The document discusses the approach and classification of leg ulcers. It begins by defining a leg ulcer and classifying them as non-specific, specific, or malignant. The main causes of leg ulcers are then discussed, including venous insufficiency (80-85% of cases), arterial disease, neuropathy, infection, trauma, and malignancy. Diagnostic evaluation of a leg ulcer involves obtaining a thorough history and physically examining the ulcer, surrounding skin, and vascular and neurological systems. Key distinguishing features of venous versus arterial ulcers are also provided.
NECROTISING FASCIITIS- the flesh eating infection
#surgicaleducator #necrotisingfasciitis #surgicaltutor #babysurgeon #usmle
· Dear Viewers
· Greetings from “Surgical Educator”
· Today in this episode I have discussed about Necrotising Fasciitis- the flesh eating infection
· It is common in immunocompromised patients even after trivial trauma.
· I have discussed about the overview,etiology,types,clinical features,complications and treatment of Necrotising Fasciitis
· I hope this video is interesting and also useful to all of you
· You can watch the video in the following links:
· surgicaleducator.blogspot.com youtube.com/c/surgicaleducator
Thank you for watching the video
Venous ulcer is one of the commonest complication of varicose veins. It may also occur in a condition called post phlebitic limb which is a sequelae to acute deep vein thronbosis. Hurry in surgical treatment of this condition before the ulcer heals could lead to a failure. Good conservative treatment for healing of the ulcer followed by surgical intervention gives the best results.
NECROTISING FASCIITIS- the flesh eating infection
#surgicaleducator #necrotisingfasciitis #surgicaltutor #babysurgeon #usmle
· Dear Viewers
· Greetings from “Surgical Educator”
· Today in this episode I have discussed about Necrotising Fasciitis- the flesh eating infection
· It is common in immunocompromised patients even after trivial trauma.
· I have discussed about the overview,etiology,types,clinical features,complications and treatment of Necrotising Fasciitis
· I hope this video is interesting and also useful to all of you
· You can watch the video in the following links:
· surgicaleducator.blogspot.com youtube.com/c/surgicaleducator
Thank you for watching the video
Venous ulcer is one of the commonest complication of varicose veins. It may also occur in a condition called post phlebitic limb which is a sequelae to acute deep vein thronbosis. Hurry in surgical treatment of this condition before the ulcer heals could lead to a failure. Good conservative treatment for healing of the ulcer followed by surgical intervention gives the best results.
Vascular ulcers presented to the department of surgery, Niger Delta University Teaching Hospital, Okolobiri, Bayelsa State, Nigeria as resident postgraduate presentation
Vascular ulcers presented as part of surgery resident postgraduate seminar to the department of surgery, Niger Delta University Teaching Hospital, Okolobiri, Bayelsa State, Nigeria
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
New Drug Discovery and Development .....NEHA GUPTA
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Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
2. INTRODUCTION
• An ulcer can be defined as a break in the
epithelial continuity.
• Classified
– Non- specific
– Specific
– Malignant
• A leg ulcer is discontinuity of the squamous
epithelium of the skin usually around the ankle or
on the foot
3. • Leg ulcers are a common, chronic, recurring
condition
• Prevalence b/w 1.5 to 3 per 1000 and increases
with age.
