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Global, Regional, and National Burden of Nontraumatic Subarachnoid Hemorrhage
Collaborators, GBD 2021 Global Subarachnoid Hemorrhage Risk Factors, Rautalin, Ilari, Stark, Benjamin, Johnson, Catherine O., Kaprio, Jaakko , Korja, Miikka, Krishnamurthi, Rita , Nair, Balakrishnan , Vergouwen, Mervyn D. 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A., Yamagishi, Kazumasa , Yaribeygi, Habib , Yaya, Sanni , Ye, Pengpeng, Yonemoto, Naohiro , Yu, Chuanhua , Zastrozhin, Michael, Zhang, Chen , Zhang, Zhiqiang, Zielińska, Magdalena , Zyoud, Samer H. , Roth, Gregory A. , Feigin, Valery L. , Kulimbet, Mukhtar , Rahim, Fakher
JAMA Neurology | May 23, 2025 | Volume: 82 | Issue: 8 | Pages: 765
Importance Nontraumatic subarachnoid hemorrhage (SAH) represents the third most common stroke type with unique etiologies, risk factors, diagnostics, and treatments. Nevertheless, epidemiological studies often cluster SAH with other stroke types leaving its distinct burden estimates obscure. Objective To estimate the worldwide burden of SAH. Design, Setting, and Participants Based on the repeated cross-sectional Global Burden of Disease (GBD) 2021 study, the global burden of SAH in 1990 to 2021 was estimated. Moreover, the SAH burden was compared with other diseases, and its associations with 14 individual risk factors were investigated with available data in the GBD 2021 study. The GBD study included the burden estimates of nontraumatic SAH among all ages in 204 countries and territories between 1990 and 2021. Exposures SAH and 14 modifiable risk factors. Main Outcomes and Measures Absolute numbers and age-standardized rates with 95% uncertainty intervals (UIs) of SAH incidence, prevalence, mortality, and disability-adjusted life-years (DALYs) as well as risk factor–specific population attributable fractions (PAFs). Results In 2021, the global age-standardized SAH incidence was 8.3 (95% UI, 7.3-9.5), prevalence was 92.2 (95% UI, 84.1-100.6), mortality was 4.2 (95% UI, 3.7-4.8), and DALY rate was 125.2 (95% UI, 110.5-142.6) per 100 000 people. The highest burden estimates were found in Latin America, the Caribbean, Oceania, and high-income Asia Pacific. Although the absolute number of SAH cases increased, especially in regions with a low sociodemographic index, all age-standardized burden rates decreased between 1990 and 2021: the incidence by 28.8% (95% UI, 25.7%-31.6%), prevalence by 16.1% (95% UI, 14.8%-17.7%), mortality by 56.1% (95% UI, 40.7%-64.3%), and DALY rate by 54.6% (95% UI, 42.8%-61.9%). Of 300 diseases, SAH ranked as the 36th most common cause of death and 59th most common cause of DALY in the world. Of all worldwide SAH-related DALYs, 71.6% (95% UI, 63.8%-78.6%) were associated with the 14 modeled risk factors of which high systolic blood pressure (population attributable fraction [PAF] = 51.6%; 95% UI, 38.0%-62.6%) and smoking (PAF = 14.4%; 95% UI, 12.4%-16.5%) had the highest attribution. Conclusions and Relevance Although the global age-standardized burden rates of SAH more than halved over the last 3 decades, SAH remained one of the most common cardiovascular and neurological causes of death and disabilities in the world, with increasing absolute case numbers. These findings suggest evidence for the potential health benefits of proactive public health planning and resource allocation toward the prevention of SAH.
