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Dr, I have Diabetes, Can I fast?

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Presentation on theme: "Dr, I have Diabetes, Can I fast?"— Presentation transcript:

1 Dr, I have Diabetes, Can I fast?
Dr Majedah AbdulRasoul Assistant Professor Pediatric Department Faculty of Medicine Kuwait University

2 Learning Outcomes Understand what happens in diabetics and non- diabetics during fasting Improve knowledge and understand “ safe fast” during Ramadan Be able to empower patients to make the right decision to avoid risks associated with fasting during Ramadan

3 Muslims around the World
As of 2010, over 1.6 billion or about 23.4% of the world population are Muslims * Growing by ~ 3% per year.  *The Future of the Global Muslim Population. Pew Research Centre. 27 January 2011.

4 Ramadan “O You who believe, fasting is prescribed to you as it was prescribed to those before you so that you can learn Taqwa. For a number of days, but for those who are ill, or on a journey, these days should be made up from days later” Surrah AlBaqara 2: 183

5 Ramadan The 9th months of the Islamic calendar
Fasting in Ramadan is one of the 5 main pillars of Islam Complete fasting during daylight hours for one full Lunar month (29-30days) , for up to 20 hours depending on the geographical location.

6 Exception from fasting
‘ Ramadan is the (month) in which was sent down the Quran as a guide to mankind, also clear ( Signs) for guidance and judgment (between right and wrong). So every one of you who is present (at his home) during that month should spend it fasting, but if any one is ill, or on a journey, the prescribed period (should be made up) by days later. Allah intends every facility for you; He does not want to put to difficulties. (He wants you) to complete the prescibed period, and to glorify Him in that he has guided you; and perchance ye shall be grateful’. Surrah AlBaqara 2: 185

7 Exception from fasting
Illness – Chronic Diabetes Those who can not understand the purpose of fasting- mentally challenged Frail elderly Travelers Women during menstruation, pregnancy, lactation Pre-pubertal children

8 Exception from fasting
Many patients with diabetes insist on fasting during Ramadan, thereby creating a medical challenge for themselves and their healthcare providers It is important that medical professionals be aware of potential risks associated with fasting during Ramadan and approaches to decrease those risks A large epidemiological study of Muslims with diabetes in 13 Muslim countries (the EPIDIAR study) showed that 43% of patients with type 1 and 79% of those with type 2 diabetes fasted during Ramadan. Diabetes Care 2004; 27:2306

9 Back to Basics: CHO Carbohydrate metabolism in healthy persons:
Most of the studies show slight decrease in serum glucose to mmol/L in adults few hors after fasting This may vary depending on: Food habits Differences in metabolism Differences in energy regulation The fall in glucose cease due to: Serum insulin decrease Increase glycogenlysis Serum glucagon and GH increase Increase gluconeogenesis Decrease glycogenesis DeGroot and Jameason 2004 Am J Med 200; 199: 341


11 Back to Basics: Lipids Variable results
Serum total cholesterol and triglycerides may decrease in the first days of fasting, then rise to pre fasting levels Increase in HDL-C Effect may be variable depending on quality and quantity of food consumed. Increase in Apo A-1concentration in both normal and diabetics. Am J Clin Nutr 1982; 30: 351 Saudi Med J 1986; 7: Eur J Clin Nutr 2000; 54:508

12 What happens in Diabetics


14 Most studies are in Type 2
Blood glucose variation in patients with diabetes It may fall, nit change, or rise The variation is due to the amount and type of food consumed and/or decreased physical activity HbA1c values showed no change or even improvement during Ramadan.* The amount of fructosamine, insulin, C-peptide also has been reported no change before and during Ramadan fasting *Int J Clin Pract 2010; 64: Ann Saudi Med 1994; 14:139 *BMJ,2010; 340: BMJ 1993; 307: 292

15 So, Can patients with Diabetes Fast?

16 The bulk of literature indicates that fasting Ramadan is safe for the majority of type 2 diabetic patients with proper education and diabetic management.

17 Type 1 Diabetes? No Fasting

18 Your views?

19 Case 1 18 yrs old teenager Type 1 diabetes since the age of 12yrs
On NPH and Actrapid Because he can not get Lantus Testing his blood glucose at home 2-3 times per day Mean HbA1c this year is 9.4 (was 9.8% last year) He came to you in Shaaban asking about fasting this year. What will you do?

