Surgery Flashcards
What two antiseptics are used to prepare the patient?
Iodine
Chlorhexidine
What are the four hand scrub washes?
Chlorhexidine
Iodine
Alcohol
Sterillium
What are Halsteds principles? (7)
Surgical asepsis Gentle tissue handling Accurate haemostasis Preservation of vascularity Careful approximation of tissue Obliteration of dead space No tissue tension
What are the six stages of wound healing?
Acute inflammatory Parenchymal regeneration Re-epithelialisation and cell migration Proliferation of parenchyma and stromal cells Synthesis of ECM Remodelling
What cells are involved in coagulation?
Platelets
What cells are involved in inflammation? (3)
Platelets
Macrophages
Neutrophils
What cells are involved in migration/proliferation? Angiogenesis Epithelium Fibroplasia Contraction
Macrophages Lymphocytes Fibroblasts Epithelial cells Endothelial cells
What cells are involved in remodelling?
Fibroblasts
Describe the initiation coagulation phase of wound healing?
Death of epi/dermal cells Damage to collagenous fibres Small vessel rupture Release of blood into wound Platelet deposition and aggregation Release of cytokines and GF PDGF, TGFb and fibronectin ➡️ fibrin clot
Describe the initiation of the inflammatory phase of wound healing?
Damage attracts and activated infiltrating cells - leucocytes
(Neutro, mono, macro, lympho)
Macrophages remove debris, recruit/activate GF, chemokines, cytokines - phagocytosis, angiogenesis, matrix synthesis regulation