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6413 citation(s) found for "Su, Christopher".

Interrater Reliability of a Suture Assessment Tool in Family Medicine Training
Patel, Khyati H., Dargel, Carmen, Aguayo-Ortega, Ricky A., Boswell, Christopher L. , Patel, Khyati, Stacey, Stephen K , Dargel, Carmen

Mayo Clinic

PRiMER | February 2, 2026 | Volume: 10 | Issue: No issue available | Pages: No page available

10.22454/primer.2026.615323 | PMID 41883932 Get It

Introduction: Procedural competence is essential to clinical practice, yet assessment of technical skills such as suturing remains highly variable and often relies on subjective evaluations. While tools with limited validity evidence exist in surgical specialties, their use in family medicine is limited. This study evaluated the interrater reliability of a suture assessment tool developed by Sundhagen et al when used by family medicine faculty to evaluate the simple interrupted suturing skills of family medicine residents. Methods: In this cross-sectional reliability study, 15 core faculty members from four family medicine residency programs were recruited to evaluate the simple interrupted suturing skills of 20 family medicine residents using a modified suture assessment tool developed by Sundhagen et al. Intraclass correlation coefficients were used to evaluate interrater reliability. Light’s κ was calculated for each question. Results: A total of 15 evaluators assessed 20 videos of resident suturing performance. The Light’s κ estimates ranged from 0.11 to 0.50, indicating slight to moderate agreement. None of the items reached the threshold for substantial agreement (κ≥0.61). Conclusions: The modified Sundhagen suture assessment tool demonstrated fair to moderate reliability when used to evaluate family medicine residents. While the level of agreement limits the tool’s effectiveness for standardized summative assessment, the tool may still offer value as a structured framework for formative feedback. Future studies may improve reliability through refined rater training, behaviorally anchored scoring criteria, and the use of visual exemplars.
Long‐term amyloid PET and MRI outcomes in a menopausal hormone therapy trial
Kantarci, Kejal, Tosakulwong, Nirubol , Fought, Angela J. , Schwarz, Christopher G, Kendall-Thomas, June, Min, Paul H., Lowe, VJ, Jack, Clifford R, Kapoor, Ekta, Fields, Julie A. , Bailey, Kent R., James, Taryn T. , Faubion, Laura L. , Ra, Lobo, Manson, JoAnn E, Pal, Lubna, Hammers, Dustin B, Malek-Ahmadi, Michael, Cedars, Marcelle I., Naftolin, Frederick N, Santoro, N., Miller, V. M., Harman, Sherman, Gleason, Carey E, Min, Hoon‐Ki , Min, Paul, Min, Hoon-Ki Paul , Kantarci, Kejal , Kara, Firat , Schwarz, Christopher G. , Senjem, Matthew L. , Kendall‐Thomas, June, Jack, Clifford R. , Kapoor, Ekta , Manson, JoAnn E. , Pal, Lubna , Hammers, Dustin B , Brinton, Eliot A. , Malek‐Ahmadi, Michael , Cedars, Marcelle I. , Naftolin, Frederick , Harman, S. Mitchell , Dowling, N. Maritza , Gleason, Carey E.

Mayo Clinic

Alzheimer's & Dementia | January 31, 2026 | Volume: 22 | Issue: 2 | Pages: No page available

