The Feasibility, Safety and Effectiveness of a Ketogenic Diet for Refractory Status Epilepticus in Adults in the Intensive Care Unit.

BACKGROUND

Status, refractory status and super refractory status epilepticus are common neurologic emergencies. The objective of this study is to investigate the feasibility, safety and effectiveness of a ketogenic diet (KD) for refractory status epilepticus (RSE) in adults in the intensive care unit (ICU).

METHODS

We performed a retrospective, single-center study of patients between ages 18 and 80 years with RSE treated with a KD treatment algorithm from November 2016 through April 2018. The primary outcome measure was urine ketone body production as a biomarker of feasibility. Secondary measures included resolution of RSE and KD-related side effects.

RESULTS

There were 11 adults who were diagnosed with RSE that were treated with the KD. The mean age was 48 years, and 45% (n = 5) of the patients were women. The patients were prescribed a median of three anti-seizure medications before initiating the KD. The median duration of RSE before initiation of the KD was 1 day. Treatment delays were the result of Propofol administration. 90.9% (n = 10) of patients achieved ketosis within a median of 1 day. RSE resolved in 72.7% (n = 8) of patients; however, 27.3% (n = 3) developed super-refractory status epilepticus. Side effects included metabolic acidosis, hypoglycemia and hyponatremia. One patient (20%) died.

CONCLUSIONS

KD may be feasible, safe and effective for treatment of RSE in the ICU. A randomized controlled trial (RCT) may be indicated to further test the safety and efficacy of KD.