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1362465129 diabetic foot syndrome an indian perspective
1. DIABETIC FOOT
SYNDROME – An Indian
Perspective –
Apropriate technology
DR. ASHOK KUMAR DAS
DEAN, DIRECTOR-PROFESSOR
& HEAD,
DEPARTMENT OF MEDICINE,
JIPMER, PONDICHERRY
7. PRESENCE OF CALLUS
BLIND OR PARTIALLY SIGHTED
NEPHROPATHY
ELDERLY
POOR UNDERSTANDING OF
DIABETES
INABILITY TO FEEL SEMMES-
WEINSTEIN NYLON MONOFILAMENT
8. TECHNOLOGY &
DIABETIC FOOT
UTILISED MAINLY
SCREENING
DIAGNOSIS OF HIGH RISK FOOT
DIAGNOSIS OF EXTENT OF INVOLVEMENT
PROGNOSTICATION
TREATMENT OF DIABETIC FOOT
9. TECHNOLOGY &
DIABETIC FOOT…
HI TECH EDUCATION
AWARENESS & EDUCATION
PERSONS WITH DIABETES &
DIABETIC FOOT CARE PROVIDERS
viz…diabetic foot pressures & its
improvement with insoles etc.
10. TECHNOLOGY &
DIABETIC FOOT…
Quantification & research
Natural history of Diabetes & its
complications
Drug trials
Evidence based Diabetology Practice
viz …diabetic Neuropathy
11. AREAS & APPLICATION
OF TECHNOLOGY IN
DIABETES PRACTICE
2004Diabetic foot pressure studies:
out of shoe
in shoe
emed
pedomed
f-scan
12. Introduction of opticalpedobiographs &
development of computing technology
microprocessor like recording devices
provide—possibility of identifying patients at
risk of plantar ulceration
give basis for
foot wear prescription & adjustment
surgical intervention
Hi tech education
13. COST
FOOT COSTS A MAJOR
COMPONENT OF DIABETES
RELATED HEALTH-CARE
EXPENDITURE
IN US, COSTS OVER $500 MILLION
PER YEAR
IN UK, OVER £13 MILLION PER YEAR
14. CLINICAL ALGORITHM
R E V IE W R IS K F A C T O R S T A T U S
A T L E A S T A N N U A L L Y
G E N E R A L A D V IC E O N N A IL C A R E ,
H Y G IE N E , P O D IA T R Y , F O O T W E A R
N O R IS K F A C T O R S
R E V IE W F R E Q U E N T L Y
A L W A Y S IN S P E C T F E E T
F O O T C A R E E D U C A T IO N
R E G U L A R P O D IA T R Y
C O N S ID E R N E E D F O R S P E C IA L F O O T W E A R
R IS K F A C T O R S
ID E N T IF IE D
A S S E S S E V E R Y D IA B E T IC F O R R IS K F A C T O R S
15. CLINICAL EVALUATION
ALWAYS PRECEDES ANY
LABORATORY INVESTIGATION
GOOD HISTORY AND THOROUGH
PHYSICAL EXAMINATION WILL
REDUCE NEED FOR MANY
UNNECESSARY AND COSTLY
INVESTIGATIONS
29. DOPPLER USG - MOST WIDELY
USED DEVICE
RANGES FROM A POCKET SIZE
DEVICE TO LARGE, STATIONARY
COMPLICATED DEVICE
AUDIBLE SIGNALS EVALUATED BY
HEAD-PHONES OR LOUD SPEAKER
30. DOPPLER SIGNAL WAVE
FORM
NORMAL ARTERIAL DOPPLER WAVE
FORM IS TRIPHASIC
SYSTOLIC UPWARD DEFLECTION
DIASTOLIC DOWNWARD DEFLECTION
SMALLER UPWARD AND DOWNWARD
DEFLECTION (DIASTOLIC FORWARD
FLOW)
31. ANKLE - BRACHIAL
INDEX
DOPPLER PROBE USED TO MEASURE
SYSTOLIC PRESSURE AT BRACHIAL
ARTERY AND DORSALIS
PEDIS/POSTERIOR TIBIAL ARTERY
NORMALLY, ANKLE PRESSURE /
BRACHIAL PRESSURE = 1 OR SLIGHTLY
ABOVE
ABI CORRELATES WITH SEVERITY OF
ISCHEMIA
32. ABI
ABI OF 0.8 - 0.5 ---
INTERMITTENT CLAUDICATION
ABI OF < 0.5 ---
REST PAIN
A CHANGE OF 0.15 IS CONSIDERED
SIGNIFICANT
33.