10.1002/alz.71067 | PMID 41618732 Get It

Abstract INTRODUCTION Associations of short‐term use of menopausal hormone therapy (mHT) with Alzheimer's disease (AD) and structural magnetic resonance imaging (MRI) biomarkers were investigated 10 years after an mHT trial. METHODS Recently menopausal women with good cardiovascular health were randomized to oral conjugated equine estrogens (oCEE) or transdermal 17β‐estradiol (tE2) and micronized progesterone, or placebo for 4 years. Amyloid beta (Aβ) on positron emission tomography, hippocampal atrophy, and dorsolateral prefrontal cortex thickness on MRI were assessed 10 years after completion of the mHT trial ( n = 266). RESULTS Aβ and structural MRI biomarkers were not different in the oCEE and tE2 groups compared to placebo. Apolipoprotein E ε4 status did not modify the findings. DISCUSSION There was no evidence of adverse effects or benefits associated with 4 years of use of oral or transdermal mHT on Aβ and structural MRI biomarkers in relatively healthy women, 10 years after mHT. Findings support the long‐term safety of short‐term use of mHT on brain health. CLINICAL TRIALS REGISTRATION NCT00154180 Kronos Early Estrogen Prevention Study (KEEPS) Highlights There were no menopausal hormone therapy–related adverse effects or benefits on amyloid beta and magnetic resonance imaging biomarkers in the long term. Apolipoprotein E ε4 carrier status did not modify these findings. Findings align with neutral cognitive and cerebrovascular outcomes in this cohort.
Recommendations for Advanced Practice Provider Postgraduate Training Programs in the United States: A Work Product of the Advanced Practice Provider Postgraduate Training Task Force of the Society of Critical Care Medicine
Ricker, Melissa, Abide, Aimee, Bakshi, Vishal, Bane, Tina, Bhullar, Simrit K., Byrd, Cindy , Fuller, Todd E., Gunville, Cameron, Hogan, Brett , Nugent, Katherine Lyn, Pandya, Komal , Peacock, Sarah, Pisa, Michael, Meissen, Heather H., McLaughlin, Diane , Boling, Bryan , Farley, Thomas, Newman, Christopher, Nugent, Katherine Lyn, Peacock, Sarah, Meissen, Heather

Mayo Clinic

Critical Care Medicine | January 30, 2026 | Volume: 54 | Issue: 4 | Pages: 825-835

10.1097/ccm.0000000000007061 | PMID 41615242 Get It

OBJECTIVES: The overall goal of this work is to discuss the various topics associated with critical care advanced practice provider (APP) postgraduate training programs and provide resources for new, developing and existing programs. DESIGN: Three rounds of voting until consensus achieved. SETTING: Electronic surveys, followed by virtual meeting. SUBJECTS: Critical care APPs, physicians, a pharmacist, and a nurse were also included to ensure multidisciplinary representation. All subjects resided and practiced in the United States with a history of education scholarship or post-graduate training leadership. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: The workgroup included 14 APPs (ten nurse practitioners and four physician associates), three physicians, one pharmacist, and one registered nurse from 14 institutions across the United States. The workgroup identified six areas of concentration: administration, audience, program structure, curriculum, procedural competence, and accreditation. A survey was generated and employed in three rounds. The first two rounds of voting were completed anonymously, the third round was completed as a live meeting until consensus recommendations, defined as 75% agreement or more, were achieved. CONCLUSIONS: Expert consensus was used to generate consensus recommendations for critical care postgraduate training programs based upon 3 rounds of voting.
Abstract WP127: Sex-Specific Differences in Presentation and Outcomes after Cervical Artery Dissection
Sidebottom, Christian, Omran, Setareh Salehi , Yaghi, Shadi, Shu, Ligi, Lee, Conner, Crandell, Ross, Lester, Evan, Henninger, Nils, Katheryna, Antonenko, Khan, Muhib, Mallick, Dania, Rothstein, Aaron, Khazaal, Ossama , Engelter, Stefan T, Traenka, Christopher , Gandhi, Preet , Metanis, Issa, Leker, Ronen, Renneberg, Regina Von, Guo, Xiaofan, Ghannam, Malik, AlMajali, Mohammad, Samaniego, Edgar A., Fonseca, Ana, Cruz, Diana , Romoli, Michele, Keser, Zafer, Marialuisa, Zedde, Bakradze, Ekaterina, Velez, Faddi Saleh, Penckofer, Mary , Siegler, J, Zubair, Adeel , Marto, Joao Pedro, Klein, Piers, Nguyen, Thanh N., Khasiyev, Farid, Elnazeir, Marwa , Elangovan, Cheran, Krishnaiah, Balaji , Henninger, Nils , Henninger, Nils , Muppa, Jayachandra , Gunduz, Muhammed Enes , Heldner, Mirjam R. , Nehme, Ahmad , Khan, Muhib , Rothstein, Aaron , Kaufmann, Josefin E. , Engelter, Stefan T. , Metanis, Issa , Leker, Ronen R , Shahripour, Reza Bavarsad , Ghannam, Malik , Samaniego, Edgar A , Cruz, Diana, Romoli, Michele , Keser, Zafer , Grory, Brian Mac , Bakradze, Ekaterina , Velez, Faddi G. Saleh , Siegler, James E. , Willey, Joshua , Marto, João Pedro , Klein, Piers , Nguyen, Thanh N. , Simpkins, Alexis N. , Elangovan, Cheran

