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716 citation(s) found for "Ma, Colin".

Relevance of the Cochlear Aqueduct in Presigmoid Approaches: A Radio-Anatomical Study
Alexander, A. Yohan , Nizzola, Mariagrazia , Leonel, Luciano, Driscoll, Colin L. W., Link, Michael J., Peris‐Celda, Maria , Alexander, A Yohan , Link, Michael J.

Journal of Neurological Surgery Part B: Skull Base | February 21, 2024 | Volume: 85 | Issue: S 01 | Pages: S1-S398

10.1055/s-0044-1779866 Get It

Humoral immune response and safety of SARS‐CoV‐2 vaccination in very early onset inflammatory bowel disease
Kastl, Arthur , Weaver, Kimberly N. , Zhang, Xian , Strople, Jennifer A., Adler, Jeremy, Kelsen, Judith R. , Dubinsky, Marla C. , Bousvaros, Athos, Watkins, Runa , Dai, Colin, Cross, Raymond, Higgins, Peter , Bewtra, Meenakshi , Bellaguarda, Emanuelle, Chun, Kelly , Zikry, Michael, Bastidas, Monique , Boccieri, Margie E., Firestine, Ann M. , Long, Millie D. , Adler, Jeremy, Ungaro, Ryan C. , Farraye, Francis A. , Boccieri, Margie , Kappelman, Michael D. , Adler, J

Journal of Pediatric Gastroenterology and Nutrition | February 15, 2024 | Volume: 78 | Issue: 4 | Pages: 871-877

10.1002/jpn3.12142 | PMID 38356293 Get It

AbstractChildren with very early onset inflammatory bowel disease (VEO‐IBD) may respond differently to coronavirus disease 2019 (COVID‐19) immunization compared to healthy children or other patients with IBD. We recruited children with VEO‐IBD <6 years of age and younger following receipt of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) vaccine. Demographics, IBD characteristics, medication use, adverse events (AEs) and IBD exacerbations were collected. Blood draws (optional) were obtained for measurement of antireceptor binding domain (RBD) IgG antibodies following vaccination. Of 41 participants, none required emergency department visit or hospitalization due to AE, and only one experienced IBD exacerbation. Detectable antibody was present in 19/19 participants who provided blood sample; 6/7 participants (86%) had durable humoral response 12 months postvaccination. Children with VEO‐IBD experience robust humoral immune response to COVID‐19 immunization. Severe AEs were rare. These findings provide reassurance that children with VEO‐IBD respond well and safely to SARS‐CoV‐2 vaccination.
Venous and arterial thrombosis in patients with VEXAS syndrome
Kusne, Yael , Ghorbanzadeh, Atefeh , Dulau-Florea, Alina, Alcedo, Pedro E., Nghiem, Khanh, Ferrada, Marcela A. , Hines, Alexander , Quinn, Kaitlin A. , Panicker, Sumith R. , Reichard, Kaaren K. , Darden, Ivana, Goodspeed, Wendy, Durrani, Jibran , Wilson, Lorena, Olteanu, Horatiu , Lasho, Terra, Kastner, Daniel L. , Mangaonkar, Abhishek A. , Braylan, Raul C. , Beck, David B. , Patnaik, Mrinal M. , Young, Neal S. , Grayson, Peter C. , Panicker, Sumith R , Durrani, Jibran , Olteanu, Horatiu , Warrington, Kenneth J , Patnaik, Mrinal , Casanegra, Ana I , Houghton, Damon E , Groarke, Emma M , Quinn, Kaitlin A , Ferrada, Marcela A , Ghorbanzadeh, Atefeh , Shalhoub, Ruba N. , Ombrello, Amanda K. , Warrington, Kenneth J. , Go, Ronald S. , Calvo, Katherine R. , Casanegra, Ana I. , Koster, Matthew J. , Wu, Colin O. , Kanthi, Yogendra , Patel, Bhavisha A. , Houghton, Damon E.

