Gastric dilatation-volvulus (GDV) in dogs is a life-threatening emergency that requires immediate veterinary intervention. There is no home treatment. The stomach fills with gas and rotates on itself, cutting off blood flow to the stomach wall and compressing major blood vessels that return blood to the heart. Without surgery, GDV is fatal. With prompt treatment, about 86% of dogs survive.
If your dog is showing signs of GDV right now, stop reading and go to an emergency veterinary hospital. Every minute matters. What follows is a guide to what that treatment looks like so you know what to expect.
Recognizing GDV Before Treatment Starts
The hallmark signs of GDV include a visibly bloated, tight abdomen and repeated attempts to vomit that produce nothing. Dogs will often pace, drool excessively, pant, and seem unable to get comfortable. Some adopt a “praying” position with their front legs stretched forward and chest low to the ground. As the condition worsens, gums turn pale, and the dog may become weak or collapse.
At the veterinary hospital, your dog will get blood work, abdominal X-rays, and typically an ECG to check for heart rhythm abnormalities. The X-ray is what confirms the diagnosis: a rotated, gas-filled stomach has a distinctive appearance that tells the veterinarian whether this is simple bloat (gas without twisting) or a true volvulus.
Stabilizing the Dog Before Surgery
Surgery is the definitive treatment, but operating on a dog in cardiovascular shock is dangerous. The first priority is stabilization, which focuses on two things: relieving the pressure inside the stomach and restoring blood volume.
The twisted stomach compresses the large veins that carry blood back to the heart, so blood pressure drops rapidly. Your veterinarian will place an IV line, often in the jugular vein, and begin aggressive fluid therapy to counteract shock. This typically involves large volumes of balanced electrolyte solutions delivered quickly. Some hospitals use a concentrated saline solution first because it can restore blood pressure faster with a smaller volume, then follow with standard fluids.
To decompress the stomach, the veterinary team will use one of two methods, sometimes both. The first is passing a long tube through the mouth into the stomach, which allows gas and fluid to escape. This works in about 75% of cases. The second is trocarization, where a large-bore needle is inserted through the skin directly into the stomach at the point of greatest distension to release trapped gas. Both methods have high success rates and low complication rates, and the choice usually comes down to the clinician’s experience and what the dog’s condition allows.
Decompression alone often produces a visible improvement. Once gas pressure is released, blood flow to the heart improves, and the dog’s cardiovascular status can stabilize enough for anesthesia.
What Happens During Surgery
Once stable, the dog goes to surgery for two purposes: correcting the twist and permanently attaching the stomach to the body wall so it cannot rotate again.
The surgeon opens the abdomen, manually untwists the stomach, and then carefully inspects the tissue. This is the critical moment. If the blood supply was cut off long enough, portions of the stomach wall may have died. The surgeon evaluates the color, thickness, and bleeding of the tissue to judge whether it is still viable. If a section of the stomach has become necrotic, it must be surgically removed. Dogs with extensive necrosis, affecting more than half to two-thirds of the stomach, face a much grimmer prognosis, and some are euthanized on the table when the damage is too severe to survive.
The spleen sits close to the stomach and shares some of its blood supply, so it can also lose blood flow during a volvulus. If the spleen is damaged or its vessels are torn, it may need to be partially or fully removed during the same surgery.
Gastropexy: Preventing It From Happening Again
The final and arguably most important step of surgery is the gastropexy. This procedure creates a permanent adhesion between the stomach and the abdominal wall so the stomach is physically anchored in place. The most common technique, incisional gastropexy, involves making matching incisions in the outer muscular layer of the stomach and the abdominal wall muscle, then suturing them together. As the tissue heals, it forms a strong, lasting bond.
Without gastropexy, recurrence rates are high. With it, the stomach can still bloat with gas, but it cannot twist, which is what makes GDV lethal. Gastropexy is considered standard of care for any dog undergoing GDV surgery.
Post-Operative Monitoring
The 48 hours after surgery are a high-risk window. Your dog will stay in the ICU for continuous monitoring, and here’s why: heart rhythm abnormalities develop in 40% to 70% of dogs after GDV surgery. The most common type is premature ventricular contractions, where the heart’s lower chambers fire out of sync. Sporadic irregular beats may not need treatment, but sustained or worsening arrhythmias can become dangerous and require medication to stabilize the heart rhythm. Continuous ECG monitoring typically runs for 24 to 48 hours after surgery.
Other complications the veterinary team watches for include infection, continued tissue death in the stomach wall that wasn’t apparent during surgery, clotting disorders related to the shock episode, and kidney problems from the period of reduced blood flow. Your dog will remain on IV fluids and pain management throughout this period.
Recovery and Feeding After Surgery
Food and water are reintroduced gradually. Most veterinary teams will offer small amounts of water first once the dog is fully awake and no longer nauseous, then transition to small, frequent meals of bland food over the following days. The stomach has been through significant trauma, and feeding too much too soon risks vomiting, which puts stress on the surgical site.
Most dogs that survive the first 48 to 72 hours go on to make a full recovery. Hospital stays typically last three to five days depending on the severity of the case and whether complications arise. At home, you can expect activity restrictions for several weeks while the abdominal incision and the gastropexy site heal.
Preventing GDV in High-Risk Dogs
GDV overwhelmingly affects large and giant breed dogs with deep chests: Great Danes, German Shepherds, Standard Poodles, Weimaraners, Saint Bernards, and similar breeds. If you own one of these breeds and your dog has never had GDV, prophylactic gastropexy is worth discussing with your veterinarian. This is the same stomach-anchoring procedure performed during GDV surgery, but done electively, often at the time of spaying or neutering.
The numbers are striking. Prophylactic gastropexy reduces the risk of dying from GDV by anywhere from 2-fold to nearly 30-fold depending on the breed, with Great Danes seeing the greatest benefit. The procedure can now be performed laparoscopically through small incisions, which means a shorter recovery than traditional open surgery.
Other commonly recommended precautions include feeding two or three smaller meals instead of one large meal, avoiding elevated food bowls (despite older advice to the contrary), limiting vigorous exercise immediately before and after eating, and avoiding dogs that are known to eat extremely fast from gulping air along with their food. These measures may reduce risk, but gastropexy is the only intervention proven to prevent the volvulus itself.