Sam Tenhoeve

Mr. Sam Tenhoeve

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 December 2023 in Child's Nervous System
Verified
Journal Article
Open access
PDF file
MFMatthew C. Findlay
Matthew C. Findlay
STSam Tenhoeve
Sam Tenhoeve
STSkyler A. Terry
Skyler A. Terry
RIRajiv R. Iyer
Rajiv R. Iyer
DBDouglas L. Brockmeyer
Douglas L. Brockmeyer
VRVijay Ravindra
Vijay Ravindra
Purpose: Tethered cord syndrome (TCS) is characterized by abnormal attachment of the spinal cord neural elements to surrounding tissues. The most common symptoms include pain, motor or sensory dysfunction, and urologic deficits. Although TCS is common in children, there is a significant heterogeneity in outcomes reporting. We systematically reviewed surgical indications and postoperative outcomes to assess the need for a grading/classification system. Methods: PubMed and EMBASE searches identified pediatric TCS literature published between 1950 and 2023. Studies reporting surgical interventions, ≥ 6-month follow-up, and ≥ 5 patients were included. Results: Fifty-five studies representing 3798 patients were included. The most commonly reported non-urologic symptoms were nonspecific lower-extremity motor disturbances (36.4% of studies), lower-extremity/back pain (32.7%), nonspecific lower-extremity sensory disturbances (29.1%), gait abnormalities (29.1%), and nonspecific bowel dysfunction/fecal incontinence (25.5%). Urologic symptoms were most commonly reported as nonspecific complaints (40.0%). After detethering surgery, retethering was the most widely reported non-urologic outcome (40.0%), followed by other nonspecific findings: motor deficits (32.7%), lower-extremity/back/perianal pain (18.2%), gait/ambulation function (18.2%), sensory deficits (12.7%), and bowel deficits/fecal incontinence (12.7%). Commonly reported urologic outcomes included nonspecific bladder/urinary deficits (27.3%), bladder capacity (20.0%), bladder compliance (18.2%), urinary incontinence/enuresis/neurogenic bladder (18.2%), and nonspecific urodynamics/urodynamics score change (16.4%). Conclusion: TCS surgical literature is highly variable regarding surgical indications and reporting of postsurgical outcomes. The lack of common data elements and consistent quantitative measures inhibits higher-level analysis. The development and validation of a standardized outcomes measurement tool—ideally encompassing both patient-reported outcome and objective measures—would significantly benefit future TCS research and surgical management.

24 March 2025 in Journal of the National Medical Association
Verified
Journal Article
Closed access
KCKyril L. Cole
Kyril L. Cole
ACAshley M. Carter
Ashley M. Carter
CRClayton Rawson
Clayton Rawson
STSam Tenhoeve
Sam Tenhoeve
COCody Orton
Cody Orton
MKMichael Karsy
Michael Karsy

22 February 2025 in Neuro-Oncology Practice
Verified
Journal Article
Open access
EEEmma R Earl
Emma R Earl
COCody J Orton
Cody J Orton
STSam Tenhoeve
Sam Tenhoeve
CRClayton Rawson
Clayton Rawson
MKMichael Karsy
Michael Karsy
RJRandy Jensen
Randy Jensen
Background: Social determinants of health (SDOHs) may impact outcomes of patients with high-grade glioma (HGG). We examined the effect of rurality and socioeconomic status on treatment and survival of patients with newly diagnosed HGG. Methods: This retrospective analysis used 2 cohorts from the Utah Cancer Registry, including all patients diagnosed with HGG (2000-2019) (cohort 1) and all HGG patients who underwent surgery (2000-2020) (cohort 2). Patient demographics were evaluated descriptively. Kaplan-Meier curves, log-rank tests, and multivariable Cox regression analysis were used for survival analyses. Results: Patients from cohort 1 living in Frontier (n = 60), Rural (n = 363), and Urban (n = 1502) Utah traveled mean distances of 95.9 ± 69.7, 50.0 ± 66.5, and 10.7 ± 11.3 miles, respectively, for treatment (P < .001). Urban patients were diagnosed at a younger age (54.2 ± 20.2 years) than patients from Frontier (56.8 ± 20.3 years) and Rural (57.3 ± 17.6 years) areas (P < .019). Frontier patients were more likely to have lower income than Urban patients (30.7% vs 65.5%, P < .001). Rural patients (13.0 months [95% CI 11.2-14.8]) experienced shorter median survival than Urban patients (16 months [95% CI 14.3-17.7]) (P = .049). Among patients undergoing surgery, those with private insurance (54.2%, P < .001) and in high-income (60.2%, P = .007) and socioeconomic (60.4%, P = .005) quartiles received adjuvant chemotherapy and radiation more frequently. Conclusion: HGG patients from Frontier and Rural counties in Utah encountered greater SDOH barriers without experiencing delays in resection. Rural patients had shorter survival than Urban patients. Further investigation is needed to determine whether additional SDOHs (income and insurance status) may intersect and contribute to shorter survival and less access to adjuvant therapy.

