Diabetes Complications Avoidance and · PDF fileDiabetes Complications: Screening, Avoidance...
Transcript of Diabetes Complications Avoidance and · PDF fileDiabetes Complications: Screening, Avoidance...
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Diabetes Complications:
Screening, Avoidance and
Management
Eric L. Johnson, M.D. Associate Professor
Department of Family and Community Medicine
UNDSMHS
Assistant Medical Director
Altru Diabetes Center
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Objectives
• Identify potential diabetes complications
• Screen for diabetes complications
• Implement guideline based management
of diabetes complications
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Diabetes Guideline Management
• AACE: Endocrine Practice 2011;17
(suppl2)
• ADA: Diabetes Care January 2012; 35
(Supplement 1)
• Both Guideline sets recommend
comprehensive approach for risk factors
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Diabetes Complications
• Cardiovascular disease
– Coronary Heart disease (CHD)
– Stroke
– Peripheral arterial disease (PAD)/amputation
Macrovascular Complications
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Diabetes Complications
• Eye disease (retinopathy)
• Kidney disease (nephropathy)
• Nerve disease (neuropathy)
Microvascular Complications
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Diabetes Complications
• Liver disease (NAFLD, NASH)
• All cause mortality risk
Other complications
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Diabetes and All-Cause Mortality
• Diabetes deaths annually in the U.S.
~233,000
• Meta-analysis 97 studies 820,900 people
• HR 1.8 death from any cause
• HR 1.25 death from cancer
• HR 2.32 death from vascular disease
• HR 1.73 death from any other cause
Emerging Risk Factors Collaboration. N Engl J Med 2011, 364(9): 829-41 HR=hazard ratio
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Diabetes and All-Cause Mortality
Diabetes also associated with death from: • Pneumonia and other infectious diseases
• Mental disorders
• Nonhepatic digestive diseases
• External causes and intentional self-harm
• Nervous-system disorders
• COPD
Emerging Risk Factors Collaboration. N Engl J Med 2011, 364(9): 829-41
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Risks for Complications in Diabetes
• Abnormal blood sugar
• Abnormal cholesterol
• Abnormal blood pressure
• Sedentary lifestyle
• Smoking
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Avoiding Diabetes Complications
• Blood glucose control A1C <7%
• Treat cholesterol profiles to targets
– Total cholesterol <200
– Triglycerides <150
– HDL (“good”) >40 men, >50 women
– LDL (“bad”) <100, <70 high risk
• Treat blood pressure to target <130/<80
For most non-pregnant adults
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Avoiding Diabetes Complications
• Lifestyle
- smoking cessation
- exercise/activity
- meal planning
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Diabetes Complications
• First, we’ll discuss A1C and it’s
relationship to complications
• Then, we’ll discuss systems and other risk
factors
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Blood Glucose/A1C
and Relationship to Complications
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A1C
• Many questions about A1C in recent years
with relationship to complications
• Let’s try to sort it out…..
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A1C ~ “Average Glucose”
American Diabetes Association
A1C eAG
% mg/dL mmol/L
6 126 7.0
6.5 140 7.8
7 154 8.6
7.5 169 9.4
8 183 10.1
8.5 197 10.9
9 212 11.8
9.5 226 12.6
Formula: 28.7 x A1C - 46.7 - eAG
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Targets for Glycemic (blood sugar) Control
In Most Non-Pregnant Adults
ADA AACE
A1c (%) <7* ≤6.5 Fasting (preprandial) plasma
glucose 70-130 mg/dL <110 mg/dL
Postprandial (after meal)
plasma glucose <180 mg/dL <140 mg/dL
• American Diabetes Association. Diabetes Care. 2012;35(suppl 1) • Implementation Conference for ACE Outpatient Diabetes Mellitus Consensus Conference Recommendations: Position Statement
at http://www.aace.com/pub/pdf/guidelines/OutpatientImplementationPositionStatement.pdf. Accessed January 6, 2006. • AACE Diabetes Guidelines – 2002 Update. Endocr Pract. 2002;8(suppl 1):40-82.
