Helen Bronte-Stewart, MD, MS

Movement disorders specialist

Deep brain stimulation specialist

Neurodiagnostic Labs

  • 300 Pasteur Drive
  • Stanford, CA 94305
  • Phone: 650-723-6888
Learn More About the Clinic Getting Here Make An Appointment

Movement Disorders Center

  • 300 Pasteur Drive
  • Stanford, CA 94305
  • Phone: 650-723-6469
Learn More About the Clinic Getting Here Make An Appointment

Deep Brain Stimulation Program

  • 300 Pasteur Drive
  • Stanford, CA 94305
  • Phone: 650-723-6469
Learn More About the Clinic Getting Here Make An Appointment

Professional Education

Residency: Hospital of the University of Pennsylvania (1988) PA

Fellowship: UCSF Medical Center (1992) CA

Board Certification: Neurology, American Board of Psychiatry and Neurology (1991)

Internship: Hospital of the University of Pennsylvania (1985) PA

Medical Education: University of Pennsylvania School of Medicine (1984) PA

BA, University of York, England, Mathematics and physics

MSE, University of Pennsylvania, Bioengineering

MD, University of Pennsylvania, Medicine

Administrative Appointments

Co-director, Stanford Balance Center, 2010

Division Chief, Movement Disorders division, Department of Neurology and Neurological Sciences, 1999

Director, Stanford Movement Disorders Center, 1999

Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Hospital & Clinics patient, you have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

The effect of medication and the role of postural instability in different components of freezing of gait (FOG).
Nantel, J., & Bronte-Stewart, H. (2014). The effect of medication and the role of postural instability in different components of freezing of gait (FOG). Parkinsonism & related disorders, 20(4), 447-451.

Perceptual errors increase with movement duration and may contribute to hypokinesia in Parkinson's disease.
Koop, M. M., Hill, B. C., & Bronte-Stewart, H. M. (2013). Perceptual errors increase with movement duration and may contribute to hypokinesia in Parkinson's disease. Neuroscience, 243, 1-13.

Resting Beta Hypersynchrony in Secondary Dystonia and Its Suppression During Pallidal Deep Brain Stimulation in DYT3+ Lubag Dystonia.
Whitmer, D., de Solages, C., Hill, B. C., Yu, H., & Bronte-Stewart, H. (2013). Resting Beta Hypersynchrony in Secondary Dystonia and Its Suppression During Pallidal Deep Brain Stimulation in DYT3+ Lubag Dystonia. Neuromodulation , 16(3), 200-205.

Improved efficacy of temporally non-regular deep brain stimulation in Parkinson's disease
Brocker, D. T., Swan, B. D., Turner, D. A., Gross, R. E., Tatter, S. B., & Grill, W. M. (2013). Improved efficacy of temporally non-regular deep brain stimulation in Parkinson's disease. EXPERIMENTAL NEUROLOGY, 239, 60-67.

DEFICITS IN VISUOSPATIAL PROCESSING CONTRIBUTE TO QUANTITATIVE MEASURES OF FREEZING OF GAIT IN PARKINSON'S DISEASE
Nantel, J., McDonald, J. C., Tan, S., & Bronte-Stewart, H. (2012). DEFICITS IN VISUOSPATIAL PROCESSING CONTRIBUTE TO QUANTITATIVE MEASURES OF FREEZING OF GAIT IN PARKINSON'S DISEASE. NEUROSCIENCE, 221, 151-156.

High frequency deep brain stimulation attenuates subthalamic and cortical rhythms in Parkinson's disease
Whitmer, D., de Solages, C., Hill, B., Yu, H., Henderson, J. M., & Bronte-Stewart, H. (2012). High frequency deep brain stimulation attenuates subthalamic and cortical rhythms in Parkinson's disease. FRONTIERS IN HUMAN NEUROSCIENCE, 6.

Effect of medication and STN-DBS on postural control in subjects with Parkinson's disease
Nantel, J., McDonald, J. C., & Bronte-Stewart, H. (2012). Effect of medication and STN-DBS on postural control in subjects with Parkinson's disease. PARKINSONISM & RELATED DISORDERS, 18(3), 285-289.

New drugs/devices ? Deep brain stimulation (DBS)
Bronte-Stewart HM. (2012). New drugs/devices ? Deep brain stimulation (DBS). Neurology Clin Pract, 12(2).

