Yoshiaki Ota

ORCID: 0000-0003-4443-8365
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Endometriosis Research and Treatment
  • Uterine Myomas and Treatments
  • Endometrial and Cervical Cancer Treatments
  • Gynecological conditions and treatments
  • Ovarian cancer diagnosis and treatment
  • Intestinal and Peritoneal Adhesions
  • Assisted Reproductive Technology and Twin Pregnancy
  • Maternal and fetal healthcare
  • Pediatric Urology and Nephrology Studies
  • Minimally Invasive Surgical Techniques
  • Hedgehog Signaling Pathway Studies
  • Medical Malpractice and Liability Issues
  • Advanced Optical Sensing Technologies
  • Surgical Simulation and Training
  • Venous Thromboembolism Diagnosis and Management
  • Layered Double Hydroxides Synthesis and Applications
  • Salmonella and Campylobacter epidemiology
  • IgG4-Related and Inflammatory Diseases
  • Machine Learning in Healthcare
  • Astrophysical Phenomena and Observations
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • Omental and Epiploic Conditions
  • Body Contouring and Surgery
  • Remote Sensing and LiDAR Applications
  • Gamma-ray bursts and supernovae

Kawasaki Medical School
2020-2024

Kurashiki Medical Center
2008-2018

Medical Center Hospital
2015

Keio University
2010

Osaka University
2008

Osaka Red Cross Hospital
1962

Kyushu University
1961

Data for healthcare applications are typically customized specific purposes but often difficult to access due high costs and privacy concerns. Rather than prepare separate datasets individual applications, we propose a novel approach: building general-purpose generative model applicable virtually any type of application. This encompasses broad range human attributes, including age, sex, anthropometric measurements, blood components, physical performance metrics, numerous healthcare-related...

10.1101/2025.01.23.25320504 preprint EN cc-by medRxiv (Cold Spring Harbor Laboratory) 2025-01-25

Japan is frequently hit by major earthquakes, such as the 2011 off Pacific coast of Tohoku Earthquake and 2024 Noto Peninsula Earthquake, which cause enormous human economic losses. Short-term forecast earthquakes effective for mitigating damage, but this has not been achieved to date. On other hand, there have reports electromagnetic phenomena preceding in various frequency bands, including precursor VLF/LF band (3-300 kHz). In study, we investigated earthquake-related signals, strong...

10.5194/egusphere-egu25-10447 preprint EN 2025-03-14

Immunoglobulin G (IgG)4-related disease is a recently defined entity that characterized by elevated serum IgG4 levels and abundant infiltration of IgG4-positive plasma cells high-grade sclerosis the affected region.1 This includes autoimmune pancreatitis, Mikulicz disease, pseudotumor lung, tubulointerstitial nephritis, Riedel thyroiditis,2 but only CNS involvement has been reported so far hypophysitis.3 In this report, case intracranial IgG4-related pachymeningitis, involving dura mater,...

10.1212/wnl.0b013e3181f73685 article EN Neurology 2010-10-11

Background Pain-relieving effects of dienogest against endometriosis are comparable to leuprolide acetate for 24 weeks. We assessed whether long-term administration reduces recurrence after endometrioma excision. Methods In this retrospective cohort study, 568 women with MRI-based diagnosis ovarian endometrioma, who underwent laparoscopic stripping between 2008 and 2013, were studied. Recurrence rates side over 5 years investigated in 417 without postoperative medication 151 received...

10.5301/je.5000219 article EN Journal of Endometriosis and Pelvic Pain Disorders 2015-04-01

Abstract Purpose To evaluate the efficacy of two progestins, levonorgestrel intrauterine system (LNG‐IUS) and dienogest (DNG), for adenomyosis. Methods This study enrolled 157 women with adenomyosis, randomized to either LNG‐IUS ( n = 76) or DNG 81) groups as a controlled clinical trial 72 months. Participants were classified by three different localizations adenomyosis: diffuse, focal, extrinsic. VAS (Visual analog scale) score, days, amount uterine bleeding assessed. Uterine volume bone...

