Surgery

Department Overview

The Department of Surgery at our hospital is affiliated with Osaka University Graduate School of Medicine and certified by major surgical societies in Japan.

We provide a wide range of surgical treatments centered on gastrointestinal diseases, from conventional open surgery to minimally invasive laparoscopic procedures.

Postoperative care is supported by a dedicated High Care Unit (HCU), ensuring safe recovery after highly invasive procedures.

In collaboration with gastroenterology, we also perform non-invasive treatments such as EMR and ESD for early-stage cancers.

Gastric and Colorectal Cancer

Gastric and colorectal cancers are among the most common malignancies. Treatment is selected according to clinical guidelines based on disease stage.

Early-stage cancers are treated with laparoscopic surgery, while advanced cancers require resection with lymph node dissection. Multidisciplinary therapy is applied when necessary.

Palliative care is also integrated in cooperation with community healthcare providers.

Surgical Procedures for Gastric Cancer

• N1：1–2 lymph node metastases
• N2：3–6 lymph node metastases
• N3：7+ lymph node metastases
• M1：Distant metastasis

Types of Gastrectomy

• Total Gastrectomy：Complete removal of the stomach
• Distal Gastrectomy：Removal of lower stomach
• Pylorus-Preserving：Preserves pylorus
• Proximal Gastrectomy：Upper stomach removal
• Segmental Resection：Partial resection
• Local Resection：Limited removal
• Non-resection：Bypass / stoma creation

Colorectal Cancer Treatment

Treatment includes endoscopy, surgery, chemotherapy, and radiation based on stage classification.

Stage Classification

• Tumor depth
• Lymph node metastasis
• Distant metastasis

Post-operative Follow-up

Cholelithiasis

Gallstones commonly affect middle-aged women and are treated primarily with laparoscopic surgery.

Inguinal Hernia

Common in older men and may lead to serious complications if untreated.

Proctological Diseases

We treat hemorrhoids, fistulas, fissures, and abscesses with both conservative and surgical methods.

Emergency Services

We handle approximately 5,000 emergency cases annually including acute abdominal conditions.

Doctors Introduction

Hiroshi Yano

• Japan Surgical Society Specialist
• Gastroenterological Surgery Specialist

Yasuhito Kawasaki

• Surgical Specialist

Junichi Tanaka

• Department Director

Ryota Mukai