Maximal subthalamic beta hypersynchrony of the local field potential in Parkinson's disease is located in the central region of the nucleus
de Solages, C., Hill, B. C., Yu, H., Henderson, J. M., & Bronte-Stewart, H. (2011). Maximal subthalamic beta hypersynchrony of the local field potential in Parkinson's disease is located in the central region of the nucleus. JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY, 82(12), 1387-1389.

Human Subthalamic Neuron Spiking Exhibits Subtle Responses to Sedatives
MacIver, M. B., Bronte-Stewart, H. M., Henderson, J. M., Jaffe, R. A., & Brock-Utne, J. G. (2011). Human Subthalamic Neuron Spiking Exhibits Subtle Responses to Sedatives. ANESTHESIOLOGY, 115(2), 254-264.

Repetitive stepping in place identifies and measures freezing episodes in subjects with Parkinson's disease
Nantel, J., de Solages, C., & Bronte-Stewart, H. (2011). Repetitive stepping in place identifies and measures freezing episodes in subjects with Parkinson's disease. GAIT & POSTURE, 34(3), 329-333.

Inclusion and Exclusion Criteria for DBS in Dystonia
Bronte-Stewart, H., Taira, T., Valldeoriola, F., Merello, M., Marks, W. J., & Moro, E. (2011). Inclusion and Exclusion Criteria for DBS in Dystonia. MOVEMENT DISORDERS, 26, S5-S16.

Deep Brain Stimulation in "On"-State Parkinson Hyperpyrexia
Klepitskaya, O., Cole, W., Henderson, J., & Bronte-Stewart, H. (2011). Deep Brain Stimulation in "On"-State Parkinson Hyperpyrexia. NEUROLOGY, 76(7), S69-S71.

Immediate versus delayed switch from levodopa/carbidopa to levodopa/carbidopa/entacapone: effects on motor function and quality of life in patients with Parkinson's disease with end-of-dose wearing off
Lew MF, Somogyi M, McCague K, Welsh M, & Lce Qol Study group. (2011). Immediate versus delayed switch from levodopa/carbidopa to levodopa/carbidopa/entacapone: effects on motor function and quality of life in patients with Parkinson's disease with end-of-dose wearing off. Int J Neurosci, 121(11).

Deep Brain Stimulation for Parkinson?s Disease. An expert consensus and review of key issues
Bronstein JM, Tagliati M., Alterman RL, & the Deep Brain Study group. (2011). Deep Brain Stimulation for Parkinson?s Disease. An expert consensus and review of key issues. Archives of Neurology, 68(2).

Clinical Motor Outcome of Bilateral Subthalamic Nucleus Deep-Brain Stimulation for Parkinson's Disease Using Image-Guided Frameless Stereotaxy
Bronte-Stewart, H., Louie, S., Batya, S., & Henderson, J. M. (2010). Clinical Motor Outcome of Bilateral Subthalamic Nucleus Deep-Brain Stimulation for Parkinson's Disease Using Image-Guided Frameless Stereotaxy. NEUROSURGERY, 67(4), 1088-1093.

Socioeconomic Trends in Deep Brain Stimulation (DBS) Surgery
Lad, S. P., Kalanithi, P. S., Patil, C. G., Itthimathin, P., Batya, S., & Henderson, J. M. (2010). Socioeconomic Trends in Deep Brain Stimulation (DBS) Surgery. NEUROMODULATION, 13(3), 182-186.

Bilateral symmetry and coherence of subthalamic nuclei beta band activity in Parkinson's disease
de Solages, C., Hill, B. C., Koop, M. M., Henderson, J. M., & Bronte-Stewart, H. (2010). Bilateral symmetry and coherence of subthalamic nuclei beta band activity in Parkinson's disease. EXPERIMENTAL NEUROLOGY, 221(1), 260-266.

Hybrid Cars May Interfere with Implanted Deep Brain Stimulators
Chen, C., Cole, W., & Bronte-Stewart, H. M. (2009). Hybrid Cars May Interfere with Implanted Deep Brain Stimulators. MOVEMENT DISORDERS, 24(15), 2290-2291.