Mechanical Thrombectomy Global Access For Stroke (MT-GLASS): A Mission Thrombectomy (MT-2020 Plus) Study
Asif, Kaiz , Otite, Fadar Oliver , Desai, Shashvat M. , Herial, Nabeel , Inoa, Violiza , Al‐Mufti, Fawaz , Dmytriw, Adam A. , Castonguay, Alicia C. , Khandelwal, Priyank , Potter‐Vig, Jennifer , Szeder, Viktor , Kulman, Tanzila, Masoud, Hesham , Tóth, Gábor , Limaye, Kaustubh , Aroor, Sushanth , Brinjikji, Waleed , Rai, Ansaar , Gebreyohanns, Mehari , Leung, Thomas , Mansour, Malek , Huded, Vikram , Zaidat, Osama O. , Sylaja, PN , Yavagal, Dileep R. , Cirio, Juan , Lylyk, Pedro , Ferrario, Ángel, Plaghos, Luis Lemme, Ibrahim, Wael Hamed, Alnidawi, Firas , Islam, Sirajee Shafiqul, Shahidullah, Mohammad, Saavedra, Víctor Villarroel, Alverne, Francisco Josà Mont’, Magalhães, Pedro , Sirakov, Stanimir , Kalpachki, Rosen, Alioski, Nurfet, Lamou, Eric Gueumekane Bila , Rowe, Daidre, Gayle, Francene , Souza, Romnesh de, Ramos, Cristina , GarcÃa, Amaury, Ali, Amza , Sandy, Sherry , Guzman, Tony Fabian Alvarez, Villarraga, Alejandro, Estrada, Carolina, Pabón, B , Adebayo, Philip , ABDO, GERMAN, S, Nelson Maldonado, Khinikadze, Mirza, Tsiskaridze, Alexander , Syrmos, Νikolaos , Mitsias, Panayiotis , Das, Biplab , Gupta, Vipul , Karapurkar, Anil, Stivastava, M.V.Padma, Alurkar, Anand, Sharma, Arvind , Lahoti, Satish, Kuruttukulam, Gigy , Sari, Ita Muharram , Khassaf, Mustafa Saleem, Nassir, Temeem Majid, Yamagami, Hiroshi , Dababneh, Haitham, Aladham, Farid A., Berdikhojayev, Mynzhylky , Medukhanova, Sabina , Kikano, Raghid, Alaraj, Ali , Ahdab, Rechdi , Zaidi, Wan Asyraf Wan , Kadir, Khairul Azmi Abd, Gongora, Fernando, Jambaldorj, Ariunaa , XXX, Ganbaatar, Shwe, Zarni Myint, Thit, Win Min , RAYO, ERWIN E., Makanjuola, Akintomiwa , Rashid, Umair, Mernes, Ricardo, Paniagua, Osvaldo, GALLO, MARLA, Moquillaza, Manuel, Collantes, Maria Epifania , Mariano, Manuel, Kobayashi, Adam , Rodríguez‐Mercado, Rafael, Guardia, Rodolfo Alcedo, Imam, Yahia , Ahmed, Ayman Z., Al-Jehani, Hosam , Lee, Wickly, Klepanec, Andrej , Brey, Naeem , Rossouw, Anastasia, Silva, Prasad De, Gunasekera, Harsha, Ranawaka, Udaya K. , Osman, Haytham , El-Sadig, Sarah , Suwanwela, Nijasri C., Akarathanawat, Wasan, Tantivatana, Jarturon , Hammami, Nadia, Giray, Semih , Lebedynets, Dmytro , Konotopchik, Stanislav, John, Seby , Hussain, Syed , Novakovic-White, Robin, Perue, Gillian L Gordon, Then, Ryna , Berrutti, Claudio, Crosa, Roberto , Nguyen, Huy Thang, Le, Huynh Vu, vu, Tran thanh, Asif, Kaiz S , Otite, Fadar O , Jadhav, Ashutosh P , Dmytriw, Adam A , Castonguay, Alicia , Khandelwal, Priyank , Szeder, Viktor , Urrutia, Victor C , Masoud, Hesham , Toth, Gabor , Limaye, Kaustubh , Brinjikji, Waleed , Rai, Ansaar , Pandian, Jeyaraj , Leung, Thomas , Mansour, Ossama , Demchuk, Andrew M , Martins, Sheila , Zaidat, Osama O , Huo, Xiaochuan , Campbell, Bruce , Miao, Zhongrong , Saver, Jeffrey , Ortega-Gutierrez, Santiago , Yavagal, Dileep R , Crosa, Roberto , Alaraj, Ali , Al-Mufti, Fawaz , Jadhav, Ashutosh P. , Urrutia, Victor , Pandian, Jeyaraj , Demchuk, Andrew M. , Saver, Jeffrey L. , Arroyo, José, Yan, Bernard , Chandra, Ronil Vikesh , Shahidullah, Mohammad, Alverne, F Mont, Silva, Gisele Sampaio , Shankar, Jai , Stotts, Grant , Ramos, Cristina, Lavados, Pablo M. , Rivera, Rodrigo , Krajina, Antonı́n , Tomek, Aleš , Hassan, Farouk , Khedr, Eman M. , Nadareishvili, Zurab , Roy, Jayanta , Gupta, Vivek , Khurana, Dheeraj , Kumar, Rahul Kewal , Sani, Achmad Firdaus , Sakai, Nobuyuki , Aladham, Farid, Kikano, Raghid , Araúz, Antonio , Góngora‐Rivera, Fernando , Shwe, Zarni Myint, Ranta, Annemarei , Wu, Teddy Y , Owolabi, Mayowa , Ahmad, Saima , Wasay, Mohammad , Alhazzani, Adel Ali , Zeleňák, Kamil , Krastev, Georgi , Frol, Senta , Hammami, Nadia, Sassi, Samia Ben , Özdemi̇r, Atilla Özcan , Конотопчик, С. В., Perue, Gillian Gordon
Circulation | March 8, 2023 | Volume: 147 | Issue: 16 | Pages: 1208-1220
10.1161/circulationaha.122.063366
