Perioperative medicine Flashcards
In regards to short-acting insulin:
- How to manage it in the perioperative period?
Minor elective surgery
- AM:
Omit dose if breakfast is skipped.
- PM:
Take morning dose, omit lunchtime dose if fasting.
Minor + poor diabetic control
- Stop and switch to variable rate intravenous insulin infusion (VRIII).
Major elective surgery
- Stop and switch to variable rate intravenous insulin infusion (VRIII).
Emergency
- Stop and switch to variable rate intravenous insulin infusion (VRIII).
In regards to long-acting insulin:
- How to manage it in the perioperative period?
Continue
- At reduced dose
- 80% of the usually dose.
Examples:
- Lantus (glagirne).
- Levemir (detemir).
Variable rate intravenous insulin infusion
When to use VRIII in the perioperative period
?
Indicated when:
- A starvation period of more than 1 meal is required;
- If the patient has not received any background insulin (major surgeries);
- Diabetes is poorly controlled.
Perioperative period
In regards to oral diabetic medication:
- Which drugs are safe thorought the perioperative period
?
- Metformin
- Pioglitazone
- DPP-4 inhibitors
- GLP-1 receptor agonists
In regards to oral diabetic medication:
- Which drugs should be omited on the morning of the surgery
?
Sulfonylureas.
In regards to oral diabetic medication:
- Which drugs should be omited throught the whole day of the surgery
?
SGLT2 inhibitors.
What is the recommendation in regards to food and fluids in the pre-operative period?
Foods
- Stop 6h before elective surgery.
Fluids
- Clear fluids can be consumed until 2h prior to surgery.
Clear fluids
- Water
- Tea
- Squash
- Coffee without milk
What is the management of warfarin in the perioperative period?
- It has to be stopped 5 days before ELECTIVE surgery.
**Bridge with heparin if:
- High risk of thromboembolism;
- Venous thromboembolism in the last 3 months.
- AF with previous stroke;
- AF with CHADSVASCs >=5;
- Recent TIA;
- Patients with mechanical heart valves.
What is the management of **DOAC **for an elective surgery?
Stop DOAC 48h before surgery.
What is the management of clopidogrel for an elective surgery?
Stop 7 days prior.
What is the management of HgB before surgery?
Elective
- < 100 postpone and investigate for anaemia;
- < 80 blood transfusion and postpone surgery.
Emergency
- < 100 go ahead with surgery
- < 80 blood transfusion and surgery
What is the perioperative management after MI?
No elective surgery for 6 months after MI.