peritonitis
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Peritonitis
By;Abrar Hussain Zaidi
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Anatomy of peritoneum
Parietal peritoneum
Visceral peritoneum
Male close peritoneum
Female open peritoneum
Abdominal wall peritoneum
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Peritonitis is an inflammation (irritation) of the peritoneum, the membrane that lines the wall of the abdomen and covers the abdominal organs.
DefinitionDefinition
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Etiology
Causes of peritonitis
Perforation of bowelChemically irritating
material
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Types
Types of peritonitis
Primary peritonitis
Secondaryperitonitis
Dialysis-associated peritonitis
Trauma/
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Types
Types of peritonitis
Generlizedvs
locolized
Chemical vs
septic
Acute vs
chronic
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Diffuse bacterial infection without loss of integrity of GI tract
E-coli commonest organism involved
Primary peritonitisPrimary peritonitis
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Risk factors
-*Liver diseases
-*Chronic renal failure
-*Compromised immune system
-*Pelvic inflammatory diseases
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0
10
20
30
40
50
60
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Gram -ve bacteria
E-coli
K pneumoniae
Pseudomonas species
Proteus species
Streptococcusspecies
Staphylococcusspecies
Anaerobic species
Comman organisms leading to primary pertonitis
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•Acute peritoneal infection
secondary to/resulting from
GI perforation /Trauma/other causes [appendicitis]
Sources-intra-abdominal /extra-abdominal
Secondary Secondary peritonitisperitonitis-:-:
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SourceCauses
Esophagus Boerhaave syndromeMalignancyTrauma (mostly penetrating) Iatrogenic*
StomachPeptic ulcer perforationMalignancy (eg, adenocarcinoma, lymphoma, gastrointestinal stromal tumor) Trauma (mostly penetratingIatrogenic*
Duodenum Peptic ulcer perforationTrauma (blunt and penetrating) Iatrogenic*
Biliary tract CholecystitisStone perforation from gallbladder (ie, gallstone ileus) or common ductMalignancyCholedochal cyst (rare) Trauma (mostly penetrating) Iatrogenic*
Common Causes of Secondary Peritonitis
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SourceCauses
Small Bowel
Ischemic bowelIncarcerated hernia (internal and external) Closed loop obstructionCrohn diseaseMalignancy (rare) Meckel diverticulumTrauma (mostly penetrating
Larg bowelIschemic bowelDiverticulitisMalignancyUlcerative colitis and Crohn diseaseAppendicitisColonic volvulusTrauma (mostly penetrating) Iatrogenic
Causes of Secondary Peritonitis
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SourceCauses
Pancreas PancreatitisTrauma (blunt and penetrating) Iatrogenic*
Uterus, salpinx, and ovaries
Pelvic inflammatory disease (eg, salpingo-oophoritis, tuboovarian abscess, ovarian cyst) Malignancy (rare) Trauma (uncommon)
Common Causes of Secondary Peritonitis
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Chronic peritonitis
TuberculosisNon-specificDiverticulitisPID
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This is an acute or chronic inflammation (irritation and swelling)
of the peritoneum (lining of the abdominal cavity) that occurs in people receiving trauma/post-op/
peritoneal dialysis.
Post traumaticPost traumatic
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Treatment typically involves;
Surgery and antibiotics.
In cases associated with peritoneal dialysis, antibiotics may be infused through the dialysis catheter
TreatmentTreatment
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Intra abdominal abscess
localized peritonitisDefinition :- collection of pus walled-off from rest of peritoneal cavity by inflammatory adhesions and viscera
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Number of bacteria exceed host’s ability to terminate infection
complication --may lead to diffuse bacterial peritonitis
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Classification of intra abdominal abscess
Pelvicabscess
Sub phrenic abscess
Mid abdominalabscess
Intra abdominalIntra abdominal abscessabscess
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Sub phrenic abscess35% are right sided abscess
25% are left sided abscess
20% are multiple abscess
EtiologyEtiology-: -:
Direct contamination after surgery . Local diseases Direct contamination after surgery . Local diseases or injuryor injury. .
Mortality rate is 25% to 40%Mortality rate is 25% to 40%
Causes of deathCauses of death-: -:
Uncontrolled infectionUncontrolled infection
MalnutritionMalnutrition
Prolong hospitalizationProlong hospitalization
pulmonary embli pulmonary embli nasocomial infectionnasocomial infection
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Mid abdominal abscess
Between transverse colon and pelvis
Right lower quadrant abscess
Left lower quadrant abscess
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Pelvic abscessusually complication of :-
acute appendicitispelvic inflammatory disease
colonic diverticulitis
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Symptoms
abdominal pain dull aching sharp fever chills
loss of appetite nausea vomitinginability to pass gas or feces
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Signs
toxic ill lookingtachypnea tachacardia hypotension
abdomengenerlized gaurding rigidity
tenderness all over positive reboundabsent peristalsis
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Pancreatitis
Splenic rupture &infarc
Splenic aneurysm
Gastritis
Mi
Pneumonia
Intestinal obstruction
Diverticulitis
Psoas abscess
Ectopic pregnancy
Ovarian cyst
Salpingitis
Ureteral calculi
endometriosis
Gallbladder
Hepatitis hepatic abscess
Peptic ulcer
Pancreatitis
Mi
pneumonia
Appendicitis
Intestinal obstruction
DiverticulitisEctopic pregnancy
Ovarian cyst Salpingitis
Ureteral calculiendometriosis
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Investigation
1:-CBC :- leukocytosis2:-RFT3:-Septic work up 4:-Peritoneal fluid sample for chemistry5:-Plain film of abdomen6:-Ultrasonography7:-Computed tomography
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Treatment -Principles1:-Control of infection2:- Remove the source/ decontaminate/ Wash toxins/drain3:- Maintain organ system function4:- Control inflammatory process
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Medical treatment
1:- systemic antibiotic therapy2:- intensive care with hemodynamic, pulmonary and renal replacement
NPO, IVF, Foley catheter3:-nutrition and metabolic support 4:-inflammatory response modulation therapy
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TreatmentEarly control of septic source
Achieved by; Operative treatment Non operative treatment Percutanous drainage Endoscopy/laparoscopy
Systemic treatment Antibiotics Fluids/electrolytes Nutrition
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Treatmentoperative management
principles :-1:- Early and definitive source control
2:- Minimize the load of bacteria and toxin from abdominal cavity
second look operation = sever sepsis
Abdominal closure-provisional
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LaparoscopyInitial laparoscopic examination of abdomen can assist in elimination of etiology
diagnostic, therapeutic
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Prognosis -Primary peritonitis
The overall mortality rate of patients with SBP may exceed 30% if diagnosis and treatment are delayedless than 10% in fairly-well compensated patients with early therapy
Recurrent episodes within 1 year represent 70% of patients the mortality rate approaches 50% long-term antibiotic prophylaxis decreased to less than 20%
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Prognosis -Secondary peritonitis Mortality rate less than 5% in simple abscess and uncomplicated SP
More than 30-50% in sever infection
Greater than 90% with quadruple organ failure
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Thank you