1887
Volume 2026, Issue 1
  • ISSN: 1999-7086
  • EISSN: 1999-7094

Abstract

Stroke is a major cause of critical illness in resource-limited, conflict-affected regions, yet ICU-based data remain scarce. This study characterizes the epidemiology, temporal trends, and mortality predictors among patients with stroke admitted to the largest tertiary ICU in southern Yemen.

We conducted a retrospective cohort study of adult ICU admissions from October 2019 to September 2021. Stroke cases were identified using codes and classified by subtype (ischemic or hemorrhagic) via neuroimaging and the clinical records. Seasonal trend decomposition (STL) was used to analyze seasonal patterns, and multivariable logistic regression was performed to identify mortality predictors, adjusted for age, sex, and comorbidities.

Among 1244 ICU admissions, 456 (36.7%) were patients with stroke, with a mean monthly admission rate of 19.0 ± 4.2 cases. Ischemic strokes predominated (82.0%; = 374) over hemorrhagic strokes (18.0%; = 82), with the proportion of ischemic strokes increasing from 80.0% to 85.3% ( = 0.08). STL analysis revealed significant seasonal variation, including an October peak (amplitude ±3.8 cases; = 0.003) and an upward trend peaking in March 2021 (+4.2 cases/month; = 0.017). Stroke admissions accounted for 14.6% to 59.4% of monthly ICU occupancy. Overall mortality was 19.1%, higher in hemorrhagic strokes (23.2%) than in ischemic strokes (18.2%; = 0.03). Propensity-matched analysis confirmed increased 30-day mortality in hemorrhagic strokes (26.8% vs. 18.3%; standardized mean difference = 0.21). Multivariable analysis identified hemorrhagic subtype (adjusted OR, 1.82 [95% CI, 1.03–3.21]) and age (adjusted OR, 1.15 per 5-year increase [95% CI, 1.02–1.30]) as independent mortality predictors. Conversely, longer ICU stays were protective (adjusted OR, 0.95 per day [95% CI, 0.91–0.99]).

Stroke accounts for over one-third of ICU admissions in this setting, with hemorrhagic strokes conferring a significantly higher mortality risk. The observed seasonal peak and identified mortality predictors underscore the need for targeted surveillance and management protocols in resource-constrained ICUs.

Loading

Article metrics loading...

/content/journals/10.5339/jemtac.2026.4
2026-01-22
2026-01-28

Metrics

Loading full text...

Full text loading...

/deliver/fulltext/jemtac/2026/1/jemtac.2026.4.html?itemId=/content/journals/10.5339/jemtac.2026.4&mimeType=html&fmt=ahah

