Joji Hagii

628 total citations
23 papers, 326 citations indexed

About

Joji Hagii is a scholar working on Epidemiology, Cardiology and Cardiovascular Medicine and Internal Medicine. According to data from OpenAlex, Joji Hagii has authored 23 papers receiving a total of 326 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Epidemiology, 17 papers in Cardiology and Cardiovascular Medicine and 5 papers in Internal Medicine. Recurrent topics in Joji Hagii's work include Acute Ischemic Stroke Management (18 papers), Atrial Fibrillation Management and Outcomes (13 papers) and Antiplatelet Therapy and Cardiovascular Diseases (5 papers). Joji Hagii is often cited by papers focused on Acute Ischemic Stroke Management (18 papers), Atrial Fibrillation Management and Outcomes (13 papers) and Antiplatelet Therapy and Cardiovascular Diseases (5 papers). Joji Hagii collaborates with scholars based in Japan. Joji Hagii's co-authors include Norifumi Metoki, Minoru Yasujima, Shin Saito, Hirofumi Tomita, Ken Okumura, Takaatsu Kamada, Tomohiro Osanai, Satoshi Seino, Koki Takahashi and Satoko Sasaki and has published in prestigious journals such as Stroke, Thrombosis Research and Hypertension Research.

In The Last Decade

Joji Hagii

22 papers receiving 319 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Joji Hagii Japan	10	202	172	78	66	55	23	326
Ju-Hun Lee South Korea	7	124 0.6×	198 1.2×	77 1.0×	45 0.7×	44 0.8×	9	291
Stefano Spolveri Italy	5	307 1.5×	241 1.4×	47 0.6×	101 1.5×	45 0.8×	9	468
Eung Gyu Kim South Korea	9	77 0.4×	118 0.7×	137 1.8×	46 0.7×	26 0.5×	28	319
César Minelli Brazil	7	51 0.3×	145 0.8×	58 0.7×	21 0.3×	72 1.3×	13	246
Lucie Garnier France	10	78 0.4×	232 1.3×	63 0.8×	31 0.5×	101 1.8×	13	340
Takehiro Katano Japan	8	31 0.2×	168 1.0×	52 0.7×	61 0.9×	65 1.2×	37	241
James Castle United States	4	55 0.3×	149 0.9×	43 0.6×	23 0.3×	24 0.4×	5	212
J Spiesser France	6	70 0.3×	135 0.8×	41 0.5×	16 0.2×	119 2.2×	14	263
Mayte E. van Alebeek Netherlands	9	51 0.3×	138 0.8×	35 0.4×	21 0.3×	55 1.0×	9	230
Sven‐Erik Eriksson Sweden	6	71 0.4×	287 1.7×	93 1.2×	29 0.4×	168 3.1×	11	385

Countries citing papers authored by Joji Hagii

Since Specialization

Citations

This map shows the geographic impact of Joji Hagii's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Joji Hagii with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Joji Hagii more than expected).

Fields of papers citing papers by Joji Hagii

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joji Hagii. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Joji Hagii. The network helps show where Joji Hagii may publish in the future.

Co-authorship network of co-authors of Joji Hagii

This figure shows the co-authorship network connecting the top 25 collaborators of Joji Hagii. A scholar is included among the top collaborators of Joji Hagii based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Joji Hagii. Joji Hagii is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hagii, Joji, et al.. (2025). Biomarkers for the detection of covert atrial fibrillation after ischemic stroke: NT-proBNP or BNP?. Journal of Stroke and Cerebrovascular Diseases. 34(6). 108239–108239. 1 indexed citations

Hagii, Joji, Shin Saito, Takaatsu Kamada, et al.. (2023). Low Creatinine Clearance Is a Risk Factor for Severe Cardioembolic Stroke in Japanese Female Patients. In Vivo. 37(1). 336–344. 1 indexed citations

Iwata, Manabu, et al.. (2022). The effects of combined early oral health care and early mobilisation on the incidence of stroke-associated pneumonia. Journal of Stroke and Cerebrovascular Diseases. 32(1). 106893–106893. 3 indexed citations

Hagii, Joji, Norifumi Metoki, Shin Saito, et al.. (2021). Persistent or permanent atrial fibrillation is associated with severe cardioembolic stroke in patients with non-valvular atrial fibrillation. Thrombosis Journal. 19(1). 22–22. 6 indexed citations

Osanai, Tomohiro, et al.. (2020). Incidence and characteristics of spontaneous platelet macro-aggregation in acute ischemic stroke. Journal of Thrombosis and Thrombolysis. 51(1). 96–101. 2 indexed citations

