Long term repercussions of the intestinal bypass surgeries 

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Listing of jejuno-ileal bypass complications: (according to the ASBMS, ALL surgeries which involve any kind of intestinal bypass are at risk for at least some of the following)

Mineral and Electrolyte Imbalance:

* Decreased serum sodium, potassium, magnesium and bicarbonate.
* Decreased sodium chloride
* Osteoporosis and osteomalacia secondary to protein depletion, calcium and vitamin D loss, and acidosis, (i.e. fragile porous bones which break easily)

Protein Calorie Malnutrition:

* Hair loss, anemia, edema (swelling), and vitamin depletion

Cholelithiasis (gall stones):

Enteric Complications:

* Abdominal distension, irregular diarrhea, increased flatus, pneumatosis intestinalis, colonic pseudo-obstruction, bypass enteropathy, volvulus with mechanical small bowel obstruction.

Extra-intestinal Manifestations:

* Arthritis
* Liver disease, occurs in at least 30%
* Acute liver failure may occur in the postoperative period, and may lead to death acutely following surgery.
* Steatosis, "alcoholic" type hepatitis, cirrhosis, occurs in 5%, progresses to cirrhosis and death in 1-2%
* Erythema Nodosum, non-specific pustular dermatosis
* Weber-Christian Syndrome
* Renal Disease (Kidney):
* Hyperoxaluria, with oxalate stones or interstitial oxalate deposits, immune complex nephritis, "functional" renal failure (kidney stones and kidney failure).


* Peripheral neuropathy, pericarditis, pleuritis, hemolytic anemia, neutropenia, and thrombocytopenia.