Browsing by Author "Yamagami, Hiroshi"

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    Decline in subarachnoid haemorrhage volumes associated with the first wave of the COVID-19 pandemic
    (2021) Nguyen, Thanh N.; Haussen, Diogo C.; Qureshi, Muhammad M.; Yamagami, Hiroshi; Fujinaka, Toshiyuki; Mansour, Ossama Y.; Abdalkader, Mohamad; Frankel, Michael; Qiu, Zhongming; Taylor, Allan; Lylyk, Pedro; Eker, Omer F.; Mechtouff, Laura; Piotin, Michel; Oliveira Lima, Fabricio; Mont'Alverne, Francisco; Izzath, Wazim; Sakai, Nobuyuki; Mohammaden, Mahmoud; Al-Bayati, Alhamza R.; Renieri, Leonardo; Mangiafico, Salvatore; Ozretic, David; Chalumeau, Vanessa; Ahmad, Saima; Rashid, Umair; Irteza Hussain, Syed; John, Seby; Griffin, Emma; Thornton, John; Fiorot, Jose Antonio; Rivera, Rodrigo; Hammami, Nadia; Cervantes-Arslanian, Anna M.; Hammami, Nadia; Cervantes-Arslanian, Anna M.; Dasenbrock, Anna M.; Le Vu, Huynh; Nguyen, Viet Quy; Hetts, Steven; Bourcier, Romain; Guile, Romain; Walker, Melanie; Sharma, Malveeka; Frei, Don; Jabbour, Pascal; Herial, Nabeel; Al-Mufti, Fawaz; Ozdemir, Atilla Ozcan; Aykac, Ozlem; Gandhi, Dheeraj; Chugh, Chandril; Matouk, Charles
    Background: During the COVID-19 pandemic, decreased volumes of stroke admissions and mechanical thrombectomy were reported. The study's objective was to examine whether subarachnoid haemorrhage (SAH) hospitalisations and ruptured aneurysm coiling interventions demonstrated similar declines. Methods: We conducted a cross-sectional, retrospective, observational study across 6 continents, 37 countries and 140 comprehensive stroke centres. Patients with the diagnosis of SAH, aneurysmal SAH, ruptured aneurysm coiling interventions and COVID-19 were identified by prospective aneurysm databases or by International Classification of Diseases, 10th Revision, codes. The 3-month cumulative volume, monthly volumes for SAH hospitalisations and ruptured aneurysm coiling procedures were compared for the period before (1 year and immediately before) and during the pandemic, defined as 1 March-31 May 2020. The prior 1-year control period (1 March-31 May 2019) was obtained to account for seasonal variation. Findings: There was a significant decline in SAH hospitalisations, with 2044 admissions in the 3 months immediately before and 1585 admissions during the pandemic, representing a relative decline of 22.5% (95% CI -24.3% to -20.7%, p<0.0001). Embolisation of ruptured aneurysms declined with 1170-1035 procedures, respectively, representing an 11.5% (95%CI -13.5% to -9.8%, p=0.002) relative drop. Subgroup analysis was noted for aneurysmal SAH hospitalisation decline from 834 to 626 hospitalisations, a 24.9% relative decline (95% CI -28.0% to -22.1%, p<0.0001). A relative increase in ruptured aneurysm coiling was noted in low coiling volume hospitals of 41.1% (95% CI 32.3% to 50.6%, p=0.008) despite a decrease in SAH admissions in this tertile. Interpretation: There was a relative decrease in the volume of SAH hospitalisations, aneurysmal SAH hospitalisations and ruptured aneurysm embolisations during the COVID-19 pandemic. These findings in SAH are consistent with a decrease in other emergencies, such as stroke and myocardial infarction.
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    Global Impact of COVID-19 on Stroke Care and IV Thrombolysis
    (2021) Nogueira, Raúl G.; Qureshi, Muhammad M.; Abdalkader, Mohamad; Martins, Sheila Ouriques; Yamagami, Hiroshi; Mansour, Ossama Yassin; Qiu, Zhongming; 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; Shokr, Hossam M.; Roushdy, Tamer; Sarfo, Fred S.; Alabi, Tolulope Oyetunde; Arabambi, Babawale; Nwazor, Ernest O.; Sunmonu, Taofiki Ajao; Wahab, Kolawole; Yaria, Joseph; Hussein Mohammed, Haytham; Adebayo, Philip B.; Riahi, Anis D.; Sassi, Samia Ben; Navia, Víctor; Olavarría, Verónica
    Objective To measure the global impact of COVID-19 pandemic on volumes of IV thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with 2 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 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% confidence interval [CI] −11.7 to −11.3, p < 0.0001) decline. There were 13,334 IVT therapies in the 4 months preceding compared to 11,570 procedures during the pandemic, representing a 13.2% (95% CI −13.8 to −12.7, p < 0.0001) drop. Interfacility IVT transfers decreased from 1,337 to 1,178, or an 11.9% decrease (95% CI −13.7 to −10.3, p = 0.001). Recovery of stroke hospitalization volume (9.5%, 95% CI 9.2–9.8, p < 0.0001) was noted over the 2 later (May, June) vs the 2 earlier (March, April) pandemic months. There was a 1.48% stroke rate across 119,967 COVID-19 hospitalizations. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection was noted in 3.3% (1,722/52,026) of all stroke admissions. Conclusions The COVID-19 pandemic was associated with a global decline in the volume of stroke hospitalizations, IVT, and interfacility IVT transfers. Primary stroke centers and centers with higher COVID-19 inpatient volumes experienced steeper declines. Recovery of stroke hospitalization was noted in the later pandemic months.

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