Table 3. Biochemical Abnormalities in Patients With Hepatic Complications After Roux-en-Y Gastric Bypass.
| Lab test | Case 1 | Case 2 | Case 3 | Case 4 | Case 5 | Case 6 | Our case |
|---|---|---|---|---|---|---|---|
| Reference | [4] | [4] | [5] | [5] | [5] | [7] | |
| Total bilirubin (mg/dL) | 3 × normal | Normal | 1.6 (high) | 13.3 (high) | 11.7 (high) | 7.5 | 2.5 |
| Total protein | N/A | N/A | 7.5 | 5.8 (low) | 5.9 (low) | N/A | 3.7 |
| Albumin (g/dL) | 1.2 (low) | 1.0 (low) | 1.6 (low) | 1.5 (low) | 2.7 (low) | 1.9 | < 1.5 |
| INR | > 7 (high) | > 7 (high) | 2.1 (high) | 1.9 (high) | 2.0 (high) | 1.7 (high) | 1.4 (high) |
| AST (IU/L) | 25 | 43 (high) | 74 (high) | 137 (high) | 50 (high) | 17 | 24 |
| ALT (IU/L) | 21 | 54 (high) | 21 | 70 (high) | 26 | 18 | 16 |
| BUN (mg/dL) | N/A | N/A | 12 | 4 (low) | 10 | N/A | 5 (low) |
| Platelets (× 103/µL) | N/A | N/A | 91 (low) | 112 (low) | 136 (low) | 21 (low) | 96 (low) |
| Ammonia (µmol/L) | 224 (high) | 86 (high) | N/A | 210 (high) | 111 (high) | N/A | 136 (high) |
| ALP (IU/L) | N/A | N/A | N/A | N/A | N/A | 65 | 118 |
| Ceruloplasmin (mg/dL) | N/A | N/A | N/A | N/A | N/A | 9 (low) | < 6 (low) |
| Vitamin B12 | High | Normal | N/A | N/A | N/A | High | High |
| Vitamin B1 | Normal | Normal | N/A | N/A | N/A | Normal | N/A |
| Vitamin B3 | N/A | N/A | N/A | N/A | N/A | Low | N/A |
| Vitamin B6 | Low | Normal | N/A | N/A | N/A | N/A | Low |
| Vitamin D | Low | Low | N/A | N/A | N/A | Low | Low |
| Zinc | N/A | N/A | N/A | N/A | N/A | N/A | Low |
INR: international normalized ratio; AST: aspartate transaminase; ALT: alanine transaminase; BUN: blood urea nitrogen; ALP: alkaline phosphatase; N/A: not available.