Blood | February 2, 2024 | Volume: 143 | Issue: 21 | Pages: 2190-2200

10.1182/blood.2023022329 | PMID 38306657 Get It

Abstract VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome, caused by somatic mutations in UBA1, is an autoinflammatory disorder with diverse systemic manifestations. Thrombosis is a prominent clinical feature of VEXAS syndrome. The risk factors and frequency of thrombosis in VEXAS syndrome are not well described, due to the disease’s recent discovery and the paucity of large databases. We evaluated 119 patients with VEXAS syndrome for venous and arterial thrombosis and correlated their presence with clinical outcomes and survival. Thrombosis occurred in 49% of patients, mostly venous thromboembolism (VTE; 41%). Almost two-thirds of VTEs were unprovoked, 41% were recurrent, and 20% occurred despite anticoagulation. The cumulative incidence of VTE was 17% at 1 year from symptom onset and 40% by 5 years. Cardiac and pulmonary inflammatory manifestations were associated with time to VTE. M41L was positively associated specifically with pulmonary embolism by univariate (odds ratio [OR]: 4.58, confidence interval [CI] 1.28-16.21, P = .02) and multivariate (OR: 16.94, CI 1.99-144.3, P = .01) logistic regression. The cumulative incidence of arterial thrombosis was 6% at 1 year and 11% at 5 years. The overall survival of the entire patient cohort at median follow-up time of 4.8 years was 88%, and there was no difference in survival between patients with or without thrombosis (P = .8). Patients with VEXAS syndrome are at high risk of VTE; thromboprophylaxis should administered be in high-risk settings unless strongly contraindicated.
Abstract TMP6: Dural Arteriovenous Fistulas With Cognitive Impairment: Angiographic Characteristics and Treatment Outcomes
Sanchez, Sebastian , Sagues, Elena , Gudino, Andres, Saleem, Arshaq, Sheehan, Jason P. , Kim, Louis J. , Meyer, R. Michael, Guniganti, Ridhima , Kansagra, Akash P. , Brinjikji, Waleed , Durnford, Andrew , Polifka, Adam , Gross, Bradley A. , Alaraj, Ali , Kwasnicki, Amanda , Starke, Robert M., Chen, Stephanie H. , Potgieser, Adriaan R. E., Satomi, Junichiro, Tada, Yoshiteru , Winkler, Ethan A. , Zipfel, Gregory J. , Alaraj, Ali , Ojeda, Diego, Gudino, Andres , Saleem, Arshaq , Wendt, Linder , Hayakawa, M. , Chen, Ching‐Jen , Kim, Louis J. , Abecassis, Isaac Josh , Levitt, Michael R. , Lanzino, Giuseppe , Giordan, Enrico , Bulters, Diederik , Fox, W Christopher , Smith, Jessica , Gross, Bradley , Amin-Hanjani, Sepideh , van DijK, J Marc C , Phelps, Ryan , Abla, Adib A. , Du, Rose , Lai, Pui Man Rosalind , Ortega-Gutierrez, Santiago , Derdeyn, Colin P. , Samaniego, Edgar A

Stroke | February 1, 2024 | Volume: 55 | Issue: Suppl_1 | Pages: No page available

