Jun Tachikawa
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View article: Parechovirus-A3 Infection in Neonates and Young Infants from the Pre-Coronavirus Disease 2019 Pandemic Period to the Post-Restriction Era from the Pediatric Parechovirus Surveillance Group in Japan
Parechovirus-A3 Infection in Neonates and Young Infants from the Pre-Coronavirus Disease 2019 Pandemic Period to the Post-Restriction Era from the Pediatric Parechovirus Surveillance Group in Japan Open
Background The coronavirus disease 2019 (COVID-19) pandemic affected the epidemiology of community-acquired infectious diseases; however, the data on the effects of the pandemic on parechovirus-A3 (PeV-A3) circulation remain incomplete. Me…
View article: Sustained Maternal Antibodies Against Parechovirus‐A3 During the Coronavirus Disease 2019 Pandemic
Sustained Maternal Antibodies Against Parechovirus‐A3 During the Coronavirus Disease 2019 Pandemic Open
The epidemiology of parechovirus‐A3 (PeV‐A3) infection in neonates and young infants changed during the coronavirus disease 2019 (COVID‐19) pandemic. We hypothesized the pandemic impacted maternal antibodies against PeV‐A3. To test this hy…
View article: P-1210. Resurgence of Parechovirus-A3 Infection in Neonates and Young Infants after the Coronavirus Disease 2019 Pandemic in Japan
P-1210. Resurgence of Parechovirus-A3 Infection in Neonates and Young Infants after the Coronavirus Disease 2019 Pandemic in Japan Open
Background Parechovirus-A (PeV-A), especially PeV-A3, is a common cause of viral sepsis and encephalitis in neonates and young infants (age < 4 months). The strict infection control measures and non-pharmaceutical interventions of the c…
View article: P-1191. Maternal Antibodies Against Parechovirus-A3 Before and During the Coronavirus Disease 2019 Pandemic
P-1191. Maternal Antibodies Against Parechovirus-A3 Before and During the Coronavirus Disease 2019 Pandemic Open
Background Parechovirus-A3 (PeV-A3) is an important emerging virus that causes severe disease in neonates and young infants. The coronavirus disease 2019 (COVID-19) pandemic greatly affected the incidence of infectious diseases, including …
View article: 222. Effectiveness of the Original BNT162b2 Messenger RNA Vaccine Against COVID-19 Omicron Infection in Children Aged 6 Months to 4 Years in Japan
222. Effectiveness of the Original BNT162b2 Messenger RNA Vaccine Against COVID-19 Omicron Infection in Children Aged 6 Months to 4 Years in Japan Open
Background The coronavirus disease 2019 (COVID-19) messenger RNA (mRNA) vaccines were confirmed to be safe and effective, and the original BNT162b2 mRNA vaccine for children aged 6 months to 4 years was introduced in October 2022. However,…
View article: Effectiveness of Strategy-Focused Training in Colorectal Endoscopic Submucosal Dissection: A Retrospective Observational Study
Effectiveness of Strategy-Focused Training in Colorectal Endoscopic Submucosal Dissection: A Retrospective Observational Study Open
Background Colorectal ESD, an advanced minimally invasive treatment, presents technical challenges, with globally varying training methods. We analyzed the learning curve of ESD training, emphasizing preoperative strategies, notably gravit…
View article: Feasibility and Safety of Endoscopic Control for Patients with Serrated Polyposis Syndrome
Feasibility and Safety of Endoscopic Control for Patients with Serrated Polyposis Syndrome Open
Introduction: Despite advances in endoscopic treatment, patients with serrated polyposis syndrome (SPS) occasionally require surgery due to numerous or unresectable polyps, recurrence, and treatment-related adverse events.
