surgery1 Flashcards
suttering techniques
simple interrupted sutures
continuous running sutures
vertical and horizontal sutures
sub-cuticular sutures
staples
tape
Time of suture removal
Face(3-5) days
scalp(7-10)days
Arm(7-10 days)
leg(10-14 )days
Trunk (10-14) days
FACTORS AFFECTING WOUND HEALING
There are 2
local factors and systemic factors
LOCAL FACTORS
wound infection
foreign body
wound hyporperfusion
mechanical stress eg tension
wound necrosis
oedema
seroma
haematoma
SYSTEMIC FACTORS
protein malnutrition
shock
obesity
jaundice
diabetes
aging
smoking
collagen disease
vascular disease
drugs
Problematic healing
contracture-results into scar shortening and can reduce joint mobility
hypertropic scar-which is usually confined to the wound
keloid-extends beyond the wound into normal tissue.it creates the scar larger than the original wound
Surgical complication
LOCAL COMPLICATIONS
haemorrhage
haematoma
seroma
wound dehiscence
surgical site infection
SYSTEMIC COMPLICATIONS
1.Respiratory complications
. pulmonary aspiration
.post operative pneumonia
.fat embolism
.post operative pleural effusions and pneumothorax
.deep venous thrombosis
.Pulmonary embolism and venous thromboembolism
urinary retention
2. GIT COMPLICATIONS
.Ileus and early post op complications
3 PSYACHIATRIC COMPLICATIONS
.Post operative psychosis
Basic architecture of operating zone( 4 zones)
protective/semi-restricted zones(changing room, post-op rooms, transfer bay, store and records)
clean /unrestricted zone-connect protective zone to aspetic zone
sterile/restricted zone-operation room
disposal zone
sterilization techniques in surgery
Thermal(steam under high pressure, dry heat or air)
chemical(ethylene oxide gas, hydrogen peroxide plasma)
Radiation(microwave,xray)
Bacterial load classification
class 1-clean wounds-no sign of acute infection/inflammation, no sign of contamination and no sign of entry into RS/GIT OR GUT
class 2-clean contaminated wound-There is entry into GIT,GUT and RS without significant contamination and there is a minor violation of septic techniques
class 3-contaminated wounds-there is entry in the GIT,GUT and RS with major contamination and there is also major breaking of septic techniques and acute inflamation, it involve fresh traumatic wounds
class 4-dirty wound-these are traumatic wounds with dead tissues, foreign bodies, feacal contamination without treatment
mode of injury
Abrassions-caused by a grazing and rubbing injury an incision by a sharp objects
laceration-caused by a narrow blunt objects with dull edges, margins are irregular and there is tearing of tissues
puncture/stabs-caused by a sharp pointed object
Gun wounds-caused by a gun there might be entry and exit of the wound
stages of wound healing
inflammatory phase
proliferating phase
epithelization phase
remodelling phase
Classification of sutures
absorbable sutures
non absorbable sutures
synthetic and biological sutures
monofilament and multifilament
Basic principles of suturing
minimise tissue trauma
handle tissue gently
use just enough force to prevent to avoid strangulation.
use the finest needle and sutures
avoid tensional skin
evert the edges while closing do not invert
Ensure equal depth and width on both sides
Types of shock
Hypovolemic shock
cardiogenic shock
distributive shock
obstructive shock