*<6 for certain individuals
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Adapted with permission from Skyler J. Endocrinol Metab Clin North Am. 1996;25:243
DCCT Research Group. N Engl J Med. 1993;329:977
Re
lative
Ris
k
Retinopathy
Nephropathy
Neuropathy
Microalbuminuria
A1C (%)
15
13
11
9
7
5
3
1
6 7 8 9 10 11 12
Type 1 Diabetes: DCCT Microvascular Complications
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Type 2 Diabetes: UKPDS
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Blood Glucose, A1C, and CVD
• ACCORD, ADVANCE,VADT did not show
improved CVD outcomes with A1C less than
~6.0%-6.5%
• ADVANCE confirmed less microvascular
disease (nephropathy) in tightly controlled
• Other data suggest post-prandial, variable
glucose, difficult to target may contribute to CVD
• Lower A1C associated with less microvascular
disease (nephropathy, neuropathy, retinopathy)
(UKPDS, DCCT) N Engl J Med 2008; 358:2560-2572
N Engl J Med 2008; 358:2545-2559
N Engl J Med 2009; 360:129-139
Diabetes Care October 2011 34 (10) 2237-2243
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Blood Glucose, A1C, and CVD
• Recent study showed A1C=6 or >8,
higher CVD risk
• Meta-analysis of Five Trials
UKPDS2, PROactive3, ADVANCE4, ACCORD5, VADT6
Intensive therapy reduced cardiovascular
death, but not all cause mortality
Colayco DC et al Diabetes Care. 2011;34(1):77-83
Ray K et al The Lancet. 2009; 373:1765 - 1772
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A1C and Complications
• So?
• What Now?.......
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A1C and Complications
• Data suggests lower A1C’s earlier in
course of diabetes beneficial
• Long term poor control may not benefit
from more stringent control now,
particularly with reference to CVD
Diabetes Care January 2009;32 (1) 187-192
Ann Intern Med. 2011 Apr 19;154(8):554-9.
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Summarizing
Blood Glucose, A1C, and Diabetes
Complications • A1C
Probably more associated with microvascular
complications
• Glucose variability, post-prandial glucose
Probably more associated with macrovascular
complications
• Optimal A1C may be unclear for all patients with
CVD risk
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Optimal A1C
• Age
• Co-Morbid Conditions/Complications
• Length of Diabetes
• Resources
• Ability to manage complex regimens
• Hypoglycemia
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Rethinking Glycemic “Control”
Importantly, utilizing the percentage of
diabetic patients who are achieving an
HbA1c
of <7.0% as a quality indicator,
as promulgated
by various health care organizations,
is inconsistent with the emphasis
on individualization of treatment goals Diabetes Care 2012 Diabetolgia 2012
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Cardiovascular Disease
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Cardiovascular Disease
• Risk:
– Stroke 2 to 4 times higher
– Heart Disease 2 to 4 times higher
• ~75% of diabetes patients have high blood
pressure (hypertension)
• ~75% of people with diabetes have a dyslipidemia
(cholesterol disease)
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Cardiovascular Disease
• Heart disease and stroke ~65% of
diabetes deaths
• Routine screening of asymptomatic not
recommended
• Treat risk factors (lipids, BP, smoking, etc)
Diabetes Care January 2012; 35 (Supplement 1)
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Lipid Targets
• Treat cholesterol profiles to targets
• Total cholesterol <200
• Triglycerides <150
• HDL (“good”) >40 men, >50 women
• LDL (“bad”) <100, <70 high risk
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Commonly Used Anti-Lipid
Medications • Statins
– Potent
– Lower total cholesterol, LDL most effectively
– Cut CVD risk by ~30%
• Fibrates
– Target triglycerides
– Often used in combo with Statins
– Benefit uncertain in TG’s <400?
• Niacin
• Omega-3 fish oils
• Colesevelam (Welchol)
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Blood Pressure Goals
• <130/<80 for most adults with
diabetes
• Individual targets may vary
(elderly, etc)
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Common Anti-Hypertensives
• ACEI: Lisinopril (Prinivil), Ramipril (Altace), others
• ARB: Valsartan (Diovan), Losartan (Cozaar),others
• Beta-Blockers: atenolol, metoprolol (Toprol), carvedilol (Coreg-mixed function),others
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Common Anti-Hypertensives
• Calcium Channel Blockers- Amlodipine (Norvasc), Verapamil (Covera, Verelan), Diltiazem (Cardizem),others
• Diuretics- Hydrochlorothiazide,others
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Hypertension Medications
• ACEI and ARB medications are initial
drugs of choice for HTN in DM
• Benefit of lowering blood pressure,
reducing heart attack, stroke, and kidney
disease
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Diabetes and Cardiovascular Disease
• Aspirin Therapy is indicated in DM
Men >50 y/o, Women >60 y/o
or 10 year CVD risk >10% (consider risk of GI bleed, etc.)
• 81-325mg daily depending on risk factors and co-morbidities
• CV risk reduction 15-50%
• Smoking cessation
• Lifestyle Diabetes Care January 2012; 35 (Supplement 1)
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Diabetes and
Cardiovascular Disease • Death rates for cardiovascular disease in
diabetes are declining in North Dakota
– Men: CHD 8.7/1000 >> 6.5/1000
Stroke 1.2/1000 >> 0.75/1000
– Women: CHD 6.1/1000 >> 4.4/1000
Stroke 1.4/1000 >> 0.5/1000
• Better recognition and treatment?
