Rajeev Iyer, MBBS, MD, MS, FASA
Locations: Main Building
About Rajeev Iyer, MBBS, MD, MS, FASA
Titles
Anesthesiologist
Professor of Clinical Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania
Certifications
Anesthesiology – American Board of Anesthesiology
Pediatric Anesthesiology – American Board of Anesthesiology
Awards and Honors
2025, Research Award Presenter, Society for Pediatric Anesthesia, Orlando, Florida
2024, Editor's Pick, Best Articles Published in Pediatric Anesthesia, Society for Pediatric Anesthesia
2024, Top Cited Article in Pediatric Anesthesia, 2022-2023, Wiley Publishers
2023-present, Elected Chair, Research Committee, Society for Pediatric Anesthesia
2022, Pennovation Accelerator Program, University of Pennsylvania
2022, 3rd Prize, CBK Ventures Pitch Competition, City of Philadelphia, CBK, and Plain Sight Capital
2021, Top 3 Video Abstract, "Parental Education of A Child With A Femoral Nerve Catheter - A Video", American Society for Regional Anesthesia
2020-2023, Elected Co-Chair, Research Committee, Society for Pediatric Anesthesia
2020, Elected Director for International Outreach, Wake Up Safe, Patient Safety Organization
2019, Award, Patient-Oriented Research Track, Research Day, Children's Hospital of Philadelphia
2019, FASA, American Society of Anesthesiologists
2019-2021, Elected Board of Director (At Large), Society for Anesthesia and Sleep Medicine
2019, Featured Abstract, American Society of Anesthesiologists
2017, Selected in Top 25 best papers ever published in British Journal of Anesthesia on World Anesthesia Day
22016, Clinical Investigator, American Society of Anesthesiologists
2013, First prize winner, American Academy of Pediatrics
2011, Chief Fellow, Hospital for Sick Children, Toronto, Canada
2009, White Mountain Award, Society for Ambulatory Anesthesia
2009, Travel Award, Society for Ambulatory Anesthesia
2008, Medal for best graduating resident, Postgraduate Institute of Medical Education & Research, India
2008, M.N.A.M.S (Hon.) Member of National Academy of Medical Sciences, India
2007, Young Anesthesiologist, Indian Society of Anesthesiologists
Leadership and Memberships
Memberships in Professional Organizations
International
2022-present, Society for Paediatric Anaesthesia in New Zealand and Australia
- 2022-present, Advisory Committee on Patient Safety Organization
2020-present, International Anesthesia Research Society
- 2020-present, Reviewer, IARS Annual Meeting Submissions
2019-present, European Society for Paediatric Anaesthesia
- 2019-present, Advisory Committee on Patient Safety Organization
2018-present, Wake Up Safe Patient Safety Organization
- 2020-present, Director, International Outreach (Lead for establishing Wake Up Safe in India along with Indian Society of Anesthesiologists)
2018-present, Indian Association of Paediatric Anaesthesiologists
- 2018-present, Advisory Committee on Patient Safety Organization
2014-present, Society for Anesthesia and Sleep Medicine, Gold Patron Member
- 2015-present, Elected Member, Newsletter Committee,
- 2017-present, Elected Chair, Pediatric Committee, 2017-present
2011-present, Society for Pediatric Anesthesia
- 2017-present, Elected Member, Research Committee
- 2019-present, Reviewer, Young Investigator Grant
- 2023-present, Elected Chair, Research Committee
2004-present, Indian Society of Anesthesiologists
National
2019-present, National Institute of Health (Data Safety Monitoring Board Expert)
2017-present, American Academy of Otolaryngology
- 2017-present, Elected Member, Review Committee-Head and Neck Surgery Guidelines
2012-present, American Medical Association
2010-present, American Society of Anesthesiologists
- 2014-present, Elected Member, Outcomes and Database Research Committee
- 2015-present, Elected Member, Abstract Review Committee
- 2017-present, Reviewer, ASA Annual Meeting Submissions
Editorial and Academic Positions
Editorial Positions
2023-present, Editor, Pediatric Anesthesia
2018-present, Editor, Pediatric Medicine
Research Interests
Sleep disordered breathing Smoking and secondhand smoke exposure Quality improvement and patient safety
Education & training
Graduate Degree
MS in Clinical and Translational Research - University of Cincinnati, OH
Medical Degree
MBBS - Bangalore Medical College, Bangalore University, India
Internship
Medicine - Bangalore Medical College, Bangalore University, India
Residency
Anesthesiology - Post Graduate Institute of Medical Education and Research, Chandigarh, India
Fellowship
Ambulatory Anesthesiology - University of Toronto, Canada
Pediatric Anesthesiology - Hospital for Sick Children, Toronto, Canada
Advanced Fellowship - Quality Improvement, Cincinnati Children’s Hospital Medical Center, OH
Publications
Publications
2024
Qiu Q, Yang Z, Zhang Y, Iyer RS: Reducing postoperative hypothermia in infants: Quality improvement in China. Paediatric Anaesthesia 34(8): 773-782, Aug 2024.
Jones Oguh S, Iyer RS, Yuan I, Missett R, Daly Guris RJ, Johnson G, Babus LW, Massa CB, McClung-Pasqualino H, Garcia-Marcinkiewicz AG, Sequera-Ramos L, Kurth CD: Implementation of an electroencephalogram-guided propofol anesthesia practice in a large academic pediatric hospital: A quality improvement project. Paediatric Anaesthesia 34(2): 160-166, 2024.
2023
Isserman RS, Yuan I, Elliott EM, Muhly WT, Iyer RS, Farrell HA, Varallo DA, Georgostathi G, Richter AG, Stiso J, Tsui FR, Feldman JM : Reducing the environmental impact of mask inductions in children: A quality improvement report. Paediatric Anaesthesia 33(9): 728-735, 2023.
