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The Best Medical Treatment of
Venous Insufficiency in 2013
Dr. Fatih İslamoğlu
Department of Cardiovascular Surgery,Department of Cardiovascular Surgery,
Ege University MedicalEge University Medical FacultyFaculty,,
Izmir, TurkeyIzmir, Turkey
Epidemiology of Chronic Venous Disorders
Age 35-40 yo
- M % 7-35
- F % 20-60
Age > 60 yo;
- M % 15-55
- F % 40-78
Framingham Study
Management of chronic venous disorders of lowew limps: Guidelines according to scientific
evidence Nicolaides et. al. İnt.Ang.Vol:27 2008
Etiological and Anatomical Aspects of
Chronic Venous Disorders
• Primary etiology; 77.4 %
• DVT prevalance ; 25 %
• Superficial system disease; 88.7 %
• Reflux ; 97.5 %
• Reflux combined with obstruction ; 11 %
Socioeconomic Aspects
• Estimations of the overall annual costs of CVD vary
from 600 to 900 million € (US$720 million-1 billion) in
Western European countries
• 2.5 billion € (US$3 billion) in the USA.
• 1-3 % of total health care budget .
• In France, 41% of total expenditure for CVD is for
drugs.
1-McGuckin M. et al. Validation of venous leg ulcer guidelines in the United States and
United Kingdom AmJ Surg 2002; 183
2-Levy E. et al.(Management of venous leg ulcer by French physicians, diversity and
related costs. A prospective medicoeconomic observational study), j Mal Vasc 1994;19
Management
Story
Clinical examination
Duplex scanning
DVT Venous reflux Normal
Treatment Sclerotherapy
Operation Medical Treatment
Ligation Stripping, Ablations Sclerotherapy
Management Options According to CEAP
C A: S, D, P P: R, O, O+R Management
C0-2 S
S R Medical Treatment
Sclerotharpy
Surgery
Mild C3 S
D O Medical Treatment
Severe C3 S
D (above
inguinal
level)
O Medical Treatment
Angioplasty-stent
C 4-6
D (above
inguinal
level)
O Medical Treatment
Angioplasty-stent
C 6 active or
repeating venous
ulcer
D R+O Medical Treatment
Cerrahi
Management of chronic venous disorders of lowew limps: Guidelines according to scientific evidence
Nicolaides et. al. İnt.Ang.Vol:27 2008
MEDICAL THERAPEUTIC METHODS
• Venoactive drugs
• Compression therapy
• Adaptation of lifestyle
The care of patients with varicose veins and associated chronic
venous diseases: Clinical practice guidelines of the Society for
Vascular Surgery and the American Venous Forum
Gloviczki P, Comerota AJ, Dalsing MC, Eklof BG, Gillespie DL, Gloviczki ML, Lohr JM,
McLafferty RB, Meissner MH, Murad MH, Padberg FT, Pappas PJ, Passman MA,
Raffetto JD, Vasquez MA, Wakefield TW; Society for Vascular Surgery; American
Venous Forum.
J Vasc Surg. 2011 May;53(5 Suppl):2S-48S. doi:
10.1016/j.jvs.2011.01.079.
Guidelines for the management of
varicose veins.
Gloviczki P, Gloviczki ML.
Phelobology 2012 Mar;27 Suppl 1:2-9. doi:
10.1258/phleb.2012.012S28.
Guideline No. 8. Medical treatment
We suggest venoactive drugs (diosmin, hesperidin, rutosides,
sulodexide, micronized purified flavonoid fraction, or horse chestnut
seed extract [aescin]) for patients with pain and swelling due to
chronic venous disease, in countries where these drugs are
available..
We suggest using pentoxifylline or micronized purified flavonoid
fraction, if available, in combination with compression, to accelerate
healing of venous ulcers..
Guideline No. 9. Compression treatment
We suggest compression therapy using moderate pressure (20 to 30
mm Hg) for patients with symptomatic varicose veins
We recommend against compression therapy as the primary
treatment of symptomatic varicose veins in patients who are
candidates for saphenous vein ablation
We recommend compression as the primary therapeutic modality for
healingvenous ulcers. .
We recommend compression as an adjuvant treatment to superficial
vein ablation for the prevention of ulcer recurrence.
2 B
8.1
8.2
2 B
9.1
2 C
9.2 1 B
9.3
9.4
1
1 A
B
Grade of
Recommend
.
