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188 citation(s) found for "Kadirvel, Ramanathan".

E-221 Simply the (B)EST : what the neurointerventionalist needs to know about (bleomycin) electrosclerotherapy for vascular anomalies
Alateya, Aysha, Alateya, Zain, Kadirvel, R, Kallmes, D, Brinjikji, Waleed , Ognard, Julien , Hajj, G El , Ghozy, Sherief , Kadirvel, Ramanathan , Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A242.2-A243

10.1136/jnis-2025-snis.336 Get It

E-206 Quality of life in patients with spontaneous intracranial hypotension: a systematic review and meta-analysis
Cutsforth‐Gregory, Jeremy K. , Kadirvel, Ramanathan , Kallmes, David F. , Brinjikji, Waleed , Ognard, Julien , Hajj, G El , Ghozy, Sherief , Madhavan, Ajay A.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A233.1-A233

10.1136/jnis-2025-snis.321 Get It

E-194 Microstructural brain changes assessment using neurite orientation dispersion and density imaging (NODDI) in a rodent stroke model of thrombectomy on a clinical 3T MR-scanner
Moëlo, Cloé , Caron, Margot , Chéchin, D., Kadirvel, Ramanathan , Ognard, Julien , Caron, M, Hajj, G El , Salem, D. Ben , Timsit, Serge

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A224.1-A224

10.1136/jnis-2025-snis.309 Get It

E-122 Endovascular rodent model using tail access and ultrasound guidance
Lortscher, Sarah, Bayraktar, Evren , Oliver, A, Brinjikji, W, Kadirvel, R, Kallmes, D, Ognard, Julien , Hajj, G El , Ding, Yonghong , Brinjikji, W, Kadirvel, Ramanathan , Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A173.2-A174

10.1136/jnis-2025-snis.238 Get It

E-106 The effects of admission hyperglycemia and diabetes mellitus on mechanical thrombectomy outcomes: a systematic review and meta-analysis
Bilgin, Cem , Bilgin, G Belge, Jabal, Mohamed Sobhi , Kobeissi, H, Kadirvel, Ramanathan , Brinjikji, W, Kallmes, D, Rabinstein, A, Ghozy, Sherief , Senol, Y, Orscelik, Atakan , Brinjikji, W, Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A163.1-A163

10.1136/jnis-2025-snis.222 Get It

E-060 The rabbit superior mesenteric artery as an in vivo model for perforator artery occlusion assessment after flow diversion
Cortese, Jonathan, Lortscher, Sarah, Kallmes, David F. , Kadirvel, Ramanathan , Cortese, Jonathan , Bayraktar, E, Dai, Daying , Ognard, Julien , Zarrintan, Armin , Hajj, G El , Ghozy, Sherief , Ding, Yonghong

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A132.2-A133

10.1136/jnis-2025-snis.176 Get It

E-052 Advances in endovascular brain computer interface : systematic review and future implications
Kadirvel, R, Kallmes, D, Brinjikji, Waleed , Ognard, Julien , Hajj, G El , Verma, Onam , Ghozy, Sherief , Kadirvel, Ramanathan , Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A127.2-A128

10.1136/jnis-2025-snis.168 Get It

E-038 Ex vivo characterization of the compositional and molecular factors associated with tPA resistance of clots retrieved from stroke patients
Alsereidi, F, Mereuta, O, Ranatunga, Wasantha , Kallmes, David F. , Brinjikji, Waleed , Kadirvel, Ramanathan , Reda, A, Ramarajan, Madan Gopal , Alsereidi, Fatmah R. , Ghozy, Sherief , Dai, Daying , Kandasamy, Richard K.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A117.1-A117

10.1136/jnis-2025-snis.154 Get It

E-033 Cerebrospinal fluid-venous leak embolization in swine: a novel animal model
Cortese, Jonathan, Bilgin, Cem , Kadirvel, Ramanathan , Kallmes, D, Brinjikji, W, Bayraktar, E, Cortese, Jonathan , Ognard, Julien , Hajj, G El , Brinjikji, W

