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Knight, Dacre

https://orcid.org/0000-0001-6206-0680

Mayo Clinic

Jacksonville College

Citations 9

Prevalence of Intracranial and Cervical Artery Abnormalities in Patients with Hypermobile Ehlers–Danlos Syndrome and Hypermobility Spectrum Disorders Presenting to an Academic Headache Clinic
Rozen, Todd D. , Rozen, Ethan M., Wilson, Frances C., Shields, Raymond C., Hayes, Sharonne N., Knight, Dacre R. T., Gajarawala, Shilpa N., Sandhu, Sukhwinder J.S., Bhatt, Alok A. , Fairweather, DeLisa, Hayes, Sharonne N. , Fairweather, DeLisa , Sandhu, Sukhwinder J.S. , Knight, Dacre , Wilson, Frances C , Hayes, Sharonne N , Knight, Dacre R T , Gajarawala, Shilpa , Sandhu, Sukhwinder S , Bhatt, Alok A , Fairweather, DeLisa , Rozen, Todd D. , Bruno, Katelyn A. , Tweet, Marysia S.

Neurology International | February 11, 2026 | Volume: 18 | Issue: 2 | Pages: 33

10.3390/neurolint18020033 Get It

Background/Objective: It remains unknown whether patients with the more common forms of hypermobility carry an elevated risk for the development of intracranial/cervical artery abnormalities. The objective of this study was to determine the prevalence of unruptured intracranial aneurysms, spontaneous cervical artery dissections, and fibromuscular dysplasia in patients with hypermobile Ehlers–Danlos Syndrome (hEDS) and hypermobility spectrum disorders (HSD) who presented to an academic headache clinic. Methods: This is a retrospective cohort study. We used an electronic medical record to look for all patients seen at the Mayo Clinic Florida Headache Center and EDS Clinic between 2019 and 2025 with a diagnosis of hEDS or HSD and neuroimaging of both the intracranial and cervical arteries. Results: There were 103 patients who met the inclusion criteria. There was no statistically significant difference between hEDS and HSD patients in developing cerebral/cervical arterial anomalies. Of the sample, 95% of the hypermobile patients with abnormal neuroimaging also had migraine. A total of eleven (10.7%) patients (hEDS + HSD) were diagnosed with unruptured intracranial aneurysms. Trends included age less than 50 years, small aneurysms in the anterior circulation, and having migraine with aura. Five (4.8%) patients were diagnosed with spontaneous cervical artery dissection with trends for HSD, over the age of 50 years, vertebral artery involvement and a history of migraine without aura. Six (5.8%) patients were diagnosed with fibromuscular dysplasia with trends for HSD, over the age of 50 years, carotid artery involvement and a history of migraine with aura. Conclusions: This is the first study to identify that patients with the more common type of EDS, HSD and hEDS, and a possible concomitant history of migraine have a heightened risk for the development of unruptured intracranial aneurysms, spontaneous cervical artery dissections, and fibromuscular dysplasia. Our findings suggest the need for targeted screening with intracranial and extracranial arterial imaging for this unique patient population.
Comparative assessment of left common iliac vein compression in patients with hypermobile Ehlers-Danlos syndrome, hypermobility spectrum disorder and healthy controls – A retrospective single-centre study
Ogunlade, Samuel Busayo , Brown, Dillon M. , Rozen, Todd D. , Lewis, Andrew R. , Toskich, Beau , Fairweather, DeLisa , Knight, Dacre , Devcic, Zlatko , Ogunlade, Samuel B , Brown, Dillon, Rozen, Todd, Toskich, Beau B. , Knight, Dacre R T , Fairweather, DeLisa , Brown, Dillon, Bruno, Katelyn A.

Phlebology: The Journal of Venous Disease | November 18, 2025 | Volume: 41 | Issue: 6 | Pages: 506-514

