Katsuhiko Sato

ORCID: 0000-0003-2286-3854
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About
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Research Areas
  • Peripheral Artery Disease Management
  • Vascular Procedures and Complications
  • Spine and Intervertebral Disc Pathology
  • Coronary Interventions and Diagnostics
  • Pelvic floor disorders treatments
  • Musculoskeletal pain and rehabilitation
  • Cerebrovascular and Carotid Artery Diseases
  • Low-power high-performance VLSI design
  • Lipoproteins and Cardiovascular Health
  • Anorectal Disease Treatments and Outcomes
  • Peripheral Nerve Disorders
  • Ureteral procedures and complications
  • Cardiac Imaging and Diagnostics
  • Pelvic and Acetabular Injuries
  • Nerve Injury and Rehabilitation
  • Parallel Computing and Optimization Techniques
  • Central Venous Catheters and Hemodialysis
  • Acute Ischemic Stroke Management
  • Cervical and Thoracic Myelopathy
  • Advancements in Semiconductor Devices and Circuit Design
  • Hernia repair and management
  • Acute Myocardial Infarction Research
  • Aortic aneurysm repair treatments
  • Orthopedic Surgery and Rehabilitation
  • Embedded Systems Design Techniques

Sapporo Science Center
2018-2025

Toshiba (Japan)
1986-2024

Nagoya Heart Center
2019-2024

Jyoban Hospital
2024

Oita Medical Center
2018-2022

Nihon University
1981-2019

Takayanagi Dental Clinic
2015-2018

Tokeidai Memorial Hospital
2011-2018

Fukushima Medical University
1999-2018

Nagoya University
2014

Study Design. In vivo intradiscal pressure measurement in different postures healthy individuals and those with ongoing back problems. Objectives. With the most recent technique, 1) to analyze influence of degeneration on pressure, 2) calculate spinal load L4–L5 intervertebral discs, 3) assess relation between movement motion segment. Summary Background Data. Almost all data are from studies by Nachemson. The results these pioneering have formed basis for current knowledge about loading...

10.1097/00007632-199912010-00008 article EN Spine 1999-12-01

While primary percutaneous coronary intervention (PCI) has significantly contributed to improve the mortality in patients with ST segment elevation myocardial infarction even cardiogenic shock, PCI is a standard of care most Japanese institutions. Whereas there are high numbers available facilities providing Japan, no clear guidelines focusing on procedural aspect standardized care. Whilst updated for management acute were recently published by European Society Cardiology, following major...

10.1007/s12928-018-0516-y article EN cc-by Cardiovascular Intervention and Therapeutics 2018-03-29

We investigated the mechanical load of lumbar spine caused by changes posture and carried load.To clarify relationship between actual theoretical with without application external weights.There is sparse knowledge regarding intradiscal pressure trunk muscle activities during forward bending motion.The measurements pressure, electromyogram muscles, motion analysis in 3 young healthy men were performed simultaneously lifting a weight 10 kg. The recorded values compared based on principle...

10.1097/01.brs.0000192636.69129.fb article EN Spine 2005-12-30

Anatomic and radiographic studies were made to investigate normal variation of dorsal root ganglia in lumbosacral roots. The spinal nerves could be divided into two groups, with without bifurcation ventral nerve ganglion. bifurcated group was further classified three types. L4 L5 roots all bifurcated, S1 nonbifurcated. positions types: intraspinal, intraforaminal, extraforaminal. At roots, they mostly whereas at S1, intraspinal. Proximally placed had a high frequency ganglionic indentation....

10.1097/00007632-199401000-00002 article EN Spine 1994-01-01

Objective: To prospectively evaluate the efficacy of a tension‐free vaginal mesh (TVM) procedure for pelvic organ prolapse (POP). Methods: Between December 2005 and April 2008, 310 female patients (mean age 67.2 years, range 42–84) with POP underwent TVM procedures at our institute. Fifty‐six individuals were qualified as stage 2 according to quantification system 162 92 3 4, respectively. One hundred ninety‐one anterior TVM, seven posterior TVM. twelve cases both procedures. Each patient...

10.1111/j.1442-2042.2010.02469.x article EN International Journal of Urology 2010-02-22

The delivery of the rotational atherectomy burr can sometimes be hindered in distal calcified lesions complicated by proximal vessel tortuosity or other obstacles. This problem may result procedural failure fatal complications, including coronary perforation, entrapment, driveshaft fracture. To prevent these catastrophic outcomes and ensure successful delivery, we introduce DELIVER (Deep Engagement guide catheter 5-F chiLd-guIde for deliVEry subsequent Rotational atherectomy) technique....