2022
Iyer RS, Matava C, Alessandro V, Drum ET, Dalal PG, Evans F, Griffis H, Liu H, Kajal K, Puri GD, Varghese E, Fiadjoe JE: A global cross-sectional survey of personal protective equipment practices from 125 institutions in 37 countries during the COVID-19 pandemic. Journal of Clinical Anesthesia 80: 110881, 2022.
Kandil AI, Ok MS, Baroch KA, Subramanyam R, Mahmoud MA, McAuliffe JJ 3rd: Why a Propofol Infusion Should Be the Anesthetic of Choice for Auditory Brainstem Response Testing in Children. Anesthesia Analgesia 134(4): 802-809, 2022.
Mecoli MD, Ding L, Yang G, McSoley JW, Doellman DA, Rineair SA, Subramanyam R: Factors associated with intraoperative intravenous catheter extravasation in children. Anaesthesia Intensive Care 50(4): 306-311, 2022.
2021
Subramanyam R, Willging P, Ding L, Yang G, Varughese A: Factors Associated with Postadenotonsillectomy Unexpected Admissions in Children. Anesthesia & Analgesia 132(6): 1700-1709, 2021.
2020
Daly Guris RJ, Elliott EM, Doshi A, Singh D, Widmeier K, Deutsch ES, Nadkarni VM, Jackson KR, Subramanyam R, Fiadjoe JE, Gurnaney HG: Systems-focused simulation to prepare for COVID-19 intraoperative emergencies Paediatric Anaesthesia 30(8): 947-950, 2020.
Drum E, Pasqualino HM, Subramanyam R: Anesthesia and potential aerosol generation during magnetic resonance imaging in children with COVID-19. Paediatric Anaesthesia 30(8): 944-946, 2020.
Jablonka DH, Nishisaki A, Feldman JM, Galvez JA, Gurnaney HG, Rizzi MD, Simpao AF, Subramanyam R, Litman RS: Exhaled nitric oxide measurement before pediatric adenotonsillectomy: A feasibility study. Paediatric Anaesthesia 30(9): 1027-1032, 2020.
Subramanyam R, Tapia IE, Zhang B, Mensinger J, Garcia-Marcinkiewicz, Jablonka D, Galvez J, Arnez K, Schnoll R: Secondhand Smoke Exposure and Risk of Obstructive Sleep Apnea in Children. International Journal of Pediatric Otorhinolaryngology 130: 109807, 2020.
2019
Galvez JA, Yaport M, Maeder-Chieffo S, Simpao AF, Tan J, Wasey JO, Lingappan AM, Jablonka DH, Subramanyam R, Ahumuda LM, Song B, Wu Lezhou, Dubow S, Rehman MA: STBUR: Sleep trouble breathing and unrefreshed questionnaire: Evaluation of screening tool for post-anesthesia care and disposition. Paediatric Anaesthesia 29(8): 821-828, 2019.
Isserman R, Elliott E, Subramanyam R, Kraus B, Sutherland T, Madu C, Stricker PA: Quality Improvement project to reduce pediatric clear liquid fasting times prior to anesthesia. Pediatric Anesthesia 29(7): 698-704, 2019 Notes: Accepted, In Press
Narayanasamy S, Adler E, Mahmoud M, Burkley M, Lim FY, Subramanyam R: Airway management of congenital pulmonary airway malformation resection in neonates and infants: A case cohort study. Paediatric Anaesthesia 29(8): 808-813, 2019.
2018
Chidambaran V, Subramanyam R, Ding L, Sadhasivam S, Geisler K, Stubbeman B, Sturm P, Jain V, Eckman MH : Cost-effectiveness of intravenous acetaminophen and ketorolac in children undergoing major spine surgery. Pediatric Anesthesia 28(3): 237-248, 2018.
2016
Subramanyam, R., Yeramaneni, S., Hossain, M.D., Anneken, A., Varughese, A. Perioperative respiratory adverse events in pediatric ambulatory anesthesia: Development and validation of a risk prediction tool. Anesthesia & Analgesia 122: 1578-1585, 2016.
Subramanyam, R., Fleck, R., McAuliffe, J., Radhakrishnan, R., Jung, D.E., Patino, M., Mahmoud, M. Airway morphology in down syndrome patients under Dexmedetomidine sedation. Brazilian Journal of Anesthesiology 66: 388-394, 2016.
Buck, D., Subramanyam, R., Varughese, A. A quality improvement project to reduce the intraoperative use of single dose fentanyl vials across multiple patients at a pediatric institution. Pediatric Anesthesia 26:92-101, 2016.
Kandil, A., Subramanyam, R., Ishman, S., Shott, S., Hossain, M.D., Tewari, A., Mahmoud, M. Comparison of the combination of dexmedetomidine and ketamine to propofol or propofol/sevoflurane for drug-induced sleep endoscopy in children. Pediatric Anesthesia 26:742-751, 2016.
Subramanyam, R., Mahmoud, M., Buck, D., Varughese, A. Infusion medication error reduction by two-person verification: a quality improvement initiative. Pediatrics 138: pii: e20154413, 2016.
2015
Subramanyam, R., Cudilo, E.M., Hossain, M.D., McAulifee, J., Wu, J., Patino, M., Gunter, J., Mahmoud, M. To pretreat or not to pretreat: Prophylactic anticholinergic administration prior to dexmedetomidine in pediatric imaging. Anesthesia & Analgesia 121:479-485, 2015.
2014
Subramanyam, R., Chidambaran, V., Ding, L., Sadhasivam, S. Anesthesia and opioid related malpractice claims in the United States: LexisNexis Claims database – 1984 to 2012. Pediatric Anesthesia 24:412-20, 2014.
Subramanyam, R., Varughese, A., Kurth, C.D., Eckman, M.H. Cost-effectiveness of Intravenous Acetaminophen for Pediatric Tonsillectomy. Pediatric Anesthesia 24:467-475, 2014.
