Gastroparesis causes

Causes: DM, scleroderma, intestinal pseudobstruction, previous gastric surgery.

- Other less common causes: metabolic derangements, hypokalemia, hypercalcemia, hypocalcemia, hyperglycemia, narcotic analgesics, anti-cholinergics, chemo Tx.

Labs: NM gamma camera scanning - gastric emptying study.

Tx: avoid high fat, high fiber diet

- High calorie iso-osmotic meals may be beneficial.

- Correct metabolic derangements

- Reglan (metoclopramide) 10 mg PO qid, 30 min before meals

- Erythromycin, 250 mg PO tid or 200 mg IV

- Zelnorm (tegaserod - 5-HT4) agonist: 2 - 6 mg PO bid, 30 min ac.