26 September 2024 in Biologics
Verified
Journal Article
Open access
PDF file
STSam Tenhoeve
Sam Tenhoeve
MOMonica-Rae Owens
Monica-Rae Owens
RRRogina Rezk
Rogina Rezk
AHAbanob George Hanna
Abanob George Hanna
Brandon Lucke-WoldBrandon Lucke-Wold
Brandon Lucke-Wold
The integration of biologics in endovascularly treated intracranial aneurysms is a significant area of focus in an evolving field. By presenting the clinical relevance, pathogenesis, management (historical and current), and emerging biologics themselves, this work provides a broad overview of the current landscape of the biologics under current investigation. Growth factors, cytokines, and biologic-coated coils are compared and described as modalities to increase healing, aneurysm occlusion, and long-term recovery. These emerging biologics may increase the efficacy and durability of less invasive endovascular methods and potentially change standard practice with continued exploration.

30 January 2026 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
WMWhitney E. Muhlestein
Whitney E. Muhlestein
STSam Tenhoeve
Sam Tenhoeve
MMMark A. Mahan
Mark A. Mahan
Patients with spinal metastasis often benefit from surgical intervention for debulking to improve neurologic deficits, reduce spinal cord or root compression, and ameliorate pain. Traditionally, large, open fusions have been used to achieve adequate decompression of neural structures. These types of interventions are frequently associated with significant blood loss, prolonged hospitalizations, and increased risk of surgery-related complications, which can delay postoperative chemotherapy and radiation therapies. Endoscopic spine approaches allow access to the spinal cord and nerve roots with minimal soft tissue disruption, which has been shown to reduce risks associated with open surgery in other contexts. Furthermore, the smaller incision, reduced blood loss, ability to position incisions away from radiation fields, and lower risk profile in high-risk patients may provide an effective solution to spinal metastases in appropriately selected cases. Here, we present two cases of spinal metastases successfully managed with spinal endoscopy and recommend the consideration of this approach for similar scenarios.

25 July 2026 in Epilepsia
Verified
Journal Article
Open access
PDF file
STSam Tenhoeve
Sam Tenhoeve
NWNebras M. Warsi
Nebras M. Warsi
ALAllison M. Ludwick
Allison M. Ludwick
AGAdam C. Glaser
Adam C. Glaser
MRMarcella R. Ruppert‐Gomez
Marcella R. Ruppert‐Gomez
RBRobert J. Bollo
Robert J. Bollo
Objective: Use of neuromodulation strategies targeting thalamic nuclei, including deep brain stimulation (DBS) and responsive neurostimulation (RNS), for treatment of pediatric drug‐resistant epilepsy (DRE) is increasing, despite limited evidence for efficacy and safety. We present the initial results from the Comparative Multicenter Evaluation of Thalamic Neuromodulation for Treatment‐Resistant Epilepsy in Children consortium, which was created to study thalamic modulation in children with DRE. Methods: We performed a retrospective cohort study of children who underwent thalamic DBS or RNS for DRE between January 2015 and December 2024 across 12 centers. Primary outcomes were percent seizure reduction, Engel class, and responder rates (>50% seizure reduction) at 3, 6, and 12 months postoperatively. Secondary outcomes included antiseizure medications and surgical complications. Differences were quantified using ordinal logistic regression, generalized estimating equations with center clustering, and mixed‐effects models. Stratified analyses were performed by thalamic target (centromedian vs. anterior nucleus) and epilepsy diagnosis (Lennox–Gastaut syndrome, generalized, focal, and multifocal). Results: Among the 221 included patients (111 DBS, 110 RNS) included, DBS and RNS achieved comparable Engel scores and 12‐month responder rates, but different temporal trajectories were observed. There was a significant device × time interaction (odds ratio = 1.10/month, 95% confidence interval = 1.01–1.20, p = .04), with RNS response rates increasing from 26.9% at 3 months to 55.6% at 12 months (paired p < .001) but with DBS response rates reaching 41.7% at 3 months and remaining comparatively stable over time. DBS achieved significantly higher 12‐month seizure freedom (9.5% vs. 1.2%, p = .03). Neither thalamic target selection nor diagnosis predicted seizure outcome. Safety profiles were equivalent. Significance: This multicenter analysis provides pediatric‐specific data to inform surgical indications, device selection, and preoperative counseling. DBS and RNS were effective for treatment of pediatric DRE, with equivalent 12‐month seizure outcomes but different temporal trajectories. DBS provided earlier seizure control and higher rates of overall seizure freedom.