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2. Volumetric microscopy of cerebral arteries with a miniaturized optical coherence tomography imaging probe

Author

Pereira, Vitor M., primary, Lylyk, Pedro, additional, Cancelliere, Nicole, additional, Lylyk, Pedro N., additional, Lylyk, Ivan, additional, Anagnostakou, Vania, additional, Bleise, Carlos, additional, Nishi, Hidehisa, additional, Epshtein, Mark, additional, King, Robert M., additional, Shazeeb, Mohammed Salman, additional, Puri, Ajit S., additional, Liang, Conrad W., additional, Hanel, Ricardo A., additional, Spears, Julian, additional, Marotta, Thomas R., additional, Lopes, Demetrius K., additional, Gounis, Matthew J., additional, and Ughi, Giovanni J., additional

Published
2024
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3. Regional Contributions to Poststroke Disability in Endovascular Therapy

Author

Sheth, Sunil A, Malhotra, Konark, Liebeskind, David S, Liang, Conrad W, Yoo, Albert J, Jahan, Reza, Nogueira, Raul G, Pereira, Vitor, Gralla, Jan, Albers, Greg, Goyal, Mayank, and Saver, Jeffrey L

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Stroke, Brain Disorders, Clinical Research, ASPECTS, Eloquence, Large vessel occlusion, Neuroimaging, Neurosciences
Abstract

Background and purposeThe relative contribution of each Alberta Stroke Program Early CT Score (ASPECTS) region to poststroke disability likely varies across regions. Determining the relative weights of each ASPECTS region may improve patient selection for endovascular stroke therapy (EST).MethodsIn the combined Solitaire Flow Restoration with the Intention for Thrombectomy (SWIFT), Solitaire Flow Restoration Thrombectomy for Acute Revascularization (STAR), and Solitaire Flow Restoration with the Intention for Thrombectomy as Primary Endovascular Treatment (SWIFT PRIME) databases, we identified patients treated with the Solitaire stent retriever. Using 24-h CT scan, a multivariate ordinal regression was used to determine the relative contribution of each ASPECTS region to clinical outcome separately in each hemisphere. The coefficients from the regression were used to create a weighted ASPECTS (wASPECTS), which was compared with the original ASPECTS to predict 90-day modified Rankin Scale disability outcomes in an independent validation cohort.ResultsAmong 342 patients treated with EST, the average age was 67 years, 57% were female, and the median National Institutes of Health Stroke Scale (NIHSS) score was 17 (IQR 13-20). The median ASPECTS at presentation was 8 (IQR 7-10). The most commonly involved ASPECTS regions on 24-h CT were the lentiform nuclei (70%), insula (55%), and caudate (52%). In multivariate analysis, preservation of M6 (β = 9.7) and M4 (β = 4.4) regions in the right hemisphere was most strongly predictive of good outcome. For the left hemisphere, M6 (β = 5.5), M5 (β = 4.1), and M3 (β = 3.1) generated the greatest parameter estimates, though they did not reach statistical significance. A wASPECTS incorporating all 20 parameter estimates resulted in improved discrimination against the original ASPECTS in the independent cohort (C-statistic 0.78 vs. 0.67, right hemisphere).ConclusionsFor both right and left hemisphere, preservation of the high cortical regions was more strongly associated with improved outcomes compared to the deep regions. Our findings support taking into consideration the location and relative weightings of the involved ASPECTS regions when evaluating a patient for EST.

Published
2018

4. To Tube or Not to Tube? The Role of Intubation during Stroke Thrombectomy

Author

Takahashi, Courtney, Liang, Conrad W, Liebeskind, David S, and Hinman, Jason D

Subjects
Clinical Research, Brain Disorders, Stroke, Neurosciences, acute stroke, thrombectomy, intubation, endovascular therapy, clot retrieval, Clinical Sciences, Psychology
Abstract

In the 10 years since the FDA first cleared the use of endovascular devices for the treatment of acute stroke, definitive evidence that such therapy improves outcomes remains lacking. The decision to intubate patients undergoing stroke thrombectomy impacts multiple variables that may influence outcomes after stroke. Three main areas where intubation may deleteriously affect acute stroke management include the introduction of delays in revascularization, fluctuations in peri-procedural blood pressure, and hypocapnia, resulting in cerebral vasoconstriction. In this mini-review, we discuss the evidence supporting these limitations of intubation during stroke thrombectomy and encourage neurohospitalists, neurocritical care specialists, and neurointerventionalists to carefully consider the decision to intubate during thrombectomy and provide strategies to avoid potential complications associated with its use in acute stroke.

Published
2014

6. Abstract Number ‐ 158: Balloon Guide Catheter Effect on First Pass and Revascularization Success.

Author

Modzelewski, Michael D, primary, Liang, Conrad W, additional, Perlman, Sabrina M, additional, Duggan, Mark, additional, Toor, Harjyot, additional, Sheth, Sunil A, additional, Martinez, Evelin Duran, additional, Chao, Kuo, additional, Feng, Lei, additional, Noufal, Mazen, additional, Nguyen, Binh V, additional, Mowji, Pankaj J, additional, and Sangha, Navdeep, additional

Published
2023
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9. Global Impact of COVID-19 on Stroke Care and Intravenous Thrombolysis