Level of
evidence
Classification of the main venoactive drugs
• Benzopyrones
- Alpha benzopyrones
• Coumarin
- Gamma benzopyrones
• Diosmin
• Micronized purified flavonoid fraction (MPFF)
• Rutin and rutosides
• 0-(b-hydroxyethyl)-rutosides (troxerutin, HR)
• Saponins
• Escin
• Ruscus extract
• Other plant extracts
• Anthocyan Proanthocyanidins (oligomers), Extracts of Ginkgo,
heptaminol and troxerutin, Total triterpene fraction
• Synthetic products
– Calcium dobesilate
– Benzaron
– Naftazone
Mode of Action of Venoactive Drugs
Effect on Venous
Tone
Effect on capillary
Leakage
Lymphatic
Network
Anti-inflammatory
effect
Micronized purified
flavanoid fractions
(MPFF)
Increases venous tone by
prolonging noradrenergic
activity
Reduces capillary
hyperpermeability by
inhibition of leukocyte
adhesion
Increases
lymphatic flow
and number of
lymphatics
Reduces release of
inflammatory mediators
by inhibiting adhesions of
leukocytes
Rutin and
Rutosides
Increases venous tone by
bhlocking the inactivation
of noradrenalin
Reduces capillary
hyperpermeability
_ Inhibits free radical
generation
Coumarin and rutin Increase of venous flow Beneficial effects on the
microcirculation
Increases high-
protein edema
proteolysis and
lymphatic flow
_
Escin Increases venous wall
tone
Decreases capillary
filtration
_ Free radical scavenging
anti-elastase and anti-
hyaluronidase properties,
Ruscus extract Increases venous tone by
venous α1 adrenergic
receptors
Antipermeability effect _ _
Proantocyanidines _ Reduces
hyperpermeability
_ Free radical scavenging
effect
Gingko biloba _ _ _ _
Calcium dobesilate Increases venous tone Increases capillary
resistance by mitigating
reactive O2 species and
histamine effect
Improves
lymphatic
drainage
Anti-oxidant and
angioprotective effects,
enhances nitric oxide
synthetase activity
Naftazone _ Same Same Same ?
The Effects of Venoactive Drugs on Symptoms
Positıve results on the
following indications
Recommendation Trials and Meta-
analyses
Micronized purified
flavanoid fractions
(MPFF)
Pains, cramps, heaviness,
sensation of swelling,
edema
Grade A Coleridge-Smith etal.
2005
Hydroxethyl-
rutosides
Itching, edema Grade A Unkauf et al. 1996
Krenendo et al. 1993
Grossman 1997
Coumarin and rutin
(troxerutin)
_ Grade C Vanscheidt, et al, 2002
Escin Pain, edema Grade B Diehm et al, 1996
Pittler and Ernst, 2006
Siebert et al, 2002
Ruscus extract Pain, edema Grade B Boyle et al. 2003.
Proantocyanidines Pain Grade C Kiesswetter et al. 2000
Gingko biloba _ Grade C _
Calcium dobesilate Cramps, restless legs,
sensation of swelling,
edema
Grade A Labs et al. 2004
Ciapponi et al. 2004
Naftazone _ Grade C Vayssairat et al, 1997
Indication VAD Recommendation Level of
evidence
code
Relief of
symptoms
associated
with CVD
In patients
with C0s and
C6s and with
CVD related
oedema
MPFF Strong Moderate 1B
Nonmicronized
Flavanoid
Moderate Poor 2C
Oxerutin Moderate High 2A
Ca Dobesilate Moderate High 2A
Escin Moderate Moderate 2B
Ruscus Ext Moderate Moderate 2B
Gingko Biloba Weak Poor 2C
Venous ulcer
healing
MPFF Strong Moderate 1B
Updated recommendations foUpdated recommendations forr VADsVADs
Drug:Drug: CalciuCalciumm dobesilatedobesilate
Symptoms: Cramps, restlessSymptoms: Cramps, restless
legs, sensation of swelling,legs, sensation of swelling,
edemaedema
Number of RCT: 4Number of RCT: 4
Meta-analyses: 2Meta-analyses: 2
Grade of recommendation: 2AGrade of recommendation: 2A
Venoactive drugs: EfficacyVenoactive drugs: Efficacy
Drug:Drug: MPFFMPFF
Symptoms: Pain, cramps, heaviness,Symptoms: Pain, cramps, heaviness,
sensation of swelling, trophic changessensation of swelling, trophic changes
and ulcerationand ulceration
Number of RCT: 5Number of RCT: 5
Meta-analyses: 1Meta-analyses: 1
Grade of recommendation: 1BGrade of recommendation: 1B
Venoactive drugs: EfficacyVenoactive drugs: Efficacy
Drug:Drug: Hydroxyethyl rutosidesHydroxyethyl rutosides
Symptoms: Itching, edemaSymptoms: Itching, edema
Number of RCT: 11Number of RCT: 11
Meta-analyses: 4Meta-analyses: 4
Grade of recommendation: 2Grade of recommendation: 2AA
Venoactive drugs: EfficacyVenoactive drugs: Efficacy
Drug:Drug: Ruscus extract(Cyclo-3R)Ruscus extract(Cyclo-3R)
Symptoms: EdemaSymptoms: Edema
Number of RCT: 2Number of RCT: 2
Meta-analyses: 1Meta-analyses: 1
Healing of ulcers: RCT 1Healing of ulcers: RCT 1
Grade of recommendation 2BGrade of recommendation 2B
Venoactive drugs: EfficacyVenoactive drugs: Efficacy
Mode of Action of Venoactive Drugs
1- Effects on Macrocirculation
Most VADs increase the venous tone by a
mechanism related to noradrenaline pathway.
