Gastroparesis

What is gastroparesis?

Gastroparesis means the stomach takes too long to empty, and there is no mechanical blockage. Food stays in the stomach longer than it should. NHS information describes nausea, vomiting, early fullness, bloating, and upper abdominal discomfort. Symptoms can fluctuate. It is a recognised motility diagnosis that needs proper assessment.

UK population data come from Ye and colleagues in Gut (2021), using general practice records.

How it differs from functional dyspepsia and GORD

• Functional dyspepsia (FD) is a Rome disorder of gut–brain interaction: post-meal fullness or early satiety (PDS) and/or epigastric pain or burning (EPS) when endoscopy has not found an explanatory disease. Some people with FD have a degree of delayed emptying, but FD is not diagnosed as gastroparesis.
• GORD is reflux of stomach contents causing heartburn or regurgitation. Reflux can sit alongside slow emptying. Heartburn alone is not gastroparesis.
• Gastroparesis needs evidence of delayed gastric emptying (typically a gastric-emptying study) after obstruction has been excluded.

Common symptoms

• Nausea; vomiting of undigested food in some people
• Feeling full quickly, or staying full long after a meal
• Upper abdominal bloating or discomfort
• Reduced appetite; in more severe illness, difficulty maintaining nutrition — that is a reason to seek medical care, not a reason to panic from a webpage

Diabetes is a well-recognised association. Other cases are idiopathic (no cause found) or follow surgery or certain medicines. A clinician has to sort that out. Opioids slow gastric emptying and should be reviewed with the care team — they can worsen delayed emptying. NIDDK also lists smaller, more frequent meals and a review of medicines that delay emptying — including narcotic pain medicines — among usual care. NIDDK, Symptoms & Causes; Treatment for Gastroparesis. https://www.niddk.nih.gov/health-information/digestive-diseases/gastroparesis/symptoms-causes

Approaches people discuss

Gastroparesis care is specialist and stepwise. This is not a gastric-pacemaker shopping list.

• Established Dietetic advice on meal size, texture, and composition, and review of medicines that slow the stomach, led by the care team. NIDDK lists smaller, more frequent meals and review of medicines that delay emptying among usual care — not a reason to stop a prescribed pain medicine from a webpage. Sources: NHS gastroparesis; NIDDK; Guts UK.
• Established Antiemetics and prokinetics when a clinician judges they are appropriate. These are prescription decisions with limits and side-effect monitoring. Sources: NHS gastroparesis; ACG 2022 (PMID 35926490).
• Limited Gastric electrical stimulation ("stomach pacemaker"). NICE has interventional guidance on gastroelectrical stimulation. It is a specialist option for selected, refractory vomiting — not standard first-line NHS treatment and not something every clinic offers. Sources: NICE gastroelectrical stimulation guidance.
• Limited G-POEM (gastric peroral endoscopic pyloromyotomy). An endoscopic procedure studied for refractory disease. Evidence and NHS availability are limited; it is not routine care. Sources: specialist gastroenterology; emerging evidence.
• Limited Botox to the pylorus (gastric botulinum toxin). Limited evidence, not standard NHS care — the same Limited family as G-POEM and gastric stimulators. Sources: specialist gastroenterology; emerging evidence.

Pacemakers, G-POEM, and pyloric Botox should not be described as standard NHS treatment. Most people are managed with dietetic support, medicine review (including opioids), and symptom control first.

Community insights

Anecdotal themes, not outcome statistics:

• Smaller, more frequent meals are widely reported as easier than three large plates.
• People often describe being treated for reflux or “indigestion” for a long time before emptying is measured.
• Flare days and better days are common in stories; that variability is not a reason to dismiss the diagnosis.
• Opioids come up in community stories as something that made fullness and vomiting worse; that is a reason to review them with the care team, not to stop a prescribed pain medicine from a webpage.
• Device surgery comes up in support groups. Lived experience of a pacemaker is not evidence that it is standard care.