10.1177/02683555251400392 Get It

Objectives Heritable connective tissue disorders (HCTDs), including hypermobile Ehlers-Danlos syndrome (hEDS) and hypermobile spectrum disorder (HSD), have complex clinical manifestations, but the prevalence of left common iliac vein (LCIV) compression in these groups is not well known. This study aimed to compare the prevalence of significant LCIV compression in patients with hEDS, HSD, and healthy controls. Methods This retrospective, IRB-approved, single-center study analyzed 109 patients (25 hEDS, 64 HSD, 20 controls) who underwent contrast-enhanced abdominal and pelvic CT imaging from 2020 to 2023. LCIV compression was measured on axial CT, with >50% luminal narrowing defined as significant. Statistical analyses included chi-square tests, odds ratios, and t -tests. Interrater reliability was evaluated using intraclass correlation coefficients. Results Significant LCIV compression occurred in 68.0% of hEDS, 65.6% of HSD, and 35.0% of controls ( p = 0.034). Both hEDS ( p = 0.027) and HSD ( p = 0.015) groups had significantly higher compression rates than controls, with no statistically significant difference between the two clinical groups ( p = 0.831). Odds of compression were nearly fourfold greater in hEDS (OR 3.95) and HSD (OR 3.54) compared to controls. Conclusion LCIV compression is significantly more prevalent in patients with hEDS and HSD than in healthy controls, warranting further investigation of its clinical significance.
Nonpelvic comorbid symptoms of 45 patients with pain of pelvic venous origin, before and after treatment
Smith, Steven J. , Sichlau, Michael J. , Chen, Brenda, Knight, Dacre , Rowe, Peter C. , Smith, B Holly , Knight, Dacre R T , Rowe, Peter C

Phlebology: The Journal of Venous Disease | August 10, 2024 | Volume: 40 | Issue: 2 | Pages: 66-79

10.1177/02683555241273109 Get It

Objective To report the prevalence and severity of nonpelvic symptoms for patients with venous-origin chronic pelvic pain (VO-CPP) and to describe outcomes after pelvic vein stenting and embolization. Methods We retrospectively reviewed outcomes of 45 women with VO-CPP who underwent treatment with iliac vein stenting and/or embolization. Patients completed symptom-severity questionnaires before and after treatment that assessed for pelvic pain, and multiple other symptoms, including brain fog, anxiety, depression, musculoskeletal pain, fatigue, migraines and more. Results Patient age ranged from 18 to 65 years. The prevalence of common symptoms was as follows: migraines, 69%; brain fog, 76%; anxiety attacks, 58%; excess sweating, 64%; hip pain, 73%; diarrhea, 62%; constipation, 76%; and abdominal bloating, 82%. After treatment, most symptom scores improved by more than 50%; exceptions were excessive sweating (41% improvement) and bloating (47% improvement). Prevalence of individual symptoms that bundle into POTS ranged from 29% to 76%, where symptom improvement ranged from 23% to 59% after treatment. Overlapping individual symptoms characteristic of fibromyalgia and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) were present in 64% to 82% of patients and all improved by 49% to 63% after treatment. Conclusions Pelvic venous flow abnormality is linked causally to a spectrum of interrelated symptoms, of which many can be bundled into named syndromes of unknown cause. With catheter- based treatment of pelvic venous pooling, nonpelvic symptom and syndrome scores improved.
Risk factors for post-acute sequelae of COVID-19: Survey results from a tertiary care hospital
Munipalli, Bala, Ma, Yaohua , Li, Zhuo , Logvinov, Ilana I. , Paul, Stefan N., Delaney, Troy R., Knight, Dacre , Logvinov, Ilana , Ganesh, Ravindra , Knight, Dacre R T , Dabrh, Abd Moain Abu

Journal of Investigative Medicine | July 24, 2023 | Volume: 71 | Issue: 8 | Pages: 896-906

10.1177/10815589231190560 Get It

Identifying risk factors for post-acute sequelae of COVID-19 (PASC) is important. We conducted a multicenter cross-sectional survey study to define and characterize risk factors for severe COVID-19 in adults (≥18 years) treated at our virtual COVID-19 clinic from March 1, 2020, through March 31, 2021. We assessed patient demographics, symptom types, and persistence, incidence of PASC, and COVID-19–caused hospitalizations. Surveyed patients were also asked to rate their perception of the severity of their acute COVID-19 symptoms. Continuous variables were summarized descriptively. Differences among groups categorized by acute COVID-19 symptom severity level (mild/very mild, moderate, and severe/very severe) were evaluated with the Kruskal–Wallis rank sum test for continuous measures and the Pearson χ 2 test for categorical measures. A total of 3094 adults completed the survey. More respondents with severe/very severe acute COVID-19 symptoms reported having PASC than did those with mild/very mild and moderate acute symptoms. A significantly greater proportion of respondents with PASC were women (68.4% vs 56.7%, p < 0.001), had been hospitalized (12.2% vs 4.4%, p < 0.001), reported having negative psychological COVID-19–related repercussions (39.9% vs 15.3%, p < 0.001), and required more than 1 month to resume normal activities (38.8% vs 12.9%, p < 0.001) than did those without PASC. These findings may improve our understanding of PASC and provide a framework for early recognition of and intervention for patients at higher risk for PASC. Further research is needed to understand the predictors of persistent symptoms after acute SARS-CoV-2 infection and the risk of PASC.
Patient Interest in the Development of a Center for Ehlers-Danlos Syndrome/Hypermobility Spectrum Disorder in the Chicagoland Region
Wagner, Wendy , Doyle, Tom, Halverson, Colin , Knight, Dacre , Halverson, Colin , Wagner, Wendy, Doyle, Tom, Francomano, Clair A. , Knight, Dacre R T