Especially. MPFF and hydroxyethylruosides
have more affinity to venous wall.
Last studies show that CVD is closely related to
primary insufficiency of venous valves origined
from inflammation.
MPFF: Potential anti-inflammatory effect on an
animal model of acute venous HT. The
protective effect on venous valves in CVD..
2-Effects on Microcirculation
Capillary resistance:: To increase capillary resistance
and to decrease capillary filtration.
Especially MPFF enhanced inhibition of
adhesion of leukocytes on capillariees by
micronisation..
Lymphatic drainage
Coumarin and rutin edema lysis effect by proteolysis.
MPFF: increase both lymphatic flow and lymphatic
channels
Ca dobesilate: increases lymphatic drainage.
Protection against inflammation: The attenuation of
inflammatory response by free radical scavenging,
anti-elastase and anti-hyaluranidase properties of
VADs (rutosides, escin, ruscus extracts,
proanthocyanidines, Ca dobesilate, MPFF).
Hemorrheological disorders: Inflammation
increased fibrinogen, plasma volume contraction,
increased blood viscosity accumulation of
huge red cell aggregates around the venules,
reduced blood flow and poor O2 delivery
lipodermatosklerosis.
Decrease in viscosity: MPFF, Ca dobesilate,
Increase in red cell velocity: MPFF
Efficacy on edema of Venous Origin
The confirmed efficacy by meta analyses: MPFF, Ca
debosilate, rutosides, escin, proanthocyanidine and
coumarin rutin..
Pharmacological Treatment of Leg Ulcers
Only MPFF: This efficacy was confirmed in 2005 by a
meta-analysis of 5 trials using MPFF as an adjunct
to standard treatment in 723 patients of stage 6 of
the CEAP classification.
Leukocyte-Endothelium Interaction:
The cause of venous inflammation and
following damage
Leukocyte-endothel interactionLeukocyte
At the level of microcirculation: Hyperpressure at the capillary level induces capillary leakage
allowing the accumulation of fluids, protein, and red blood cells in the interstitial space, forming
edema. Red blood cell degradation products and protein extravasations are the initial inflammatory
signals that result in leukocyte migration into the interstitial space..
Leukocyte Endothelium Capillary
adhesion changes hyperpressure
Inflammation
Plasma
leakage
Adhesion
molecules
Free
radicals
Proteolytic
enzymes
Red blood
cell
Leukocyte
Venous hypertension is transmitted to the microcirculation causing an
inflammatory state and damage to capillaries. This leads to complications
ranging from edema to open leg ulceration.
1 - Nicolaides AN. Angiology. 2003;54:533-544. 2 - Adapted from Bergan J et al. Microcirculation. 2000;7:S23-S28. 3 - Boisseau MR. Angéiologie. 2000;52:71-
Leukocytes and changes inLeukocytes and changes in
venous valvesvenous valves
Venous inflammation is the first step in
progression of early-term leg symptoms
1
1 - Boisseau MR. Medicographia. 2006;28:128-136.
Inflammatory mediators
released after the
leukocyte/endothelium
interaction may
stimulate nociceptors
in the venous wall,
causing venous pain
and leg symptoms.
New England Journal of Medicine:
The importance of early treatment of CVD1
1 - Bergan JJ, et al. N Engl J Med. 2006;355:488-498.
1-“Early treatment aimed at
preventing venous hypertension,
reflux, and inflammation could
alleviate symptoms of chronic
venous disease and reduce the risk
of ulcers.”
2-“Treatment to inhibit inflammation
may offer the greatest opportunity to
prevent disease–related
complications.”
• Among the medical therapy options, especially
MPFF has a confirmed protective effect on
mıcrocirculation against the ambulatory venous
hypertension.
• MPFF attenuates the leukocyte/endothelium
interaction by inhibiting and/or reducing the
release of endothelial intercellüler adhesion
molecule I, vasculary cell adhesion molecule
and some other leukocyte adhesion molecules.
• The healing effect of MPFF is most evident in
patients with leg ulcers.
• The patients who were treated with MPFF and
compression combination showed 32% better
healing rate than the patients who were treated
topical care and compression alone during 6-
month follow-up.
