Dr David Squirrell. Consultant Ophthalmologist Greenlane Hospital Auckland. 8:20-8:35 Diabetic Retinopathy - So What's New?

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1 Dr David Squirrell Consultant Ophthalmologist Greenlane Hospital Auckland 8:20-8:35 Diabetic Retinopathy - So What's New?

2 Diabetic Retinopathy: so whats new in 2018?

3 Diabetes no longer leading cause of blindness thanks to screening and new treatments

4 Basics.

5 Pathogenesis. Capillary wall Damage Capillary Closure. ISCHAEMIA Capillary wall Damage Capillary permeability: OEDEMA

6 Pathogenesis. Capillary wall Damage Capillary Closure. ISCHAEMIA Endothelial Growth factors Capillary wall Damage Capillary permeability: OEDEMA

7 Pathogenesis. Capillary wall Damage Capillary Closure. ISCHAEMIA Fibrovascular proliferation Endothelial Growth factors Capillary wall Damage Capillary permeability: OEDEMA

8 Pathogenesis. Capillary wall Damage Capillary Closure. ISCHAEMIA Fibrovascular proliferation ADVANCED RETINOPATHY Endothelial Growth factors Capillary wall Damage Capillary permeability: OEDEMA

9 Proliferative DR Severe Non proliferative DR Moderate Non proliferative DR Mild Non proliferative DR No Diabetic retinopathy

10 Proliferative DR Severe Non proliferative DR Moderate Non proliferative DR Mild Non proliferative DR No Diabetic retinopathy

11 Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy Endothelial Growth factors

12 Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy Endothelial Growth factors

13 Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy Endothelial Growth factors

14

15

16

17

18

19 Treatment Capillary wall Damage Capillary Closure. ISCHAEMIA Fibrovascular proliferation ADVANCED RETINOPATHY Glucose, BP Endothelial Growth factors Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy

20 Treatment Capillary wall Damage Capillary Closure. ISCHAEMIA Fibrovascular proliferation ADVANCED RETINOPATHY Glucose, BP Endothelial Growth factors LASER Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy

21

22

23

24

25

26

27

28 Traditional Approach: ( ) 1. Optimise control.

29 Traditional Approach: ( ) 1. Optimise control. 2. Laser treatment

30 Diabetic eye clinic. Laser: Yes/No

31 Todays approach: 1. Personalised care (Big Data).

32 Todays approach: 1. Personalised care (Big Data). 2. AntiVEGF treatment

33

34 The development of Mild non proliferative diabetic retinopathy is a significant event representing end organ damage.

35 1% Increase in HbA1C 14% increase in risk of progression to PDR. HbA 1 c 12% HbA 1 c HbA 1 c 8%

36 Every 1% HbA 1 c = 10% risk of progression to PDR HbA 1 c 12% HbA 1 c HbA 1 c 8%

37 HbA 1 c 12% AND foot ulcers. HbA 1 c 12%

38 Stage of retinopathy 6% HbA1c 12%

39

40 Treatment of diabetic retinopathy and maculopathy. Capillary wall Damage Capillary Closure. ISCHAEMIA Fibrovascular proliferation ADVANCED RETINOPATHY Glucose, BP Endothelial Growth factors LASER Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy

41 Treatment of diabetic retinopathy and maculopathy. Capillary wall Damage Capillary Closure. ISCHAEMIA Fibrovascular proliferation ADVANCED RETINOPATHY Glucose, BP Endothelial Anti VEGF Growth factors Capillary wall Damage Capillary permeability: OEDEMA Diabetic Maculopathy

42 Vision 6/36

43 4 antivegf injections (avastin). 6/18

44 4 antivegf injections (avastin). 6/18 7 antivegf injections (avastin). 6/9

45

46

47 Which antivegf and Protocol T

48 Which antivegf and Protocol T

49 Protocol I: VA outcomes at 5 years. RbZ groups Median number of injections Year 1 Year 2 Year 3 Year 4 Year 5 Anti VEGF

50 Protocol I: VA outcomes at 5 years. RbZ groups Median number of injections Year 1 Year 2 Year 3 Year 4 Year 5 Anti VEGF

51 Protocol I: VA outcomes at 5 years. RbZ groups Median number of injections Year 1 Year 2 Year 3 Year 4 Year 5 Anti VEGF

52 Protocol I: VA outcomes at 5 years. RbZ groups Median number of injections Year 1 Year 2 Year 3 Year 4 Year 5 Anti VEGF

53 The numbers game. Each patient requires on average 8 treatments in year 1, 2 in year 2 and 1 in year patients: 800 treatment episodes in year treatment episodes year 3 and beyond.

54

55

56

57

58 Small improvements in a persons diabetic control can pay big dividends over time. Mild NPDR is not MILD, it represents end organ damage Outcomes from diabetic eye disease have improved hugely in the past 5 years. David Squirrell But treatment is, at least in the first 2 years, more intensive for the patient and the provider.

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