acute pancreatitis: current aspects in diagnosis and...
TRANSCRIPT
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Acute Pancreatitis:
Current aspects in
Diagnosis and Treatment
Tercio De Campos, MD, PhD, FACS
Associate Professor
Faculdade de Ciências Médicas da Santa Casa de São
Paulo
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Introduction
Acute Pancreatitis
Common disease
Incidence
50-80 patients/year/100,000 inhabitants USA
Toouli et al - J Gastroenterol Hepatol, 2002
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Acute pancreatitis in Brazil - 2006
Brasil: 27,077 15.9 patients/100,000 inhabitants/year
São Paulo: 1,999 19.2 patients/100,000 inhabitants/year
De Campos et al. Rev Col Bras Cir, 2008
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Introduction
Acute pancreatitis
Santa Casa:
2 patients / week
2 severe patients / month
Serviço de Emergência FCM Santa Casa SP
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Introduction
Treatment of Acute Pancreatitis
Controversial in many topics
Difficulties in clinical trials
Small number of severe AP patients per center
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How you define severity in acute pancreatitis? What’s your choice for nutrition in patiens with acute pancreatitis? What’s the best period to perform an operation in a patient with
severe acute pancreatitis?
De Campos et al. Rev Col Bras Cir, 2008 / DDW 2008 - San Diego, CA
Rev. Col. Bras. Cir. 2008; 35(5): 304-310
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Diagnosis
Clinical presentation
AMILASE / LIPASE > 3x
CT (ultrasound / MR)
2 out of 3 = acute pancreatitis
Banks PA & Freeman ML - Am J Gastroenterol, 2006
Current definition
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patiens
Antibiotics
Nutrition
ERCP
Surgical treatment
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• Death in acute pancreatitis
1-2nd week after 2nd week X
SIRS
Organic failure
Necrosis +
Infection
Severity
Deitch et al, Surg Clin North Am 1999
Schmidt et al, Gut 1999 Toouli et al - J Gastroenterol Hepatol, 2002
Clancy et al - J Gastrointest Surg, 2005
De Campos et al - World J Emerg Surg, 2006
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Severity • 2 factors determine the prognosis of a patient
with acute pancreatitis
Organic failure Necrosis/Infection
Toouli et al - J Gastroenterol Hepatol, 2002
Werner – Pancreatology, 2003
Clancy et al - J Gastrointest Surg, 2005
De Campos et al - World J Emerg Surg, 2006
Classifications of severity
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Classification of Acute
Pancreatitis
Marselha
Meeting
1963
Marselha
Meeting 2
1984
Atlanta
Meeting
1992
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Severity evaluation
Phase 1 - SIRS and
Organic failure
DDW 2008
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Severity evaluation
Phase 1 - SIRS and
Organic failure
DDW 2008
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C Reactive Protein CT scan
Necrosis
Local evaluation Phase 2 - Necrosis and
Infection
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CRP - 48 hours
> 150 mg/L
Accuracy 85% for necrosis
Werner – Pancreatology, 2003
Phase 2 - Necrosis and
Infection
Local evaluation
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TC – gold standard / not before 72 hs
Peritonitis / Abdominal distention
APACHE II ≥ 8 / SIRS / Marshall ≥ 2 / SOFA ≥ 3
US with peripancreatic fluid or pancreatic alterations
CRP > 150 mg/L
Not improving / worse / difficult to feed
Need to confirm diagnosis
Phase 2 - Necrosis and
Infection
Serviço de Emergência - FCM Santa Casa SP
Local evaluation
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TOTAL = 0 - 10
Tomographic Classification (Balthazar-Ranson – Tomographic severity index)
Local severity
Phase 2 - Necrosis and Infection
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Local complications
Interstitial edematous pancreatitis
Necrotising pancreatitis (pancreatic /
peripancreatic necrosis)
Acute peripancreatic fluid collection
Acute necrotic collection
Pancreatic pseudocyst
Walled-off necrosis
Early
phase
Late
phase
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Interstitial edematous pancreatitis
Local
complications
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Peripancreatic necrosis
Local complications
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Pancreatic necrosis
Local
complications
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Acute peripancreatic fluid collection
Local
complications
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Acute necrotic collection
Local
complications
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Practical aspects
Assess
-Systemic
complications
-Local complications
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How to assess Systemic complications?
-Ranson
-Glasgow
-SIRS
-Apache II
-SOFA
-Marshall
Repeat in 48 hs
(not possible to Ranson and
Glasgow)
Practical aspects
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How to assess Local complications
-C Reactive protein
-Computed tomography
Practical aspects
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How we do at Santa Casa?