Journal Diab Compl March-April 2009
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Children with DM
Hypertension and Lipids • Lipids: start screening in childhood if
strong FH, or at age 10
• Hypertension: BP >90th percentile for
height and weight or >130/>80
• Consider medications (statins, ACE) if
necessary
American Diabetes Association. Diabetes Care. 2012;35(suppl 1)
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Peripheral Arterial Disease
(PAD)
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Peripheral Arterial Disease
• Blockage of arteries in legs
• Contributing factor to amputations in diabetes:
– ~60% of lower limb amputations occur in people with diabetes
– ~71,000 lower limb amputations annually in people with diabetes
– Amputation rate is 10 times higher in diabetes
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Peripheral Artery Disease:
Avoidance
• A1C <7%
• Treat same risk factors as heart attack
and stroke
– Treat to target blood pressure
– Treat to target cholesterol
– Daily aspirin
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Peripheral Arterial Disease:
Treatment
• “Bypass” surgery (usually femoral artery to popliteal artery)
• Medications
– Aspirin daily
– Clopidogrel
• Amputation for severe disease
– Tissue death
– Severe infection (“gangrene”)
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Nephropathy
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Diabetic Nephropathy
• Characterized by proteinuria
• Prevalence 15-40% in type 1
• Prevalence 5-20% in type 2
• More common in African Americans,
Asians, and Native Americans
• Associated with risk of CVD
NKF
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NKF-K/DOQI Stages of CKD
Stage Description GFR
(mL/min/1.73m2)
1 Kidney damage with
normal or GFR
> 90
2 Mild GFR 60-89
3 Moderate GFR 30-59
4 Severe GFR 15-29
5 Kidney Failure < 15 or dialysis
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Nephropathy Avoidance
• Optimize blood glucose control
• Optimize blood pressure control
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Nephropathy
Screening/Avoidance/Treatment • Annual microalbumin and serum creatinine
screening
• A1C <7.0
• BP’s <130/<80, weight reduction, lipid control, avoidance of NSAIDS if possible, tobacco cessation
• Usually treated with ACEI or ARB, other BP meds if needed, dietary sodium and protein restriction
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Retinopathy
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Diabetic Retinopathy
• Non-proliferative diabetic retinopathy
(NPDR), microaneurysms only
• Proliferative diabetic retinopathy,
neovascularization or vitreous/preretinal
hemorrhage
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Retinopathy:
Avoidance/Treatment • A1C <7.0, less glucose variability?
• Annual dilated eye exams/fundal photography by eye care professional
• Screen more frequently in pregnancy or if disease present
• Laser photocoagulation, vitrectomy for overt retinopathy
• New medications on the horizon
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Diabetic Eye Disease-
Other Conditions • Cataracts
• Macular edema
• Glaucoma
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Neuropathy
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Diabetic Neuropathy
• Diabetic Peripheral Neuropathy (DPN)
• Focal and Mononeuropathies
• Autonomic Neuropathy
• Radiculoplexic Neuropathy-more proximal
• Painful Diabetic Neuropathy
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Diabetic Peripheral Neuropathy
• DPN affects ~60-70% of patients with
diabetes
– Feet typical initial presentation, burning,
tingling, numbness
• Neuropathy contributes to amputations
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Neuropathy: Avoidance
• Optimize glucose control
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Neuropathy: Screening
• Foot inspection
• 10mg filament testing
• 128 hz vibratory testing
• Reflexes
• At least annual or prn
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Neuropathy: Treatment
• Optimize blood glucose control
• Consider other differentials, i.e. B12 deficiency in
metformin users, thyroid
• Anti-seizure meds (gapapentin, pregabelin)
• Tricyclic anti-depressants (amitriptyline)
• Duloxetine-antidepressant with neuropathy indication
• Capsazin creme
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Liver Disease
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Fatty Liver
• NAFLD (non-alcoholic fatty liver disease)
• NASH (non-alcoholic steatohepatitis)
• At least 30% of type 2 patients
• Underdiagnosed
• Current treatment is weight loss, possible
future medication role
• Type 2 also higher risk of hepatitis C
Tolman KG etal Diabetes Care 2007;30: 734-743
Johnson EL Journal of Family Practice 2012
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Fatty Liver
• Usually marked by minor liver function test
abnormalities (alkaline phosphatase, ALT, AST)
