H. Obertop

13.3k citations

151 papers · 10.0k indexed · 6 hit papers · h-index 40

Impact in

Gastroenterology top 0.1%
- Gastrointestinal Tumor Research and Treatment
Pulmonary and Respiratory Medicine top 0.1%
- Gastric Cancer Management and Outcomes
- Metastasis and carcinoma case studies
- Gallbladder and Bile Duct Disorders

Papers in

Transplantation 8
Surgery 126
- Esophageal and GI Pathology 33
- Esophageal Cancer Research and Treatment 27
- Pancreatitis Pathology and Treatment 23
- Organ Transplantation Techniques and Outcomes 16
- Cholangiocarcinoma and Gallbladder Cancer Studies 11

Co-authors: Dirk J. Gouma J. Jan B. van Lanschot Hugo W. Tilanus Thomas M. van Gulik Peter W. de Graaf Johanna W. van Sandick Olivier R. Busch Jan B.F. Hulscher
Journals: British journal of surgery (15 papers)Annals of Surgery (10 papers)Digestive Surgery (7 papers)Transplantation (7 papers)Annals of Oncology (6 papers)
Partner nations: Netherlands United States Germany

In The Last Decade

H. Obertop

150 papers receiving 9.7k citations

Hit Papers

6 papers align trajectories log scale

Extended Transthoracic Resection Compared With Limited Transhiatal Resection for Adenocarcinoma of the Mid/Distal Esophagus 2007 · 497 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2007 Annals of Surgery
2004 Journal of Clinical Oncology
2002 New England Journal of Medicine
2000 Annals of Surgery
1999 New England Journal of Medicine
1995 The Lancet