References

  1. Feigin VL, Brainin M, Norrving B, Martins SO, Pandian J, Lindsay P, et al. World Stroke Organization: Global Stroke Fact Sheet 2025. Int J Stroke. 2025; 20:(2):13–44. https://doi.org/10.1177/17474930241308142
    [Google Scholar]
  2. Liu T, Qin M, Xiong X, Lai X, Gao Y. Multi-omics approaches for deciphering the complexity of traditional Chinese medicine syndromes in stroke: a systematic review. Front Pharmacol. 2022 Sep; 13:980650. https://doi.org/10.3389/fphar.2022.980650
    [Google Scholar]
  3. GBD 2019 Stroke Collaborators. Global, regional, and national burden of stroke and its risk factors, 1990-2019: a systematic analysis for the Global Burden of Disease Study 2019. Lancet Neurol. 2021 Oct; 20:(10):795–820. https://doi.org/10.1016/s1474-4422(21)00252-0
    [Google Scholar]
  4. Alonso A, Ebert AD, Kern R, Rapp S, Hennerici MG, Fatar M. Outcome predictors of acute stroke patients in need of intensive care treatment. Cerebrovasc Dis. 2015; 40:(1–2):10–7. ttps://doi.org/10.1159/000430871
    [Google Scholar]
  5. Habibi-Koolaee M, Shahmoradi L, Niakan Kalhori SR, Ghannadan H, Younesi E. Prevalence of stroke risk factors and their distribution based on stroke subtypes in Gorgan: a retrospective hospital-based study-2015-2016. Neurol Res Int. 2018 Jul; 2018:2709654. https://doi.org/10.1155/2018/2709654
    [Google Scholar]
  6. Shahbandi A, Shobeiri P, Azadnajafabad S, Saeedi Moghaddam S, Sharifnejad Tehrani Y, Ebrahimi N, et al. Burden of stroke in North Africa and Middle East, 1990 to 2019: a systematic analysis for the global burden of disease study 2019. BMC Neurol. 2022 Jul; 22:(1):279. https://doi.org/10.1186/s12883-022-02793-0
    [Google Scholar]
  7. Rukn SA, Mazya MV, Hentati F, Sassi SB, Nabli F, Said Z, et al. Stroke in the Middle-East and North Africa: a 2-year prospective observational study of stroke characteristics in the region-results from the Safe Implementation of Treatments in Stroke (SITS)-Middle-East and North African (MENA). Int J Stroke. 2019 Oct; 14:(7):715–22. https://doi.org/10.1177/1747493019830331
    [Google Scholar]
  8. Tran J, Mirzaei M, Anderson L, Leeder SR. The epidemiology of stroke in the Middle East and North Africa. J Neurol Sci. 2010 Aug; 295:(1-2):38–40. https://doi.org/10.1016/j.jns.2010.05.016
    [Google Scholar]
  9. Béjot Y, Delpont B, Giroud M. Rising stroke incidence in young adults: more epidemiological evidence, more questions to be answered. J Am Heart Assoc. 2016 May; 5:(5):e003661. https://doi.org/10.1161/jaha.116.003661
    [Google Scholar]
  10. Yu Q, Tian Y, Jiang N, Zhao F, Wang S, Sun M, et al. Global, regional, and national burden and trends of stroke among youths and young adults aged 15-39 years from 1990 to 2021: findings from the Global Burden of Disease study 2021. Front Neurol. 2025 Mar; 16:1535278. https://doi.org/10.3389/fneur.2025.1535278
    [Google Scholar]
  11. Dureab F, Hussain T, Sheikh R, Al-Dheeb N, Al-Awlaqi S, Jahn A. Forms of health system fragmentation during conflict: the case of Yemen. Front Public Health. 2021 Jul; 9:659980. https://doi.org/10.3389/fpubh.2021.659980
    [Google Scholar]
  12. Qirbi N, Ismail SA. Health system functionality in a low-income country in the midst of conflict: the case of Yemen. Health Policy Plan. 2017 Jul; 32:(6):911–22. https://doi.org/10.1093/heapol/czx031
    [Google Scholar]
  13. Alassar MM, Alqodimi AA, Almuasawa YA, Al-Ankat KA, Habal R, Al-Muntaser AA, et al. Cerebrovascular accidents in Sana’a City, Yemen: clinico-epidemiologic and neuroimaging findings. UST J Med Sci. 2025; 3:4. https://doi.org/10.59222/ustjms.3.4
    [Google Scholar]
  14. Basamed JM. Risk factors and outcomes of stroke in a tertiary hospital in Hadhramout Governorate, Yemen. Yemen J Med. 2022 Aug; 1:(2):69–73. https://doi.org/10.32677/yjm.v1i2.3552
    [Google Scholar]
  15. Hezam H, Khan F. Clinical presentation, risk factors, and outcomes of stroke in Shabwah Governorate, Yemen. Yemen J Med. 2023 Dec; 2:(3):151–6. https://doi.org/10.32677/yjm.v2i3.4361
    [Google Scholar]