34. SEGMENTAL
PRESSURES
USED TO LOCALIZE VASCULAR
OBSTRUCTION
MEASUREMENTS WITH PNEUMATIC
CUFFS ARE MADE FROM
HIGH THIGH
LOW THIGH
BELOW KNEE
ANKLE LEVEL
35. PRESENCE OF GRADIENT
BETWEEN MEASUREMENTS
INDICATES A SIGNIFICANT
STENOSIS OR A COMPLETE
OCCLUSION IN THE ARTERIAL
SEGMENT BETWEEN THE TWO
CUFFS
36. EXERCISE FOR
DIAGNOSIS
CAN UNMASK OBSTRUCTION
CAUSES A DROP IN DOPPLER
PRESSURES DISTAL TO
OBSTRUCTION, AFTER EXERCISE
DIFFERENTIATES VASCULAR FROM
NON-VASCULAR ETIOLOGY FOR
CLAUDICATION
37. ANKLE DOPPLER
PRESSURE
SEVERITY OF LOWER EXTREMITY
ISCHEMIA
SYSTOLIC PRESSURE AT ANKLE
APPROPRIATE SIZED CUFF IS USED
POSTERIAL TIBIAL / DORSALIS
PEDIS
THE HIGHER READING IS TAKEN
38. ANKLE DOPPLER
PRESSURE
ABSOLUTE ANKLE PRESSURE IS
THE BEST PREDICTOR OF LIMB
VIABILITY
> 60 MM HG = 86% OF VIABLE
LOWER EXTREMITIES
< 60 MM HG = 77% OF NON-VIABLE
EXTREMITIES
39. PHOTOPLETHYSMOGRA
PHY
USES A DIODE THAT EMITS INFRA-
RED LIGHT INTO THE TISSUE,
WHICH IS REFLECTED BACK FROM
THE BLOOD IN THE CUTANEOUS
MICROCIRCULATION
TWO MEASUREMENTS
TOE BLOOD PRESSURE
SKIN PERFUSION PRESSURE
40. TOE BLOOD PRESSURE
FALSE HIGH DOPPLER PRESSURES IN
CASE OF CALCIFIED VESSELS
ESPECIALLY USEFUL WHEN THE
PATHOLOGY IN VESSELS IS BELOW THE
ANKLE
BUERGER’S DISEASE
RAYNAUD’S PHENOMENON
LOWER LIMIT OF NORMAL FOR TOE
PRESSURE IS 50 MM HG
41. SKIN PERFUSION
PRESSURE
A GOOD PREDICTOR OF HEALING
OF ULCER AND AMPUTATION SITES
SKIN PERFUSION PRESSURE OF 21
MM HG OR ABOVE FOUND TO
CORRELATE WITH HEALING AND
DECREASED COMPLICATION RATE
OF THE AMPUTATION SITE
44. PULSE AMPLITUDE
ARTERIAL OCCLUSIVE DISEASE IS
MARKED BY DECREASE IN
AMPLITUDE OF THE PULSE WAVE
FORM
AMPLITUDE < 15 MM - FOOT PAIN
LIKELY ISCHEMIC
AMPLITUDE < 5 MM - FOOT ULCER
UNLIKELY TO HEAL
45.