Mayo Clinic

Stroke | January 29, 2026 | Volume: 57 | Issue: Suppl_1 | Pages: No page available

10.1161/str.57.suppl_1.wp127 Get It

Background and Objectives: Cervical artery dissection (CeAD) is a leading cause of ischemic stroke in younger adults, yet sex-specific variations in its clinical presentation, imaging characteristics, and outcomes remain underexplored. We aimed to evaluate these differences using data from a large, multicenter registry. Methods: We analyzed data from the STOP-CAD registry, which includes patients with radiologically confirmed non-traumatic CeAD enrolled between 2015 and 2021 across multiple centers. Clinical and imaging characteristics were compared between men and women using multivariable logistic regression. Outcomes assessed included ischemic stroke recurrence at 180 days, excellent functional outcome (modified Rankin Scale [mRS] 0–1) at 90 days, symptomatic intracerebral hemorrhage (sICH), and mortality. Results: Among 4,023 patients with CeAD, 1,783 (44.6%) were women. Compared to men, women were younger (median age: 42 vs 50 years), more likely to have a history of migraine (26.9% vs 8.3%) and connective tissue disorders (14.3% vs 5.8%), and presented more frequently with non-ischemic symptoms such as headache, neck pain, or tinnitus (adjusted OR [aOR] 2.0; 95% CI, 1.8–2.3; p<0.001). Women had significantly higher odds of vertebral artery dissection (OR, 1.3; 95% CI, 1.2-1.5; p<0.001), multivessel involvement (OR, 2.1; 95% CI, 1.7-2.5; p<0.001), and pseudoaneurysm formation (OR, 1.3; 95% CI, 1.1-1.6; p=0.003). Despite these differences, there was no significant sex-based difference in key clinical outcomes: excellent functional recovery at 90 days (OR 0.94; 95% CI 0.76-1.15 p=0.542), ischemic stroke recurrence at 180 days (OR 0.56 CI 0.23-1.3 p=0.213), or mortality (OR 0.83; 95% CI 0.47-1.48, p=0.529). Conclusion: In this large international cohort, we observed women with CeAD were younger, more likely to present with non-ischemic symptoms with distinct imaging features. These underscore the need for heightened clinical suspicion of CeAD in women presenting with atypical symptoms, even in the absence of ischemic deficits or conventional vascular risk factors, and suggest that sex-specific phenotyping may enhance diagnostic accuracy and early management.
Abstract WP047: Incidental Cerebral Aneurysms in Patients with Cervical Artery Dissection
Stretz, Christoph, Shu, Liqi , Mandel, Daniel M, Samaniego, Edgar A., Nguyen, Thanh N., Liebeskind, D, Guerrero, Christopher Leon, Arnold, Marcel, Omran, Setareh Salehi , Sousa, João André, Khan, Muhib, Rothstein, Aaron, Engelter, Stefan T, Sousa, Diana Aguiar de, FIELD, Thalia, Leker, Ronen, Dantu, Vishnu , Choi, Richard , Ghannam, Malik, Poppe, Alexandre, Romoli, Michele, Keser, Zafer, Frontera, Jennifer, Zedde, Marialuisa, MacGrory, Brian, Kasab, Sami Al, Bakradze, Ekaterina, Rodrigo-Gisbert, Marc, Velez, Faddi Saleh, Vishnu, Venugopalan, Yaddanapudi, Sridhara , Zubair, Adeel , Marto, Joao Pedro, Klein, Piers, Martins, Sheila, Krishnaiah, Balaji , Elangovan, Cheran, Qureshi, Abid, Mannino, Marina, Sarvath, Mohammed, Kass-Hout, T, Sen, Shayak, Elnazeir, Marwa , Furie, Karen, Yaghi, Shadi, Field, Thalia S. , Sousa, Diana Aguiar de , Field, Thalia S , Aguiar de Sousa, Diana , Stretz, Christoph , Samaniego, Edgar A , Leon Guerrero, Christopher R , Heldner, Mirjam R. , Arnold, Marcel , Nehme, Ahmad , Khan, Muhib , Rothstein, Aaron , Engelter, Stefan T. , Leker, Ronen R , Ghannam, Malik , Fonseca, Ana Catarina , Romoli, Michele , Keser, Zafer , Zedde, Marialuisa , Kasab, Sami Al , Bakradze, Ekaterina , Rodrigo‐Gisbert, Marc , Velez, Faddi G. Saleh , Vishnu, Venugopalan, Marto, João Pedro , Klein, Piers , Elangovan, Cheran , Mannino, Marina , VASILOPOULOU, SOFIA, Kass‐Hout, Tareq , Khan, Fahad

