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Vascular Surgery

The Department of Vascular Surgery deals with non-cardiac diseases associated with arteries, veins, and lymph vessels in the neck, chest, abdomen, and upper and lower limbs.

Medical services

Vascular surgery outpatient services are provided from Monday to Friday by a team made up of one associate professor, one lecturer, four assistant professors, and 10 graduate students. Three prescheduled surgeries are performed weekly and emergent surgeries are performed whenever required. Vascular imaging and function examinations are performed four times each week.

Diagnosis and treatment policy

In the first consultation, a non-invasive vascular function examination is performed. Based on the results of this examination and the systemic condition of the patient, a treatment strategy is developed. Many patients receiving treatment at the department are the elderly, for whom improvement in quality of life is taken into consideration.


Patients with a wide range of vascular disease from around the country, including arterial diseases such as abdominal aortic aneurysm and arterial occlusive disease, venous diseases such as lower extremity varicose veins and deep venous thrombosis, and lymphatic vessel diseases, visit our department for treatment. Our department plays a leading role in Japan particularly in the diagnosis and treatment of critical limb ischemia. We also frequently perform minimally invasive treatments such as stent grafting for abdominal aortic aneurysm and endovascular treatment for arterial occlusion. As one of the most highly respected vascular surgery departments in Japan, our surgeons have always led vascular surgery practice in the nation. The most accurate diagnoses, the most effective treatments, the large number of surgeries performed, and our physicians’ abundant experience in this field are a source of great pride in the department.

Target diseases

Thoracoabdominal aortic aneurysm, abdominal aortic aneurysm, other aortic aneurysms, arteriosclerosis obliterans (ASO), Buerger’s disease, aortitis syndrome, carotid artery stenosis, Raynaud’s disease, traumatic arterial occlusion, acute arterial occlusion, internal shunt failure in dialysis patients, lower extremity varicose vein, deep venous thrombosis, angioma, arteriovenous malformation, lymphatic edema, etc.

Advanced treatments/ Specialized treatments

Stent grafting

Minimally invasive treatments are provided for patients with abdominal aortic aneurysm.

  • Percutaneous angioplasty is an intravascular treatment for arterial stenosis which can be performed under local anesthesia
  • Bypass surgery for lower leg and foot arteries in patients with critical limb ischemia, alleviating the need for lower limb amputation
  • Laser treatment for varicose vein of lower extremities

Frequently performed tests


Vascular imaging examinations, vascular physiological examinations, vascular ultrasound examinations, etc.


Vascular imaging examinations; Mainly those requiring the Seldinger technique

Soichiro Ishihara


Colorectal Surgery; Vascular Surgery


M.D., Ph.D


General Surgery, Gastrointestinal Surgery, Colorectal Surgery, Laparoscopic Surgery, Robotic Surgery, Minimally Invasive Surgery, Chemotherapy, Gastrointestinal Endoscopy, Colorectal Disease, Anorectal Disease, Colorectal Cancer, Inflammatory Bowel Disease, Diverticular Disease, Colorectal Polyp, Vascular Surgery, Abdominal Aortic Aneurysm, Thoracic Aortic Aneurysm, Endovascular Aneurysm Repair, Thoracic Endovascular Aortic Repair, Distal Bypass, Critical Limb Ischemia, Takayasu's Disease, Buerger Disease, Pancreatoduodeal Artery Aneurysm, Popliteal Entrapment Syndrome, Behçet's Disease, Carotid Endarterectomy, Hemodialysis, Peripheral Artery Aneurysm, Segmental Arterial Mediolysis, Deep Vein Thrombosis

Research Interests

Surgical Oncology, Vascular Surgery



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Major diseases and numbers of inpatients treated

Disease name Total number of patients
1 Obstructive arterial sclerosis (in the lower extremities) 97
2 Acute arterial occlusion 5
3 Abdominal aortic aneurysms (including thoracic and iliac aneurysms) 63
4 Lower-extremity varicose veins 27
5 Carotid artery stenosis 0
6 Deep vein thrombosis 7
7 Shunt-related conditions 70
8 Visceral/peripheral arterial aneurysms/others 45


Areas of expertise, treatment and examination methods

  1. Arteriosclerosis
  2. Abdominal aortic aneurysms
  3. Lower-extremity varicose veins
  4. Deep vein thrombosis
  5. Acute arterial occlusion
  6. Visceral aneurism
Treatment methods
  1. Bypass grafting
  2. Aneurysm resection and graft placement/stent grafting
  3. Laser ablation of lower-extremity varicose veins/stripping
  4. Percutaneous angioplasty (such as PTA and stent placement)
Examination methods
  1. Angiography
  2. Gait function assessment
  3. Plethysmography
  4. Carotid ultrasonography
  5. Foot blood pressure measurement

Numbers of major operations and treatments performed

Name of operation/treatment Number
1 Lower-extremity bypass grafting and revascularization 18
2 Aortic aneurysm resection/graft placement 16
3 Aortic stent grafting 23
4 Laser ablation of lower-extremity varicose veins/stripping
5 PTA stenting 26
6 Resection of visceral/peripheral arterial aneurysms and shunt placement 33
7 Shunt-related conditions 70
8 Lower limbs / toe amputation 26


Numbers of major and specialized examinations conducted in this department

Name of examination Number
1 Angiography 27
2 Gait function assessment 95
3 Plethysmography 2685
4 Skin perfusion pressure test 219
5 Carotid ultrasonography 2306
6 Lower-extremity arterial and venous ultrasound 887
7 Renal artery ultrasound 132


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