2013
Subramanyam, R., Varughese, A., Willging, J.P., Sadhasivam, S. Future of pediatric tonsillectomy and perioperative outcomes. International Journal of Pediatric Otorhinolaryngology 77:194-199, 2013.
2012
Mehta, V., Subramanyam, R., Shapiro, C.M., Chung, F. Health effects of identifying patients with undiagnosed obstructive sleep apnea in the preoperative clinic: a follow-up study. Canadian Journal of Anaesthesia 59: 544-555, 2012.
Chung, F., Subramanyam, R., Liao, P., Sasaki, E., Shapiro, C., Sun, Y. A higher score of STOP-Bang questionnaire predicts more severe obstructive sleep apnea. British Journal of Anaesthesia 108:768-75, 2012. (Highly Cited Article).
2011
Zhang, L., Seet, E., Mehta, V., Subramanyam, R., Saravanan, P.A. Oropharyngeal leak pressure of LMA SupremeTM at different intracuff pressures - A Randomized Controlled. Canadian Journal of Anaesthesia 58:624-629, 2011.
Subramanyam, R., Vaishnav, V., Chan, V.W.S., Brown-Shreves, D., Brull, R. Lateral vs. Medial Needle Approach for ultrasound-guided supraclavicular block: A Randomized Controlled Trial. Regional Anesthesia and Pain Medicine 36:387-392, 2011.
2010
Seet, E., Subramanyam, R., Firoz, T., Yousaf, F., Wong, J., Wong, D.T., Chung, F. Safety and efficacy of LMA SupremeTM Versus LMA ProSealTM - A Randomized Controlled Trial. European Journal of Anaesthesiology 27:602-607, 2010.
Seet, E., Yousaf, F., Gupta, S., Subramanyam, R., Wong, D., Chung, F. Use of manometry for laryngeal mask airway reduces postoperative pharyngolaryngeal adverse events. Anesthesiology 112:652-657, 2010.
Parrington, S.J., O’Donnell, D., Chan, V.W.S., Brown-Shreves, D., Subramanyam, R., Qu, M., Brull, R. Dexamethasone added to mepivacaine prolongs the duration of analgesia following supraclavicular brachial plexus blockade. Regional Anesthesia Pain Medicine 35:422-426, 2010.
Harjeet., Sahni, D., Batra, Y.K., Rakesh, S.V., Subramanyam, R. Anatomical dimensions of larynx, epiglottis and cricoid cartilage in fetuses and their relationship with crown rump length. Surgical and Radiologic Anatomy 32:675-681, 2010.
Batra, Y.K., Rakesh, S.V., Panda, N.B., Lokesh, V.C., Subramanyam, R. Intrathecal clonidine decreases sedation requirements during spinal anesthesia in infants. Pediatric Anesthesia 20:625-632, 2010.
2009
Kumar, M., Batra, Y.K., Panda, N.B., Subramanyam, R., Nagi, O.N. Tramadol added to bupivacaine does not prolong analgesia of continuous psoas compartment block. Pain Practice 9:43-50, 2009.
Batra, Y.K., Subramanayam, R., Panda, N.B., Lokesh, V.C., Rao, K.L.N. Study of different doses of intrathecal neostigmine with bupivacaine for infants undergoing lower abdominal and urogenital procedures. Acta Anaesthesiologica Scandinavica 53:470-475, 2009.
Aggarwal, A., Kaur, H., Batra, Y.K., Aggarwal, A.K., Subramanyam, R., Sahni, D. Anatomic consideration of caudal epidural space: A cadaver study. Clinical Anatomy 22:730-737, 2009.
2008
Harjeet., Saini, D., Batra, Y.K., Subramanyam, R. Anatomical dimensions of trachea, main bronchi, subcarinal and bronchial angles in fetuses measuredex vivo. Pediatric Anesthesia 18:1029-1034, 2008.
Muralikrishna, T., Panda, N.B., Batra, Y.K., Subramanyam, R. Combination of low doses of intrathecal ketamine and midazolam with bupivacaine improves postoperative analgesia in orthopedic surgery. European Journal of Anaesthesiology 25:299-306, 2008.
Batra, Y.K., Lokesh, V.C., Panda, N.B., Subramanyam, R., Rao, L.N. Dose ranging study of intrathecal fentanyl in infants undergoing lower abdominal and urological procedures. Pediatric Anesthesia 18:613-619, 2008.
Batra, Y.K., Mahajan, R., Kumar, S., Subramanyam, R., Dhillon, M.S. Dose ranging study of intra-articular midazolam for pain relief following knee arthroscopy. Anesthesia & Analgesia 107:669-672, 2008.
2007
Subramanyam, R., Batra, Y.K., Panda, N.B., Kumar, M., Nagi, O.N. Combined continuous “3-in-1” and sciatic nerve blocks provide improved postoperative analgesia with no correlation to catheter tip location after unilateral total knee arthroplasty. Journal of Arthroplasty 22:1181-1186, 2007.
