Citations

Background & Aims: We examined treatment patterns and clinical outcomes in a contemporary cohort of children with newly diagnosed inflammatory bowel disease (IBD) in a large, commercially insured U.S. population. Methods: Using the OptumLabs® Data Warehouse, we created an inception cohort of physician-diagnosed IBD in children aged 6–17 years between 2007–23. We examined cumulative incidence of hospitalization, surgery, safety events, and medication use in patients with Crohn's disease (CD) and ulcerative colitis (UC), overall and stratified by diagnostic era, race and ethnicity, sex, and age at diagnosis. Results: Among 787 children with newly diagnosed CD (age at diagnosis, 13.4±2.9y; 57% male; 82% White, 5% Black, 7% Hispanic) followed over mean 4.6±3.0y, 5-year risk of IBD-related hospitalization and major surgery was 30% and 10%, respectively. In children diagnosed in 2019–23, 1-year cumulative use of corticosteroids and advanced therapy was 46% and 75%, respectively; advanced therapy use increased significantly over time (aHR, 3.43 [95% CI, 2.71–4.32] for 2019–23 vs. 2007–12), while corticosteroid use declined (0.67 [0.53–0.84]). Risk of IBD-related hospitalization was lower in children diagnosed between 2019–23 (0.65 [0.43–0.97]) compared with those diagnosed between 2007-12; surgical risk did not decline significantly, with confidence intervals compatible with a clinically meaningful reduction. Among 399 children with newly diagnosed UC (age at diagnosis, 14.0±3.0y; 53% male; 78% White, 5% Black, 7% Hispanic) followed over 4.5±3.0y, 5-year risk of IBD-related hospitalization and colectomy was 36% and 8%, respectively. Advanced therapy use increased significantly over time (4.46 [2.85–6.98] for 2019–23 vs. 2007–12), with no significant change in hospitalization or surgical risk across eras. No consistent racial and ethnic, age, or sex differences in advanced therapy use or clinical outcomes were identified in either CD or UC. Conclusions: In a contemporary cohort of commercially insured children with newly diagnosed IBD, early advanced therapy use has increased markedly over time. Surgical risk did not decline significantly in either disease; however, the study was not powered to exclude a clinically meaningful reduction, and these findings are hypothesis-generating rather than conclusive.

Background African American adults experience a disproportionate burden of dementia, shaped by structural and clinical factors that remain unclear. Objective To quantify associations between multimorbidity, polypharmacy, and cognition in the context of neighborhood disadvantage. Methods This study is a cross-sectional analysis of 348 African American adults aged 45–92 years (mean 64.3 years; 73.6% female) from the Aging Research Characterizing Health Exposome via Social drivers (ARCHES) cohort. Comorbidity burden was assessed using a modified Charlson Comorbidity Index (CCI), polypharmacy as ≥5 medications, and neighborhood disadvantage using the Area Deprivation Index (ADI). Linear regression estimated associations with a Preclinical Alzheimer’s Cognitive Composite (PACC). The polypharmacy model included modified CCI as a covariate, and effect modification by ADI was assessed using an interaction term between polypharmacy and ADI. Results Higher modified CCI was associated with lower cognitive performance (B = −0.071; 95% CI: −0.130, −0.012). Polypharmacy was not independently associated with cognition after modified CCI adjustment (B = −0.081; β = −0.057; p = 0.257). No significant ADI interaction was found (p = 0.064).

