Patrick Hemmer

2.0k total citations
52 papers, 764 citations indexed

About

Patrick Hemmer is a scholar working on Surgery, Emergency Medicine and Reproductive Medicine. According to data from OpenAlex, Patrick Hemmer has authored 52 papers receiving a total of 764 indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Surgery, 20 papers in Emergency Medicine and 9 papers in Reproductive Medicine. Recurrent topics in Patrick Hemmer's work include Intraperitoneal and Appendiceal Malignancies (29 papers), Appendicitis Diagnosis and Management (19 papers) and Hernia repair and management (12 papers). Patrick Hemmer is often cited by papers focused on Intraperitoneal and Appendiceal Malignancies (29 papers), Appendicitis Diagnosis and Management (19 papers) and Hernia repair and management (12 papers). Patrick Hemmer collaborates with scholars based in Netherlands, Germany and United States. Patrick Hemmer's co-authors include Schelto Kruijff, Mark Steyvers, Lukas B. Been, Robert J. van Ginkel, Gooitzen M. van Dam, Barbara L. van Leeuwen, Marjory Koller, Steven J. de Jongh, Boudewijn van Etten and Annelies Jorritsma‐Smit and has published in prestigious journals such as Journal of Clinical Oncology, Gut and Annals of Oncology.

In The Last Decade

Patrick Hemmer

48 papers receiving 752 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Patrick Hemmer Netherlands	16	462	193	132	128	125	52	764
Antonina Bergman Sweden	12	338 0.7×	95 0.5×	59 0.4×	32 0.3×	434 3.5×	28	976
Masato Yoshikawa Japan	18	271 0.6×	22 0.1×	180 1.4×	109 0.9×	8 0.1×	78	890
Stefano Gidaro Italy	18	473 1.0×	16 0.1×	111 0.8×	138 1.1×	33 0.3×	35	697
Scott I. Reznik United States	18	381 0.8×	11 0.1×	206 1.6×	30 0.2×	10 0.1×	41	876
Renato Patrone Italy	15	369 0.8×	4 0.0×	144 1.1×	72 0.6×	25 0.2×	50	839
Yong Sung Won South Korea	13	188 0.4×	26 0.1×	69 0.5×	35 0.3×	51 0.4×	34	413
Yves Van Belle Belgium	20	209 0.5×	10 0.1×	55 0.4×	86 0.7×	243 1.9×	41	1.4k
Orith Portnoy Israel	16	351 0.8×	64 0.3×	123 0.9×	62 0.5×	11 0.1×	54	724
Anurag Sahu United States	15	398 0.9×	37 0.2×	71 0.5×	104 0.8×	12 0.1×	59	750
PJ Drew United Kingdom	16	383 0.8×	24 0.1×	262 2.0×	33 0.3×	23 0.2×	34	925

Countries citing papers authored by Patrick Hemmer

Since Specialization

Citations

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

Fields of papers citing papers by Patrick Hemmer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Patrick Hemmer

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

All Works

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20 of 20 papers shown

Erning, Felice N. van, Patrick Hemmer, Eva V. E. Madsen, et al.. (2025). Recurrence patterns following CRS-HIPEC in patients with colorectal peritoneal metastases: Insights from the Dutch CRS-HIPEC registry. European Journal of Surgical Oncology. 51(12). 110501–110501.

Kats‐Ugurlu, Gürsah, Thomas C. Kwee, Patrick Hemmer, et al.. (2025). Feasibility of optical stereotactic navigation for rectosigmoid cancer with deep learning-supported 3D modelling. European Journal of Surgical Oncology. 51(11). 110397–110397.

Hannink, Gerjon, Alexandra R. M. Brandt‐Kerkhof, Cornelis Verhoef, et al.. (2024). Development of a prediction model for recurrence in patients with colorectal peritoneal metastases undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy. European Journal of Surgical Oncology. 50(6). 108294–108294. 1 indexed citations

Sijtsma, F.P.C., Alexandra R. M. Brandt‐Kerkhof, André J. A. Bremers, et al.. (2024). An observational cohort of patients with colorectal peritoneal metastases or pseudomyxoma peritonei treated with CRS-HIPEC: Development and first results of the Dutch CRS-HIPEC quality registry. European Journal of Surgical Oncology. 50(12). 108568–108568. 1 indexed citations

Hemmer, Patrick, et al.. (2023). Learning to Defer with Limited Expert Predictions. Proceedings of the AAAI Conference on Artificial Intelligence. 37(5). 6002–6011. 2 indexed citations