No container title available | July 14, 2023 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-3034682/v1 Get It

Abstract Background: The Ehlers-Danlos Syndromes (EDS) are a set of connective tissue disorders that are hereditary in nature and characterized by joint hypermobility and tissue fragility. The complex nature of this unique patient population requires multidisciplinary care, but appropriate centers for such care do not exist in large portions of the country. Need for more integrated services has been identified in the Chicagoland region. In order to explore and begin to address barriers to seeking out appropriate care facing EDS patients in this region, we developed an online survey which we circulated through EDS social media groups for Chicagoland patients. Results: Three hundred and nine unique respondents participated. We found that there exists a strong medical need for and interest in the development of a center in the region, and participants reported that, if made available to them, that they would make extensive and regular use of such a facility. Conclusions: We conclude that the establishment of a collaborative medical center specializing in the diagnosis and treatment of EDS, HSD, and related disorders in the Chicagoland area would greatly benefit patients by providing comprehensive care, alleviate the burden on overworked healthcare providers, and generate revenue for medical facilities.
Depression: A Modifiable Risk Factor for Poor Outcomes in Fibromyalgia
Munipalli, Bala , Allman, Madeleine , Chauhan, Mohit , Niazi, Shehzad K. , Rivera, Fernando, Abril, Andy , Wieczorek, Mikolaj A. , Hodge, David O. , Dudenkov, Daniel V. , Bruce, Barbara K. , Knight, Dacre , Perlman, Adam , Dudenkov, Daniel, Chauhan, Mohit , Rivera, Fernando, Wang, Benjamin X. , Knight, Dacre R T , Perlman, Adam , Dabrh, Abd Moain Abu

Journal of Primary Care & Community Health | August 29, 2022 | Volume: 13 | Issue: No issue available | Pages: No page available

10.1177/21501319221120738 Get It

Background: About 4 out of 10 fibromyalgia patients suffer from depression. The European Alliance of Associations for Rheumatology (EULAR) guidelines recommend using antidepressants to treat fibromyalgia. Objective: To determine predictors of improved outcomes following a multicomponent treatment program. Design: We designed this longitudinal treatment outcome study to evaluate the prevalence of depression symptoms in patients diagnosed with fibromyalgia at a tertiary care facility, and the impact of depression on functional outcomes after completing a multicomponent fibromyalgia treatment program. Setting: Tertiary care center. Patients: This study included 411 adult patients with fibromyalgia who completed a multicomponent treatment program for fibromyalgia. Expert physicians performed comprehensive evaluations following American College of Rheumatology (ACR) criteria to confirm fibromyalgia before referral to the program. Intervention: An intensive outpatient multicomponent treatment program consisting of 16 hours of cognitive behavioral strategies served as the intervention. Measurements: Functional status was assessed using the Fibromyalgia Impact Questionnaire Revised (FIQR). Depression was evaluated with the Center for Epidemiologic Study of Depression (CES-D) measure. Measures were administered prior to participation in the program and approximately 5 months following completion of the program. Results: The cohort had a high prevalence of depressive symptoms (73.2% had depression at admission). Higher depression scores at baseline predicted poorer outcomes following multi-component treatment. Effectively treated depression resulted in improved functioning at follow-up. Limitations: Findings limited to tertiary care center cohort of fibromyalgia patients. Patients did not undergo a structured clinical diagnostic interview to diagnose depression. Conclusions: The current data links depression to poorer outcomes in patients with fibromyalgia. Depression is an important modifiable factor in the management of fibromyalgia. Guidelines should reflect the importance of assessing and effectively treating depression at the time of diagnosis of fibromyalgia, to improve functional outcomes. Registration: Specific registry and specific study registration number—Institutional Review Board—(IRB# 19-000495). Funding Source: No funding.
The Impact of a Group Telemedicine Program for Chronic Disease: A Retrospective Cohort Survey Study on Hypermobile Ehlers-Danlos Syndrome and Hypermobility Spectrum Disorder
Knight, Dacre , Bruno, Katelyn A. , Gehin, Jessica M. , Lothman, Kristin A., Leschitz, John, Lazo, Amanda L., Mejia, Lisa, Motherwell, Lesley S., Seymour-Sonnier, Andrea M., Dawson, Nancy L. , Fairweather, DeLisa , Knight, Dacre R T , Fairweather, DeLisa , Bruno, Katelyn A