Abstracts (includes Posters and Scientific Presentations)
2025
Iyer RS, Thapar S, Singh D, Ngamprasetwong P, Gurnaney H. Pediatric Anesthesiology Shortage Crisis and Novel Paths to Hire Talent. Society for Pediatric Anesthesia Annual Meeting, Orlando, FL March 2025 Notes: Poster Presentation
Truong T, Singh D, Gurnaney H, Iyer R. It’s only the dad who is at risk for Malignant Hyperthermia, not the biological daughter! Society for Pediatric Anesthesia Annual Meeting, Orlando, FL March 2025 Notes: Poster Presentation
Truong T, Lepore G, Doshi A, Gurnaney H, Iyer R, Garcia-Marcinkiewicz A, Singh D, Babus L. An immersive medical student simulation experience: Generating interest in a career in anesthesiology while building community. Society for Pediatric Anesthesia Annual Meeting, Orlando, FL March 2025 Notes: Poster Presentation
Truong T, Srinivasan I, Gurnaney H, Singh D, Thapar S, Iyer R. Addressing Canada’s Anesthesiology Shortage: A Review of Regulatory Pathways for IMGs. American Society of Anesthesiologists, San Antonio, TX, October 2025. (Accepted)
Truong T, Thapar S, Gurnaney H, Singh D, Ngamprasetwong P, Iyer R. American Board of Anesthesiology Alternative Entry Paths for Primary Board Certification: A Review. American Society of Anesthesiologists, San Antonio, TX, October 2025. (Accepted)
Truong T, Lepore G, Doshi A, Gurnaney H, Iyer R, Garcia-Marcinkiewicz A, Singh D, Babus L Medical Student Simulation as a Tool to Foster Careers in Anesthesiology. American Society of Anesthesiologists, San Antonio, TX, October 2025. (Accepted)
Lectures by Invitation
2017
Subramanyam R. March, 2017 “Pediatric Tonsillectomy Outcomes” – Society for Pediatric Anesthesia, Austin, Texas
Subramanyam R. January, 2017 “Clinical Effectiveness Research in Pediatrics” – Children’s Hospital of Philadelphia, Pennsylvania
Subramanyam R. January, 2017 “Moderator” Fellow Journal Club, Children’s Hospital of Philadelphia, Pennsylvania
2016
Subramanyam R. October, 2016 “Pediatric Obstructive Sleep Apnea” – Ohio Society of Anesthesiologists, Columbus, Ohio
Subramanyam R. April, 2016 “Pediatric Outcomes” – Networking Anesthesia World Convention, New York, New York
2015
Subramanyam R. October, 2015 “Quality Improvement and Patient Safety in Pediatric Anesthesia” – Post Graduate Institute of Medical Education and Research, India
Books
2024
Qiu Q, Yang Z, Zhang Y, Iyer RS: Reducing postoperative hypothermia in infants: Quality improvement in China. Paediatric Anaesthesia 34(8): 773-782, Aug 2024.
Jones Oguh S, Iyer RS, Yuan I, Missett R, Daly Guris RJ, Johnson G, Babus LW, Massa CB, McClung-Pasqualino H, Garcia-Marcinkiewicz AG, Sequera-Ramos L, Kurth CD: Implementation of an electroencephalogram-guided propofol anesthesia practice in a large academic pediatric hospital: A quality improvement project. Paediatric Anaesthesia 34(2): 160-166, 2024.
2023
Isserman RS, Yuan I, Elliott EM, Muhly WT, Iyer RS, Farrell HA, Varallo DA, Georgostathi G, Richter AG, Stiso J, Tsui FR, Feldman JM : Reducing the environmental impact of mask inductions in children: A quality improvement report. Paediatric Anaesthesia 33(9): 728-735, 2023.
2022
Iyer RS, Matava C, Alessandro V, Drum ET, Dalal PG, Evans F, Griffis H, Liu H, Kajal K, Puri GD, Varghese E, Fiadjoe JE: A global cross-sectional survey of personal protective equipment practices from 125 institutions in 37 countries during the COVID-19 pandemic. Journal of Clinical Anesthesia 80: 110881, 2022.
Kandil AI, Ok MS, Baroch KA, Subramanyam R, Mahmoud MA, McAuliffe JJ 3rd: Why a Propofol Infusion Should Be the Anesthetic of Choice for Auditory Brainstem Response Testing in Children. Anesthesia Analgesia 134(4): 802-809, 2022.
Mecoli MD, Ding L, Yang G, McSoley JW, Doellman DA, Rineair SA, Subramanyam R: Factors associated with intraoperative intravenous catheter extravasation in children. Anaesthesia Intensive Care 50(4): 306-311, 2022.
2021
Subramanyam R, Willging P, Ding L, Yang G, Varughese A: Factors Associated with Postadenotonsillectomy Unexpected Admissions in Children. Anesthesia & Analgesia 132(6): 1700-1709, 2021.
2020
Daly Guris RJ, Elliott EM, Doshi A, Singh D, Widmeier K, Deutsch ES, Nadkarni VM, Jackson KR, Subramanyam R, Fiadjoe JE, Gurnaney HG: Systems-focused simulation to prepare for COVID-19 intraoperative emergencies Paediatric Anaesthesia 30(8): 947-950, 2020.
Drum E, Pasqualino HM, Subramanyam R: Anesthesia and potential aerosol generation during magnetic resonance imaging in children with COVID-19. Paediatric Anaesthesia 30(8): 944-946, 2020.
Jablonka DH, Nishisaki A, Feldman JM, Galvez JA, Gurnaney HG, Rizzi MD, Simpao AF, Subramanyam R, Litman RS: Exhaled nitric oxide measurement before pediatric adenotonsillectomy: A feasibility study. Paediatric Anaesthesia 30(9): 1027-1032, 2020.
Subramanyam R, Tapia IE, Zhang B, Mensinger J, Garcia-Marcinkiewicz, Jablonka D, Galvez J, Arnez K, Schnoll R: Secondhand Smoke Exposure and Risk of Obstructive Sleep Apnea in Children. International Journal of Pediatric Otorhinolaryngology 130: 109807, 2020.
2019
Galvez JA, Yaport M, Maeder-Chieffo S, Simpao AF, Tan J, Wasey JO, Lingappan AM, Jablonka DH, Subramanyam R, Ahumuda LM, Song B, Wu Lezhou, Dubow S, Rehman MA: STBUR: Sleep trouble breathing and unrefreshed questionnaire: Evaluation of screening tool for post-anesthesia care and disposition. Paediatric Anaesthesia 29(8): 821-828, 2019.