10.1161/str.55.suppl_1.tmp6 Get It

Background: Anecdotal cases of rapidly progressing dementia in patients with dural arteriovenous fistulas (dAVFs) and cortical venous drainage have been reported in small series. However, a comprehensive description of the angiographic features of this dAVFs is lacking. We conducted an analysis of the largest cohort of dAVFs presenting with cognitive impairment (dAVFs-CI), aiming to provide a better characterization of this subset of dAVFs. Methods: The CONDOR Consortium, a multicenter repository comprising 1077 dAVFs, served as the study population. Among the dAVFs, patients with dAVFs-CI were analyzed. A propensity scores matching analysis was conducted to compare dAVFs-CI with Borden type II and type III dAVFs without cognitive impairment (controls). Logistic regression was employed to identify angiographic characteristics specific to dAVFs-CI. Post-treatment outcomes were analyzed. Results: A total of 60 patients with dAVFs-CI and 60 control dAVFs were included. Outflow obstruction leading to venous hypertension was observed in all dAVFs-CI. Sinus stenosis was significantly associated with dAVFs-CI (OR 2.85, 95% CI: 1.16-7.55, p = 0.027). dAVFs-CI were more likely to have a higher number of arterial feeders (OR 1.56, 95% CI 1.22-2.05, p < 0.001) and draining veins (OR 2.05, 95% CI 1.05-4.46, p = 0.004). Venous ectasia increased the risk of dAVFs-CI (OR 2.38, 95% CI 1.13-5.11, p = 0.024). A trend toward achieving asymptomatic status at follow-up was observed in patients with successful closure of dAVFs (OR 2.86, 95% CI 0.85-9.56, p = 0.09). Discussion: Venous hypertension is a key angiographic feature dAVFs-CI. dAVFs-CI exhibit a complex angioarchitecture characterized by an increased number of arteriovenous connections and stenosed sinuses. The presence of venous ectasia further exacerbates the impaired drainage and contributes to the development of dAVFs-CI. Notably, closure of the dAVF has the potential to reverse symptoms in certain cases (Figure).
The Lymphoma Epidemiology of Outcomes cohort study: Design, baseline characteristics, and early outcomes
Cerhan, James R. , Maurer, Matthew J. , Link, Brian K. , Feldman, Andrew L. , Habermann, Thomas M. , Jaye, David L. , Burack, Richard , McDonnell, Timothy J. , Vega, Francisco , Chapman, Jennifer R. , Leonard, John P. , Bernal‐Mizrachi, Leon , Alderuccio, Juan Pablo , Riska, Shaun M., Gysbers, Brianna, Lunde, Julianne J. , Reicks, Tanner W., Ayers, Amy , O’Leary, Colin B. , Yost, Kathleen J. , Nowakowski, Grzegorz S. , Ruan, Jia , Koff, Jean L. , Thompson, Carrie A. , Cohen, Jonathon B. , Lossos, Izidore S. , Friedberg, Jonathan W. , Martin, Peter W., Flowers, Christopher R. , Burack, W Richard , Syrbu, Sergei , Vij, Kiran R , Bernal-Mizrachi, Leon , Witzig, T.E. , Weiner, George , Wang, Yucai , Alderuccio, Juan Pablo , Slager, Susan L , Liu, Hongfang , Chihara, Dai , Koff, Jean L , Casulo, Carla , Thompson, Carrie A , Cohen, Jonathon B , Kahl, Brad S , Lossos, Izidore S , Feldman, Andrew L , Maurer, Matthew , Cerhan, James R , Vega, Francisco , Link, Brian K , Habermann, Thomas , Jaye, David L , Syrbu, Sergei , Inghirami, Giorgio , Farooq, Umar , Witzig, Thomas E. , Weiner, George J. , Wang, Yucai , Slager, Susan L. , Larson, Melissa C. , Liu, Hongfang , Chihara, Dai , Casulo, Carla , Kahl, Brad S. , Nastoupil, Loretta J. , Martin, Peter

American Journal of Hematology | January 13, 2024 | Volume: 99 | Issue: 3 | Pages: 408-421

10.1002/ajh.27202 | PMID 38217361 Get It

AbstractTo address the current and long‐term unmet health needs of the growing population of non‐Hodgkin lymphoma (NHL) patients, we established the Lymphoma Epidemiology of Outcomes (LEO) cohort study (NCT02736357; https://leocohort.org/). A total of 7735 newly diagnosed patients aged 18 years and older with NHL were prospectively enrolled from 7/1/2015 to 5/31/2020 at 8 academic centers in the United States. The median age at diagnosis was 62 years (range, 18–99). Participants came from 49 US states and included 538 Black/African‐Americans (AA), 822 Hispanics (regardless of race), 3386 women, 716 age <40 years, and 1513 rural residents. At study baseline, we abstracted clinical, pathology, and treatment data; banked serum/plasma (N = 5883, 76.0%) and germline DNA (N = 5465, 70.7%); constructed tissue microarrays for four major NHL subtypes (N = 1189); and collected quality of life (N = 5281, 68.3%) and epidemiologic risk factor (N = 4489, 58.0%) data. Through August 2022, there were 1492 deaths. Compared to population‐based SEER data (2015–2019), LEO participants had a similar distribution of gender, AA race, Hispanic ethnicity, and NHL subtype, while LEO was underrepresented for patients who were Asian and aged 80 years and above. Observed overall survival rates for LEO at 1 and 2 years were similar to population‐based SEER rates for indolent B‐cell (follicular and marginal zone) and T‐cell lymphomas, but were 10%–15% higher than SEER rates for aggressive B‐cell subtypes (diffuse large B‐cell and mantle cell). The LEO cohort is a robust and comprehensive national resource to address the role of clinical, tumor, host genetic, epidemiologic, and other biologic factors in NHL prognosis and survivorship.
Vacation Days Taken, Work During Vacation, and Burnout Among US Physicians
Sinsky, Christine A. , Trockel, Mickey , Carlasare, Lindsey E. , Shanafelt, Tait D. , Shanafelt, Tait D , Dyrbye, Liselotte N. , Wang, Hanhan , West, Colin P.

