Gastric dilatation-volvulus is the emergency most worth knowing about in advance, because the window between the first sign and a dead dog can be measured in hours, and because the early presentation is easy to dismiss.
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What happens
The stomach fills with gas and distends — that is the dilatation. In many cases it then rotates on its axis, which is the volvulus.
The rotation seals both the entrance and the exit, so the gas cannot escape. The stomach continues to swell, compressing the major veins returning blood to the heart. Blood pressure collapses. The stomach wall loses its blood supply and begins to die. The spleen, attached to the stomach, is dragged round with it.
Without surgery, this is fatal. With prompt surgery, survival rates are good — often quoted above 80 percent — and they fall sharply with every hour of delay.
The signs
Early, and easily missed:
- Restlessness and pacing. Unable to settle, getting up and down repeatedly
- Unproductive retching. Trying to vomit and bringing up nothing, or only white foam. This is the classic sign
- Drooling, often heavily
- Looking at or nudging their own abdomen
- Stretching into a praying position — front end down, back end up
- Obvious discomfort without an obvious cause
Later:
- A visibly swollen, hard, drum-tight abdomen, usually behind the ribs on the left
- Rapid shallow breathing
- Pale gums
- Weakness, collapse, shock
Which dogs
Risk rises with depth and narrowness of chest more than with size as such.
Highest risk breeds include Great Danes — with a lifetime risk estimated at up to one in four in some studies — Standard Poodles, Weimaraners, Irish Setters, Gordon Setters, Saint Bernards, Boxers, Doberman Pinschers, German Shepherds, Bloodhounds and Irish Wolfhounds.
Other risk factors identified in research:
- Age. Risk increases with each year
- Having a first-degree relative who bloated — a strong genetic component
- Being underweight
- Eating rapidly
- One large meal a day rather than divided meals
- A fearful or anxious temperament, which is one of the more consistent findings
- Stressful events — kennelling, travel, a change of household
What prevention is actually supported
The advice in this area has shifted, and some of what people still repeat is no longer well supported.
Supported:
- Feed two or three smaller meals rather than one large one
- Slow down fast eaters. A maze bowl or puzzle feeder is a simple intervention
- Avoid stressful situations around mealtimes, and feed separately in multi-dog households where competition causes gulping
- Prophylactic gastropexy for the highest-risk breeds. This is a surgical procedure, often done at the same time as neutering, that tacks the stomach to the abdominal wall. It does not prevent dilatation but it largely prevents the life-threatening rotation. For a Great Dane or a Wolfhound it is worth a serious conversation with your vet
Weak or contested:
- Raised food bowls. Once recommended, but a large study found elevated bowls were associated with *increased* risk in large and giant breeds. The advice has effectively reversed
- Restricting exercise before and after meals. Widely advised and intuitively sensible; the evidence is thin. Most vets still suggest avoiding vigorous exercise for an hour either side, on the grounds that it costs nothing
- Avoiding water around meals. Not supported. Dogs should have access to water; just avoid a single enormous gulped drink immediately after exercise
- Specific ingredients. Some studies have linked certain dietary fats and a very small kibble size to risk, but the findings are inconsistent
Outward Hound Fun Feeder Slo Bowl
A maze bowl that extends a meal from seconds to minutes. For a deep-chested dog who inhales food, this is one of the few cheap, practical risk-reduction steps available.
KONG Wobbler Treat Dispenser
Dispenses a full meal gradually as the dog nudges it, which slows eating considerably and adds mental work. Use it for one of the day’s meals rather than both, so eating does not become a constant demand.
What to do if you suspect it
- Ring the vet immediately and say you suspect bloat or GDV. Most practices will tell you to come straight in
- Go. Do not wait for confirmation of symptoms
- Do not give food, water or anything by mouth
- Do not try home remedies. There is no home treatment
- Keep the dog as calm and still as possible in the car
- If you have a long journey to an emergency practice, ring ahead so they can prepare
What treatment involves
Stabilisation first — intravenous fluids, pain relief, and decompression of the stomach with a tube or a needle through the body wall to release gas.
Then surgery: the stomach is untwisted, the stomach wall and spleen are assessed for damage and removed if necrotic, and a gastropexy is performed to prevent recurrence. Without a gastropexy, recurrence rates are very high.
Recovery involves several days of hospitalisation, and complications — particularly cardiac arrhythmias — are common in the first 72 hours.
Worth doing today
If you own a high-risk breed:
- Know the signs, and make sure everyone in the house does
- Know where your nearest 24-hour emergency practice is and how long it takes to reach
- Have the number saved
- Ask your vet whether a prophylactic gastropexy makes sense for your dog
It is a short conversation, and for some breeds it is the single most valuable one you will have.
