The 2012 SSC guidelines recommend norepinephrine (NE) alone as the first-line vasopressor in sepsis and no longer include dopamine in this category. In fact, the use of dopamine in septic shock has been downgraded and should only to be considered in patients at low risk of tachyarrhythmia and in bradycardia syndromes. Epinephrine is now favored as the second agent or as a substitute to NE. Phenylephrine is no longer recommended unless there is contraindication to using NE, the patient has a high cardiac output, or it is used as a salvage therapy. Vasopressin is considered only an adjunctive agent to NE and should never be used alone.
Recommendations regarding corticosteroid therapy remain largely unchanged from 2008 SCC guidelines, which only support their use when adequate volume resuscitation and vasopressor support has failed to achieve hemodynamic stability. Glucose control is recommended but at the new target of achieving a level of <180 mg/dL, up from a previous target of <150 mg/dL.
Notably, recombinant human activated protein C was completely omitted from the 2012 guidelines, prompted by the voluntary removal of the drug by the manufacturer after failing to show benefit. Use of selenium and intravenous immunoglobulin received comment, but there is insufficient evidence supporting their benefit at the current time. They also encourage clinicians to incorporate goals of care and end-of-life issues into the treatment plan and discuss this with patients and/or surrogates early in treatment.
Guideline Analysis
Prior versions of the SSC guidelines have been met with a fair amount of skepticism.8 Much of the criticism is based on the industry sponsorship of the 2004 version, the lack of transparency regarding potential conflicts of interest of the committee members, and that the bundle recommendations largely were based on only one trial and, therefore, not evidenced-based.9 The 2012 SSC committee seems to have addressed these issues as the guidelines are free of commercial sponsorship in the 2008 and current versions. They also rigorously applied the GRADE system to methodically assess the strength and quality of supporting evidence. The result is a set of guidelines that are partially evidence-based and partially based on expert opinion, but this is clearly delineated in these newest guidelines. This provides clinicians with a clear and concise recommended approach to the patient with severe sepsis and septic shock.
The guidelines continue to place a heavy emphasis on three- and six-hour treatment bundles, and with the assistance of the Institute for Health Care Improvement efforts to improve implementation of the bundle, they are already are widespread with an eye to expand across the country. The components of the three-hour treatment bundle (lactate measurement, blood cultures prior to initiation of antibiotics, broad-spectrum antibiotics, and IV crystalloids for hypotension or for a lactate of >4 mmol/L) recommended by the SSC have not changed substantially since 2008. The one exception is the rate at which IV crystalloid should be administered of 30 mL/kg, which is up from 20 mL/kg. Only time will tell how this change will affect bundle compliance or reduce mortality. But this does pose a significant challenge to quality and performance improvement groups accustomed to tracking compliance with IV fluid administration under the old standard and the educational campaigns associated with a change.
It appears that the SSC is here to stay, now in its third iteration. The lasting legacy of the SSC guidelines might not rest with the content of the guidelines, per se, but in raising awareness of severe sepsis and septic shock in a way that had not previously been considered.
HM Takeaways
The revised 2012 SCC updates bring some new tools to the clinician for early recognition and effective management of patients with sepsis. The push for institutions to adopt screening and performance measures reflects a general trend in health care to create high-performance systems. As these new guidelines are put into practice, there are several changes that might require augmentation of quality metrics being tracked at institutions nationally and internationally.