JAMA Network Open | January 12, 2024 | Volume: 7 | Issue: 1 | Pages: e2351635

10.1001/jamanetworkopen.2023.51635 | PMID 38214928 Get It

ImportanceVacation has been shown to be an important restorative activity in the general population; less is known about physicians’ vacation behaviors and their association with burnout and professional fulfillment.ObjectiveTo examine the number of vacation days taken per year and the magnitude of physician work while on vacation and their association with physician burnout and professional fulfillment, by individual and organizational characteristics.Design, Setting, and ParticipantsThis cross-sectional survey of US physicians was conducted between November 20, 2020, and March 23, 2021. Data analysis was performed from March to July 2023.Main Outcomes and MeasuresBurnout was measured using the Maslach Burnout Index, and professional fulfillment was measured using the Stanford Professional Fulfillment Index. Number of vacation days taken in the last year, time spent working on patient care and other professional tasks per typical vacation day (ie, work on vacation), electronic health record (EHR) inbox coverage while on vacation, barriers to taking vacation, and standard demographics were collected.ResultsAmong 3024 respondents, 1790 of 3004 (59.6%), took 15 or fewer days of vacation in the last year, with 597 of 3004 (19.9%) taking 5 or fewer days. The majority, 2104 respondents (70.4%), performed patient care–related tasks on vacation, with 988 of 2988 (33.1%) working 30 minutes or more on a typical vacation day. Less than one-half of physicians (1468 of 2991 physicians [49.1%]) reported having full EHR inbox coverage while on vacation. On multivariable analysis adjusting for personal and professional factors, concern about finding someone to cover clinical responsibilities (odds ratio [OR], 0.48 [95% CI, 0.35-0.65] for quite a bit; OR, 0.30 [95% CI, 0.21-0.43] for very much) and financial concerns (OR, 0.49 [95% CI, 0.36-0.66] for quite a bit; OR, 0.38 [95% CI, 0.27-0.54] for very much) were associated with decreased likelihood of taking more than 3 weeks of vacation per year. Taking more than 3 weeks of vacation per year (OR, 0.66 [95% CI, 0.45-0.98] for 16-20 days; OR, 0.59 [95% CI, 0.40-0.86] for &amp;gt;20 days vs none) and having full EHR inbox coverage while on vacation (OR, 0.74; 95% CI, 0.63-0.88) were associated with lower rates of burnout on multivariable analysis, whereas spending 30 minutes or longer per vacation day on patient-related work (OR, 1.58; 95% CI, 1.22-2.04 for 30-60 minutes; OR, 1.97; 95% CI, 1.41-2.77 for 60-90 minutes; OR, 1.92; 95% CI, 1.36-2.73 for &amp;gt;90 minutes) was associated with higher rates of burnout.Conclusions and RelevanceIn this cross-sectional study of 3024 physicians, the number of vacation days taken and performing patient-related work while on vacation were associated with physician burnout. System-level efforts to ensure physicians take adequate vacation and have coverage for clinical responsibilities, including EHR inbox, may reduce physician burnout.
Pathophysiology of Facial Nerve Stimulation and Its Implications for Electrical Stimulation in Cochlear Implants
Saoji, Aniket A. , DeJong, Melissa D., Bertsch, Natasha J., Graham, Madison K., Goulson, Kayla R., Pease, Megan L. Wernsman, Gruenwald, Jill M., Bross, Abigail E., Dornhoffer, James R. , Neff, Brian A., Driscoll, Colin L. W., Carlson, Matthew L. , Lane, John I. , Pesch, Joerg, Vanpoucke, Filiep J.