Peers

Countries citing papers authored by H. Obertop

Since Specialization

Citations

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

Fields of papers citing papers by H. Obertop

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside H. Obertop, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with H. Obertop Line = papers co-authored together H. Obertop links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Outcome of Patients with Esophageal Carcinoma and Suspicious Celiac Lymph Nodes as Determined by Endoscopic Ultrasonography Endoscopy ·Willem A. Marsman, Matthijs Van Wissen, Jacques Bergman, Lydia rer. nat. Friedrich, H. Obertop, G. N. J. Tytgat, Paul Fockens	2004	11
2	Surgical treatment of esophageal cancer - Reply (letter) New England Journal of Medicine ·J.J.B. van Lanschot, H.W. Tilanus, H. Obertop	2003	1
3	No survival benefit of extended transthoracic resection over limited transhiatal resection for adenocarcinoma of the mid/distal esophagus and gastric cardia: results of a randomized study. New England Journal of Medicine ·Jan B.F. Hulscher, Angela G. E. M. de Boer, Johanna W. van Sandick, Bas P. L. Wijnhoven, Jan G.P. Tijssen, Paul Fockens, Peep F. M. Stalmeier, Fiebo J. ten Kate, H. van Dekken, H. Obertop, H.W. Tilanus, Lydia rer. nat. Friedrich	2002	12
4	Diagnostic Laparoscopy and Laparoscopic Ultrasound for Staging of Patients With Malignant Proximal Bile Duct Obstruction Journal of Gastrointestinal Surgery ·Kleiss Th, S. M. M. de Castro, Olivier R. Busch, Willem A. Bemelman, Thomas M. van Gulik, H. Obertop, Dirk J. Gouma	2002	39
5	Complications in Surgery – Let’s Face Them Digestive Surgery ·H. Obertop, Dirk J. Gouma	2002	7
6	A Meta-analysis on the Efficacy of Preoperative Biliary Drainage for Tumors Causing Obstructive Jaundice Annals of Surgery ·Miguel E. Sewnath, Thomas M. Karsten, Martin H. Prins, E. Viles-Díez, H. Obertop, Dirk J. Gouma	2002	298
7	Segmental resection and wedge excision of the portal or superior mesenteric vein during pancreatoduodenectomy Surgery ·Rutger C. I. van Geenen, F.J.W. ten Kate, L T de Wit, Thomas M. van Gulik, H. Obertop, Dirk J. Gouma	2001	102
8	Rates of Complications and Death After Pancreaticoduodenectomy: Risk Factors and the Impact of Hospital Volume Annals of Surgery ·Dirk J. Gouma, Rutger C. I. van Geenen, Thomas M. van Gulik, Rob J. de Haan, L T de Wit, Olivier R. Busch, H. Obertop Hit paper breakdown →	2000	690
9	Long-Term Outcome of Endoscopic Stent Placement for Chronic Pancreatitis Associated with Pancreas Divisum Endoscopy ·D. Boerma, K. Huibregtse, T.M. van Gulik, E. A. J. Rauws, H. Obertop, D. J. Gouma	2000	33
10	A Free Peritoneal Patch Does Not Affect the Leakage Rate but Increases Stricture Formation of a Cervical Esophagogastrostomy Digestive Surgery ·Mateus Barbieri, J.J.B. van Lanschot, J. Oosting, H. Obertop	1999	7
11	Disturbed Enterogastric Inhibitory Reflex after Esophageal Resection and Narrow Gastric Tube Reconstruction Digestive Surgery ·Johanne Ouellet, J.J.J. Borm, J. Jan B. van Lanschot, M.M.C. Tiel-van Buul, L. M. A. Akkermans, H. Obertop	1999	5
12	Impact of endoscopic biopsy surveillance of Barrett’s oesophagus on pathological stage and clinical outcome of Barrett’s carcinoma Gut ·Johanna W. van Sandick, J. Jan B. van Lanschot, Y Zhang, G. N. J. Tytgat, G. J. A. Offerhaus, H. Obertop	1998	299
13	Intrahepatic Tissue pO<sub>2</sub> during Continuous or Intermittent Vascular Inflow Occlusion in a Pig Liver Resection Model European Surgical Research ·Bart A. van Wagensveld, Thomas M. van Gulik, SISTER AGNES REINKEMEYER, Gabriel Désert, H. Obertop, Dirk J. Gouma	1998	16
14	Warm flush at 37 °C following cold storage attenuates reperfusion injury in preserved rat livers Transplant International ·Bart A. van Wagensveld, Marcel E. Reinders, D. Trujillio, Huub C. Gelderblom, Wilma M. Frederiks, R. J. A. Wanders, H. Obertop	1998	6
15	NO ATTENUATION OF ISCHEMIC AND REPERFUSION INJURY IN KUPFFER CELL-DEPLETED, COLD-PRESERVED RAT LIVERS Transplantation ·Marcel E. Reinders, Bart A. van Wagensveld, Thomas M. van Gulik, De Chazeron, Wilma M. Frederiks, Janice Francisco, Nico van Rooijen, H. Obertop	1997	29
16	Alpha glutathione S-transferase as novel parameter for hepatocellular damage in the isolated perfused rat liver Transplantation Proceedings ·Bart A. van Wagensveld, Joris J. Scheepers, Thomas M. van Gulik, Wilma M. Frederiks, Wim K. Bleeker, H. Obertop, Dirk J. Gouma	1997	22
17	7 3-D reconstruction of hepatic neoplasms: a preoperative planning procedure Baillière s Clinical Gastroenterology ·Maarten S. van Leeuwen, H. Obertop, A. Hennipman, G Bösiger	1995	9
18	Adjuvant chemotherapy after resection of adenocarcinoma of the periampullary region and the head of the pancreas Journal of Cancer Research and Clinical Oncology ·T. A. W. Splinter, H. Obertop, T.C. Kok, Johannes Jeekel	1989	39
19	Needle catheter jejunostomy (NCJ) for early postoperative feeding: experience in 210 patients. PubMed ·M. Eeftinck Schattenkerk, H. Obertop, Hajo A. Bruining, Myeong-Sin Chae, 来娜姜	1983	7
20	Prolongation of renal allograft survival in DLA-tissue typed beagles after third-party leucocyte and erythrocyte transfusion. PubMed ·H. Obertop, 平述, Lukas Marek, 亮増田	1979	1

About H. Obertop

H. Obertop is a scholar working on Transplantation, Surgery, Pulmonary and Respiratory Medicine, Oncology and Gastroenterology, having authored 151 papers that have together received 10.0k indexed citations. Recurring topics across this work include Pancreatic and Hepatic Oncology Research (51 papers), Esophageal and GI Pathology (33 papers), Gallbladder and Bile Duct Disorders (31 papers), Gastric Cancer Management and Outcomes (29 papers), Esophageal Cancer Research and Treatment (27 papers), Pancreatitis Pathology and Treatment (23 papers), Organ Transplantation Techniques and Outcomes (16 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (11 papers). The work is most often cited by research in Gastroenterology (1.9k citations), Pulmonary and Respiratory Medicine (7.2k citations), Surgery (7.5k citations), Oncology (3.5k citations) and Hepatology (145 citations). H. Obertop has collaborated with scholars based in Netherlands, United States and Germany. Frequent co-authors include Dirk J. Gouma, J. Jan B. van Lanschot, Hugo W. Tilanus, Thomas M. van Gulik, Peter W. de Graaf, Johanna W. van Sandick, Olivier R. Busch, Jan B.F. Hulscher, C. W. Taat and L T de Wit. Their work appears in journals such as British journal of surgery, Annals of Surgery, Digestive Surgery, Transplantation and Annals of Oncology.

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