Shared Flashcard Set

Details

Leg Ulcers
Leg Ulcers Diploma in Practical Dermatology
21
Medical
Post-Graduate
05/24/2010

Additional Medical Flashcards

 


 

Cards

Term
Define ulcer
Definition
A full thickness loss of epithelium
Term
What is the proportion of leg ulcers due Venous Ulceration, Mixed Arterial and Venous Disease, Arterial Disease
Definition
Venous - 70%
Mixed - 20%
Arterial - 5%
Other - 5%
Term
In a normal leg, what usually happens to venous pressure with exercise (activation of calf muscle pump)? Increase or decrease
Definition
Decrease
Term
What are the dermal consequences of venous hypertension preceding or co-existing with ulceration?
Definition
Lipodermatosclerosis Atrophie blanche Capillary changes (eg. Dilatation, Tortuous distortion, fibrin cuff formation) Oedema Eczema Infection
Term

Which of the following is linked with lymphatic damage in venous leg ulceration?

 

Stap aureus

Strep pyogenes

Definition
Strep pyogenes
Term
What are the signs of chronic lymphoedema?
Definition
  • Cobblestone hypertrophy (Mossy Foot)
  • Hyperkeratosis
  • Squaring off of the toes

 

Term
Other than atherosclerotic peripheral vascular disease, what other conditions may affect the arterial blood flow?
Definition

Outside the wall: Scleroderma, Fibrosis from radiation

 

Wall disease:Vasculitis, Hypertension, Diabetic microangiopathy,

 

Inside the lumen:

Cells - Haemoglobinopathy, Polycythaemia, Thrombocytosis

 

Proteins - Globulinaemias, Myeloma, Familial clotting dis

Term

Leg ulceration.

 

Ulceration over bony prominences is more common in venous ulcer disease.

Definition
False. Arterial
Term

ABPI.

True or false

 

>1.0 may indicate rigid arteries

Definition
True
Term

ABPI.

True or false

 

<0.5 suggests high compression can be used safely

Definition
False. <0.5 indicates critical ischaemia
Term

True or false

 

ABPI = 0.85

High compression can be used

Definition
True
Term

Which of the following topical antibiotics is most likely to result in allergy?

 

Fucidic acid

Metronidazole Gel

Soframycin

Definition
Soframycin. Also neomycin commonly induces a contact dermatitis
Term

Leg ulceration.

 

True or false

 

Colonisation with pseudomonas is best with by use of an astringent eg. Potassium permanganate, followed by topical metronidazole (eg metrotop)

Definition
True
Term

Leg ulcer dressings

 

What type of dressings are most suitable for a dry eschar or sloughy wound with the intention of hydration/debridement?

Definition

Hydrocolloid eg Granuflex

Hydrogel eg Intrasite

Term

Leg ulcer dressings

 

What type of dressing is most suitable for an highly exudative wound ?

Definition
Alginates eg Kaltostat, Sorbsan
Term

In graduated compression bandaging, what pressure is applied at the ankle?

 

Which Eponymous Law is for the calculation of bandage pressure?

Definition

40mm Hg

 

Laplace's Law

Term
What drug has been shown to be beneficial in the healing of venous leg ulcers?
Definition
Aspirin
Term

True or false

 

Superficial vein surgery (ligation or sclerosis of the long and short saphenous systems) improves the rate of healing of venous ulcers?

Definition

False, but it does decrease the rate

of recurrence of ulceration

Term

Leg ulcers

 

True or false

 

Class 1 compression hosiery provides the highest level of compression?

Definition
False - Class 3 is highest compression
Term

What condition is being described:

 

A painful ulcer often starting at site of minor injury.

Starts as small papule and may enlarge rapidly. Characteristic purple, undermined edge.
Associations: IBD, RA, hepatitis , Wegener’s Granulomatosis

Definition
Pyoderma gangrenosum
Term

Leg ulcers – Maggot treatment

Fact: They do not chew the necrotic tissue, they produce enzymes that degrade slough and necrosis.

 

Definition

Leg ulcers – Maggot treatment

Fact: They do not chew the necrotic tissue, they produce enzymes that degrade slough and necrosis.

 

Supporting users have an ad free experience!