ABSTRACT Background Intrathecal opioids are widely used for postoperative analgesia in pediatric spine surgery, but optimal dosing remains undefined. We evaluated the relationship between intrathecal hydromorphone (ITH) dose, analgesia, and adverse effects in adolescents undergoing posterior spinal fusion (PSF). Methods In this single‐center, prospective, blinded dose‐escalation study using a biased‐coin up‐down sequential allocation design, patients aged 10–17 years undergoing PSF received ITH starting at 3.5 mcg kg −1 , with dose adjustments based on analgesic response (range 2.0 to 7 mcg kg −1 with a maximum of 400 mcg). The primary outcome was maximum postoperative pain within 18 h. Secondary outcomes included pain burden (area under the curve), 24‐h systemic opioid consumption (oral morphine equivalents [OME], excluding ITH), adverse effects, supplemental diazepam use, and rescue opioid use. Associations between dose and outcomes were assessed using Spearman correlation and logistic regression. Results Twenty‐seven patients completed the study. The median ITH dose received was 5.5 mcg kg −1 (IQR, 3.5–7.0), with a median absolute dose of 370 mcg (IQR, 180–400). No significant association was observed between ITH dose and maximum pain ( r = 0.16, p = 0.41), pain burden ( r = 0.32, p = 0.10), or 24‐h OME ( r = 0.13, p = 0.52). ITH dose was not significantly associated with the time to rescue opioid (HR = 1.24; 95% CI 0.68–2.25; p = 0.485) or diazepam (HR = 1.10; 95% CI 0.72–1.71; p = 0.655). Adverse respiratory events occurred at doses > 5 mcg kg −1 without improved analgesia. Conclusions Increasing ITH dose was not associated with improved analgesia or change in supplemental opioid or diazepam use. Doses > 5 mcg kg −1 were associated with adverse respiratory effects. These findings support conservative dosing strategies and underscore the need to define the minimum effective dose in pediatric populations.

ABSTRACT Objective To estimate the pooled prevalence of lymphedema among adults with mucosal head and neck cancer treated with radiation therapy. Data Sources PubMed, Embase, Scopus, and Cochrane Library. Review Methods A comprehensive literature search of PubMed, Embase, Scopus, and Cochrane Library (2000–2025) identified cohort, case series, cross‐sectional, and clinical trial studies reporting lymphedema after radiotherapy for head and neck cancer. Logit‐transformed lymphedema prevalence was pooled using a DerSimonian‐Laird random‐effects model with Hartung‐Knapp‐Sidik‐Jonkman variance correction; statistical heterogeneity was evaluated using I 2 . This review was not prospectively registered. Results A total of 26 studies ( n = 3133 patients) met inclusion criteria. The pooled prevalence of lymphedema was 49% (95% CI, 36%–62%), with considerable heterogeneity (I 2 = 94%). Subgroup analyses yielded a pooled prevalence of 37% (12%–71%) for external and 45% (31%–60%) for internal lymphedema. Among studies reporting severity‐graded data, the pooled prevalence of clinically significant (grade ≥ 2) lymphedema was 32% (14%–59%). Lymphedema definitions and assessment methods varied across the included studies, most commonly employing clinical grading. Methodological quality was mixed, reflecting the predominantly retrospective, single‐arm nature of the available evidence. Overall certainty of evidence was very low. Funnel plot inspection and Egger's test suggested small‐study effects ( p = 0.06). Conclusion Lymphedema affects nearly half of patients following radiation for head and neck cancer. These findings may support routine surveillance, early identification, and timely referral for lymphedema management within survivorship care pathways. Future prospective studies should adopt standardized definitions and outcome measures to refine risk estimates and guide prevention strategies. Level of Evidence N/A.