Mayo Clinic

Stroke | January 29, 2026 | Volume: 57 | Issue: Suppl_1 | Pages: No page available

10.1161/str.57.suppl_1.wp047 Get It

Background: Patients with cervical artery dissection (CAD) have a higher prevalence of cerebral aneurysms, likely due to underlying vasculopathies. Understanding risk factors and outcomes in this population may inform screening and management strategies. Methods: We conducted a post-hoc analysis of the STOP-CAD study, a multicenter international registry of patients with non-major trauma-related CAD across 63 centers. Cerebral aneurysms were identified based on medical history and intracranial vascular imaging obtained for dissection diagnosis. We compared demographic, clinical, laboratory, and imaging characteristics between patients with and without aneurysms. Variables with p<0.05 in univariate analysis were entered into a multivariable binary logistic regression to identify independent predictors. Clinical outcomes including ischemic stroke and symptomatic intracranial hemorrhage at follow-up were compared between both groups. Results: Out of 4023 patients included in the STOP-CAD study, 116 (2.9%) had at least one incidental cerebral aneurysm. In adjusted binary logistic regression, patients with cerebral aneurysm were more likely to have a history of migraine (aOR 1.78 95% CI 1.15-2.75, p=0.009), history of hypertension (aOR 1.65 95% CI 1.12-2.43, p = 0.010), known connective tissue disorder (aOR 3.47 95% CI 1.71-7.03), history of dissection (aOR 2.63 95% CI 1.31-5.28, p = 0.007), and a dissecting aneurysm at the site of the dissection (aOR 1.94 95% CI 1.25-3.01, p = 0.003). At follow-up, the presence of a cerebral aneurysm was not associated with ischemic stroke (7.8% vs. 5.6% p>0.1), but with a trend towards increased odds of symptomatic intracranial hemorrhage (3.4% vs. 1.2%, p = 0.062). Conclusions: Patients with CAD and concurrent incidental cerebral aneurysm were more likely to have a history of migraine headaches and markers of underlying vasculopathy and had a non-significantly increased risk of intracranial hemorrhage at follow-up. Further studies are needed to identify best practices for surveillance and risk stratification in this subgroup.
Abstract WP121: Pregnancy-Associated Cervical Artery Dissection: STOP-CAD Analysis
Krishnaiah, Balaji , Omran, Setareh Salehi , Elangovan, Cheran, Shu, Liqi , Sidebottom, Christian, Lee, Conner, Crandell, Ross, Lester, Evan, Henninger, Nils, Katheryna, Antonenko, Ahmad, Nehme, Khan, Muhib, Mallick, Dania, Rothstein, Aaron, Khazaal, Ossama , Engelter, Stefan T, Traenka, Christopher , Gandhi, Preet , Metanis, Issa, Leker, Ronen, Renneberg, Regina Von, Guo, Xiaofan, Ghannam, Malik, AlMajali, Mohammad, Samaniego, Edgar A., Fonseca, Ana, Cruz, Diana , Romoli, Michele, Keser, Zafer, Marialuisa, Zedde, Bakradze, Ekaterina, Velez, Faddi Saleh, Penckofer, Mary , Siegler, J, Zubair, Adeel , Marto, Joao Pedro, Klein, Piers, Nguyen, Thanh N., Khasiyev, Farid, Elnazeir, Marwa , Yaghi, Shadi, Henninger, Nils , Henninger, Nils , Elangovan, Cheran , Muppa, Jayachandra , Gunduz, Muhammed Enes , Heldner, Mirjam R. , Khan, Muhib , Rothstein, Aaron , Kaufmann, Josefin E. , Engelter, Stefan T. , Metanis, Issa , Leker, Ronen R , Shahripour, Reza Bavarsad , Ghannam, Malik , Samaniego, Edgar A , Cruz, Diana, Romoli, Michele , Keser, Zafer , Grory, Brian Mac , Bakradze, Ekaterina , Velez, Faddi G. Saleh , Siegler, James E. , Willey, Joshua , Marto, João Pedro , Klein, Piers , Nguyen, Thanh N. , Simpkins, Alexis N.

