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Open abdomen in trauma
Ari Leppäniemi
Abdominal Center
Meilahti hospital
University of Helsinki
Finland
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Frequency and causes of open abdomen
- in 23% (344/1531) after trauma laparotomies
- damage control 66%, ACS 33% Miller 2005
Trauma Vascular General
Damage control 40% 9% 8%
Planned re-explor. 23% 32% 65%
Inability to close 19% 46% 13%
IAP increase 16% 14% 7%
Multifactorial 3% 0 8% Barker 2007
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Outcome in open abdomen
Trauma GI Pancreatitis
No. of patients 25 25 21
Fascial closure 52% 17% 14%
Operations/patient 3.7 4.8 6.1
Mortality 20% 36% 43%
EC fistula 12% 16% 24%
Tsuei et al. 2004
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Outcome after open abdomen in trauma
- n = 344, 68 (20%) died before wound closure
- complications after wound closure (69/276 = 25%)
- wound infection 16%, abscess 11%, fistula 12%
- 34 (12%) died after wound closure
- 7 (3%) from wound complication Miller 2005
- n = 116, 10 (9%) died before wound closure
- 106 survived to wound closure (DFC 63%, SSG 37%)
- abscess 5, fistula 4, evisceration 1, ACS 1, ileus 1 Barker 2007
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Amended classification of open
abdomen
1A Clean, no fixation
1B Contaminated, no fixation
1C Enteric leak, no fixation
2A Clean, developing fixation
2B Contaminated, developing fixation
2C Enteric leak, developing fixation
3A Frozen abdomen, clean
3B Frozen abdomen, contaminated
4 Established enteroathmospheric fistula
Björck et al. Scand J Surg 2016;105:5-10
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Temporary closure of the open abdomen -
what is the best method ?
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In the early days…
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Evolution of temporary abdominal
closure techniques
- first generation: abdominal coverage
- running skin suture, towel clip
- synthetic cover (plastic, mesh etc.)
- second generation: fluid control
- vacuum pack
- third generation: negative pressure therapy
- V.A.C.™
- ABThera™ De Waele and Leppäniemi 2011
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Bolsa de Borraez (Bogota bag)
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Wittmann patch
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Home-made negative pressure dressing
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Vacuum assisted closure
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Systematic review (3169 patients)
Mort. DFC Fist. Absc. [%]
VAC 15 60 3 3
Vacuum pack 27 52 6 4
Wittmann patch 17 90 2 3
Mesh or sheet 26 23 6 2
Dynamic retention sutur. 23 85 nr nr
Bogota bag (silo) 41 29 0 6
Loose packing 39 11 28 nr
Skin only 39 43 nr nr
Zipper mesh/sheet 33 39 14 6
van Hensbroek et al. WJS 2009;33:199
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Comparative studies I
- pre-patch (n=56) before 2004 (Bogota bag, vac pack, VAC,
mesh) vs. patch (n=103) (Wittmann) 2004 onwards
- early fascial closure 59% vs. 65% (p=ns)
- remaining:
pre-patch Patch p
Delayed fascial closure 30% 78% <0.001
Planned hernia 29% 8% <0.001
Abdominal morbidity 9% 11% ns Weinberg et al. 2008
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Comparative studies II
- prospective randomized study, polyglactin mesh vs.
VACx3+mesh (90% trauma, n=51-3 early deaths)
VAC Mesh p
Delayed fascial closure 31% 26% ns
Abscess 44% 47% ns
Fistula 21%* 5%** ns
*all VAC fistulas related to feeding tubes and suture lines
- avoid feeding jejunostomy, prefer nasojejunal tube
**mesh fistula followed colon leak remote from the mesh Bee et al. 2008
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2nd vs. 3rd generation
- prospective randomized study, Barker’s vacuum pack
vs. AbThera
- n = 45 (22+23), 52% abdominal sepsis (rest: trauma)
- primary endpoint: difference in plasma concentration of
IL-6 24 and 48 hours after temporary abdominal closure
- no difference in primary endpoint or other inflammatory
markers
- no difference in fascial closure rates at 90 days
- higher mortality at 90 days with Barker’s vacuum pack
(78% vs. 50%, p=0.04) Kirkpatrick et al. 2015
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4th generation: mesh-mediated
vacuum-assisted gradual closure
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Delayed primary fascial closure
(%)
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What is the best TAC method?