Otology & Neurotology | January 11, 2024 | Volume: 45 | Issue: 2 | Pages: e84-e90

10.1097/mao.0000000000004082 | PMID 38206062 Get It

Objectives A small number of cochlear implant (CI) users experience facial nerve stimulation (FNS), which can manifest as facial twitching. In some patients, this can be resolved by adjusting the electrical stimulation parameters. However, for others, facial stimulation can significantly impair CI outcomes or even prevent its use. The exact mechanisms underlying FNS are unclear and may vary among patients. Design Transimpedance measurements were used to assess lateral and longitudinal spread of current within 15 cochlea of nucleus CI recipients with FNS (13 unilateral recipients and 1 bilateral recipient). We compared the transimpedance measurements with programming parameters from clinical visits and pre- and postoperative temporal bone computed tomography (CT) scans to identify factors that may contribute to FNS in each CI ear. Results In nine ears, transimpedance curves showed inflection, which suggests a localized current sink within the cochlea. This indicates a low-impedance pathway through which current exits the cochlea and stimulates the labyrinthine segment of the facial nerve canal. Electrodes near this current sink were disabled or underfit to minimize facial stimulation. In the other seven ears, current flow peaked toward the basal end of the cochlea, suggesting that current exits through the round window or other structures near the basal end of the cochlea, stimulating the tympanic segment of the facial nerve. Conclusions Objective transimpedance measurements can be used to elucidate the mechanisms of FNS and to develop strategies for optimizing electrical stimulation parameters and speech coding to minimize or eliminate FNS in a small subset of CI users.
Knowledge, Attitudes, and Practice Styles of North American Pediatric Gastroenterologists:Helicobacter pylori Infection
Chang, Howard Y. , Sharma, Virender K. , Gold, Benjamin D., Howden, Colin W.

Journal of Pediatric Gastroenterology and Nutrition | January 3, 2024 | Volume: 36 | Issue: 2 | Pages: 235-240

10.1002/j.1536-4801.2003.tb07997.x Get It

ABSTRACTObjectiveMost Helicobacter pylori infections are acquired during childhood. The North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) recently published practice guidelines for managing pediatric H. pylori infection. Before this publication, the authors conducted a survey to assess pediatric gastroenterologists' knowledge and practices regarding H. pylori.MethodsOne hundred nine of 514 NASPGHAN members completed an Internet‐based questionnaire on H. pylori infection.ResultsEighty‐two percent of respondents performed outpatient testing for H. pylori. Of these, only 31% restricted testing to children aged >5 years. Most recommended testing for H. pylori in guideline‐recommended conditions; some would not treat infected patients. Ninety‐seven percent would test for H. pylori in a child with new duodenal ulcer (DU), 79% in a child with a history of DU, and 91% in a child with new gastric ulcer. However, only 86%, 60%, and 91%, respectively, would treat H. pylori infection in those conditions. A proton pump inhibitor (PPI)‐based triple regimen was the first‐choice therapy for 78% of respondents. Correct estimates of rates of resistance to amoxicillin, clarithromycin, metronidazole, and tetracycline were 10%, 17%, 43%, and 12%, respectively. Eighty‐six percent believed there was insufficient research on H. pylori in children.ConclusionsNorth American pediatric gastroenterologists seem well informed about H. pylori infection in children despite the lack of published guidelines at the time of survey. Knowledge about antibiotic resistance rates was deficient. Most offered some outpatient testing for H. pylori and would test children with ulcer disease. However, some would not treat patients based on a positive result.
Abstract 14527: AI-ECG is a Cost-Effective Early Screening Tool for Heart Failure With Reduced Ejection Fraction
Sobiesk, Matthew, Hegstrom, Lars , Rincón-Hekking, John , Friedman, Paul A. , Ardhanari, Sankar , Barve, Rakesh , Pawlowski, Colin , López-Jiménez, Francisco , Kapa, Suraj , Attia, Zachi I. , Soundararajan, Venky , Awasthi, Samir

Circulation | December 19, 2023 | Volume: 148 | Issue: Suppl_1 | Pages: No page available