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A112-A113

10.1136/jnis-2025-snis.149 Get It

Petechial hemorrhage in mechanical thrombectomy for distal and medium-vessel occlusions: technical considerations and outcomes
Baker, Amanda , Adeeb, Nimer , Henninger, Nils , Sundararajan, Sri Hari , Khalife, Jane, Tan, Benjamin Yong‐Qiang , Regenhardt, Robert W. , Heit, Jeremy J. , Cancelliere, Nicole M., Fiehler, Jens, Puri, Ajit S., Dyzmann, Christian , Colasurdo, Marco, Filipe, João Pedro , Harker, Pablo, Abdalkader, Mohamad , Marotta, Thomas R. , Spears, Julian , Jabbour, Pascal , Biswas, Arundhati , Clarençon, Frédéric , Varela, Ricardo , Gonzalez, Nestor R. , Möhlenbruch, Markus , Costalat, Vincent , Gory, Benjamin , Yedavalli, Vivek , Stracke, Christian Paul , Shaikh, Hamza, Liebeskind, David S., Alexandre, Andrea , Faizy, Tobias D., Tancredi, Illario , Kalsoum, Erwah , Lubicz, Boris , Patel, Aman B. , Guenego, Adrien , Altschul, David , _, _, Amllay, Abdelaziz, Gopinathan, Anil, Dusart, Anne , Capirossi, Carolina , Mounayer, Charbel, Hsieh, Cheng-Yang, Stapleton, Christopher J. , Bellante, Flavio, Shaikh, Hamza , Cuellar-Saenz, Hugo H., Rabinov, James D. , Berge, Jérôme , Martinez-Gutierrez, Juan Carlos, Premat, Kévin , Chervak, Lina , Elhorany, Mahmoud, Quintero‐Consuegra, Miguel , Kan, Peter , Khandelwal, Priyank , Kadirvel, Ramanathan , Dofuku, Shogo , Nedelcu, Simona, Tjoumakaris, Stavropoula I, Barreau, Xavier, Liebeskind, David S. , Liebeskind, David S. , Heit, Jeremy J , Altschul, David J , Gonzalez, Nestor R , Regenhardt, Robert W , Yedavalli, Vivek S , Henninger, Nils , Tan, Benjamin Yq , Alexandre, Andrea M , Varela, Ricardo , Essibayi, Muhammed Amir , Salim, Hamza , Fazzari, Melissa J. , Khatri, Deepak , Baker, Amanda, Musmar, Basel , Kühn, Anna Luisa , Khalife, Jane , Ghozy, Sherief , Scarcia, Luca , Yeo, Leonard Ll , Cancelliere, Nicole M , Rouchaud, Aymeric , Sheth, Sunil A , Puri, Ajit S , Colasurdo, Marco , Renieri, Leonardo , Harker, Pablo , Aziz, Yasmin , Radu, Răzvan Alexandru , Klein, Piers , Ota, Takahiro , Mowla, Ashkan , Naamani, Kareem El , Jabbour, Pascal , Siegler, James E. , Nguyen, Thanh N. , Gory, Benjamin , Hecker, Constantin , Marnat, Gaultier , Griessenauer, Christoph J. , Pedicelli, Alessandro , Faizy, Tobias D. , Mendes Pereira, Vitor , Dmytriw, Adam A. , _, _, Amllay, Abdelaziz , Vagal, Achala , Schiphorst, Adrien ter , Thomas, Ajith J , Mounayer, Charbel , Weyland, Charlotte S. , Hsieh, Cheng‐Yang , Forestier, Géraud , Cuellar, Hugo , Valente, Iacopo , Sibon, Igor , Jesser, Jessica , Martinez-Gutierrez, Juan Carlos , Meyer, Lukas , Elhorany, Mahmoud , Aziz‐Sultan, Mohammad Ali , Killer-Oberpfalzer, Monika , Khandelwal, Priyank , Fahed, Robert , Salazar‐Marioni, Sergio , Nedelcu, Simona , Tjoumakaris, Stavropoula , Saleme, Suzana , Barreau, Xavier

Journal of Neurosurgery | July 4, 2025 | Volume: 143 | Issue: 6 | Pages: 1501-1513

10.3171/2025.3.jns243030 | PMID 40614268 Get It

OBJECTIVE Mechanical thrombectomy (MT) is well established for large-vessel occlusion (LVO) strokes, but its safety in distal and medium-vessel occlusions (DMVOs) requires further investigation. This study analyzed the relationship between procedural approaches, petechial hemorrhage (PetH), and clinical outcomes in DMVO thrombectomy, with particular attention to technical considerations and the complex interplay between tissue injury and hemorrhagic complications. METHODS A retrospective cohort study was conducted on DMVO stroke patients treated with MT at 37 stroke centers worldwide from 2016 to 2024. Patients were categorized based on follow-up imaging into those with or without PetH. Four logistic regression models analyzed the association of PetH with favorable functional outcomes (modified Rankin Scale score ≤ 2) at 90 days, early neurological improvement (≥ 4-point National Institutes of Health Stroke Scale score decrease at 24 hours), all-cause mortality, and independent determinants of PetH. Adjusted odds ratios (aORs), 95% confidence intervals, and p values were reported. RESULTS Of 1428 patients, 439 (30.7%) developed PetH. Factors independently associated with PetH were multiple thrombectomy passes (aOR 1.58, 95% CI 1.21–2.06; p = 0.001), IV thrombolysis (aOR 1.31, 95% CI 1.01–1.69; p = 0.04), and the combined use of a stent retriever with aspiration as the first-line method compared with aspiration alone (aOR 1.66, 95% CI 1.15–2.38; p = 0.007). Conversely, general anesthesia (aOR 0.55, 95% CI 0.40–0.77; p < 0.001), higher Alberta Stroke Program Early CT Scores (aOR 0.76, 95% CI 0.69–0.83; p < 0.001), and successful recanalization (aOR 0.56, 95% CI 0.39–0.80; p = 0.002) were significantly associated with a lower odds of PetH. PetH was associated with a decreased odds of favorable functional outcomes (aOR 0.51, 95% CI 0.36–0.73; p < 0.001), reduced early neurological improvement (aOR 0.59, 95% CI 0.44–0.79; p < 0.001), and increased all-cause mortality (aOR 1.84, 95% CI 1.23–2.76; p < 0.001). CONCLUSIONS PetH is a frequent sequela following MT in DMVO strokes and is associated with poorer outcomes, likely reflecting underlying ischemic injury rather than direct causation. Procedural factors influence PetH risk, suggesting medical treatment as first-line therapy for DMVOs, with MT reserved for refractory cases using less aggressive approaches.