Yoichi Nakagawa

ORCID: 0000-0003-1570-8661
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About
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Research Areas
  • Pediatric Hepatobiliary Diseases and Treatments
  • Gallbladder and Bile Duct Disorders
  • Esophageal and GI Pathology
  • Congenital Anomalies and Fetal Surgery
  • Congenital Diaphragmatic Hernia Studies
  • Tracheal and airway disorders
  • Intestinal Malrotation and Obstruction Disorders
  • Oral and Maxillofacial Pathology
  • Hernia repair and management
  • Congenital gastrointestinal and neural anomalies
  • Ocular Diseases and Behçet’s Syndrome
  • Salivary Gland Tumors Diagnosis and Treatment
  • Salivary Gland Disorders and Functions
  • Liver Disease and Transplantation
  • Tumors and Oncological Cases
  • Foreign Body Medical Cases
  • Urological Disorders and Treatments
  • Pancreatitis Pathology and Treatment
  • Intestinal and Peritoneal Adhesions
  • Gastrointestinal disorders and treatments
  • Retinal and Optic Conditions
  • Retinal Development and Disorders
  • Cancer, Hypoxia, and Metabolism
  • Multiple Myeloma Research and Treatments
  • Ocular Surface and Contact Lens

Nagoya University
2021-2025

Nagoya University Hospital
2023

Nishi Eye Hospital
2004-2021

Furuno (Japan)
2021

Ogaki Municipal Hospital
2019-2020

Panasonic (Japan)
2013-2017

Prefectural University of Kumamoto
2015

Oita University
2011-2013

Kumamoto University
2008-2012

Kumamotorosaibyoin
2010

Abstract Aim: This study aimed to investigate factors associated with depression in a sample of elderly Japanese individuals rural community and examine differences among living alone or others. Methods: Using population‐based from Japan, we assessed total 1552 participants aged 65 years older by mailing survey evaluating responses based on the Geriatric Depression Scale. Factors were also examined. Results: We received 964 valid responses. Depressed subjects comprised 20.5% sample. Living...

10.1111/j.1479-8301.2012.00402.x article EN Psychogeriatrics 2012-09-01

We propose a novel system for tracking multiple pedestrians in crowded scene by exploiting single-row laser range scanners that measure distances of surrounding objects. A walking model is built to describe the periodicity movement feet spatial-temporal domain, and mean-shift clustering technique combination with spatial- temporal correlation analysis applied detect pedestrians. Based on model, particle filter employed track Compared camera-based methods, our provides relatively large area....

10.1109/iros.2007.4399152 article EN 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems 2007-10-01

Robot-assisted surgery (RS) has gained popularity due to its potential advantages over conventional laparoscopic (LS). However, the specific suturing steps that benefit most from RS in terms of efficiency remain unclear. This study aimed compare performance and learning curves LS during hepaticojejunostomy. We retrospectively analyzed surgical videos patients who underwent hepaticojejunostomy performed by same surgeon between 2016 2023. Cases with incomplete data or conversion open were...

10.3389/fped.2025.1558362 article EN cc-by Frontiers in Pediatrics 2025-03-18

Abstract Background Young pediatric surgeons should receive adequate training in various minimally invasive surgeries (MIS). However, it is essential to maintain patient safety and outcomes during the learning process. In Japan, endoscopic surgical skill qualification (ESSQ) system surgery was initiated by Japan Society for Endoscopic Surgery (JSES) 2009 objectively evaluate of surgeons. This study compared perioperative between with ESSQ qualifications those without (non-ESSQ). Methods We...

10.1007/s00464-025-11657-w article EN cc-by Surgical Endoscopy 2025-03-20

Abstract Background In Japan, the administration of extra‐hypotonic fluids (approximately 35 mmol/L sodium) as maintenance fluid is still mainstream practice, and there have been relatively few reports on intravenous therapy. Since 2014, our institution has administered containing 83 Na (HALF) after diuresis achieved post‐Kasai portoenterostomy for biliary atresia (BA). We investigated whether hyponatremia induced by half saline during postoperative infants with BA. Methods Patients who...

10.1111/ped.70016 article EN cc-by Pediatrics International 2025-01-01

The c-fos proto-oncogene is known to be regulated by a variety of hormones, growth factors, and other conditions that alter cellular metabolism. regulation RNA concentrations occur both altered half-life and/or changes in the transcription rate gene. In most cases thus far investigated, induction factors occurs very rapidly transiently. Results presented this paper show ouabain, specific inhibitor Na/K-ATPase increases c-fos, as well c-jun, cultured cells. However, contrast agents induce...

10.1016/s0021-9258(19)50347-7 article EN cc-by Journal of Biological Chemistry 1992-05-01

Objective: To evaluate the ability of Moisture Checker for Mucus (MCM), a device which measures weight percent water content in oral mucosal epithelium, diagnosis dry mouth. Method: Forty‐three consecutive patients seen at Dry Mouth Clinic Tsurumi University were divided into two groups by diagnostic criteria hyposalivation defined stimulated salivary flow rate ≤10 ml per 10 min. The MCM values buccal, tongue and labial mucosa each group compared. Results: value normal salivation was...

