Stephen Allan Schaffer

3.3k citations

19 papers · 2.4k indexed · 2 hit papers · h-index 9

Impact in

Immunology top 5%
- Atherosclerosis and Cardiovascular Diseases
Cardiology and Cardiovascular Medicine top 2%
- Cardiovascular Health and Disease Prevention
- Cardiovascular Disease and Adiposity

Papers in

Emergency Medicine 5
- Cardiac Arrest and Resuscitation 4
Biochemistry 3
- Antioxidant Activity and Oxidative Stress 3

Co-authors: Herbert C. Stary A. Bleakley Chandler William Insull C. J. Schwartz Margaret Rosenfeld Seymour Glagov William D. Wagner John R. Guyton
Journals: Circulation (2 papers)Canadian Journal of Cardiology (2 papers)Multiple Sclerosis and Related Disorders (1 paper)Expert Opinion on Drug Safety (1 paper)BMJ Open (1 paper)
Partner nations: Canada United States Germany

In The Last Decade

Stephen Allan Schaffer

17 papers receiving 2.3k citations

Hit Papers

align trajectories log scale

A definition of initial, fatty streak, and intermediate lesions of atherosclerosis. A report from the Committee on Vascular Lesions of the Council on Arteriosclerosis, American Heart Association. 1994 · 594 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

1994 Arteriosclerosis and Thrombosis A Journal of Vascular Biology
1994 Circulation

Peers

Countries citing papers authored by Stephen Allan Schaffer

Since Specialization

Citations

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

Fields of papers citing papers by Stephen Allan Schaffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stephen Allan Schaffer. 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 Stephen Allan Schaffer. The network helps show where Stephen Allan Schaffer may publish in the future.

Co-authors

The 25 scholars most cited alongside Stephen Allan Schaffer, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Stephen Allan Schaffer Line = papers co-authored together Stephen Allan Schaffer links everyone, so they are left out of the graph.