46. TRANSCUTANEOUS
OXYGEN TENSION
(TCPO2)
MODIFIED CLARK ELECTRODE THAT
MEASURES PARTIAL PRESURE OF
O2 THAT DIFFUSES THROUGH SKIN
GOOD ULCER HEALING IF TCPO2 >
35 - 40 MM HG
POOR ULCER HEALING IF TCPO2 <
20 - 26 MM HG
47. LASER DOPPLER FLUX
ALSO CALLED VELOCIMETRY
PROVIDES A DIRECT &
CONTINUOUS MEASUREMENT OF
SKIN CAPILLARY BLOOD FLOW
VELOCITY
SENSITIVITY LESS THAN TCPO2
48. ISOTOPE CLEARANCE
133
XE GAS ISOTOPE TO MEASURE
SKIN BLOOD FLOW
FLOW RATES ABOVE 2.6 ML / 100
GM TISSUE CORRELATED WITH
GOOD HEALING
49. DUPLEX SCANNING
COMBINATION OF REAL TIME B
MODE SONOGRAPHY AND A PULSE
DOPPLER
ALLOWS 2-D VISUALIZATION OF
BLOOD VESSEL WITH
SURROUNDING TISSUES
DETECTS CALCIFIED PLAQUE,
ULCER, THROMBI, ANEURYSMS
50. COLOUR FLOW
DOPPLER
DISPLAY OF FLOW IN VESSELS IN
DIFFERENT COLOURS DEPENDING
ON DIRECTION OF FLOW
ACCURACY OF 77% - 97%
TIME-CONSUMING AND NEEDS
SKILL
54. VASCULAR
EVALUATION - INDIAN
CONTEXTAT PRIMARY HEALTH CARE LEVEL,
CLINICAL EVALUATION OF UTMOST
IMPORTANCE
“ALWAYS INSPECT THE FOOT OF A
DIABETIC PATIENT”
PALPATE FOR THE PULSE - DORSALIS
PEDIS, POSTERIOR TIBIAL
IDENTIFY & REFER A HIGH-RISK FOOT TO
NEAREST TERTIARY CARE CENTRE
55. VASCULAR
EVALUATION AT AN
INDIAN TERTIARY CARE
CENTRETHOROUGH CLINICAL EVALUATION
ABI WITH DOPPLER ESSENTIAL AND
AFFORDABLE
INTEGRATED APPROACH- TO LOOK
FOR OTHER RISK FACTORS
61. NERVE FUNCTION
EVALUATION- INDIAN
PERSPECTIVEAT PHC LEVEL, CLINICAL EVALUATION OF
LIGHT TOUCH WITH COTTON HAIR
VIBRATION WITH TUNING FORK AND
TEMP WITH WARM / COLD WATER
AT TERTIARY CENTRES,
BIOTHESIOMETRY AFFORDABLE AS
ALSO NYLON MONOFILAMENTS
FOR AUTONOMIC NEUROPATHY,
CARDIOVASCULAR TESTS WELL
DESCRIBED & EASY TO PERFORM
62. CARDIOVASCULAR
TESTS FOR AUTONOMIC
NEUROPATHY
HR RESPONSE TO VALSALVA
MANOEUVRE
HR RESPONSE TO STANDING UP
HR RESPONSE TO DEEP
BREATHING
BP RESPONSE TO STANDING UP
BP RESPONSE TO SUSTAINED
HAND-GRIP
63. NORMAL AND ABNORMAL
VALUES OF AUTONOMIC
FUNCTION TESTING
TEST NORMAL BORDER ABNORMAL
LINE
VALSALVA 1.2 1.11-1.2 <1.1
RATIO
HR VARIATION WITH
DEEP BREATHING 15/MIN 11-14/MIN <10/MIN
HR RESPONSE TO
STANDING 1.04 1.01-1.03 <1.0
BP FALL ON STANDING 10 MMHG11-29MMHG >30MMHG
BP TO HANDGRIP 16MMHG 11-15MMHG <10MMHG
64. AUTONOMIC Fn TESTS…
CARDIOVASCULAR TESTS EASY TO
PERFORM
NEEDS ONLY ECG,
SPHYGMOMANOMETER
COMPLICATED TESTS LIKE 24 HOUR
HR VARIABILITY etc ONLY FOR
ADVANCED RESEARCH, AND
PRACTICAL UTILITY LIMITED
65. INTERPRETATION