Isserman R, Elliott E, Subramanyam R, Kraus B, Sutherland T, Madu C, Stricker PA: Quality Improvement project to reduce pediatric clear liquid fasting times prior to anesthesia. Pediatric Anesthesia 29(7): 698-704, 2019 Notes: Accepted, In Press
Narayanasamy S, Adler E, Mahmoud M, Burkley M, Lim FY, Subramanyam R: Airway management of congenital pulmonary airway malformation resection in neonates and infants: A case cohort study. Paediatric Anaesthesia 29(8): 808-813, 2019.
2018
Chidambaran V, Subramanyam R, Ding L, Sadhasivam S, Geisler K, Stubbeman B, Sturm P, Jain V, Eckman MH : Cost-effectiveness of intravenous acetaminophen and ketorolac in children undergoing major spine surgery. Pediatric Anesthesia 28(3): 237-248, 2018.
2016
Buck D, Subramanyam R, Varughese A: A quality improvement project to reduce the intraoperative use of single dose fentanyl vials across multiple patients at a pediatric institution. Pediatric Anesthesia 26(1): 92-101, 2016.
Kandil A, Subramanyam R, Ishman S, Shott S, Hossain MD, Tewari A, Mahmoud M: Comparison of the combination of dexmedetomidine and ketamine to propofol or propofol/sevoflurane for drug-induced sleep endoscopy in children. Pediatric Anesthesia 26(7): 742-751, 2016.
Subramanyam R, Fleck R, McAuliffe J, Radhakrishnan R, Jung DE, Patino M, Mahmoud M: Airway morphology in down syndrome patients under Dexmedetomidine sedation. Brazilian Journal of Anesthesiology 66: 388-394, 2016.
Subramanyam R, Mahmoud M, Buck D, Varughese A: Infusion medication error reduction by two-person verification: a quality improvement initiative. Pediatrics 138(6): e20154413, 2016.
Subramanyam R, Yeramaneni S, Hossain MD, Anneken A, Varughese A: Perioperative respiratory adverse events in pediatric ambulatory anesthesia: Development and validation of a risk prediction tool. Anesthesia & Analgesia 122(5): 1578-1585, 2016.
2015
Subramanyam R, Cudilo EM, Hossain MD, McAulifee J, Wu J, Patino M, Gunter J, Mahmoud M : To pretreat or not to pretreat: Prophylactic anticholinergic administration prior to dexmedetomidine in pediatric imaging. Anesthesia & Analgesia 121(2): 479-485, 2015.
2014
Chong CT, Manninen P, Sivanaser V, Subramanyam R, Lu N, Venkatraghavan L : Direct comparison of the effect of desflurane and sevoflurane on intraoperative motor-evoked potential monitoring. Journal of Neurosurgical Anesthesiology 26(4): 306-312, 2014.
Subramanyam R, Chidambaran V, Ding L, Sadhasivam S: Anesthesia and opioid related malpractice claims in the United States: LexisNexis Claims database - 1984 to 2012. Pediatric Anesthesia 24(4): 412-420, 2014.
Subramanyam R, Varughese A, Kurth CD, Eckman MH: Cost-effectiveness of Intravenous Acetaminophen for Pediatric Tonsillectomy. Pediatric Anesthesia 24(5): 467-475, 2014.
2012
Chung F, Subramanyam R, Liao P, Sasaki E, Shapiro C, Sun Y : A higher score of STOP-Bang questionnaire predicts more severe obstructive sleep apnea. British Journal of Anaesthesia 108(5): 768-775, 2012.
Mehta V, Subramanyam R, Shapiro CM, Chun F : Health effects of identifying patients with undiagnosed obstructive sleep apnea in the preoperative clinic: a follow-up study. Canadian Journal of Anaesthesia 59(6): 544-555, 2012.
2011
Subramanyam R, Vaishnav V, Chan VWS, Brown-Shreves D, Brull R: Lateral vs. Medial Needle Approach for ultrasound-guided supraclavicular block: A Randomized Controlled Trial. Regional Anesthesia and Pain Medicine 36(4): 387-392, 2011.
Zhang L, Seet E, Mehta V, Subramanyam R, Saravanan PA: Oropharyngeal leak pressure of LMA SupremeTM at different intracuff pressures - A Randomized Controlled. Canadian Journal of Anaesthesia 58(7): 624-629, 2011.
2010
Batra YK, Rakesh SV, Panda NB, Lokesh VC, Subramanyam R : Intrathecal clonidine decreases sedation requirements during spinal anesthesia in infants. Pediatric Anesthesia 20(7): 625-632, 2010.
Chakravarthy M, Narayan S, Govindarajan R, Jawali V, Subramanyam RJawali V: Weaning mechanical ventilation after off-pump coronary artery bypass graft procedures directed by noninvasive gas measurements. Journal of Cardiothoracic and Vascular Anesthesia 24(3): 451-455, 2010.
Harjeet SD, Batra YK, Rakesh SV, Subramanyam R: Anatomical dimensions of larynx, epiglottis and cricoid cartilage in fetuses and their relationship with crown rump length. Surgical and Radiologic Anatomy 32(7): 675-681, 2010.
Parrington SJ, O'Donnell D, Chan VWS, Brown-Shreves D, Subramanyam R, Qu M, Brull R : Dexamethasone added to mepivacaine prolongs the duration of analgesia following supraclavicular brachial plexus blockade. Regional Anesthesia Pain Medicine 35(5): 422-426, 2010.
Seet E, Subramanyam R, Firoz T, Yousaf F, Wong J, Wong DT, Chung F : Safety and efficacy of LMA SupremeTM Versus LMA ProSealTM - A Randomized Controlled Trial. European Journal of Anaesthesiology 27(7): 602-607, 2010.
Seet E, Yousaf F, Gupta S, Subramanyam R, Wong D, Chung F: Use of manometry for laryngeal mask airway reduces postoperative pharyngolaryngeal adverse events. Anesthesiology 112(3): 652-657, 2010.
2009
Aggarwal A, Kaur H, Batra YK, Aggarwal AK, Subramanyam R, Sahni D : Anatomic consideration of caudal epidural space: A cadaver study. Clinical Anatomy 22(6): 730-737, 2009.