• It’s estimated that up to 20 per 1000 people over
80 yrs will suffer from a leg ulcer
• Following healing, re-ulceration rates at one year
range from 26% - 69%
8. CHRONIC VENOUS ULCER
• CVI- chronic venous insufficiency who have
developed irreversible skin damage as the
result of sustained ambulatory venous
hypertension
• CVU- chronic venous ulceration defined as a
break in the skin , present for more than 6
months , b/w the malleoli and tibial tuberosity
that is presumed to be wholly or partially due
to venous disease
9. CVI grade III is CVU
• Basle Classification ( widmer)
• CVI-I
– Corona phlebectatica ( venous, or malleolar, Flare)
• CVI-II
– Hyper or dipigemented areas ( lipodermatosclerosis,
atrophe blanche)
• CVI-III
– Open or healed ulceration
10. Others Classification
• SVS/ISCVS classification
– Clinical 0-3/ anatomical 0-7/ orgin 0- 2 /severity
– Clinical Class 3- ulceration
• CEAP classificaton
– Clincal class 5- healed ulceration
– Clinical class 6- active ulceration
11. Epidemiology of chronic venous ulcer
• At any point
– A third to a half will have trunk varicose veins
– 7% will have CVI- I
– 1-3%will have CVI- II
– 1% will have CVI- III
– Age – 3.6% over 65yrs
– M:F – 1:1
• Common association are
– Lower social class
– Occupation like prolong standing predisposes
– Inc BMI assoc with delayed CVU healing
– Fibre deficent diet n constipation aggravate
– Pregnancy n multiparity
– Caucasians
12. PATHOPHYSIOLOGY CVU
• CVI, culminating in CVU is the end result of
sustained ambulatory venous hypertension acting
upon a dermal microcirculation designed to
operate in the presences of low venous pressure
• Ambulatory venous pressure (AVP)
– Normal - < 25Hg
– >30 – inc incidence of CVU
• 31-40 mmHg- 15%
• >90mmHg- 100%
14. Microvascular
• Venous stasis n hypoxia
• Arteriovnous fistula ( stealing blood from skin)
• Peri-capillary fibrin cuff( Browse n Burnand)
• Leucocyte Migration (coleridge –smith)
• Capillary Proliferation
15. CVU as a failing wound
• Ulcer exduate inhibit keratinocyte migration and
fibroblast activity
• Increased proteolysis
• Upregulation of metaloproteinases- breakdown
important growth factor necessary for epithelialization
• Epithelial cells in CVI refractory to the normal signalling
process
16. ARTERIAL LEG ULCER
Chronic limb ischemia n Ulcer
Definition of CLI:
• Persistent rest pain that requires regular adequate
analgesia for at least 2 weeks, with resting ankle
pressure of < 50mmHg or a toe pressure of < 30
mmHg
• Presence of gangrene/ Ulcer of the foot/ toes with
the same resting pressure
17. • Arterial ulcers account for 10% - 15% of leg ulcers
• Major risk factors for Peripheral occlusive disease
– Men > 45 yrs
– Women >55 yrs or premature menopause
– Family history of premature atherosclerosis
– Smoking
– HDL < 35 mg/dl
– Hypertension
• Other risk factors
– DM
– Def antioxidant vitamins
– Elevated plasma fibrinogen level n homocysteine level
– Sedentary life style
18. Clinical categories of chronic limb ischemia
Grade Category Clinical description
0 0 Asymptomatic
1 Mild claudication
I 2 Moderated claudication
3 Severe claudication
II 4 Ischemic rest pain
III 5 Minor tissue loss- non healing ulcer, focal gangrene
with diffuse pedal edema
6 Major tissue loss- extending above TM level,
Functional foot no longer salvagable
19. Fontaine classification- severity of CLI
• Stage I- Asymptomatic
• Stage II- intermittent claudciation limiting lifestyle
• Stage III- Rest pain due to ischemia
• Stage IV- Ulcer/ Gangrene due to ischemia
21. Natural History of Atherosclesrosis
Macro n Microvascular changes
Chronic limb ischemia
Intermittent claudication ( 60% stabalise, 20 %improve)
(20%)Decrease claudication distance
Nocturnal ischemic pain
Rest pain
Progressive ischemia
22. Contd..
Tissue loss
Ulceration n gangrene
Minor trauma
Secondary infection
Ischemia n edema
Decrease perfusion
Thrombosis in microcirculation
Spread proximally to small arteries
23. DIABETIC FOOT ULCER
• 2% of whole population
• 10- 25% of all DM develop some foot problems
• 1 in 10 to 1 in 5 diabetic inpatient are due to foot
ulceration, infection or gangrene
• 5- 10% of all diabetic will require a lower extrimity
amputation (1% in UK)
• 45 % of all amputation are on diabetics
• Amputation on diabetics are 20 times higher than non-diabetic
26. Classification of Diabetic foot ulcers
• 1981 Wagner FW: Wagner Classification
• 1996 Lavery & Armstrong: University of Texas
Diabetic Wound Classification System
• 1999 Macfarlane & Jeffcoate: S(AD)SAD
system
27. Wagner FW Classification
Gr O no obvious ulcer, but deformity, hyperkeratosis,
or bony abnormality
Gr 1 superficial ulcer, no infection sign
Gr 2 deep ulcer with infection, but no bony
involvement
Gr 3 deep ulcer with abscess & bony involvement
Gr 4 local gangrene (e.g., toe, forefoot)
Gr 5 whole foot gangrene
28. LEG ULCERATION IN RA
• Leg ulceration is often poorly defined in research
• Surprisingly little is known about the prevalence
and aetiology
• The validated overall prevalence of leg ulceration
in 324 in-patients was over 8%
(Wilkinson & Kirk, 1965)
• A postal survey of 250 RA patients taken from a
diagnostic register found a validated overall
prevalence of 9%
(Thurtle & Cawley, 1983)
29. Factors affecting tissue viability in RA
• Articular(joint) disease
• Extra-articular (systemic) disease – anaemia,
nodules, vasculitis, peripheral neuropathy
• Peripheral vascular disease
• Side effects of medication
• Reduced mobility and self care capacity
• Poor nutrition
32. LEG ULCER IN VASCULITIS
• Inflammation with destruction of the vascular wall.