Quantitative Lateralized Measures of Bradykinesia at Different Stages of Parkinson's Disease: The Role of the Less Affected Side
Louie, S., Koop, M. M., Frenklach, A., & Bronte-Stewart, H. (2009). Quantitative Lateralized Measures of Bradykinesia at Different Stages of Parkinson's Disease: The Role of the Less Affected Side. MOVEMENT DISORDERS, 24(13), 1991-1997.

Testing Objective Measures of Motor Impairment in Early Parkinson's Disease: Feasibility Study of an At-Home Testing Device
Goetz, C. G., Stebbins, G. T., Wolff, D., DeLeeuw, W., Bronte-Stewart, H., & Taylor, C. B. (2009). Testing Objective Measures of Motor Impairment in Early Parkinson's Disease: Feasibility Study of an At-Home Testing Device. MOVEMENT DISORDERS, 24(4), 551-556.

Excessive Postural Sway and the Risk of Falls at Different Stages of Parkinson's Disease
Frenklach, A., Louie, S., Koop, M. M., & Bronte-Stewart, H. (2009). Excessive Postural Sway and the Risk of Falls at Different Stages of Parkinson's Disease. MOVEMENT DISORDERS, 24(3), 377-385.

A comparison of treatment thresholds in two large Parkinson?s disease clinical trial cohorts
Marras C, Lang AE, Eberly SW, Oakes D, Fahn S, & PRECEPT investigators. (2009). A comparison of treatment thresholds in two large Parkinson?s disease clinical trial cohorts. Movement Disorders, 24(16).

The STN beta-band profile in Parkinson's disease is stationary and shows prolonged attenuation after deep brain stimulation
Bronte-Stewart, H., Barberini, C., Koop, M. M., Hill, B. C., Henderson, J. M., & Wingeier, B. (2009). The STN beta-band profile in Parkinson's disease is stationary and shows prolonged attenuation after deep brain stimulation. EXPERIMENTAL NEUROLOGY, 215(1), 20-28.

A longitudinal program for biomarker development in Parkinson?s disease: a feasibility study
Ravina B, Tanner C, Dieuliis D, Eberly S, Flagg E, & Shoulson I; Parkinson Study Group LABS-PD Investigators. (2009). A longitudinal program for biomarker development in Parkinson?s disease: a feasibility study. Movement Disorders, 24(14).

Quantitative measures of fine motor, limb, and postural bradykinesia in very early stage, untreated Parkinson's disease
Koop, M. M., Shivitz, N., & Bronte-Stewart, H. (2008). Quantitative measures of fine motor, limb, and postural bradykinesia in very early stage, untreated Parkinson's disease. MOVEMENT DISORDERS, 23(9), 1262-1268.

Mixed lineage kinase inhibitor CEP-1347 fails to delay disability in early Parkinson?s disease
The Parkinson's study group, & PRECEPT investigators. (2007). Mixed lineage kinase inhibitor CEP-1347 fails to delay disability in early Parkinson?s disease. Neurology, 69.

Bilateral subthalamic nucleus deep brain stimulation improves certain aspects of postural control in Parkinson's disease, whereas medication does not
Shivitz, N., Miller Koop, M., Fahimi, J., Heit, G., & Bronte-Stewart, H. M. (2006). Bilateral subthalamic nucleus deep brain stimulation improves certain aspects of postural control in Parkinson's disease, whereas medication does not. MOVEMENT DISORDERS, 21(8), 1088-1097.

Improvement in a quantitative measure of bradykinesia after microelectrode recording in patients with Parkinson's disease during deep brain stimulation surgery
Koop, M. M., Andrzejewski, A., Hill, B. C., Heit, G., & Bronte-Stewart, H. M. (2006). Improvement in a quantitative measure of bradykinesia after microelectrode recording in patients with Parkinson's disease during deep brain stimulation surgery. MOVEMENT DISORDERS, 21(5), 673-678.

Practice parameter: Treatment of Parkinson disease with motor fluctuations and dyskinesia (an evidence-based review) Report of the Quality Standards Subcommittee of the American Academy of Neurology
Pahwa, R., Factor, S. A., Lyons, K. E., Ondo, W. G., Gronseth, G., & Weiner, W. J. (2006). Practice parameter: Treatment of Parkinson disease with motor fluctuations and dyskinesia (an evidence-based review) Report of the Quality Standards Subcommittee of the American Academy of Neurology. NEUROLOGY, 66(7), 983-995.