Batra YK, Subramanayam R, Panda NB, Lokesh VC, Rao KLN : Study of different doses of intrathecal neostigmine with bupivacaine for infants undergoing lower abdominal and urogenital procedures. Acta Anaesthesiologica Scandinavica 53(4): 470-475, 2009.
Chakravarhty M, Subramanyam R, Jawali V: Cardiac index value measurement by invasive, semi-invasive and non invasive techniques - a prospective study in postoperative off pump coronary artery bypass surgery patients. Journal of Clinical Monitoring and Computing 23(3): 175-180, 2009.
Kumar M, Batra YK, Panda NB, Subramanyan R, Nagi ON: Tramadol added to bupivacaine does not prolong analgesia of continuous psoas compartment block. Pain Practice 9(1): 43-50, 2009.
2008
Batra YK, Lokesh VC, Panda NB, Subramanyam R, Rao LN: Dose ranging study of intrathecal fentanyl in infants undergoing lower abdominal and urological procedures. Pediatric Anesthesia 18: 613-619, 2008.
Batra YK, Mahajan R, Kumar S, Subramanyam R, Dhillon MS : Dose ranging study of intra-articular midazolam for pain relief following knee arthroscopy. Anesthesia & Analgesia 107(2): 669-672, 2008.
Harjeet SD, Batra YK, Subramanyam R: Anatomical dimensions of trachea, main bronchi, subcarinal and bronchial angles in fetuses measured ex vivo. Pediatric Anesthesia 18(11): 1029-1034, 2008.
Muralikrishna T, Panda NB, Batra YK, Subramanyam R: Combination of low doses of intrathecal ketamine and midazolam with bupivacaine improves postoperative analgesia in orthopedic surgery. European Journal of Anaesthesiology 25:299-306, 2008 25(4): 299-306, 2008.
2007
Subramanyam R, Batra YK, Panda NB, Kumar M, Nagi ON: Combined continuous "3-in-1" and sciatic nerve blocks provide improved postoperative analgesia with no correlation to catheter tip location after unilateral total knee arthroplasty. Journal of Arthroplasty 22(8): 1181-1186, 2007.
Editorials, Reviews, Chapters
2025
Iyer RS, Gurnaney H. Alternative State Licensure and Board Certification Pathways for International Medical Graduates. Acad Med. 2025 Mar 13. doi: 10.1097/ACM.0000000000006032. Epub ahead of print. PMID: 40080644.
2024
Iyer RS, Dave N, Du T, Bong CL, Siow YN, Taylor E, Tjia I.: Wake Up Safe in the USA & International Patient Safety. Pediatric Anesthesia 34(9): 958-969, Sep 2024.
Rai E, Varghese E, Yaddanapudi S, Iyer RS: Advancing pediatric perioperative care in India: A contemporary overview. Paediatric Anaesthesia 34(9): 875-883, 2024.
Iyer RS, Koziol J, Gurnaney H: Getting to the basics: A closer look at acetaminophen (paracetamol). Paediatric Anaesthesia 2024 Oct;34(10):983-984. doi: 10.1111/pan.14947. Epub 2024 Jun 10. PMID: 38859690.
2022
Buck DW, Claure R, Tjia IM, Varughese AM, Brustowicz R, Subramanyam R: How the Wake Up Safe pediatric anesthesia collaborative increased quality improvement capability and collaboration. Paediatric Anaesthesia 32(11): 1246-1251, 2022.
Jones Oguh S, McClung H, Jablonka D, Subramanyam R: Pediatric obstructive sleep apnea: screening, diagnosis, outcomes, and disparities in care. International Anesthesiology Clinics 60(2): 66-73, 2022.
Yuan I, Missett RM, Jones-Oguh S, Massa CB, Babus LW, Garcia-Marcinkiewicz AG, Daly Guris RJ, Johnson G, McClung-Pasqualino H, Sequera-Ramos L, Iyer RS, Kurth CD: Implementation of an electroencephalogram-guided propofol anesthesia education program in an academic pediatric anesthesia practice. Paediatric Anaesthesia 32(11): 1252-1261, 2022.
Iyer RS, Varughese AM: Closing the global quality gaps in pediatric anesthesia. Paediatric Anaesthesia 32(11): 1178-1180, 2022.
Subramanyam R, Romer AJ, Montenegro L: Intravenous magnesium: Are we crossing the limits? Paediatric Anaesthesia 32(4): 494-496, 2022.
2021
Wolfe HA, Taylor A, Subramanyam R: Statistics in quality improvement: Measurement and statistical process control. Pediatric Anesthesia 31(5): 539-547, 2021.
2020
Jones Oguh S, Elden L, Swanson J, Tapia IE, Subramanyam R: New treatments for obstructive sleep apnea in children. Paediatric Anaesthesia 30(3): 232-240, 2020.
Muhly WT, Taylor E, Razavi C, Walker SM, Yang L, de Graaff JC, Vutskits L, Davidson A, Zuo Y, Pérez-Pradilla C, Echeverry P, Torborg AM, Xu T, Rawlinson E, Subramanyam R, Whyte S, Seal R, M Meyer H, Yaddanapudi S, Goobie SM, Cravero JP, Keaney A, Graham MR, Ramo T, Stricker PA; Pediatric Perioperative Outcomes Group: A systematic review of outcomes reported inpediatric perioperative research: A report from the Pediatric Perioperative Outcomes Group. Paediatric Anaesthesia 30: 13981, 2020.
Subramanyam R, Mason K: Anesthesia for MRI environment. Anesthesia Equipment, Third Edition. Ehrenwerth J, Eisenkraft J, Berry J (eds.). Saunders, Philadelphia, PA, Page: 453-467, 2020.
Subramanyam R, Muhly WT, Goobie SM: Enhanced recovery: The evolution of pediatric spinal fusion care. Paediatric Anaesthesia 30(10): 1066-1067, 2020.
