Neuromodulation With Percutaneous Electrical Nerve Field Stimulation for Adults With COVID-19

NCT ID: NCT04514627

Last Updated: 2024-06-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

55 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-07-13

Study Completion Date

2022-03-22

Brief Summary

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COVID-19 is a disease caused by the virus, SARS-CoV-2. Patients with this viral infection are at risk for developing pneumonia and acute respiratory distress syndrome (ARDS). Approximately 20% to 30% of hospitalized patients with COVID-19 and pneumonia require intensive care for respiratory support. Clinically, ARDS presents with severe hypoxemia evolving over several days to a week in combination with bilateral pulmonary infiltrates on chest X-ray. Widespread alveolar epithelial cell and pulmonary capillary endothelial injury can lead to severe impairment in gas exchange. In one report of 1,099 patients hospitalized with COVID-19, ARDS occurred in 15.6% of patients with severe pneumonia. In a smaller case series of 138 hospitalized patients, ARDS occurred in 19.6% of patients and in 61.1% of patients admitted to an intensive care unit (ICU).

To date, no effective treatment has been established to treat COVID-19 or to prevent progression of ARDS. It is thought that a heightened immune response with an unbalanced release of inflammatory mediators in the airway is a major cause of morbidity and mortality associated with the disease. It is therefore reasonable to postulate that improved outcomes may be obtained in patients with a balanced immune response with adequate viral control and appropriate counter-regulatory immune responses whereas a poor outcome may be expected in patients with inadequate viral control or a heightened immune response or what is referred to as a "cytokine storm". Thus, modulating the pulmonary immune response without suppressing the immune system would be a viable strategy for patients with COVID-19. The current literature supports the role of neuromodulation, particularly vagal nerve stimulation (VNS), in modulating the immune response. Modulating the pro-inflammatory pathway through VNS has been demonstrated to decrease inflammatory mediators and improve outcomes in several animal models and in humans.

Percutaneous electrical nerve field stimulation (PENFS) provides a novel, non-invasive method of VNS through a non-implantable device applied to the external ear. Already, the FDA has cleared this technology for reducing symptoms of opioid withdrawal in patients with opioid use disorder. Symptoms of opioid withdrawal can be decreased by approximately 90% after 1 hour of stimulation. Similarly, the IB-Stim device has been shown to improve symptom in children with abdominal-pain-related functional GI disorders and recently received market approval by the FDA for that indication. Unpublished studies have demonstrated marked decrease in inflammation with PENFS compared to sham stimulation in a model of TNBS colitis. While the efficacy of PENFS in modulating the progression of pulmonary disease in patients with COVID-19 is unknown, several proposed mechanisms for regulation of the immune response through VNS have already been demonstrated. We propose to perform an open label, randomized study to evaluate the efficacy of PENFS for the treatment of respiratory symptoms in patients with COVID-19.

Detailed Description

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Conditions

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COVID-19

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Active percutaneous neurostimulation

Subject randomized to 5 days of active vs sham neurostimulation therapy during hospitalization.

Group Type ACTIVE_COMPARATOR

Auricular percutaneous neurostimulation

Intervention Type DEVICE

The BRIDGE/PENFS device manufactured by Key Electronics, consists of a battery activated generator and wire harness that connects to the generator. Four leads are also attached to the generator, each with a sterile 2 mm, titanium needle. The BRIDGE device settings are standardized and deliver 3.2 volts with alternating frequencies (1 ms pulses of 1 Hz and 10 Hz) every 2 s. This stimulation targets central pain pathways through branches of cranial nerves V, VII, IX, and X, which innervate the external ear. The PENFS device generator has a battery life of 5 days and delivers almost continuous stimulations throughout the 120 hours.

Sham percutaneous neurostimulation

Each subject randomized to 5 days of active vs sham neurostimulation therapy during hospitalization.

Group Type SHAM_COMPARATOR

Auricular percutaneous neurostimulation

Intervention Type DEVICE

The BRIDGE/PENFS device manufactured by Key Electronics, consists of a battery activated generator and wire harness that connects to the generator. Four leads are also attached to the generator, each with a sterile 2 mm, titanium needle. The BRIDGE device settings are standardized and deliver 3.2 volts with alternating frequencies (1 ms pulses of 1 Hz and 10 Hz) every 2 s. This stimulation targets central pain pathways through branches of cranial nerves V, VII, IX, and X, which innervate the external ear. The PENFS device generator has a battery life of 5 days and delivers almost continuous stimulations throughout the 120 hours.