Mayo Clinic

Stroke | January 29, 2026 | Volume: 57 | Issue: Suppl_1 | Pages: No page available

10.1161/str.57.suppl_1.wp121 Get It

Background and Objectives: Pregnancy and the postpartum period increase the risk of cervical artery dissection (CEAD), a notable cause of stroke in young women. We aimed to describe the clinical presentation, imaging findings, and outcomes of CEAD occurring during pregnancy or shortly after delivery. Methods: We analyzed data from the STOP-CAD registry, a large international multicenter study of patients treated with antithrombotic therapy for non-traumatic CEAD between 2015 and 2021. This sub-study focused on women who were pregnant or within 12 weeks postpartum at the time of symptom onset. We assessed baseline clinical features, imaging results, acute stroke treatments, and functional outcomes. Results: Among 1,783 women in the registry, 62 (3.5%) had pregnancy-associated CEAD, with a median age of 34 years (IQR, 30-38). One-third had a history of migraine (33.9%), one-fifth had hypertension (21.0%), while other vascular risk factors were rare. Recent minor neck trauma was reported in 17.7%. Ischemic stroke symptoms occurred in 25 (40.3%) patients, and 23 (37.1%) had acute infarcts on imaging. However, most (59.7%) presented with non-ischemic symptoms. Vertebral artery dissections were more common than carotid dissections (62.9% vs. 48.4%), and 33.9% had multivessel involvement. Among patients presenting with ischemic stroke symptoms, 4 received thrombolysis and 7 underwent thrombectomy. Remarkably, 92% had excellent functional recovery (modified Rankin Score 0–1) at 90 days, and there were no stroke recurrences at 180 days. Conclusion: Pregnancy- and postpartum-associated CEAD is uncommon and associated with ischemic stroke in nearly half of patients. A history of migraine and hypertension may be potential risk factors. Despite the severity of presentation, most patients had favorable outcomes with timely treatment.
Abstract DP310: Dual Antiplatelet versus Anticoagulant-Plus-Antiplatelet Therapy in Symptomatic Intracranial Atherosclerosis: A Multicenter Comparative Study
Rehman, M. Aemaz Ur, Yaghi, Shadi, Kasab, Sami Al, Qdais, Ahmad Abu, Yaddanapudi, Sridhara , Sultana, Sabiha , Khan, Muhib, Malik, Maarij , Klaas, James P. , Guerrero, Christopher Leon, Velez, Faddi Saleh, Pinto, Camila, McCullough-Hicks, Margy, Cooper, Dawson C , Pillai, Abhiram Parameswaran, Hariharan, Praveen, Alam, Shaista , Antonenko, Kateryna, Almiri, William , Rothstein, Aaron, Krishnaiah, Balaji , Elangovan, Cheran, Agarwal, Ayush, Romoli, Michele, Nicola, Marrone, Vozzi, Stefano, Ghannam, Malik, Dibas, Mahmoud I., Marto, Joao Pedro, AlMajali, Mohammad, Sousa, Diana Aguiar de, Soares, Mafalda Delgado, Lima, Anicléia Rodrigues de, Tountopoulou, Argyro , Havenon, Adam de, Henninger, Nils, Helenius, Johanna, Khasawneh, Mohammad W , Klein, Piers, Shu, Liqi , Khatri, Pooja, Nguyen, Thanh N., Liebeskind, D, Bakradze, Ekaterina, Henninger, Nils , Sousa, Diana Aguiar de , Henninger, Nils , Aguiar de Sousa, Diana , Khan, Fahad , Yaghi, Shadi , Kasab, Sami Al , Sultana, Sabiha, Khan, Muhib , Leon Guerrero, Christopher R , Velez, Faddi G. Saleh , Owens, Cameron , Pinto, Camila, McCullough‐Hicks, Margy , Hariharan, Praveen , Alam, Shaista, Heldner, Mirjam R. , Antonenko, Kateryna , Rothstein, Aaron , Elangovan, Cheran , Romoli, Michele , Marrone, Nicola , Ghannam, Malik , Dibas, Mahmoud, Marto, João Pedro , Simpkins, Alexis N. , Soares, Mafalda , Lima, Amanda, Siegler, James E. , VASILOPOULOU, SOFIA, Klein, Piers , Bakradze, Ekaterina

