{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T18:28:23Z","timestamp":1793125703650,"version":"4.5.0"},"reference-count":32,"publisher":"American Medical Association (AMA)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"\n Importance<\/jats:title>\n Transradial access (TRA) has emerged as a promising alternative to standard transfemoral access (TFA) for interventional cardiac procedures, but its application for examination of the cerebral circulation has not been tested in a clinical trial.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n To compare the efficacy and safety of TRA with TFA for diagnostic cerebral angiography.<\/jats:p>\n <\/jats:sec>\n \n Design, Setting, and Participants<\/jats:title>\n This investigator-initiated, multicenter, open-label, noninferiority randomized clinical trial with a blinded outcome assessment was conducted at 13 sites in China. Patients eligible for cerebral angiography were randomized between September 15, 2023, and November 4, 2024, with final follow-up performed on November 27, 2024. The primary analysis was performed in the intention-to-treat population; secondary analyses were performed in the per-protocol population.<\/jats:p>\n <\/jats:sec>\n \n Interventions<\/jats:title>\n Patients were randomly allocated to TRA (n\u2009=\u2009431) or TFA (n\u2009=\u2009430) for diagnostic cerebral angiography.<\/jats:p>\n <\/jats:sec>\n \n Main Outcomes and Measures<\/jats:title>\n The primary outcome was the success of diagnostic cerebral angiography. Secondary outcomes were success in achieving an accurate diagnosis, duration of angiography and fluoroscopy, time in bed, and patient-reported satisfaction on an 11-point visual analog scale for pain (ranging from 0 [none] to 10 [worst possible]) within 24 hours after the procedure. The noninferiority margin was an absolute difference of 5% in success of angiographic diagnosis and success of accurate diagnosis.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n A total of 858 patients (median age, 58.4 [IQR, 52.0-67.0] years; 479 [55.8%] male) completed the trial. Success of diagnostic cerebral angiography in the TRA group was lower than that in the TFA group (392 of 431 [91.0%] vs 409 of 427 [95.8%]; difference, \u22124.8 percentage points [pp] [95% CI, \u22128.1 to \u22121.5 pp]; relative risk [RR], 0.95 [95% CI, 0.92-0.98];\n P<\/jats:italic>\n \u2009=\u2009.46 for noninferiority test). The success rate of accurate diagnosis was 78.9% in the TRA group vs 91.1% in the TFA group (difference, \u221212.2 pp [95% CI, \u221216.9 to \u22127.5 pp]; RR, 0.87 [95% CI, 0.82-0.92];\n P<\/jats:italic>\n \u2009=\u2009.99 for noninferiority test). Compared with the TFA group, the TRA group had longer median times for angiography (33.7 [IQR, 23.0-40.0] vs 38.7 [IQR, 26.0-47.0] minutes;\n P<\/jats:italic>\n \u2009&amp;lt;\u2009.001) and fluoroscopy (10.6 [IQR, 5.6-12.9] vs 11.8 [IQR, 6.2-15.0] minutes;\n P<\/jats:italic>\n \u2009=\u2009.02); the TRA group had significantly shorter median time in bed (188.4 [IQR, 3.0-180.0] vs 1079.0 [IQR, 842.0-1366.0] minutes;\n P<\/jats:italic>\n \u2009&amp;lt;\u2009.001) and lower median pain scores (0.5 [IQR, 0.0-1.0] vs 0.7 [IQR, 0.0-1.0];\n P<\/jats:italic>\n \u2009&amp;lt;\u2009.001). Overall angiography complications were comparable between the groups (19 of 445 [4.3%] vs 25 of 413 [6.1%];\n P<\/jats:italic>\n \u2009=\u2009.28), but TRA had more radial artery puncture failures than TFA.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions and Relevance<\/jats:title>\n In this randomized clinical trial of patients undergoing diagnostic cerebral angiography, TRA was not shown to be noninferior to TFA with regard to the success rate of diagnostic cerebral angiography. Additional research, including superiority trials, is needed to clearly define the comparative benefits of TRA and TFA.<\/jats:p>\n <\/jats:sec>\n \n Trial Registration<\/jats:title>\n \n ClinicalTrials.gov Identifier:\n NCT05401669<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2026.1929","type":"journal-article","created":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T15:30:27Z","timestamp":1773934227000},"page":"e261929","source":"Crossref","is-referenced-by-count":5,"title":["Transradial vs Transfemoral Access for Cerebral Angiography"],"prefix":"10.1001","volume":"9","author":[{"given":"Wei","family":"Ni","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heng","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiabin","family":"Su","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ya","family":"Peng","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, The First People\u2019s Hospital of Changzhou, Changzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dengliang","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiqing","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 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