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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 103 7314 6872 177 169 763 42486

Kenichi Sugihara publications per year

The chart shows the history of publications by Kenichi Sugihara between 1976 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kenichi Sugihara published across 51 years, from 1976 to 2026, averaging 16.3 papers a year. Output peaked at 64 publications in 2014. 21 of the 830 publications appeared in the last two years.

No. of publications
20 40 60
Bar chart. Horizontal axis: year, 1976 to 2026. Vertical axis: number of publications, 0 to 64. Peak 64 publications in 2014. 1976: 1 publication 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 1 publication 1982: 2 publications 1983: 1 publication 1984: 4 publications 1985: 2 publications 1986: 0 publications 1987: 1 publication 1988: 2 publications 1989: 1 publication 1990: 2 publications 1991: 6 publications 1992: 1 publication 1993: 1 publication 1994: 4 publications 1995: 12 publications 1996: 8 publications 1997: 9 publications 1998: 12 publications 1999: 8 publications 2000: 23 publications 2001: 7 publications 2002: 13 publications 2003: 15 publications 2004: 20 publications 2005: 15 publications 2006: 22 publications 2007: 15 publications 2008: 22 publications 2009: 26 publications 2010: 35 publications 2011: 47 publications 2012: 61 publications 2013: 40 publications 2014: 64 publications 2015: 47 publications 2016: 44 publications 2017: 39 publications 2018: 19 publications 2019: 20 publications 2020: 26 publications 2021: 25 publications 2022: 30 publications 2023: 31 publications 2024: 25 publications 2025: 20 publications 2026: 1 publication
1976 2026

830 publications in total across all disciplines

View publications per year as a table
Kenichi Sugihara: publications per year, 1976 to 2026
Year Publications
1976 1
1977 0
1978 0
1979 0
1980 0
1981 1
1982 2
1983 1
1984 4
1985 2
1986 0
1987 1
1988 2
1989 1
1990 2
1991 6
1992 1
1993 1
1994 4
1995 12
1996 8
1997 9
1998 12
1999 8
2000 23
2001 7
2002 13
2003 15
2004 20
2005 15
2006 22
2007 15
2008 22
2009 26
2010 35
2011 47
2012 61
2013 40
2014 64
2015 47
2016 44
2017 39
2018 19
2019 20
2020 26
2021 25
2022 30
2023 31
2024 25
2025 20
2026 1
Total 830
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Kenichi Sugihara 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 Kenichi Sugihara 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, 761–780 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: 763 publications — 85th percentile

85% 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
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
761–780 228 763
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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Kenichi Sugihara 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 Kenichi Sugihara 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, 102–103 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: 103 D-Index — 65th percentile

65% 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
92–93 839
94–95 808
96–97 779
98–99 668
100–101 611
102–103 630 103
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

Kenichi Sugihara is affiliated with Tokyo Medical and Dental University in Japan. Their research primarily focuses on the field of Medicine, with a specialization in Oncology, Surgery, Pulmonary and Respiratory Medicine, Pathology and Forensic Medicine, and Epidemiology.

Their work covers several main topics, including:

  • Colorectal Cancer Surgical Treatments
  • Colorectal Cancer Treatments and Studies
  • Colorectal and Anal Carcinomas
  • Gastric Cancer Management and Outcomes
  • Genetic factors in colorectal cancer
  • Colorectal Cancer Screening and Detection
  • Intraperitoneal and Appendiceal Malignancies

Kenichi Sugihara has contributed to numerous publications, frequently collaborating with co-authors such as Soichiro Ishihara, Yoichi Ajioka, Michio Itabashi, Hideki Ueno, and Yukihide Kanemitsu.

The frequent venues for Sugihara's publications include:

  • Annals of Gastroenterological Surgery
  • International Journal of Clinical Oncology
  • Journal of the Anus Rectum and Colon
  • International Journal of Colorectal Disease
  • Journal of Gastroenterology

Among recent papers are:

  • Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2020 for the Clinical Practice of Hereditary Colorectal Cancer, 2021, International Journal of Clinical Oncology
  • Evidence-based clinical practice guidelines for management of colorectal polyps, 2021, Journal of Gastroenterology
  • Prognostic value of desmoplastic reaction characterisation in stage II colon cancer: prospective validation in a Phase 3 study (SACURA Trial), 2021, British Journal of Cancer
  • Nomogram as a novel predictive tool for lymph node metastasis in T1 colorectal cancer treated with endoscopic resection: a nationwide, multicenter study, 2023, Gastrointestinal Endoscopy
  • Prognostic impact of primary tumor location in Stage III colorectal cancer-right-sided colon versus left-sided colon versus rectum: a nationwide multicenter retrospective study, 2020, Journal of Gastroenterology

Best Publications

  • Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2010 for the treatment of colorectal cancer

    Toshiaki Watanabe;Michio Itabashi;Yasuhiro Shimada;Shinji Tanaka

  • A Multicenter Study on Oncologic Outcome of Laparoscopic Gastrectomy for Early Cancer in Japan

    Seigo Kitano;Norio Shiraishi;Ichiro Uyama;Kenichi Sugihara

  • Recommendations for reporting tumor budding in colorectal cancer based on the International Tumor Budding Consensus Conference (ITBCC) 2016.

