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Encyclopedia > Septicaemia

Sepsis (in Greek Σήψις) is a serious medical condition caused by a severe systemic infection leading to a systemic inflammatory response. The more critical subsets of sepsis include severe sepsis (sepsis with organ dysfunction) and septic shock (sepsis with refractory arterial hypotension).


The systemic inflammatory response syndrome leads to widespread activation of inflammation and coagulation pathways. This may progress to dysfunction of the circulatory system and, even under optimal treatment, multiple organ dysfunction syndrome and eventually death.


Sepsis is more common and also more dangerous in elderly, immunocompromised, and critically ill patients. It occurs in 2% of all hospitalizations and accounts for as much as 25% of intensive care unit (ICU) bed utilization. It is a major cause of death in intensive care units worldwide, with mortality rates that range from 20% for sepsis to 40% for severe sepsis to >60% for septic shock. In the United States, sepsis is the leading cause of death in non-coronary ICU patients, and the tenth most common cause of death overall according to 2000 data from the Centers for Disease Control (Martin et al 2003).


A problem in the adequate management of septic patients has been the delay in administering the right treatment after sepsis has been recognized. In 2003, a large multidisciplinary meeting set guidelines for managing severe sepsis (Dellinger et al 2004), with the aim of improving outcomes in sepsis.


Treatment

The therapy of sepsis rests on antibiotics, surgical drainage of infected fluid collections, fluid replacement and appropriate support for organ dysfunction. This may include hemodialysis in kidney failure, mechanical ventilation in pulmonary dysfunction, transfusion of blood plasma, platelets and coagulation factors to stabilize blood coagulation, and drug and fluid therapy for circulatory failure. Ensuring adequate nutrition, if necessary by parenteral nutrition, is important during prolonged illness.


Most therapies aimed at the inflammatory process itself have failed to improve outcome. However, drotrecogin (activated protein C, one of the coagulation factors) has been shown to decrease mortality from about 31% to about 25% in severe sepsis (Bernard et al 2001). Low dose cortisol treatment has shown promise for septic shock patients with relative adrenal insufficiency.


Related conditions

References

  • Bernard GR, Vincent JL, Laterre PF, LaRosa SP, Dhainaut JF, Lopez-Rodriguez A, Steingrub JS, Garber GE, Helterbrand JD, Ely EW, Fisher CJ Jr; Recombinant human protein C Worldwide Evaluation in Severe Sepsis (PROWESS) study group. Efficacy and safety of recombinant human activated protein C for severe sepsis. N Engl J Med 2001;344:699-709. PMID 11236773
  • Dellinger RP, Carlet JM, Masur H, Gerlach H, Calandra T, Cohen J, Gea-Banacloche J, Keh D, Marshall JC, Parker MM, Ramsay G, Zimmerman JL, Vincent JL, Levy MM; Surviving Sepsis Campaign Management Guidelines Committee. Surviving Sepsis Campaign guidelines for management of severe sepsis and septic shock. Crit Care Med 2004;32:858-73. PMID 15090974.
  • Martin GS, Mannino DM, Eaton S, Moss M. The epidemiology of sepsis in the United States from 1979 through 2000. N Engl J Med 2003;348:1546-54. PMID 12700374

  Results from FactBites:
 
BBC NEWS | Health | Medical notes | Meningitis and septicaemia (817 words)
Septicaemia is the blood poisoning form of the disease.
Septicaemia is a form of blood poisoning which may be caused by the same bugs that cause meningitis.
Septicaemia is very serious and must be treated straight away.
Septicaemia (0 words)
Septicaemia is a potentially life-threatening infection in which large amounts of bacteria are present in the blood.
Septicaemia requires admission to an acute general hospital and may necessitate admission to an intensive care unit.
Septicaemia is a rapidly progressive condition and the sufferer usually looks very ill even to the non-medical person.
  More results at FactBites »

 
 

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