Author

Nogueira, Raul G, Qureshi, Muhammed M, Abdalkader, Mohamad, Martins, Sheila Ouriques, Yamagami, Hiroshi, Qiu, Zhongming, Mansour, Ossama Yassin, Sathya, Anvitha, Czlonkowska, Anna, Tsivgoulis, Georgios, Aguiar de Sousa, Diana, Demeestere, Jelle, Mikulik, Robert, Vanacker, Peter, Siegler, James E, Kõrv, Janika, Biller, Jose, Liang, Conrad W, Sangha, Navdeep S, Zha, Alicia M, Czap, Alexandra L, Holmstedt, Christine Anne, Turan, Tanya N, Ntaios, George, Malhotra, Konark, Tayal, Ashis, Loochtan, Aaron, Ranta, Annamarei, Mistry, Eva A, Alexandrov, Anne W, Huang, David Y, Yaghi, Shadi, Raz, Eytan, Sheth, Sunil A, Mohammaden, Mahmoud H, Frankel, Michael, Bila Lamou, Eric Guemekane, Aref, Hany M, Elbassiouny, Ahmed, Hassan, Farouk, Menecie, Tarek, Mustafa, Wessam, Shokri, Hossam M, Roushdy, Tamer, Sarfo, Fred S, Alabi, Tolulope Oyetunde, Arabambi, Babawale, Nwazor, Ernest O, Sunmonu, Taofiki Ajao, Wahab, Kolawole, Yaria, Joseph, Mohammed, Haytham Hussein, Adebayo, Philip B, Riahi, Anis D, Ben Sassi, Samia, Gwaunza, Lenon, Ngwende, Gift Wilson, Sahakyan, David, Rahman, Aminur, Ai, Zhibing, Bai, Fanghui, Duan, Zhenhui, Hao, Yonggang, Huang, Wenguo, Li, Guangwen, Li, Wei, Liu, Ganzhe, Luo, Jun, Shang, Xianjin, Sui, Yi, Tian, Ling, Wen, Hongbin, Wu, Bo, Yan, Yuying, Yuan, Zhengzhou, Zhang, Hao, Zhang, Jun, Zhao, Wenlong, Zi, Wenjie, Leung, Thomas W, Chugh, Chandril, Huded, Vikram, Menon, Bindu, Pandian, Jeyaraj Durai, Sylaja, P N, Usman, Fritz Sumantri, Farhoudi, Mehdi, Hokmabadi, Elyar Sadeghi, Horev, Anat, Reznik, Anna, Hoffmann, Rotem Sivan, Ohara, Nobuyuki, Sakai, Nobuyuki, Watanabe, Daisuke, Yamamoto, Ryoo, Doijiri, Ryosuke, Tokuda, Naoki, Yamada, Takehiro, Terasaki, Tadashi, Yazawa, Yukako, Uwatoko, Takeshi, Dembo, Tomohisa, Shimizu, Hisao, Sugiura, Yuri, Miyashita, Fumio, Fukuda, Hiroki, Miyake, Kosuke, Shimbo, Junsuke, Sugimura, Yusuke, Yagita, Yoshiki, Takenobu, Yohei, Matsumaru, Yuji, Yamada, Satoshi, Kono, Ryuhei, Kanamaru, Takuya, Yamazaki, Hidekazu, Sakaguchi, Manabu, Todo, Kenichi, Yamamoto, Nobuaki, Sonoda, Kazutaka, Yoshida, Tomoko, Hashimoto, Hiroyuki, Nakahara, Ichiro, Kondybayeva, Aida, Faizullina, Kamila, Kamenova, Saltanat, Zhanuzakov, Murat, Baek, Jang-Hyun, Hwang, Yangha, Lee, Jin Soo, Lee, Si Baek, Moon, Jusun, Park, Hyungjong, Seo, Jung Hwa, Seo, Kwon-Duk, Sohn, Sung Il, Young, Chang Jun, Ahdab, Rechdi, Wan Zaidi, Wan Asyraf, Aziz, Zariah Abdul, Basri, Hamidon Bin, Chung, Law Wan, Ibrahim, Aznita Binti, Ibrahim, Khairul Azmi, Looi, Irene, Tan, Wee Yong, Yahya, Nafisah Wan, Groppa, Stanislav, Leahu, Pavel, Al Hashmi, Amal M, Imam, Yahia Zakaria, Akhtar, Naveed, Pineda-Franks, Maria Carissa, Co, Christian Oliver, Kandyba, Dmitriy, Alhazzani, Adel, Al-Jehani, Hosam, Tham, Carol Huilian, Mamauag, Marlie Jane, Venketasubramanian, Narayanaswamy, Chen, Chih-Hao, Tang, Sung-Chun, Churojana, Anchalee, Akil, Esref, Aykaç, Ozlem, Ozdemir, Atilla Ozcan, Giray, Semih, Hussain, Syed Irteza, John, Seby, Le Vu, Huynh, Tran, Anh Duc, Nguyen, Huy Hoang, Pham, Thong Nhu, Nguyen, Thang Huy, Nguyen, Trung Quoc, Gattringer, Thomas, Enzinger, Christian, Killer-Oberpfalzer, Monika, Bellante, Flavio, De Blauwe, Sofie, Vanhooren, Geert, De Raedt, Sylvie, Dusart, Anne, Lemmens, Robin, Ligot, Noemie, Rutgers, Matthieu Pierre, Yperzeele, Laetitia, Alexiev, Filip, Sakelarova, Teodora, Bedeković, Marina Roje, Budincevic, Hrvoje, Cindrić, Igor, Hucika, Zlatko, Ozretic, David, Saric, Majda Seferovic, Pfeifer, Frantiek, Karpowic, Igor, Cernik, David, Sramek, Martin, Skoda, Miroslav, Hlavacova, Helena, Klecka, Lukas, Koutny, Martin, Vaclavik, Daniel, Skoda, Ondrej, Fiksa, Jan, Hanelova, Katerina, Nevsimalova, Miroslava, Rezek, Robert, Prochazka, Petr, Krejstova, Gabriela, Neumann, Jiri, Vachova, Marta, Brzezanski, Henryk, Hlinovsky, David, Tenora, Dusan, Jura, Rene, Jurák, Lubomír, Novak, Jan, Novak, Ales, Topinka, Zdenek, Fibrich, Petr, Sobolova, Helena, Volny, Ondrej, Christensen, Hanne Krarup, Drenck, Nicolas, Iversen, Helle Klingenberg, Simonsen, Claus Z, Truelsen, Thomas Clement, Wienecke, Troels, Vibo, Riina, Gross-Paju, Katrin, Toomsoo, Toomas, Antsov, Katrin, Caparros, Francois, Cordonnier, Charlotte, Dan, Maria, Faucheux, Jean-Marc, Mechtouff, Laura, Eker, Omer, Lesaine, Emilie, Ondze, Basile, Peres, Roxane, Pico, Fernando, Piotin, Michel, Pop, Raoul, Rouanet, Francois, Gubeladze, Tatuli, Khinikadze, Mirza, Lobjanidze, Nino, Tsikaridze, Alexander, Nagel, Simon, Ringleb, Peter