How to do IVL on a dog?

How to do IVL on a dog? - briefly

Intravenous lipid (IVL) administration in dogs is an emergency treatment for certain poisonings, such as adverse drug reactions or toxin exposure. To perform IVL, first ensure proper venous access, then slowly infuse a mixture of 20% intralipid solution and heparinized saline at a rate of 5-15 ml/kg/hr, monitoring the dog's vital signs closely throughout the process.

How to do IVL on a dog? - in detail

Intravenous lipid emulsion (IVLE) therapy is an advanced procedure used to manage certain types of toxicities and overdoses in dogs, particularly those involving fat-soluble substances such as tricyclic antidepressants or beta blockers. Administering IVLE requires precision and careful monitoring to ensure the safety and efficacy of the treatment. This detailed guide outlines the steps necessary to perform IVLE therapy on a dog.

Preparation:

1. Assessment: Begin by assessing the dog's condition, including vital signs (heart rate, respiratory rate, temperature), level of consciousness, and any visible symptoms of toxicity.
2. Laboratory Tests: If possible, perform laboratory tests to confirm the type and extent of the intoxication. This may include blood tests for electrolytes, complete blood count, and serum chemistry profile.
3. Equipment Gathering: Collect all necessary equipment, including intravenous catheters, administration sets, lipid emulsion (typically 20% Intralipid), syringes, and monitoring devices such as a pulse oximeter and ECG machine.
4. Sterile Technique: Maintain strict sterility throughout the procedure to prevent infection.

Administration:

1. Venous Access: Establish intravenous access using an appropriate catheter, ideally in a large peripheral vein such as the cephalic or saphenous vein. Ensure the catheter is properly secured to prevent dislodgement.
2. Infusion Rate: Initiate the lipid emulsion infusion at a rate of 0.25-0.5 mL/kg per minute for the first 15 minutes. This initial bolus helps to rapidly bind and inactivate the toxic substance.
3. Monitoring: Closely monitor the dog's vital signs, including heart rate, respiratory rate, blood pressure, oxygen saturation, and electrocardiogram (ECG) readings throughout the infusion. Be prepared to intervene immediately if any adverse reactions occur.
4. Adjustment: After the initial bolus, reduce the infusion rate to 0.125-0.25 mL/kg per minute and continue for at least one hour. Adjust the rate based on the dog's response and the clinical situation. In severe cases, a higher maintenance dose may be required.

Post-Infusion Care:

1. Monitoring: Continue monitoring the dog's vital signs and clinical status for at least 6 hours post-infusion. Prolonged monitoring may be necessary depending on the severity of the intoxication and the dog's response to treatment.
2. Supportive Care: Provide supportive care as needed, including fluid therapy, oxygen supplementation, and management of any additional clinical signs or complications.
3. Follow-Up: Arrange for follow-up care and re-evaluation with a veterinarian to ensure that the dog is recovering appropriately and to address any long-term effects of the intoxication.

Precautions:

1. Contraindications: Be aware of contraindications for IVLE therapy, such as severe hypersensitivity reactions or known allergies to soybean or egg products (common components of lipid emulsions).
2. Interactions: Consider potential interactions with other medications the dog may be receiving. Consult a veterinarian if there are concerns about drug compatibility.
3. Training and Expertise: Ensure that the procedure is performed by trained professionals with expertise in critical care and toxicology, as IVLE therapy requires a high level of skill and understanding of potential complications.

By following these detailed steps, veterinary professionals can effectively administer intravenous lipid emulsion therapy to dogs, enhancing their chances of recovery from certain types of intoxications.