Ralph Peterli

7.8k total citations · 3 hit papers
133 papers, 5.3k citations indexed

About

Ralph Peterli is a scholar working on Surgery, Physiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ralph Peterli has authored 133 papers receiving a total of 5.3k indexed citations (citations by other indexed papers that have themselves been cited), including 102 papers in Surgery, 36 papers in Physiology and 24 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ralph Peterli's work include Bariatric Surgery and Outcomes (71 papers), Esophageal and GI Pathology (28 papers) and Diet and metabolism studies (25 papers). Ralph Peterli is often cited by papers focused on Bariatric Surgery and Outcomes (71 papers), Esophageal and GI Pathology (28 papers) and Diet and metabolism studies (25 papers). Ralph Peterli collaborates with scholars based in Switzerland, United States and United Kingdom. Ralph Peterli's co-authors include Thomas Peters, Christoph Beglinger, Béatrice Kern, Bettina K. Wölnerhanssen, Jürgen Drewe, Yves Borbély, Markus von Flüe, Marco Bueter, Markus Gass and Christoph Ackermann and has published in prestigious journals such as JAMA, Journal of Clinical Investigation and SHILAP Revista de lepidopterología.

In The Last Decade

Ralph Peterli

126 papers receiving 5.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Effect of Laparoscopic Sleeve Gastrectomy vs Laparoscopic Roux-en-Y Gastric Bypass on Weight Loss in Patients With Morbid Obesity

2018 799 citations Ralph Peterli, Bettina K. Wölnerhanssen et al. profile →
Metabolic and Hormonal Changes After Laparoscopic Roux-en-Y Gastric Bypass and Sleeve Gastrectomy: a Randomized, Prospective Trial

2012 375 citations Ralph Peterli, Thomas Peters et al. Obesity Surgery profile →
Insulin resistance causes inflammation in adipose tissue

2018 348 citations Anne Christin Meyer‐Gerspach, Christoph Beglinger et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ralph Peterli Switzerland	34	3.8k	2.1k	790	788	529	133	5.3k
Marco Bueter Switzerland	36	3.8k 1.0×	2.5k 1.2×	677 0.9×	492 0.6×	234 0.4×	147	5.2k
Wendy A. Brown Australia	39	4.4k 1.1×	2.1k 1.0×	466 0.6×	833 1.1×	973 1.8×	175	6.5k
Michel M. Murr United States	41	3.0k 0.8×	1.0k 0.5×	389 0.5×	694 0.9×	763 1.4×	142	4.5k
Kenneth G. MacDonald United States	23	2.9k 0.8×	2.7k 1.2×	842 1.1×	393 0.5×	627 1.2×	36	4.8k
Vittorio Giusti Switzerland	35	2.2k 0.6×	1.7k 0.8×	536 0.7×	263 0.3×	692 1.3×	100	3.8k
Gianfranço Silecchia Italy	36	3.0k 0.8×	945 0.4×	491 0.6×	1.1k 1.4×	652 1.2×	181	4.6k
M Castagneto Italy	38	4.7k 1.2×	3.1k 1.4×	1.6k 2.1×	685 0.9×	925 1.7×	217	7.4k
G Nanni Italy	31	3.1k 0.8×	2.2k 1.0×	1.2k 1.5×	474 0.6×	653 1.2×	90	4.9k
J. Christopher Eagon United States	31	2.1k 0.5×	1.8k 0.9×	781 1.0×	293 0.4×	1.5k 2.8×	60	4.6k
Amerigo Iaconelli Italy	21	3.0k 0.8×	2.2k 1.0×	1.3k 1.6×	284 0.4×	325 0.6×	60	4.3k

Countries citing papers authored by Ralph Peterli

Since Specialization

Citations

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

Fields of papers citing papers by Ralph Peterli

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ralph Peterli

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Kraljević, Marko, Bettina K. Wölnerhanssen, Thomas Peters, et al.. (2025). Long-Term Outcomes of Laparoscopic Roux-en-Y Gastric Bypass vs Laparoscopic Sleeve Gastrectomy for Obesity. JAMA Surgery. 160(4). 369–369. 11 indexed citations

Meyer‐Gerspach, Anne Christin, Ralph Peterli, Suzanne Edwards, et al.. (2025). Effect of laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass on esophageal motility and gastroesophageal reflux at more than 5 years in patients with severe obesity. Surgery for Obesity and Related Diseases. 21(9). 1065–1072. 1 indexed citations

Peterli, Ralph, et al.. (2024). Improving obesity management: Insights from the ACTION Switzerland survey of people with obesity, physicians and dietitians. Clinical Obesity. 15(2). e12716–e12716.

Kraljević, Marko, et al.. (2024). Role of sleeve gastrectomy in improving metabolic syndrome: an overview. Updates in Surgery. 77(7). 2031–2036.

Müller, Philip C., et al.. (2024). Comparison of 2D 4K vs. 3D HD laparoscopic imaging systems in bariatric surgery: study protocol for a randomized controlled prospective trial. Trials. 25(1). 140–140.