Interventions

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Auricular percutaneous neurostimulation

The BRIDGE/PENFS device manufactured by Key Electronics, consists of a battery activated generator and wire harness that connects to the generator. Four leads are also attached to the generator, each with a sterile 2 mm, titanium needle. The BRIDGE device settings are standardized and deliver 3.2 volts with alternating frequencies (1 ms pulses of 1 Hz and 10 Hz) every 2 s. This stimulation targets central pain pathways through branches of cranial nerves V, VII, IX, and X, which innervate the external ear. The PENFS device generator has a battery life of 5 days and delivers almost continuous stimulations throughout the 120 hours.

Intervention Type DEVICE

Other Intervention Names

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Neuro-Stim System (NSS)-2 BRIDGE

Eligibility Criteria

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Inclusion Criteria

* Age ≥18 years at time of signing Informed Consent Form
* Hospitalized with COVID-19 pneumonia confirmed per WHO criteria (including a positive PCR of any specimen, e.g., respiratory, blood, urine, stool, other bodily fluid) and per the investigator, the respiratory compromise is most likely due to COVID-19
* Patient complaint of dyspnea at the time of presentation to ED or hospital
* Patient on room air or oxygen supplementation of no greater than 4 liters at rest to maintaining pulse oximetry of 92% or greater. This can include oxygen supplementation by any modality (BIPAP, CPAP, HFNC, NRB, NC), with the exception of mechanical ventilation or ECLS.
* Signed Informed Consent Form by any patient capable of giving consent, or, when the patient is not capable of giving consent, by his or her legal/authorized representative
* Ability to comply with the study protocol in the investigator's judgment.

Exclusion Criteria

* Patients who cannot provide informed consent
* History of surgery involving CN V, VII, IX, or X.
* Patient on chronic renal dialysis
* Patients with history of solid organ transplant
* Patients with underlying seizures disorder
* Patients with a cardiac pacemaker
* Patients with any implanted electrical device
* Patients with dermatologic conditions affecting the ear, face, or neck region (i.e. psoriasis), or with cuts or abrasions to the external ear that would interfere with needle placement
* Patients with hemophilia or other bleeding disorders
* Patients who are pregnant or breastfeeding
* Patients with active TB infection
* Patient already on mechanical ventilation or ECLS
* Suspected active bacterial, fungal, viral, or other infection (besides COVID-19)
* In the opinion of the investigator, progression to mechanical ventilation, ECLS or death is imminent and inevitable within the next 24 hours, irrespective of the provision of treatments
* Participating in other drug clinical trials
* ALT or AST \> 5 x ULN detected within 24 hours at screening or at baseline (according to local laboratory reference ranges)
* ANC \< 500/µL at screening and baseline (according to local laboratory reference ranges)
* Platelet count \< 50,000/µL at screening and baseline (according to local laboratory reference ranges)
* Any serious medical condition or abnormality of clinical laboratory tests that, in the investigator's judgment, precludes the patient's safe participation in and completion of the study
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Olive View-UCLA Education & Research Institute

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Nader Kamangar, M.D.

Role: PRINCIPAL_INVESTIGATOR

Olive View-UCLA Education & Research Institute

Locations

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Olive View-UCLA Medical Center

Sylmar, California, United States

Site Status

Countries

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United States

References

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Chen N, Zhou M, Dong X, Qu J, Gong F, Han Y, Qiu Y, Wang J, Liu Y, Wei Y, Xia J, Yu T, Zhang X, Zhang L. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. Lancet. 2020 Feb 15;395(10223):507-513. doi: 10.1016/S0140-6736(20)30211-7. Epub 2020 Jan 30.

Reference Type BACKGROUND
PMID: 32007143 (View on PubMed)

Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, Zhang L, Fan G, Xu J, Gu X, Cheng Z, Yu T, Xia J, Wei Y, Wu W, Xie X, Yin W, Li H, Liu M, Xiao Y, Gao H, Guo L, Xie J, Wang G, Jiang R, Gao Z, Jin Q, Wang J, Cao B. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet. 2020 Feb 15;395(10223):497-506. doi: 10.1016/S0140-6736(20)30183-5. Epub 2020 Jan 24.