  16. Al-Hoodar RK, Lazarus ER, Al Omari O, Al Zaabi O. Incidence, associated factors, and outcome of delirium among patients admitted to ICUs in Oman. Crit Care Res Pract. 2022 Oct; 2022:(1):4692483. https://doi.org/10.1155/2022/4692483
    [Google Scholar]
  17. Saini V, Guada L, Yavagal DR. Global epidemiology of stroke and access to acute ischemic stroke interventions. Neurology. 2021 Nov; 97:(20 Suppl 2):S6–S16. https://doi.org/10.1212/wnl.0000000000012781
    [Google Scholar]
  18. Hasan K, Nasher A, Al-Zaazaai A. In hospital outcomes of stroke patients admitted to Al-Wahda Teaching Hospital, Yemen: retrospective study 2019-2023. Adv Neurol Neurosci. 2024 Nov; 7:(3):1-07.
    [Google Scholar]
  19. Abdu H, Seyoum G. Sex differences in stroke risk factors, clinical profiles, and in-hospital outcomes among stroke patients admitted to the Medical Ward of Dessie Comprehensive Specialized Hospital, Northeast Ethiopia. Degener Neurol Neuromuscul Dis. 2022 Oct; 12:133–44. https://doi.org/10.2147/dnnd.S383564
    [Google Scholar]
  20. El-Hajj M, Salameh P, Rachidi S, Hosseini H. The epidemiology of stroke in the Middle East. Eur Stroke J. 2016 Sep; 1:(3):180–98. https://doi.org/10.1177/2396987316654338
    [Google Scholar]
  21. Gidey K, Hailu A. A prospective study of stroke characteristics, risk factors, and mortality in a Tertiary Hospital of Northern Ethiopia. Int J Gen Med. 2023 Nov; 16:5051–61. https://doi.org/10.2147/ijgm.S433353
    [Google Scholar]
  22. Abdo B, Abdullah M, Ahmed F, Alzanen K, Alhakamy M, Alshoaibi I, et al. Gender-based analysis of ischemic stroke risk factors: a retrospective analysis. J Emerg Med Trauma Acute Care. 2025 Feb; 2025:(1):6. https://doi.org/10.5339/jemtac.2025.6
    [Google Scholar]
  23. Chen C, Reeves MJ, He K, Morgenstern LB, Lisabeth LD. Sex differences in trends in stroke recurrence and postrecurrence mortality 2000-2020: population-based brain attack surveillance in Corpus Christi Project. Ann Neurol. 2024 Aug; 96:(2):332–42. https://doi.org/10.1002/ana.26955
    [Google Scholar]
  24. Steiner T, Mendoza G, De Georgia M, Schellinger P, Holle R, Hacke W. Prognosis of stroke patients requiring mechanical ventilation in a neurological critical care unit. Stroke. 1997 Apr; 28:(4):711–5. https://doi.org/10.1161/01.str.28.4.711
    [Google Scholar]
  25. Mowla A, Shakibajahromi B, Shahjouei S, Baharvahdat H, Harandi AA, Rahmani F, et al. SARS-CoV-2 infection might be a predictor of mortality in intracerebral hemorrhage. J Neurol Sci. 2022 Nov; 444:120497. https://doi.org/10.1016/j.jns.2022.120497
    [Google Scholar]
  26. Alghamdi SAM, Aldriweesh MA, Al Bdah BA, Alhasson MA, Alsaif SA, Alluhidan WA, et al. Stroke seasonality and weather association in a Middle East Country: a single tertiary center experience. Front Neurol. 2021 Oct; 12:707420. https://doi.org/10.3389/fneur.2021.707420
    [Google Scholar]
  27. Homoud B, Alhakami A, Almalki M, Shaheen M, Althuabiti A, AlKhathaami A, et al. The association of diabetes with ischemic stroke and transient ischemic attacks in a tertiary center in Saudi Arabia. Ann Saudi Med. 2020 Nov-Dec; 40:(6):449–55. https://doi.org/10.5144/0256-4947.2020.449
    [Google Scholar]
  28. Díaz A, Gerschcovich ER, Díaz AA, Antía F, Gonorazky S. Seasonal variation and trends in stroke hospitalizations and mortality in a South American community hospital. J Stroke Cerebrovasc Dis. 2013 Oct; 22:(7):e66–9. https://doi.org/10.1016/j.jstrokecerebrovasdis.2012.04.007
    [Google Scholar]
  29. Narrett JA, Mallawaarachchi I, Aldridge CM, Assefa ED, Patel A, Loomba JJ, et al. Increased stroke severity and mortality in patients with SARS-CoV-2 infection: an analysis from the N3C database. J Stroke Cerebrovasc Dis. 2023 Mar; 32:(3):106987. https://doi.org/10.1016/j.jstrokecerebrovasdis.2023.106987
    [Google Scholar]
  30. Robba C, Bonatti G, Battaglini D, Rocco PRM, Pelosi P. Mechanical ventilation in patients with acute ischaemic stroke: from pathophysiology to clinical practice. Crit Care. 2019 Dec; 23:(1):388. https://doi.org/10.1186/s13054-019-2662-8
    [Google Scholar]
/content/journals/10.5339/jemtac.2026.4
Loading
/content/journals/10.5339/jemtac.2026.4
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error