Gastric Dilatation-Volvulus (GDV) Surgical Process

DigestiveQ&AMeongsiljang Veterinary Advisory Board

Here’s a step-by-step explanation of the entire surgical process for gastric dilatation-volvulus (GDV). From emergency diagnosis to gastropexy and recovery, we’ve included all the essential information pet owners need to know.

What is GDV Surgery?

A veterinarian treating large-breed dogs in the emergency room

Gastric dilatation-volvulus (GDV) surgery is an emergency abdominal procedure that untwists the stomach, returns it to its normal position, and anchors it to the abdominal wall to prevent recurrence. Time is of the essence. Without prompt treatment, the stomach tissue can undergo necrosis, leading to shock and potentially death. If you suspect GDV, seek emergency veterinary care immediately, as delays worsen the prognosis. This is a critical procedure that all large-breed dog owners should be aware of.

Emergency Treatment Comes First Before Surgery

GDV surgery doesn’t start with anesthesia right away. Most dogs arrive at the hospital in shock, so the veterinarian first administers intravenous fluids rapidly and relieves the gas buildup in the stomach. This is done by inserting a tube through the esophagus or by puncturing the abdominal wall with a needle to decompress the gas. Only after checking for arrhythmias and electrolyte imbalances through an ECG and blood tests can the dog be moved to the operating room.

Time Required for Each Step of GDV Surgery

Item	Time Required	Main Content
Emergency Stabilization	30 minutes–1 hour	Fluids, gas decompression, testing
Anesthesia Induction	15–20 minutes	Premedication, intubation
Gastric Repositioning	30–60 minutes	Return the twisted stomach to position
Tissue Assessment	15–30 minutes	Check for gastric wall and splenic necrosis
Gastropexy	20–40 minutes	Fix the stomach to the abdominal wall
Recovery Monitoring	24–48 hours or more	Intensive ICU care

Depending on the dog's condition, the total surgery time takes about 2–4 hours.

What Happens During the Surgery

Once anesthesia is stable, we make an incision in the abdomen and untwist the stomach back to its normal position (gastric derotation). We then carefully assess whether blood flow to the stomach wall has been restored and check for any necrotic tissue. Since the spleen can also become twisted along with the stomach, a splenectomy may be necessary depending on its condition. Finally, we perform gastropexy, which involves suturing the stomach to the abdominal wall to secure it in place. This fixation procedure is the key intervention that significantly reduces the risk of GDV recurrence.

Veterinary medical staff performing abdominal surgery on a dog in the operating room

The Most Critical Moment During Surgery

In cases of GDV, cardiac arrhythmias are very common before and after surgery. Particularly around the time the twisted stomach is returned to its normal position, serious arrhythmias can occur, making this the most critical moment requiring close attention. Therefore, continuous heart monitoring is essential during surgery and for 24 to 48 hours postoperatively. Additionally, electrolyte imbalances such as hypokalemia and hypomagnesemia, which can worsen arrhythmias, must be identified and corrected. Veterinarians keep medications ready in advance to promptly manage any arrhythmias that may arise.

How Does Post-Surgical Recovery Progress?

Immediately after surgery, your dog will need at least 24 to 48 hours of intensive inpatient care, though the stay may be longer depending on their condition. We continuously monitor heart rhythm, blood pressure, and body temperature while administering pain relief and antibiotics. Once pain is well controlled, we gradually introduce hydration with small amounts of water, followed by liquid food and then soft food. After discharge, continue feeding small, frequent meals and resume vigorous exercise only gradually, following your veterinarian’s guidance.

A large-breed dog recovering in the intensive care unit

Post-Surgical Care Points

- Diet Management: Feed small meals 3 to 4 times a day. - Exercise Restriction: Ensure rest for at least one hour after meals, and avoid strenuous exercise for two weeks. - Suture Site Care: Check daily for swelling, redness, or discharge, and keep the e-collar on at all times. - Follow-up Visits: Sutures will be removed in 10 to 14 days, with a follow-up check-up scheduled one month later. - Signs of Recurrence: Contact the clinic immediately if you notice abdominal distension or dry heaving.

Be Sure to Know the Surgical Costs and Prognosis

GDV surgery is a major procedure that encompasses emergency care, anesthesia, and intensive care. The cost and recovery time can vary significantly depending on the veterinary clinic and your dog’s condition. According to veterinary textbooks, the overall mortality rate for GDV is reported to be approximately 10–27%. In other words, while many dogs recover with appropriate treatment, this is by no means a minor surgery. It is well known that the prognosis worsens if treatment is delayed beyond six hours after symptoms appear. Therefore, it is important to identify a trusted 24-hour emergency animal hospital in advance.

Reviewed by a veterinarian

Dr. Tony — Punnawat Phongkittirak

Veterinarian

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.

Frequently Asked Questions

Can't we just relieve the gas instead of performing surgery for GDV?

No, that won’t work. Even if you release the gas, a twisted stomach will keep recurring and lead to tissue necrosis. A gastropexy is necessary to address the issue at its root.

Does surgery guarantee that the condition won’t come back?

Gastric plication significantly reduces the risk of recurrence, though it doesn’t eliminate it entirely. It’s also important to manage your pet’s diet and exercise regimen alongside the surgery.

When can my pet start going for walks after surgery?

Until the sutures are removed, only short bathroom walks are allowed. The stitches will be taken out 10 to 14 days later, and then you can gradually increase your pet's activity level as directed by your veterinarian.

Can senior dogs undergo surgery?

Yes, it’s possible. However, your pet’s heart and kidney health are more important than age alone. We’ll assess the anesthesia risk through pre-surgical tests before making a decision.

Is there also a preventive gastropexy?

Yes, there is. High-risk large-breed dogs prone to GDV may undergo prophylactic gastropexy at the time of spaying or neutering. Please consult your veterinarian to determine whether this procedure is appropriate for your dog and the optimal timing.

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References

[1] Fossum TW, Preoperative and intraoperative care of the surgical patient, Small Animal Surgery 3rd ed., Elsevier, 2007

[2] Small Animal Anesthesia and Pain Management: A Color Handbook, 3rd Edition

[3] Hosgood G, Scholl DT, Evaluation of age as a risk factor for perianesthetic morbidity and mortality in the dog, J Vet Emerg Crit Care, 1998;8(3):222-36

[4] Glickman LT et al., Incidence of and breed-related risk factors for gastric dilatation-volvulus in dogs, J Am Vet Med Assoc, 2000