septicemia - spesialis2.bd.fk.unair.ac.id
TRANSCRIPT
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SEPTICEMIA
Vicky S. Budipramana
Department of Surgery
Medical Faculty , Airlangga University
Surabaya
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BALANCE
• Pro-inflammatory substances are released leucocyte activation and other substances: prostaglandins, kinins, complement, various proteases (such as elastase and cathepsin) and free radicals.
• Anti-inflammatory substances such as: • Antioxidants (Glutathione, Vit A and Vit C), • Protease enzyme inhibitors ( α 2-macroglobulin) • IL-10.
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Systemic Inflammatory Response Syndrome (SIRS)Counterregulatory Anti-inflammatory Response Syndrome (CARS).
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Mediator Inflamasi
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SEPSIS PROBLEMS
• Hyperglycemia
• DIC
• ARDS
• Liver failure
• Stress ulcer
• Intestinal mucoca hypoxia
• Reperfusion injury
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Hyperglycemia
Glucose is largely utilized by tissues that are non-insulin dependent:
• Brain
• Peripheral nervous system
• Bone marrow
• White and red blood cells
• Reticuloendothelial system
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SSC 2016
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Protein C
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Human recombinant Activated Protein C( APC )
• No evidence suggesting that APC should be used for treating patients with severe sepsis or septic shock.
• Withdrawal of Xigris (activated protein C / drotrecogin alfa) from the market by Eli Lilly
• Eli Lily has announced the discontinuation of all other ongoing clinical trials
Martí-C, Solà I, Human recombinant activated protein C for severe sepsis;
Cochrane Database Syst Rev. 2012 Mar 14;(3).
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ARDS
• Acute respiratory distress syndrome is sudden-onset pulmonary edema caused by endothelial injury in the lungs.
• Leaky pulmonary capillaries allow alveoli to be flooded, and the lungs get heavy and are poorly compliant.
• Gas exchange is reduced, and the patient becomes dyspneic and hypoxemic.
• Chest films: Diffuse or patchy infiltrates bilaterally.
Jui J. (2010). Septic shock. In: J. Tintinalli, et al. (eds), Tintinalli’s Emergency Medicine:
A Comprehensive Study Guide, 7th ed. New York: McGraw-Hill Professional, Ch. 146.
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ARDS
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LIVER IN SEPSIS
• Several cells in the liver are involved in the processes: • Hepatocytes (HCs)
• Küpffer cells (KCs)
• Sinusoidal endothelial cells (SECs).
• KCs can produce pro-inflammatory mediators : TNF-α, IL-1, IL-6
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LIVER IN SEPSIS
Acute liver failure was defined by at least two of the
following items:
• Bilirubin of greater than 2.5 mg/dL (> 43 μmol/L)
• Serum alanine transaminase concentration of more
than twice the upper limit (SGPT)
• Prothrombin time of greater than 1.5 times the
control value or an international normalized ratio of
greater than 1.5
Nicolas N, Yoann L; Clinical review: The liver in sepsis; Crit Care. 2012; 16(5): 235.
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STRESS ULCER
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SSC 2016
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HISTOTOXIC ANOXIA
• Endotoksin, TNF-α , dan nitric oxide Kerusakan transpor elektronmitokondriaMenggangu metabolisme energi.
• Disebut cytopathic anoxia atau histotoxic anoxia Ketidakmampuanmemanfaatkan oksigen sekalipun jumlahnya cukup
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ANOXIA Glucose
30 ATP
2 ATP
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Mucosal hypoxia
Hypoxia, followed by change in intestinal
barrier function
Generates a vicious cycle of increased permeability
Toxic mediators release, and resulting in a further increase in gut permeability.
Facilitating the bacterial translocation.
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Bacterial Translocation
One day after burn:
• The overgrowth of Enterobacteriaceae + the increase of intestinal permeability allow the translocation of the bacteria to the mesenteric lymph nodes.
• This provides evidence that the gut may be a source of bacterial infections after burn injury, and a potential cause of sepsis.
PLoS ONE, 2015;10(7): doi:10.137110(7)
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REPERFUSION INJURY
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Summary
Source control is the most important
Patients do not die from the initial onslaught of
inflammation, but from later stages of immune
system suppression (“immunoparalysis”)
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