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Topic · Surgery

Gastrointestinal disorders and treatments

Gastrointestinal disorders and treatments is a research topic within Surgery. Science Explorer counts 49k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the diagnosis, treatment, and epidemiology of intussusception in both adults and children, with a specific emphasis on Meckel's diverticulum. It covers imaging manifestations, clinical characteristics, surgical approaches, and complications associated with these conditions.

  • Intussusception
  • Meckel's Diverticulum
  • Adults
  • Children
  • Diagnosis
  • Treatment
  • Imaging
  • Complications
  • Review
  • Epidemiology
Research works
49k
fractional, since 1950
In the world top 10%
4.9k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
-1%
the tick is no change
Largest producer
United States
32% of the 10 largest, 2022-now
Gastrointestinal disorders and treatments

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Gastrointestinal disorders and treatments research?

By volume, the United States and China publish the most (1.6k and 837 works in 2022-now).

By volume, 2022-now

  1. 1 United States 1.6k works
  2. 2 China 837 works
  3. 3 India 690 works
  4. 4 Japan 649 works
  5. 5 United Kingdom 278 works
  6. 6 Spain 268 works
  7. 7 Italy 234 works
  8. 8 Brazil 227 works
  9. 9 Türkiye 182 works
  10. 10 Germany 178 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

United States: 31.7%China: 16.1%India: 13.3%Japan: 12.5%6 others listed: 26.4%32%largest
United States1,643 · 31.7%China837 · 16.1%India690 · 13.3%Japan649 · 12.5%6 others listed1,367 · 26.4%

Shares of the rows listed above, not of the whole node.

Which institutions lead Gastrointestinal disorders and treatments research?

By volume in 2022-now, All India Institute of Medical Sciences publishes the most Gastrointestinal disorders and treatments research, followed by Mayo Clinic and Harvard University.

By volume, 2022-now

  1. 1 All India Institute of Medical SciencesIndia 56 works
  2. 2 Mayo ClinicUnited States 47 works
  3. 3 Harvard UniversityUnited States 39 works
  4. 4 Zhejiang UniversityChina 30 works
  5. 5 Cleveland ClinicUnited States 29 works
  6. 6 Sichuan UniversityChina 26 works
  7. 7 Sun Yat-sen UniversityChina 26 works
  8. 8 Mexican Social Security InstituteMexico 26 works
  9. 9 Post Graduate Institute of Medical Education and ResearchIndia 26 works
  10. 10 Capital Medical UniversityChina 24 works

Who are the leading researchers in Gastrointestinal disorders and treatments?

The most-cited researchers publishing on Gastrointestinal disorders and treatments include Hermann Brenner, Gordon Henry Guyatt and Reza Malekzadeh.

  1. 1 Hermann Brenner Germany 343k citations
  2. 2 Gordon Henry Guyatt Canada 315k citations
  3. 3 Reza Malekzadeh Iran 278k citations
  4. 4 Yousef Saleh Khader Jordan 274k citations
  5. 5 Patrick M. Bossuyt Netherlands 270k citations
  6. 6 Jean‐Louis Vincent Belgium 262k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Gastrointestinal disorders and treatments?

The most cited paper in Gastrointestinal disorders and treatments is "Classification and Grading of Gastritis" (Michael F. Dixon, Robert M. Genta, John H. Yardley et al., 1996), with 5,168 citations. Next come "Diagnosis of gastrointestinal stromal tumors: A consensus approach" (3,469) and "Wireless capsule endoscopy" (3,074).

Most cited papers
#PaperReleasedCitations
1 Classification and Grading of Gastritis Michael F. Dixon, Robert M. Genta, John H. Yardley et al. · The American Journal of Surgical Pathology Oct 1996 5,168
2 Diagnosis of gastrointestinal stromal tumors: A consensus approach Christopher D.�M. Fletcher, Jules J. Berman, Christopher L. Corless et al. · Human Pathology May 2002 3,469
3 Wireless capsule endoscopy Gavriel J. Iddan, Gavriel Meron, Arkady Glukhovsky et al. · Nature 25 May 2000 3,074
4 Management of Helicobacter pylori infection—the Maastricht V/Florence Consensus Report Peter Malfertheiner, Françis Mégraud, Colm A O'Morain et al. · Gut Open access 5 Oct 2016 2,970
5 A Clinically Based Classification System for Acute Pancreatitis Edward L. Bradley · Archives of Surgery May 1993 2,771
All 98 most cited papers, with filters and sorting

Where is Gastrointestinal disorders and treatments research done?

The largest centres of Gastrointestinal disorders and treatments research in 2022-now are Tokyo (Japan), Beijing (China), London (United Kingdom) and Mexico City (Mexico).

Largest cities, 2022-now

  1. 1 TokyoJapan 133 works
  2. 2 BeijingChina 90 works
  3. 3 LondonUnited Kingdom 73 works
  4. 4 Mexico CityMexico 72 works
  5. 5 SeoulSouth Korea 72 works
  6. 6 New YorkUnited States 71 works
  7. 7 New DelhiIndia 69 works
  8. 8 ShanghaiChina 61 works
  9. 9 MoscowRussia 60 works
  10. 10 São PauloBrazil 60 works
See Gastrointestinal disorders and treatments on the map

Where is the best place to study Gastrointestinal disorders and treatments?

Among universities, judged by research, Harvard University, Capital Medical University and Tel Aviv University score highest, combining citation excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%30%mean 20.07%fractional works in this field (log) →share of work in the world top 10% →China Medical Univer…Tel Aviv UniversityHarvard UniversityCapital Medical Univ…
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Citation excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Harvard UniversityUnited States 75.223.5%1.8×39 -22.4%
2Capital Medical UniversityChina 64.422.7%3.3×24 +88.9%
3Tel Aviv UniversityIsrael 63.924.6%2.8×15 +42.3%
4China Medical UniversityChina 61.824.9%5.5×16 +42.6%
5Zhejiang UniversityChina 60.715.2%1.6×30 +11.3%
6Sun Yat-sen UniversityChina 60.016.6%1.9×26 +28.3%
7Yale UniversityUnited States 59.525.1%2.3×17 +16.7%
8All India Institute of Medical SciencesIndia 58.26.1%7.5×56 +39.6%
9Fudan UniversityChina 58.222.6%1.4×15 +14.2%
10Università Cattolica del Sacro CuoreItaly 57.019.4%5.2×15 +9.2%

Universities only. The score blends citation excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Gastrointestinal disorders and treatments, country by country

Is Gastrointestinal disorders and treatments research growing?

Output in 2022-2025 was 1% lower than in 2018-2021, peaking in 2021.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Gastrointestinal disorders and treatments as a percentage of every work published that year, 0.037% in 2024.

still counting0.025%0.050%0.075%Gastrointestinal disorders and treatments0.030% in 202519801990200020102020

Fractional works of Gastrointestinal disorders and treatments over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Gastrointestinal disorders and treatments10.0% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

Discussion

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