• Cutaneous vasculitis is more common than systemic
• Clinical presentation ranges from reticulated erythema to
widespread purpura and finally necrosis leading to ulceration.
Common caueses of vasculitis are
• Infection,
– Meningococcus/mycobacterium leprae/ rickettsia/ spirochetes
• Immunoloigcal
– Connective tissue disorder
– Cryoglobuinemia
– Goodpasture syndrome
– Drugs ( antibiotics n NSAID)
• Idiopathic
– PAN/ giant cell arteritis/ Takayasu diseases
33. Pathophysiology
• Immune complexes- deposited in wall of blood vessles
• This often starts in the legs because of the high hydrostatic
pressure in the post-capillary venules due to gravity.
• activates the complement system, causing the chemotaxis
of neutrophil
• Activated neutrophil release proteolytic enzymes
• Inflammation n vessel wall destruction
34. LEG ULCER IN LYMPHEDEMA
Chronic oedema –
defined as oedema that
has been present for
more than 3 months and
does not go down
overnight
(Moffatt et al 2003, Williams 2003)
35. Aeitology
• Primary lymphoedema
– aplasia/hypoplasia/valvular incompetence
• Secondary lymphoedema
– Cancer treatment
– Recurrent infection
– Trauma
– Parasitic infection
– Obstruction by tumor
– Immobility
• Lymphovenous oedema due to CVI or traditional venous
ulcer bandaging systems
36. Pathophysiology
• Although chronic oedema is not directly responsible for
ulcer development, it will affect wound healing
(Mortimer and Browse, 2003).
• This is due to the reduced oxygenation of the tissues
resulting from the presence of edema (Casley- Smith,
1997).
• As such, skin damage to an edematous limb may lead to
ulceration.
•
• Ulceration can also follow superficial infection
37. EVALUATION OF LEG ULCER
• HISTORY
• EXAMINATION OF ULCER N SURROUNDING
• EXAMINATION OF VASCULAR INSUFFICENCY
• EXAMINATON OF NERVE LESION
38. The history of an ulcer
History
– Mode of onset /Precipitating event
– Duration
– Symptoms (pain/ discharge/
– Systemic features
– Risk factors
– Peripheral ischemic symptoms
– Previous interventions
– Treatment
39. The history of an ulcer
Venous
– Varicose veins
– DVT/thrombophlebitis
– Previous ulceration
– Previous treatments
– Sclerotic changes
– Oedema
– Painless
– Precipating factors (age, occupation, BMI, low socioeconomic)
– Coexsistence
• PVD (20%), DM (5%), RA (8%)
40. The history of an ulcer
Arterial
• Intermittent Claudication
• rest pain
Risk factors
• HTN, smoking,
hyperlipidemia, sedentary
• Previous arterial
intervention
Vasculitis
– History of autoimmune
disease
– Painful
– Lack chronic arterial
occlusive symptoms
– Systemic symptoms of
autoimmune disease
41. The history of an ulcer
• Infective
– Exposures
– Associated cellulitis
– Systemic symptoms
– Exudate
– Spreading
– Foul smell
• Neoplastic
– Chronicity
– Previous malignancy
– Risks
• Exposures
• UV radiation
• Ionising radiation
42. CLINICAL ASSESSMENT OF LEG ULCER
FEATURES VENOUS ARTERIAL NEUROTROPHIC TRAUMATIC MALIGNANT
SITE
gaiter area 70%,
lateral 20%,
circumferential
5%
malleoli,
heel,
metatarsal
heads,
5 MT base
pressure area
site of
trauma
face, lips,
toungue
SIZE/SHAPE
large shallow
,vertically oval,
small deep variable variable variable
MARGIN irregular regular regular
EDGE sloping punched out sloping
everted/roll