Other Drugs Having Effect on Venous System
• Pentoxifilline: Reduces leukocyte adhesion and erythrocyte
aggregation, and a mild fibrinolytic action. Although it is relatively
well tolerated, its value for treating leg ulcers remain debatable
until new data become available.
• Stanozolol: Stanozolol (stanazol), an anabolic steroid, stimulates
blood fibrinolysis and has been evaluated with several
randomized trials for the treatment of the more advanced skin
changes associated with lipodermatosclerosis. and it possibly
faster ulcer healing rates.
• Prostoglandins E: Augments blood flow in the capillaries,
increases fibrinolytic activity, reduces platelet and leukocyte
aggregation and adhesion to endothelium. A significant
improvement in the status of leg ulcers with intra-venous
systemic application. (No recommendation can be made)
• Topical prostacyclin-Iloprost: Local application to the ulcer edge
and surrounding skin. No clear benefit.
VAD Adverse Events
• Safety of VADs is in general good and well
tolerated,
• Hepatotoxicity: Coumarin and benzarone,
• Gastrointestinal and autonomic adverse
events, 5%,
• Usage in pregnancy: Some VADs have
been used without any problem during 2.
and 3. trimester of pregnancy, but there
are no long-term series documenting this.
• Caution is recommended during breast
feeding also.
INDICATIONS FOR VADs
• Symptomatic CVD: Heavy legs, pain, resless legs, night
cramps, itching, numbness. If there is no symptom
recurrence; max. 3-month usage. Combined usage of VADs
is not appropriate.
• Anti-edema effecti: A clear effect proved by double-blind
studies
• Lymphedema, MPFF, Coumarine and rutin, Ca dobesilate
• Venous ulcer treatment: MPFF,
• Additive effect in combination with sclerotherapy, surgery
and compression.
• Compression + VAD > compression,
• Compression necessary but contra-indicated (arterial
insufficiency, neuropathies),
• Topical treatment: VADs + heparinoids (anti-inflammatory
effect + analgesic effect by inactivating histamine and anti-
thrombotic effect),
• Prevention of venous hypertension and inflammation,
protection of venous valves; MPFF
Compression Therapy
• Bandages
– Short strech bandages
– Four layer bandages
– Hard-stiff bandages (Unna Bout)
• Compression stockings
• İntermittant pneumotic compression devices
Effects of Compression Therapy
• Reduces edema
• Reduces venous volume
• Increases venous flow
• Reduces venous reflux
• Improves venous pump
• Increases lymphatic flow
Recommendations for Compression Stockings
Indication Grade of
recommendation
and evidence
A (10-14 mmHg) C0S, C1S B
I (15-21 mmHg ) C2S
C2S (cerrahi sonrası)
C2S (skleroterapi sonrası)
B
B
C
II (23-32 mmHg) C3 C4
DVT sonrası
B
A
III (34-46 mmHg) C5 C6 A
CEN pressure gradings
Compression Bandaging
• There is no proved superiority in comparison of different
bandaging styles (i.e, circular, figure of eight or spiral).
• Only, the superiority of multi-layer (four layer) bandaging
was shown in treatment of active venous ulcers.
Intermittant pneumatic compression devices
• Shortens the healing time in treatment of active
venous ulcers. (recommendation and evidence
level B)
Caution in arterial insufficiency:
Can not be used if the patient
has ABI<0,4, or can be used
after revascularization
Should not be used in dermatitis
origined from synthetic
materials used for compression.
Adaptation of lifestyle
There is no evidence-based recommendation
about their efficacy.
• Walking exercises
• Avoiding from long-time stand up position
• Avoiding from obesity
• Leg elevation and bed rest
• Avoiding from heat, hot water
Ineffective adjuncts to ulcer care
• Hyperbaric oxygen —
• Electromagnetic therapy — .
• Therapeutic ultrasound —
• Medical management of lower extremity chronic venous disease
Literature review current through: Sep 2013.
Conclusion
• The combination of medical treatment with
compression provides considerably superior healing
results and better life quality than the compression
alone.
• Medical treatment has a considerable efficacy in
almost every stages of CVD by both alleviating the
symptoms and preventing the progression of
symptoms as well as complications.

