Diabetic Foot: A Surgical Look Hosam Roshdy Zaher, MD, Assistant Professor & Consultant General &...
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Transcript of Diabetic Foot: A Surgical Look Hosam Roshdy Zaher, MD, Assistant Professor & Consultant General &...
![Page 1: Diabetic Foot: A Surgical Look Hosam Roshdy Zaher, MD, Assistant Professor & Consultant General & Vascular Surgery of Mansoura University.](https://reader035.fdocuments.us/reader035/viewer/2022062421/56649e045503460f94af0bcd/html5/thumbnails/1.jpg)
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Diabetic Foot: A Surgical Look
Hosam Roshdy Zaher, MD ,
Assistant Professor & ConsultantGeneral & Vascular Surgery of
Mansoura University
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WHO SHOULD TREAT THE
DIABETIC FOOT?
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Is it a debatable issue?
• General Surgeon
• Vascular Surgeon
• Orthopedic Surgeon
• Plastic Surgeon
• Podiatrist
• May be others?
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The Vascular Surgeon
• Are there pedal pulses?
• Yes, Sir.
• Please refer to General Surgery
• No, Sir.
• Please check with the doppler sounds
• Pedal pulses are audible, Sir
• Please refer to the General Surgeon
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The Vascular Surgeon
• There are no audible Doppler sounds, Sir.
• A~~h, from where you bring me these cases
• Please try with general surgery again!
• Sir, they wont accept this case
• Ok. Ok. Get the patient inn and I’ll see him/her later today or tomorrow
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The Orthopedic Surgeon
• Does the patient has any osteomyelitis?
• Yes, Sir
• Can you try with General Surgery to take
care of this patient
• They wont accept this patient, Sir
• Ok. Ok. Get the patient inn and consult I.D.
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The I.D. Consultant
• Thank you for referral.
• However, I need bone biopsy from the
affected parts
• Please do this and this and this ………
• Antibiotics for at least 6 weeks
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The Plastic Surgeon• Is there any active infection?• Yes, Sir• Please refer case to General Surgery, and if they
need us again they can call us• No, Sir• Ok. We can see the patient later• Next day: By the way where is that patient that
you have called me for yesterday?• He/She is in ward ..and bed..• One week later: Nurse, where is the patient of
Dr……..
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The Podiatrist
• We have a case for you, Sir.
• Ok. Can you call the senior surgical resident to see the patient first and let him call me
• Please.
• Ok., Sir
• Senior resident & Podiatrist: After a very long conversation,
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The Podiatrist
• Ok. Please consult:
• Vascular Surgery &
• Do MRI
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May be Others?
• WHO CARES!
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DIFFERENTIATION OF THE FOOT
HEALTHY FOOTHEALTHY FOOT
• Nerves let you feel pain, vibration, pressure, heat, and cold
• Blood Vessels Carry nutrients and oxygen to your feet to nourish them and help them heal from injuries.
• Bones give your foot shape and help distribute the pressure from your body's weight.
• Joints are the connections between your bones. They help absorb pressure and allow your foot to move. Your arch is a group of joints that provides stability for you entire foot
DIABETIC FOOTDIABETIC FOOT
• Damaged Nerves difficult to feel pain, pressure, heat and cold.
• Blocked Blood Vessels bring fewer nutrients and oxygen to feet sores may not be able to heal.
• Weakened Bones may slowly shift, causing foot to become deformed and changing the way distributes pressure.
• Collapsed Joints, especially a collapsed arch, can no longer absorb pressure or provide stability. The surrounding skin may begin to break down.
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What is a diabetic foot?
• Diabetic foot is a disease complex that can develop in the skin, muscles, or bones of the foot as a result of the nerve damage, poor circulation and/or infection that is associated with diabetes.
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• 15% DIABETIC PATIENTS WILL SUFFER FOOT PROBLEMS
• RISK FACTOR : MAJORITY OF PATIENTS WITH TYPE 2 DM AND LONG STANDING TYPE 1 DM
• 45% OF ALL MAJOR AMPUTATION CAUSED BY DIABETIC FOOT SYNDROME
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• DEATH CAUSED OF FOOT DIABETIC 17-32%
• GOOD DIABETIC FOOT CARE WILL DECREASE AMPUTATION IN ½ - ¾ CASES
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DIABETIC FOOT SYNDROME
FOOT ABNORMALITIES CAUSED BY NEUROPATHY, ANGIOPATHY AND INFECTION IN DIABETES MELLITUS PATIENT’S
Infection
Neuropathy Ischemia
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What is the etiology of diabetic foot ?
