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Walt, Charles Van Der

0000-0002-7677-7778

Mayo Clinic

Mayo Clinic

Citations 5

INNV-26. Neuro-oncology anywhere (NOA) 242: Interim results from a pragmatic clinical trial evaluating telehealth versus in-person evaluations for individuals with glioma undergoing oral chemotherapy
Galloway, Taylor , Schultz, Sydney , Hughes, Heather, Steinmetz, Sue, Tauer, William, Mason, Charles W. , Huebert, Carey, Walt, Charles Van Der , Uhm, Joon H. , Campian, Jian , Kizilbash, Sani H. , Neth, Bryan J. , Ruff, Michael W. , Karbhari, Nishika , Breen, William G. , Lehrer, Eric J. , Kottschade, Becky, Mead‐Harvey, Carolyn , Geyer, Susan, Haddad, Tufia C. , Neth, Byran J. , Kizilbash, Sani H , Karbhari, Nishika , Sener, Uğur , Hughes, Heather, Mason, Charles, Walt, Charles Van Der , Burns, Terry C.

Neuro-Oncology | November 11, 2025 | Volume: 27 | Issue: Supplement_5 | Pages: v230-v230

10.1093/neuonc/noaf201.0915 Get It

Abstract BACKGROUND Access to in-person evaluations is challenging for patients with glioma due to disease-related disability and distance from specialized neuro-oncology centers. Telehealth is an alternative to in-person evaluations, but acceptability of and therapy compliance with this model has not been prospectively evaluated. METHODS In this single-arm non-randomized pragmatic clinical trial, we compared patient satisfaction with telehealth and in-person assessments among patients with glioma undergoing chemotherapy with temozolomide. Participants acted as their own controls, alternating between telehealth and in-person visits. Patient satisfaction with care delivered was evaluated by Press-Ganey surveys with Likert response scales (1-5, 1=very poor, 5=very good). A digital pill diary (DPD) was implemented to track chemotherapy compliance. RESULTS We accrued 30 patients (median age 59, 38% female) between October 2024 and May 2025. Half of the patients (n=15) reported a primary residence greater than 150 miles from our institution. Surveys from 25 participants were reviewed, with 17/25 completing one or more surveys following an in-person visit, and 21/25 completing one or more surveys following a telehealth visit. Overall average Press-Ganey scores were similar between the two visit modalities with high scores (telehealth=4.8; in-person=4.7). Median scores for specific modalities were similarly highly rated: likelihood of recommending practice to others (telehealth=5.0; in-person=5.0), concern the care provider showed (telehealth=5.0, in-person=4.7), provider’s discussion of treatment options (telehealth=5.0, in-person=5.0), provider effort to include patients in decision-making (telehealth=5.0, in-person=5.0). DPDs used to monitor treatment compliance indicated adherence to all prescribed doses of temozolomide in 75/79 cycles; the other 4 (of 79) treatment cycles were halted per provider instructions. CONCLUSION This interim assessment demonstrates feasibility of treating patients with similar patient satisfaction of care delivered between telehealth and in-person visits. The DPD was effective in tracking chemotherapy administration. Additional results including visit type preference and acute care utilization data are maturing.
Neuro-oncology anywhere 242: Pilot study evaluating telehealth and in-person assessments in patients with glioma receiving oral chemotherapy—Clinical trial in progress.
Galloway, Taylor , Schultz, Sydney , Hughes, Heather, Steinmetz, Sue, Tauer, William, Mason, Charles W. , Huebert, Carey, Mead‐Harvey, Carolyn , Walt, Charles Van Der , Geyer, Susan M. , Uhm, Joon H. , Campian, Jian , Kizilbash, Sani H. , Neth, Bryan J. , Breen, William G. , Lehrer, Eric J. , Burns, Terence, Kottschade, Becky, Haddad, Tufia C. , Neth, Byran J. , Kizilbash, Sani H , Sener, Uğur , Hughes, Heather, Mason, Charles, Walt, Charles Van Der

Journal of Clinical Oncology | May 28, 2025 | Volume: 43 | Issue: 16_suppl | Pages: No page available

10.1200/jco.2025.43.16_suppl.tps2099 Get It

TPS2099 Background: Gliomas are the most common primary central nervous system (CNS) malignancy in adults, accounting for 26.3% of all brain tumors. Care at high volume centers is associated with an overall survival benefit, but access to in-person evaluations can be challenging due to disease-related neurological disability and loss of income. Telehealth represents a convenient and efficient alternative to in-person evaluations, but acceptability and comparative safety of this care delivery modality has not been prospectively evaluated among glioma patients undergoing chemotherapy. Methods: This single-arm non-randomized pragmatic clinical trial evaluates patient satisfaction with, and safety of video-enabled telehealth assessments compared to in-person evaluations for patients with glioma undergoing temozolomide chemotherapy. The study includes adult patients with a diagnosis of glioma requiring adjuvant temozolomide chemotherapy. Participants act as their own controls, alternating between in-person and telehealth assessments while undergoing chemotherapy dosed per standard of care. Monitoring labs are completed locally and transmitted electronically. For participants without access to Wi-Fi or a device (e.g. mobile phone or computer), cellular-enabled tablet devices are provided to facilitate appointments and completion of electronic study components. All participants who travel to in-person appointments are reimbursed for travel expenses. The primary outcome measure is patient satisfaction with care delivered, as measured by institutional Press-Ganey survey scores obtained following telehealth and in-person assessments. A key secondary outcome measure is completion rate of planned oral chemotherapy, tracked using a digital pill diary incorporated into our institutional electronic health record. The digital diary allows real-time tracking of chemotherapy adherence and adverse events experienced by participants. Other secondary outcomes include acute care utilization days following telehealth and in-person visits (defined as emergency department evaluations and days of inpatient stay), neurologic disability as measured by the Neurologic Assessment in Neuro-Oncology (NANO) scale, and disease related quality of life measured by the EORTC QLQ-C30. All participant surveys are self-reported and completed electronically. This decentralized pragmatic clinical trial provides unprecedented, prospective real-world data on utilization of telehealth services compared to in-person visits for patients undergoing chemotherapy for glioma. We expect the data generated to inform the design and conduct of future decentralized interventional neuro-oncology trials. NCT06625047 opened for enrollment in October 2024, 16 of 30 intended participants were accrued as of January 2025. Clinical trial information: NCT06625047 .
Clinical Utility of Neurophysiologic Classification (and Declassification) of Myoclonus
Callister, Marcus N. , Klanderman, Molly , Stockard, Alyssa , Walt, Charles Van Der , Peña, Ashley B. , Caviness, John N., Klanderman, Molly C, Van der Walt, Charles, Stockard, Alyssa , Walt, Charles Van Der