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The best medical treatment of venous insufficiency in 2013

  • 1. The Best Medical Treatment of Venous Insufficiency in 2013 Dr. Fatih İslamoğlu Department of Cardiovascular Surgery,Department of Cardiovascular Surgery, Ege University MedicalEge University Medical FacultyFaculty,, Izmir, TurkeyIzmir, Turkey
  • 2. Epidemiology of Chronic Venous Disorders Age 35-40 yo - M % 7-35 - F % 20-60 Age > 60 yo; - M % 15-55 - F % 40-78 Framingham Study Management of chronic venous disorders of lowew limps: Guidelines according to scientific evidence Nicolaides et. al. İnt.Ang.Vol:27 2008
  • 3. Etiological and Anatomical Aspects of Chronic Venous Disorders • Primary etiology; 77.4 % • DVT prevalance ; 25 % • Superficial system disease; 88.7 % • Reflux ; 97.5 % • Reflux combined with obstruction ; 11 %
  • 4. Socioeconomic Aspects • Estimations of the overall annual costs of CVD vary from 600 to 900 million € (US$720 million-1 billion) in Western European countries • 2.5 billion € (US$3 billion) in the USA. • 1-3 % of total health care budget . • In France, 41% of total expenditure for CVD is for drugs. 1-McGuckin M. et al. Validation of venous leg ulcer guidelines in the United States and United Kingdom AmJ Surg 2002; 183 2-Levy E. et al.(Management of venous leg ulcer by French physicians, diversity and related costs. A prospective medicoeconomic observational study), j Mal Vasc 1994;19
  • 5. Management Story Clinical examination Duplex scanning DVT Venous reflux Normal Treatment Sclerotherapy Operation Medical Treatment Ligation Stripping, Ablations Sclerotherapy
  • 6. Management Options According to CEAP C A: S, D, P P: R, O, O+R Management C0-2 S S R Medical Treatment Sclerotharpy Surgery Mild C3 S D O Medical Treatment Severe C3 S D (above inguinal level) O Medical Treatment Angioplasty-stent C 4-6 D (above inguinal level) O Medical Treatment Angioplasty-stent C 6 active or repeating venous ulcer D R+O Medical Treatment Cerrahi Management of chronic venous disorders of lowew limps: Guidelines according to scientific evidence Nicolaides et. al. İnt.Ang.Vol:27 2008
  • 7. MEDICAL THERAPEUTIC METHODS • Venoactive drugs • Compression therapy • Adaptation of lifestyle
  • 8. The care of patients with varicose veins and associated chronic venous diseases: Clinical practice guidelines of the Society for Vascular Surgery and the American Venous Forum Gloviczki P, Comerota AJ, Dalsing MC, Eklof BG, Gillespie DL, Gloviczki ML, Lohr JM, McLafferty RB, Meissner MH, Murad MH, Padberg FT, Pappas PJ, Passman MA, Raffetto JD, Vasquez MA, Wakefield TW; Society for Vascular Surgery; American Venous Forum. J Vasc Surg. 2011 May;53(5 Suppl):2S-48S. doi: 10.1016/j.jvs.2011.01.079. Guidelines for the management of varicose veins. Gloviczki P, Gloviczki ML. Phelobology 2012 Mar;27 Suppl 1:2-9. doi: 10.1258/phleb.2012.012S28.
  • 9. Guideline No. 8. Medical treatment We suggest venoactive drugs (diosmin, hesperidin, rutosides, sulodexide, micronized purified flavonoid fraction, or horse chestnut seed extract [aescin]) for patients with pain and swelling due to chronic venous disease, in countries where these drugs are available.. We suggest using pentoxifylline or micronized purified flavonoid fraction, if available, in combination with compression, to accelerate healing of venous ulcers.. Guideline No. 9. Compression treatment We suggest compression therapy using moderate pressure (20 to 30 mm Hg) for patients with symptomatic varicose veins We recommend against compression therapy as the primary treatment of symptomatic varicose veins in patients who are candidates for saphenous vein ablation We recommend compression as the primary therapeutic modality for healingvenous ulcers. . We recommend compression as an adjuvant treatment to superficial vein ablation for the prevention of ulcer recurrence. 2 B 8.1 8.2 2 B 9.1 2 C 9.2 1 B 9.3 9.4 1 1 A B Grade of Recommend . Level of evidence
  • 10. Classification of the main venoactive drugs • Benzopyrones - Alpha benzopyrones • Coumarin - Gamma benzopyrones • Diosmin • Micronized purified flavonoid fraction (MPFF) • Rutin and rutosides • 0-(b-hydroxyethyl)-rutosides (troxerutin, HR) • Saponins • Escin • Ruscus extract • Other plant extracts • Anthocyan Proanthocyanidins (oligomers), Extracts of Ginkgo, heptaminol and troxerutin, Total triterpene fraction • Synthetic products – Calcium dobesilate – Benzaron – Naftazone
  • 11. Mode of Action of Venoactive Drugs Effect on Venous Tone Effect on capillary Leakage Lymphatic Network Anti-inflammatory effect Micronized purified flavanoid fractions (MPFF) Increases venous tone by prolonging noradrenergic activity Reduces capillary hyperpermeability by inhibition of leukocyte adhesion Increases lymphatic flow and number of lymphatics Reduces release of inflammatory mediators by inhibiting adhesions of leukocytes Rutin and Rutosides Increases venous tone by bhlocking the inactivation of noradrenalin Reduces capillary hyperpermeability _ Inhibits free radical generation Coumarin and rutin Increase of venous flow Beneficial effects on the microcirculation Increases high- protein edema proteolysis and lymphatic flow _ Escin Increases venous wall tone Decreases capillary filtration _ Free radical scavenging anti-elastase and anti- hyaluronidase properties, Ruscus extract Increases venous tone by venous α1 adrenergic receptors Antipermeability effect _ _ Proantocyanidines _ Reduces hyperpermeability _ Free radical scavenging effect Gingko biloba _ _ _ _ Calcium dobesilate Increases venous tone Increases capillary resistance by mitigating reactive O2 species and histamine effect Improves lymphatic drainage Anti-oxidant and angioprotective effects, enhances nitric oxide synthetase activity Naftazone _ Same Same Same ?