10.1161/circ.148.suppl_1.14527 Get It

Background: Early diagnosis of heart failure with reduced ejection fraction (HFrEF) can lead to reduced healthcare costs and improved outcomes. In this study, we evaluated the economic effectiveness of an AI algorithm for detecting low ejection fraction using 12-lead ECG data. Aims: The primary aim was to estimate the health economic impact of the AI-ECG algorithm intervention to detect low ejection fraction. Methods: The study population consisted of 113,719 individuals without a prior history of HFrEF who visited a multistate health system between 2010-2018 with 12-lead ECG data and an echocardiogram within 1 year. The AI-ECG algorithm was run retrospectively, and projected costs were estimated assuming each patient incurred the average cost based on their age group and AI-detected heart failure stage. Hospitalization costs were estimated using Medicare reimbursement rates, and economic benefits from increased survival were estimated using a willingness to pay of $50,000 per quality-adjusted life year (QALY) gained. Results: At the optimal model threshold, the total cost savings per patient (including benefits from QALYs gained) for the AI-ECG algorithm vs. standard-of-care on the overall study population were projected to be $79.11 (95% CI: [$53.77, $104.44]) and $124.93 (95% CI: [$83.99, $165.88]) for the 2 and 4 year periods, respectively. For patients over 50 years old, the projected total cost savings were $85.56 (95% CI: [$56.35, $114.78]) and $135.28 (95% CI: [$88.18, $182.38]) per patient for the 2 and 4 year periods, respectively. See Figure. Conclusions: The AI-ECG algorithm to detect low ejection fraction is a cost-effective early screening tool for HFrEF.
Dural Arteriovenous Fistulas With Cognitive Impairment: Angiographic Characteristics and Treatment Outcomes
Sanchez, Sebastian , Hayakawa, M. , Sheehan, Jason P. , Kim, Louis J. , Levitt, Michael R. , Meyer, R. Michael, Guniganti, Ridhima , Kansagra, Akash P. , Brinjikji, Waleed , Bulters, Diederik , Durnford, Andrew , Fox, W. Christopher, Polifka, Adam , Gross, Bradley A. , Kwasnicki, Amanda , Starke, Robert M., Chen, Stephanie H. , Dijk, J. Marc C. van , Potgieser, Adriaan R. E., Satomi, Junichiro, Tada, Yoshiteru , Abla, Adib A. , Winkler, Ethan A. , Zipfel, Gregory J. , Alaraj, Ali , Samaniego, Edgar A , Levitt, Michael R , Alaraj, Ali , van DijK, J Marc C , Abla, Adib , Bulters, Diederik O , Wendt, Linder , Chen, Ching‐Jen , Kim, Louis J. , Abecassis, Isaac Josh , Lanzino, Giuseppe , Giordan, Enrico , Fox, W Christopher , Smith, Jessica , Gross, Bradley , Amin-Hanjani, Sepideh , Phelps, Ryan , Du, Rose , Lai, Pui Man Rosalind , Ortega-Gutierrez, Santiago , Derdeyn, Colin P.

Neurosurgery | December 14, 2023 | Volume: 94 | Issue: 5 | Pages: 1035-1043

10.1227/neu.0000000000002802 | PMID 38095434 Get It

BACKGROUND AND OBJECTIVES: Anecdotal cases of rapidly progressing dementia in patients with dural arteriovenous fistulas (dAVFs) have been reported in small series. However, large series have not characterized these dAVFs. We conducted an analysis of the largest cohort of dAVFs presenting with cognitive impairment (dAVFs-CI), aiming to provide a detailed characterization of this subset of dAVFs. METHODS: Patients with dAVFs-CI were analyzed from the CONDOR Consortium, a multicenter repository comprising 1077 dAVFs. A propensity score matching analysis was conducted to compare dAVFs-CI with Borden type II and type III dAVFs without cognitive impairment (controls). Logistic regression was used to identify angiographic characteristics specific to dAVFs-CI. Furthermore, post-treatment outcomes were analyzed. RESULTS: A total of 60 patients with dAVFs-CI and 60 control dAVFs were included. Outflow obstruction leading to venous hypertension was observed in all dAVFs-CI. Sinus stenosis was significantly associated with dAVFs-CI (OR 2.85, 95% CI: 1.16-7.55, P = .027). dAVFs-CI were more likely to have a higher number of arterial feeders (OR 1.56, 95% CI 1.22-2.05, P < .001) and draining veins (OR 2.05, 95% CI 1.05-4.46, P = .004). Venous ectasia increased the risk of dAVFs-CI (OR 2.38, 95% CI 1.13-5.11, P = .024). A trend toward achieving asymptomatic status at follow-up was observed in patients with successful closure of dAVFs (OR 2.86, 95% CI 0.85-9.56, P = .09) CONCLUSION: Venous hypertension is a key angiographic feature of dAVFs-CI. Moreover, these fistulas present at a mean age of 58 years-old, and exhibit a complex angioarchitecture characterized by an increased number of arteriovenous connections and stenosed sinuses. The presence of venous ectasia further exacerbates the impaired drainage and contributes to the development of dAVFs-CI. Notably, in certain cases, closure of the dAVF has the potential to reverse symptoms.