John C. Lappas

2.8k total citations
62 papers, 1.8k citations indexed

About

John C. Lappas is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, John C. Lappas has authored 62 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Surgery, 20 papers in Gastroenterology and 12 papers in Pulmonary and Respiratory Medicine. Recurrent topics in John C. Lappas's work include Gastrointestinal disorders and treatments (22 papers), Intestinal and Peritoneal Adhesions (15 papers) and Intestinal Malrotation and Obstruction Disorders (13 papers). John C. Lappas is often cited by papers focused on Gastrointestinal disorders and treatments (22 papers), Intestinal and Peritoneal Adhesions (15 papers) and Intestinal Malrotation and Obstruction Disorders (13 papers). John C. Lappas collaborates with scholars based in United States, Italy and United Kingdom. John C. Lappas's co-authors include Dean D. T. Maglinte, Douglas K. Rex, Kumaresan Sandrasegaran, Frederick M. Kelvin, Darel E. Heitkamp, Stanley M. Chernish, Howard Thomas, D D Maglinte, Michael Chiorean and Kenyon K. Kopecky and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Radiology.

In The Last Decade

John C. Lappas

62 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John C. Lappas United States 24 1.5k 546 408 314 205 62 1.8k
D D Maglinte United States 18 965 0.6× 334 0.6× 329 0.8× 206 0.7× 159 0.8× 42 1.2k
Barry Salky United States 24 1.5k 1.0× 248 0.5× 540 1.3× 691 2.2× 243 1.2× 56 1.9k
Dickens St‐Vil Canada 22 1.1k 0.7× 117 0.2× 304 0.7× 87 0.3× 151 0.7× 48 1.4k
Muthukumaran Rangarajan India 22 1.6k 1.1× 326 0.6× 598 1.5× 328 1.0× 287 1.4× 70 1.7k
Bruce A. Orkin United States 22 1.2k 0.8× 189 0.3× 180 0.4× 516 1.6× 42 0.2× 57 1.4k
R W Motson United Kingdom 24 1.1k 0.8× 79 0.1× 501 1.2× 483 1.5× 84 0.4× 63 1.4k
Danny Rosin Israel 22 1.4k 0.9× 83 0.2× 438 1.1× 552 1.8× 230 1.1× 104 1.7k
Peter Pokieser Austria 21 698 0.5× 277 0.5× 538 1.3× 110 0.4× 54 0.3× 71 1.2k
Grigoris Chatzimavroudis Greece 22 1.4k 0.9× 384 0.7× 994 2.4× 494 1.6× 65 0.3× 126 1.7k
Deborah Nagle United States 19 1.4k 0.9× 166 0.3× 230 0.6× 729 2.3× 41 0.2× 60 1.7k

Countries citing papers authored by John C. Lappas

Since Specialization
Citations

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

Fields of papers citing papers by John C. Lappas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John C. Lappas. 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 John C. Lappas. The network helps show where John C. Lappas may publish in the future.