Multifactorial• Neuropathy
• Ischemia
• Infection
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Neuropathy affects more than 50% of diabetics
• Sensory loss • Motor loss • Autonomic neuropathy
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Ischemia (PAD)• More than 50% diabetics get
significant atherosclerotic disease
• “Large vessel PAD” – often with tibial involvement with relative sparing of proximal and pedal vessels
• “Microcirculatory” disease – intimal and basement membrane thickening
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Peripheral vascular diseasePeripheral neuropathy
DM
Increase flow regulation
Shunting
Reduced capillary blood flow
motor sensoryAutonomic
pain
proprioception Power
imbalance
Deformity
sweat
Fissuring
Defective response to start foot ulcer and infection
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PATOGENESIS
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Combination of PAD & Neuropathy
Risk of injury• Invasive soft tissue infection• Osteomyelitis• Chronic ulceration• Gangrene
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Clinical presentation • Evidence of PAD Intermittent Claudication Critical limb Ischemia / Ulcers• Evidence of Neuropathy Deformities Ulcers• Infection Cellulitis Invasive soft tissue infection Osteomylitis
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How do patients with PAD present?
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How do patients with neuropathy present?
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How do patients with infection present?
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Evaluation & Management
• Multi-displinary Approach– Diabetologists– Primary Care Physicians – Specialized Nurses– Social Workers– Diabetes Educators– Foot Care Specialists– Physiotherapists/ Occupational therapists – Radiologists– Vascular Surgeons
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DIABETIC FOOT LESION GRADING SYSTEM - WAGNER
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GRADING ULCER(WAGNER
CLASSIFICATION)
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MANAGEMENT GOAL FOR DIABETIC FOOT
• ACUTE :WOUND HEALING SAFE THE FOOT FROM AMPUTATION
• CHRONIC :TO PREVENT RECURRENCY OF WOUND
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Evaluation & Management
• Clinical Assessment – History– Physical Examination
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Evaluation & Management
• Investigation– Plain films / Nuclear Medicine– Non-invasive (Duplex / Digital pressures/ ABI,
CTA, MRA)– Invasive test (Arteriography)
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Investigations
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Investigations
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Ankle Brachial Index
ABI= Ankle SBP(PT or DP)/ Highest Arm SBP
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Ankle Brachial Index
ABI valueIndicates
<0.9Abnormal
0.8 -0.9Mild PAD
0.5 -0.8Moderate PAD
<0.5Severe PAD
<0.25Very Severe PAD
The ABI has limited use in evaluating calcified vessels that are not compressible as in Diabetics
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Toe pressure
Segmental pressure
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Arterial duplex
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Digital Subtraction Angiography
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Treatment
Goals of treating patients with Diabetic Foot
Relief symptomsRelief symptomsImprove quality of lifeImprove quality of lifeLimb salvageLimb salvageProlong survivalProlong survival
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Treatment
• Preventive Measures Patient Education
Local- footwear, cotton socks, nail care can reduce amputation rate by 40 to 80%
Systemic- Risk factors modification
Treatment
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• Patient Education
– Importance of risk factors control– Avoidance of trauma and minor cuts– Proper foot care– Medical visit with early signs of infection or
ulcer development
Treatment
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When to Seek Vascular Surgery Consultation?
Evidence of PAD - Intermittent Claudication - Critical Limb Ischemia Rest Pain Impeding soft tissue compromise Tissue Loss Frank ulceration or gangrene.
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Eradication of Infection• DebridmentDebridment• DrainageDrainage• Minor amputations Minor amputations
Strategies in treating patients with diabetic foot
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Improve Lower Limb Circulation• Conservative (Exercise Program)Conservative (Exercise Program)• Intervention ( Revascularization)Intervention ( Revascularization) - Angioplasty +/- Stenting- Angioplasty +/- Stenting - Surgical Bypass - Surgical Bypass
Strategies in treating patients with diabetic foot
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Percutanous Transluminal AngioplpastyPTA
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Surgical Bypass
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Major amputation• Primary vs SecondaryPrimary vs Secondary• BKA vs AKA BKA vs AKA
Strategies in treating patients with diabetic foot
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Take home message
• Diabetic Foot is a major and an increasing public-health problem
• Etiology is Multifactorial• Multi-displinary approach is the key for better
outcomes
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THANK YOU