Kitajima, Maiko, et al.. (2019). Collagen-Induced Platelet Aggregates, Diabetes, and Aspirin Therapy Predict Clinical Outcomes in Acute Ischemic Stroke. Journal of Stroke and Cerebrovascular Diseases. 28(8). 2302–2310. 3 indexed citations

Kitajima, Maiko, et al.. (2019). Factors Influencing Quality of Life in Stroke Patients: Focus on Eating Habits. Journal of Stroke and Cerebrovascular Diseases. 28(6). 1623–1628. 9 indexed citations

Metoki, Norifumi, Joji Hagii, Shin Saito, et al.. (2019). D-dimer and C-reactive Protein as Potential Biomarkers for Diagnosis of Trousseau's Syndrome in Patients with Cerebral Embolism. Journal of Stroke and Cerebrovascular Diseases. 29(2). 104534–104534. 19 indexed citations

Hagii, Joji, Norifumi Metoki, Shin Saito, et al.. (2018). Low Body Mass Index is a Poor Prognosis Factor in Cardioembolic Stroke Patients with NonValvular Atrial Fibrillation. Journal of Stroke and Cerebrovascular Diseases. 27(11). 3155–3162. 5 indexed citations

10.

Tomita, Hirofumi, Shingo Sasaki, Joji Hagii, & Norifumi Metoki. (2018). Covert atrial fibrillation and atrial high-rate episodes as a potential cause of embolic strokes of undetermined source: Their detection and possible management strategy. Journal of Cardiology. 72(1). 1–9. 18 indexed citations

11.

Kitajima, Maiko, Joji Hagii, Satoshi Seino, et al.. (2018). Spontaneous Micro-Aggregation of Platelets Predicts Clinical Outcome in Acute Ischemic Stroke. Journal of Stroke and Cerebrovascular Diseases. 27(8). 2074–2081. 4 indexed citations

12.

Sasaki, Aya, et al.. (2016). Quality of Life in Physical and Psychological Health and Social Environment at Posthospitalization Period in Patients with Stroke. Journal of Stroke and Cerebrovascular Diseases. 25(10). 2482–2487. 8 indexed citations

13.

Metoki, Norifumi, Norio Sugawara, Joji Hagii, et al.. (2016). Relationship between the lesion location of acute ischemic stroke and early depressive symptoms in Japanese patients. Annals of General Psychiatry. 15(1). 12–12. 27 indexed citations

14.

Hagii, Joji, Hirofumi Tomita, Norifumi Metoki, et al.. (2016). Effect of rivaroxaban on prothrombin fragment 1 + 2 compared with warfarin in patients with acute cardioembolic stroke: Insight from its serial measurement. Thrombosis Research. 148. 9–14. 6 indexed citations

15.

Tomita, Hirofumi, Joji Hagii, Norifumi Metoki, et al.. (2016). Impact of Atrial Natriuretic Peptide Value for Predicting Paroxysmal Atrial Fibrillation in Ischemic Stroke Patients. Journal of Stroke and Cerebrovascular Diseases. 26(4). 772–778. 17 indexed citations

16.

Tomita, Hirofumi, Joji Hagii, Norifumi Metoki, et al.. (2015). Severity and Functional Outcome of Patients with Cardioembolic Stroke Occurring during Non-vitamin K Antagonist Oral Anticoagulant Treatment. Journal of Stroke and Cerebrovascular Diseases. 24(6). 1430–1437. 20 indexed citations

17.

Tomita, Hirofumi, Joji Hagii, Norifumi Metoki, et al.. (2015). Impact of Sex Difference on Severity and Functional Outcome in Patients with Cardioembolic Stroke. Journal of Stroke and Cerebrovascular Diseases. 24(11). 2613–2618. 29 indexed citations

18.

Sugawara, Norio, Norifumi Metoki, Joji Hagii, et al.. (2015). Effect of depressive symptoms on the length of hospital stay among patients hospitalized for acute stroke in Japan. Neuropsychiatric Disease and Treatment. 11. 2551–2551. 21 indexed citations

19.

Saito, Shin, Hirofumi Tomita, Yoshihiro Kimura, et al.. (2014). Reduced Smoke-like Echo and Resolved Thrombus in the Left Atrium with Rivaroxaban Therapy in an Acute Cardioembolic Stroke Patient. Journal of Stroke and Cerebrovascular Diseases. 23(6). 1747–1749. 15 indexed citations

20.

Osanai, Tomohiro, Norifumi Metoki, Joji Hagii, et al.. (2013). Coupling factor 6 enhances the spontaneous microaggregation of platelets by decreasing cytosolic cAMP irrespective of antiplatelet therapy. Hypertension Research. 36(6). 520–527. 5 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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