Suspected GDV in a Boxer
A 3-year-old castrated male Boxer weighing 28 kg is brought in at 9 pm with a 2-hour history of retching and a distended abdomen. The owner says the dog ate a large meal and then ran in the yard. The dog is salivating, restless, and attempts to vomit without producing anything. Heart rate is 160 beats/min, femoral pulses are weak, CRT is 2.5 seconds, and mucous membranes are pale. Respiratory rate is 40 breaths/min. The dog has not vomited any food, and the abdomen is tympanic on percussion. A right lateral radiograph shows a gas-distended stomach with a compartmentalized pattern and a pyloric gas shadow displaced to the left of midline. The veterinarian is finishing an emergency cesarean section and will be available in 10 minutes. The clinic has 0.9% saline, LRS, synthetic colloid, a stomach tube, and a trocar.
1. What are your first three actions, and why is immediate gastric decompression not necessarily first?
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First: provide oxygen and place a large-bore IV catheter; second, begin aggressive crystalloid resuscitation (for example, 20–30 mL/kg bolus, reassessing every 10–15 minutes) and provide analgesia; third, assess rhythm and blood pressure and prepare for decompression. Gastric decompression is urgent, but in a shocky dog, perfusion and oxygenation come first because the stomach is not the immediate cause of death-hypoperfusion and arrhythmia are. Do not delay decompression unnecessarily; if the dog is deteriorating, decompress while fluids are running. Avoid heavy restraint or stress, which can worsen arrhythmias. The veterinarian should be updated immediately.
2. How would you perform gastric decompression, and what complications do you monitor for?
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Pass an orogastric tube after placing a mouth gag and measuring the tube from the nose to the last rib. Lubricate and advance gently; if resistance is met, do not force. If orogastric intubation fails and the stomach is severely distended, percutaneous trocarization may be performed by the veterinarian at the site of maximal tympany, using a large-bore needle or trocar, while monitoring for perforation. Complications include gastric perforation, peritonitis, hemorrhage, aspiration, and re-inflation. Monitor ECG, blood pressure, and respiratory status throughout. Decompression improves venous return but does not replace surgery.
3. The owner asks why the dog cannot just be watched at home after decompression. What do you say?
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Decompression is only temporary. The stomach can re-dilate, and the dog remains at risk for recurrence, gastric necrosis, arrhythmias, and sepsis. Definitive treatment is surgery to inspect the stomach, remove any necrotic tissue, and perform a gastropexy to prevent rotation. Watching at home would be dangerous because the dog could deteriorate rapidly. The owner should be told that surgery is recommended and that the dog will need postoperative monitoring.