-SIRS
-Apache II
-SOFA
-Marshall
Repeated in 48 hs
and when necessary
Patients with severe
disease have daily scores
Systemic complications
Practical aspects
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Aspectos Práticos
How we do at Santa Casa
-C Reactive Protein - 48 hs
-CT 72-96 hs after the onset of
symptoms in selected patients
Local complications
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Etiologia
50,0%
34,8%
6,1%
8,3%
0,8%
Biliary
Alcohol
Biliary + Alcohol
Idiopathic
Hypertriglyceridemia
Serviço de Emergência – FCM Santa Casa SP
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Anamnesis
Biliary
Alcohol
Medicines
Previous diseases
Laboratory tests - up to 24 hours
Calcium
Triglycerides
Banks PA & Freeman ML - Am J Gastroenterol, 2006 UK guidelines for the management of acute pancreatitis - Gut, 2005
Etiology
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Etiology
Ultrasound
All patients with acute pancreatitis
2nd US if the 1st was negative and there is no obvious
cause
Endoscopic ultrasound if the 1st and the 2nd were
negatives and there is no other cause
Banks PA & Freeman ML - Am J Gastroenterol, 2006 UK guidelines for the management of acute pancreatitis - Gut, 2005
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Etiology
Excluir
Biliary
65-85% of patients
Alcohol
Dyslipidemia
Biliary cystic disease
Pancreas Divisum
Chronic pancreatitis
autoimmune 5-6%
Duodenal obstruction
Medicines
Idiopathic pancreatitis
Pancreatic neoplasms
3% < 40 y/o / 25% > 60 y/o
Toxins
insecticides / scorpions
Trauma
Vasculitis
Infections
virus / ascaris
Celiac disease
Genetic (PRSS1 / CFTR / SPINK-1)
Idiopathic Guda & Forsmark, 2008
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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There is no specific treatment :(
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Antibiotics
Mild acute pancreatitis
No place
Rare (cholangitis)
Severe acute pancreatitis
Therapeutic
“Prophylactic”
A lot of doubts and discussions
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antibiotics in acute pancreatitis
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Lack of evidence
x
Group of patients with benefits USA
ACS / SSAT: do no recommend
AGA: split
Europe
UK / Netherlands: do no recommend
Germany / Italy: use
Asia / South Africa / South America: use
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IHPBA, Buenos Aires 2010
Hjalmar van Santvoort, M.D
“Although we know that a group of
patients benefits from the use of
prophylactic antibiotics, studies fail to
prove this benefit.”
Acute pancreatitis study group
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Gastrão 2011
São Paulo
Santhi Swaroop Vege, M.D
“I use prophylactic antibiotics in
patients with severe acute
pancreatitis with necrosis> 30%
because I see their benefit, despite
Michael Sarr get mad at me”
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Reduction in pancreatic necrosis
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CONCLUSION: Current evidences do not support prophylactic
antibiotics as a routine treatment for SAP, but the potentially
benefited sub-population requires further investigations.
Conclusion: The current evidence does not support the use of prophylactic
antibiotics as routine in severe acute pancreatitis, but further studies may
show that a sub-population can benefit from its use.
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Current position about the use of
antibiotics in acute pancreatitis
There is no definitive conclusion
Probably there won’t be a definitive conclusion
Each hospital have to determine its policy
“On demand” X Routine
No study has shown that the use of antibiotics
impairs the evolution of these patients
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• 1- Should we use prophylactic antibiotics?
• Yes (personal opinion). There is no agreement.
• 2- In which patient?
• Pancreatic necrosis > 30%
• When there is the diagnosis of necrosis
• 3- How to use it?
• a) Which one?
• IMIPENEM or CIPROFLOXACIN + METRONIDAZOL
• b) How long?
• 10 – 14 days
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Pancreatite aguda - Nutrição
Enteral nutritional support should be used
as first choice
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• Journal of Gastrointestinal Surgery Vol. 9, No. 3, 2005
Parenteral nutrition has not shown advantages in any study
Enteral nutrition
•Lower septic complicationsReduction in organ failureReduction
CRPShorter hospital stay
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Prevention of infection
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Nutrition in Acute Pancreatitis
• Parenteral nutrition
• It does not stimulate
pancreatic secretion
• Infections complications
• Procedure complications
• High cost
Enteral nutrition
REDUCTION OF BACTERIAL TRANSLOCATION
Physiologic
Lower cost
Some stimulus in pancreatic secretion
Needs to be placed by endoscopy or radioscopy
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Nutrition in Acute Pancreatitis
Parenteral nutrition x Enteral nutrition
Enteral nutrition
Tube placed in the jejunum
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Nutrition in Acute Pancreatitis
• Current position (nutrition within 48 hours)
Enteral nutrition is preferred
No vomits, distention or significant pain
Oral diet - liquid with low-fat
Nasojejunostomy tube
start with 20 ml/h semi-elemental diet
progression 10 ml/h/day
Parenteral if significant intolerance (rare)
Keep enteral nutrition in small volume
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Severe acute pancreatitis x ERCP
Cochrane Review, 2004
Ayub K, Imada R, Slavin J
No clear consensus
Indications:
*cholangitis
*progressive jaundice
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ERCP
Cholangitis (jaundice + Biliary dilation +
fever > 38.5oC / leukocytosis > 18,000)
Calculus impacted in the papilla
•*bilirubin curve (> 2.5)
Before cholecystectomy
•*if predictive factors of
choledocholithiasis
Severe Acute Pancreatitis x ERCP
Current position
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Topics to discuss
How to confirm the diagnosis
How to determine severity
How to determine etiology
How to treat these patients
Antibiotics
Nutrition
ERCP
Surgical treatment
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Tratamento Cirúrgico
• INFECTION =
SURGERY <5% patients
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How to make the diagnosis of infection?