Arthur, Rosenkranz, Michael, Schmidt, Holger, Sedghi, Annahita, Siepmann, Timo, Szabo, Kristina, Thomalla, Götz, Palaiodimou, Lina, Sagris, Dimitrios, Kargiotis, Odysseas, Klivenyi, Peter, Szapary, Laszlo, Tarkanyi, Gabor, Adami, Alessandro, Bandini, Fabio, Calabresi, Paolo, Frisullo, Giovanni, Renieri, Leonardo, Sangalli, Davide, Pirson, Anne V, Uyttenboogaart, Maarten, van den Wijngaard, Ido, Kristoffersen, Espen Saxhaug, Brola, Waldemar, Fudala, Małgorzata, Horoch-Lyszczarek, Ewa, Karlinski, Michal, Kazmierski, Radoslaw, Kram, Pawel, Rogoziewicz, Marcin, Kaczorowski, Rafal, Luchowski, Piotr, Sienkiewicz-Jarosz, Halina, Sobolewski, Piotr, Fryze, Waldemar, Wisniewska, Anna, Wiszniewska, Malgorzata, Ferreira, Patricia, Ferreira, Paulo, Fonseca, Luisa, Marto, João Pedro, Pinho E Melo, Teresa, Nunes, Ana Paiva, Rodrigues, Miguel, Cruz, Vítor Tedim, Falup-Pecurariu, Cristian, Krastev, Georgi, Mako, Miroslav, Alonso de Leciñana, María, Arenillas, Juan F, Ayo-Martin, Oscar, Culebras, Antonio Cruz, Tejedor, Exuperio Diez, Montaner, Joan, Pérez-Sánchez, Soledad, Tola Arribas, Miguel Angel, Vasquez, Alejandro Rodriguez, Mazya, Michael, Bernava, Gianmarco, Brehm, Alex, Machi, Paolo, Fischer, Urs, Gralla, Jan, Michel, Patrik L, Psychogios, Marios-Nikos, Strambo, Davide, Banerjee, Soma, Krishnan, Kailash, Kwan, Joseph, Butt, Asif, Catanese, Luciana, Demchuk, Andrew, Field, Thalia, Haynes, Jennifer, Hill, Michael D, Khosravani, Houman, Mackey, Ariane, Pikula, Aleksandra, Saposnik, Gustavo, Scott, Courtney Anne, Shoamanesh, Ashkan, Shuaib, Ashfaq, Yip, Samuel, Barboza, Miguel A, Barrientos, Jose Domingo, Portillo Rivera, Ligia Ibeth, Gongora-Rivera, Fernando, Novarro-Escudero, Nelson, Blanco, Anmylene, Abraham, Michael, Alsbrook, Diana, Altschul, Dorothea, Alvarado-Ortiz, Anthony J, Bach, Ivo, Badruddin, Aamir, Barazangi, Nobl, Brereton, Charmaine, Castonguay, Alicia, Chaturvedi, Seemant, Chaudhry, Saqib A, Choe, Hana, Choi, Jae H, Dharmadhikari, Sushrut, Desai, Kinjal, Devlin, Thomas G, Doss, Vinodh T, Edgell, Randall, Etherton, Mark, Farooqui, Mudassir, Frei, Don, Gandhi, Dheeraj, Grigoryan, Mikayel, Gupta, Rishi, Hassan, Ameer E, Helenius, Johanna, Kaliaev, Artem, Kaushal, Ritesh, Khandelwal, Priyank, Khawaja, Ayaz M, Khoury, Naim N, Kim, Benny S, Kleindorfer, Dawn O, Koyfman, Feliks, Lee, Vivien H, Leung, Lester Y, Linares, Guillermo, Linfante, Italo, Lutsep, Helmi L, Macdougall, Lisa, Male, Shailesh, Malik, Amer, Masoud, Hesham, McDermott, Molly, Mehta, Brijesh P, Min, Jiangyong, Mittal, Manoj, Morris, Jane G, Multani, Sumeet S, Nahab, Fadi, Nalleballe, Krishna, Nguyen, Claude B, Novakovic-White, Roberta, Ortega-Gutierrez, Santiago, Rahangdale, Rahul H, Ramakrishnan, Pankajavalli, Romero, Jose Rafael, Rost, Natalia, Rothstein, Aaron, Ruland, Sean, Shah, Ruchir, Sharma, Malveeka, Silver, Brian, Simmons, Marc, Singh, Abhishek, Starosciak, Amy K, Strasser, Sheryl L, Szeder, Viktor, Teleb, Mohamed, Tsai, Jenny P, Voetsch, Barbara, Balaguera, Oscar, Pujol Lereis, Virginia A, Luraschi, Adriana, Almeida, Marcele Schettini, Cardoso, Fabricio Buchdid, Conforto, Adriana, De Deus Silva, Leonardo, Giacomini, Luidia Varrone, Lima, Fabricio Oliveira, Longo, Alexandre L, Magalhães, Pedro Sc, Martins, Rodrigo Targa, Mont'alverne, Francisco, Mora Cuervo, Daissy Liliana, Rebello, Leticia Costa, Valler, Lenise, Zetola, Viviane Flumignan, Lavados, Pablo M, Navia, Victor, Olavarría, Verónica V, Almeida Toro, Juan Manuel, Ricardo Amaya, Pablo Felipe, Bayona, Hernan, Corredor-Quintero, Angel Basilio, Rivera Ordonez, Carlos Eduardo, Mantilla Barbosa, Diana Katherine, Lara, Osvaldo, Patiño, Mauricio R, Diaz Escobar, Luis Fernando, Dejesus Melgarejo Farina, Donoband Edson, Villamayor, Analia Cardozo, Zelaya Zarza, Adolfo Javier, Barrientos Iman, Danny Moises, Kadota, Liliana Rodriguez, Campbell, Bruce, Hankey, Graeme J, Hair, Casey, Kleinig, Timothy, Ma, Alice, Martins, Rodrigo Tomazini, Sahathevan, Ramesh, Thijs, Vincent, Salazar, Daniel, Yuan-Hao Wu, Teddy, Haussen, Diogo C, Liebeskind, David, Yavagal, Dileep, Jovin, Tudor G, Zaidat, Osama O, and Nguyen, Thanh N

