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Septic shock: A quiet evolution in EMS management

Lactate evaluation may the next EMS vital sign

There were several trends presenting at this year’s EMS Today in DC. One of these is a quiet evolution in the assessment, identification and management of the septic patient.

There are about a million cases of sepsis in the United States each year, according to T. Ryan Mayfield, MS, EMT-P, Manager of the Center for EMS Quality, Integration and Research, Centura South Denver EMS. Of these, 215,000 die.

When compared to the approximate 133,000 deaths that occur from acute myocardial infarction, it becomes apparent that EMS must become involved in the acute management of sepsis.

During the session, Mayfield described recent research that he conducted in the Denver metro region. Specifically trained EMS providers, working with specific assessment and management protocols, began early treatment with large amounts of saline.

The crews also alerted the receiving hospital early. As a result, when compared to the patients who were not managed early, the death rate from sepsis fell from 33 percent, down to 14 percent. Hospital stays dropped by one day, and intubation rates were reduced by 25 percent.

One of the tests that the medics used was a lactate monitor. Similar in shape and use to a glucometer, it measures the level of lactate in a drop of capillary bed. Lactate is a by product of metabolism; if hypoperfusion exists, anaerobic conditions results and lactate levels rise.

Patients with potential sepsis were evaluated using SIRS criteria, which included:

Temp >38C (100.4 F) or <36C

HR >90

RR > 20 bpm or mechanically ventilated

Lactate level > 4 mmol/L

Note that the blood pressure may not necessarily low. A patient can be significantly hypoperfusing and still have a “normal” blood pressure, causing a condition known as “cryptic shock”.

Patients experiencing this condition have a significantly higher chance of dying if not identified and treated early.

This and other similar research is pointing to another exciting area of development that prehospital providers can provide definitive treatment prior to hospital admission. Look for more information on this in the future.

Art Hsieh, MA, NRP teaches in Northern California at the Public Safety Training Center, Santa Rosa Junior College in the Emergency Care Program. An EMS provider since 1982, Art has served as a line medic, supervisor and chief officer in the private, third service and fire-based EMS. He has directed both primary and EMS continuing education programs. Art is a textbook writer, author of “EMT Exam for Dummies,” has presented at conferences nationwide and continues to provide direct patient care regularly. Art is a member of the EMS1 Editorial Advisory Board.