2019
Narayanswamy S, Srinivasan S, Mahmoud M, Subramanyam R: Pediatric Sleep disordered Breathing: A narrative review. Pediatric Medicine 10(6): 955, June 2019.
Naik V, Rao K, Maddirala S, Rayani B, Subramanyam R: Long-term venous access devices and anaesthesiologists. Update in Anaesthesia 33: 62-69, 2019.
Jablonka D, Srinivasan A, Schwartz AJ, Subramanyam R: Pulmonary Thromboembolism. Anesthesiology 130: 149, 2019.
Subramanyam R, Isserman R, Maddirala S, Kurth CD: Quality Improvement and Safety Analytics can improve perioperative safety for children in developing countries. Pediatric Anesthesia 29(4): 298-299, 2019.
2018
Jablonka D, Elden L, Tapia I, Subramanyam R: Pediatric Obstructive Sleep Apnea and Postoperative Respiratory Adverse Event. Section 2: Sleep Related Breathing Disorders, Case Book of Sleep Medicine. Olson EJ, Winkelman JW (eds.). American Academy of Sleep Medicine, Darien, IL, Page: 125-130, 2018.
Jones S, Kilgallon S, Schwartz AJ, Subramanyam R: Persistent pulmonary interstitial emphysema. Anesthesiology 129: 808, 2018.
2017
Cooper E, Tobias E, Koziol J, Subramanyam R: Anesthesia for ENT Surgery. Anesthesiology. Springer Press, 2017 Notes: In Press.
Kandil A, Smith G, Mahmoud M, Abruzzo T, Vadivelu S, Subramanyam R: Epidural blood patch in children under anesthesia: Is there an indication for intraoperative neuromonitoring? Journal of Neurosurgical Anesthesiology 30(3): 275-276, 2017.
Soler X, Mohamed M, Smith G, Subramanyam R: Not all mucous plugs are created equal! Journal of Clinical Anesthesia 37: 129, 2017.
Subramanyam R, Ledbetter K, Fleck R, Mahmoud M : Congenital pulmonary airway malformation. Anesthesiology 127: 382, 2017.
Subramanyam R, Mahmoud M: Optical stylet and light guided equipment and techniques. Management of the Difficult Pediatric Airway. Jagannathan N, Fiadjoe J (eds.). Cambridge University Press, New York, NY, Page: 103-111, 2017.
2016
Francis L, Subramanyam R, Mohamed M: Severe spinal and chest deformity secondary to neurofibromatosis. Canadian Journal of Anaesthesia 63(4): 488-489, 2016.
Subramanyam R, Costandi A, Mahmoud M: Congenital lobar emphysema and tension emphysema. Journal of Clinical Anesthesia 29: 17-18, 2016.
Subramanyam R, Ishman S, Fleck R, Mahmoudm M: Video imaging of arytenoid prolapse. Canadian Journal of Anaesthesia 63(3): 350-351, 2016.
2015
Subramanyam R, Schaffzin J, Cudilo EM, Rao MB, Varughese A: Systematic review of risk factors for surgical site infection in pediatric scoliosis surgery. The Spine Journal 15(6): 1422-1431, 2015.
Cudilo EM, Varughese A, Mahmoud M, Carey P, Subramanyam R: Case report of transfusion-related acute lung injury in a pediatric spine surgical patient transfused leukoreduced red blood cells. Pediatric Anesthesia 25(12): 1294-1297, 2015.
Subramanyam R, Sadhasivam S: Plastic Surgery: General Considerations. Handbook of Essential Topics and Critical Incidents in Pediatric Anesthesia. Young DA, Olutoye OA (eds.). Cambridge University Press, United Kingdom, Page: 457-459, 2015.
Subramanyam R, Sadhasivam S: Critical Incidents: Hypercarbia. Handbook of Essential Topics and Critical Incidents in Pediatric Anesthesia. Young DA, Olutoye OA (eds.). Cambridge University Press, United Kingdom, Page: 19-23, 2015.
Subramanyam R, Sadhasivam S: Plastic Surgery: Craniofacial Reconstruction. Handbook of Essential Topics and Critical Incidents in Pediatric Anesthesia. Young DA, Olutoye OA (eds.). Cambridge University Press, United Kingdom, Page: 460-462, 2015.
2014
Engelhardt T, Crawford M, Subramanyam R, Lerman J: Plastics and reconstructive surgery. Textbook of Pediatric Anesthesia, 5th Edition. Cote CJ, Lerman J, Anderson B (eds.). Saunders, Philadelphia, Page: 697-711, 2014.
2013
Subramanyam R, Varughese A, Willging JP, Sadhasivam S: Future of pediatric tonsillectomy and perioperative outcomes. International Journal of Pediatric Otorhinolaryngology 77(2): 194-199, 2013.
2012
Faden M, Subramanyam R, Luginbuehl I: Perioperative management of pulmonary atresia with intact ventricular septum in a 5-year old. Annals Cardiac of Anaesthesia 15(2): 169-171, 2012.
2011
Ankichetty S, Nanadhakumar A, Subramanyam R, Venkatraghavan L: Acute atrial fibrillation in emergency surgery: Is it rare? Indian Journal of Anaesthesia 55(3): 287-289, 2011.
2010
Kataria S, Subramanyam R: Capnography to detect a leak in Bain's breathing system. Journal of Clinical Monitoring and Computing 24(1): 71-72, 2010.
2009
Subramanyam R, Wong DT: Effect of perioperative beta blockers on myocardial ischemia. Current Drug Targets 10(9): 833-841, 2009.
Arya VK, Bangaari A, Subramanyam R, Sharma A, Minz M, Rohit MK: Intraoperative myocardial ischemia during renal transplantation caused by anomalous origin of the right coronary artery. Annals of Cardiac Anaesthesia 12(1): 57-62, 2009.
