S
SCOPE.vet
โ† ๐Ÿถ Dogs
๐Ÿถ DogsEmergency topic

Bloat (GDV) in Large-Breed Dogs

The number one emergency in large and giant breeds. Every minute matters.

What it is

Gastric Dilatation-Volvulus (GDV, "bloat") is when the stomach fills with gas and twists on itself. It cuts off blood supply to the stomach and major vessels. Without surgical intervention, most dogs with GDV die within hours.

Who's at risk

Signs โ€” recognise them fast

Classic presentation:

Later signs (dog is in shock):

What to do โ€” immediately

  1. Go to the nearest open vet or emergency clinic NOW. Do not wait. Do not try home remedies.
  2. Call ahead if possible so they prepare.
  3. Do not give food, water, or anything by mouth.
  4. Keep the dog calm and still during transport.

What happens at the vet

Immediate stabilisation (IV fluids, pain relief, decompression), X-rays to confirm, and emergency surgery to untwist the stomach and tack it permanently to the abdominal wall (gastropexy).

Survival rates with prompt treatment: 70-90%. Without surgery: near 100% mortality.

Prevention

This is not a wait-and-see situation

If you see unproductive retching + a swollen belly in a large-breed dog, go. Every minute matters.

Sources
JC
Reviewed by
Jason Chuei, BVetMed (Bristol)
Founder & Editor, SCOPE.vet ยท Updated 2026-04-24

Related guides

Not sure if it applies to your pet?

Run through a personalised triage โ€” takes under 3 minutes.

Check my pet's symptoms โ†’