Co-authorship network of co-authors of John C. Lappas

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

All Works

20 of 20 papers shown
1.
Ceppa, DuyKhanh P., Carlo Rosati, Lola Chabtini, et al.. (2017). Development of a Multidisciplinary Program to Expedite Care of Esophageal Emergencies. The Annals of Thoracic Surgery. 104(3). 1054–1061. 3 indexed citations
2.
Tirkes, Temel, Kumaresan Sandrasegaran, Aashish Patel, et al.. (2012). Peritoneal and Retroperitoneal Anatomy and Its Relevance for Cross-Sectional Imaging. Radiographics. 32(2). 437–451. 102 indexed citations
3.
Maglinte, Dean D. T., Marc Kohli, Stefania Romano, & John C. Lappas. (2009). Air (CO2) Double-Contrast Barium Enteroclysis. Radiology. 252(3). 633–641. 13 indexed citations
4.
Rajesh, Arumugam, Kumaresan Sandrasegaran, S. Gregory Jennings, et al.. (2008). Comparison of capsule endoscopy with enteroclysis in the investigation of small bowel disease. Abdominal Imaging. 34(4). 459–466. 24 indexed citations
5.
Maglinte, Dean D. T., Kumaresan Sandrasegaran, & John C. Lappas. (2007). CT Enteroclysis: Techniques and Applications. Radiologic Clinics of North America. 45(2). 289–301. 23 indexed citations
6.
Sandrasegaran, Kumaresan, Arumugam Rajesh, Chandana Lall, et al.. (2004). Gastrointestinal complications of bariatric Roux-en-Y gastric bypass surgery. European Radiology. 15(2). 254–262. 24 indexed citations
7.
Sandrasegaran, Kumaresan, Kenyon K. Kopecky, Arumugam Rajesh, & John C. Lappas. (2004). Proximal small bowel intussusceptions in adults: CT appearance and clinical significance. Abdominal Imaging. 29(6). 653–657. 38 indexed citations
8.
Maglinte, Dean D. T., Darel E. Heitkamp, Howard Thomas, Frederick M. Kelvin, & John C. Lappas. (2003). Current concepts in imaging of small bowel obstruction. Radiologic Clinics of North America. 41(2). 263–283. 103 indexed citations
9.
Maglinte, Dean D. T., John C. Lappas, Darel E. Heitkamp, G N Bender, & Frederick M. Kelvin. (2003). Technical refinements in enteroclysis. Radiologic Clinics of North America. 41(2). 213–229. 34 indexed citations
10.
Sandrasegaran, Kumaresan, Dean D. T. Maglinte, Howard Thomas, Frederick M. Kelvin, & John C. Lappas. (2003). The multifaceted role of radiology in small bowel obstruction. Seminars in Ultrasound CT and MRI. 24(5). 319–335. 15 indexed citations
11.
Maglinte, Dean D. T., Greg N. Bender, Darel E. Heitkamp, John C. Lappas, & Frederick M. Kelvin. (2003). Multidetector-row helical CT enteroclysis. Radiologic Clinics of North America. 41(2). 249–262. 81 indexed citations
12.
Rex, Douglas K., David Mark, Brian Clarke, John C. Lappas, & G A Lehman. (1995). Flexible sigmoidoscopy plus air-contrast barium enema versus colonoscopy for evaluation of symptomatic patients without evidence of bleeding. Gastrointestinal Endoscopy. 42(2). 132–138. 29 indexed citations
13.
Maglinte, Dean D. T., et al.. (1994). Nasointestinal tube for decompression or enteroclysis: Experience with 150 patients. Abdominal Imaging. 19(2). 108–112. 23 indexed citations
14.
Rex, Douglas K., et al.. (1992). Quality of air contrast barium enema performed the same day as incomplete colonoscopy with air insufflation. Gastrointestinal Endoscopy. 38(6). 693–695. 9 indexed citations
15.
Rex, Douglas K., et al.. (1992). Selection of Constipated Patients as Subtotal Colectomy Candidates. Journal of Clinical Gastroenterology. 15(3). 212–217. 14 indexed citations
16.
Rex, Douglas K., et al.. (1990). Association of anterior ectopic anus and partial absence of levator musculature in a woman with impaired defecation. Diseases of the Colon & Rectum. 33(11). 974–976. 5 indexed citations
17.
Rex, Douglas K., et al.. (1989). Enteroclysis in the evaluation of suspected small intestinal bleeding. Gastroenterology. 97(1). 58–60. 81 indexed citations
18.
Lappas, John C., et al.. (1988). Diverticular disease: imaging with post-double-contrast sigmoid flush.. Radiology. 168(1). 35–37. 5 indexed citations
19.
Conces, Dewey J., Robert D. Tarver, & John C. Lappas. (1988). The Value of Opacification of the Esophagus by Low Density Barium Paste in Computer Tomography of the Thorax. Journal of Computer Assisted Tomography. 12(2). 202–205. 3 indexed citations
20.
Hawes, Robert H., Glen A. Lehman, Katherine W. O’Connor, Kenyon K. Kopecky, & John C. Lappas. (1988). Effect of instrument diameter on the depth of penetration of fiberoptic sigmoidoscopes. Gastrointestinal Endoscopy. 34(1). 28–31. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by D D Maglinte Breakdown of academic impact, for papers by Barry Salky Breakdown of academic impact, for papers by Dickens St‐Vil Breakdown of academic impact, for papers by Muthukumaran Rangarajan Breakdown of academic impact, for papers by Bruce A. Orkin Breakdown of academic impact, for papers by R W Motson Breakdown of academic impact, for papers by Danny Rosin Breakdown of academic impact, for papers by Peter Pokieser Breakdown of academic impact, for papers by Grigoris Chatzimavroudis Breakdown of academic impact, for papers by Deborah Nagle
Rankless by CCL
2026