Intra-operative STN DBS attenuates the prominent beta rhythm in the STN in Parkinson's disease
Wingeier, B., Tcheng, T., Koop, M. M., Hill, B. C., Heit, G., & Bronte-Stewart, H. M. (2006). Intra-operative STN DBS attenuates the prominent beta rhythm in the STN in Parkinson's disease. EXPERIMENTAL NEUROLOGY, 197(1), 244-251.

Quantitative measurements of Parkinson's disease correlate alternating finger tapping in with UPDRS motor disability and reveal the improvement in fine motor control from medication and deep brain stimulation
Tavares, A. Lt., Jefferis, G. Sxe., Koop, M., Hill, B. C., Hastie, T., & Bronte-Stewart, H. M. (2005). Quantitative measurements of Parkinson's disease correlate alternating finger tapping in with UPDRS motor disability and reveal the improvement in fine motor control from medication and deep brain stimulation. MOVEMENT DISORDERS, 20(10), 1286-1298.

The North American survey of placement and adjustment strategies for deep brain stimulation
Ondo, W. G., & Bronte-Stewart, H. (2005). The North American survey of placement and adjustment strategies for deep brain stimulation. STEREOTACTIC AND FUNCTIONAL NEUROSURGERY, 83(4), 142-147.

Microelectrode recording revealing a somatotopic body map in the subthalamic nucleus in humans with Parkinson disease
Romanelli, P., Heit, G., Hill, B. C., Kraus, A., Hastie, T., & Bronte-Stewart, H. M. (2004). Microelectrode recording revealing a somatotopic body map in the subthalamic nucleus in humans with Parkinson disease. JOURNAL OF NEUROSURGERY, 100(4), 611-618.

The functional organization of the sensorimotor region of the subthalamic nucleus
Romanelli, P., Bronte-Stewart, H., Heit, G., Schaal, D. W., & Esposito, V. (2004). The functional organization of the sensorimotor region of the subthalamic nucleus. STEREOTACTIC AND FUNCTIONAL NEUROSURGERY, 82(5-6), 222-229.

Possible necessity for deep brain stimulation of both the ventralis intermedius and subthalamic nuclei to resolve Holmes tremor - Case report
Romanelli, P., Bronte-Stewart, H., COURTNEY, T., & Heit, G. (2003). Possible necessity for deep brain stimulation of both the ventralis intermedius and subthalamic nuclei to resolve Holmes tremor - Case report. JOURNAL OF NEUROSURGERY, 99(3), 566-571.

Surgical therapy for dystonia.
Bronte-Stewart, H. (2003). Surgical therapy for dystonia. Current neurology and neuroscience reports, 3(4), 296-305.

Parkinson's Disease: Surgical Options.
Bronte-Stewart, H. (2003). Parkinson's Disease: Surgical Options. Current treatment options in neurology, 5(2), 131-147.

Postural instability in idiopathic Parkinson's disease: the role of medication and unilateral pallidotomy
Bronte-Stewart, H. M., Minn, A. Y., Rodrigues, K., Buckley, E. L., & Nashner, L. M. (2002). Postural instability in idiopathic Parkinson's disease: the role of medication and unilateral pallidotomy. BRAIN, 125, 2100-2114.

The cerebrospinal fluid production rate is reduced in dementia of the Alzheimer's type
Silverberg, G. D., Heit, G., Huhn, S., Jaffe, R. A., Chang, S. D., & Saul, T. A. (2001). The cerebrospinal fluid production rate is reduced in dementia of the Alzheimer's type. NEUROLOGY, 57(10), 1763-1766.

Postural instability in Parkinson?s Disease: Opposing effects of treatment on sensory and motor components
Nashner LM, Minn AY, Rodrigues K, Buckley EL, & Bront-Stewart HM. (2001). Postural instability in Parkinson?s Disease: Opposing effects of treatment on sensory and motor components. Control of Posture and Gait.

A physiological model of the effects of surgery on postural instability in Parkinson?s Disease and in Essential Tremor
Bront-Stewart HM, Minn AY, & Nashner LM. (2001). A physiological model of the effects of surgery on postural instability in Parkinson?s Disease and in Essential Tremor. Control of Posture and Gait.