Reference Type BACKGROUND
PMID: 31986264 (View on PubMed)

Guan WJ, Ni ZY, Hu Y, Liang WH, Ou CQ, He JX, Liu L, Shan H, Lei CL, Hui DSC, Du B, Li LJ, Zeng G, Yuen KY, Chen RC, Tang CL, Wang T, Chen PY, Xiang J, Li SY, Wang JL, Liang ZJ, Peng YX, Wei L, Liu Y, Hu YH, Peng P, Wang JM, Liu JY, Chen Z, Li G, Zheng ZJ, Qiu SQ, Luo J, Ye CJ, Zhu SY, Zhong NS; China Medical Treatment Expert Group for Covid-19. Clinical Characteristics of Coronavirus Disease 2019 in China. N Engl J Med. 2020 Apr 30;382(18):1708-1720. doi: 10.1056/NEJMoa2002032. Epub 2020 Feb 28.

Reference Type BACKGROUND
PMID: 32109013 (View on PubMed)

Johnson RL, Wilson CG. A review of vagus nerve stimulation as a therapeutic intervention. J Inflamm Res. 2018 May 16;11:203-213. doi: 10.2147/JIR.S163248. eCollection 2018.

Reference Type BACKGROUND
PMID: 29844694 (View on PubMed)

Miranda A, Taca A. Neuromodulation with percutaneous electrical nerve field stimulation is associated with reduction in signs and symptoms of opioid withdrawal: a multisite, retrospective assessment. Am J Drug Alcohol Abuse. 2018;44(1):56-63. doi: 10.1080/00952990.2017.1295459. Epub 2017 Mar 16.

Reference Type BACKGROUND
PMID: 28301217 (View on PubMed)

Kovacic K, Hainsworth K, Sood M, Chelimsky G, Unteutsch R, Nugent M, Simpson P, Miranda A. Neurostimulation for abdominal pain-related functional gastrointestinal disorders in adolescents: a randomised, double-blind, sham-controlled trial. Lancet Gastroenterol Hepatol. 2017 Oct;2(10):727-737. doi: 10.1016/S2468-1253(17)30253-4. Epub 2017 Aug 18.

Reference Type BACKGROUND
PMID: 28826627 (View on PubMed)

Wu Z, McGoogan JM. Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China: Summary of a Report of 72 314 Cases From the Chinese Center for Disease Control and Prevention. JAMA. 2020 Apr 7;323(13):1239-1242. doi: 10.1001/jama.2020.2648. No abstract available.

Reference Type BACKGROUND
PMID: 32091533 (View on PubMed)

Cheung CY, Poon LL, Ng IH, Luk W, Sia SF, Wu MH, Chan KH, Yuen KY, Gordon S, Guan Y, Peiris JS. Cytokine responses in severe acute respiratory syndrome coronavirus-infected macrophages in vitro: possible relevance to pathogenesis. J Virol. 2005 Jun;79(12):7819-26. doi: 10.1128/JVI.79.12.7819-7826.2005.

Reference Type BACKGROUND
PMID: 15919935 (View on PubMed)

Law HK, Cheung CY, Ng HY, Sia SF, Chan YO, Luk W, Nicholls JM, Peiris JS, Lau YL. Chemokine up-regulation in SARS-coronavirus-infected, monocyte-derived human dendritic cells. Blood. 2005 Oct 1;106(7):2366-74. doi: 10.1182/blood-2004-10-4166. Epub 2005 Apr 28.

Reference Type BACKGROUND
PMID: 15860669 (View on PubMed)

Chu H, Zhou J, Wong BH, Li C, Chan JF, Cheng ZS, Yang D, Wang D, Lee AC, Li C, Yeung ML, Cai JP, Chan IH, Ho WK, To KK, Zheng BJ, Yao Y, Qin C, Yuen KY. Middle East Respiratory Syndrome Coronavirus Efficiently Infects Human Primary T Lymphocytes and Activates the Extrinsic and Intrinsic Apoptosis Pathways. J Infect Dis. 2016 Mar 15;213(6):904-14. doi: 10.1093/infdis/jiv380. Epub 2015 Jul 22.