ed
FLOOR granulation
slough/
necrotic
slough variable black mass
43. FEATURES VENOUS ARTERIAL NEURO TRAUMA MALIGNANT
BASE fix /no induration no no no indurated
deep up to
DEPTH shallow deep
bone
variable shallow
DISCh
serous/
pureulent/ sero-sanguineous/
gree
nish/bloody
TENDER painless painful painless painful painless
SKIN
edema/eczema/
pigmentation/
atrophie blanche/
varicose vein
Thin skin/ dec
hair growth/
loss of sc fat/
loss of
shininess/
brittle nails
callus/ loss of
sensation
cellulitis
fix to
underlying
str
LYPMH
NODE
absent absent absent
present
except BCC
45. DISTINGUISHING FEATURES OF ARTERIAL AND VENOUS ULCERS
C/F ARTERIAL ULCER VENOUS ULCER
Gender M>F F>M
Age >60yrs 40 -60 yrs
Risk Factors Smkn, HTN, DM, Hyperlipidemia DVT,Thromphophilia, Varicose vein
Past History peripheral, coronary, Cerebrovascular DVT,Long bone #
Symptoms severe pain except DM neuropathy 3rd have slight pain
Site
malleoli, heel, metatarsal heads,
5 th MT base
Medial (70%), Lateral (20%) or both
and gaiter area
Edge Regular,Punched out, Indolent irrregular wit neo epithelium
Base
deep , green (soughy) or black
(necrotic) with no granulation tissue,
may comprise major tendon, bone n jt
pink n granulating but may be
covered in yellow green slough
Surrounding skin features of severe limb ishemia
LDS, Varicose eczema, atrophie
blanche
Veins empty full
Swelling usually absent often present
46. EVALUATION OF VASCULAR INSUFFICENCY
• Signs of ischemia
– Thinning of skin/diminished
hair growth/loss of
subcutaneous fat/ loss of
shininess/ brittle nails/ ulcer
in pressure areas/ coldness
• Burger’s postural test/
Burger’s angle
– angle of 30 degree indicates
severe ishemia
• Capillary filling time- 20- 30
sec
• Crossed leg test (Fuschsig’s
test)- detect popliteal
pulsation
• Palpation of Blood vessles
• ABPI
• Bordie-Terendelenburg test
– To determine the
incompetency of the
saphenofemoral valve and
other communicating systems
• Tourniquet test
• Perthes’s test-
– Cramping pain in DVT
• Schwartz test-
• Pratt’s test- position of leg
perforators
• Fegan method-
• Homan’s sign
• Moses’s sign
47. ANKLE BRACHIAL PRESSURE INDEX
(ABPI)
ABPI < 0.9 ABPI 0.9 – 1.1 ABPI >1.1
Palpable foot
pulse
PVD possible ,
assess furtther
PVD likely Calcification
• An ABPI of < 0.8 at rest indicates haemodynamically
significant lower limb arterial disease
• 0.7- claudication
• 0.4- rest pain
• < 0.3 suggests imminent necrosis
present- PVF
possible,
assess further
No palpable
foot pulse
PVD probable,
assess further
PVD likely
assess further
Calcification
present- PVD
probable,
assess further
48. PULSES OF LOWER LIMB
• The four pulses are:
– femoral
– popliteal
– posterior tibial
– dosalis pedis
49. Locate the superior border of the pubis
in the mid line of the body; this is the
uppermost part of the pubic symphysis.
Feel the anterior limit of the iliac crest.
The femoral pulse can be found
midway between these two bony points
(the mid-inguinal point)
50. Popliteal pulse
Ask the subject to bend the knee so that it is
flexed to about 90 degrees. Sit on the right
hand edge of the bed close to the subject
right foot. As before gently clasp the sides of
the knee (of either limb) and press the pulps
of your fingers into the popliteal fossa.
