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Topic · Pulmonary and Respiratory Medicine

Biliary and Gastrointestinal Fistulas

Biliary and Gastrointestinal Fistulas is a research topic within Pulmonary and Respiratory Medicine. Science Explorer counts 17k research works in it since 1950. 10.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the complications and management of gallstone disease, including rare conditions such as Bouveret's Syndrome, cholecystocholedochal fistula, and gallstone ileus. The papers discuss various diagnostic techniques, surgical and endoscopic management strategies, as well as the clinical presentation and outcomes of these complications.

  • Gallstone Ileus
  • Bouveret's Syndrome
  • Cholecystocholedochal Fistula
  • Gastrointestinal Fistulas
  • CT Diagnosis
  • Surgical Management
  • Endoscopic Therapy
  • Duodenal Obstruction
  • Radiological Findings
  • Laparoscopic Treatment
Research works
17k
fractional, since 1950
In the world top 10%
1.7k
per year above
Top-10% rate
10.2%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+8%
the tick is no change
Largest producer
United States
33% of the 10 largest, 2022-now
Biliary and Gastrointestinal Fistulas

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

Which countries lead Biliary and Gastrointestinal Fistulas research?

By volume, the United States and India publish the most (587 and 234 works in 2022-now).

By volume, 2022-now

  1. 1 United States 587 works
  2. 2 India 234 works
  3. 3 China 231 works
  4. 4 Japan 194 works
  5. 5 United Kingdom 135 works
  6. 6 Spain 111 works
  7. 7 Brazil 82 works
  8. 8 Italy 81 works
  9. 9 Mexico 72 works
  10. 10 Germany 70 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: 32.7%India: 13.0%China: 12.9%Japan: 10.8%6 others listed: 30.7%33%largest
United States587 · 32.7%India234 · 13.0%China231 · 12.9%Japan194 · 10.8%6 others listed551 · 30.7%

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

Which institutions lead Biliary and Gastrointestinal Fistulas research?

By volume in 2022-now, All India Institute of Medical Sciences publishes the most Biliary and Gastrointestinal Fistulas research, followed by Cleveland Clinic and Mexican Social Security Institute.

By volume, 2022-now

  1. 1 All India Institute of Medical SciencesIndia 16 works
  2. 2 Cleveland ClinicUnited States 16 works
  3. 3 Mexican Social Security InstituteMexico 16 works
  4. 4 Mayo ClinicUnited States 16 works
  5. 5 Post Graduate Institute of Medical Education and ResearchIndia 11 works
  6. 6 Mohammed V UniversityMorocco 9 works
  7. 7 Harvard UniversityUnited States 9 works
  8. 8 The University of SydneyAustralia 8 works
  9. 9 Universidade de São PauloBrazil 8 works
  10. 10 Northwell HealthUnited States 8 works

Who are the leading researchers in Biliary and Gastrointestinal Fistulas?

The most-cited researchers publishing on Biliary and Gastrointestinal Fistulas include Dan J. Stein, Reza Malekzadeh and Carlo La Vecchia.

  1. 1 Dan J. Stein South Africa 306k citations
  2. 2 Reza Malekzadeh Iran 278k citations
  3. 3 Carlo La Vecchia Italy 258k citations
  4. 4 Scott M. Grundy United States 257k citations
  5. 5 Edward L. Giovannucci United States 219k citations
  6. 6 Rinaldo Bellomo Australia 182k 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 Biliary and Gastrointestinal Fistulas?

The most cited paper in Biliary and Gastrointestinal Fistulas is "UNIDENTIFIED CURVED BACILLI ON GASTRIC EPITHELIUM IN ACTIVE CHRONIC GASTRITIS" (J R Warren, 1983), with 3,626 citations. Next come "Endoscopic sphincterotomy complications and their management: an attempt at consensus" (2,873) and "Epidemiology of Gallbladder Disease: Cholelithiasis and Cancer" (1,396).

Most cited papers
#PaperReleasedCitations
1 UNIDENTIFIED CURVED BACILLI ON GASTRIC EPITHELIUM IN ACTIVE CHRONIC GASTRITIS J R Warren · The Lancet Jun 1983 3,626
2 Endoscopic sphincterotomy complications and their management: an attempt at consensus Peter B. Cotton, Glen A. Lehman, Jack A. Vennes et al. · Gastrointestinal Endoscopy May 1991 2,873
3 Epidemiology of Gallbladder Disease: Cholelithiasis and Cancer Laura M. Stinton, Eldon A. Shaffer · Gut and Liver Open access 15 Apr 2012 1,396
4 Primary Peptic Ulcerations of the Jejunum Associated with Islet Cell Tumors of the Pancreas Robert M. Zollinger, Edwin H. Ellison · Annals of Surgery Open access Oct 1955 1,336
5 Amoebiasis Samuel L. Stanley · The Lancet Mar 2003 1,161
All 100 most cited papers, with filters and sorting

Where is Biliary and Gastrointestinal Fistulas research done?

The largest centres of Biliary and Gastrointestinal Fistulas research in 2022-now are Tokyo (Japan), Mexico City (Mexico), London (United Kingdom) and New Delhi (India).

Largest cities, 2022-now

  1. 1 TokyoJapan 38 works
  2. 2 Mexico CityMexico 29 works
  3. 3 LondonUnited Kingdom 26 works
  4. 4 New DelhiIndia 23 works
  5. 5 São PauloBrazil 22 works
  6. 6 MadridSpain 22 works
  7. 7 New YorkUnited States 21 works
  8. 8 SeoulSouth Korea 21 works
  9. 9 BeijingChina 19 works
  10. 10 ClevelandUnited States 19 works
See Biliary and Gastrointestinal Fistulas on the map

Where is the best place to study Biliary and Gastrointestinal Fistulas?

Among universities, judged by research, All India Institute of Medical Sciences, Harvard University and Post Graduate Institute of Medical Education and Research score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 13.76%fractional works in this field (log) →share of work in the world top 10% →Harvard UniversityThe University of Sy…All India Institute …Post Graduate Instit…
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.

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
1All India Institute of Medical SciencesIndia 53.09.3%6.2×16 +2.0%
2Harvard UniversityUnited States 52.533.8%1.2×9 -41.7%
3Post Graduate Institute of Medical Education and ResearchIndia 45.38.6%15.0×11 +27.1%
4The University of SydneyAustralia 35.816.2%2.8×8 +1.1%
5Mohammed V UniversityMorocco 31.20.9%10.5×10 +78.2%

Universities only. The score blends 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 Biliary and Gastrointestinal Fistulas, country by country

Is Biliary and Gastrointestinal Fistulas research growing?

Output in 2022-2025 was 8% higher than in 2018-2021, peaking in 2024. The fastest-growing topics are Biliary and Gastrointestinal Fistulas.

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 Biliary and Gastrointestinal Fistulas as a percentage of every work published that year, 0.013% in 2024.

still counting0.020%0.040%Biliary and Gastrointestinal Fistulas0.011% in 202519801990200020102020

Fractional works of Biliary and Gastrointestinal Fistulas 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%Biliary and Gastrointestinal Fistulas10.3% 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.

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