Parthasarathy D. Thirumala, MD

  • Associate Professor
  • Director, Center of Clinical Neurophysiology

Parthasarathy D. Thirumala, MD, joined the Center of Clinical Neurophysiology in June 2008. Dr. Thirumala specializes in intraoperative neurophysiological monitoring to adult and pediatric neurosurgical, orthopedic, ENT, vascular and interventional neuroradiology procedures.

Dr. Thirumala completed his neurology residency and clinical neurophysiology fellowship training at the University of Pittsburgh Medical Center. He completed his internship in internal medicine training at Brookdale University Hospital and Medical Center in Brooklyn, N.Y. Prior to clinical training he completed his masters degree in biomedical engineering at the University of Illinois at Chicago. Dr. Thirumala completed his medical training in India at Stanley Medical College in Chennai, India.  

His clinical and research interests include intraoperative neurophysiological monit-oring during expanded endonasal approach, functional cortical mapping during awake craniotomies, ICU EEG.

He has published over 90 peer reviewed articles, book chapters, and invited articles in the journals including JAMA, Neurology, Neurology, Neurosurgery, Journal of Neurosurgery, and Journal of Clinical Neurophysiology. He has given lectures both nationally and internationally on the value of intraoperative neurophysiological monitoring.

Specialized Areas of Interest

Intraoperative neurophysiological monitoring; functional cortical mapping during awake craniotomies; neurophysiological monitoring during minimally invasive endonasal approach to skull base surgeries, electroencephalography in the intensive care unit and

Board Certifications

American Board of Clinical Neurophysiology: Intraoperative Monitoring
American Board of Neuroimaging
American Board of Neurophysiologic Monitoring
American Board of Psychiatry and Neurology

Hospital Privileges

Jameson Hospital
Monongahela Valley Hospital
UPMC Children’s Hospital of Pittsburgh
UPMC Hamot
UPMC Horizon
UPMC Magee-Womens Hospital
UPMC Mercy
UPMC Passavant
UPMC Presbyterian
UPMC St. Margaret
UPMC Shadyside

Professional Organization Membership

American Academy of Neurology
American Association of Neuromuscular and Electrodiagnostic Medicine
American Clinical Neurophysiology Society
American Epilepsy Society
American Medical Association
American Society of Neuroimaging
American Society of Neuromonitoring
America’s Registry of Outstanding Professionals
North American Spine Society

Education & Training

  • MBBS, Stanley Medical College, 1997
  • MS, University of Illinois, Bioengineering, 2001
  • Residency, Neurology, University of Pittsburgh, 2006
  • Fellowship, Clinical Neurophysiology, University of Pittsburgh, 2007

Selected Publications

Thirumala PD, Krishnaiah B, Habeych M, Crammond DJ, Balzer J, Hearing outcomes after loss of brainstem auditory evoked potentials during microvascular decompression. Journal of Clinical Neuroscience 22(4):659-63, 2015.

Thirumala PD, Kumar H, Bertolet M, Habeych ME, Crammond DJ, Balzer JR Risk factors for cranial nerve deficits during carotid endarterectomy: a retrospective study. Clin Neurol Neurosurg 130:150-4, 2015.

Thirumala P, Meigh K, Dasyam N, Shankar P, Sarma KR, Sarma DR, Habeych M, Crammond D, Balzer J.  The incidence of high-frequency hearing loss after microvascular decompression for trigeminal neuralgia, glossopharyngeal neuralgia, or geniculate neuralgia. J Neurosurg 1:1-7, 2015.

Thirumala PD, Wang X, Shah A, Habeych M, Crammond D, Balzer JR, Sekula R. Clinical impact of residual lateral spread response after adequate microvascular decompression for hemifacial spasm: A retrospective analysis. Br J Neurosurg 22:1-5, 2015.

Nwachuku EL, Yabes YG, Crammond DJ, Habeych ME, Balzer JR, Thirumala PD, Diagnostic Value of Somatosensory Evoked Potential (SSEP) Changes During Carotid Endarterectomy JAMA Neurol 72(1):73-80, 2015.

Habeych M, Thirumala PD, Crammond DJ, Balzer J Intraoperative neurophysiological monitoring of microvascular decompression for Glossopharyngeal neuralgia. Journal of Clinical Neurophysiology. J Clin Neurophysiol 31(4):337-43, 2014.

Mohanraj S, Thirumala PD, , Habeych M, Crammond DJ, Balzer J.Appropriate time to establish baseline responses for brainstem auditory evoked potentials during microvascular decompression for hemifacial spasm. J Clin Neurophysiol 31(5):500-4, 2014.

Thirumala PD, Bodily L, Tint D, Ward TW, Deeney VF, Crammond D, Habeych ME, Balzer JR. Somatosensory evoked potential monitoring during instrumented scoliosis corrective procedures: validity revisited. Spine J 14(8):1572-80, 2014.

Thirumala PD, Krishnaiah B, Habeych M, Crammond DJ, Balzer J Analysis of Wave III of Brain stem Auditory Evoked Potential Waveforms During Microvascular Decompression of Cranial Nerve VII for Hemifacial Spasm. J Clin Neurophysiol 31(2):127-32, 2014.

Ying T, Thirumala P, Chang Y, Habeych M, Crammond D, Balzer J. Emprical factors associated with Brainstem auditory evoked potential monitoring during microvascular decompression for hemifacial spasm and its correlation to hearing loss. Acta Neurochir (Wien) 156(3):571-5, 2014.