Reference Type BACKGROUND
PMID: 26203058 (View on PubMed)

Channappanavar R, Fehr AR, Vijay R, Mack M, Zhao J, Meyerholz DK, Perlman S. Dysregulated Type I Interferon and Inflammatory Monocyte-Macrophage Responses Cause Lethal Pneumonia in SARS-CoV-Infected Mice. Cell Host Microbe. 2016 Feb 10;19(2):181-93. doi: 10.1016/j.chom.2016.01.007.

Reference Type BACKGROUND
PMID: 26867177 (View on PubMed)

Smits SL, de Lang A, van den Brand JM, Leijten LM, van IJcken WF, Eijkemans MJ, van Amerongen G, Kuiken T, Andeweg AC, Osterhaus AD, Haagmans BL. Exacerbated innate host response to SARS-CoV in aged non-human primates. PLoS Pathog. 2010 Feb 5;6(2):e1000756. doi: 10.1371/journal.ppat.1000756.

Reference Type BACKGROUND
PMID: 20140198 (View on PubMed)

Pawelec G, Adibzadeh M, Pohla H, Schaudt K. Immunosenescence: ageing of the immune system. Immunol Today. 1995 Sep;16(9):420-2. doi: 10.1016/0167-5699(95)80017-4. No abstract available.

Reference Type BACKGROUND
PMID: 7546204 (View on PubMed)

Kudoh A, Katagai H, Takazawa T, Matsuki A. Plasma proinflammatory cytokine response to surgical stress in elderly patients. Cytokine. 2001 Sep 7;15(5):270-3. doi: 10.1006/cyto.2001.0927.

Reference Type BACKGROUND
PMID: 11594792 (View on PubMed)

Liu T, Zhang J, Yang Y, Ma H, Li Z, Zhang J, Cheng J, Zhang X, Zhao Y, Xia Z, Zhang L, Wu G, Yi J. The role of interleukin-6 in monitoring severe case of coronavirus disease 2019. EMBO Mol Med. 2020 Jul 7;12(7):e12421. doi: 10.15252/emmm.202012421. Epub 2020 Jun 5.

Reference Type BACKGROUND
PMID: 32428990 (View on PubMed)

Young BE, Ong SWX, Kalimuddin S, Low JG, Tan SY, Loh J, Ng OT, Marimuthu K, Ang LW, Mak TM, Lau SK, Anderson DE, Chan KS, Tan TY, Ng TY, Cui L, Said Z, Kurupatham L, Chen MI, Chan M, Vasoo S, Wang LF, Tan BH, Lin RTP, Lee VJM, Leo YS, Lye DC; Singapore 2019 Novel Coronavirus Outbreak Research Team. Epidemiologic Features and Clinical Course of Patients Infected With SARS-CoV-2 in Singapore. JAMA. 2020 Apr 21;323(15):1488-1494. doi: 10.1001/jama.2020.3204.

Reference Type BACKGROUND
PMID: 32125362 (View on PubMed)

Wu H, Li L, Su X. Vagus nerve through alpha7 nAChR modulates lung infection and inflammation: models, cells, and signals. Biomed Res Int. 2014;2014:283525. doi: 10.1155/2014/283525. Epub 2014 Jul 20.

Reference Type BACKGROUND
PMID: 25136575 (View on PubMed)

Berthoud HR, Neuhuber WL. Functional and chemical anatomy of the afferent vagal system. Auton Neurosci. 2000 Dec 20;85(1-3):1-17. doi: 10.1016/S1566-0702(00)00215-0.

Reference Type BACKGROUND
PMID: 11189015 (View on PubMed)

Pavlov VA, Wang H, Czura CJ, Friedman SG, Tracey KJ. The cholinergic anti-inflammatory pathway: a missing link in neuroimmunomodulation. Mol Med. 2003 May-Aug;9(5-8):125-34.

Reference Type BACKGROUND
PMID: 14571320 (View on PubMed)

Borovikova LV, Ivanova S, Zhang M, Yang H, Botchkina GI, Watkins LR, Wang H, Abumrad N, Eaton JW, Tracey KJ. Vagus nerve stimulation attenuates the systemic inflammatory response to endotoxin. Nature. 2000 May 25;405(6785):458-62. doi: 10.1038/35013070.

