dm_dka_sglt2
Table of Contents
SGLT2 inhibitor induced diabetic ketoacidosis (gliflozin DKA)
Introduction
- until the introduction of SGLT2 inhibitors (gliflozins), diabetic ketoacidosis (DKA) only occurred in type I insulin-dependent diabetic patients
- these agents have been shown to cause a potentially life threatening euglycaemic form of diabetic ketoacidosis
- this is thought to occur through the gliflozins reducing circulating glucose load and thereby reducing stimulation of endogenous insulin secretion to a level insufficient to prevent lipolysis
- an additional mechanism may be increased renal tubular reabsorption of ketone bodies which also means reduced ketonuria, and increased glucagon secretion
Prevention
- cease glilozones if:
- surgery
- severe infections
- extreme exertion
- avoid starting gliflozones if:
- high stress
- inadequate CHO intake
- unwell
Diagnosis
- unwell diabetic patient on a gliflozin, and, raised blood ketone levels on fingerprick testing
- blood gases show:
- high anion gap metabolic acidosis with low bicarb and low base excess
- blood glucose levels may be normal or mildly raised and ketonuria may be absent
Mx
- IV line
- FBE, U&E, glucose, LFTs, lipase, troponin, CRP,
- blood gas and lactate
- ECG
- cease gliflozin
- rehydrate
- insulin and dextrose infusion
- may need higher than usual dextrose compared to standard diabetic ketoacidosis (DKA) protocols
- potassium replacement as per standard diabetic ketoacidosis (DKA) protocols
- Rx underlying precipitant such as:
- sepsis / septicaemia - may warrant septic workup
- surgery
- excess alcohol
- low CHO diet
- missed insulin doses
dm_dka_sglt2.txt · Last modified: 2023/10/01 16:27 by gary1