Arya VK, Subramanyam R: Rings of blood guided arterial cannulation improves success rate. Annals of Cardiac Anaesthesia 12(2): 171-172, 2009.
Chakravarthy M, Krishnamoorthy V, Rangarajan D, Subramanyam R, Belur S: The nephroscope used as a therapeutic bronchoscope. Asian Cardiovascular & Thoracic Annals 17(1): 113-114, 2009.
Chakravarthy M, Narayan S, Govindarajan R, Subramanyam R, Jawali V: Early non invasive detection of hypercarbia in two cardiac surgical patients. Journal of Clinical Monitoring and Computing 23(1): 59-61, 2009.
Chakravarthy M, Vemgal P, Nijagal D, Subramanyam R, Reddy R, Jawali V: Left main bronchial lavage with normal saline under fluoroscopy improved pulmonary mechanics in a neonate following Damus-Kaye-Stansel procedure. Journal of Cardiovascular & Thoracic Anesthesia 23(5): 755-757, 2009.
Rakesh SV, Subramanyam R, Batra YK, Rao KLN: Cephalad migration of clonidine following intrathecal clonidine - bupivacaine mixture in a full term infant undergoing bilateral herniorraphy. Canadian Journal of Anaesthesia 56(8): 629-630, 2009.
Subramanyam R, Batra YK, Panda NB: Anaesthetic management of Ludwig's angina in pregnancy. International Journal of Obstetric Anesthesia 18(1): 96-97, 2009.
2008
16. Batra YK, Subramanyam R: Do infants need higher intrathecal fentanyl doses than older children? - Reply. Pediatric Anesthesia 18(12): 1248-1249, 2008.
Batra YK, Subramanyam R, Nishtala S, Grover G: Anesthetic implications of Carpenter syndrome (Acrocephalopolysyndactyly type II). Pediatric Anesthesia 18(12): 1235-1237, 2008.
Batra YK, Subramanyam R, Rao KLN: Severe stridor following the repair of H-type tracheoesophageal fistula in an 11 month infant. Acta Anaesthesiologica Belgica 59(4): 267-271, 2008.
Ramaswamy S, Puri GD, Subramanyam R: Endosulfan poisoning with intravascular hemolysis. Journal of Emergency Medicine 34(3): 295-297, 2008.
Subramanyam R, Panda NB, Panda N, Batra YK: Left handed laryngoscope: a new look to an old instrument. Acta Anaesthesiologica Belgica 59(3): 139-140, 2008.
Swati S, Panda NB, Subramanyam R: Management of pilot balloon assembly malfunction in an armored endotracheal tube in a child. Pediatric Anesthesia 18(4): 356-357, 2008.
2007
Batra YK, Subramanyam R: Effect of common herbal medicines on patients undergoing anaesthesia. Indian Journal of Anaesthesia 57(3): 184-192, 2007.
Batra YK, Gupta SK, Subramanyam R: Tracheomalacia due to short term ventilation after total hip arthroplasty in an adult with long standing goiter. Anesthesia & Analgesia 105(6): 1867-1868, 2007.
Batra YK, Subramanyam R: Regional anesthesia in a child with pulmonary arteriovenous malformation for a neurosurgical procedure. Pediatric Anesthesia 17(9): 910-912, 2007.
Batra YK, Subramanyam R: Subarachnoid Hemorrhage. Lancet 17: 369, 2007.
Batra YK, Subramanyam R: Phantom anaesthetic agent trace? Journal of Clinical Monitoring and Computing 21(13): 171-172, 2007.
Batra YK, Subramanyam R: Tribulations with filling Tec 7 vaporizer. Anesthesia & Analgesia 104(6): 1604, 2007.
Batra YK, Subramanyam R, Lokesh VC, Rao KLN: Spinal myoclonus associated with intrathecal bupivacaine and fentanyl in an infant. Canadian Journal of Anaesthesia 54(7): 587-588, 2007.
Batra YK, Subramanyam R, Menon P, Rao KLN: Intraoperative hyperglycemia in a child with primary pancreatic lymphoma. Anaesthesia & Intensive Care 35(6): 990-991, 2007.
Batra YK, Subramanyam R, Menon P, Saxena AK, Rao KLN: Anaesthetic management of a bilateral adrenal pheochromocytoma with paradoxical hypotension in a 11-yr-old child. Pediatric Anesthesia 17(3): 295-296, 2007.
Batra YK, Subramanyam R, Rao KLN: Anesthetic management of a ganglioneuroma presenting as pheochromocytoma. Pediatric Anesthesia 14(5): 479-483, 2007.
Batra YK, Subramanyam R, Samra T, Rao RLN: Octreotide-induced severe paradoxical hyperglycemia and bradycardia during subtotal pancreatectomy for congenital hyperinsulinism in an infant. Pediatric Anesthesia 17(11): 1117-1119, 2007.
Mahajan RP, Batra YK, Subramanyam R: Intravenous phenytoin and percutaneous arterial cannulation: The purple-glove syndrome. European Journal of Anaesthesiology 24(10): 900-901, 2007.
2006
Batra YK, Panda NB, Subramanyam R: Airway rescue with laryngeal mask airway during sclerotherapy of a large arteriovenous malformation in the oral and maxillofacial region. Pediatric Anesthesia 16(8): 894-895, 2006.
Batra YK, Sharma A, Subramanyam R: Total spinal anaesthesia following epidural test dose in an ankylosing spondylitic patient with anticipated difficult airway undergoing total hip replacement. European Journal of Anaesthesiology 23(10): 897-898, 2006.
Batra YK, Subramanyam R: Anesthesia implications of the catastrophic antiphospholipid antibody syndrome. Pediatric Anesthesia 16(10): 1090-1093, 2006.
Batra YK, Subramanyam R: Infusion pump for managing endotracheal tube cuff incompetence. Anesthesia & Analgesia 103(5): 1339, 2006.