Concurrent Parkinson tremors
Moore, G. P., Ding, L., & Bronte-Stewart, H. M. (2000). Concurrent Parkinson tremors. JOURNAL OF PHYSIOLOGY-LONDON, 529(1), 273-281.

Quantitative digitography (QDG): A sensitive measure of digital motor control in idiopathic Parkinson's disease
Bronte-Stewart, H. M., Ding, L., Alexander, C., Zhou, Y., & Moore, G. P. (2000). Quantitative digitography (QDG): A sensitive measure of digital motor control in idiopathic Parkinson's disease. MOVEMENT DISORDERS, 15(1), 36-47.

Rhythmic coritcal activity and its relation to movement in normal subjects and patients with movement disorders
Conway BA, Halliday DA, Farmer SF, Bront-Stewart HM, & Rosenberg JR. (1999). Rhythmic coritcal activity and its relation to movement in normal subjects and patients with movement disorders. Journal of Physiology, 518.

NEURAL BASIS FOR MOTOR LEARNING IN THE VESTIBULOOCULAR REFLEX OF PRIMATES .2. CHANGES IN THE RESPONSES OF HORIZONTAL GAZE VELOCITY PURKINJE-CELLS IN THE CEREBELLAR FLOCCULUS AND VENTRAL PARAFLOCCULUS
Lisberger, S. G., PAVELKO, T. A., BRONTESTEWART, H. M., & Stone, L. S. (1994). NEURAL BASIS FOR MOTOR LEARNING IN THE VESTIBULOOCULAR REFLEX OF PRIMATES .2. CHANGES IN THE RESPONSES OF HORIZONTAL GAZE VELOCITY PURKINJE-CELLS IN THE CEREBELLAR FLOCCULUS AND VENTRAL PARAFLOCCULUS. JOURNAL OF NEUROPHYSIOLOGY, 72(2), 954-973.

PHYSIOLOGICAL-PROPERTIES OF VESTIBULAR PRIMARY AFFERENTS THAT MEDIATE MOTOR LEARNING AND NORMAL PERFORMANCE OF THE VESTIBULOOCULAR REFLEX IN MONKEYS
BRONTESTEWART, H. M., & Lisberger, S. G. (1994). PHYSIOLOGICAL-PROPERTIES OF VESTIBULAR PRIMARY AFFERENTS THAT MEDIATE MOTOR LEARNING AND NORMAL PERFORMANCE OF THE VESTIBULOOCULAR REFLEX IN MONKEYS. JOURNAL OF NEUROSCIENCE, 14(3), 1290-1308.

EXPRESSION OF MOTOR LEARNING IN THE RESPONSE OF THE PRIMATE VESTIBULOOCULAR REFLEX PATHWAY TO ELECTRICAL-STIMULATION
Broussard, D. M., BRONTESTEWART, H. M., & Lisberger, S. G. (1992). EXPRESSION OF MOTOR LEARNING IN THE RESPONSE OF THE PRIMATE VESTIBULOOCULAR REFLEX PATHWAY TO ELECTRICAL-STIMULATION. JOURNAL OF NEUROPHYSIOLOGY, 67(6), 1493-1508.

PROPERTIES OF PATHWAYS THAT MEDIATE MOTOR LEARNING IN THE VESTIBULOOCULAR REFLEX OF MONKEYS
Lisberger, S. G., Broussard, D. M., & BRONTESTEWART, H. M. (1990). PROPERTIES OF PATHWAYS THAT MEDIATE MOTOR LEARNING IN THE VESTIBULOOCULAR REFLEX OF MONKEYS. COLD SPRING HARBOR LABORATORY PRESS.

LACUNAR INFARCTION OF THE BASAL GANGLIA AS A COMPLICATION OF HEMOLYTIC-UREMIC SYNDROME - MRI AND CLINICAL CORRELATIONS
DiMario, F. J., BRONTESTEWART, H., Sherbotie, J., & Turner, M. E. (1987). LACUNAR INFARCTION OF THE BASAL GANGLIA AS A COMPLICATION OF HEMOLYTIC-UREMIC SYNDROME - MRI AND CLINICAL CORRELATIONS. CLINICAL PEDIATRICS, 26(11), 586-590.