Mayo Clinic

Stroke | January 29, 2026 | Volume: 57 | Issue: Suppl_1 | Pages: No page available

10.1161/str.57.suppl_1.dp310 Get It

Introduction: Intracranial atherosclerosis (ICAS) is a leading cause of ischemic stroke (IS) worldwide and carries a high risk of recurrence. Current guidelines favor 90 days of dual antiplatelet therapy (DAPT) for severe symptomatic ICAS, but recurrence remain high. Limited data suggest possible benefit of single antiplatelet plus anticoagulation (SAPT+AC). We compared the effectiveness and safety of DAPT versus SAPT+AC. We hypothesized that DAPT would lower 90-day recurrent IS risk without significantly increasing bleeding. Methods: This substudy of the Biomarkers and Recurrence Risk in Symptomatic Intracranial Arterial Stenosis (BIORISK-ICAS) included patients from 35 centers (Jan 2019–Jun 2024) with symptomatic 50–99% ICAS in the intracranial internal carotid, vertebral, basilar, or M1 segment of the MCA, presenting ≤72 hours from last known well. The primary efficacy outcome was recurrent IS in the same vascular territory at 90 days; the primary safety outcome was severe bleeding (symptomatic intracranial hemorrhage or major extracranial bleeding). Categorical variables were compared using χ 2 and continuous variables with the Student's t test; multivariable Cox regression adjusted for key covariates. Results: Of 2050 BIORISK-ICAS patients, 1658 met criteria (DAPT n=1499; SAPT+AC n=159). Mean age was 67 vs. 73 years, and 44% were women. At 90 days, recurrent IS occurred in 121 DAPT patients (8.07%) vs. 13 SAPT+AC patients (8.17%); unadjusted HR 0.83 (95% CI, 0.50–1.36; p=0.46). After adjustment for age, diabetes, coronary heart disease, atrial fibrillation, active smoking, and borderzone infarct, the adjusted HR was 0.99 (95% CI, 0.52–1.86; p=0.97). Severe bleeding occurred in 34 DAPT patients (2.26%) and 5 SAPT+AC patients (3.14%); unadjusted HR 0.79 (95% CI, 0.28–1.85; p=0.50), adjusted HR 0.66 (95% CI, 0.21–2.09; p=0.47). Conclusions: In patients with symptomatic ICAS, DAPT and SAPT+AC were associated with similar risks of 90-day recurrent ischemic stroke and severe bleeding. Well-powered randomized trials are needed to determine the optimal antithrombotic regimen in this high-risk population.
Abstract A132: Young Adults with Cervical Artery Dissection have a Distinct Clinical Phenotype: A Post-Hoc Analysis of the STOP-CAD Study
Omran, Setareh Salehi , Shu, Liqi , Yaghi, Shadi, Sidebottom, Christian, Crandall, Ross , Lester, Evan, Lee, Conner, Henninger, Nils, Antonenko, Kateryna, Khan, Muhib, Mallick, Dania, Rothstein, Aaron, Khazaal, Ossama , Engelter, Stefan T, Traenka, Christopher , Gandhi, Preet , Metanis, Issa, Leker, Ronen, Guo, Xiaofan, Ghannam, Malik, AlMajali, Mohammad, Samaniego, Edgar, Fonseca, Ana, Cruz, Diana, Romoli, Michele, Keser, Zafer, Zedde, Marialuisa, Bakradze, Ekaterina, Velez, Faddi Saleh, Penckofer, Mary , Zubair, Adeel , Marto, Joao Pedro, Klein, Piers, Nguyen, Thanh N., Khasiyev, Farid, Elnazeir, Marwa , Krishnaiah, Balaji , Elangovan, Cheran, Henninger, Nils , Henninger, Nils , Yaghi, Shadi , Muppa, Jayachandra , Gunduz, Muhammed Enes , Heldner, Mirjam R. , Antonenko, Kateryna , Nehme, Ahmad , Khan, Muhib , Rothstein, Aaron , Kaufmann, Josefin E. , Engelter, Stefan T. , Metanis, Issa , Leker, Ronen R , von Rennenberg, Regina , Shahripour, Reza Bavarsad , Ghannam, Malik , Cruz, Diana , Romoli, Michele , Keser, Zafer , Zedde, Marialuisa , Grory, Brian Mac , Bakradze, Ekaterina , Velez, Faddi G. Saleh , Siegler, James E. , Willey, Joshua , Marto, João Pedro , Klein, Piers , Nguyen, Thanh N. , Simpkins, Alexis N. , Elangovan, Cheran