How to decide by the surgical treatment?
How to operate?
Toouli et al - J Gastroenterol Hepatol, 2002
De Campos et al - World J Emerg Surg, 2006
Questões
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Diagnosis of Infection
Clinical
Laboratory
* Procalcitonin / CRP
Computed Tomography
Fine needle aspiration (gold standard)
"Important the diagnosis at the right time, but
not necessarily very early" Bakker et al. Curr Gastroenterol Rep, 2009
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Clinical
Patient at risk (extensive necrosis)
Probable time (from the 2nd week)
Worsening
New organ failure
worsening of organ failure already diagnosed
Diagnosis of Infection
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○Study in 5 centers with 104 patients
○Procalcitonin 3-4 days after AP
○ ≥ 3.5 ng / ml on 2 consecutive days
○Sensitivity 93% specificity 88%
○Pancreatic infection with organ failure
Early assessment of pancreatic infections and overall
prognosis in severe acute pancreatitis by procalcitonin
(PCT): a prospective international multicenter study.
Rau BM, Kemppainen EA, Gumbs AA, Buchler MW, Wegscheider K, Bassi C, Puolakkainen PA, Beger HG.
Ann Surg. 2007 May;245(5):745-54.
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Procalcitonin x CRP
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Computed Tomography
Gas: 30-50%
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Fine-needle aspiration
Gold-standard (1980’s)
Guided by CT or US
Gram / Culture
False-negative: 20-50%!!!!
Bakker et al. Curr Gastroenterol Rep, 2009
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How to make the diagnosis of infection?
How to decide by the surgical treatment?
How to operate?
Toouli et al - J Gastroenterol Hepatol, 2002
De Campos et al - World J Emerg Surg, 2006
Questões
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Pancreatite Aguda Grave - Cirurgia
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Surgical treatment Early versus late necrosectomy in severe
necrotizing pancreatitis Mier J, Leon EL, Castillo A, Robledo F, Blanco R. Am J Surg. 1997 Feb;173(2):71-5.
36 patients with severe acute pancreatitis
Group A (n=25)
○ Necrosectomy 48-72 hours
○ Mortality 58%
Group B (n=11)
○ Necrosectomy after 12 days
○ Mortality 27%
Results with no significance
Odds ratio for mortality: 3,4x greater in Group A
Study discontinued due to high mortality in Group A
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Surgical Treatment
Werner – Gut, 2005
Late surgery (after 2 weeks)
Reduces risk of bleeding
Removal of small tissue viable
Reduces endocrine and exocrine insufficiency
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Treatment of infected necrosis
Time of intervention
Great tendency to be delayed
Pancreatic necrosis and peri-pancreatic tends to
delimit in 3-4 weeks, which facilitates the
procedure
The impact of an additional immune stress in an
initial stage can be critical to the evolution of the
patient
Average time for intervention now: 26-33 days
Bakker et al. Curr Gastroenterol Rep, 2009
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It is possible to treat clinically a patient
with infected necrosis?
INFECTION =
SURGERY???
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Clinical treatment 12.5% x 20% Surgical treatment
Mortality
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Conservative management of infected necrosis
complicating severe acute pancreatitis
Douglas G. Adler, Suresh T. Chari, Tamela J. Dahl, Michael
B. Farnell, Randall K. Pearson
Am J Gastroenterol, 2003
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Avoid early surgery (before 14 days)
Pancreatic infection without organ failure consider
nonoperative treatment
Pancreatic infection with organ failure consider
nonoperative treatment if up to 14 days of evolution
The pancreatic infection is indicative
of immediate surgical treatment in
Severe Acute Pancreatitis?
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Early operation
Bowel complications
Necrosis / perforation
Hemorrhagic complications
fail in arteriography and embolisation
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How to make the diagnosis of infection?
How to decide by the surgical treatment?
How to operate?
Toouli et al - J Gastroenterol Hepatol, 2002
De Campos et al - World J Emerg Surg, 2006
Questões
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Surgical treatment
• How to operate?
Drain collections
Necrosectomy
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M. Yousaf et al. - Br J Surg, 2003
Surgical treatment
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Werner – Gut, 2005
Surgical treatment
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Serviço de Emergência da Santa Casa - SP
Surgical treatment
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Surgical Treatment
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Minimally invasive treatment
Transparietal
Laparoscopic
Endoscopy
Retroperitoneal necrosectomy
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Conclusion Confirm the diagnosis
Severity assessment
Look for the cause
No specific treatment / Gallbladder stays at the hospital
Antibiotic in necrotizing pancreatitis is controversial
Enteral nutrition!
ERCP in cholangitis
Surgical treatment
Infection + organ failure
Late is better
Step-up approach