6. Indications and types of operations Flashcards
Indications
Absolute - Vital, urgent, semi-urgent, elective (planned)
Relative
Steps of a surgery
- Insicion
- Opening
- Exploration
- Substantive operation
- Anastomosis and wound revision
- Hemostasis
Bleeding risk: physical exam
Look for petechiae, ecchymoses, spleno-, hepatomegaly and haematomas.
Petechiae = platelet disorders Haematomas = coagulation disorders
Bleeding risk: lab tests
Platelet count: 150 - 400 G/l
INR: should be around 1 (08-1,2)
aPTT
Bleeding risk: Congenital bleeding disorders
von Willebrands disease
Haemophilia
Bleeding risk: Aquired bleeding disorders
Advanced liver disease Drugs Aquired thrombocytopenia Uraemia DIC Primary/secondary fibrinolysis
Bleeding risk: types of bleeding
venous, arterial, capillary
Surgical techniques in haemostasis
Regular business:
Ligation
Suture ligation / stick tie / figure of eight suture
Clips
Sci-fi shit:
Electrocautery
Monopolar diathermy
Bipolar diathermy
Types of drainage
- Rubber bands: used in small wounds
- Penrose/capillary drains: used in large wounds and body cavities
- Open drainage: fluid is drained into the dressing
- Semi-closed drainage: colostomy bags
- Closed drainage: Redon drain
The most common types of surgeries
Amputation
Anastomosis
Bypass
Enterostomy
Enucleation (removal of capsulated organs)
Excochleation (tissue removal with spoon)
Extirpation (removal of full organ)
Excision