Publications by authors named "Arahata K"

We describe a case of gastric granular cell tumor (GCT) treated with laparoscopic and endoscopic cooperative surgery (LECS). A 30-year-old male was referred to our hospital for the investigation of a subepithelial lesion (SEL). Contrast-enhanced computed tomography and esophagogastroduodenoscopy revealed a 15 mm SEL within the posterior wall of the gastric body.

View Article and Find Full Text PDF

Background: Omental artery aneurysm (OAA) is an extremely rare visceral artery aneurysm. Ruptured OAAs are associated with a high mortality rate. Transcatheter arterial embolization (TAE) has been used to treat OAA in recent years.

View Article and Find Full Text PDF

Sigmoid diverticulitis can potentially lead to the development of pelvic abscesses. Mortality rate from intra-abdominal abscesses is as high as 35%, and patients with diverticulitis complicated by an abscess are at a high risk of recurrent diverticulitis. Recently, image-guided drainage has been performed using computed tomography or ultrasonography for the treatment of pelvic abscesses.

View Article and Find Full Text PDF

It has been shown that ideas of reference in the context of paranoia (IoR-P) and schizophrenia spectrum disorders (IoR-S) are caused by different psychological constructs. Although it is well known that both IoR-P and IoR-S are frequently evoked during the same period of life, how they interact with each other is unknown. The purpose of the present study was to develop the Japanese version of the Referential Thinking Scale (J-REF) to assess IoR-S, examine its validity and reliability, and explore the predictors of IoR-P and IoR-S.

View Article and Find Full Text PDF
Article Synopsis
  • A case of early gastric cancer that mimicked a subepithelial lesion was diagnosed using endoscopic ultrasound-guided fine needle aspiration in a 55-year-old woman.
  • Diagnostic imaging revealed multiple subepithelial lesions, and further evaluation suggested possible partial invasion of cancerous cells.
  • The patient underwent surgery, which confirmed the diagnosis and showed no signs of recurrence after 10 months, highlighting the importance of EUS for early detection and intervention of similar conditions.
View Article and Find Full Text PDF

Simple objective modalities are required for evaluating suspected autoimmune gastritis (AIG). This cross-sectional study aimed to examine whether pepsinogen, gastrin, and endoscopic findings can predict AIG. The diagnostic performance of endoscopic findings and serology in distinguishing AIG was evaluated.

View Article and Find Full Text PDF

Highlight Nakamura and colleagues report a case of successful stent placement for biloma through a migrated EUS-guided hepaticogastrostomy stent, using a dual-channel endoscope and the hairpin guidewire technique. This method enables biliary drainage as a potential rescue technique for EUS-guided hepaticogastrostomy stent obstruction with a long metallic stent in the stomach.

View Article and Find Full Text PDF

Individuals with chronic atrophic gastritis who are negative for active H. pylori infection with no history of eradication therapy have been identified in clinical practice. By excluding false-negative and autoimmune gastritis cases, it can be surmised that most of these patients have experienced unintentional eradication of H.

View Article and Find Full Text PDF

Objective: To evaluate the usefulness of a training program on endoscopic head and neck surveillance for beginner endoscopists.

Methods: This prospective multicenter study included 13 beginner endoscopists from 10 institutions who received training in systematic observation techniques and diagnostic criteria, and the training involved hands-on learning. Between May 2016 and February 2017, enrolled patients with current or previously diagnosed esophageal squamous cell carcinomas underwent head and neck surveillance using narrow band imaging (NBI) endoscopy, and histologically confirmed head and neck squamous cell carcinoma (HNSCC) detection rates, endoscopic image quality, and examination times were compared before (group A) and after (group B) the training program.

View Article and Find Full Text PDF

The neural mechanisms of psychiatric diseases like autism spectrum disorder and schizophrenia have been intensively studied, and a number of candidate genes have been identified. However, the relationship between genes and neural system functioning remains unclear. Model organisms may serve as a powerful tool for addressing this question due to the availability of established genetic tools.