  • 12. The Effects of Venoactive Drugs on Symptoms Positıve results on the following indications Recommendation Trials and Meta- analyses Micronized purified flavanoid fractions (MPFF) Pains, cramps, heaviness, sensation of swelling, edema Grade A Coleridge-Smith etal. 2005 Hydroxethyl- rutosides Itching, edema Grade A Unkauf et al. 1996 Krenendo et al. 1993 Grossman 1997 Coumarin and rutin (troxerutin) _ Grade C Vanscheidt, et al, 2002 Escin Pain, edema Grade B Diehm et al, 1996 Pittler and Ernst, 2006 Siebert et al, 2002 Ruscus extract Pain, edema Grade B Boyle et al. 2003. Proantocyanidines Pain Grade C Kiesswetter et al. 2000 Gingko biloba _ Grade C _ Calcium dobesilate Cramps, restless legs, sensation of swelling, edema Grade A Labs et al. 2004 Ciapponi et al. 2004 Naftazone _ Grade C Vayssairat et al, 1997
  • 13. Indication VAD Recommendation Level of evidence code Relief of symptoms associated with CVD In patients with C0s and C6s and with CVD related oedema MPFF Strong Moderate 1B Nonmicronized Flavanoid Moderate Poor 2C Oxerutin Moderate High 2A Ca Dobesilate Moderate High 2A Escin Moderate Moderate 2B Ruscus Ext Moderate Moderate 2B Gingko Biloba Weak Poor 2C Venous ulcer healing MPFF Strong Moderate 1B Updated recommendations foUpdated recommendations forr VADsVADs
  • 14. Drug:Drug: CalciuCalciumm dobesilatedobesilate Symptoms: Cramps, restlessSymptoms: Cramps, restless legs, sensation of swelling,legs, sensation of swelling, edemaedema Number of RCT: 4Number of RCT: 4 Meta-analyses: 2Meta-analyses: 2 Grade of recommendation: 2AGrade of recommendation: 2A Venoactive drugs: EfficacyVenoactive drugs: Efficacy
  • 15. Drug:Drug: MPFFMPFF Symptoms: Pain, cramps, heaviness,Symptoms: Pain, cramps, heaviness, sensation of swelling, trophic changessensation of swelling, trophic changes and ulcerationand ulceration Number of RCT: 5Number of RCT: 5 Meta-analyses: 1Meta-analyses: 1 Grade of recommendation: 1BGrade of recommendation: 1B Venoactive drugs: EfficacyVenoactive drugs: Efficacy
  • 16. Drug:Drug: Hydroxyethyl rutosidesHydroxyethyl rutosides Symptoms: Itching, edemaSymptoms: Itching, edema Number of RCT: 11Number of RCT: 11 Meta-analyses: 4Meta-analyses: 4 Grade of recommendation: 2Grade of recommendation: 2AA Venoactive drugs: EfficacyVenoactive drugs: Efficacy
  • 17. Drug:Drug: Ruscus extract(Cyclo-3R)Ruscus extract(Cyclo-3R) Symptoms: EdemaSymptoms: Edema Number of RCT: 2Number of RCT: 2 Meta-analyses: 1Meta-analyses: 1 Healing of ulcers: RCT 1Healing of ulcers: RCT 1 Grade of recommendation 2BGrade of recommendation 2B Venoactive drugs: EfficacyVenoactive drugs: Efficacy
  • 18. Mode of Action of Venoactive Drugs 1- Effects on Macrocirculation Most VADs increase the venous tone by a mechanism related to noradrenaline pathway. Especially. MPFF and hydroxyethylruosides have more affinity to venous wall. Last studies show that CVD is closely related to primary insufficiency of venous valves origined from inflammation. MPFF: Potential anti-inflammatory effect on an animal model of acute venous HT. The protective effect on venous valves in CVD..
  • 19. 2-Effects on Microcirculation Capillary resistance:: To increase capillary resistance and to decrease capillary filtration. Especially MPFF enhanced inhibition of adhesion of leukocytes on capillariees by micronisation.. Lymphatic drainage Coumarin and rutin edema lysis effect by proteolysis. MPFF: increase both lymphatic flow and lymphatic channels Ca dobesilate: increases lymphatic drainage.