51. Locate the medial malleolus. 2-3cm below and
behind it you should find the posterior tibial
pulse. when taking the pulse on your own foot
it is easier to use the thumb. In clinical practice
the pulse is palpated using the pulps of the
index and middle fingers. The artery is slightly
deeper placed than the dorsalis pedis and
therefore more concentration is often required
to feel its pulsations
Place your fingers half way down the
dorsum of the foot on the bony area in
the line between the first and second
toes. The bones you can feel are the
dorsal aspect of the navicular and the
intermediate cuneiform bones. The
pulse is palpated where the artery
passes over this area.
52. MANAGEMENT
PRINCIPLE:
• Determine etiology
• Accurate assessment of ulcer
• Identify n correct co morbid factors
• Treat underlying causes
• Adequate drainage and desloughing
• Avoid adherent dressing
53. The Investigation of a Leg Ulcer
General Investigations
Haematological FBC
U&E, LFT’s
Blood Glucose
Lipid profile
CRP
Other ECG
X Ray
Swab C&S (remember TB)
54. The Investigation of a Leg Ulcer
Arterial
ABI’s
Doppler USG
Duplex USG
Arteropraphy
Digital substraction
angiogram (DSA)
CTA
MRA
Plethysmography
Transcutaneous oxygen tension
Isotope blood flow
Venous
Doppler USG
Duplex USG
Ambulatory Venous Pressure
(AVP) measurement
Phlebography (Ascending/
Descending)
Photoplethysmography
Vacricography
CT/MR Venography
Other
wound swab c/s
Biopsy
RF, ANA DNA binding
Compliment Levels
55. Doppler USG
• A standard Doppler probe emits a sound when blood
flows past the transmitting and receiving crystals.
• It may be uniphasic or biphasic
• Minimum level of investigation
• Quick/ Easy/ Non-invasive/ Inexpensive
• Useful in
– Patency of vein
– Venous reflux (SFJ > SPJ)
– Exclude arterial diseases
• ‘Doppler signal’ indicates moving blood, not viablility
56. Duplex Ultasonography
• Generates 3 types of image information based on
• Grey scale B mode ultrasound/ Color flow (triplex)/
Pulsed Doppler spectral analysis
• Uses
– blood velocity n valve closure time
– Detailed analysis of anatomy n physiology
– Valvular reflux / incompetnecy
• Red in color map flow
– Infrainguinal DVT
– Origin of varicose vein n venous ulceration
– Preoperative marking of LSV for FP bypas
– Post operative surveillence of vein grafts
– Arterial stenosis
• 100% peak systolic volume rise compared with a normal area
57. Limitation of duplex
• Cannot reliable distinguish deep venous incompetence due
to primary from secondary
• Cannot reliably deterimine the presence of functional
severity of venous outflow obstruction
• Unreliable in suprainguinal venous system
• Time consuming and operator dependent
• Oversensetive to clinically insignificant degrees of reflux
58. Phlebography
• Replaced by combination of
duplex and plethysmograpy
• Anatomy of deep venous
system
• Presence of residual thrombus
• Extent of recanalisation
• Distriution of collaterals
• Functional phlebography
enable to detect the site of
phlebography Venogram showing post-thrombotic
venous occlusions with collateral
pathways.
60. Plethysmography
• Amount of blood in dermal circulation is
measured by the amount of light absorbed and
reflected
• Screening test
• Mesures the refilling time(RT) in dermal
circulation
• RT > 20 sec is normal
• Incompetency is indicated by short RT
• Little practical use in arterial disease
61. CT n MR venography
• Ideal for imaging for
large central vein
• Not widely used for
peripheral venous
disease
62. Ambulatory Venous Pressure
• Direct method has little practical use
• Measurement
– Stand motionless- 90 mmHg
– Walking (10 tip toe mov)- 15-30 mmHg
– Again stand still- RT 90 is 18- 40 sec
• Close relationship b/w AVP and ulcer
– <30 mmHg- none
– 41-50 mmHg- 22%
– 61- 70 mmHg- 57%
– >80mmHg- 73%
63. Transcutaneous oxygen tension
measurement
• Metabolic state of tissue
• Dorsum of the foot/ calf/ thigh
• Testing tcpo2 is 60 mmHg
• Useful in determining the site of amputation
64. Arteriography
• Gold standard for assessment
of LL
• DSA is more advance method
and provide the image of
contrast within the lumen of
the artery without the
surrounding tissues
• Site- Femoral/ Brachial/
Common femoral vein
• RF n INR should be normal
• Stop oral-hypoglycemic and
anticoagulant
66. Overveiw of TREATMENT of Leg Ulcer
• MEDICAL MANAGEMENT n LIFESTYLE
• DRESSING n TOPICAL AGENTS
• PHARMACOTHERAPY
• PHYSICAL THERAPIES
• SURGICAL MANAGEMENT
67. SELF CARE GUIDELINES
• Keep mobile with regular walking if possible
• Elevate legs when immobile
• Use emollient and examine legs regularly for
broken skin, blisters, swelling or redness
• Lose weight if appropriate
• Stop smoking
68. DRESSING n TOPICAL AGENT
IDEAL DRESSING
• Control (absorb) odour, exudates and or bleeding
• Exclude pathogenic bacteria and minimize colonization
• Relieve pain
• Ehance the would environment to speed up healing
• Protect the wound from further environmental injury
• Main the wound at body temperature
• Reduce excessive scarring and or recurrence
• Hide the wound form sight
69. Venous leg Ulcer – treatment
• There is no proven role of antiseptics
• Irrigate the wound with warm tap water or saline, then dry.