Subjects
610 Medicine & health
Abstract

OBJECTIVE The objectives of this study were to measure the global impact of the pandemic on the volumes for intravenous thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with two control 4-month periods. METHODS We conducted a cross-sectional, observational, retrospective study across 6 continents, 70 countries, and 457 stroke centers. Diagnoses were identified by their ICD-10 codes and/or classifications in stroke databases. RESULTS There were 91,373 stroke admissions in the 4 months immediately before compared to 80,894 admissions during the pandemic months, representing an 11.5% (95%CI, -11.7 to - 11.3, p

Published
2021
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12. Education Research: Challenges Faced by Neurology Trainees in a Neuro-Intervention Career Track

Author

Liang, Conrad W., primary, Das, Saurav, additional, Ortega-Gutierrez, Santiago, additional, Liebeskind, David S., additional, Grotta, James C., additional, Jovin, Tudor G., additional, Nguyen, Thanh N., additional, Nogueira, Raul G., additional, Masoud, Hesham, additional, Elijovich, Lucas, additional, Zaidat, Osama O., additional, Hassan, Ameer E., additional, Linfante, Italo, additional, Fifi, Johanna T., additional, and Sheth, Sunil A., additional

Published
2021
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15. Abstract WP391: Survey of Neurology Post-Graduate Trainees' Exposure to Interventional Neurology: Report From the Society of Vascular and Interventional Neurology Education Committee

Author

Liang, Conrad W, primary, Ortega, Santiago, additional, Liebeskind, David S, additional, Grotta, James C, additional, Jovin, Tudor G, additional, Nguyen, Thanh N, additional, Nogueira, Raul G, additional, Masoud, Hesham, additional, Elijovich, Lucas, additional, Zaidat, Osama O, additional, Hassan, Ameer, additional, Linfante, Italo, additional, and Sheth, Sunil A, additional

Published
2019
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17. Lipid rescue of massive verapamil overdose: a case report

Author

Liang Conrad W, Diamond Sarah J, and Hagg Daniel S

Subjects
Medicine
Abstract

Abstract Introduction Massive intentional verapamil overdose is a toxic ingestion which can cause multiorgan system failure and has no currently known antidote. Case Presentation The patient is a 41-year-old Caucasian woman who ingested 19.2 g of sustained release verapamil in a suicide attempt. Our patient became hypotensive requiring three high-dose vasopressors to maintain arterial pressure. She also developed acute respiratory failure, bradycardic ventricular rhythm necessitating continuous transvenous pacing, and anuric renal failure. Our patient was treated with intravenous calcium, bicarbonate, hyperinsulinemic euglycemic therapy and continuous venovenous hemodialysis without success. On the fourth day after hospital admission continuous intravenous lipid therapy was initiated. Within three hours of beginning lipid therapy, our patient's vasopressor requirement decreased by half. Within 24 hours, she was on minimal vasopressor support and regained an underlying junctional rhythm. After three days of lipid infusion, she no longer required inotropic agents to maintain blood pressure or pacing to maintain stable hemodynamics. Conclusions Intravenous fat emulsion therapy may be an effective antidote for massive verapamil toxicity.

Published
2011
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21. Global Impact of COVID-19 on Stroke Care and IV Thrombolysis