  • 20. Protection against inflammation: The attenuation of inflammatory response by free radical scavenging, anti-elastase and anti-hyaluranidase properties of VADs (rutosides, escin, ruscus extracts, proanthocyanidines, Ca dobesilate, MPFF). Hemorrheological disorders: Inflammation increased fibrinogen, plasma volume contraction, increased blood viscosity accumulation of huge red cell aggregates around the venules, reduced blood flow and poor O2 delivery lipodermatosklerosis. Decrease in viscosity: MPFF, Ca dobesilate, Increase in red cell velocity: MPFF
  • 21. Efficacy on edema of Venous Origin The confirmed efficacy by meta analyses: MPFF, Ca debosilate, rutosides, escin, proanthocyanidine and coumarin rutin.. Pharmacological Treatment of Leg Ulcers Only MPFF: This efficacy was confirmed in 2005 by a meta-analysis of 5 trials using MPFF as an adjunct to standard treatment in 723 patients of stage 6 of the CEAP classification.
  • 22. Leukocyte-Endothelium Interaction: The cause of venous inflammation and following damage Leukocyte-endothel interactionLeukocyte
  • 23. At the level of microcirculation: Hyperpressure at the capillary level induces capillary leakage allowing the accumulation of fluids, protein, and red blood cells in the interstitial space, forming edema. Red blood cell degradation products and protein extravasations are the initial inflammatory signals that result in leukocyte migration into the interstitial space.. Leukocyte Endothelium Capillary adhesion changes hyperpressure Inflammation Plasma leakage Adhesion molecules Free radicals Proteolytic enzymes Red blood cell Leukocyte Venous hypertension is transmitted to the microcirculation causing an inflammatory state and damage to capillaries. This leads to complications ranging from edema to open leg ulceration. 1 - Nicolaides AN. Angiology. 2003;54:533-544. 2 - Adapted from Bergan J et al. Microcirculation. 2000;7:S23-S28. 3 - Boisseau MR. Angéiologie. 2000;52:71-
  • 24. Leukocytes and changes inLeukocytes and changes in venous valvesvenous valves
  • 25. Venous inflammation is the first step in progression of early-term leg symptoms 1 1 - Boisseau MR. Medicographia. 2006;28:128-136. Inflammatory mediators released after the leukocyte/endothelium interaction may stimulate nociceptors in the venous wall, causing venous pain and leg symptoms.
  • 26. New England Journal of Medicine: The importance of early treatment of CVD1 1 - Bergan JJ, et al. N Engl J Med. 2006;355:488-498. 1-“Early treatment aimed at preventing venous hypertension, reflux, and inflammation could alleviate symptoms of chronic venous disease and reduce the risk of ulcers.” 2-“Treatment to inhibit inflammation may offer the greatest opportunity to prevent disease–related complications.”
  • 27. • Among the medical therapy options, especially MPFF has a confirmed protective effect on mıcrocirculation against the ambulatory venous hypertension. • MPFF attenuates the leukocyte/endothelium interaction by inhibiting and/or reducing the release of endothelial intercellüler adhesion molecule I, vasculary cell adhesion molecule and some other leukocyte adhesion molecules.
  • 28. • The healing effect of MPFF is most evident in patients with leg ulcers. • The patients who were treated with MPFF and compression combination showed 32% better healing rate than the patients who were treated topical care and compression alone during 6- month follow-up.
  • 29. Other Drugs Having Effect on Venous System • Pentoxifilline: Reduces leukocyte adhesion and erythrocyte aggregation, and a mild fibrinolytic action. Although it is relatively well tolerated, its value for treating leg ulcers remain debatable until new data become available. • Stanozolol: Stanozolol (stanazol), an anabolic steroid, stimulates blood fibrinolysis and has been evaluated with several randomized trials for the treatment of the more advanced skin changes associated with lipodermatosclerosis. and it possibly faster ulcer healing rates. • Prostoglandins E: Augments blood flow in the capillaries, increases fibrinolytic activity, reduces platelet and leukocyte aggregation and adhesion to endothelium. A significant improvement in the status of leg ulcers with intra-venous systemic application. (No recommendation can be made) • Topical prostacyclin-Iloprost: Local application to the ulcer edge and surrounding skin. No clear benefit.
  • 30. VAD Adverse Events • Safety of VADs is in general good and well tolerated, • Hepatotoxicity: Coumarin and benzarone, • Gastrointestinal and autonomic adverse events, 5%, • Usage in pregnancy: Some VADs have been used without any problem during 2. and 3. trimester of pregnancy, but there are no long-term series documenting this. • Caution is recommended during breast feeding also.
