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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 90 12162 11441 135 124 417 31544

Ari Leppäniemi publications per year

The chart shows the history of publications by Ari Leppäniemi between 1987 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ari Leppäniemi published across 40 years, from 1987 to 2026, averaging 11.9 papers a year. Output peaked at 30 publications in 2020. 12 of the 475 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1987 to 2026. Vertical axis: number of publications, 0 to 30. Peak 30 publications in 2020. 1987: 1 publication 1988: 2 publications 1989: 1 publication 1990: 0 publications 1991: 3 publications 1992: 0 publications 1993: 1 publication 1994: 2 publications 1995: 4 publications 1996: 6 publications 1997: 5 publications 1998: 9 publications 1999: 7 publications 2000: 5 publications 2001: 7 publications 2002: 7 publications 2003: 8 publications 2004: 10 publications 2005: 18 publications 2006: 14 publications 2007: 14 publications 2008: 14 publications 2009: 8 publications 2010: 14 publications 2011: 24 publications 2012: 12 publications 2013: 23 publications 2014: 20 publications 2015: 23 publications 2016: 19 publications 2017: 28 publications 2018: 25 publications 2019: 16 publications 2020: 30 publications 2021: 25 publications 2022: 28 publications 2023: 23 publications 2024: 7 publications 2025: 9 publications 2026: 3 publications
1987 2026

475 publications in total across all disciplines

View publications per year as a table
Ari Leppäniemi: publications per year, 1987 to 2026
Year Publications
1987 1
1988 2
1989 1
1990 0
1991 3
1992 0
1993 1
1994 2
1995 4
1996 6
1997 5
1998 9
1999 7
2000 5
2001 7
2002 7
2003 8
2004 10
2005 18
2006 14
2007 14
2008 14
2009 8
2010 14
2011 24
2012 12
2013 23
2014 20
2015 23
2016 19
2017 28
2018 25
2019 16
2020 30
2021 25
2022 28
2023 23
2024 7
2025 9
2026 3
Total 475
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Ari Leppäniemi publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Ari Leppäniemi sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 86 bars. Horizontal axis: publications, 101–120 to 1,796+. Vertical axis: number of scientists, 0 to 922. Most scientists, 922, have 341–360 publications. The last bar groups every scientist with 1,796 publications or more. The highlighted bar, 401–420 publications, is where this scientist sits. 101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101–120 publications 1,796+

This scientist: 417 publications — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

View publications distribution as a table
Number of Medicine scientists by publication count, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
Publications Scientists This scientist
101–120 5
121–140 26
141–160 73
161–180 155
181–200 230
201–220 363
221–240 487
241–260 545
261–280 722
281–300 768
301–320 834
321–340 895
341–360 922
361–380 838
381–400 861
401–420 918 417
421–440 806
441–460 771
461–480 751
481–500 713
501–520 617
521–540 610
541–560 537
561–580 504
581–600 509
601–620 396
621–640 386
641–660 371
661–680 340
681–700 336
701–720 307
721–740 259
741–760 230
761–780 228
781–800 217
801–820 204
821–840 186
841–860 177
861–880 155
881–900 139
901–920 145
921–940 116
941–960 133
961–980 91
981–1,000 96
1,001–1,020 77
1,021–1,040 70
1,041–1,060 63
1,061–1,080 77
1,081–1,100 49
1,101–1,120 54
1,121–1,140 49
1,141–1,160 51
1,161–1,180 35
1,181–1,200 39
1,201–1,220 26
1,221–1,240 37
1,241–1,260 36
1,261–1,280 27
1,281–1,300 32
1,301–1,320 28
1,321–1,340 17
1,341–1,360 30
1,361–1,380 28
1,381–1,400 17
1,401–1,420 21
1,421–1,440 15
1,441–1,460 12
1,461–1,480 12
1,481–1,500 18
1,501–1,520 14
1,521–1,540 17
1,541–1,560 15
1,561–1,580 6
1,581–1,600 2
1,601–1,620 12
1,621–1,640 11
1,641–1,660 8
1,661–1,680 5
1,681–1,700 5
1,701–1,720 10
1,721–1,740 12
1,741–1,760 14
1,761–1,780 6
1,781–1,795 5
1,796+ 100
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Ari Leppäniemi D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Ari Leppäniemi sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 75 bars. Horizontal axis: D-Index, 70–71 to 217+. Vertical axis: number of scientists, 0 to 1,027. Most scientists, 1,027, have 82–83 D-Index. The last bar groups every scientist with 217 D-Index or more. The highlighted bar, 90–91 D-Index, is where this scientist sits. 70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70–71 D-Index 217+