10.1002/rmb2.12408 article EN cc-by-nc-nd Reproductive Medicine and Biology 2021-09-07

Abstract Aim Our hospital adopted laparoscopic surgery for early‐stage cervical cancer in August 1998, with robot‐assisted implemented October 2013. This study aimed to compare short‐term outcomes conventional radical hysterectomy (LRH) and (RARH) assess the technical feasibility of RARH cancer. Methods We retrospectively compared operative time, blood loss, number resected lymph nodes, length postoperative stay, rate positive vaginal margin perioperative complications between two groups 121...

10.1111/jog.13858 article EN Journal of Obstetrics and Gynaecology Research 2018-11-13

Robotic simple hysterectomy (RSH) is the most common robotic gynecologic surgery in United States. Uterine manipulators are commonly used to handle uterus during laparoscopic surgery, but few studies have examined their necessity RSH. This study retrospectively compares RSH cases with and without use of manipulators, identifies predictors for intraoperative use.

10.3389/fmed.2024.1462632 article EN cc-by Frontiers in Medicine 2024-09-11

Objective Adenomyosis-related infertility is increasingly being diagnosed, and surgical intervention has been suggested to improve fertility. Elastography, a noninvasive ultrasound technique, promising for diagnosing guiding the resection of adenomyosis. This report presents first case successful delivery after twin pregnancies achieved with IVF following intraoperative elastography-guided laparoscopic adenomyomectomy. Case A 35-year-old Japanese woman uterine adenomyosis received...

10.3389/fmed.2024.1457611 article EN cc-by Frontiers in Medicine 2024-09-26

Total laparoscopic hysterectomy has been reported as having a higher incidence of vaginal cuff dehiscence compared with the abdominal and/or hysterectomy. The cause after total is not specified, but possible causes may be use thermal energy for incision, reduced suturing width due to magnification, low quality skills and early resumption regular activities surgery.We performed 677 cases benign diseases, such fibroids or adenomyosis, from January 2007 December 2008 in our institute. We...

10.1111/j.1758-5910.2010.00065.x article EN Asian Journal of Endoscopic Surgery 2010-12-22

Abstract Background Endometriosis can potentially lead to the development of a malignant tumor. Most tumors arising from endometriosis originate ovarian endometrioma, whereas those extragonadal lesions are rare. We report rare case endometrioid carcinoma that developed deep infiltrating in uterosacral ligament 6 years after treatment for atypical proliferative tumor ovary 48-year-old woman. Case presentation Six ago, patient underwent laparoscopic bilateral salpingo-oophorectomy her right...

10.1186/s12957-020-02105-1 article EN cc-by World Journal of Surgical Oncology 2020-12-01

We examined whether a new suturing method that used single-thread unidirectional barbed suture without exposing the barbs on wound surface was acceptable compared with conventional during laparoscopic myomectomy (LM).This retrospective study. The subjects were 26 women who underwent LM for symptomatic uterine fibroids. operative time, amount of blood loss, and number threads between group in which performed synthetic absorbable (conventional group, n = 13) using (barbed 13).Operative time...

10.4103/gmit.gmit_105_20 article EN cc-by-nc-sa Gynecology and Minimally Invasive Therapy 2021-04-01

Abstract Purpose To test the theory that invaginated ovarian surface epithelium and endometrial implants on ovary form endometriomas. Methods Adhesion sites of endometrioma peritoneum consecutive cyst wall, called non‐adhesion sites, were histologically examined. DNA methylomes adhesion blueberry spots compared with those ovary, endometrium, peritoneum. Results The showed an epithelium‐like structure near site, which continued to a columnar structure. Calretinin staining was strong in but...

10.1002/rmb2.12548 article EN cc-by Reproductive Medicine and Biology 2023-01-01

Detecting adenomyosis in the myometrium is a challenge since it infiltrative with ill-defined margins and can be often confused uterine fibroids. However, recent advances, such as ultrasound elastography, have enabled its detection myometrium, thereby facilitating accurate diagnosis. We report our experience of performing complete laparoscopic resection under real-time elastography guidance 32-year-old woman who underwent adenomyomectomy following severe dysmenorrhea heavy menstrual...