  • 31. INDICATIONS FOR VADs • Symptomatic CVD: Heavy legs, pain, resless legs, night cramps, itching, numbness. If there is no symptom recurrence; max. 3-month usage. Combined usage of VADs is not appropriate. • Anti-edema effecti: A clear effect proved by double-blind studies • Lymphedema, MPFF, Coumarine and rutin, Ca dobesilate • Venous ulcer treatment: MPFF, • Additive effect in combination with sclerotherapy, surgery and compression. • Compression + VAD > compression, • Compression necessary but contra-indicated (arterial insufficiency, neuropathies), • Topical treatment: VADs + heparinoids (anti-inflammatory effect + analgesic effect by inactivating histamine and anti- thrombotic effect), • Prevention of venous hypertension and inflammation, protection of venous valves; MPFF
  • 32. Compression Therapy • Bandages – Short strech bandages – Four layer bandages – Hard-stiff bandages (Unna Bout) • Compression stockings • İntermittant pneumotic compression devices
  • 33. Effects of Compression Therapy • Reduces edema • Reduces venous volume • Increases venous flow • Reduces venous reflux • Improves venous pump • Increases lymphatic flow
  • 34. Recommendations for Compression Stockings Indication Grade of recommendation and evidence A (10-14 mmHg) C0S, C1S B I (15-21 mmHg ) C2S C2S (cerrahi sonrası) C2S (skleroterapi sonrası) B B C II (23-32 mmHg) C3 C4 DVT sonrası B A III (34-46 mmHg) C5 C6 A CEN pressure gradings
  • 35. Compression Bandaging • There is no proved superiority in comparison of different bandaging styles (i.e, circular, figure of eight or spiral). • Only, the superiority of multi-layer (four layer) bandaging was shown in treatment of active venous ulcers.
  • 36. Intermittant pneumatic compression devices • Shortens the healing time in treatment of active venous ulcers. (recommendation and evidence level B) Caution in arterial insufficiency: Can not be used if the patient has ABI<0,4, or can be used after revascularization Should not be used in dermatitis origined from synthetic materials used for compression.
  • 37. Adaptation of lifestyle There is no evidence-based recommendation about their efficacy. • Walking exercises • Avoiding from long-time stand up position • Avoiding from obesity • Leg elevation and bed rest • Avoiding from heat, hot water
  • 38. Ineffective adjuncts to ulcer care • Hyperbaric oxygen — • Electromagnetic therapy — . • Therapeutic ultrasound — • Medical management of lower extremity chronic venous disease Literature review current through: Sep 2013.
  • 39. Conclusion • The combination of medical treatment with compression provides considerably superior healing results and better life quality than the compression alone. • Medical treatment has a considerable efficacy in almost every stages of CVD by both alleviating the symptoms and preventing the progression of symptoms as well as complications.

Editor's Notes

  1. Among the many proposed mechanisms linking venous hypertension to macroscopic and microcirculatory changes, “leukocyte-endothelium interaction” is currently the most credible. Activated endothelium, leukocytes, mast cells, macrophages, fibroblast, target the extracellular matrix as well as parenchymal cells and produce a spectrum of inflammatory mediators and metabolites, cell membrane adhesion molecules, prothrombotic receptors, growth factors, and chemotactic agents. The inflammatory cascade in chronic venous insufficiency serves on one hand as a tissue repair mechanism but with resulting valvular incompetence may favor further inflammation which leads to varicosities and venous stasis and ultimately the occurrence of ulcers.
  2. At the level of microcirculation: Hyperpressure at the capillary level induces capillary leakage allowing the accumulation of fluids, protein, and red blood cells in the interstitial space, forming edema. Red blood cell degradation products and protein extravasations are the initial inflammatory signals that result in leukocyte migration into the interstitial space. A cascade of pathologic events occurs during leukocyte migration into the dermis and the end product is intense dermal fibrosis and tissue remodeling leading to skin changes and finally to open ulceration.
  3. So how do symptoms occur at the early beginning of the disease? It is thought that the cascade of inflammation that follows activation of the venous endothelium after its interaction with leukocytes induces the release of abundant biochemical mediators that are presumed responsible for stimulating the sensory venous nerve extremities of C fibers present in the venous wall, relaying venous pain. These C fiber extremities are believed to act as nociceptors (C nociceptors), which are primarily sensitive to chemical mediators. The early inflammation associated with changes in the venous valves and wall can thus explain why patients suffer from pain from the earliest stages of the disease process.
  4. NEJM review article added on the previous theories abut chronic venous disease: CVD is now considered as an acquired inflammatory disease that should be treated as early as possible with a drug that is capable of preventing venous hypertension, reflux and inflammation.
  5. Daflon 500mg was referenced in the NEJM publication as a treatment to inhibit inflammation.