Author

Nogueira, Raul G., Qureshi, Muhammad M., Abdalkader, Mohamad, Martins, Sheila Ouriques, Yamagami, Hiroshi, Qiu, Zhongming, Mansour, Ossama Yassin, Sathya, Anvitha, Czlonkowska, Anna, Tsivgoulis, Georgios, Aguiar de Sousa, Diana, Demeestere, Jelle, Mikulik, Robert, Vanacker, Peter, Siegler, James E., Kõrv, Janika, Biller, Jose, Liang, Conrad W., Sangha, Navdeep S., Zha, Alicia M., Czap, Alexandra L., Holmstedt, Christine Anne, Turan, Tanya N., Ntaios, George, Malhotra, Konark, Tayal, Ashis, Loochtan, Aaron, Ranta, Annamarei, Mistry, Eva A., Alexandrov, Anne W., Huang, David Y., Yaghi, Shadi, Raz, Eytan, Sheth, Sunil A., Mohammaden, Mahmoud H., Frankel, Michael, Bila Lamou, Eric Guemekane, Aref, Hany M., Elbassiouny, Ahmed, Hassan, Farouk, Menecie, Tarek, Mustafa, Wessam, Shokri, Hossam M., Roushdy, Tamer, Sarfo, Fred S., Alabi, Tolulope Oyetunde, Arabambi, Babawale, Nwazor, Ernest O., Sunmonu, Taofiki Ajao, Wahab, Kolawole, Yaria, Joseph, Mohammed, Haytham Hussein, Adebayo, Philip B., Riahi, Anis D., Sassi, Samia Ben, Gwaunza, Lenon, Ngwende, Gift Wilson, Sahakyan, David, Rahman, Aminur, Ai, Zhibing, Bai, Fanghui, Duan, Zhenhui, Hao, Yonggang, Huang, Wenguo, Li, Guangwen, Li, Wei, Liu, Ganzhe, Luo, Jun, Shang, Xianjin, Sui, Yi, Tian, Ling, Wen, Hongbin, Wu, Bo, Yan, Yuying, Yuan, Zhengzhou, Zhang, Hao, Zhang, Jun, Zhao, Wenlong, Zi, Wenjie, Leung, Thomas W., Chugh, Chandril, Huded, Vikram, Menon, Bindu, Pandian, Jeyaraj Durai, Sylaja, PN, Usman, Fritz Sumantri, Farhoudi, Mehdi, Hokmabadi, Elyar Sadeghi, Horev, Anat, Reznik, Anna, Sivan Hoffmann, Rotem, Ohara, Nobuyuki, Sakai, Nobuyuki, Watanabe, Daisuke, Yamamoto, Ryoo, Doijiri, Ryosuke, Tokuda, Naoki, Yamada, Takehiro, Terasaki, Tadashi, Yazawa, Yukako, Uwatoko, Takeshi, Dembo, Tomohisa, Shimizu, Hisao, Sugiura, Yuri, Miyashita, Fumio, Fukuda, Hiroki, Miyake, Kosuke, Shimbo, Junsuke, Sugimura, Yusuke, Yagita, Yoshiki, Takenobu, Yohei, Matsumaru, Yuji, Yamada, Satoshi, Kono, Ryuhei, Kanamaru, Takuya, Yamazaki, Hidekazu, Sakaguchi, Manabu, Todo, Kenichi, Yamamoto, Nobuaki, Sonoda, Kazutaka, Yoshida, Tomoko, Hashimoto, Hiroyuki, Nakahara, Ichiro, Kondybayeva, Aida, Faizullina, Kamila, Kamenova, Saltanat, Zhanuzakov, Murat, Baek, Jang-Hyun, Hwang, Yangha, Lee, Jin Soo, Lee, Si Baek, Moon, Jusun, Park, Hyungjong, Seo, Jung Hwa, Seo, Kwon-Duk, Sohn, Sung Il, Young, Chang Jun, Ahdab, Rechdi, Wan Zaidi, Wan Asyraf, Aziz, Zariah Abdul, Basri, Hamidon bin, Chung, Law Wan, Ibrahim, Aznita Binti, Ibrahim, Khairul Azmi, Looi, Irene, Tan, Wee Yong, Yahya, Nafisah Wan, Groppa, Stanislav, Leahu, Pavel, Al Hashmi, Amal M., Imam, Yahia Zakaria, Akhtar, Naveed, Pineda-Franks, Maria Carissa, Co, Christian Oliver, Kandyba, Dmitriy, Alhazzani, Adel, Al-Jehani, Hosam, Tham, Carol Huilian, Mamauag, Marlie Jane, Venketasubramanian, Narayanaswamy, Chen, Chih-Hao, Tang, Sung-Chun, Churojana, Anchalee, Akil, Esref, aykaç, özlem, Ozdemir, Atilla Ozcan, Giray, Semih, Hussain, Syed Irteza, John, Seby, Le Vu, Huynh, Tran, Anh Duc, Nguyen, Huy Hoang, Nhu Pham, Thong, Nguyen, Thang Huy, Nguyen, Trung Quoc, Gattringer, Thomas, Enzinger, Christian, Killer-Oberpfalzer, Monika, Bellante, Flavio, De Blauwe, Sofie, Vanhooren, Geert, De Raedt, Sylvie, Dusart, Anne, Lemmens, Robin, Ligot, Noemie, Pierre Rutgers, Matthieu, Yperzeele, Laetitia, Alexiev, Filip, Sakelarova, Teodora, Bedeković, Marina Roje, Budincevic, Hrvoje, Cindric, Igor, Hucika, Zlatko, Ozretic, David, Saric, Majda Seferovic, Pfeifer, František, Karpowic, Igor, Cernik, David, Sramek, Martin, Skoda, Miroslav, Hlavacova, Helena, Klecka, Lukas, Koutny, Martin, Vaclavik, Daniel, Skoda, Ondrej, Fiksa, Jan, Hanelova, Katerina, Nevsimalova, Miroslava, Rezek, Robert, Prochazka, Petr, Krejstova, Gabriela, Neumann, Jiri, Vachova, Marta, Brzezanski, Henryk, Hlinovsky, David, Tenora, Dusan, Jura, Rene, Jurák, Lubomír, Novak, Jan, Novak, Ales, Topinka, Zdenek, Fibrich, Petr, Sobolova, Helena, Volny, Ondrej, Krarup Christensen, Hanne, Drenck, Nicolas, Klingenberg Iversen, Helle, Simonsen, Claus Z., Truelsen, Thomas Clement, Wienecke, Troels, Vibo, Riina, Gross-Paju, Katrin, Toomsoo, Toomas, Antsov, Katrin, Caparros, Francois, Cordonnier, Charlotte, Dan, Maria, Faucheux, Jean-Marc, Mechtouff, Laura, Eker, Omer, Lesaine, Emilie, Ondze, Basile, Peres, Roxane, Pico, Fernando, Piotin, Michel, Pop, Raoul, Rouanet, Francois, Gubeladze, Tatuli, Khinikadze, Mirza, Lobjanidze, Nino, Tsiskaridze, Alexander, Nagel, Simon, Ringleb, Peter