This scientist: 90 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

View D-Index distribution as a table
Number of Medicine scientists by D-index, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
D-Index Scientists This scientist
70–71 226
72–73 391
74–75 574
76–77 730
78–79 891
80–81 972
82–83 1,027
84–85 1,003
86–87 960
88–89 970
90–91 922 90
92–93 839
94–95 808
96–97 779
98–99 668
100–101 611
102–103 630
104–105 513
106–107 541
108–109 445
110–111 429
112–113 399
114–115 393
116–117 318
118–119 302
120–121 287
122–123 255
124–125 256
126–127 252
128–129 230
130–131 179
132–133 168
134–135 163
136–137 159
138–139 134
140–141 134
142–143 118
144–145 109
146–147 106
148–149 74
150–151 79
152–153 80
154–155 87
156–157 57
158–159 74
160–161 69
162–163 60
164–165 53
166–167 39
168–169 42
170–171 32
172–173 39
174–175 40
176–177 28
178–179 19
180–181 23
182–183 31
184–185 18
186–187 20
188–189 22
190–191 13
192–193 21
194–195 12
196–197 12
198–199 14
200–201 15
202–203 13
204–205 10
206–207 8
208–209 4
210–211 12
212–213 11
214–215 10
216 4
217+ 98
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Overview

Ari Leppäniemi is affiliated with the University of Helsinki in Finland and has a significant presence in the field of medicine, with a particular focus on surgery and emergency medical care. Their research contributions span a variety of subfields including surgery, emergency medicine, pulmonary and respiratory medicine, cardiology and cardiovascular medicine, and oncology.

The scientist's recent publications demonstrate a focus on acute surgical conditions and emergency care guidelines. Key papers include:

  • "Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines" (2020, World Journal of Emergency Surgery)
  • "2020 World Society of Emergency Surgery updated guidelines for the diagnosis and treatment of acute calculus cholecystitis" (2020, World Journal of Emergency Surgery)
  • "2020 update of the WSES guidelines for the management of acute colonic diverticulitis in the emergency setting" (2020, World Journal of Emergency Surgery)
  • "Perforated and bleeding peptic ulcer: WSES guidelines" (2020, World Journal of Emergency Surgery)
  • "Liver trauma: WSES 2020 guidelines" (2020, World Journal of Emergency Surgery)

Frequent collaborators include:

  • Salomone Di Saverio
  • Massimo Sartelli
  • Federico Coccolini
  • Luca Ansaloni
  • Belinda De Simone

The primary venues for their published work are:

  • World Journal of Emergency Surgery
  • The Journal of Trauma: Injury, Infection, and Critical Care
  • British Journal of Surgery
  • BJS Open
  • Research Square (Research Square)

The main fields of study for Ari Leppäniemi are within Medicine, supported by numerous publications particularly focused on surgery (134 publications), emergency medicine (67 publications), pulmonary and respiratory medicine (38 publications), cardiology and cardiovascular medicine (24 publications), and oncology (19 publications).

The detailed research topics covered by their work include:

  • Appendicitis Diagnosis and Management
  • Cardiac, Anesthesia and Surgical Outcomes
  • Abdominal Surgery and Complications
  • Diverticular Disease and Complications
  • Trauma and Emergency Care Studies
  • Pancreatitis Pathology and Treatment
  • Intraperitoneal and Appendiceal Malignancies

Best Publications

  • Results from the International Conference of Experts on Intra-abdominal Hypertension and Abdominal Compartment Syndrome. II. Recommendations.