Mayo Clinic

Stroke | January 29, 2026 | Volume: 57 | Issue: Suppl_1 | Pages: No page available

10.1161/str.57.suppl_1.a132 Get It

Background and Objectives: Cervical artery dissection (CeAD) is a common cause of ischemic stroke in young adults. We aim to identify age-based differences in clinical presentation, imaging findings, and outcomes after CeAD. Methods: This was a sub-study using the STOP-CAD registry, a multicenter cross-sectional international retrospective study of patients diagnosed with CeAD and treated with an antithrombotic from January 1, 2015 to December 31, 2021. Baseline clinical and imaging characteristics were compared between younger and older adults with CeAD (≤45 versus >45 years of age) using multivariable logistic regression. We chose this age cut off due to its frequent usage in stroke in the young literature. Multiple logistic regression models were used to determine association between young age and outcomes after CeAD (ischemic stroke at 180 days, excellent functional outcome with modified Rankin Scale of 0-1 at 90 days, and mortality) after adjusting for sex, vascular risk factors, CeAD characteristics, and NIHSS on presentation. Results: Among 4023 CeAD patients included in the study, 1901 (47.3%) were ≤45 years of age. Patients were followed for a median of 307 days (IQR 102-831). Young adults with CeAD were more likely to be women (Odds Ratio [OR], 2.4; 95% CI, 2.1-2.9; p<0.001), of Hispanic ethnicity (OR, 1.8; 95% CI 1.3-2.5; p<0.001), have a history of migraines (OR, 1.6; 95% CI, 1.3-2.0; p<0.001) and recent neck trauma (OR, 1.6; 95% CI, 1.3-1.9; p<0.001) while having fewer traditional vascular risk factors. Young adults with CeAD had higher odds of a non-ischemic presentation (OR, 1.3; 95% CI, 1.1-1.5; p=0.013), vertebral artery dissection (OR 2.5; 95% CI, 2.2-3.0; p<0.001), and multivessel involvement (OR 1.5; 95% CI, 1.1-1.9; p=0.004). In adjusted analysis, younger age was not associated with an increased risk of recurrent ischemic stroke (adjusted Hazard Ratio [HR], 0.48; 95% CI 0.2-1.2; p=0.119). Younger age was associated with significantly greater odds of excellent functional outcome at 90 days (aOR, 1.48; 1.20-1.84, p<0.001) and lower risk of death at follow up (aHR, 0.37; 95% CI, 0.17-0.81; p=0.012) after CeAD. Conclusion: In a large international cohort, young adults with CeAD had a distinct clinical phenotype with higher odds of non-ischemic presentation, vertebral artery dissection, and multivessel involvement while having fewer traditional vascular risk factors. Young adults had a decreased odds of disability and mortality after CeAD.
Identification of Reproducible CT‐Image Based Radiomic Features That Predict Shoulder Arthroplasty Outcomes
Rajabzadeh‐Oghaz, Hamidreza, Elwell, Josie , Schoch, Bradley, Aibinder, William R. , Gobbato, Bruno , Wessell, Daniel E. , Kumar, Vikas, Roche, Christopher , Wessell, Daniel, Roche, Christopher P , Aibinder, William R , Rajabzadeh-Oghaz, Hamidreza , Schoch, Bradley S.

Mayo Clinic

Journal of Orthopaedic Research | January 29, 2026 | Volume: 44 | Issue: 2 | Pages: No page available