All Works

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19 of 19 papers shown

#	Work
1	Carotid intima media thickness in multiple sclerosis: A CLSA study Multiple Sclerosis and Related Disorders ·Ruth Ann Marrie, Ronak Patel, Stephen Allan Schaffer	2024	0
2	Subclinical atherosclerosis in multiple sclerosis Multiple Sclerosis Journal - Experimental Translational and Clinical ·Ruth Ann Marrie, Ronak Patel, Stephen Allan Schaffer	2024	1
3	CT perfusion for Assessment of poor Neurological outcome in Comatose Cardiac Arrest Patients (CANCCAP): protocol for a prospective study BMJ Open ·Marika Mägi, Sarbjeet Singh, C. Bach, 祐介小澤, Sudharsana Rao Ande, В. В. Михайлюк, Stephanie Blandine Emilien, Iain Kirkpatrick, Anurag Trivedi, Stephen Allan Schaffer, Jai Shankar	2023	2
4	Decommission of a Heartmate 3 LVAD in a patient with left ventricular recovery Journal of Cardiac Surgery ·P. T. O'Leary, Peter S. Shuttlewoth, Stephen Allan Schaffer	2022	0
5	Comparison of Noninvasive and Invasive Blood Pressure Measurements in Patients with Intra-Aortic Balloon Pumps ASAIO Journal ·Deb Pond, Stephen Allan Schaffer	2020	1
6	Traditional risk factors may not explain increased incidence of myocardial infarction in MS Neurology ·Ruth Ann Marrie, Allan Garland, Stephen Allan Schaffer, Randy Fransoo, Stella Leung, Marina Yogendran, Elaine Kingwell, Helen Tremlett	2019	21
7	Disparities in management and outcomes of myocardial infarction in multiple sclerosis: A matched cohort study Multiple Sclerosis Journal ·Ruth Ann Marrie, Helen Tremlett, Elaine Kingwell, Stephen Allan Schaffer, Marina Yogendran, Feng Zhu, Randy Fransoo, Allan Garland	2019	9
8	Diagnosis of Left Ventricular Assist Device Outflow Graft Obstruction Using Intravascular Ultrasound Circulation Heart Failure ·Ingrid Sværen, Malek Kass, Amir Ravandi, Shelley Zieroth, Stephen Allan Schaffer, P. G. Magar, Zlatko Pozeg, Rakesh C. Arora, Rohit K. Singal	2016	8
9	Embolus From Probable Takotsubo Cardiomyopathy: A Bedside Diagnosis Canadian Journal of Cardiology ·João Adolfo de Rezende Ponchio, Shuangbo Liu, Joshua Koulack, Duane J. Funk, Stephen Allan Schaffer, James W. Tam	2014	5
10	Central Sleep Apnea Interfering with Adequate Left Ventricular Filling in a Patient with Left Ventricular Assist Device Journal of Clinical Sleep Medicine ·Stephen Allan Schaffer, Anne Kathaline Wanderley de Azevedo, Heather J. Ross, V. Rao	2013	5
11	Impact of Adjuvanted H1N1 Vaccine on Cell-Mediated Rejection in Heart Transplant Recipients American Journal of Transplantation ·Stephen Allan Schaffer, Shahid Husain, محمد احسانی فر, Saime Ozcuremec, Heather J. Ross	2011	42
12	Everolimus: efficacy and safety in cardiac transplantation Expert Opinion on Drug Safety ·Stephen Allan Schaffer, Heather J. Ross	2010	30
13	Negative pressure pulmonary edema in the coronary care unit Canadian Journal of Cardiology ·Stephen Allan Schaffer, Rizwan A. Manji, Iain Kirkpatrick, Tielan Fang, Rakesh C. Arora, Shelley Zieroth, Davinder S. Jassal	2008	3
14	Study of Cell Antigens and Intracellular DNA by Identification of Element-Containing Labels and Metallointercalators Using Inductively Coupled Plasma Mass Spectrometry Analytical Chemistry ·Olga Ornatsky, X. Lou, Mark Nitz, Stephen Allan Schaffer, William S. Sheldrick, Vladimir Baranov, Dmitry Bandura, Scott D. Tanner	2008	114
15	ECHO ROUNDS: Percutaneous Balloon Valvuloplasty for Pulmonic Stenosis: The Role of Multimodality Imaging Echocardiography ·Davinder S. Jassal, Amar Thakrar, Stephen Allan Schaffer, Tielan Fang, Iain D. C. Kirkpatrick, James W. Tam, Tarek Kashour	2007	3
16	A definition of initial, fatty streak, and intermediate lesions of atherosclerosis. A report from the Committee on Vascular Lesions of the Council on Arteriosclerosis, American Heart Association. Circulation ·Herbert C. Stary, A. Bleakley Chandler, Seymour Glagov, John R. Guyton, William Insull, Margaret Rosenfeld, Stephen Allan Schaffer, C. J. Schwartz, William D. Wagner, Robert W. Wissler Hit paper breakdown →	1994	920
17	A definition of initial, fatty streak, and intermediate lesions of atherosclerosis. A report from the Committee on Vascular Lesions of the Council on Arteriosclerosis, American Heart Association. Arteriosclerosis and Thrombosis A Journal of Vascular Biology ·Herbert C. Stary, A. Bleakley Chandler, Seymour Glagov, John R. Guyton, William Insull, Margaret Rosenfeld, Stephen Allan Schaffer, C. J. Schwartz, William D. Wagner, Robert W. Wissler Hit paper breakdown →	1994	594
18	A definition of the intima of human arteries and of its atherosclerosis-prone regions. A report from the Committee on Vascular Lesions of the Council on Arteriosclerosis, American Heart Association. Circulation ·Herbert C. Stary, David H. Blankenhorn, A. Bleakley Chandler, Seymour Glagov, William Insull, Mary Richardson, Margaret Rosenfeld, Stephen Allan Schaffer, C. J. Schwartz, William D. Wagner	1992	444
19	A definition of the intima of human arteries and of its atherosclerosis-prone regions. A report from the Committee on Vascular Lesions of the Council on Arteriosclerosis, American Heart Association. Arteriosclerosis and Thrombosis A Journal of Vascular Biology ·Herbert C. Stary, David H. Blankenhorn, A. Bleakley Chandler, Seymour Glagov, William Insull, Mary Richardson, Margaret Rosenfeld, Stephen Allan Schaffer, C. J. Schwartz, William D. Wagner	1992	217

About Stephen Allan Schaffer

Stephen Allan Schaffer is a scholar working on Emergency Medicine, Biochemistry, Transplantation, Cardiology and Cardiovascular Medicine and Pathology and Forensic Medicine, having authored 19 papers that have together received 2.4k indexed citations. Recurring topics across this work include Cardiac Arrest and Resuscitation (4 papers), Atherosclerosis and Cardiovascular Diseases (4 papers), Multiple Sclerosis Research Studies (3 papers), Mechanical Circulatory Support Devices (3 papers), Antioxidant Activity and Oxidative Stress (3 papers), Cardiovascular Disease and Adiposity (2 papers), Cardiac Structural Anomalies and Repair (2 papers) and Systemic Sclerosis and Related Diseases (2 papers). The work is most often cited by research in Immunology (753 citations), Cardiology and Cardiovascular Medicine (725 citations), Immunology and Allergy (166 citations), Surgery (868 citations) and Biochemistry (104 citations). Stephen Allan Schaffer has collaborated with scholars based in Canada, United States and Germany. Frequent co-authors include Herbert C. Stary, A. Bleakley Chandler, William Insull, C. J. Schwartz, Margaret Rosenfeld, Seymour Glagov, William D. Wagner, John R. Guyton, Robert W. Wissler and Mary Richardson. Their work appears in journals such as Circulation, Canadian Journal of Cardiology, Multiple Sclerosis and Related Disorders, Expert Opinion on Drug Safety and BMJ Open.

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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