Burn update 2013 by Dr. Sunil Keswani, National Burns Centre, Airoli
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Transcript of Burn update 2013 by Dr. Sunil Keswani, National Burns Centre, Airoli
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SURGICAL MANAGEMENT IN BURNS
Dr S. M. KeswaniNational Burns CentreAiroli, Navi Mumbai
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Procedures
• Tracheostomy
• Central line insertion
• Escharotomy
• Debridement.
Dr. Sunil Keswani, National Burns Centre, www.burns-
india.com, [email protected]
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COMPARTMENT SYNDROME
• Signs and symptoms:– Unrelenting deep pain– Pallor– Progressive paresthesias– Progressive decrease, absence of pulse
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Eshcarotomy
May limit chest excursion
Rule out other causes of respiratory distress
Incisions along anterior axillary lines, across costal margin to midline
Only burnt tissue divided, not fascia
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Burn wound management
• Circumferential extremity burns:– Edema under eschar– Remove all rings,
jewelry– Elevate, active motion– Check skin color,
sensation, capillary refill, Doppler pulses q1h
– Rule out hypotension, arterial injury
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Burn wound management
• If have loss of palmar arch pulse
+ Full-thickness burn dorsal hand
+ Normal radial and ulnar pulses
= Dorsal hand escharotomy
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
Finger escharotomies rarely indicated - consult accepting burn surgeon
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Extremity compartment syndrome:–Edema beneath deep fascia–Seen in massive resuscitation, high
voltage injuries, delay in escharotomy (ischemia-reperfusion), crush
–Opening pressure >30 mmHg–Fasciotomy in OR
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Meshed graft Vs Meek Micrografting Vs Sheet Graft
• Acute burns always meshed or meek micrografting for better takes
• Reconstructive procedures like overgrafting and release of contractures always sheet grafting for better cosmesis
• Meek micrografting gives wider coverage and more predictable takes than mesh grafting but more expensive
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSSurplus cutting
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSPositioning on plate.
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSDermatome cut through
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSAdhesive Spraying
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSAdhesive Spraying
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSCork removing.
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSGauze expantion
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSGauze expanded.
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSMicrograft positioning
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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MATERIALS & METHODSAfter gauze removal. 7th day.
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Early Excision“Injured dermis
defends itself poorly against infection, so a program of slough excision with immediate grafting seems better than focusing on antibacterial measures.”Z. Janzekovic
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Early Excision
• Definition:– Janzekovic- 3-5 days, rational
• not yet colonized• definitive tissue damage is established• prior to wound contraction
– Baumer and Henrich - 5-6 days– Davies- 7 days
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Early Excision
• Criteria:– diagnosis of deep burns established– patient able to tolerate major surgery– normal coagulation parameters– adequate donor areas– +/- inhalation injury
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• 1970’s: Janzekovic Tangential Excision– performed early before colonization– patients in better physical condition– improved scar quality– fewer contractures– shorter hospital stay– fewer dressing changes
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• 1950’s: – Rare survival for burns >40%– Burn wound sepsis less of an issue
• 1950-70’s:– normal practice to wait for eschar separation– wound contraction– increased metabolic rate
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• 1969: Introduction of SSD– decreased bacterial colonization of wounds– lower conversion rates to full thickness– increased tendency to watch and wait– prolonged period to eschar separation– large unsightly hypertrophic scars
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• Value of early excision and grafting– 1980s - in otherwise healthy subjects– 20% TBSA– led to shorter hospitalization– early return to work– better cosmetic result– less expenditure
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• No increase in overall blood loss• No increase in cumulative operating time
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• Elderly Population (>50yrs)– advantages less clear– Decreased hospital stay – Fewer septic episodes– Early DONOR wound closure
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• Pediatric Population:– <50%TBSANO significant change in
• 1- length of stay• 2-blood requirements• 3- mortality
– >50% TBSA• decreased mortality.
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Historical Perspective
• Mesh Grafting– greater coverage with available auto graft– enhanced wound drainage– decreased number of procedures
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Order of excision
• Areas easy and quick to excise: trunk and legs
• Joints and throats• Hands and face
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Allograft
• In patients with massive burn injury, temporary coverage with allograft is essential
• Development of US Navy Skin Bank in Maryland in 1949 signified the emergence of modern day skin banking
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Allograft• 1881 - First use of allograft by harvesting a suicide
victims skin to use for closure of a burn wound
• Large part initially took, during second and third weeks and “erysepelatous inflammation” resulted
• 1944 - Successful take of graft stored in vaseline gauze for 3 weeks at 4 - 7 C
• Use of allograft became standard in 1950’s when their use in extensive burns as a biological dressing was reported
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Clinical Use of Homograft
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Post-Op photographs
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Use of AutograftRelease of a SEVERE POST BURN
CONTRACTURE
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Allograft
Classic benefits of allograft as a physiologic and mechanical barrier:
Reduction in water, electrolyte and protein loss
Reduction in energy requirements secondary to the attainment of a closed wound
Reduction in wound infection ratesReduction in painConservation of autograftsImproved general welfare and psychological
outlook of the patientDr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Porcine skin being meshed
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Covered with Acticoat
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Alloderm
• Processed human cadaveric skin• Removed epidermis, extracted dermal cells• Template for dermal regeneration• Good take rates • Reduce subsequent scarring • Allowing grafting of an ultra-thin split-skin graft
as a one-stage procedure
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Integra
• Most widely accepted synthetic skin substitute• Bilaminar structure• The median ‘take’ is 85%• Two-stage procedure, with a minimum interval
of 3 weeks between the application of the Integra and the split-skin grafting
• Relatively expensive
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Cultured autologous keratinocytes
• Grown in vitro and then applied to wounds • Take of cultured epithelial autografts depends
on the wound bed• Expensive • Skilled labour and quality control, • 3–5 weeks to produce 1.8m2 confluent sheets
of cells from a 2 cm2 biopsy• Fragile sheets• Blistering, infection, and contractures.
Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
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Wound Closure
• Composite Materials Strategy– Allograft skin with cultured autologous
epidermal cells (Cuano et al.)– Gelled collagen seeded with epidermal cells
and fibroblasts (Bell et al.)– Collagen-glycosaminoglycan (CAG) matrix
with epidermal cells and fibroblasts– Dermal matrix from fibroblasts on vicryl
meshDr. Sunil Keswani, National Burns Centre,
www.burns-india.com, [email protected]
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Dr. Sunil Keswani, National Burns Centre, www.burns-india.com, [email protected]
www.skindonation.in Dr Sunil Keswaniwww.burns-india.com 98200 31881 [email protected] Donation Helpline: +91 22 27793333
THANK YOU