Author

Keiichi Maruyama

Observed names: K Maruyama, K. MARUYAMA, K. Maruyama, KEIICHI MARUYAMA, Kei-ichi MARUYAMA, Keiichi MARUYAMA

Institutions: Sanno Medical Center, Sanno Hospital, National Cancer Center Hospital

Observed institutions: Keio University, Leiden University Medical Center, National Cancer Centre Japan, National Cancer Center, Keio University Hospital, National Cancer Center Hospital East, Sanno Medical Center, Sanno Hospital, National Cancer Center Hospital, Japanese Gastric Cancer Association, National Cancer Center Hospital, National Cancer Center Research Institute

OpenAlex ID: A5024708460

Progress in gastric cancer surgery in Japan and its limits of radicality

1987 · Keiichi Maruyama, Kenzo Okabayashi, et al. · World Journal of Surgery · 675

Lymph Node Metastases of Gastric Cancer

1989 · KEIICHI MARUYAMA, PETER GUNVÉN, et al. · Annals of Surgery · 450

New method to evaluate the therapeutic value of lymph node dissection for gastric cancer

1995 · M Sasako, P McCulloch, et al. · British journal of surgery · 437

Recurrence of early gastric cancer. Follow-up of 1475 patients and review of the Japanese literature

1993 · Takeshi Sano, Mitsuru Sasako, et al. · Cancer · 327

Gastric cancer treated in 1991 in Japan: data analysis of nationwide registry

2006 · Keiichi Maruyama, Michio Kaminishi, et al. · Gastric Cancer · 249

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Pancreas‐preserving total gastrectomy for proximal gastric cancer

1995 · Keiichi Maruyama, Mitsuru Sasako, et al. · World Journal of Surgery · 227

Hepatic resection for metastatic tumours from gastric cancer: Analysis of prognostic factors

1994 · T Ochiai, M Sasako, et al. · British journal of surgery · 155

Overexpression of c‐ erb B‐2 protein in gastric cancer. Its correlation with long‐term survival of patients

1993 · Shinya Uchino, Hitoshi Tsuda, et al. · Cancer · 131

Computer analysis in making preoperative decisions: A rational approach to lymph node dissection in gastric cancer patients

1989 · G H M Kampschöer, K Maruyama, et al. · British journal of surgery · 117

Immunohistochemically detected micrometastases of the lymph nodes in patients with gastric carcinoma

2001 · Takeo Fukagawa, Mitsuru Sasako, et al. · Cancer · 113

Comparison of factors influencing the prognosis of Japanese, German, and Dutch gastric cancer patients

1993 · J. J. Bonenkamp, C. J. H. van de Velde, et al. · World Journal of Surgery · 105

Preoperative assessment of lymph node metastases in patients with gastric cancer: evaluation of the Maruyama computer program

1992 · E Bollschweiler, K Boettcher, et al. · British journal of surgery · 104

Evaluation of the new international union against cancer TNM staging for gastric carcinoma

2000 · Hitoshi Katai, Kimio Yoshimura, et al. · Cancer · 103

Surgical treatment of carcinoma of the gastric stump

1991 · M Sasako, K Maruyama, et al. · British journal of surgery · 101

Can sentinel node biopsy indicate rational extent of lymphadenectomy in gastric cancer surgery?

1999 · K. Maruyama, Mitsuru Sasako, et al. · Langenbeck s Archives of Surgery · 100

The Outcome of Surgical Treatment for Gastric Carcinoma in the Elderly

1998 · H. Katai, M. Sasako, et al. · Japanese Journal of Clinical Oncology · 91

Artificial Neural Network for Prediction of Lymph Node Metastases in Gastric Cancer: A Phase II Diagnostic Study

2004 · Elfriede H. Bollschweiler, Stefan P. M�nig, et al. · Annals of Surgical Oncology · 76

Decreasing complication rates with stapled esophagojejunostomy following a learning curve

2000 · Sachiyo Nomura, Mitsuru Sasako, et al. · Gastric Cancer · 76

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The effects of blood transfusion on the prognosis of patients with gastric cancer

1989 · G. H. M. Kampschöer, K. Maruyama, et al. · World Journal of Surgery · 63

Amylase concentration of drainage fluid after total gastrectomy

1997 · T. Sano, M. Sasako, et al. · British journal of surgery · 57

Evaluation of the Maruyama Computer Program Accuracy for Preoperative Estimation of Lymph Node Metastases from Gastric Cancer

2000 · Stefano Guadagni, Giovanni de Manzoni, et al. · World Journal of Surgery · 54

Mode of Recurrence after Gastric Cancer Surgery

2008 · Hitoshi Katai, Keiichi Maruyama, et al. · Digestive Surgery · 51

Difference between Carcinoma of the Lower Esophagus and the Cardia

1996 · Yuji Tachimori, Hoichi Kato, et al. · World Journal of Surgery · 50

Should systematic lymph node dissection be recommended for gastric cancer? Pro:

1998 · K Maruyama, M Sasako, et al. · European Journal of Cancer · 49

Quality Control of Surgical Technique in a Multicenter, Prospective, Randomized, Controlled Study on the Surgical Treatment of Gastric Cancer

1992 · Mitsuru Sasako, Keiichi Maruyama, et al. · Japanese Journal of Clinical Oncology · 48

Works count: 102

Citation count: 4,740

H-index: 32

I10-index: 49