Dijkstra, Pieter J., Patrick Hemmer, Boudewijn van Etten, et al.. (2021). Reorganizing the Multidisciplinary Team Meetings in a Tertiary Centre for Gastro-Intestinal Oncology Adds Value to the Internal and Regional Care Pathways. A Mixed Method Evaluation. International Journal of Integrated Care. 21(1). 8–8. 2 indexed citations

Plas, Willemijn Y. van der, André J. A. Bremers, Patrick Hemmer, et al.. (2020). Effect of intraperitoneal chemotherapy concentration on morbidity and survival. BJS Open. 4(2). 293–300. 10 indexed citations

Bakkers, Checca, Koen P. Rovers, Simon W. Nienhuijs, et al.. (2020). SO-29 Long-term survival after hyperthermic intraperitoneal chemotherapy using mitomycin C or oxaliplatin in colorectal cancer patients with synchronous peritoneal metastases: A nationwide comparative study. Annals of Oncology. 31. S228–S228. 1 indexed citations

Rovers, Koen P., Checca Bakkers, Simon W. Nienhuijs, et al.. (2020). LBA-6 Safety, feasibility, tolerability, and preliminary efficacy of perioperative systemic therapy for resectable colorectal peritoneal metastases: Pilot phase of a randomised trial (CAIRO6). Annals of Oncology. 31. S243–S243. 1 indexed citations

10.

Bakkers, Checca, Felice N. van Erning, Koen P. Rovers, et al.. (2020). Long-term survival after hyperthermic intraperitoneal chemotherapy using mitomycin C or oxaliplatin in colorectal cancer patients with synchronous peritoneal metastases: A nationwide comparative study. European Journal of Surgical Oncology. 46(10). 1902–1907. 25 indexed citations

11.

Tjalma, Jolien J., Marjory Koller, Matthijs D. Linssen, et al.. (2019). Quantitative fluorescence endoscopy: an innovative endoscopy approach to evaluate neoadjuvant treatment response in locally advanced rectal cancer. Gut. 69(3). 406–410. 45 indexed citations

12.

Jongh, Steven J. de, Jolien J. Tjalma, Marjory Koller, et al.. (2019). Back-Table Fluorescence-Guided Imaging for Circumferential Resection Margin Evaluation Using Bevacizumab-800CW in Patients with Locally Advanced Rectal Cancer. Journal of Nuclear Medicine. 61(5). 655–661. 44 indexed citations

13.

Bastiaenen, Vivian P., Charlotte E.L. Klaver, Niels F. M. Kok, et al.. (2019). Second and third look laparoscopy in pT4 colon cancer patients for early detection of peritoneal metastases; the COLOPEC 2 randomized multicentre trial. BMC Cancer. 19(1). 254–254. 20 indexed citations

14.

Rovers, Koen P., Geert A. Simkens, Pauline A. J. Vissers, et al.. (2017). Survival of patients with colorectal peritoneal metastases is affected by treatment disparities among hospitals of diagnosis: A nationwide population-based study. European Journal of Cancer. 75. 132–140. 14 indexed citations

15.

Etten, Boudewijn van, et al.. (2016). Fasciocutaneous Lotus Petal Flap for Perineal Wound Reconstruction after Extralevator Abdominoperineal Excision: Application for Reconstruction of the Pelvic Floor and Creation of a Neovagina. Annals of Surgical Oncology. 23(12). 4073–4079. 17 indexed citations

16.

Harlaar, Niels J., Marjory Koller, Steven J. de Jongh, et al.. (2016). Molecular fluorescence-guided surgery of peritoneal carcinomatosis of colorectal origin: a single-centre feasibility study. The Lancet. Gastroenterology & hepatology. 1(4). 283–290. 145 indexed citations

17.

Hemmer, Patrick, Boudewijn van Etten, Jean-Pierre E. N. Pierie, et al.. (2011). Results of Surgery for Perforated Gastroduodenal Ulcers in a Dutch Population. Digestive Surgery. 28(5-6). 360–366. 14 indexed citations

18.

Hemmer, Patrick & Mark Steyvers. (2009). Integrating episodic memories and prior knowledge at multiple levels of abstraction. Psychonomic Bulletin & Review. 16(1). 80–87. 53 indexed citations

19.

Hemmer, Patrick. (2004). Image of the Month—Quiz Case. Archives of Surgery. 139(2). 223–223. 2 indexed citations

20.

Hemmer, Patrick, et al.. (2003). The continued utility of needle localised biopsy for non-palpable breast lesions. European Journal of Surgical Oncology. 30(1). 10–14. 2 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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