Abstract Background Prostate artery embolization (PAE) requires precise visualization of complex pelvic arterial anatomy and can be aided by advanced vessel navigation tools. Photon counting detector (PCD) CT provides simultaneous ultra‐high resolution and material‐specific imaging, potentially improving automatic vessel tracing workflow for procedural planning and guidance. Purpose To identify, within a PCD‐CT workflow, the reconstruction that provides the most robust and consistent automatic vessel tracing for pre‐procedural PAE planning. Methods Ten patients underwent PCD‐CT angiography of the prostate arteries in ultra‐high‐resolution mode. Four reconstruction approaches were evaluated: conventional reconstructions with (1) standard of care kernel and (2) sharper kernel (Bv64), along with (3) monoenergetic 50 keV, and (4) iodine map spectral results. Using commercial embolization guidance software, three vessels were manually traced for each patient to establish ground truth segmentation. Subsequently, automatic vessel traces were generated using identical start/end points as the ground truth. Root mean squared error (RMSE) between automatic traces and ground truth was used to quantify tracing accuracy. Results Comparing individual traces, iodine maps demonstrated consistency with median RMSE of 0.7 mm (0.4 mm interquartile range (IQR)) versus 0.7 mm (12.5 mm IQR), 1.5 mm (14.7 mm IQR), and 0.8 mm (6.7 mm IQR) for Bv56, Bv64, and 50 keV reconstructions, respectively. Iodine maps produced fewer outliers, with 13.3% of traces and 40.0% of patients having one or more traces exceeding 5 mm RMSE, compared with 26.7%–36.7% of traces and 60.0%–80.0% of patients for the other reconstructions. Conclusions Material‐specific iodine reconstructions from PCD‐CT yield more robust automatic vessel tracing for PAE planning, offering a workflow‐compatible solution requiring minimal protocol modifications.

BACKGROUND Spindle cell oncocytoma (SCO) is a rare, nonadenomatous sellar tumor that often mimics pituitary adenomas both radiographically and clinically, making diagnosis and treatment difficult. OBSERVATIONS A 67-year-old male presented with fatigue and weakness, with MRI revealing an enhancing sellar mass with suprasellar extension and laboratory findings consistent with panhypopituitarism. He underwent endoscopic endonasal resection, which revealed a fibrous, highly vascular tumor adherent to surrounding tissue, consistent with SCO on final pathological analysis. Gross-total resection (GTR) was achieved, and the patient has been monitored regularly with no signs of recurrence at 9 months postoperatively. LESSONS SCOs are an exceedingly rare entity often indistinguishable from pituitary adenomas preoperatively, yet their intraoperative hypervascularity and fibrous texture can complicate resection and predispose patients to recurrence. Accurate identification of these tumors and GTR when possible are essential to appropriate treatment. https://thejns.org/doi/10.3171/CASE26333

ABSTRACT Background and Aims Autoimmune hepatitis is an immune‐mediated liver disease characterized by chronic inflammation and progressive fibrosis. Tissue‐resident memory T cells mediate organ‐specific immunity, but their role in autoimmune hepatitis remains poorly understood. We characterized tissue‐residency‐associated T‐cell populations and their cytokine profiles, assessed associations with disease severity and determined whether these signatures were reflected in peripheral blood. Methods Paired blood and liver samples were obtained from 19 patients with autoimmune hepatitis. Comparator cohorts included 20 patients with metabolic dysfunction‐associated steatotic liver disease and 20 surgical patients providing non‐inflamed adjacent non‐tumorous liver tissue. Multiparameter flow cytometry assessed tissue‐residency markers, T‐cell differentiation and cytokine production after polyclonal stimulation. Immune phenotypes were correlated with histological and clinical parameters. Results Autoimmune hepatitis was associated with compartment‐specific remodelling of T‐cell differentiation states and intrahepatic enrichment of CD8 + T cells expressing CD69, CD103 and CXCR6 relative to paired blood and comparator liver tissues. Intrahepatic CD8 + T cells exhibited an interferon‐γ‐dominant cytokine profile, whereas CD4 + T cells showed broader interferon‐γ‐, interleukin‐17A‐ and interleukin‐4‐associated responses. Despite the enrichment of tissue‐residency‐associated CD8 + T cells, cytokine‐producing CD8 + T‐cell populations with and without a tissue‐resident memory phenotype contributed comparably to the hepatic T‐cell compartment. Tissue‐residency‐associated phenotypes correlated positively with Ishak fibrosis stage, whereas the frequency of interferon‐γ‐positive intrahepatic CD8 + T cells correlated inversely with fibrosis. Conclusions Autoimmune hepatitis was characterized by intrahepatic accumulation of phenotypically distinct and functionally active CD8 + tissue‐resident memory T cells associated with fibrosis. This immune profile was not reflected in paired blood, indicating compartmentalized hepatic immune remodelling.