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Dumping Syndrome
➤ Dumping syndrome is a common complication after bariatric
surgery, particularly following RNYGB and, less frequently, SADI-S,
and is managed through dietary modification and, in rare cases,
medications. It occurs when hyperosmolar gastric contents
rapidly enter the small intestine, drawing in fluid and causing
gastrointestinal and vasomotor symptoms.
➤ Dumping syndrome can be categorized as:
• Early dumping (within 30 to 60 minutes postprandially):
Abdominal cramping, nausea, bloating, diarrhea, palpitations,
light-headedness, and fatigue.
• Late dumping (1–3 hours postprandially): Hypoglycemic symptoms
such as tremors, confusion, sweating, and weakness due to
exaggerated insulin release.
Management Strategies
➤ Eat smaller, frequent meals (5 to 6 per day) to avoid gastric
overload.
➤ Avoid simple sugars, such as fruit juice, candy, and syrups, as well
as high-glycemic carbohydrates.
➤ Separate fluid intake from meals by at least 30 minutes.
➤ Increase dietary fiber and protein to slow gastric emptying.
➤ In refractory cases, consider acarbose for late dumping.
➤ Monitor and educate patients regularly, particularly during the
first postoperative year, when symptoms are most likely to occur.
