Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report

IntroductionThe management of new-onset refractory status epilepticus (NORSE) in pregnancy may be complicated by anti-seizure medication (ASM) polytherapy-associated teratogenicity. We aim to demonstrate the safety and efficacy of vagal nerve stimulation (VNS) in a pregnant patient presenting with N...

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Main Authors: Malaika Jindal, Laura Delaj, Joel Winston, Rishu Goel, Sadia Bhatti, Milena Angelova-Chee, Richard Selway, Laura Mantoan Ritter
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1183080/full
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author Malaika Jindal
Laura Delaj
Joel Winston
Rishu Goel
Sadia Bhatti
Milena Angelova-Chee
Richard Selway
Laura Mantoan Ritter
author_facet Malaika Jindal
Laura Delaj
Joel Winston
Rishu Goel
Sadia Bhatti
Milena Angelova-Chee
Richard Selway
Laura Mantoan Ritter
author_sort Malaika Jindal
collection DOAJ
description IntroductionThe management of new-onset refractory status epilepticus (NORSE) in pregnancy may be complicated by anti-seizure medication (ASM) polytherapy-associated teratogenicity. We aim to demonstrate the safety and efficacy of vagal nerve stimulation (VNS) in a pregnant patient presenting with NORSE.Case descriptionA 30-year old female, at 5-weeks' gestation presented with drug-refractory myoclonic status epilepticus, responsive only to high levels of anesthetic agents. The severity of seizures did not allow extubation, and the patient remained ventilated and sedated. VNS was implanted 26 days after seizure onset. The immediate post-operative output was 0.25 mA, which was rapidly titrated up to 0.5 mA the next morning, and to 0.75 mA that afternoon. This was further increased to 1.0 mA on 3rd day post-operation, and to 1.25 mA 7 days post-op. Myoclonic jerks diminished significantly 7 days post-op, allowing extubation. Twenty days after VNS implantation, no myoclonic jerks were observed. There was also a notable neurological improvement including increased alertness and mobility, and ability to obey commands. Drug overdose was subsequently found to be the most likely etiology of her NORSE. An early pregnancy assessment 17 days after VNS implantation showed a normally sited pregnancy, normal fetal heart activity and crown-rump length. The patient remained seizure free, gained functional independence and delivered a premature but otherwise healthy baby at 33 weeks' gestation.ConclusionNORSE is challenging to manage, further compounded in pregnancy due to the teratogenicity of ASMs and ASM polytherapy. This is the first case-study to report the safe implantation and use of VNS during the first trimester of pregnancy for the management of NORSE.
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spelling doaj.art-2dbe1bff28f7456ca6b62aaedfc509b12023-05-15T05:06:47ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-05-011410.3389/fneur.2023.11830801183080Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case reportMalaika Jindal0Laura Delaj1Joel Winston2Rishu Goel3Sadia Bhatti4Milena Angelova-Chee5Richard Selway6Laura Mantoan Ritter7Faculty of Life Sciences and Medicine, King's College London, London, United KingdomDepartment of Neurology, East Kent Hospitals University National Health Service (NHS) Foundation Trust, Kent, United KingdomDepartment of Neurophsyiology, King's College Hospital, London, United KingdomDepartment of Obstetrics and Gynaecology, East Kent Hospitals University National Health Service (NHS) Foundation Trust, Kent, United KingdomDepartment of Obstetrics, King's College Hospital, London, United KingdomIntensive Care Unit, King's College Hospital, London, United KingdomDepartment of Neurosurgery, King's College Hospital, London, United KingdomDepartment of Neurology, King's College Hospital, London, United KingdomIntroductionThe management of new-onset refractory status epilepticus (NORSE) in pregnancy may be complicated by anti-seizure medication (ASM) polytherapy-associated teratogenicity. We aim to demonstrate the safety and efficacy of vagal nerve stimulation (VNS) in a pregnant patient presenting with NORSE.Case descriptionA 30-year old female, at 5-weeks' gestation presented with drug-refractory myoclonic status epilepticus, responsive only to high levels of anesthetic agents. The severity of seizures did not allow extubation, and the patient remained ventilated and sedated. VNS was implanted 26 days after seizure onset. The immediate post-operative output was 0.25 mA, which was rapidly titrated up to 0.5 mA the next morning, and to 0.75 mA that afternoon. This was further increased to 1.0 mA on 3rd day post-operation, and to 1.25 mA 7 days post-op. Myoclonic jerks diminished significantly 7 days post-op, allowing extubation. Twenty days after VNS implantation, no myoclonic jerks were observed. There was also a notable neurological improvement including increased alertness and mobility, and ability to obey commands. Drug overdose was subsequently found to be the most likely etiology of her NORSE. An early pregnancy assessment 17 days after VNS implantation showed a normally sited pregnancy, normal fetal heart activity and crown-rump length. The patient remained seizure free, gained functional independence and delivered a premature but otherwise healthy baby at 33 weeks' gestation.ConclusionNORSE is challenging to manage, further compounded in pregnancy due to the teratogenicity of ASMs and ASM polytherapy. This is the first case-study to report the safe implantation and use of VNS during the first trimester of pregnancy for the management of NORSE.https://www.frontiersin.org/articles/10.3389/fneur.2023.1183080/fullNORSEVNSpregnancyoutcomesstatus epilepticus
spellingShingle Malaika Jindal
Laura Delaj
Joel Winston
Rishu Goel
Sadia Bhatti
Milena Angelova-Chee
Richard Selway
Laura Mantoan Ritter
Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report
Frontiers in Neurology
NORSE
VNS
pregnancy
outcomes
status epilepticus
title Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report
title_full Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report
title_fullStr Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report
title_full_unstemmed Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report
title_short Safe and effective implantation and use of vagal nerve stimulation in new-onset refractory status epilepticus in early pregnancy: a case report
title_sort safe and effective implantation and use of vagal nerve stimulation in new onset refractory status epilepticus in early pregnancy a case report
topic NORSE
VNS
pregnancy
outcomes
status epilepticus
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1183080/full
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