Other: Skin Surgery Flashcards
In what situations is the excretion of lignocaine reduced?
In liver, renal and cardiac failure
In the young and the elderly
Name the 5 layers of the scalp from superficial to deep
Skin
Connective tissue
Aponeurosis
Loose connective tissue
Periosteum
How is Mohs micrographic surgery performed?
Cancer (with margin) is removed in thin layers
Each layer is immediately checked under the microscope and further layers taken until all the skin cancer has been fully removed
What form of excision is shown in this picture?
Elliptical excision
What is the most commonly used local anaethetic?
Lignocaine (lidocaine)
Which two cranial nerves supply the face?
CN V - sensory to the face, motor to the muscles of mastication
CN VII - taste (special sensory), motor to the muscles of facial expression
What would curettage and cautery be used for?
Scraping of abnormal tissue
When should the use of adrenaline in surgery be avoided?
Avoid in fingers and toes
Avoid in patients with cardiac disease, and patients on psychotropic drugs
What is adrenaline used for in surgery?
Prolongs anaesthesia and reduces bleeding
What would a snip excision be used for?
Treatment of minor skin lesions e.g. skin tags
What is a punch biopsy?
Uses an instrument called a punch to remove a circular section through all layers of the lesion; the section can then be examined
What is electrosurgery used for?
Haemostasis
Treatment of minor skin lesions e.g. skin tags
How is a shave excision performed?
Flat blade of a scalpel drawn through a raised lesion to remove it
What is the maximum dose of lignocaine?
50ml 1% lignocaine with adrenaline