10.1002/jor.70154 | PMID 41608758 Get It

ABSTRACT The goal of this radiomic analysis is to quantify the sensitivity of radiomic features on computed tomography (CT) image pre‐processing parameters and use machine learning (ML) techniques to identify the radiomic features that are highly predictive of shoulder arthroplasty outcomes. An ML framework auto‐segmented 3D masks of the deltoid muscle and scapula bone from pre‐operative CT images of 1949 primary anatomic total shoulder arthroplasty (aTSA)/reverse total shoulder arthroplasty (rTSA) patients. Radiomic features were extracted after various image pre‐processing protocols and assessed for reproducibility. The radiomic features deemed robust to image pre‐processing were used to train ML predictive outcomes models. Feature importance data were rank‐ordered to identify the radiomic features that were highly predictive of pain, motion, and function before and after aTSA/rTSA. A sensitivity analysis identified 37 deltoid muscle and 38 scapular bone radiomic features that were robust, reproducible, and unique across image pre‐processing parameters. The most predictive deltoid muscle radiomic measurements were normalized volume, elongation, flatness, fat percentage, sphericity, and max 2D diameter column. The most predictive scapular bone radiomic measurements were flatness, sphericity, elongation, max 2D diameter column, and max 2D diameter slice. Radiomic data of the deltoid and scapula were highly predictive of pain, motion, and function before and after aTSA and rTSA. Radiomic data were more predictive than patient comorbidities, diagnosis, and implant type/size data, but less predictive than pre‐operative active range of motion measurements and patient reported outcome measures, 3D measurements from planning software, or patient demographic data. Future work is required to clinically validate these radiomic features before they can be deployed in clinical decision support tools. Level of Evidence Level III, Retrospective Comparative Outcome Study.
Long-term cellular and humoral responses to SARS-CoV-2 vaccinations in patients with solid malignancies undergoing chemotherapy
liu, Andrew, Necela, Brian, Li, Zhuo, Cogen, Davitte , Wieczorek, Mikolaj A. , Mummareddy, Ashita , Acampora, Marites, Reynolds, Gina, Advani, Pooja , Moreno-Aspitia, Alvaro, Virk, Abinash, Bharucha, A E, Marquez, Christopher P. , Patel, Tushar C., Knutson, KL, Chumsri, Saranya , Li, Zhuo , Reynolds, Gina A, Advani, Pooja P, Necela, Brian M. , Mummareddy, Ashita , Swift, Melanie D. , Virk, Abinash , Bharucha, Adil E. , Knutson, Keith L.

Mayo Clinic

Frontiers in Immunology | January 29, 2026 | Volume: 16 | Issue: No issue available | Pages: No page available

10.3389/fimmu.2025.1690495 | PMID 41693712 Get It

Background While SARS-CoV-2 vaccines are highly effective in healthy individuals, the magnitude and durability of humoral and cellular responses in patients with solid malignancies receiving chemotherapy remain understudied. Previous reports suggest that patients with cancer may not mount adequate immune response after SARS-CoV-2 vaccination. Additionally, most studies focused on humoral responses, while data regarding cellular immune responses are scarce. In this study, we evaluated humoral and cellular responses in patients with solid tumors receiving chemotherapy compared to healthy individuals up to one year after vaccinations. Methods Patients aged ≥18 who were willing to receive the SARS-CoV-2 vaccine were enrolled. Anti-SARS-CoV-2 immunoassays were used to detect antibodies against nucleocapsid and spike proteins. Human IFN-γ Fluorospot assay was used to determine antigen−specific T-cell responses. Data were compared between groups using Mann−Whitney test for continuous variables and Fisher’s exact test for categorical variables. Results A total of 67 subjects (47 patients with cancer and 20 healthy individuals) were included. 1–3 months following the second vaccine doses, 96% of patients with cancer and 100% of healthy individuals demonstrated a positive humoral response. While the positivity rate was not significantly different, patients with cancer had significantly lower spike IgG antibodies than healthy individuals. However, this difference diminished at 6 months when patients with cancer had increased antibodies compared to decreased antibodies in the healthy cohort and no difference was noticed at 12-month. Patients with cancer developed a similar antigen-specific T-cell response as healthy individuals at 1–3 months, 6 months and 12 months. There were no significant differences when comparing patients aged ≤ 55 years vs. &gt;55 years, stages I-III vs. IV, single vs. multiple chemotherapy, and BNT162b2 vs. mRNA-1273 vaccines. There was a significant moderate correlation between neutralization and antibody levels at 12 months. However, despite patients with cancer having a significantly higher COVID risk score, there were no significant differences in COVID-19 infection and hospitalization between patients with cancer and healthy individuals. Conclusion Despite initial impaired antibody responses to SARS-CoV-2 vaccinations, patients with solid malignancies receiving chemotherapy effectively generated long-term cellular and humoral responses by 6 and 12 months, leading to similar infection and hospitalization rates compared to healthy individuals.