20 Your recommendations:
No fasting for patients with type 1 diabetes. More so if: Poor control On NPH Coming close to Ramadan Have high risk for hyperglycemia, DKA, and hypoglycemia

21 Risks associated with fasting in T1DM
Hypoglycemia: 2-4% of mortality in patients with T1DM More with hypoglycemia unawareness, poor glycemic control and recurrent hypoglycemia in the past needing hospitalization EPIDIAR study: 4.7- fold increase in severe hypoglycemia ( needing hospitalization) in patients with T1DM 3-14 events /100 people/month Diabetes Care 2004; 27:2306

22 Risks associated with fasting in T1DM
Hyperglycemia: No information linking repeated yearly episodes of short-term hyperglycemia and diabetes-related complications during Ramadan. Deteriorate, improve, no change EPIDIAR study: 3 fold increase in severe hyperglycemia with or without ketoacidosis in patients with T1DM (from 5 to 17 events /100 people/month. Due to excessive reduction of insulin to prevent hypoglycemia, increase intake of food and sugar drinks. Diabetes Care 2004; 27:2306

23 Risks associated with fasting in T1DM
Diabetic Ketoacidosis: More in patients with poorly controlled diabetes before Ramadan* The risk is increased because of decreased insulin dose (assuming that food intake is reduced) Risk for dehydration Dose reduction in response to acute infection However, it remains non-conclusive 1.8% of T1DM patients developed DKA during Ramadan, same as non- fasting months.** *Diabetes Care 2004; 27:2306 ** Abusrewil et al 2003 Jamahiriya Med J; 2:99

24 Risks associated with fasting in T1DM
Dehydration and thrombosis: Increased incidence of retinal vein occlusion However, coronary artery events or stoke were not increased in Ramadan Limitation of fluid intake can lead to dehydration Hot and humid climates  increase the risk Also, hyperglycemia  osmotic diuresis  fluid and electrolyte imbalance

25 Risk Categories for Fasting Ramadan In Diabetics: Very High Risk
T1DM Severe Hypos within the last 3 months History of recurrent hypos Hypo unawareness Acute illness Chronic Dialysis Sustained poor control DKA within the last 3 months Pregnancy Hyperosmolar hyperglycemic coma in the last 3 months Intensive physical labor

26 Risk Categories for Fasting Ramadan In Diabetics: High Risk
Moderate hyperglycemia: Average BG , HbA1c 7.5-9% Renal Insufficiency Living alone Drugs affecting mentation Advanced marcovascular complications Co-morbid conditions aggravating the above Old age with ill health

27 Risk Categories for Fasting Ramadan In Diabetics: Mod / Low
Moderate Risk Well controlled treated with short acting insulin, secretagogues Low Risk Well controlled diabetes treated with lifestyle modification, metformin, acarbose, TZD.

28 Case 2 13 yrs old boy Type 1 diabetes since the age of 5 yrs On MDI
Glargine and Novorapid 4-5 times Testing his blood glucose at home 4-6 times per day Mean HbA1c this year improved from 8.5% to 7.1% This year he wanted to fast for the first time He came to you in Rajab with his desire to fast What will you do?

29 Your recommendations:
No fasting for patients with type 1 diabetes. More than 75-80% of our children with type 1 diabetes choose to fast, despite the recommendation, specially if: they have been fasting before diagnosis Have younger siblings who fast Friends who fast If they did not bring the issue of fasting, you should.

30 General consideration:
Assess physical well being Weight on the 50th centile – was 25-50th last yr Height of the 75th centile – same centile for yrs Assessment of metabolic control HBGM 4-6 per day Fasting 5-8mmol/L, occasional 9mmol/L Bed time 10mmol/L 1-2 hypos (at school) over the last month, managed by juice No admission for DKA since the last 3 yrs

31 Your Opinion Now? Your recommendation : No Fasting
If despite recommendation he decide to fast: Discuss s/s of low blood sugar Review management of hypoglycemia Check if they have glucagon Review diet routine with dietician Check blood sugar 4-6 per day Break the fast of blood glucose less than 4mmol/L Break the fast if blood sugar is more than 13, specially with ketones and act with hyperglycemia protocol. May need revision of insulin dose (lantus) in fasting and adjust dose of meal bolus See after 1 week in Ramadan

32 What does the literature say?
A study on 20 patients on MDI mean age of 12.4 yrs (fasting), 10.5 yr (not fasting) Fasting was for 12.5 hours Change in weight, HbA1c, lipid profile before anf after Ramadan Results: No statistical difference in HbA1c (9,2 &9.4% vs &10%, p=0.9), weight or fasting lipids No patient called the helpline and none had intercurrent illness or ketosis AlAlwan etal 2010; Int J Diabetes Mellitus

33 What does the literature say?
A study on 28 patients ( Amiri Hosp, & Royal London Hospital) Ages: 9-18 yr Poorly controlled, recurrent DKA and not willing to do HBGM were excluded. 2 groups (MDI basal bolus regimen vs conventional twice daily (premix at Iftar and short acting at Suhur) Mild Hypo (need to break the fast) Severe hypo (need glucagon or hospital admission) Hyperglycemia (> 15mmol) and DKA No of fasting days AlKhawari etal 2010; Pediatr Diabetes

34 AlKhawari etal 2010; Pediatr Diabetes

35 AlKhawari etal 2010; Pediatr Diabetes

36 AlKhawari etal 2010; Pediatr Diabetes

37 AlKhawari etal 2010; Pediatr Diabetes

38 Conclusions and recommendations:
Adolescents on basal-Bolus regimen can fast if they wish to They should receive sufficient education prior to fasting Increase HBGM CHO count Reduce basal by 10-20%, more if had hypoglycemia If blood Glucose 15  correction given Break fast if: Develop ketones BG < 4mmol Avoid skipping pre-dawn meal