Reference Type BACKGROUND
PMID: 10839541 (View on PubMed)

Wang H, Yu M, Ochani M, Amella CA, Tanovic M, Susarla S, Li JH, Wang H, Yang H, Ulloa L, Al-Abed Y, Czura CJ, Tracey KJ. Nicotinic acetylcholine receptor alpha7 subunit is an essential regulator of inflammation. Nature. 2003 Jan 23;421(6921):384-8. doi: 10.1038/nature01339. Epub 2002 Dec 22.

Reference Type BACKGROUND
PMID: 12508119 (View on PubMed)

Tracey KJ. Physiology and immunology of the cholinergic antiinflammatory pathway. J Clin Invest. 2007 Feb;117(2):289-96. doi: 10.1172/JCI30555.

Reference Type BACKGROUND
PMID: 17273548 (View on PubMed)

Yang X, Zhao C, Gao Z, Su X. A novel regulator of lung inflammation and immunity: pulmonary parasympathetic inflammatory reflex. QJM. 2014 Oct;107(10):789-92. doi: 10.1093/qjmed/hcu005. Epub 2014 Jan 18.

Reference Type BACKGROUND
PMID: 24440925 (View on PubMed)

Fox B, Bull TB, Guz A. Innervation of alveolar walls in the human lung: an electron microscopic study. J Anat. 1980 Dec;131(Pt 4):683-92.

Reference Type BACKGROUND
PMID: 7216905 (View on PubMed)

Hertweck MS, Hung KS. Ultrastructural evidence for the innervation of human pulmonary alveoli. Experientia. 1980 Jan 15;36(1):112-3. doi: 10.1007/BF02004006.

Reference Type BACKGROUND
PMID: 7358113 (View on PubMed)

Bernik TR, Friedman SG, Ochani M, DiRaimo R, Susarla S, Czura CJ, Tracey KJ. Cholinergic antiinflammatory pathway inhibition of tumor necrosis factor during ischemia reperfusion. J Vasc Surg. 2002 Dec;36(6):1231-6. doi: 10.1067/mva.2002.129643.

Reference Type BACKGROUND
PMID: 12469056 (View on PubMed)

Guarini S, Altavilla D, Cainazzo MM, Giuliani D, Bigiani A, Marini H, Squadrito G, Minutoli L, Bertolini A, Marini R, Adamo EB, Venuti FS, Squadrito F. Efferent vagal fibre stimulation blunts nuclear factor-kappaB activation and protects against hypovolemic hemorrhagic shock. Circulation. 2003 Mar 4;107(8):1189-94. doi: 10.1161/01.cir.0000050627.90734.ed.

Reference Type BACKGROUND
PMID: 12615800 (View on PubMed)

Huston JM, Ochani M, Rosas-Ballina M, Liao H, Ochani K, Pavlov VA, Gallowitsch-Puerta M, Ashok M, Czura CJ, Foxwell B, Tracey KJ, Ulloa L. Splenectomy inactivates the cholinergic antiinflammatory pathway during lethal endotoxemia and polymicrobial sepsis. J Exp Med. 2006 Jul 10;203(7):1623-8. doi: 10.1084/jem.20052362. Epub 2006 Jun 19.

Reference Type BACKGROUND
PMID: 16785311 (View on PubMed)

Krzyzaniak MJ, Peterson CY, Cheadle G, Loomis W, Wolf P, Kennedy V, Putnam JG, Bansal V, Eliceiri B, Baird A, Coimbra R. Efferent vagal nerve stimulation attenuates acute lung injury following burn: The importance of the gut-lung axis. Surgery. 2011 Sep;150(3):379-89. doi: 10.1016/j.surg.2011.06.008. Epub 2011 Jul 23.

Reference Type BACKGROUND
PMID: 21783215 (View on PubMed)

dos Santos CC, Shan Y, Akram A, Slutsky AS, Haitsma JJ. Neuroimmune regulation of ventilator-induced lung injury. Am J Respir Crit Care Med. 2011 Feb 15;183(4):471-82. doi: 10.1164/rccm.201002-0314OC. Epub 2010 Sep 24.

Reference Type BACKGROUND
PMID: 20870758 (View on PubMed)

Levy G, Fishman JE, Xu DZ, Dong W, Palange D, Vida G, Mohr A, Ulloa L, Deitch EA. Vagal nerve stimulation modulates gut injury and lung permeability in trauma-hemorrhagic shock. J Trauma Acute Care Surg. 2012 Aug;73(2):338-42; discussion 342. doi: 10.1097/TA.0b013e31825debd3.