• No specific treatment, but metformin, TZD, glp-1,
insulin may improve
• If persistent LFT abnormalities:
-imaging (ultrasound, CT, MRI)
-screen for hepatitis
-consider gastroenterology referral
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Dental
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Dental Issues in Diabetes
• Tooth loss
• Peridontal disease
• Possible cause of diabetes/aggravator of
diabetes/CVD
• Dentist every 6 months
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Tobacco and Diabetes
The Deadly Intersection
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Tobacco and Diabetes
• Smoking is a cause of type 2 diabetes
• Smoking worsens diabetes control
• Smoking increases risk of CVD and other
complications
• Smoking cessation is critical in diabetes
• Refer to ND Quitline/Quitnet, MN Quitplan,
other resources
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Diabetes Clinical Encounters
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Diabetes Clinical Encounters HPI-My EHR Template
Patient comes in today for follow up on type (1 or 2) diabetes
• (Other problem list)
• Home Blood glucose monitoring:
• Ambulatory/Home Blood Pressures:
• Current concerns:
• Last educator appointment:
• Last dietician appointment:
• Last eye appointment:
• Last dental:
• Flu vaccine (seasonal):
• Other recent appointments:
• Complete medication review
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Diabetes Clinical Encounters Review of Systems-My EHR Template
• General: Fatigue/Energy level, appetite,
recent illnesses, polydipsia
• HEENT: Vision change, sore throat, neck
pain/masses
• Cardiopulmonary: CP, dyspnea,
palpitations
• Abdomen: Diarrhea, constipation, pain
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Diabetes Clinical Encounters Review of Systems (cont’d)
• Genitourinary: Polyuria, Dysuria, Urgency,
Frequency, Nocturia
• Musculoskeletal: Muscle or Joint Pain,
Foot or Leg Pain
• Neurologic: Dizzy, Lightheaded,
Parasthesias, Weakness, Pain
• Skin: Rash or other
• Psych: Depression, Anxiety
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Diabetes Clinical Encounters
Physical Exam
• VS: Height, Weight, BP (x2?),Pulse, Tobacco status
• Fundus exam
• Cardiopulmonary
• Carotids
• Thyroid
• Abdomen (enlarged liver-fatty liver)
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Diabetes Clinical Encounters
Physical Exam (cont’d)
• Filament and vibratory testing (feet)
• General foot exam (skin, nails, lesions, color)
• General skin/injection sites
• Other complaint directed
• Growth parameters-children
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Diabetes Clinical Encounters
• Other:
Age appropriate recommendations (cancer screening, etc)
Vaccinations
See patients 2 to 4 times a year
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Diabetes Labs • A1C 2-4 times yearly
• Chemistry panel, to include renal and hepatic
1-2 times yearly, prn
• Urine for microalbumin annually
• CBC annually, particularly if on aspirin and/or
renal disease
• Celiac screening in type 1 periodically
(ever 3 years and prn)
• Thyroid screening usually annual in type 1
Diabetes Care 35:Supplement 1, 2012
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The Diabetes Team
• Physician: Primary Care, Diabetologist,
Endocrinologist
• Mid-level provider: Physician Assistant or
Nurse Practitioner
• Other appropriate specialists (eye, kidney,
heart, psychologist, foot, dentist)
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The Diabetes Team
• Diabetes Nurse Educator or Certified
Diabetes Educator (CDE)
• Registered Dietician
• The patient !
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Team Approach
• Diabetes is a complex condition
• Different team members have different
focus
• Integrate care to individualize care to the
patient
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Summary:
Reducing Diabetes Complications
• A1C < 7% for most non-pregnant adults
• Treat blood pressure to target of <130/<80
• Treat cholesterol profiles to target
• Low dose aspirin for appropriate patients
• Lifestyle changes
– Meal Plan
– Appropriate exercise plan
– Smoking Cessation
• Proper and timely follow-up with providers
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Acknowledgements
• Office of Continuing Medical Education, UNDSMHS
• Department of Family and Community Medicine,
UNDSMHS, Melissa Gardner
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Contact Info/Slide Decks/Media e-mail
http://www.facebook.com/pages/Eric-L-Johnson-MD-North-Dakota-Diabetes/192948937393881
Or search “North Dakota Diabetes” on Facebook
Phone
701-739-0877 cell
Slide Decks (Diabetes, Tobacco, other) http://www.med.und.edu/familymedicine/slidedecks.html
iTunes Podcasts (Diabetes) http://www.med.und.edu/podcasts/ or iTunes>>search UND Medcast (3/1/11 release)
WebMD Page: http://www.webmd.com/eric-l-johnson
Diabetes e-columns (archived):
http://www.ndhealth.gov/diabetescoalition/DrJohnson/DrJohnson.htm