Gynecology

What we do

The Department of Gynecology provides advanced, comprehensive, and specialized medical and surgical care across all spectrums of women’s health, from benign gynecological conditions to complex gynecological malignancies.

Key Strengths & Patient-Centered Care

Pioneering Laparoscopic Expertise (Benign Disease): We are a regional leader in Chiba Prefecture for minimally invasive laparoscopic surgeries (uterine fibroids, ovarian cysts, etc.). We prioritize safety, cosmetic outcomes (minimal scarring), and reduced post-operative complications.

Comprehensive Integrated Cancer Care: As a designated Cancer Care Hospital, we offer complete in-house oncological care—including surgery, radiation therapy, chemotherapy, and Cancer Genomic Medicine in collaboration with Medical Oncology.

Convenient Outpatient Options (OPEN Clinic): Patients visiting Kameda Clinic (Kamogawa) who face booking difficulties can access our Walk-in OPEN Outpatient Clinic (no prior appointment needed; registration required before 10:30 AM, Monday–Saturday).

Tokyo & Makuhari Satellite Outpatient Clinics: For patient convenience, attending physicians from our main hospital conduct consultations at our satellite centers:

Kameda Kyobashi Clinic (6-min walk from Tokyo Station / Direct access from Kyobashi Station)

Kameda MTG Clinic (2-min walk from Kaihin-Makuhari Station)
(Patients seeking surgery are encouraged to mention this when booking for seamless coordination).

Premium Inpatient Experience at K-Tower

Patients staying in K-Tower private rooms enjoy a healing environment with ocean views, thoughtful amenities, and wellness facilities:

Private Room Amenities: Free Wi-Fi, personal storage, refrigerator, sofa bed, private shower, toilet, vanity, and tea kettle. (Special VIP Suites available on the 12th Floor).

In-Hospital Wellness & Care: Access to the PonoPono Esthetic Salon (K-Tower 4F), Beauty Salon NANI (K-Tower 5F), and the 5th Floor Sky Lounge.

Conditions we handle

1. Benign Gynecological Conditions

Minimally Invasive Laparoscopy: Active use of advanced laparoscopic approaches for uterine fibroids and ovarian cysts, enabling swift recovery with hospital discharge typically in 3 to 4 days.

Hybrid & Cosmetically Preserved Procedures: For giant or multiple fibroids unsuitable for laparoscopic-only techniques, we perform Laparoscopic-Assisted Myomectomy or Mini-Laparotomy via a low mini-transverse incision to balance aesthetic outcomes, safety, and curability.

Hysteroscopic & Endometrial Therapies: Hysteroscopic resection for submucosal fibroids and endometrial polyps, as well as Microwave Endometrial Ablation (MEA) for menorrhagia (heavy menstrual bleeding).

2. Gynecological Malignancies & Precancers

Precision Cervical Conization: For high-grade cervical dysplasia (HSIL/CIN3), we utilize a Holmium:YAG Laser for precision tissue removal with minimal bleeding. Thermal coagulation preserves surrounding tissue regeneration, significantly reducing future risks of miscarriage or preterm delivery. (Note: Laser ablation alone without tissue histology is not performed, ensuring exact diagnostic accuracy).

Cervical Cancer: Comprehensive management offering surgery, chemotherapy, and in-house Concurrent Chemoradiotherapy (CCRT)—typically managed as a 1- month inpatient protocol for maximum safety and symptom management.

Uterine / Endometrial Cancer: Staging and curative surgeries tailored to disease extent. Laparoscopic staging is selected when clinically appropriate, strictly prioritizing oncological curability and patient safety.

Ovarian Cancer: Integrated surgical debulking and systemic chemotherapy. We collaborate with Clinical Genetics for genetic testing (BRCA/HRD) to guide targeted molecular therapies (PARP inhibitors).

Recurrent Cancer & Genomic Medicine: Advanced genetic profiling and targeted therapies provided in partnership with the Department of Medical Oncology and Cancer Genomics.

**Pelvic Floor Disorders & Incontinence Notice**
For treatment of Pelvic Organ Prolapse (uterine prolapse, cystocele) or urinary incontinence, please consult our specialized Urogynecology Center or Department of Urology.

Second Opinion & Satellite Care

Second Opinion Services: Available at Kameda Clinic (Kamogawa) for patients seeking expert evaluation on treatment plans.

Satellite Outpatient Care: Comprehensive evaluations and surgical consultations available at Kameda Kyobashi Clinic and Kameda MTG Clinic.

Number of cases

Total Outpatient Consultations (Ob/Gyn): 27,990 patients
Total Inpatient Admissions (Ob/Gyn): 9,379 patient days (or admissions)

(FY2024 Record)

List of Doctors

Chief of Obstetrics and Gynecology

Isao OTSUKA

Subspeciality
Gynecologic Oncology

Department name	Gynecology
Medical School	Tokyo Medical and Dental University
Special Qualifications	Board Certified Specialist of Japan Society of Obstetrics and Gynecology Board Certified Specialist of Japan Society of Gynecologic Oncology Board Certified Physician of Japanese Japan Board of Cancer Therapy Ph.D. in Medical Science (2003)
Education & Career	1988.Mar. Graduated from Tokyo Medical and Dental University (M.D. Degree) 1988.Jun. Residency in Obstetrics and Gynecology， Tokyo Medical and Dental University Hospital 1989.Apr. Residency in Obstetrics and Gynecology， Tsuchiura Kyodo General Hospital 1992.Apr. Residency in Gynecologic Oncology， Tokyo Metropolitan Komagome Hospital 1995.Apr. Assistant Professor， Department of Obstetrics and Gynecology， Tokyo Medical and Dental University 1997.Jan. Tokyo Medical and Dental Hospital 1999.Apr. Lecturer of School of Medicine， Tokyo Medical and Dental University 2002.Oct. Chief of Gynecology， Kameda Medical Center 2006. Clinical Associate Professor， Tokyo Medical and Dental University 2013. Clinical Professor， Tokyo Medical and Dental University 2015. Oct. Chief of Obstetrics and Gynecology， Kameda Medical Center

Vice Chief of Obstetrics and Gynecology

Tokumasa SUEMITSU

Subspeciality
Obstetrics and Gynecology ， Perinatal medical care ， Fetal ultrasound

Department name	Gynecology
Medical School	Nihon University School of Medicine
Special Qualifications	Obstetrics and gynecology specialist certified by the Japan Society of Obstetrics and Gynecology Perinatal care (maternal and fetal) specialist certified by the Japan Society of Perinatal and Neonatal Medicine Ultrasonics Specialist certified by the Japanese Society of Ultrasonics in Medicine
Education & Career	2010 Mar. Graduated from Nihon University School of Medicine 2010 Apr. Junior Resident of After Graduated Training Center，Kameda Medical Center 2012 Apr. Senior Resident of Obstetrics and Gynecology，Kameda Medical Center 2015 Apr. Obstetrics and Gynecology，Kameda Medical Center 2017 Sep Assistant Chief of Obstetrics and Gynecology，Kameda Medical Center 2019 May. Vice Chief of Obstetrics and Gynecology，Kameda Medical Center

Andrology