Gastric Dilatation-Volvulus in Dogs: Welfare Emergency
What Is GDV?
Gastric dilatation-volvulus (GDV, bloat) is a life-threatening condition in which the stomach fills with gas and rotates on its axis, trapping gas and compressing blood vessels. It predominantly affects large and giant deep-chested breeds (Great Dane, German Shepherd, Standard Poodle, Dobermann, Irish Wolfhound, Weimaraner). Splenomegaly occurs as the spleen rotates with the stomach. Without treatment, death occurs within hours through shock, ischaemia, and cardiac arrhythmia.
Welfare Consequences
GDV causes extreme suffering: severe abdominal distension and pain, non-productive retching, hypersalivation, restlessness progressing to collapse, pallor, and shock. Each minute without treatment increases tissue ischaemia and reduces survival probability. It is arguably the most acutely welfare-critical surgical emergency in small animal practice. Owners must recognise signs and access emergency veterinary care immediately — delay of even a few hours can be fatal.
Emergency Stabilisation
Emergency treatment before surgery: IV access in both forelegs (to allow rapid fluid replacement); aggressive IV fluid therapy to treat hypovolemic shock; gastric decompression (trocarisation — needle through flank to release gas, or orogastric tube passage); cardiac monitoring and treatment of ventricular arrhythmias (lidocaine); analgesia (opioids). The goal is to stabilise the patient sufficiently to survive the necessary surgery.
Surgical Treatment
Surgery involves: gastric derotation (returning stomach to normal position); assessment of gastric viability (devitalised tissue requires resection); splenectomy if splenic vasculature is compromised; and gastropexy (surgically attaching the stomach to the body wall to prevent future volvulus). Gastropexy prevents recurrence — without it, 55-80% of dogs that survive GDV will re-volvulus. Prophylactic gastropexy in high-risk breeds at the time of neutering is increasingly recommended.
Prevention and Risk Reduction
Prophylactic gastropexy is the most effective preventive measure for breeds at high risk. Other risk-reduction measures: feeding multiple small meals rather than one large meal; avoiding vigorous exercise immediately before and after meals; raised food bowls are NO LONGER recommended (evidence suggests raised bowls may increase GDV risk); genetic selection against affected lineages. Owners of high-risk breeds should be educated about early GDV signs and the nearest 24-hour emergency veterinary clinic.