Description of Research Expertise

1. Screening for obstructive sleep apnea in high risk populations
2. Sleep, sleep disorders and public health
3. Sleep disordered breathing and cardiovascular disease
3. Economics of sleep apnea screening

Selected Publications

KG Johnson, SS Sullivan, V Rastegar, I Gurubhagavatula: Sleep Medicine Health-Care Worker Concerns About COVID-19: An Early Pandemic Survey Respiratory Care 66 (11): 1729-38,2021.

KG Johnson, SS Sullivan, A Nti, V Rastegar, I Gurubhagavatula: The Impact of the COVID-19 Pandemic on Sleep Medicine Practices Journal of Clinical Sleep Medicine. 2020 Sep 23:jcsm-8830. : 2020.

B Izci-Balserak, B Zhu, I Gurubhagavatula, BT Keenan, GW Pien: A Screening Algorithm for Obstructive Sleep Apnea in Pregnancy Annals of the American Thoracic Society 16 (10): 1286-1294,2019.

MM Lyons, JF Kraemer, R Dhingra, BT Keenan, N Wessel, M Glos, T Penzel, I Gurubhagavatula: Screening for Obstructive Sleep Apnea in Commercial Drivers Using EKG-Derived Respiratory Power Index Journal of Clinical Sleep Medicine 15 (1): 2019.

S Jain, I Gurubhagavatula, R Townsend, ST Kuna, K Teff, TA Wadden, J Chittams, AL Hanlon, G Maislin, H Saif, P Broderick, Z Ahmad, AI Pack, JA Chirinos.: Effect of CPAP, Weight Loss, or CPAP Plus Weight Loss on Central Hemodynamics and Arterial Stiffness Hypertension 70 (6): 1283-1290,2017.

MM Lyons, BT Keenan, J Li, T Khan, N Elkasabanny, CM Walsh, NN Williams, AI Pack, I Gurubhagavatula: Symptomless Multi-Variable Apnea Prediction Index Assesses Obstructive Sleep Apnea Risk and Adverse Outcomes in Elective Surgery Sleep 40 (3): 2017.

D Chirinos, I Gurubhagavatula, P Broderick, J Chirinos, K Teff, T Wadden, G Maislin, H Saif, J Chittams, C Cassidy, A Hanson, AI Pack: Depressive symptoms in patients with Obstructive Sleep Apnea: Biological Mechanistic Pathways Journal of Behavioral Medicine 40 (6): 2017.

MA Grandner, S Chakravorty, ML Perlis, L Oliver, I Gurubhagavatula: Habitual sleep duration associated with self-reported and objectively-determined cardiometabolic risk factors Sleep Medicine 15 (1): 42-50,2014.

JA Chirinos, I Gurubhagavatula, K Teff, DJ Rader, TA Wadden, R Townsend, GD Foster, G Maislin, H Saif, P Broderick, J Chittams, AL Hanlon, AI Pack: CPAP, weight loss, or both for obstructive sleep apnea New England Journal of Medicine 370 (24): 2265-2275,2014.

Q Maia, MA Grandner, J Findley, I Gurubhagavatula: Short and long sleep duration and risk of drowsy driving and the role of subjective sleep insufficiency Accident Analysis and Prevention 59 : 618-622,2013.

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Academic Contact Information

Division of Sleep Medicine
3624 Market Street, Suite 205
Philadelphia, PA 19104
Phone: 215-662-7772
Patient appointments: 800-789-7366