    Manu L. N. G Malbrain;Michael L Cheatham;Andrew Kirkpatrick;Michael Sugrue

  • Intra-abdominal hypertension and the abdominal compartment syndrome: updated consensus definitions and clinical practice guidelines from the World Society of the Abdominal Compartment Syndrome

    Andrew W Kirkpatrick;Derek J Roberts;Jan De Waele;Roman Jaeschke

  • Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines

    Salomone Di Saverio;Salomone Di Saverio;Mauro Podda;Belinda De Simone;Marco Ceresoli

  • 2019 WSES guidelines for the management of severe acute pancreatitis

    Ari Leppäniemi;Matti Tolonen;Antonio Tarasconi;Helmut Segovia-Lohse

  • A profile of combat injury.

    Howard R. Champion;Ronald F. Bellamy;Colonel P. Roberts;Ari Leppaniemi

  • Acute mesenteric ischemia: guidelines of the World Society of Emergency Surgery

    Miklosh Bala;Jeffry Kashuk;Ernest E. Moore;Yoram Kluger

  • Wses Jerusalem Guidelines For Diagnosis And Treatment Of Acute Appendicitis

    Salomone Di Saverio;Arianna Birindelli;Micheal D. Kelly;Fausto Catena

  • The management of intra-abdominal infections from a global perspective: 2017 WSES guidelines for management of intra-abdominal infections

    Massimo Sartelli;Alain Chichom-Mefire;Francesco M. Labricciosa;Timothy Hardcastle

  • 2016 WSES guidelines on acute calculous cholecystitis

    L. Ansaloni;M. Pisano;F. Coccolini;A.B. Peitzmann

  • Bologna guidelines for diagnosis and management of adhesive small bowel obstruction (ASBO): 2017 update of the evidence-based guidelines from the world society of emergency surgery ASBO working group

    Richard P. G. ten Broek;Pepijn Krielen;Salomone Di Saverio;Federico Coccolini

  • Pelvic trauma: WSES classification and guidelines

    Federico Coccolini;Philip F. Stahel;Giulia Montori;Walter Biffl

  • 2013 WSES guidelines for management of intra-abdominal infections

    Massimo Sartelli;Pierluigi Viale;Fausto Catena;Luca Ansaloni

  • Splenic trauma: WSES classification and guidelines for adult and pediatric patients

    Federico Coccolini;Giulia Montori;Fausto Catena;Yoram Kluger

  • Results of the CONTROL trial: efficacy and safety of recombinant activated Factor VII in the management of refractory traumatic hemorrhage.

    Carl J. Hauser;Kenneth Boffard;Richard Dutton;Gordon R. Bernard

  • Complicated intra-abdominal infections worldwide: the definitive data of the CIAOW Study

    Massimo Sartelli;Fausto Catena;Luca Ansaloni;Federico Coccolini

  • 2017 WSES guidelines on colon and rectal cancer emergencies: obstruction and perforation

    Michele Pisano;Luigi Zorcolo;Cecilia Merli;Stefania Cimbanassi

  • The open abdomen in trauma and non-trauma patients: WSES guidelines

    Federico Coccolini;Derek Roberts;Luca Ansaloni;Rao Ivatury

  • Bologna guidelines for diagnosis and management

    Salomone Di Saverio;Federico Coccolini;Marica Galati;Nazareno Smerieri

Frequent Co-Authors

Fausto Catena
Fausto Catena Ospedale “M. Bufalini” di Cesena
Massimo Sartelli
Massimo Sartelli University of Macerata
Luca Ansaloni
Luca Ansaloni University of Pavia
Ernest E. Moore
Ernest E. Moore University of Colorado Denver
Salomone Di Saverio
Salomone Di Saverio University of Insubria
Raul Coimbra
Raul Coimbra Riverside University Health System - Medical Center
Walter L. Biffl
Walter L. Biffl University of California, Irvine
Andrew W. Kirkpatrick
Andrew W. Kirkpatrick University of Calgary
George C. Velmahos
George C. Velmahos Harvard University
Andrew B. Peitzman
Andrew B. Peitzman University of Pittsburgh

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