39 Fasting in T1DM on MDI A study with insulin glargine suggest the relative safety and efficacy in relatively well controlled patients who fasted for 18 hours, with minimal decline in mean BG, and only 2 episodes of mild hypoglycemia. Mucha GT etal, Diabetes Care, 2004 A study in patients with type 1 diabetes using insulin Lispro or Aspart instead of regular insulin in combination with intermediate-acting insulin injected twice a day  improved PP glycemia + fewer hypoglycemia Kadiri et al. Diabetes Metab 2001

40 Fasting in T1DM on MDI Insulin Lispro, as a short acting instead of regular insulin , in combination with neutral protamine insulin in a basal bolus regimen  lower 2-h post-prandial glucose level after sunset meal (p = 0.026) with less hypoglycemia (p < 0.01) in an open –label crossover study ( n=64). 3 slides Kadiri et al 2010

41 Can a patient monitor blood sugar while fasting?
Patients should monitor their blood glucose during fast to recognize subclinical hypo and hyperglycemia Islam allows diabetics to have regular blood tests while fasing If blood glucose drops below 4 mmol/L (some recommend 3.5) the fats must be broken If blood glucose goes above 16.5 mmol/L, ketones should be checked, and medical advice sought

42 Case 3 13 yrs old teenager girl Type 1 diabetes since the age of 8 yrs
Was on MDI of glargine and Aspart for 3 years. On insulin pump since 2 years, and CGM since 8 months. Testing his blood glucose at home 2-3 times per day (more if feeling funny!!!) Mean HbA1c this year is 6.9 (was 7.2% last year) He came to you in Shaaban asking about fasting this year for the first time since diagnosed. What will you do?

43 Your recommendations:
No fasting for patients with type 1 diabetes. But: On CSII On CGMS Excellent glycemic control I may allow her to fast

44 What does the literature say?
63 patients, aged 22+/-7 yrs, had diabetes for 9.8+/-5.6 yrs On Medtronic MiniMed 722 for 20+/- 10 months Outcome measures: Days fasting Hypoglycemia Hyperglycemia Emergency visits to the ER Benbaraka et al 2010; Diabetes Technol Ther 12(4)

45 Results: Days fasting: 50% decreased their basal by 5-50%
61.2% fasted the whole month with no problems 18.4% fasted days 16.3% fasted 24-25% 4.1% fasted 23 days 50% decreased their basal by 5-50% 27% had hypoglycemia  break the fast Fasting was broken in 3.8% of potential fasting days No severe hypoglycemia Unusual hyperglycemia in 18.4%, one needed hospital visit 12 had pre and after Ramadan fructosamine level: 4+/-0.6 mmol vs 3.6+/-0.6 mmol/L, p =0.007 Benbaraka et al 2010; Diabetes Technol Ther 12(4)

46 Conclusions: Fasting Ramadan is feasible in patients with T1DM on SCII with adequate counselling and support Benbaraka et al 2010; Diabetes Technol Ther 12(4)

47 What does the literature say?
(2) 21 patients, median age 26 yr, adjusted their insulin in the routine way. All were on CGMS. Outcome measures: Body weight HbA1c Blood glucose Total insulin dose Overriding tendencies Suspend time during fast Hypoglycemia Khalil et al 2012; Diabetes Technol Ther 14(9)

48 Results: Days fasting:
Median days 29 Basal insulin was decreased by 5-20%, no overall sig. Redistribution of insulin based on daily lifestyle and eating times No major hypoglycemia Mild hypoglycemia in 8.4%, managed by basal adjustment or suspension of pump Khalil et al 2012; Diabetes Technol Ther 14(9)

49 Conclusions: The use of CGMS add advantage on CSII in type 1 diabetic patients choosing to fast in Ramadan Khalil et al 2012; Diabetes Technol Ther 14(9)

50 Conclusions & Recommendations (1)
Patients with T1DM are excepted from fasting during Ramadan Those who insist on fasting need to be aware of the associated risks They should adhere to the recommendation of of the healthcare providers to achieve a safe fast.

51 Conclusions & Recommendations (2)
Patients should maintain their strict diabetes routines, as social functions during Ramadan are frequent and food is plenty All patients should have a pre-Ramadan “fasting consultation”. Even those who choose not to fast need dose adjustment. Reviewing symptoms and management of hypoglycemia; ensure the availability of glucagon Doses of insulin should not be omitted, may be reduced based on CHO counting and amount of food

52 Conclusions & Recommendations (3)
Gentle physical activity should be encouraged Over-eating after breaking the fast is to be avoided, specially sweat drinks If hypoglycemia ( <4 mmol if the first few hrs of fasting or <3.3 after that time  breaking fast is mandatory If Hyperglycemia (> 15 mmol) or ketosis develop, breaking fast is mandatory. Temptation to preserve fasting till the end is to be discouraged.

53 Conclusions & Recommendations (4)
Blood glucose testing during the day (noon), before and 2- hrs after Iftar , before Sohur is the minimum in T1DM. Reviewing the achievements and problems to the healthcare givers and receiving feedback is very important at the end of Ramadan

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