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LetterCorrespondence
Open Access

Changing time for acute stroke management: What comes after dawn?

Yassar Alamri
Neurosciences Journal April 2019, 24 (2) 142; DOI: https://doi.org/10.17712/nsj.2019.2.20180038
Yassar Alamri
Department of Medicine, Christchurch Public Hospital, Christchurch, New Zealand
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To the Editor

We have read with interest the recent findings by Zafar et al.1 The results of the DAWN2 and DEFUSE 33 trials revealed favourable outcomes in patients receiving thrombectomy for acute ischaemic strokes presenting beyond 6 hours and up to 24 hours. How this translates to the management of acute stroke in Kingdom of Saudi Arabia is yet to be elucidated. However, to continue advancing stroke management, efforts ought to focus on 3 key areas.

First, is extending the “thrombectomy-eligibility” to periods beyond 16-24 hours. The literature shows that patients presenting after 16 hours are aplenty-the median time-to-presentation in one study was 16 hours and 5 minutes.4 While such “late presenters” may arguably have less severe strokes, it is conceivable that a proportion of thrombectomy-eligible patients may “miss out” by the time they are transferred to a thrombectomy-capable hospital. This is especially pertinent with the expected logistical challenges in Kingdom of Saudi Arabia.

Second, is enrolling patients with larger ischaemic cores if the associated salvageable penumbra is “substantial. Compared with DAWNs ischaemic cores (≤50 mL),2 those of DEFUSE 33 were more voluminous (up to 70 mL) with no appreciable detriment to patient outcomes. However, there have to be precautions about the difficulties with which such volumes are measured accurately, reliably, and reproducibly.

Finally, the armamentarium with which ischaemic strokes are acutely treated warrants re-evaluation. This includes the safety of using Tenecteplase beyond 4.5 hours, as well as the use of “neuroprotectants” which may further enhance penumbral survival and/or extend thrombectomy-eligibility periods.5

Reply from the Author

We are thankful to Dr. Yassar Alamri for reading our article,1 and giving his valuable suggestions to improve care of patients with acute ischemic stroke.

In fact, year 2018 had many advanced researches in stroke including extending therapeutic window for recanalization therapy in acute ischemic stroke, as mentioned by Dr. Yassar and debating the use of antiplatelet medications for secondary prevention in POINT trial.6,7 Stimulation of sphenopalatine ganglion has also been discussed in the World stroke congress as a reperfusion approach to augment blood flow in collaterals around the infarcted area.6

There has been recent advancement in primary prevention as well like using population based strategies such as smoking bans, building healthy cities and individual based strategies such as polypill and Health (namely, the use of mobile phone to improve health care such as app of stroke riskometer).8

Despite being the largest country in Middle East, the Kingdom of Saudi Arabia is lacking standard stroke care in many settings. A study addressing the level of awareness in Saudi population observed an alarming deficit in it.9 The benefits from these advancement in stroke care and prevention strategies can only be availed if proper stroke care programs are launched at regional and national levels.

Azra Zafar,

Department of Neurology, College of Medicine Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia

  • Copyright: © Neurosciences

Neurosciences is an Open Access journal and articles published are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC). Readers may copy, distribute, and display the work for non-commercial purposes with the proper citation of the original work.

References

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    5. Al-Khamis FA,
    6. Albakr AI,
    7. et al.
    (2018) Stroke and seizure continue to be the major brunt of in patient neurology care. An observation from teaching hospital. Neurosciences (Riyadh) 23, 13–17.
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    1. Nogueira RG,
    2. Jadhav AP,
    3. Haussen DC,
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    6. Bhuva P,
    7. et al.
    (2018) Thrombectomy 6 to 24 Hours after Stroke with a Mismatch between Deficit and Infarct. N Engl J Med 378, 11–21.
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    1. Albers GW,
    2. Marks MP,
    3. Kemp S,
    4. Christensen S,
    5. Tsai JP,
    6. Ortega-Gutierrez S,
    7. et al.
    (Feb, 2018) Thrombectomy for Stroke at 6 to 16 Hours with Selection by Perfusion Imaging. N Engl J Med 378, 708–718.
    1. De Silva DA,
    2. Ong SH,
    3. Elumbra D,
    4. Wong MC,
    5. Chen CL,
    6. Chang HM
    (2007) Timing of hospital presentation after acute cerebral infarction and patients' acceptance of intravenous thrombolysis. Ann Acad Med Singapore 36, 244–246.
  4. ↵
    1. Campbell BCV,
    2. Mitchell PJ,
    3. Churilov L,
    4. Yassi N,
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    6. Dowling RJ,
    7. et al.
    (2018) Tenecteplase versus Alteplase before Thrombectomy for Ischemic Stroke. N Engl J Med 378, 1573–1582.
  5. ↵
    1. Wardlaw JM,
    2. Bath PM
    (2019) Stroke research in 2018: extended time windows, refined benefit, and lifestyle prevention targets. Lancet Neurol 18, 2–3.
  6. ↵
    1. Johnston SC,
    2. Easton JD,
    3. Farrant M,
    4. Barsan W,
    5. Conwit RA,
    6. Elm JJ,
    7. et al.
    (2018) Clopidogrel and Aspirin in Acute Ischemic Stroke and High-Risk TIA. N Engl J Med 379, 215–225.
  7. ↵
    1. Pandian JD,
    2. Gall SL,
    3. Kate MP,
    4. Silva GS,
    5. Akinyemi RO,
    6. Ovbiagele BI,
    7. et al.
    (2018) Prevention of stroke:a global perspective. Lancet 392, 1269–1278.
  8. ↵
    1. Alaqeel A,
    2. AlAmmari A,
    3. AlSyefi N,
    4. Al-Hussain F,
    5. Mohammad Y
    (2014) Stroke awareness in the Saudi community living in Riyadh:prompt public health measures must be implemented. J Stroke Cerebrovasc Dis 23, 500–504.
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Neurosciences Journal: 24 (2)
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Changing time for acute stroke management: What comes after dawn?
Yassar Alamri
Neurosciences Journal Apr 2019, 24 (2) 142; DOI: 10.17712/nsj.2019.2.20180038

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Changing time for acute stroke management: What comes after dawn?
Yassar Alamri
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© 2023 Neurosciences Journal Neurosciences is copyright under the Berne Convention and the International Copyright Convention. All rights reserved. Neurosciences is an Open Access journal and articles published are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC). Readers may copy, distribute, and display the work for non-commercial purposes with the proper citation of the original work. Electronic ISSN 1658-3183. Print ISSN 1319-6138.

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