10.1016/j.jaccas.2024.103177 article EN cc-by JACC Case Reports 2025-03-01

Study Design. Compression onset rate, anatomic aspects, and morphologic neurophysiologic effects in spinal nerve roots were studied a root compression model pigs. Objectives. To analyze the rate by measuring gradual reduction of inner diameter constrictor, motor conduction velocity electromyography, changes light microscopy, gross vascular anatomy dissection ink injections, respectively, for experimental chronic compression. Summary Background Data. Chronic is recognized to be related back...

10.1097/00007632-199705010-00003 article EN Spine 1997-05-01

Transarticular screw fixation has shown increased stability compared with other posterior stabilization techniques. However, there have been few reports on vertebral artery injury related to the insertion. The current study measured parameters of pedicle and groove axis clarified accuracy safety transarticular fixation. Direct measurements were taken from 98 dry vertebrae. width height measured. mediolateral anteroposterior dimensions also Forty-one percent had asymmetry. In 20% specimens,...

10.1097/00003086-200303000-00020 article EN Clinical Orthopaedics and Related Research 2003-03-01

Background:The results of previous clinical trials on the effects ezetimibe-statin combination therapy atherosclerosis are inconsistent, and anti-atherosclerotic effect ezetimibe remains controversial.

10.1253/circj.cj-17-0598 article EN Circulation Journal 2017-12-06

Purpose: To describe the feasibility of balloon angioplasty using a long for chronic femoropopliteal occlusions by evaluating angiographic dissection patterns optimization outcomes in angioplasty. Methods: A retrospective, single-center analysis examined 101 symptomatic patients (mean age 75.6±9.9 years; 65 men) with single de novo occlusive lesions treated between August 2012 and October 2016. The were classified into 2 groups comparison patterns: 51 balloons (L-BA; defined as ≥220 mm...

10.1177/1526602818756610 article EN Journal of Endovascular Therapy 2018-02-11

An anatomic study of lumbar nerve root lesions in the foraminal zone was performed on 35 cadavers. Two morphologic abnormalities roots intervertebral foramen were found. The first an abnormal transverse course roots. second indentation dorsal ganglia caused by compression superior articular facet, degenerative bulging discs, or both. incidence dependent location age. For details, at L5 level, located proximal part neuroforamen had highest incidence, and extraforaminally have lowest...

10.1097/00007632-199311000-00017 article EN Spine 1993-11-01

Study Design. This study is a prospective, clinical assessing the efficacy of selective decompression responsible level in two-level stenosis accordance with neurologic findings defined by gait load test, and functional diagnosis based on nerve root block. Objective. To clarify features regarding for symptoms, neurogenic intermittent claudication, outcome decompression. Summary Background Data. Experimental studies have indicated that double-level compression cauda equina induces more severe...

10.1097/00007632-199708150-00018 article EN Spine 1997-08-01

To describe the feasibility and safety of an anterolateral popliteal puncture technique as a retrograde access to chronic total occlusions (CTOs) in femoropopliteal segment.Twenty consecutive patients (mean age 75.1±10.9 years; 13 women) with symptomatic occlusive disease underwent endovascular therapy via using technique. With patient supine, P3 segment artery was accessed sheathless intended provide minimally invasive access. Subsequent wire rendezvous CTO, antegrade guidewire advanced...

10.1177/1526602817713307 article EN Journal of Endovascular Therapy 2017-06-07

Study Design A new model for controlled, graded compression of the dog cauda equina was developed using lumbar spine. The defined regarding macroscopic, microscopic, and vascular anatomy accuracy in pressure transmission. Objectives study performed to develop a that would allow acute, chronic, delayed compression. Summary Background Data There has been an increasing interest reactions spinal nerve roots mechanical deformation. previously used models have had limitations duration onset...

10.1097/00007632-199512150-00019 article EN Spine 1995-12-01

A comparative study regarding the clinical outcome of 2-different surgical procedures for patients with cervical spondylotic myelopathy (CSM).To describe anatomic basis a segmental partial laminectomy (SPL) treatment and to compare traditional C3 C7 expansive open-door laminoplasty (ELAP).Laminoplasty has been widely accepted CSM. However, some disadvantages have also recognized. To resolve these problems, SPL was performed. No previous studies reported this procedure.A total 13 human...