Wölnerhanssen, Bettina K., Anne Christin Meyer‐Gerspach, Matthias Sauter, et al.. (2023). Prospective clinical cohort study: low incidence of Barrett esophagus but high rate of reflux disease at 5-year follow-up after sleeve gastrectomy versus Roux-en-Y gastric bypass. Surgery for Obesity and Related Diseases. 19(7). 707–715. 7 indexed citations

Mongelli, Francesco, et al.. (2022). Reoperative bariatric surgery after primary laparoscopic gastric plication for morbid obesity: a systematic review and meta-analysis. Langenbeck s Archives of Surgery. 407(5). 1839–1850. 2 indexed citations

Grönroos, Sofia, Saija Hurme, Ralph Peterli, et al.. (2022). Validation of the individualized metabolic surgery score for bariatric procedure selection in the merged data of two randomized clinical trials (SLEEVEPASS and SM-BOSS). Surgery for Obesity and Related Diseases. 19(5). 522–529. 5 indexed citations

Meyer‐Gerspach, Anne Christin, Ralph Peterli, Thomas Peters, et al.. (2020). First-Phase Insulin and Amylin after Bariatric Surgery: A Prospective Randomized Trial on Patients with Insulin Resistance or Diabetes after Gastric Bypass or Sleeve Gastrectomy. Obesity Facts. 13(6). 584–595. 7 indexed citations

10.

Aarts, Edo O., Volker Lange, Andreas Plamper, et al.. (2020). Banding the Pouch with a Non-adjustable Ring as Revisional Procedure in Patients with Insufficient Results After Roux-en-Y Gastric Bypass: Short-term Outcomes of a Multicenter Cohort Study. Obesity Surgery. 30(3). 797–803. 11 indexed citations

11.

Wölnerhanssen, Bettina K., Lucian Cajacob, Jens F. Rehfeld, et al.. (2016). Gut hormone secretion, gastric emptying, and glycemic responses to erythritol and xylitol in lean and obese subjects. American Journal of Physiology-Endocrinology and Metabolism. 310(11). E1053–E1061. 100 indexed citations

12.

Peterli, Ralph, Bettina K. Wölnerhanssen, Diana Vetter, et al.. (2016). Laparoscopic Sleeve Gastrectomy Versus Roux-Y-Gastric Bypass for Morbid Obesity—3-Year Outcomes of the Prospective Randomized Swiss Multicenter Bypass Or Sleeve Study (SM-BOSS). Annals of Surgery. 265(3). 466–473. 168 indexed citations

13.

Lindinger, Peter W., Martine Christe, Alex N. Eberlé, et al.. (2015). Important mitochondrial proteins in human omental adipose tissue show reduced expression in obesity. Data in Brief. 4. 40–43. 5 indexed citations

14.

Peterli, Ralph, Bettina K. Wölnerhanssen, Thomas Peters, et al.. (2007). Prospective Study of a Two-Stage Operative Concept in the Treatment of Morbid Obesity: Primary Lap-Band® Followed if Needed by Sleeve Gastrectomy with Duodenal Switch. Obesity Surgery. 17(3). 334–340. 33 indexed citations

15.

Fueglistaler, Philipp, et al.. (2006). Long-Term Results After Stapled Hemorrhoidopexy: High Patient Satisfaction Despite Frequent Postoperative Symptoms. Diseases of the Colon & Rectum. 50(2). 204–212. 51 indexed citations

16.

Rosenthal, Rachel, et al.. (2006). Laparoscopic Antireflux Surgery: Long-Term Outcomes and Quality of Life. Journal of Laparoendoscopic & Advanced Surgical Techniques. 16(6). 557–561. 37 indexed citations

17.

Wölnerhanssen, Bettina K., Christoph Ackermann, Béatrice Kern, et al.. (2005). Zwölf Jahre laparoskopische Cholezystektomie: Ergebnisse einer prospektiven Studie von 4498 an einer Klinik durchgeführten Cholezystektomien. Chirurg. 76(3). 263–269. 1 indexed citations

18.

Wölnerhanssen, Bettina K., Béatrice Kern, Thomas Peters, et al.. (2005). Reduction in Slippage with 11-cm Lap-Band® and Change of Gastric Banding Technique. Obesity Surgery. 15(7). 1050–1054. 28 indexed citations

19.

Peterli, Ralph, et al.. (1999). Steigende Frequenz bariatrisch-chirurgischer Eingriffe seit Ersatz der Gastroplastik durch das laparoskopische Magenband zur Behandlung der morbiden Adipositas. Der Chirurg. 70(2). 190–195. 7 indexed citations

20.

Peterli, Ralph, Christoph Ackermann, & P Tondelli. (1996). Incarcerierte Zwerchfellhernie als Folge iatrogener Zwerchfelldefekte 2 Fallberichte. Der Chirurg. 67(10). 1050–1052. 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