In the Rome IV classification there are two main types of functional dyspepsia, one of which is postprandial dyspepsia (PDS)
Features of functional dyspepsia - both of the following:
(1) one or more of: bothersome postprandial fullness, bothersome early satiation, bothersome epigastric pain, bothersome epigastric burning
(2) findings cannot be explained by structural disease
Features of postprandial distress syndrome:
(1) at least of the following >= 3 days per week for last 3 months
(1a) bothersome postprandial fullness severe enough to impact usual activities
(1b) bothersome early satiation severe enough to prevent finishing a regular-size meal
(2) symptom onset >= 6 months ago
Features that may be present include:
(1) postprandial epigastric pain or burning
(2) epigastric bloating
(3) excessive belching
(4) nausea
(5) heartburn
Features that are usually not considered part of dyspepsia:
(1) vomiting
(2) relief by evacuation of feces or gas
PDS may be mixed with other functional gastrointestinal disorders.
