Sequential Organ Failure Assessment Score

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Original Editor - Uchechukwu Chukwuemeka

Top Contributors - Uchechukwu Chukwuemeka, Lucinda hampton and Kim Jackson  

Introduction[edit | edit source]

The sequential organ failure assessment score (SOFA score), formerly termed the sepsis-related organ failure assessment score[1], is used to monitor a patient's condition while they are in an intensive care unit (ICU) in order to gauge how well their organs are functioning or how quickly they are failing[2][3]. Although many different scoring systems have been created, the Sequential Organ Failure Assessment (SOFA) score is now the most used in real-world applications[1] [3][4]. In contrast to other scores (e.g. Multiple Organ Dysfunction Score and Logistic Organ Dysfunction System ), which established models using statistical techniques, it was developed by consensus[3].

Objective[edit | edit source]

It is employed to keep an eye on a patient's condition while in an intensive care unit (ICU) to determine how well or rapidly their organs are failing, as well as evaluate the impact of new therapies on the progression of organ dysfunction/failure. This could be used to characterize patients at entry (and even serve as an entry criterion) or to evaluate treatment effects. The SOFA score does not distinguish between the impacts of acute organ dysfunction associated with critical illness and persistent organ failure occurring owing to underlying disease.[1]

Intended Population[edit | edit source]

The SOFA score is intended for critically ill patients and/or patients in the intensive care unit (ICU) to better understand the natural history of organ dysfunction/failure and the interrelationship between organ failure.

Method of Use[edit | edit source]

Six distinct scores, one for each of the respiratory, cardiovascular, hepatic, coagulation, renal, and neurological systems (central nervous system)make up the final result. Each organ system received a score ranging from 0 (normal) to 4 (most abnormal), with a minimum SOFA score of 0 and a maximum SOFA score of 24[1]. The table below summarizes the scoring of SOFA.

There is also the fast SOFA score (qSOFA), a shortened version of SOFA which aids medical professionals in determining the likelihood of morbidity and mortality as a result of sepsis using four variables as depicted in the table below
Quick SOFA
Is the patient in the ICU? Yes      No
Altered Mentation Yes      No
Respiratory rate (breaths per minute) (0 to 60)
Systolic blood pressure (mmHg) (0 to 300)

The SOFA Score[edit | edit source]

Score Central nervous system

Glasgow Coma Score

Respiratory system

PaO 2/FiO2, mmHg

Cardiovascular system

Mean arterial pressure(mmHg) or Vasopressors administered (μg/kg/min)

Coagulation

Platelets x 103/mm3

Hepatic function

Bilirubin, mg/dl(μmol/L)

Renal function

Creatinine, mg/dl(μmol/L) or Urine output (ml/day)

0 15 </=400 MAP >/=70 >/=150 <1.2 (<20) <1.2 (<110)
1 13-14 <400 MAP <70 <150 1.2- 1.9 (20-32) 1.2- 1.9 (110-170)
2 10-12 <300 Dopamine </=5 or dobutamine (any dose) <100 2.0- 5.9 (33-101) 2.0- 3.4 (171-299)
3 6-9 <200 with ventilatory support Dopamine > 5 or epinephrine </=0.1 or norepinephrine </=0.1 <50 6.0-11.9 (102-204) 3.5-4.9 (300 - 440)

or < 500

4 <6 <100 with ventilatory support Dopamine > 15 or epinephrine > 0.1 or norepinephrine > 0.1 <20 >12.0 (>204) >5.0 ( > 440)

or <200

Evidence[edit | edit source]

Resources[edit | edit source]

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References[edit | edit source]

  1. 1.0 1.1 1.2 1.3 Vincent JL, Moreno R, Takala J, Willatts S, De Mendonça A, Bruining H, et al. The SOFA (Sepsis-related Organ Failure Assessment) score describes organ dysfunction/failure. On behalf of the Working Group on Sepsis-Related Problems of the European Society of Intensive Care Medicine. Intensive Care Med. 1996;22(7):707-10. doi: 10.1007/BF01709751.
  2. Vincent JL, de Mendonça A, Cantraine F, Moreno R, Takala J, Suter PM, et al. Use of the SOFA score to assess the incidence of organ dysfunction/failure in intensive care units: results of a multicenter, prospective study. Working group on "sepsis-related problems" of the European Society of Intensive Care Medicine. Crit Care Med. 1998;26(11):1793-800. doi: 10.1097/00003246-199811000-00016.
  3. 3.0 3.1 3.2 Soo A, Zuege DJ, Fick GH, Niven DJ, Berthiaume LR, Stelfox HT, et al. Describing organ dysfunction in the intensive care unit: a cohort study of 20,000 patients. Crit Care. 2019;23(1):186. doi: 10.1186/s13054-019-2459-9.
  4. de Grooth HJ, Geenen IL, Girbes AR, Vincent J-L, Parienti J-J, Oudemans-van Straaten HM. SOFA and mortality endpoints in randomized controlled trials: a systematic review and meta-regression analysis. Crit Care 21, 38 (2017). https://doi.org/10.1186/s13054-017-1609-1
  5. Nursing Station. SOFA SCORE IN ICU... EASY WAY #nursing #nursingeducation #sofascore #intensivecareunit #mortality. Available from: http://www.youtube.com/watch?v=42EZ1dP0DIA [last accessed 29/12/2022]
  6. Ausmed. qSOFA Score (Quick Sepsis-Related Organ Failure Assessment) | Ausmed Explains... Available from: http://www.youtube.com/watch?v=pMfMt1L0oQA[last accessed 29/12/2022]

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