Background: Despite the well-established potent benefit of mechanical thrombectomy (MT) for large vessel occlusion (LVO) stroke, access to MT has not been studied globally. We conducted a worldwide survey of countries on 6 continents to define MT access (MTA), the disparities in MTA, and its determinants on a global scale. Methods: Our survey was conducted in 75 countries through the Mission Thrombectomy 2020+ global network between November 22, 2020, and February 28, 2021. The primary end points were the current annual MTA, MT operator availability, and MT center availability. MTA was defined as the estimated proportion of patients with LVO receiving MT in a given region annually. The availability metrics were defined as ([current MT operators×50/current annual number of estimated thrombectomy-eligible LVOs]×100 = MT operator availability) and ([current MT centers×150/current annual number of estimated thrombectomy-eligible LVOs]×100= MT center availability). The metrics used optimal MT volume per operator as 50 and an optimal MT volume per center as 150. Multivariable-adjusted generalized linear models were used to evaluate factors associated with MTA. Results: We received 887 responses from 67 countries. The median global MTA was 2.79% (interquartile range, 0.70–11.74). MTA was <1.0% for 18 (27%) countries and 0 for 7 (10%) countries. There was a 460-fold disparity between the highest and lowest nonzero MTA regions and low-income countries had 88% lower MTA compared with high-income countries. The global MT operator availability was 16.5% of optimal and the MT center availability was 20.8% of optimal. On multivariable regression, country income level (low or lower–middle versus high: odds ratio, 0.08 [95% CI, 0.04–0.12]), MT operator availability (odds ratio, 3.35 [95% CI, 2.07–5.42]), MT center availability (odds ratio, 2.86 [95% CI, 1.84–4.48]), and presence of prehospital acute stroke bypass protocol (odds ratio, 4.00 [95% CI, 1.70–9.42]) were significantly associated with increased odds of MTA. Conclusions: Access to MT on a global level is extremely low, with enormous disparities between countries by income level. The significant determinants of MT access are the country’s per capita gross national income, prehospital LVO triage policy, and MT operator and center availability.
Establishment of an internationally agreed minimum data set for acute telestroke
Cadilhac, Dominique A. , Bagot, Kathleen L. , Hubert, G. , Watkins, Caroline , Lightbody, Catherine Elizabeth , Kim, Joosup , Vu, Michelle , Pompeani, Nancy , Switzer, Jeffrey A. , Caudill, Juanita, Estrada, Juan , Viswanathan, Anand , Hubert, Nikolai , Ohannessian, Robin , Hargroves, David , Roberts, Nicholas , Ingall, Timothy J., Hess, David C. , Ranta, Annemarei , Padma, Vasantha, Bladin, Christopher F., Pompeani, Nancy , Ohannessian, Robin , Ingall, Timothy, Ranta, Annemarei , Demaerschalk, Bart M. , Schwamm, Lee H. , Roberts, Nicholas
Journal of Telemedicine and Telecare | January 14, 2020 | Volume: 27 | Issue: 9 | Pages: 582-589
Introduction Globally, the use of telestroke programmes for acute care is expanding. Currently, a standardised set of variables for enabling reliable international comparisons of telestroke programmes does not exist. The aim of the study was to establish a consensus-based, minimum dataset for acute telestroke to enable the reliable comparison of programmes, clinical management and patient outcomes. Methods An initial scoping review of variables was conducted, supplemented by reaching out to colleagues leading some of these programmes in different countries. An international expert panel of clinicians, researchers and managers ( n = 20) from the Australasia Pacific region, USA, UK and Europe was convened. A modified-Delphi technique was used to achieve consensus via online questionnaires, teleconferences and email. Results Overall, 533 variables were initially identified and harmonised into 159 variables for the expert panel to review. The final dataset included 110 variables covering three themes (service configuration, consultations, patient information) and 12 categories: (1) details about telestroke network/programme ( n = 12), (2) details about initiating hospital ( n = 10), (3) telestroke consultation ( n = 17), (4) patient characteristics ( n = 7), (5) presentation to hospital ( n = 5), (6) general clinical care within first 24 hours ( n = 10), (7) thrombolysis treatment ( n = 10), (8) endovascular treatment ( n = 13), (9) neurosurgery treatment ( n = 8), (10) processes of care beyond 24 hours ( n = 7), (11) discharge information ( n = 5), (12) post-discharge and follow-up data ( n = 6). Discussion The acute telestroke minimum dataset provides a recommended set of variables to systematically evaluate acute telestroke programmes in different countries. Adoption is recommended for new and existing services.