Omar Thaher

843 total citations
25 papers, 69 citations indexed

About

Omar Thaher is a scholar working on Surgery, Physiology and Pharmacy. According to data from OpenAlex, Omar Thaher has authored 25 papers receiving a total of 69 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Surgery, 10 papers in Physiology and 5 papers in Pharmacy. Recurrent topics in Omar Thaher's work include Bariatric Surgery and Outcomes (18 papers), Body Contouring and Surgery (10 papers) and Diet and metabolism studies (9 papers). Omar Thaher is often cited by papers focused on Bariatric Surgery and Outcomes (18 papers), Body Contouring and Surgery (10 papers) and Diet and metabolism studies (9 papers). Omar Thaher collaborates with scholars based in Germany, United States and Netherlands. Omar Thaher's co-authors include Christine Stroh, Martin Hukauf, Roland S. Croner, Günther A. Rezniczek, Clemens Tempfer, Urs Giger-Pabst, Torben Glatz, Stefanie Wolf, Ferdinand Köckerling and Sebastian Brinkmann and has published in prestigious journals such as BMC Cancer, Obesity Surgery and Langenbeck s Archives of Surgery.

In The Last Decade

Omar Thaher

16 papers receiving 68 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Omar Thaher Germany 6 59 22 11 10 7 25 69
Manel Riera United Kingdom 5 49 0.8× 31 1.4× 11 1.0× 15 1.5× 7 1.0× 9 74
Carlos Vaz Portugal 3 74 1.3× 21 1.0× 9 0.8× 26 2.6× 13 1.9× 6 83
Peng Choong Lau Malaysia 5 42 0.7× 19 0.9× 9 0.8× 9 0.9× 19 2.7× 14 79
Elisa Galfrascoli Italy 3 32 0.5× 8 0.4× 7 0.6× 7 0.7× 10 1.4× 10 51
Rossella D’Alessio Italy 5 79 1.3× 19 0.9× 23 2.1× 18 1.8× 15 2.1× 7 120
Nourah Alsharqawi Canada 5 84 1.4× 7 0.3× 7 0.6× 28 2.8× 15 2.1× 5 93
Emmy Arrue Spain 2 79 1.3× 18 0.8× 9 0.8× 35 3.5× 4 0.6× 5 81
Kathryn O’Keefe United States 4 101 1.7× 39 1.8× 30 2.7× 24 2.4× 8 1.1× 6 122
Sergi Sánchez-Cordero Spain 5 46 0.8× 7 0.3× 3 0.3× 10 1.0× 3 0.4× 12 56
Eudaldo López-Tomassetti Fernández Spain 4 38 0.6× 4 0.2× 4 0.4× 16 1.6× 6 0.9× 11 57

Countries citing papers authored by Omar Thaher

Since Specialization
Citations

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

Fields of papers citing papers by Omar Thaher

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Omar Thaher

This figure shows the co-authorship network connecting the top 25 collaborators of Omar Thaher. A scholar is included among the top collaborators of Omar Thaher 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 Omar Thaher. Omar Thaher 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.
2.
Thaher, Omar, et al.. (2025). Outcomes of Endoscopic Sleeve Gastroplasty: A Systematic Review. Medicina. 61(10). 1821–1821.
3.
Thaher, Omar, et al.. (2025). Vascular and Anatomical Challenges in Renal Transplant Surgery; What a Urologist Needs to know. Current Urology Reports. 26(1). 55–55.
4.
Thaher, Omar, et al.. (2025). Thromboembolic prophylaxis in bariatric and metabolic surgery: state-of-the-art according to the results of a nationwide registry study. Updates in Surgery. 77(7). 1923–1932. 1 indexed citations
5.
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Thaher, Omar, et al.. (2023). Outcome of Revisional Bariatric Surgery After Failed Sleeve Gastrectomy: a German Multicenter Study. Obesity Surgery. 33(11). 3362–3372. 9 indexed citations
7.
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Thaher, Omar, et al.. (2023). Long- and short-term outcomes of bariatric surgery in 7755 patients with obesity and comorbidities. Minerva Surgery. 78(2). 145–154. 1 indexed citations
9.
Thaher, Omar, et al.. (2023). Current status of metabolic surgery in patients with type I diabetes mellitus and obesity: a nationwide multicenter study. Langenbeck s Archives of Surgery. 408(1). 46–46. 1 indexed citations
10.
Thaher, Omar, et al.. (2023). Reflux disease following primary sleeve gastrectomy: risk factors and possible causes. Updates in Surgery. 75(4). 967–977.
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12.
Thaher, Omar, et al.. (2022). Outcome of Sleeve Gastrectomy Versus Roux-en-Y Gastric Bypass for Patients with Super Obesity (Body Mass Index > 50 kg/m2). Obesity Surgery. 32(5). 1546–1555. 8 indexed citations
13.
Thaher, Omar, et al.. (2022). Is development in bariatric surgery in Germany compatible with international standards? A review of 16 years of data. Updates in Surgery. 74(5). 1571–1579. 5 indexed citations
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Thaher, Omar, Martin Hukauf, & Christine Stroh. (2022). The impact of sleeve gastrectomy and gastric binding on weight loss and remission on comorbidities: a national registry-based study. Minerva Surgery. 77(5). 455–467. 2 indexed citations
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Thaher, Omar, Martin Hukauf, & Christine Stroh. (2021). Propensity Score Matching Sleeve Gastrectomy vs. Gastric Bypass with 5 Years of Follow-Up. Obesity Surgery. 31(12). 5156–5165. 9 indexed citations
18.
Thaher, Omar, Stefanie Wolf, Martin Hukauf, & Christine Stroh. (2021). Propensity Score–Matching Sleeve Gastrectomy (SG) vs. Gastric Bypass (RYGB) in Patients ≥ 60 Years. Obesity Surgery. 31(6). 2682–2690. 7 indexed citations
19.
Thaher, Omar, et al.. (2021). Remission of comorbidities, weight loss, and adverse events after Sleeve Gastrectomy and Roux-en-Y gastric bypass in patients with obesity. World Journal of Advanced Research and Reviews. 12(3). 205–217.
20.
Rezniczek, Günther A., Urs Giger-Pabst, Omar Thaher, & Cle mens Tempfer. (2020). Pressurized intraperitoneal aerosol chemotherapy (PIPAC) for rare gynecologic indications: peritoneal metastases from breast and endometrial cancer. BMC Cancer. 20(1). 1122–1122. 6 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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