Telemedicine and e-Health | June 10, 2022 | Volume: 29 | Issue: 2 | Pages: 261-269

10.1089/tmj.2022.0092 Get It

Background: We present an innovative care model for telehealth by creating a video conference group telemedicine program for patients with chronic disease and discuss findings from a post-program survey that was instrumental in understanding the response to telemedicine in a group setting. Methods: All patients who attended the group telemedicine program had a diagnosis of Hypermobile Ehlers-Danlos Syndrome or Hypermobility Spectrum Disorder and were requested to complete survey responses at the close of the program. Surveys were completed anonymously and electronically by REDCap. Elements of the Press Ganey, Consumer Assessment of Healthcare Providers and Systems, and Utah Telehealth Network patient satisfaction surveys were modified to construct the survey. Results: A total of 102 patients completed the post-telehealth program survey between August 20, 2021, and February 11, 2022. Around 93.1% stated that they gained a better understanding of the chronic condition, 88.3% stated that the program gave them the tools to improve, and 76.5% indicated the program addressed their specific needs. Approximately 92.1% found it easy to interact with the program facilitator and 79.4% found it easy to interact with program members. Around 93.1% said they would recommend the program to others. Discussion: We created a group telemedicine program for a complex chronic medical condition. The foundation of knowledge provided by the telemedicine program allowed more time during face-to-face encounters for individual assessment of the patient, and increased access to care. Overall, the program has improved the treatment process by reducing treatment burden and empowering patients with self-management skills to help reach our fundamental treatment goal of improving quality of life.
SARS-CoV-2 serological testing changes disease management in a PCR-negative patient
Knight, Dacre , Irizarry-Alvarado, Joan M., Irizarry-Alvarado, Joan, Knight, Dacre R T

BMJ Case Reports | August 11, 2020 | Volume: 13 | Issue: 8 | Pages: e237239

10.1136/bcr-2020-237239 Get It

Since the beginning of the COVID-19 pandemic, healthcare providers worldwide have faced many obstacles in the diagnostic evaluation of patients for severe acute respiratory syndrome coronavirus 2, the causative virus. Even with the application of statistical inference by Bayes’ theorem to estimate the probability of a diagnosis, with and without testing capabilities, some cases may still carry a degree of uncertainty. This has important implications for limiting the spread of disease. The basis for isolation and quarantine is a known diagnosis. This case is an example of a diagnostic conundrum that required more thorough use of testing methods, particularly serological testing, to guide the isolation recommendations for a patient with COVID-19. This will be helpful to other diagnosticians by providing an example of how serological findings may be effectively applied in the course of individual COVID-19 management.
Establishing Mayo Clinic's Coronavirus Disease 2019 Virtual Clinic: A Preliminary Communication
Jethwa, Tarang , Ton, Angie , Molina, Carolina Stefany Paredes, Speicher, Leigh L. , Walsh, Katherine, Davlantes, Timothy, Francis, Dawn L., Paredes Molina, Carolina Stefany, Speicher, Leigh, Knight, Dacre , Francis, Dawn, Knight, Dacre R T

Telemedicine and e-Health | June 9, 2020 | Volume: 26 | Issue: 11 | Pages: 1419-1423

10.1089/tmj.2020.0145 Get It

The coronavirus disease 2019 (COVID-19) pandemic is taking a massive toll on health care systems globally. We developed the COVID-19 virtual clinic (CVC) in conjunction with drive through testing to cope with this situation. There are two arms of the CVC: (1) a screening arm and (2) positive patient arm. Screening is performed over the phone based on the Centers for Disease Control and Prevention screening guideline. Positive patients are followed at regular intervals by video appointments where concerns can be addressed by a provider while also tracking symptom progression. We enrolled 63 positive patients out of 1,153 screened for COVID-19 as of this writing. The CVC continues to address patients' concerns and symptoms in an effort to minimize emergency department and hospital patient volumes, as incidence increases. Drive through testing in conjunction with a virtual clinic allows us to provide high-quality care in an anxious time without consuming excessive personal protective equipment or unnecessarily exposing health care workers. This article could serve as a model to guide other practices to cope with this and future pandemics.