Leka Sivakumar

718 total citations
10 papers, 254 citations indexed

About

Leka Sivakumar is a scholar working on Epidemiology, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Leka Sivakumar has authored 10 papers receiving a total of 254 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Epidemiology, 5 papers in Pulmonary and Respiratory Medicine and 4 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Leka Sivakumar's work include Acute Ischemic Stroke Management (9 papers), Cerebrovascular and Carotid Artery Diseases (5 papers) and Atrial Fibrillation Management and Outcomes (4 papers). Leka Sivakumar is often cited by papers focused on Acute Ischemic Stroke Management (9 papers), Cerebrovascular and Carotid Artery Diseases (5 papers) and Atrial Fibrillation Management and Outcomes (4 papers). Leka Sivakumar collaborates with scholars based in Canada, Australia and Saudi Arabia. Leka Sivakumar's co-authors include Kenneth Butcher, Mahesh Kate, Thomas Jeerakathil, Brian Buck, Richard Camicioli, Laura Gioia, Victor Choi, Jayme C. Kosior, Ashfaq Shuaib and Derek Emery and has published in prestigious journals such as Stroke, Evidence-based Complementary and Alternative Medicine and Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques.

In The Last Decade

Leka Sivakumar

10 papers receiving 249 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Leka Sivakumar Canada	7	171	87	83	52	47	10	254
Ju-Hun Lee South Korea	7	198 1.2×	124 1.4×	77 0.9×	121 2.3×	45 1.0×	9	291
Wing Chi Fong China	6	180 1.1×	69 0.8×	84 1.0×	116 2.2×	33 0.7×	10	239
Boris D. Aronovich Israel	9	159 0.9×	82 0.9×	72 0.9×	87 1.7×	30 0.6×	10	321
Gabriela Siedler Germany	10	130 0.8×	119 1.4×	72 0.9×	35 0.7×	60 1.3×	20	262
Takehiro Katano Japan	8	168 1.0×	31 0.4×	52 0.6×	70 1.3×	61 1.3×	37	241
Christoph Stretz United States	10	116 0.7×	33 0.4×	123 1.5×	49 0.9×	23 0.5×	46	270
Paul von Weitzel‐Mudersbach Denmark	11	144 0.8×	58 0.7×	103 1.2×	99 1.9×	12 0.3×	19	264
Tamara Sauer Germany	10	192 1.1×	43 0.5×	102 1.2×	85 1.6×	61 1.3×	17	298
Jose Danilo Bengzon Diestro Canada	11	140 0.8×	41 0.5×	112 1.3×	64 1.2×	31 0.7×	51	283
Simon Hellwig Germany	9	124 0.7×	113 1.3×	69 0.8×	43 0.8×	22 0.5×	20	269

Countries citing papers authored by Leka Sivakumar

Since Specialization

Citations

This map shows the geographic impact of Leka Sivakumar'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 Leka Sivakumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Leka Sivakumar more than expected).

Fields of papers citing papers by Leka Sivakumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leka Sivakumar. 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 Leka Sivakumar. The network helps show where Leka Sivakumar may publish in the future.

Co-authorship network of co-authors of Leka Sivakumar

This figure shows the co-authorship network connecting the top 25 collaborators of Leka Sivakumar. A scholar is included among the top collaborators of Leka Sivakumar 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 Leka Sivakumar. Leka Sivakumar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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10 of 10 papers shown

Ng, Kelvin, Dar Dowlatshahi, Brian Buck, et al.. (2020). Early Dabigatran Treatment After Transient Ischemic Attack and Minor Ischemic Stroke Does Not Result in Hemorrhagic Transformation. Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques. 47(5). 604–611. 6 indexed citations

Butcher, Kenneth, Kelvin Ng, Patrick Sheridan, et al.. (2020). Dabigatran Treatment of Acute Noncardioembolic Ischemic Stroke. Stroke. 51(4). 1190–1198. 28 indexed citations

Sivakumar, Leka, Mahesh Kate, Thomas Jeerakathil, et al.. (2016). White matter hyperintensity volume predicts persistent cognitive impairment in transient ischemic attack and minor stroke. International Journal of Stroke. 12(3). 264–272. 33 indexed citations

Gioia, Laura, Mahesh Kate, Leka Sivakumar, et al.. (2016). Early Rivaroxaban Use After Cardioembolic Stroke May Not Result in Hemorrhagic Transformation. Stroke. 47(7). 1917–1919. 39 indexed citations

Kate, Mahesh, Laura Gioia, Brian Buck, et al.. (2015). Dabigatran Therapy in Acute Ischemic Stroke Patients Without Atrial Fibrillation. Stroke. 46(9). 2685–2687. 17 indexed citations

Kate, Mahesh, Laura Gioia, Leka Sivakumar, et al.. (2015). Dynamic Evolution of Diffusion-Weighted Imaging Lesions in Patients With Minor Ischemic Stroke. Stroke. 46(8). 2318–2321. 10 indexed citations

Gioia, Laura, Mahesh Kate, Victor Choi, et al.. (2015). Ischemia in Intracerebral Hemorrhage Is Associated With Leukoaraiosis and Hematoma Volume, Not Blood Pressure Reduction. Stroke. 46(6). 1541–1547. 49 indexed citations

Sivakumar, Leka, Richard Camicioli, & Kenneth Butcher. (2014). Factors Associated with Cognitive Decline in Transient Ischemic Attack Patients. Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques. 41(3). 303–313. 5 indexed citations

Sivakumar, Leka, Mahesh Kate, Thomas Jeerakathil, et al.. (2014). Serial Montreal Cognitive Assessments Demonstrate Reversible Cognitive Impairment in Patients With Acute Transient Ischemic Attack and Minor Stroke. Stroke. 45(6). 1709–1715. 62 indexed citations

10.

Adams, Denise, Leka Sivakumar, Paul E. Grundy, et al.. (2013). CAM and Pediatric Oncology: Where Are All the Best Cases?. Evidence-based Complementary and Alternative Medicine. 2013. 1–6. 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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