Albumin Infusion in Acute Bowel Obstruction
Albumin infusion is not recommended for patients with acute bowel obstruction as it may worsen fluid dynamics and lead to poorer outcomes compared to crystalloid solutions.
Pathophysiology and Evidence
- In experimental models of bowel obstruction, albumin-containing solutions led to higher serum colloid oncotic pressure but also caused greater loss of peritoneal fluid, lower urine output, and progression of muscular dehydration compared to normal saline 1
- Inflammation in the wall of obstructed intestine plays a significant role in fluid losses during bowel obstruction, with high albumin content found in peritoneal fluid of obstructed subjects 2
Specific Clinical Scenarios Where Albumin Is Beneficial
While albumin is not recommended for bowel obstruction specifically, it is beneficial in certain liver-related conditions:
Large Volume Paracentesis
- Albumin should be administered during large-volume paracentesis (>5L) at a dose of 6-8 g/L of ascites removed to prevent post-paracentesis circulatory dysfunction 3
- For paracentesis <5L, the risk of developing circulatory dysfunction is low, though some guidelines still recommend albumin administration 3
- It's preferable to limit ascites removal to <8L during a single paracentesis procedure to reduce complications 3
Spontaneous Bacterial Peritonitis (SBP)
- IV albumin (1.5 g/kg on day 1 and 1 g/kg on day 3) should be administered with antibiotics in patients with SBP 3
- This combination significantly reduces the incidence of acute kidney injury (10% vs 33%) and mortality (10% vs 29%) compared to antibiotics alone 3
- Patients with serum bilirubin >4 mg/dL and baseline kidney dysfunction are most likely to benefit from albumin administration 3
Potential Adverse Effects of Albumin
- Albumin administration can cause fluid overload, pulmonary edema, hypotension/tachycardia, nausea/vomiting, rigors, pyrexia, and rash/pruritus 3
- These adverse events are generally dose-dependent but can occur even with lower doses 3
Clinical Applications in Bowel Obstruction
Standard management of bowel obstruction should focus on:
- Fluid resuscitation with crystalloid solutions rather than albumin 1
- Decompression of the obstructed bowel
- Treatment of underlying inflammation with appropriate medications
- Surgical intervention when indicated
Anti-inflammatory medications like indomethacin and hydrocortisone have been shown to reverse fluid secretion in obstructed intestine, suggesting they may be more beneficial than albumin in managing the fluid dynamics of bowel obstruction 2
Conclusion for Clinical Practice
- For patients with acute bowel obstruction, crystalloid solutions (normal saline) are preferred over albumin for fluid resuscitation 1
- Albumin infusion may actually worsen fluid dynamics in bowel obstruction by increasing peritoneal fluid losses and contributing to muscular dehydration 1, 2
- Focus treatment on addressing the underlying cause of obstruction, managing inflammation, and providing appropriate fluid resuscitation with crystalloids