Andreas Sieg

2.3k total citations
59 papers, 1.4k citations indexed

About

Andreas Sieg is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Andreas Sieg has authored 59 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Surgery, 19 papers in Pulmonary and Respiratory Medicine and 18 papers in Oncology. Recurrent topics in Andreas Sieg's work include Colorectal Cancer Screening and Detection (16 papers), Gastric Cancer Management and Outcomes (14 papers) and Neonatal Health and Biochemistry (12 papers). Andreas Sieg is often cited by papers focused on Colorectal Cancer Screening and Detection (16 papers), Gastric Cancer Management and Outcomes (14 papers) and Neonatal Health and Biochemistry (12 papers). Andreas Sieg collaborates with scholars based in Germany, United States and Belgium. Andreas Sieg's co-authors include Thomas Eisenbach, Wolfgang Stremmel, Kilian Friedrich, Jochen Rudi, Matthias Maiwald, Dirk Kuck, Peter R. Galle, Christof Kolb, Hermann Brenner and D. Ullrich and has published in prestigious journals such as Journal of Clinical Investigation, Gastroenterology and Hepatology.

In The Last Decade

Andreas Sieg

57 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Andreas Sieg Germany 23 674 438 386 202 194 59 1.4k
Shu‐Wen Jao Taiwan 21 1.1k 1.7× 214 0.5× 453 1.2× 146 0.7× 255 1.3× 67 1.7k
Yoshio Haga Japan 22 905 1.3× 572 1.3× 531 1.4× 117 0.6× 312 1.6× 82 1.8k
Mark Wilkinson United Kingdom 20 1.1k 1.7× 979 2.2× 602 1.6× 81 0.4× 183 0.9× 74 2.1k
Eberhard Mack United States 23 1.1k 1.7× 436 1.0× 461 1.2× 61 0.3× 78 0.4× 48 1.8k
Michael Schepke Germany 26 1.1k 1.7× 383 0.9× 411 1.1× 147 0.7× 107 0.6× 64 2.3k
J A Pain United Kingdom 20 779 1.2× 270 0.6× 239 0.6× 85 0.4× 55 0.3× 31 1.2k
Cameron N. Ghent Canada 28 1.4k 2.0× 229 0.5× 317 0.8× 81 0.4× 115 0.6× 62 3.0k
Ch. Herfarth Germany 17 662 1.0× 272 0.6× 353 0.9× 38 0.2× 69 0.4× 88 1.1k
Armando Gabrielli Italy 19 203 0.3× 366 0.8× 75 0.2× 24 0.1× 220 1.1× 40 1.4k
Richard Charnley United Kingdom 21 1.1k 1.7× 419 1.0× 1.1k 2.9× 46 0.2× 181 0.9× 73 1.7k

Countries citing papers authored by Andreas Sieg

Since Specialization
Citations

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

Fields of papers citing papers by Andreas Sieg

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Andreas Sieg

This figure shows the co-authorship network connecting the top 25 collaborators of Andreas Sieg. A scholar is included among the top collaborators of Andreas Sieg 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 Andreas Sieg. Andreas Sieg 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.
Friedrich, Kilian, Daniel Gotthardt, Christoph Eisenbach, et al.. (2015). Survival in patients with colorectal cancer diagnosed by screening colonoscopy. Gastrointestinal Endoscopy. 82(1). 133–137. 14 indexed citations
2.
Sieg, Andreas, Sebastian Beck, Sabine Scholl, et al.. (2013). Safety analysis of endoscopist‐directed propofol sedation: A prospective, national multicenter study of 24 441 patients in German outpatient practices. Journal of Gastroenterology and Hepatology. 29(3). 517–523. 62 indexed citations
3.
Friedrich, Kilian, Wolfgang Stremmel, & Andreas Sieg. (2012). Endoscopist-administered propofol sedation is safe - a prospective evaluation of 10,000 patients in an outpatient practice.. PubMed. 21(3). 259–63. 32 indexed citations
4.
Sieg, Andreas. (2009). Perspectives of colorectal cancer screening in Germany 2009. World Journal of Gastrointestinal Endoscopy. 1(1). 12–12. 5 indexed citations
5.
Sieg, Andreas, et al.. (2008). Mesenterialzyste: seltene Ursache abdomineller Beschwerden. DMW - Deutsche Medizinische Wochenschrift. 118(29/30). 1072–1076.
6.
7.
Sieg, Andreas, et al.. (2006). Ergebnisse der Vorsorge-Koloskopie 2005: Internet-basierte Dokumentation. DMW - Deutsche Medizinische Wochenschrift. 131(8). 379–383.
8.
Dietz, Matthew J., et al.. (2004). Band Erosion with Gastric Cancer. Obesity Surgery. 14(4). 559–561. 28 indexed citations
9.
Sieg, Andreas, et al.. (2003). Inhibition of insulin secretion via distinct signaling pathways in alpha2-adrenoceptor knockout mice. European Journal of Endocrinology. 149(4). 343–350. 76 indexed citations
10.
Sieg, Andreas, et al.. (2003). Screeningkoloskopie bei Personen zwischen 50 und 60 Jahren mit und ohne familiäres Risiko für Kolonkarzinom - eine prospektive Multizenterstudie. Zeitschrift für Gastroenterologie. 41(11). 1077–1082. 4 indexed citations
11.
12.
Sieg, Andreas, et al.. (2001). Prospective evaluation of complications in outpatient GI endoscopy: A survey among German gastroenterologists. Gastrointestinal Endoscopy. 53(6). 620–627. 232 indexed citations
13.
Sieg, Andreas, et al.. (2000). Wie sicher ist die Prämedikation in der ambulanten Endoskopie in Deutschland? - Eine prospektive Untersuchung in gastroenterologischen Fachpraxen -. DMW - Deutsche Medizinische Wochenschrift. 125(43). 1288–1293. 6 indexed citations
14.
Sieg, Andreas, et al.. (1999). Detection of colorectal neoplasms by the highly sensitive hemoglobin-haptoglobin complex in feces. International Journal of Colorectal Disease. 14(6). 267–271. 24 indexed citations
15.
Sieg, Andreas, et al.. (1998). Screening for colorectal neoplasms with a new immunological human faecal haemoglobin and albumin test. European Journal of Cancer Prevention. 7(4). 279–285. 12 indexed citations
16.
Güldutüna, S., Ulrich Langenbeck, Karl Walter Bock, Andreas Sieg, & U. Leuschner. (1995). Crigler-Najjar syndrome type II. Digestive Diseases and Sciences. 40(1). 28–32. 9 indexed citations
17.
Ullrich, D., et al.. (1991). The influence of gestational age on bilirubin conjugation in newborns. European Journal of Clinical Investigation. 21(1). 83–89. 8 indexed citations
18.
Sieg, Andreas, Rainer König, D. Ullrich, & Johan Fevery. (1990). Subfractionation of serum bilirubins by alkaline methanolysis and thin-layer chromatography. Journal of Hepatology. 11(2). 159–164. 31 indexed citations
19.
Ullrich, D., et al.. (1990). Low Fractions of Mono- and Diconjugated Bilirubin in Patients with β-Thalassemia. Journal of Pediatric Gastroenterology and Nutrition. 11(1). 21–26. 2 indexed citations
20.
Sieg, Andreas, et al.. (1989). Diuretikaresistenz bei Leberzirrhose: Pharmakologische Behandlungsansätze. Journal of Molecular Medicine. 67(15). 790–792. 1 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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