Arthur, Rosenkranz, Michael, Schmidt, Holger, Sedghi, Annahita, Siepmann, Timo, Szabo, Kristina, Thomalla, Götz, Palaiodimou, Lina, Sagris, Dimitrios, Kargiotis, Odysseas, Klivenyi, Peter, Szapary, Laszlo, Tarkanyi, Gabor, Adami, Alessandro, Bandini, Fabio, Calabresi, Paolo, Frisullo, Giovanni, Renieri, Leonardo, Sangalli, Davide, Pirson, Anne, Uyttenboogaart, Maarten, van den Wijngaard, Ido, Kristoffersen, Espen Saxhaug, Brola, Waldemar, Fudala, Małgorzata, Horoch-Lyszczarek, Ewa, Karlinski, Michal, Kazmierski, Radoslaw, Kram, Pawel, Rogoziewicz, Marcin, Kaczorowski, Rafal, Luchowski, Piotr, Sienkiewicz-Jarosz, Halina, Sobolewski, Piotr, Fryze, Waldemar, Wisniewska, Anna, Wiszniewska, Malgorzata, Ferreira, Patricia, Ferreira, Paulo, Fonseca, Luisa, Marto, João Pedro, Pinho e Melo, Teresa, Nunes, Ana Paiva, Rodrigues, Miguel, Tedim Cruz, Vítor, Falup-Pecurariu, Cristian, Krastev, Georgi, Mako, Miroslav, de Leciñana, María Alonso, Arenillas, Juan F., Ayo-Martin, Oscar, Cruz Culebras, Antonio, Tejedor, Exuperio Diez, Montaner, Joan, Pérez-Sánchez, Soledad, Tola Arribas, Miguel Angel, Rodriguez Vasquez, Alejandro, Mayza, Michael, Bernava, Gianmarco, Brehm, Alex, Machi, Paolo, Fischer, Urs, Gralla, Jan, Michel, Patrik L., Psychogios, Marios-Nikos, Strambo, Davide, Banerjee, Soma, Krishnan, Kailash, Kwan, Joseph, Butt, Asif, Catanese, Luciana, Demchuk, Andrew M., Field, Thalia, Haynes, Jennifer, Hill, Michael D., Khosravani, Houman, Mackey, Ariane, Pikula, Aleksandra, Saposnik, Gustavo, Scott, Courtney Anne, Shoamanesh, Ashkan, Shuaib, Ashfaq, Yip, Samuel, Barboza, Miguel A., Barrientos, Jose Domingo, Portillo Rivera, Ligia Ibeth, Gongora-Rivera, Fernando, Novarro-Escudero, Nelson, Blanco, Anmylene, Abraham, Michael, Alsbrook, Diana, Altschul, Dorothea, Alvarado-Ortiz, Anthony J., Bach, Ivo, Badruddin, Aamir, Barazangi, Nobl, Brereton, Charmaine, Castonguay, Alicia, Chaturvedi, Seemant, Chaudry, Saqib A., Choe, Hana, Choi, Jae H., Dharmadhikari, Sushrut, Desai, Kinjal, Devlin, Thomas G., Doss, Vinodh T., Edgell, Randall, Etherton, Mark, Farooqui, Mudassir, Frei, Don, Gandhi, Dheeraj, Grigoryan, Mikayel, Gupta, Rishi, Hassan, Ameer E., Helenius, Johanna, Kaliaev, Artem, Kaushal, Ritesh, Khandelwal, Priyank, Khawaja, Ayaz M., Khoury, Naim N., Kim, Benny S., Kleindorfer, Dawn O., Koyfman, Feliks, Lee, Vivien H., Leung, Lester Y., Linares, Guillermo, Linfante, Italo, Lutsep, Helmi L., Macdougall, Lisa, Male, Shailesh, Malik, Amer M., Masoud, Hesham, McDermott, Molly, Mehta, Brijesh P., Min, Jiangyong, Mittal, Manoj, Morris, Jane G., Multani, Sumeet S., Nahab, Fadi, Nalleballe, Krishna, Nguyen, Claude B., Novakovic-White, Roberta, Ortega-Gutierrez, Santiago, Rahangdale, Rahul H., Ramakrishnan, Pankajavalli, Romero, Jose Rafael, Rost, Natalia, Rothstein, Aaron, Ruland, Sean, Shah, Ruchir, Sharma, Malveeka, Silver, Brian, Simmons, Marc, Singh, Abhishek, Starosciak, Amy K., Strasser, Sheryl L., Szeder, Viktor, Teleb, Mohamed, Tsai, Jenny P., Voetsch, Barbara, Balaguera, Oscar, Pujol Lereis, Virginia A., Luraschi, Adriana, Almeida, Marcele Schettini, Cardoso, Fabricio Buchdid, Conforto, Adriana, De Deus Silva, Leonardo, Varrone Giacomini, Luidia, Oliveira Lima, Fabricio, Longo, Alexandre L., Magalhães, Pedro S.C., Martins, Rodrigo Targa, Mont'alverne, Francisco, Mora Cuervo, Daissy Liliana, Costa Rebello, Leticia, Valler, Lenise, Zetola, Viviane Flumignan, Lavados, Pablo M., Navia, Victor, Olavarría, Verónica V., Almeida Toro, Juan Manuel, Amaya, Pablo Felipe Ricardo, Bayona, Hernan, Corredor, Angel, Rivera Ordonez, Carlos Eduardo, Mantilla Barbosa, Diana Katherine, Lara, Osvaldo, Patiño, Mauricio R., Diaz Escobar, Luis Fernando, Dejesus Melgarejo Farina, Donoband Edson, Cardozo Villamayor, Analia, Zelaya Zarza, Adolfo Javier, Barrientos Iman, Danny Moises, Rodriguez Kadota, Liliana, Campbell, Bruce, Hankey, Graeme J., Hair, Casey, Kleinig, Timothy, Ma, Alice, Tomazini Martins, Rodrigo, Sahathevan, Ramesh, Thijs, Vincent, Salazar, Daniel, Yuan-Hao Wu, Teddy, Haussen, Diogo C., Liebeskind, David, Yavagal, Dileep R., Jovin, Tudor G., Zaidat, Osama O., and Nguyen, Thanh N.