View Article and Find Full Text PDF

We report an aggressive case of polymicrobial bacteremia in a patient with renal pelvis carcinoma. A 76-year-old man developed watery diarrhea after undergoing chemotherapy. He became unconscious and went into shock.

View Article and Find Full Text PDF

Backgrounds/aims: In the ABC method, which is a method for risk stratification of gastric cancer using serum anti-Helicobacter pylori antibody and pepsinogen (PG) test, subjects with normal PG and seronegative for H. pylori are named as "Group A" and are regarded as having a low risk of gastric cancer. These "Group A" subjects include unintentionally eradicated cases at relatively high risk, and this study aimed to identify these subjects.

View Article and Find Full Text PDF

Objectives: Several clinical factors; overweight, male gender and increasing age, have been implicated as the etiology of hiatal hernia. Esophageal shortening due to acid perfusion in the lower esophagus has been suggested as the etiological mechanism. However, little is known about the correlation between gastric acidity and sliding hiatus hernia formation.

View Article and Find Full Text PDF

A cystic artery aneurysm is a rare cause of hemobilia. Herein, we report two cases of acute cholecystitis with a ruptured cystic artery pseudoaneurysm. Two patients (a 69-year-old man and an 83-year-old man) were admitted to our hospital because of acute cholecystitis with gallstone impaction in the neck.

View Article and Find Full Text PDF

Background/aim: Individuals negative for Helicbacter pylori antibody and with a normal pepsinogen test (group A) are regarded as being at low risk in serum gastric cancer screening known as the ABC method, and endoscopy is not recommended; however, this group may include 2-10% of gastric cancer cases.

Patients And Methods: A total of 345 individuals who underwent upper gastrointestinal endoscopy and were classified by ABC as group A (H. pylori antibody titer <10 U/ml, and pepsinogen-I >70 ng/ml or I/II ratio >3) were enrolled, and predictors of gastric neoplasia were investigated.

View Article and Find Full Text PDF

There is little evidence that home-based muscle training through exercise improves the muscle strength and QoL of elderly osteoporotic women. The efficacy of home-based daily exercise on muscle strength of the upper and lower extremities and QoL were examined in elderly osteoporotic women by means of a case-controlled study that was designed and conducted between 2005 and 2006. Sixty-three osteoporotic women over 60 years of age were randomly assigned to 12 months of muscle exercise or to no intervention.

View Article and Find Full Text PDF

Physiological parameters such as blood pressure (BP) and heart rate (HR) reflect autonomic response after seizure and may correlate with therapeutic efficacy in electroconvulsive therapy (ECT). However, the literature has been inconclusive with regard to the relationship between the effectiveness of ECT and physiological markers without atropine. In a consecutive sample of 24 patients with a drug-resistant major depressive episode who underwent modified sine or pulse wave ECT without atropine, the correlation was examined between BP and HR before, and 2 min after electrical stimulation and therapeutic efficacy on depressive symptoms.

View Article and Find Full Text PDF

The ataxic mouse rolling Nagoya (RN) carries a missense mutation in the Cacna1a gene, encoding the pore-forming subunit of neuronal Ca(v)2.1 (P/Q-type) Ca2+ channels. Besides being the predominant type of Ca(v) channel in the cerebellum, Ca(v)2.

View Article and Find Full Text PDF

Ictal electroencephalography (EEG) parameters in electroconvulsive therapy (ECT) for depression reportedly correlate with therapeutic response and stimulus dosage, particularly in right unilateral (RUL) ECT. The authors examined ictal EEG parameters as predictors of therapeutic effectiveness in bilateral (BL) sine and pulse wave ECT. A total of 30 consecutive depressed inpatients who had not responded to standard pharmacotherapy were treated using BL ECT given in either sine or pulse wave mode.

View Article and Find Full Text PDF