10.1111/j.1601-0825.2005.01136.x article EN Oral Diseases 2005-11-01

Biliary atresia (BA) is a rare pediatric disease.To compare the outcomes of laparoscopic portoenterostomy (Lap-PE) with those laparotomy (Open-PE) at single institution.The surgical PE were retrospectively analyzed for patients non-correctable type BA from 2003 to 2020.Throughout assessment period, 119 received treatment, including 66 Open-PE and 53 Lap-PE cases. Although operation duration was longer (medians: Open-PE, 242 min; Lap-PE, 341 P < 0.001), blood loss considerably less 52 mL; 24...

10.4240/wjgs.v14.i1.56 article EN World Journal of Gastrointestinal Surgery 2022-01-19

Abstract Purpose The surgical indication of thoracoscopic primary repair for esophageal atresia with tracheoesophageal fistula is under debate. current study aimed to investigate the outcome in patients weighing &lt; 2000 g and those who underwent emergency surgery at age 0 day. Methods outcomes were compared between &gt; day ≥ 1 Results In total, 43 fistula. according body weight similar. Patients more likely develop anastomotic leakage than (2 vs. case, p = 0.02). Anastomotic was treated...

10.1007/s00383-024-05724-x article EN cc-by Pediatric Surgery International 2024-06-03

Congenital biliary dilatation (CBD) is a disease associated with pancreaticobiliary maljunction. The most frequent postoperative complication intrahepatic stones, which are caused by hilar bile duct stenosis (HBDS).We retrospectively reviewed the records of patients who underwent primary surgery for CBD between 2013 and 2021. We evaluated images videos HBDS, laparoscopic technique releasing stenosis, its occurrence rate compared intraoperative findings those preoperative magnetic resonance...

10.1002/jhbp.1235 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2022-09-01

Brain images obtained by a positron emission tomography with 18F-fluorodeoxyglucose from 19 pretreatment cancer patients variable cancers except brain were compared those 17 inpatients benign diseases. Relative reduction in regional cerebral metabolism of glucose was found mainly the limbic structures including bilateral orbitofrontal cortex, lateral frontal cingulate gyrus, thalamus, hippocampus and parahippocampal insulae, basal ganglia. The tended to be low who had severe pains which...

10.1002/(sici)1099-1611(199907/08)8:4<283::aid-pon384>3.0.co;2-a article EN Psycho-Oncology 1999-07-01

Recent transplantation studies indicate that subretinal space is not always an immunologically privileged site and non-autologous cells may be rejected in patients with exudative age-related macular degeneration (AMD). We performed autologous iris pigment epithelial (IPE) cell by suspension after IPE culture 8 AMD. These were followed without immunosuppression between 1.5 months the retinal function was analyzed. No cystoid edema or fluorescein leakage observed. Six of improved visual acuity...

10.1620/tjem.189.295 article EN The Tohoku Journal of Experimental Medicine 1999-01-01

Esophageal atresia (EA) is often associated with tracheomalacia (TM). The severity of TM symptoms varies widely, serious cases requiring prolonged respiratory support and surgical treatment. Although we performed thoracoscopic posterior tracheopexy (TPT) during primary EA repair to prevent or reduce the TM, few studies have investigated safety effectiveness TPT repair. Therefore, this study aimed evaluate efficacy in neonates.We retrospectively reviewed records all patients diagnosed who...

10.1186/s12893-022-01738-1 article EN cc-by BMC Surgery 2022-07-25

We conducted a study to develop an assessment sheet for fall prediction in stroke inpatients that is handy and reliable help ward staff devise prevention strategy each inpatient immediately upon admission.The consisted of three steps: (1) developing data sampling form record variables related risk falls conducting follow-up survey from their admission discharge by using the form; (2) carrying out analyses characteristics present subjects selecting showing high hazard ratio (HR) Cox...

10.1007/s12199-007-0023-8 article EN cc-by Environmental Health and Preventive Medicine 2008-04-05

Intradialytic hypotension (IDH) is one of the major problems in performing safe hemodialysis (HD). As blood volume depletion by fluid removal a cause hypotension, careful regulation change fundamental. This study examined effect intermittent back-filtrate infusion hemodiafiltration (I-HDF), which modifies and ultrafiltration pattern. Purified on-line quality dialysate was intermittently infused back filtration through dialysis membrane with programmed machine. A bolus 200 ml at 30 min...

10.1007/s10157-016-1270-z article EN cc-by Clinical and Experimental Nephrology 2016-04-28

The prognosis of BA is known to be poor if definitive surgery performed too late. Therefore, excluding as a diagnosis at an early stage crucial. Conventional cholangiography requiring cannulation through the gallbladder may unnecessarily invasive for patients, especially when ruling out BA. less alternative such indocyanine green (ICG) cholangiography, which does not require cannulation, should established. In this study, we focused on and confirmed usefulness intravenous ICG fluorescence...

10.3389/fped.2022.1005879 article EN cc-by Frontiers in Pediatrics 2022-11-04
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