Published
2021
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25. Long-term retreatment rates of cerebral aneurysms in a population-level cohort.

Author

Daileda, Taylor, Vahidy, Farhaan S., Peng Roc Chen, Kamel, Hooman, Liang, Conrad W., Savitz, Sean I., and Sheth, Sunil A.

Subjects
INTRACRANIAL aneurysm surgery, AGE distribution, ENDOVASCULAR surgery, CONFIDENCE intervals, HISPANIC Americans, HOSPITAL care, INTRACRANIAL aneurysms, LONGITUDINAL method, NEUROSURGERY, RACE, REOPERATION, SURGICAL instruments, ODDS ratio
Abstract

BACKGROUND: The likelihood of retreatment in patients undergoing procedures for cerebral aneurysms (CAs) has an important role in deciding the optimal treatment type. Existing determinations of retreatment rates, particularly for unruptured CAs, may not represent current clinical practice. OBJECTIVE: To use population-level data to examine a large cohort of patients with treated CAs over a 10-year period to estimate retreatment rates for both ruptured and unruptured CAs and explore the effect of changing treatment practices. METHODS: We used administrative data from all non-federal hospitalizations in California (2005-2011) and Florida (2005-2014) and identified patients with treated CAs. Surgical clipping (SC) and endovascular treatments (ETs) were defined by corresponding procedure codes and an accompanying code for ruptured or unruptured CA. Retreatment was defined as subsequent SC or ET. RESULTS: Among 19-482 patients with treated CAs, ET was performed in 12-007 (62%) patients and SC in 7475 (38%). 9279 (48%) patients underwent treatment for unruptured CAs and 10203 (52%) for ruptured. Retreatment after 90 days occurred in 1624 (8.3%) patients (11.2% vs 3.7%, ET vs SC). Retreatment rates for SC were greater in unruptured than in ruptured aneurysms (4.6% vs 3.1%), but the opposite was true for ET (10.6% vs 11.8%). 85% of retreatments were within 2 years of the index treatment. Retreatment was associated with age (OR=0.99, 95% CI 0.98 to 0.99), female sex (OR=1.5, 95% CI 1.3 to 1.7), Hispanic versus white race (OR=0.86, 95% CI 0.75 to 0.98), and ET versus SC (OR=3.25, 95% CI 2.85 to 3.71). The adjusted 2-year retreatment rate decreased from 2005 to 2012 for patients with unruptured CAs treated with ET (11% to 8%). CONCLUSIONS: Retreatment rates for CAs treated with ET were greater than those for SC. However, for patients with unruptured CAs treated with ET, we identify a continuous decline in retreatment rate over the past decade. [ABSTRACT FROM AUTHOR]

Published
2019
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29. Feasibility and utility of an integrated medical imaging and informatics smartphone system for management of acute stroke.

Author

Shkirkova, Kristina, Akam, Eftitan Y., Huang, Josephine, Sheth, Sunil A., Nour, May, Liang, Conrad W., McManus, Michael, Trinh, Van, Duckwiler, Gary, Tarpley, Jason, Vinuela, Fernando, and Saver, Jeffrey L.

Subjects
STROKE, DIAGNOSTIC imaging, MEDICAL informatics, CEREBROVASCULAR disease, MEDICAL imaging systems
Abstract

Background: Rapid dissemination and coordination of clinical and imaging data among multidisciplinary team members are essential for optimal acute stroke care. Aim: To characterize the feasibility and utility of the Synapse Emergency Room mobile (Synapse ERm) informatics system. Methods: We implemented the Synapse ERm system for integration of clinical data, computerized tomography, magnetic resonance, and catheter angiographic imaging, and real-time stroke team communications, in consecutive acute neurovascular patients at a Comprehensive Stroke Center. Results: From May 2014 to October 2014, the Synapse ERm application was used by 33 stroke team members in 84 Code Stroke alerts. Patient age was 69.6 (±17.1), with 41.5% female. Final diagnosis was: ischemic stroke 64.6%, transient ischemic attack 7.3%, intracerebral hemorrhage 6.1%, and cerebrovascular-mimic 22.0%. Each patient Synapse ERm record was viewed by a median of 10 (interquartile range 6-18) times by a median of 3 (interquartile range 2-4) team members. The most used feature was computerized tomography, magnetic resonance, and catheter angiography image display. In-app tweet team, communications were sent by median 1 (interquartile range 0-1, range 0-13) users per case and viewed by median 1 (interquartile range 0-3, range 0-44) team members. Use of the system was associated with rapid treatment times, faster than national guidelines, including median door-to-needle 51.0 min (interquartile range 40.5-69.5) and median door-to-groin 94.5 min (interquartile range 85.5-121.3). In user surveys, the mobile information platform was judged easy to employ in 91% (95% confidence interval 65%-99%) of uses and of added help in stroke management in 50% (95% confidence interval 22%-78%). Conclusion: The Synapse ERm mobile platform for stroke team distribution and integration of clinical and imaging data was feasible to implement, showed high ease of use, and moderate perceived added utility in therapeutic management. [ABSTRACT FROM AUTHOR]

Published
2017
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31. Abstract T P33: Collateral Grade on MRI - Validation With Conventional Angiography is Key