10.1016/j.heliyon.2020.e04628 article EN cc-by Heliyon 2020-08-01

Background: This study aimed to examine the clinical characteristics of 11 patients undergoing laparoscopic adenomyomectomy guided by intraoperative ultrasound elastography and this technique’s feasibility. Patients Methods: Eleven using for adenomyosis at Kawasaki Medical School Hospital in Okayama, Japan between March 2020 February 2021 were enrolled. Operative outcomes included operative time, bleeding, resected weight, operation complications, percent change hemoglobin (Hb) values,...

10.3390/jcm11226707 article EN Journal of Clinical Medicine 2022-11-12

Ovarian abscess is thought to be caused by ascending infection. We experienced a case with ovarian Salmonella. The patient had been monitored for endometrial cysts at an outpatient clinic. She visited our hospital emergently chief complaints of persistent fever and diarrhea. Although sexually transmitted disease was not suspected, she diagnosed pelvic inflammatory due her high C-reactive protein (CRP) level started antibacterial treatment. Two days later, diagnostic laparoscopy performed...

10.4103/gmit.gmit_92_20 article EN cc-by-nc-sa Gynecology and Minimally Invasive Therapy 2022-01-01

A low dose of dienogest (DNG) 1 mg/day is useful for treating dysmenorrhea in young women. However, the effect DNG on bone turnover during growth and formation, rather than at maturity, currently unknown even doses. We investigated change after 3 months mg/day. This retrospective cohort study included women aged 10–24 years with irregular menstruation. Gonadotropins metabolism markers TRACP-5b BAP were compared before administration There no significant changes (before, 455.6 ± 323.6 mU/dL;...

10.3390/endocrines2030027 article EN cc-by Endocrines 2021-08-26

Adenomyosis is commonly treated by total hysterectomy. Adenomyomectomy considered for women of reproductive age who wish to preserve their fertility. However, a high recurrence rate following adenomyomectomy has been reported because complete removal the lesion difficult, and uterine rupture during pregnancy remains complication. We previously that laparoscopic using cold knife prevented thermal damage myometrium elastography avoid residual lesions. Here, we report case patient underwent...

10.3390/endocrines2030032 article EN cc-by Endocrines 2021-09-09

<title>Abstract</title> Nearly 20 years have passed since the introduction of robotic surgery for total hysterectomy, and its development has accelerated. However, advantages over laparoscopic open surgeries remain unclear, especially some drawbacks include requirement skilled assistants effective use arms. We developed a hysterectomy technique (pure simple [PRSH]). PRSH uses four arms without interference does not require uterine manipulator, thereby minimizing number assistants....

10.21203/rs.3.rs-4418722/v1 preprint EN cc-by Research Square (Research Square) 2024-05-30

Detecting ureteral injury-a serious intraoperative and postoperative complication of hysterectomy-is a high level difficulty if malformations are not identified preoperatively. A 39-year-old Japanese woman underwent total laparoscopic hysterectomy for uterine adenomyosis. During surgery, peristalsis was absent on the right side, whereas left ureter visible under peritoneum. Transabdominal ultrasonography failed to locate kidney, with cystoscopy showing no flow from orifice. The tunnel by...

10.1111/jog.15992 article EN Journal of Obstetrics and Gynaecology Research 2024-06-17

Introduction and hypothesis Pelvic organ prolapse (POP) affects approximately 30% of middle-aged older women, with 11%–19% requiring surgical intervention. Laparoscopic sacrocolpopexy preserves the vaginal axis length but involves a steep learning curve longer operation times. Robotic (RSC) addresses these issues, offering enhanced precision. This study aimed to evaluate feasibility effectiveness novel manipulator (Hoyte Sacro Tip®; Cooper Surgical, Trumbull, CT, USA) compared traditional...

10.3389/fsurg.2024.1491233 article EN cc-by Frontiers in Surgery 2024-11-07
Coming Soon ...