theatre safety dr.abdulwahid m salih ph.d. surgery
TRANSCRIPT
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Theatre safetyDr.AbdulWAHID M Salih
Ph.D. Surgery
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Surgical Scrub
1.Remove all hand or arm jewelry.
2.Keep nails short .
3.Clean under each fingernail prior to performing the first scrub of the day
4.Scrub the hands and forearms up
to the elbows (typically 2-5 minutes).
5.After the scrub, keep the hands up and away from the body with the elbows flexed.
6.Dry hands with a sterile towel
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PATIENT SKIN ANTISEPSIS/SKIN PREP1.Thoroughly wash and clean at and around the
incision site to remove gross contamination.
2.Apply perioperative antiseptic skin preparation in concentric, enlarging circles, moving from the incision towards the periphery.
3.The prepared area must be large enough to incorporate any likely extension of the incision or creation of additional incisions or drain sites, if necessary.
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Masks
• Protects the health care
Worker’s face from exposure• Some studies have raised questions about their efficacy
and cost-effectiveness with regard to reducing ssis.
• Masks And Protective Eye Wear Be Worn Whenever Splashes Can Be Anticipated
• All individuals entering restricted areas of the operating room suite should wear a mask
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Hoods, caps• Reduce contamination of the field by organisms
shed from the hair and scalp.• Personnel should cover their head and facial hair
when in the semirestricted and restricted areas of the surgical suite.
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Shoe covers and footwear • Are used to maintain sanitation• When badly soiled, should be removed before
leaving the operating room.• Not been shown to reduce ssi risk
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Sterile gloves• Worn when performing all sterile procedures,
such as open wound dressing changes.
• Non-sterile, medical grade gloves
Can be used for non-sterile activities.
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Operating room, sterile gloves(a) To minimize the transmission of microorganisms
from the surgical team’s hands to the patient(B) To prevent exposure of the team members’ hands
to the patient’s body fluids and tissues.
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Double-gloving• Reduces the opportunities for perforations of the
inner glove as well as cutaneous exposures of the hand• Reducing the risk of surgical cross-infection• Should be used routinely in all surgical procedures
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Gowns and a garment• Create a barrier between the surgical field
and potential sources of bacteria. • Maintain An Isothermic Environment For Patients And Health Care Workers. • Chosen Based On;
1. Type Of The Operation,
2. Impermeability3. Comfort4. Cost.
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Adhesive incise drapes• Adhesive incise drapes have been evaluated in
several studies• Have not been shown to be superior in controlling
wound infections when compared with standard skin preparation and draping.
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Diathermy• Generation of heat in body tissues by means of
radiofrequency energy (passage of an electric current through the tissues).
• Two basic patient circuits are used
1. Monopolar
2. Bipolar
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MONOPOLAR• The patient forms part of the electrical
circuit, only one side of the generator output is connected to the active electrode.
• The other side is connected to a large patient return plate.
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Completed Circuit
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BIPOLAR• The current flows between the tips of the forceps• One tip acting as an active electrode and the
other as a return.
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EFFECTS OF SURGICAL DIATHERMY(a) Coagulation - haemostasis with a small amount
of adjacent tissue damage
(B) cutting - tissue cutting with minimal tissue damage
(C) fulgaration - haemostatsis with considerable tissue necrosis
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Potential hazards• Electrocution
• Inadvertent Burn;
To The Patient At A Remote Site
And To The Surgeon
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Potential hazards• Fire Associated With Pooled Alcohol-based
Antiseptics,
• Explosion Of Flammable Anaesthetic Gases,• Interference With The Function Of Cardiac
Pacemakers.
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Operating design
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Operating room
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Operating room environment• plays an important role in reducing the SSI.• A number of activities that occur in this
environment are controlled by the surgical team. • Standards for airflow and ventilation
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Airflow and ventilation
• Clean air under positive pressure is supplied• positive pressure prevents airflow from less clean
areas into cleaner areas.• Heating, ventilation, and air conditioning
systems remove air contaminants• Disruptions in the airflow patterns redirect
contaminants into the sterile field, increasing the risk of SSI.
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Airflow and filter• The air should be sequentially filtered through two
filters.
• The first filter should be rated as 30% efficient
• the second should be 90% efficient.
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Airflow and ventilation• Are intended to protect patients from ssis • And health care workers from acquiring
infection from patients. • Maintained with a minimum of 15 air exchanges
per hour (20 to 25 air exchanges per hour).
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Operating room temperature• SSI rates increase when a patient is hypothermic. • should be kept between (20⁰ C and 23⁰ C). • should be increased when large areas of body
surface are exposed during surgery;open abdominal procedures, split thickness skin grafting .
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The relative humidity• Maintained between 30% and 60%.
• Low humidity;• increases the risk of electrostatic charges,• which pose a fire hazard, • increase the potential for dust,
• and increase the rate of evaporation• leading to heat loss and hypothermia.
• High humidity;
• increases the risk of microbial growth • uncomfortable for the fully gowned surgical team.2
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Traffic patterns
• The microbial level in room air is directly proportional to the number of people moving about in the room.
• Operating room doors should be closed• The number of personnel
should be limited
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Cleaning, Disinfection, Sterilization
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Cleaning• Cleaning is the removal of visible soil from
objects and surfaces, • Using water with detergents or enzymatic
products. • Thorough cleaning is essential before high-level
disinfection and sterilization.
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Disinfection• A process that eliminates many or all pathogenic
microorganisms, • Except bacterial spores,• Reducing the number of pathogenic
microorganisms to the point where they no longer cause diseases.
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Disinfectant Status Use
Alcohols (70% or 90%) (intermediate-level) bactericidal, tuberculocidal, fungicidal, and virucidal
to disinfect thermometers, medication vials, etc.
Glutaraldehyde (high-level) broad antimicrobial range, fungicidal and virucidal
to disinfect endoscopes, thermometers, and rubber items
Chlorine Compounds (dilution of 1:50 is high-level)
concentrations of 1000 ppm inactivate bacterial spores
to disinfect countertops, floors, other surfaces
Orthophthalaldehyde (high-level) bactericidal, virucidal, fungicidal, tuberculocidal in 12 minutes at room temperature
to clean and process endoscopes
Hydrogen Peroxide (low-level) 6% solutions effective against some bacteria, fungi, and viruses
may be used to clean work surfaces, not widely used in health care settings
Iodine and Iodophors (intermediate-level) vegetative bactericidal, M. tuberculosis, most viruses and fungi, no sporicidal capability
may be used as disinfectant or antiseptic
Phenolics (intermediate- or low-level) most formulations are tuberculocidal, bactericidal, virucidal, and fungicidal
have toxic effects, used as environmental not sporicidal disinfectants
Quaternary Ammonium Compounds not recommended for high-, intermediate- or low-level disinfection
cleaning agents for noncritical surfaces
Disinfection
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Sterilization• A Physical Or Chemical Procedure • Eliminate All Microbial Life, Including
Highly Resistant Bacterial Endospores
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Matching?a
Inotropes 1 Infection a
Steroid therapy 2 SIRS B
Acute tubular necrosis 3 Septic shock C
Fever 4 Severe Sepsis D