Author

Ng, Kwan L, primary, Saver, Jeffrey L, additional, Alger, Jeffry R, additional, Scalzo, Fabien, additional, Salamon, Noriko, additional, Yoo, Bryan, additional, Starkman, Sidney, additional, Ali, Latisha K, additional, Rao, Neal, additional, Hinman, Jason, additional, Calderon-Arnulphi, Mateo, additional, Modir, Royya, additional, Tansy, Aaron, additional, Liang, Conrad W, additional, Sheth, Sunil A, additional, Noorian, Alireza R, additional, Vespa, Paul, additional, Blanco, Manuel B, additional, Jahan, Reza, additional, Vinuela, Fernando, additional, Duckwiler, Gary R, additional, Tateshima, Satoshi, additional, Gonzalez, Nestor, additional, and Liebeskind, David S, additional

Published
2014
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35. To tube or not to tube?The role of intubation during stroke thrombectomy.

Author

Takahashi, Courtney, Liang, Conrad W., Liebeskind, David S., and Hinman, Jason D.

Subjects
STROKE treatment, INTUBATION, BLOOD pressure, HYPOCAPNIA, VASOCONSTRICTION
Abstract

In the 10 years since the FDA first cleared the use of endovascular devices for the treatment of acute stroke, definitive evidence that such therapy improves outcomes remains lacking. The decision to intubate patients undergoing stroke thrombectomy impacts multiple variables that may influence outcomes after stroke.Three main areas where intubation may deleteriously affect acute stroke management include the introduction of delays in revascularization, fluctuations in peri-procedural blood pressure, and hypocapnia, resulting in cerebral vasoconstriction. In this mini-review, we discuss the evidence supporting these limitations of intubation during stroke thrombectomy and encourage neurohospitalists, neurocritical care specialists, and neurointerventionalists to carefully consider the decision to intubate during thrombectomy and provide strategies to avoid potential complications associated with its use in acute stroke. [ABSTRACT FROM AUTHOR]

Published
2014
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37. Abstract T P33.

Author

Ng, Kwan L, Saver, Jeffrey L, Alger, Jeffry R, Scalzo, Fabien, Salamon, Noriko, Yoo, Bryan, Starkman, Sidney, Ali, Latisha K, Rao, Neal, Hinman, Jason, Calderon-Arnulphi, Mateo, Modir, Royya, Tansy, Aaron, Liang, Conrad W, Sheth, Sunil A, Noorian, Alireza R, Vespa, Paul, Blanco, Manuel B, Jahan, Reza, and Vinuela, Fernando

Published
2014

38. Abstract W P21.

Author

Liang, Conrad W, Saver, Jeffrey L, Jahan, Reza, Starkman, Sidney, Ali, Latisha K, Rao, Neal, Hinman, Jason D, Vespa, Paul M, Blanco, Manuel B, Modir, Royya F, Tansy, Aaron P, Calderon-Arnulphi, Mateo, Ng, Kwan L, Noorian, Ali R, Sheth, Sunil A, Viñuela, Fernando, Duckwiler, Gary R, Tateshima, Satoshi, Gonzalez, Nestor R, and Liebeskind, David S

Published
2014

39. Abstract TP424.

Author

Liang, Conrad W, Su, Kimmy, Liu, Jesse J, Dogan, Aclan, and Hinson, Holly E

Published
2013

40. First Pass Recanalization Rates of Solitaire vs Trevo vs Primary Aspiration: The Kaiser Southern California Experience.

Author

Liang CW, Toor HJ, Duran Martinez E, Sheth SA, Chao K, Feng L, Noufal M, Nguyen BV, Mowji PJ, and Sangha N

Subjects
Humans, Retrospective Studies, Thrombectomy, Treatment Outcome, Brain Ischemia, Stroke surgery
Abstract

Context: New stroke thrombectomy devices have significantly improved recanalization rates in patients with large vessel occlusion. The first pass effect, or complete or near complete recanalization after a single pass of a device, is associated with better outcome. However, it remains unclear whether one technique is superior to the others at first pass recanalization., Objective: The successful recanalization rates of three common techniques: 1) Stent-retriever with the Solitaire or 2) Trevo device, or 3) primary aspiration (PA) with a distal aspiration catheter, were compared across three Kaiser Permanente Southern California Medical Centers over a 5-year period., Design: Retrospective review of cases between October 2013 and May 2018., Main Outcome Measure: Successful recanalization after a single pass of a device., Results: Forty-five percent of Solitaire thrombectomies resulted in first pass success, compared with 31% of Trevo and 39% of PA, not statistically significant (p = 0.26). Adjusted for age, gender, and National Institutes of Health Stroke Scale score, the odds of successful recanalization were 1.90 ± 0.72 (CI 0.90-3.99, p = 0.09) for Solitaire compared with Trevo, and 1.41 ± 0.50 (CI 0.70-2.84, p = 0.33) for aspiration compared with Trevo., Conclusion: In this multi-center cohort, there was no statistical difference in successful first pass recanalization between Solitaire, Trevo, and PA. However, there was a trend towards improved efficacy with the Solitaire device compared to Trevo (OR 1.90, p = 0.09). Additional data are needed to determine the conditions under which design differences may favor one technique over another., (Copyright © 2020 The Permanente Press. All rights reserved.)

Published
2020
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41. Sudden neurologic deficit.

Author

Kellogg M, Liang CW, and Liebeskind DS

Subjects
Humans, Nervous System Diseases diagnostic imaging, Neuroimaging classification, Neuroimaging methods
Abstract

Clinicians treating sudden neurologic deficit are being faced with an increasing number of available imaging modalities. In this chapter we discuss a general approach to acute neuroimaging and weigh the considerations that determine which modality or modalities should be utilized., (© 2016 Elsevier B.V. All rights reserved.)

Published
2016
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