Long term Micro/Macrovascular complications Flashcards
What are the macrovascular complications of DM?
Coronary vascular disease
Cerebrovascular disease
Peripheral vascular disease
What are the microvascular complications of DM?
Retinopathy
Nephropathy
Neuropathy
What is the relative risk of HF in a diabetic patient?
2.2x higher
How does dyslipidaemia typically present in diabetics?
↑LDL (changed)
↑Triglycerides
↓HDL
How do LDLs act in diabetic patients?
Oxidised/clumped up forms that lead to plaque formation
Why is atherosclerosis worsened in diabetics?
Dyslipidaemia
Endothelial dysfunction
Hypercoagulability
How does ischaemic heart disease present?
MI
Angina
HF
How does peripheral vascular disease present?
Lower limb ischaemia
Ulcers
Poor healing
How is macrovascular disease prevented in DM?
Good Glycaemic control Control BP Control Lipids Smoking cessation Weight loss Exercise
What is non-proliferative diabetic retinopathy?
Retinal capillary dysfunction
Platelet dysfunction
Abnormal blood viscosity
What is proliferative diabetic retinopathy?
Retinal ischaemia
New blood vessel formation
Vitreous haemorrhage
Retinal tears
How is proliferative diabetic retinopathy treated?
Laser photocoagulation
Diabetic retinopathy falls into which classes?
Proliferative and non-proliferative retinopathy
What is proliferation in diabetic retinopathy?
Whether or not new vessels are formed
What proportion of diabetic patients suffer diabetic retinopathy?
After 20 years:
100% type 1
60% type 2
What proportion of registered blind people have advanced diabetic retinopathy?
7%
What is the increase in risk of glaucoma in diabetic patients?
50%
What eye conditions are more common in diabetics?
Retinopathy
Glaucoma
Cataracts
What is the increase in risk of cataracts in diabetic patients?
3x higher risk
What is microalbuminaemia?
Small leak of protein
How does diabetes cause progression to nephropathy?
Microalbuminaemia leading to glomerular basement membrane changes
Mesangial tissue proliferation
Progressive renal impairment
What proportion of diabetics have renal effects?
75%
What proportion of diabetics go onto overt kidney disease?
20%
Renal failure leads to death in what % of diabetics?
21% - Type 1
11% - Type 2
What is the 5y survival rate on dialysis in diabetics compared to non-diabetics?
15% lower
How is nephropathy screened for?
Screening the urine for albumin
How is nephropathy prevented/treated in diabetes?
Screening
Glycaemic control
RAAs blockade - ACEI, ARB
HTN control
What is the most common form of neuropathy in diabetics?
Sensory loss
Lower legs
Paraesthesia
Autonomic
How does diabetes lead to foot infections?
Neuropathy leading to loss of sensation combined with poor peripheral micro-vasculature
What is the common presentation of autonomic neuropathy in diabetes?
GI effects - stomach, SI
CV effects - tachycardia, BP
What other conditions are more common in diabetics?
Sexual dysfunction
Depression (2x higher)