    Alessandro Lugli;Richard Kirsch;Yoichi Ajioka;Fred Bosman

  • Japanese Society for Cancer of the Colon and Rectum (JSCCR) Guidelines 2014 for treatment of colorectal cancer

    Toshiaki Watanabe;Michio Itabashi;Yasuhiro Shimada;Shinji Tanaka

  • JGES guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection

    Shinji Tanaka;Hiroshi Kashida;Yutaka Saito;Naohisa Yahagi

  • A risk model for esophagectomy using data of 5354 patients included in a Japanese nationwide web-based database.

    Hiroya Takeuchi;Hiroaki Miyata;Mitsukazu Gotoh;Yuko Kitagawa

  • Indication and Benefit of Pelvic Sidewall Dissection for Rectal Cancer

    Kenichi Sugihara;Hirotoshi Kobayashi;Tomoyuki Kato;Takeo Mori

  • Understanding Optimal Colonic Cancer Surgery: Comparison of Japanese D3 Resection and European Complete Mesocolic Excision With Central Vascular Ligation

    Nicholas P. West;Hirotoshi Kobayashi;Keiichi Takahashi;Aristoteles Perrakis

  • Over- and under-expressed microRNAs in human colorectal cancer

    Kazuo Motoyama;Hiroshi Inoue;Yasushi Takatsuno;Yasushi Takatsuno;Fumiaki Tanaka

  • A pancreaticoduodenectomy risk model derived from 8575 cases from a national single-race population (Japanese) using a web-based data entry system: the 30-day and in-hospital mortality rates for pancreaticoduodenectomy.

    Wataru Kimura;Hiroaki Miyata;Mitsukazu Gotoh;Ichiro Hirai

  • Short-term Surgical Outcomes From a Randomized Controlled Trial to Evaluate Laparoscopic and Open D3 Dissection for Stage Ii/iii Colon Cancer: Japan Clinical Oncology Group Study Jcog 0404

    Seiichiro Yamamoto;Masafumi Inomata;Hiroshi Katayama;Junki Mizusawa

  • Size- and Invasion-dependent Increase in Cyclooxygenase 2 Levels in Human Colorectal Carcinomas

    Takeshi Fujita;Minoru Matsui;Kazuaki Takaku;Hiroyuki Uetake

  • Cyclooxygenase-2 Expression: A Significant Prognostic Indicator for Patients With Colorectal Cancer

    Labile Togba Soumaoro;Hiroyuki Uetake;Tetsuro Higuchi;Yoko Takagi

  • Local recurrence after endoscopic resection for large colorectal neoplasia: A multicenter prospective study in Japan

    Shiro Oka;Shinji Tanaka;Yutaka Saito;Hiroyasu Iishi

  • Pelvic autonomic nerve preservation for patients with rectal carcinoma. Oncologic and functional outcome

    Kenichi Sugihara;Yoshihiro Moriya;Takayuki Akasu;Shin Fujita

  • Characteristics of recurrence and surveillance tools after curative resection for colorectal cancer: a multicenter study.

    Hirotoshi Kobayashi;Hidetaka Mochizuki;Kenichi Sugihara;Takayuki Morita

  • Importance of extended lymphadenectomy with lateral node dissection for advanced lower rectal cancer.

    Yoshihiro Moriya;Kenichi Sugihara;Takayuki Akasu;Shin Fujita

  • Demographic and pathological characteristics of serrated polyps of colorectum.

    T Higuchi;K Sugihara;J R Jass

  • Clinical Significance of High Mobility Group A2 in Human Gastric Cancer and Its Relationship to let-7 MicroRNA Family

    Kazuo Motoyama;Hiroshi Inoue;Yoshito Nakamura;Hiroyuki Uetake

Frequent Co-Authors

Toshiaki Watanabe
Toshiaki Watanabe University of Tokyo
Masaki Mori
Masaki Mori Kyushu University
Hideo Baba
Hideo Baba Kumamoto University
Kei Muro
Kei Muro National Cancer Research Institute, UK
Hidetaka Mochizuki
Hidetaka Mochizuki National Defense Medical College
Satoshi Morita
Satoshi Morita Kyoto University
Narikazu Boku
Narikazu Boku St. Marianna University School of Medicine
Shinji Tanaka
Shinji Tanaka Hiroshima University
Yoshiharu Sakai
Yoshiharu Sakai Kyoto University
Yutaka Saito
Yutaka Saito Aoyama Gakuin University

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