NORMAL - ALL FIVE NORMAL / 1
BORDERLINE
EARLY- ONE OF 3 HR TESTS ABNORMAL/
2 BORDERLINE
DEFINITE- > 2 HR TESTS ABNORMAL
SEVERE- + > 1 BP TESTS ABNORMAL /
BOTH BORDERLINE
ATYPICAL- ANY OTHER COMBINATION
68. HARRIS MAT
PATIENT STEPS ON AN INKED MAT
WALKS ON A LONG SHEET OF
PAPER
FOOTPRINTS ANALYZED WITH
RESPECT TO PRESSURE POINTS
69. INKPAD SYSTEM
LARGE INKPAD WITH A PLASTIC
COVER ON TOP TO PREVENT
STAINING OF PATIENT’S FOOT
FACILITY TO INSERT A PLAIN PAPER
BELOW THE INKPAD
PRESSURE BY PATIENT’S FOOT IS
TRANSMITTED TO THE PAPER AND
A FOOTPRINT OBTAINED
70. VIEW BOX
A VIEW BOX WITH A PLAIN GLASS ABOVE
AND A MIRROR BELOW
A TUBE-LIGHT IS PLACED IN THE BOX
FOR ILLUMINATION
WHEN THE PATIENT STANDS ON THE
TOP, THE REFLECTION IN THE MIRROR
CAN BE EASILY EXAMINED AND
PRESSURE POINTS VISUALIZED
71.
72. OTHER LABORATORY
TESTS
BLOOD GLUCOSE LEVELS,
GLYCATED HEMOGLOBIN
TBA METHOD IN MOST INDIAN
SETTINGS
COMPLICATED METHODS OF
ASSESSMENT NOT
AVAILABLE/AFFORDABLE
73. Lab tests…
MICROPROTEINURIA
POSITIVE CORRELATION WITH PVD
‘SIGMA CHROMOGEN BLUE’ USED
COMMONLY FOR ESTIMATION
COMPLEX TESTS LIKE MICRO-
ALBUMINURIA, RIA, ELISA NOT
AVAILABLE EVEN AT MOST TERTIARY
CARE CENTRES IN INDIA
75. IN INDIA
THE PRIMARY CARE DOCTOR IS
THE ONLY HELP AVAILABLE
ORTHOTIST, PODIATRIST,
SPECIALIST NURSE ALL
EXTREMELY SCARCE
THEREFORE, BASIC ASPECTS OF
ALL THESE FIELDS NEED TO BE
KNOWN BY EVERY PHYSICIAN
76. SIX ASPECTS OF
PATIENT TREATMENT
WOUND CONTROL
MICROBIOLOGICAL CONTROL
MECHANICAL CONTROL
VASCULAR CONTROL
METABOLIC CONTROL
EDUCATIONAL CONTROL
77. WOUND CONTROL
DEBRIDEMENT
REMOVES CALLUS & REDUCES
PLANTAR PRESSURES
TRUE DIMENSIONS OF ULCERS CAN
BE MEASURED
DRAINAGE OF EXUDATE
ENABLES DEEP SWAB FOR CULTURE
CONVERTS CHRONIC WOUND TO
ACUTE WOUND
81. IN NEURO-ISCHEMIC ULCERS,
MORE AGGRESSIVE ANTIBIOTIC
THERAPY REQUIRED AS
COMPARED TO PURE
NEUROPATHIC ULCERS
SEARCH AGGRESSIVELY FOR
OSTEOMYELITIS
82. MECHANICAL CONTROL
CORRECT FOOTWEAR
TENDING TO MINOR FOOT PROBLEMS
ONYCHOGYPHOSIS (MONSTER NAIL)
ONYCHOCRYPTOSIS (INGROWING TOE NAIL)
ONYCHOMYCOSIS
TINEA PEDIS
CORNS, ETC
83. TREATMENT OF DEFORMITY & CALLUS
REDISTRIBUTION OF PLANTAR
PRESSURES IN NEUROPATHIC FOOT
TEMPORARY OFF-LOADING THE SITE OF
ULCER
USE OF CASTS
AIRCAST (WALKING BRACE)
TOTAL-CONTACT CAST
SCOTCHCAST BOOT
84. VASCULAR CONTROL
CAREFUL CLINICAL EXAMINATION
MANDATORY
SUPPLEMENTED BY ABI
ANGIOPLASTY / BYPASS IN NON-