•
• Remove slough or necrotic tissue by gentle washing
• potassium permanganate 0.01% soak if the ulcer is malodorous
• For uncomplicated, non-infected ulcers apply a simple low-adherent
dressing like paraffin emollients n gauge and Zinc & replace weekly.
• Other dressings may be used if needed - pain (hydrocolloid), heavy
exudate (alginate) or slough (hydrogel)
• Biological dressing provide growth factors n scaffold for the ulcer
healing n is more promising
70. Venous leg ulcer - treating infection
• All chronic wounds are colonised with bacteria
• Antibiotics should be used only if there is evidence of cellulitis
or active infection (e.g. pyrexia, increasing pain, enlarging
ulcer)
• If there are clinical signs of infection present, clean ulcer with
warm tap water or saline before taking a swab
• Start immediate empiric treatment with an anti-staphylococcal
antibiotic i.e. flucloxacillin or erythromycin 500mg qds for
seven days
• Change dressing daily or alternate days to assess if infection is
improving
• Do not use antimicrobial dressings
• Do not start compression therapy if ulcer is infected
71. Physical therapies
• Elevation n Bed rest will eventually heal virtually all CVU
• Regular exercise will improve AVP
• Compression therapy has been the main stay of treatment for CVI
• Elastic bandage has better healing rates
• For moderate to sever CVI class III (34-45 mmHg) n IV( >45mmHg)
• Commence at metatarsal head terminate at tibial tuberosity
• Multilayer has advantages over single layer
– Charing cross four-layered bandage ( 42 at ankle n 17 below
knee)
• In mixed ulcer 3 layered compression bandage is used
• Compression is contraindicated if the ABPI < 0.6
• Replace every 6 months
• Graduated compression stockings should be used for at least 5 years
after ulcer healing
73. TREATMENT OF ARTERIAL ULCER
• Infection can cause rapid deterioration of an arterial ulcer
• It is not appropriate to debride arterial ulcers as this may produce
further ischaemia and formation of a larger ulcer
• Compression bandaging should not be applied
• Choice of dressing is dictated by the nature of the wound
• Treatment options include
– Risk factor modification
– Pharmacotherapy
– Lumbar sympathectomy
– Angioplasty
– Graft
– Amputation
• To relieve pain n remove a life threatining ischemic
• Below knee have great advantage of rehabilitation
• Above knee have better wound healing
74. TREATMENT OF NEUROPATHIC ULCER
• GENERAL ISSUES
– Good well fitting shoes with sufficient depth
– Look n feel before putting shoe
– Careful toe nail cutting
– Never to attempt trimming calluses
• Chiropody (nail, callus, padding)
• orthotics
• Surgery- excision of prominent bone
• Eradication of infection
• Dressing
• Surgical debridement and or amputation for neuroischemic
or ishcemic ulcer
75. Treatment option for Rheumatoid leg ulcer
• Treat the etiology
• Relieve the pain
• Local support n dressing
• Bed rest n Elevation
• Anti inflammatory agent
– Colchicine (1.5mg daily)
– Dapsone (100mg daily)
– Prednisolone 20-40mg daily
– Triamcinolone acetate (Kenalog 10mg/ml) 0.75-1ml for
ulcer of 5cm diameter
• Topical growth factor
• Surgical option- SSG