- systematic review of different temporary
abdominal closure methods in peritonitis
- more than 70 studies, >4000 patients
- about 10 different techniques included
better results with negative pressure wound
therapy with continuous fascial traction
- fascial closure rate >70% (highest)
- fistula rate <6% (lowest) Atema et al. WJS2015;39:912
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One year later… 111 patients undergoing mesh-mediated vac-closure
2006-2009
surviving patients underwent clinical and CT evaluation
at 1 year
among 64 survivors who had delayed primary closure
23 (36%) had a clinically detectable hernia
another 19 (30%) had a hernia only detected with CT
the median hernia widths were 7.3 cm and 4.8 cm,
respectively
Conclusion: Incisional hernia rate is high but most of
them are small and asymptomatic Bjarnason et al. World J Surg 2013
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Delayed primary fascial closure
- Ability to close fascia depends
on underlying etiology of the
open abdomen and physiology
- Early fascial closure is better
than delayed fascial closure
- Delayed fascial closure vs.
planned hernia
- How late is late closure ?
- When to accept the hernia?
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Complications after damage control open
abdomen for trauma: effect of fascial
closure
Miller et al. 2005
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Intestinal anastomosis leak rate increases
when fascial closure is delayed
Cothren Burlew et al. 2011
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Mesh-mediated vacuum-
assisted closure technique
or
the “Vacuum-assisted wound
closure and mesh-mediated
fascial traction” (VAWCM)
Petersson U, Acosta S, Björck M. Vacuum-assisted wound closure and
mesh-mediated fascial traction – a novel technique for late closure of the
open abdomen. World J Surg 2007;31:2133-2137.
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1st step: leaving the abdomen open
and using the VAWCM
1. Insert the inner plastic layer covering the viscera
as far laterally as possible
2. Sew a polypropylene mesh to the fascial edges
with continuous suture
3. Cover the mesh and the wound with the sponge
4. Cover the sponge with air-tight plastic sheet
5. Apply negative pressure
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WARNING:
Don’t put the
mesh directly
over the
bowel
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At 1st reoperation
1. Remove the plastic cover and sponge
2. Divide the mesh vertically in the midline (leave 1-2
cm at the ends intact)
3. Remove the plastic covering the viscera
4. Mobilize the abdominal cocoon from lateral
adhesions (bacterial sample)
5. Insert new plastic sheet over the viscera
6. Tighten and close the mesh in the midline with
continuous suture
7. Apply sponge, plastic cover and negative
pressure as before
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Repeat and tighten with new negative
pressure dressing every 2-3 days
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Aim: Delayed fascial and skin closure
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Final step
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Sometimes you need little help…
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Component separation to help
closure augmenting delayed fascial closure
with minimally invasive component
separation (CS) (n = 16)
during TAC treatment in 7 patients
DFC achieved in 3/7
at the fascial closure in 9 patients
DFC achieved in 9/9, no dehiscence
CS at the time of delayed fascial
closure results in high closure rate
Rasilainen et al. Scand J Surg 2015
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When to accept the hernia
- re-explorations are no longer needed
- conditions favoring planned hernia strategy
- inability to reapproximate the retracted
abdominal wall edges
- sizeable tissue loss
- risk of tertiary ACS, if primary closure
attempted
- inadequate infection source control
- anterior enteric fistula
- poor nutritional status Leppäniemi 2008
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“Skin only” closure
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Planned hernia with early skin-grafting
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Summary
- aim for early fascial closure after open abdomen
- trauma patients have higher closure rates than
patients with peritonitis or pancreatitis
- early fascial closure (within 8 days) reduces
complications (avoid fistulas!)
- late fascial closure (>8 days) is possible up to 2-3
weeks and is safe as planned hernia strategy
- when unable to close, think planned hernia at 3 weeks
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Thank you !