HEALING ULCERS WITH
DOCUMENTED ARTERIAL STENOSIS
85. METABOLIC CONTROL
POOR GLYCEMIC CONTROL
DELAYED HEALING
IMMUNE SUPPRESSION
IMPAIRED RESPONSE TO INFECTION
LOOK FOR OTHER ASSOCIATED
METABOLIC PROBLEMS
HT, UREMIA, ACIDOSIS, ETC
87. DO
WASH FEET DAILY WITH MILD SOAP
& WATER
CHECK FEET DAILY
SEEK URGENT TREATMENT OF ANY
PROBLEMS
WEAR SENSIBLE SHOES
CHECK SHOES INSIDE AND
OUTSIDE BEFORE WEARING
88. Do…
HAVE FEET MEASURED WHEN
BUYING SHOES
BUY LACE-UP SHOES WITH PLENTY
OF ROOM FOR TOES
KEEP FEET AWAY FROM HEAT
SIT INSTEAD OF STANDING
CHANGE SOCKS FREQUENTLY
89. DONT
USE CORN CURES
USE HOT-WATER BOTTLES
WALK BAREFOOT
CUT CORNS OR CALLUSES BY
YOURSELF
DELAY IN SEEKING HELP FOR ANY
PROBLEM
90. MANAGEMENT
PROBLEMS IN INDIA
POOR PATIENT AWARENESS
DELAYED SEEKING OF HEALTH
CARE
POVERTY, LACK OF
AWARENESS/NEARBY FACILITIES
CULTURAL BELIEFS
91. INJURY PRONE FOOT
DIVERSE CAUSES
RAT-BITE, INSECT BITE, ETC
INJURY DURING AGRICULTURE/MANUAL
LABOUR
LACK OF SUFFICIENT FACILITIES
LACK OF TRAINED PERSONNEL
COST
92. SOME SOLUTIONS
EDUCATION
PRIMARY CARE PHYSICIAN
PATIENT
INNOVATE PRAGMATICALLY, EG:-
WASHED X-RAY FILM FOR ULCER
MEASUREMENT
INKPAD FOR FOOT PRESSURE
ASSESSMENT
93. HONING OF CLINICAL SKILLS
EARLY IDENTIFICATION OF ‘HIGH RISK’
FOOT BY SCREENING EVERY DIABETIC
FOOTWEAR FOR INDIA
AVOID BLACK COL (ASSO. WITH HANSEN’S)
APPROPRIATE LOCALLY AVAILABLE
MATERIAL
TAKING PATIENT INTO CONFIDENCE
94. DANGER SIGNS - FOR
PATIENT AWARENESS
TO SEEK MEDICAL HELP IF
SWELLING
COLOUR CHANGE
PAIN / THROBBING
THICK HARD SKIN OR CORNS
BREAKS IN THE SKIN, INCLUDING
CRACKS, BLISTERS OR SORES
97. CONCLUSIONS
DIABETIC FOOT - A WIDELY PREVALENT
& COSTLY COMPLICATION OF DIABETES
CLINICAL EXAMINATION OF FOOT - A
MUST IN EVERY DIABETIC PATIENT
SUPPLEMENTED BY LAB EVALUATION
FOR VASCULAR, NEUROLOGIC AND
MECHANICAL STATUS
99. India—Dr.Paul Brandt
&TCC
PB while working at CMC amongst
leprosy patients saw TCC
Transformed same exp. to diabetic foot
Mx.
To day TCC is universaly accepted for
Neuropathic Diabetic Foot Ulcer
100. Evaluation of Sensory
Function
Large Fibre Function
Vibration Perception Threshhold
Indian Biosthesiometer
Rs. 25,000 vs Rs. 50,000
Local Simmes Weinstein monofilament
101. QST…
Assessment of small fibre function
Heat & Cold sensation
Heat Pain & Cold pain sensation
Marstock Stimulator
Thermal Discrimination Threshold
measurement
Indian Equipment
Rs.2,00,000 vs Rs. 50,000