Reference Type BACKGROUND
PMID: 22846937 (View on PubMed)

Ellrich J. Transcutaneous Auricular Vagus Nerve Stimulation. J Clin Neurophysiol. 2019 Nov;36(6):437-442. doi: 10.1097/WNP.0000000000000576.

Reference Type BACKGROUND
PMID: 31688327 (View on PubMed)

Zhao YX, He W, Jing XH, Liu JL, Rong PJ, Ben H, Liu K, Zhu B. Transcutaneous auricular vagus nerve stimulation protects endotoxemic rat from lipopolysaccharide-induced inflammation. Evid Based Complement Alternat Med. 2012;2012:627023. doi: 10.1155/2012/627023. Epub 2012 Dec 29.

Reference Type BACKGROUND
PMID: 23346208 (View on PubMed)

Sun P, Zhou K, Wang S, Li P, Chen S, Lin G, Zhao Y, Wang T. Involvement of MAPK/NF-kappaB signaling in the activation of the cholinergic anti-inflammatory pathway in experimental colitis by chronic vagus nerve stimulation. PLoS One. 2013 Aug 2;8(8):e69424. doi: 10.1371/journal.pone.0069424. Print 2013.

Reference Type BACKGROUND
PMID: 23936328 (View on PubMed)

Babygirija R, Sood M, Kannampalli P, Sengupta JN, Miranda A. Percutaneous electrical nerve field stimulation modulates central pain pathways and attenuates post-inflammatory visceral and somatic hyperalgesia in rats. Neuroscience. 2017 Jul 25;356:11-21. doi: 10.1016/j.neuroscience.2017.05.012. Epub 2017 May 17.

Reference Type BACKGROUND
PMID: 28526575 (View on PubMed)

Roberts A, Sithole A, Sedghi M, Walker CA, Quinn TM. Minimal adverse effects profile following implantation of periauricular percutaneous electrical nerve field stimulators: a retrospective cohort study. Med Devices (Auckl). 2016 Nov 3;9:389-393. doi: 10.2147/MDER.S107426. eCollection 2016.

Reference Type BACKGROUND
PMID: 27843360 (View on PubMed)

Vaira LA, Salzano G, Deiana G, De Riu G. Anosmia and Ageusia: Common Findings in COVID-19 Patients. Laryngoscope. 2020 Jul;130(7):1787. doi: 10.1002/lary.28692. Epub 2020 Apr 15.

Reference Type BACKGROUND
PMID: 32237238 (View on PubMed)

Russell B, Moss C, Rigg A, Hopkins C, Papa S, Van Hemelrijck M. Anosmia and ageusia are emerging as symptoms in patients with COVID-19: What does the current evidence say? Ecancermedicalscience. 2020 Apr 3;14:ed98. doi: 10.3332/ecancer.2020.ed98. eCollection 2020.

Reference Type BACKGROUND
PMID: 32269598 (View on PubMed)

Koopman FA, Chavan SS, Miljko S, Grazio S, Sokolovic S, Schuurman PR, Mehta AD, Levine YA, Faltys M, Zitnik R, Tracey KJ, Tak PP. Vagus nerve stimulation inhibits cytokine production and attenuates disease severity in rheumatoid arthritis. Proc Natl Acad Sci U S A. 2016 Jul 19;113(29):8284-9. doi: 10.1073/pnas.1605635113. Epub 2016 Jul 5.

Reference Type BACKGROUND
PMID: 27382171 (View on PubMed)

Bonaz B, Sinniger V, Hoffmann D, Clarencon D, Mathieu N, Dantzer C, Vercueil L, Picq C, Trocme C, Faure P, Cracowski JL, Pellissier S. Chronic vagus nerve stimulation in Crohn's disease: a 6-month follow-up pilot study. Neurogastroenterol Motil. 2016 Jun;28(6):948-53. doi: 10.1111/nmo.12792. Epub 2016 Feb 27.

Reference Type BACKGROUND
PMID: 26920654 (View on PubMed)

Peuker ET, Filler TJ. The nerve supply of the human auricle. Clin Anat. 2002 Jan;15(1):35-7. doi: 10.1002/ca.1089.

Reference Type BACKGROUND
PMID: 11835542 (View on PubMed)

Other Identifiers

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1600899

Identifier Type: -

Identifier Source: org_study_id

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