Clinical Focus


  • Residency
  • Anesthesia

Professional Education


  • Residency, Stanford University School of Medicine, Anesthesia (2024)
  • Internship, Stanford University School of Medicine, Medicine (2021)
  • MD, Stanford University School of Medicine, Clinical Research (2020)
  • BA, Harvard College, Human Developmental and Regenerative Biology, Secondary in Global Health and Health Policy (2014)

All Publications


  • Application of the novel Nalu Neurostimulation System for peripheral nerve stimulation. Pain management Kalia, H., Pritzlaff, S., Li, A. H., Ottestad, E., Gulati, A., Makous, J., Chakravarthy, K. 2022

    Abstract

    Peripheral nerve stimulation is an established treatment modality for chronic neuropathic pain. Over the last decade, with the advent of innovative devices and delivery platforms, peripheral nerve stimulation has evolved from invasive open surgeries to image-guided, minimally invasive percutaneous procedures. The authors hereby present a novel device, the Nalu Neurostimulation System(Nalu Medical, CA, USA), which has established its advantages in providing predictable and reliable peripheral nerve stimulation therapy for chronic neuropathic pain management. This novel device is effective in treating chronic pain conditions such as post-herniorrhaphy pain syndrome, intercostal neuralgia, post-laminectomy syndrome, and complex regional pain syndromeand holds great promise for the treatment of peripheral neuropathic pain.

    View details for DOI 10.2217/pmt-2021-0050

    View details for PubMedID 35946308

  • Considerations in Permanent Implantation of Peripheral Nerve Stimulation (PNS) for Chronic Neuropathic Pain: An International Cross Sectional Survey of Implanters. Pain practice : the official journal of World Institute of Pain Li, A. H., Gulati, A., Leong, M. S., Aggarwal, A. K., Salmasi, V., Spinner, D., Ottestad, E. 2022

    Abstract

    INTRODUCTION: Novel minimally invasive short-term and long-term peripheral nerve stimulation (PNS) systems have revolutionized targeted treatment of chronic neuropathic pain. We present an international survey of PNS-implanting pain physicians to assess what factors they consider when offering permanent PNS.METHODS: This cross-sectional study consisted of a survey (Qualtrics) that was distributed to PNS-implanting physicians in a device supplier's entire email database on November 13, 2020, with 3 weeks of response time. Physicians' contact information in the form of their email addresses had been previously collected by the supplier upon device distribution with permission to use survey responses for research.RESULTS: Of 2,032 database physicians, 40 physicians representing 37 institutions responded to the survey. The most common application of PNS was mononeuropathic pain (57%). The most frequently targeted nerve was the suprascapular nerve (29%). 14% of physicians reported 81-100% of their implants were dual-lead. The representative physicians ranged broadly in their most frequently-targeted nerves. Although mononeuropathic pain was the most common indication for PNS, there was still varied response regarding other indications such as CRPS and post-surgical chronic pain.CONCLUSION: In context of a low response rate, identifying such factors can help update the prevailing treatment algorithm for interventional therapies, assist pain physicians in better identifying which patients are the best candidates for PNS, and inform future clinical trial design on PNS efficacy.

    View details for DOI 10.1111/papr.13105

    View details for PubMedID 35178863

  • Evidence for Continuing Buprenorphine in the Perioperative Period. The Clinical journal of pain Li, A. H., Schmiesing, C., Aggarwal, A. K. 2020

    Abstract

    OBJECTIVES: Given there are conflicting recommendations for the perioperative management of buprenorphine, we conducted a retrospective cohort study of our surgery patients on buprenorphine whose baseline dose had been preoperatively continued, tapered or discontinued.METHODS: With IRB approval, we reviewed charts from January 1, 2013 to June 30, 2016 of patients on buprenorphine who had received elective surgery at Stanford Healthcare. Our primary outcome of interest was the change in pain score, defined as mean postoperative pain score - preoperative pain score. We also collected data on patients' tapering procedure and any postoperative non-buprenorphine opioid requirements.RESULTS: Out of approximately 1200 patients on buprenorphine, 121 had surgery of which 50 were admitted and included in the study. Perioperative continuation of transdermal buprenorphine resulted in a lower change in pain score postoperatively (0.606±0.878) than discontinuation (4.83±1.23, P=0.012). Among sublingual patients, there was no difference in the change in pain score between those who were tapered to a non-zero dose versus discontinued (P=0.55). Continuation of sublingual buprenorphine resulted in fewer non-buprenorphine scheduled opioid prescriptions than its taper or discontinuation (P=0.028). Finally, tapers were performed with great variability in the tapering team and rate of taper.DISCUSSION: Based on our findings, we implemented a policy at our institution for the continuation of perioperative buprenorphine whenever possible. Our work reveals crucial targets for the education of perioperative healthcare providers and the importance of coordination amongst all perioperative services and providers.

    View details for DOI 10.1097/AJP.0000000000000858

    View details for PubMedID 32520814

  • Feasibility and Safety of Intrathoracic Biopsy and Repeat Biopsy for Evaluation of Programmed Cell Death Ligand-1 Expression for Immunotherapy in Non-Small Cell Lung Cancer RADIOLOGY Tsai, E. B., Pomykala, K., Ruchalski, K., Genshaft, S., Abtin, F., Gutierrez, A., Kim, H. J., Li, A., Adame, C., Jalalian, A., Wolf, B., Garon, E. B., Goldman, J. W., Suh, R. 2018; 287 (1): 326–32

    Abstract

    Purpose To determine feasibility and safety of biopsy and repeat biopsy for assessment of programmed cell death ligand-1 (PD-L1) status. Materials and Methods This retrospective analysis reviewed 101 patients who underwent transthoracic core needle biopsy for the KEYNOTE-001 (MK-3475) clinical trial of pembrolizumab, an antiprogrammed cell death-1 therapy for non-small cell lung cancer, from May 2012 to September 2014. Sixty-one male patients (mean age, 66.1 years; range 36-83 years) and 40 female patients (mean age, 66.8 years; age range, 36-90 years) were included. Data collected included population characteristics, treatment history, target location, size, and depth from pleura. Adequacy of the tissue sample for diagnostic testing and rates of biopsy-related complications were assessed. Statistical analysis was performed by using univariate and multivariate generalized linear models to determine significant risk factors for biopsy complications. Results A total of 110 intrathoracic biopsies were performed, and 101 (91.8%) were performed as repeat biopsies subsequent to a previous percutaneous or bronchoscopic biopsy or previous surgical biopsy or resection. More than 84.5% (93 of 110) of biopsies were performed in patients who had undergone previous local or systemic therapy. Specimens were adequate for evaluation of PD-L1 expression in 96.4% of biopsies. Procedure-related complications occurred in 28 biopsies (25.4%); pneumothorax was most common (22.7%). Overall mean number of core needle biopsy samples obtained was 7.9 samples. Conclusion Image-guided transthoracic core needle biopsy is an effective method for obtaining tissue for PD-L1 expression analysis. © RSNA, 2017.

    View details for DOI 10.1148/radiol.2017170347

    View details for Web of Science ID 000427992600040

    View details for PubMedID 29232184