{
  "abstract": "Objectives To examine the impact of angiographic markers on endovascular therapy (EVT) outcomes in patients with lateral sinus dural arteriovenous fistulas (LSDAVFs).Methods We analyzed the data of 81 patients who completed their first EVT session for LSDAVFs between December 2011 and February 2025 at our institute. Angiograms obtained before EVT were evaluated for LSDAVF characteristics. Shunt patterns were categorized as direct sinus fistula type, compartmental sinus channel type, mural channel type, and bridging vein shunt type. Sinovenous outflow patency was evaluated using the combined conduit score (CCS), a 9-point scoring system with scores ranging from 0 (total occlusion) to 8 (full patency). Multivariate logistic regression and Cox regression were used to identify key parameters associated with complete LSDAVF obliteration after EVT.Results Of the 81 patients, 46 (56.8%) achieved immediate obliteration after EVT. Multivariate logistic regression revealed that a CCS <4, jugular bulb involvement, and ipsilateral meningohypophyseal trunk supply were independent parameters associated with immediate obliteration. After a median imaging follow-up duration of 11.4 months, 36 out of 60 patients (60%) achieved complete obliteration without further treatment. Multivariate Cox regression revealed that a CCS <4 was independently associated with complete obliteration (HR 3.061, P=0.006).Conclusion LSDAVFs with sinovenous outflow restriction, indicated by a CCS <4, were more likely to be obliterated after EVT compared with those without outflow restriction. In patients with LSDAVFs, the CCS may assist in outcome prediction and therapeutic decision-making.",
  "authors": [
    {
      "affiliations": [
        "Department of Radiology, Taipei Hospital, Ministry of Health and Welfare, New Taipei, Taiwan",
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan"
      ],
      "name": "Yong-Sin Hu"
    },
    {
      "affiliations": [
        "Department of Radiology, Taipei Hospital, Ministry of Health and Welfare, New Taipei, Taiwan",
        "Department and Graduate Institute of Forensic Medicine, National Taiwan University College of Medicine, Taipei, Taiwan"
      ],
      "name": "Chia-An Wu"
    },
    {
      "affiliations": [
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan",
        "Department of Radiology, En Chu Kong Hospital of the Hsing Tian Kong Foundation Medical Mission, New Taipei, Taiwan"
      ],
      "name": "Chao-Bao Luo"
    },
    {
      "affiliations": [
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan"
      ],
      "name": "Te-Ming Lin"
    },
    {
      "affiliations": [
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan"
      ],
      "name": "Feng-Chi Chang"
    },
    {
      "affiliations": [
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan"
      ],
      "name": "Hsiu Mei Wu"
    },
    {
      "affiliations": [
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan"
      ],
      "name": "Hong-Jen Chiou"
    },
    {
      "affiliations": [
        "School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan",
        "Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan"
      ],
      "name": "Chung-Jung Lin"
    }
  ],
  "title": "Sinovenous outflow restriction predisposes lateral sinus dural arteriovenous fistulas to obliteration after endovascular therapy",
  "uid": "5e88f634-53fd-5430-87e5-33ebe23966e5"
}