Late-Night Gastric Dilatation-Volvulus in a Single-Veterinarian Clinic
A 32 kg, 6-year-old male castrated Great Dane is brought in at 11:40 pm with a 2-hour history of unproductive retching and a progressively distended abdomen. The owner reports the dog ate a large meal and then exercised. On arrival the dog is recumbent, with a heart rate of 190 bpm, weak femoral pulses, pale mucous membranes, a capillary refill time of 3 seconds, a respiratory rate of 48 with shallow effort, and a distended, tympanic abdomen. Rectal temperature is 39.1 C. The practice is a single-veterinarian overnight clinic with one technician on shift, no blood bank, and a referring 24-hour hospital 35 minutes away. The veterinarian is placing an IV catheter and asks you to prepare for decompression. The dog's systolic blood pressure is 70 mmHg by Doppler. Available supplies include lactated Ringer's solution, 7.2% hypertonic saline, 16-gauge and 18-gauge catheters, a gastric tube, and a trocar.
1. What are your priorities in the first 15 minutes, and how would you sequence them?
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This is a surgical emergency with shock. The first priorities are to secure venous access, begin resuscitation, decompress the stomach, provide analgesia, and move toward surgery or transfer without unnecessary delay. I would place two large-bore catheters, ideally 16-gauge, in the cephalic or medial saphenous veins, and start a crystalloid bolus while the veterinarian assesses the abdomen. I would have the gastric tube and trocar ready, but I would not pass a tube before the airway and perfusion are addressed if the dog is unstable.
I would give oxygen by mask or flow-by if tolerated, attach ECG and pulse oximetry, and prepare for a quick blood panel including PCV, total solids, glucose, and electrolytes. I would calculate the shock dose in advance and keep the drugs and supplies for decompression within reach. I would also call the 24-hour hospital early to warn them of a possible transfer, because the 35-minute drive and the single-veterinarian staffing mean that transfer may be the safer definitive plan. I would not spend time on radiographs before stabilizing and decompressing.
2. Calculate the fluid resuscitation plan for this 32 kg dog and explain how you would reassess after each bolus.
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An isotonic crystalloid bolus of 20 mL/kg is 640 mL for a 32 kg dog, given over about 15 to 20 minutes. I would reassess heart rate, pulse quality, mucous membrane color, capillary refill time, blood pressure, and respiratory effort before deciding on a second bolus. If the dog remains in shock, a second 640 mL bolus can be given, and in some protocols a third is considered, but each bolus must be followed by reassessment rather than given automatically.
Hypertonic saline at 4 mL/kg is 128 mL of 7.2% solution, given over 5 to 10 minutes, and it must be followed by isotonic crystalloids because it pulls fluid into the vasculature. I would watch for signs of volume overload, especially increased respiratory effort, coughing, or worsening oxygenation, because this dog is already breathing at 48 breaths per minute. I would record every bolus, the time, and the response on the treatment sheet so the veterinarian and the receiving hospital can see what has been given.
3. How would you advise the veterinarian on surgery versus transfer, and what would you prepare for transport?
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The decision belongs to the veterinarian and the owner, but the technician should frame the logistics clearly. If this clinic can provide definitive surgical decompression and has a surgeon available, stabilization followed by immediate surgery is the goal. If it cannot, the dog should be stabilized as much as possible and transferred to the 24-hour hospital, because a GDV that is only decompressed will recur and the dog can deteriorate during the drive. The 35-minute distance is a real risk, but so is performing major surgery in an understaffed overnight clinic without a blood bank.
I would call the receiving hospital with the weight, blood pressure, heart rate, fluid totals, and estimated arrival time, and confirm that they can accept the case. I would prepare a transport box with the IV lines secured, a fluid pump or gravity set, oxygen if available, a copy of the records, and the owner's contact information. I would have the owner sign consent for transfer and explain the risk in plain language. I would also keep the dog warm and minimize handling during loading, because stress and movement can worsen perfusion.