mechanism operates in nephrotic syndrome, severe liver disease, and protein-losing enteropathy.
Malignant ascites: Tumor implants on the peritoneal surface obstruct lymphatic drainage pathways and secrete vascular endothelial growth factor (VEGF) and other vasoactive mediators that increase capillary permeability.
Spontaneous bacterial peritonitis (SBP): Gut bacteria translocate across the edematous intestinal wall into protein-poor ascitic fluid, which lacks adequate opsonins for bacterial clearance. SBP is life-threatening and presents with fever, diffuse abdominal pain, and worsening encephalopathy.
Mechanical consequences: Massive ascites elevates the diaphragm, causing dyspnea and orthopnea. Inferior vena cava compression reduces venous return from the lower extremities, contributing to peripheral edema.

Abdominal distension: Progressive outward bulging. Umbilical eversion in severe cases. Abdominal girth increases measurably
Fluid wave and shifting dullness on percussion: Distinguish ascites from adiposity or bowel distension
Rapid weight gain: > 0.5 kg/day indicates active fluid accumulation
Dyspnea and orthopnea: Diaphragmatic elevation causes breathlessness, worst in supine and prone positions
Umbilical hernia: Increased intra-abdominal pressure forces the umbilicus outward
Peripheral edema: Concurrent with ascites in clients with hypoalbuminemia or IVC compression
SBP presentation (red flag): Fever, diffuse abdominal tenderness, worsening encephalopathy — medical emergency; do not treat

SBP: Fever, increasing abdominal pain, confusion or worsening encephalopathy in a client with known ascites — cease treatment and refer to emergency services immediately
New-onset or rapidly worsening ascites: May indicate decompensation, malignancy, or portal vein thrombosis — urgent medical evaluation needed
Severe respiratory distress: Tense ascites with dyspnea at rest — client may require therapeutic paracentesis

Prone positioning is contraindicated — compression of the distended abdomen worsens venous return and respiratory compromise. Use side-lying or semi-reclined (30-60 degrees)
Abdominal massage is contraindicated regardless of cause — direct pressure over distended ascitic abdomen can cause pain and provides no therapeutic benefit
Underlying condition drives all precautions: Cirrhotic ascites carries coagulopathy, encephalopathy, and variceal risks. Malignant ascites is associated with cachexia and extreme debility
Respiratory support: Elevate the head of the table to reduce diaphragmatic pressure. Monitor respiratory ease throughout the session
Coagulopathy and skin fragility: If associated with liver disease, apply all cirrhosis precautions — light pressure only. No deep tissue, cupping, or percussion
Diuretic use: Clients on furosemide and spironolactone may experience electrolyte imbalances causing muscle cramps, fatigue, and orthostatic hypotension — slow repositioning is essential
Palliative care context: Gentle, comfort-focused massage is deeply valued and appropriate. Coordinate scope and intent with the medical team

Prone positioning contraindication is a high-yield exam point — ascites is a classic scenario for positioning modification questions
Recognize that ascites is a sign, not a diagnosis — the underlying cause (cirrhosis, malignancy, heart failure) determines the full scope of MT precautions
SBP recognition: fever + abdominal pain + confusion in a client with known ascites = medical emergency
Differentiate ascites from obesity on physical assessment: fluid wave, shifting dullness, rapid weight gain, and umbilical eversion are key findings
Ascites secondary to cirrhosis appears in hepatic decompensation scenarios requiring awareness of coagulopathy and encephalopathy

Ascites is peritoneal fluid accumulation — most commonly from cirrhosis and portal hypertension, but also malignancy, cardiac failure, and nephrotic syndrome
Prone positioning and abdominal massage are both contraindicated — side-lying or semi-reclined with head elevated is the appropriate position
The underlying cause determines the full scope of MT precautions: cirrhotic ascites carries coagulopathy and encephalopathy risks. Malignant ascites reflects active cancer
SBP (fever, abdominal pain, confusion in a client with ascites) is a medical emergency — cease treatment and refer immediately
General comfort massage is beneficial and valued in palliative care contexts — coordinate with the medical team
Diuretic therapy causes electrolyte imbalances and orthostatic hypotension — slow repositioning is mandatory