10.1097/brs.0b013e318195b27a article EN Spine 2009-01-26

There are few studies of the therapeutic effects long-term corset wearing in patients with chronic low back pain. The aim this study was to evaluate on pain and examine myoelectrical activities paravertebral muscles. Forty subjects were enrolled randomly divided into two groups: a group corsets for 6 months (CW) not (NW). treatment measured using Japanese Orthopaedic Association (JOA) score. Muscle endurance evaluated during Biering-Sorensen test (S-test), degree muscle fatigue by change...

10.5387/fms.58.60 article EN cc-by-nc-sa FUKUSHIMA JOURNAL OF MEDICAL SCIENCE 2012-01-01

Multiple Mobile Spherules in Mature Cystic Teratoma of the OvarySatomi Kawamoto1 2, Katsuhiko Sato3, Hiroshi Matsumoto4, Yoshichika Togo4, Yoshihiko Ueda5, Junji Tanaka1 and Atsuko Heshiki1Audio Available | Share

10.2214/ajr.176.6.1761455 article EN American Journal of Roentgenology 2001-06-01

We have experienced two cases of intravesical transobturator tape (TOT) successfully removed by laparoscopic transvesical procedure. Patient 1 was a 67-year-old woman complaining irritative symptoms the urinary bladder. In another hospital she had undergone anterior corporrhaphy and TOT procedure to treat cystocele stress incontinence (SUI) 17 months before initial consultation. A cystoscopy revealed extrusion adherent calculi at 4 5 O'clock position bladder neck. After filling with carbon...

10.1111/j.1442-2042.2011.02869.x article EN International Journal of Urology 2011-10-12

Objective To evaluate the impact of pelvic floor reconstruction on lower urinary tract symptoms in patients with organ prolapse. Methods We carried out a prospective study at single institution. A total 223 female who underwent tension‐free vaginal mesh surgery for prolapse between J anuary 2006 and F ebruary 2010 were enrolled prospectively evaluated. 171 cases concurrent stress incontinence (76% all cases) concomitant transobturator tape sling. For evaluation symptoms, parameters included...

10.1111/iju.12281 article EN International Journal of Urology 2013-09-30

Study Design The results of acute compression on nerve function and morphology were analyzed in a recently developed model for graded cauda equina the dog. Objectives was to better mimic clinical situation association with spinal canal stenosis. Summary Background Data has been induced by metal clips, plastic bands, constrictors, inflatable balloons. No used intact increasing pressure per se canal. Methods An balloon diameter exceeding placed under lamina L7 vertebra inflated various...

10.1097/00007632-199511001-00003 article EN Spine 1995-11-01

A 3.3-V, 1-W, 240-Mbps extended-partial-response maximum-likelihood read/write-channel large-scale-integration chip for hard disk drives has been developed. Power consumption of 1 W was achieved by using a 3.3-V power supply, 0.4-/spl mu/m CMOS process, and analog circuit design. Our approach to achieving high transfer rate 240 Mbps develop an interleaved subranging pipeline lookahead analog/digital (A/D) converter architecture. The this A/D is 200 mW at 255 MHz. read-mode channel path...

10.1109/4.726586 article EN IEEE Journal of Solid-State Circuits 1998-01-01

Study Design Nerve conduction velocity was studied in the dog cauda equina subjected to chronic and, 1 week later, additional acute compression. Objectives To model situation of spinal stenosis by first inducing a controlled, compression injury and then add at various pressure levels already compressed equina. Summary Background Data Previous models on nerve root have analyzed effects only noninjured nerves. Clinically, nerves that are exposed Methods The lumbar spine 10 dogs inflating...

10.1097/00007632-199611150-00003 article EN Spine 1996-11-01

Postural changes and trunk muscle activities were examined in patients with motion-induced intermittent low back pain (MILBP) healthy controls.To assess the ability to maintain an upright standing position.Since MILBP is not observed at rest, its pathophysiology complicated investigate. METHODS.: measured a 3-dimensional motion analyzer, surface electromyography while 10 female average age of 76 years (MILBP group) controls 74 (Control Group) loaded 10-kg weights.In Control Group, no...

10.1097/01.brs.0000252203.16357.9a article EN Spine 2007-01-01
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