Movement Disorders | October 14, 2024 | Volume: 39 | Issue: 12 | Pages: 2242-2248

10.1002/mds.30022 Get It

Abstract Background Movement clinical neurophysiology studies can distinguish myoclonus, tremor, and other jerky movements; however, there has been limited demonstration of their real‐world clinical impact. Objective The aim was to investigate movement study utility in clarifying movement classification and guiding patient management. Method A retrospective study of myoclonus‐related movement studies was performed. Results Of 262 patients referred for consideration of myoclonus, 105 (40%) had myoclonus, 156 (59%) had no myoclonus (the commonest alternative classifications were functional jerks and tremor), and 1 was uncertain. An additional 29 studies identified myoclonus without prior clinical suspicion. A total of 119 of 134 (89%) myoclonus patients had a specific neurophysiologic subtype identified, most commonly cortical (64, 54%). Diagnostic differential narrowed in 60% of patients, and a new diagnosis was made in 42 (14%) patients. Medication changes were made in 151 patients (52%), with improvement in 35 of 51 (67%) with follow‐up. Conclusions Movement studies effectively determined movement classification and identified unsuspected myoclonus, leading to changes in diagnosis and management. © 2024 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
Timing of Ureteral Stent Removal After Ureteroscopy on Stent-Related Symptoms: A Validated Questionnaire Comparison of 3 and 7 Days Stent Duration
Heidenberg, Daniel , Nauheim, Jennifer, Grant, Campbell , Mi, Lanyu , Walt, Charles Van Der , Mufarrij, Patrick, Heidenberg, Daniel J, Van der Walt, Charles

Journal of Endourology | October 27, 2023 | Volume: 38 | Issue: 1 | Pages: 82-87

10.1089/end.2023.0189 Get It

Clinical Practice Evolvement for Post-Operative Prostate Cancer Radiotherapy—Part 1: Consistent Organs at Risk Management with Advanced Image Guidance
Laughlin, Brady S. , Lo, Stephanie, Vargas, Carlos , Walt, Charles Van Der , Tinnon, Katie, Beckett, Mason, Hobbis, Dean , Wong, William W. , Keole, Sameer R., Rwigema, Jean‐Claude M. , Yu, Nathan Y. , Clouser, Edward , Van der Walt, Charles, Schild, Steven E. , Clouser, Edward Lee , Laughlin, Brady S , DeWees, T.A. , Rong, Yi

Cancers | December 21, 2022 | Volume: 15 | Issue: 1 | Pages: 16

10.3390/cancers15010016 Get It

Purpose: Post-operative prostate cancer patients are treated with full bladder instruction and the use of an endorectal balloon (ERB). We reassessed the efficacy of this practice based on daily image guidance and dose delivery using high-quality iterative reconstructed cone-beam CT (iCBCT). Methods: Fractional dose delivery was calculated on daily iCBCT for 314 fractions from 14 post-operative prostate patients (8 with and 6 without ERB) treated with volumetric modulated radiotherapy (VMAT). All patients were positioned using novel iCBCT during image guidance. The bladder, rectal wall, femoral heads, and prostate bed clinical tumor volume (CTV) were contoured and verified on daily iCBCT. The dose-volume parameters of the contoured organs at risk (OAR) and CTV coverage were assessed for the clinical impact of daily bladder volume variations and the use of ERB. Minimum bladder volume was studied, and a straightforward bladder instruction was explored for easy clinical adoption. Results: A “minimum bladder” contour, the overlap between the original bladder contour and a 15 mm anterior and superior expansion from prostate bed PTV, was confirmed to be effective in identifying cases that might fail a bladder constraint of V65% <60%. The average difference between the maximum and minimum bladder volumes for each patient was 277.1 mL. The daily bladder volumes varied from 62.4 to 590.7 mL and ranged from 29 to 286% of the corresponding planning bladder volume. The bladder constraint of V65% <60% was met in almost all fractions (98%). CTVs (D90%, D95%, and D98%) remained well-covered regardless of the absolute bladder volume daily variation or the presence of the endorectal balloon. Patients with an endorectal balloon showed smaller variation but a higher average maximum rectal wall dose (D0.03mL: 104.3% of the prescription) compared to patients without (103.3%). Conclusions: A “minimum bladder” contour was determined that can be easily generated and followed to ensure sufficient bladder sparing. Further analysis and validation are needed to confirm the utility of the minimal bladder contour. Accurate dose delivery can be achieved for prostate bed target coverage and OAR sparing with or without the use of ERB.