View article: Multiple pneumatoceles and lung abscesses caused by early-onset E. coli sepsis in a preterm neonate
Multiple pneumatoceles and lung abscesses caused by early-onset E. coli sepsis in a preterm neonate Open
View article: The feasibility and safety of endoscopic submucosal dissection of gastric lesions larger than 5 cm
The feasibility and safety of endoscopic submucosal dissection of gastric lesions larger than 5 cm Open
View article: Efficacy of under-gel endoscopic mucosal resection method for colonic lesion extending into the diverticulum
Efficacy of under-gel endoscopic mucosal resection method for colonic lesion extending into the diverticulum Open
Underwater endoscopic mucosal resection (EMR) is currently performed in various situations [1] [2] [3] [4]. One advantage to using water is the buoyancy effect on the mucosa, which raises it from the deeper muscularis propria without submu…
View article: Recurrence of gastric cancer caused by implantation of tumor cells after curative endoscopic submucosal dissection
Recurrence of gastric cancer caused by implantation of tumor cells after curative endoscopic submucosal dissection Open
View article: Impact of obesity in colorectal endoscopic submucosal dissection: single-center retrospective cohort study
Impact of obesity in colorectal endoscopic submucosal dissection: single-center retrospective cohort study Open
View article: Successful endoscopic hemostasis with Over-The-Scope Clip for persistent or perforated duodenal ulcer hemorrhaging: Two cases report
Successful endoscopic hemostasis with Over-The-Scope Clip for persistent or perforated duodenal ulcer hemorrhaging: Two cases report Open
出血性十二指腸潰瘍に内視鏡的止血が困難な場合や再発を繰り返す場合，代替治療として血管内治療・手術が検討されるが，全身状態が不安定な症例では代替治療が困難な場合も経験する．今回Over-The-Scope clip（OTSC）により代替治療を回避できた2症例を提示する．症例1：82歳，男性．腎癌術後再発，腎後性腎不全で入院していた．出血性十二指腸潰瘍を認め止血を行うも再出血を繰り返し，6回目の焼灼止血後も再出血を来したためOTSCで潰瘍底を縫縮した．その後再出血せず経過した．…
View article: Endoscopic submucosal tunnel dissection with ring-thread countertraction for a large gastric tumor with extensive severe fibrosis
Endoscopic submucosal tunnel dissection with ring-thread countertraction for a large gastric tumor with extensive severe fibrosis Open
View article: Endoscopic closure using over-the-scope clip for delayed colonic perforation after hybrid endoscopic submucosal dissection
Endoscopic closure using over-the-scope clip for delayed colonic perforation after hybrid endoscopic submucosal dissection Open
A 68-year-old woman was found to have a flat elevated lesion, which was approximately 20 mm in size and located in the hepatic flexure. The patient underwent endoscopic submucosal dissection (ESD) for the lesion, and en bloc resection was …
View article: New inversion method: endoscopic submucosal dissection of a neoplasm extending into a colonic diverticulum
New inversion method: endoscopic submucosal dissection of a neoplasm extending into a colonic diverticulum Open
Endoscopic submucosal dissection (ESD) is an excellent treatment for superficial colorectal neoplasms because it allows en bloc resection, regardless of the lesion size.1Tamegai Y. Saito Y. Masaki N. et al.Endoscopic submucosal dissection:…
View article: Successful 2-channel cold snare polypectomy of a colorectal lesion involving the appendiceal orifice
Successful 2-channel cold snare polypectomy of a colorectal lesion involving the appendiceal orifice Open
Colonic polypectomy is a common procedure with several approaches to remove small polyps.1Moss A. Nalankilli K. Standardisation of polypectomy technique.Best Pract Res Clin Gastroenterol. 2017; 31: 447-453Crossref PubMed Scopus (10) Google…
View article: Double-tunnel method for treatment of colorectal lesions with severe fibrosis with endoscopic submucosal dissection
Double-tunnel method for treatment of colorectal lesions with severe fibrosis with endoscopic submucosal dissection Open
Endoscopic submucosal dissection (ESD) for gastrointestinal lesions enables en bloc resection with tumor-free margins and is not limited by the lesion size or location. However, en bloc removal of colorectal lesions with severe fibrosis is…
View article: Continued Use of a Single Antiplatelet Agent Does Not Increase the Risk of Delayed Bleeding After Colorectal Endoscopic Submucosal Dissection
Continued Use of a Single Antiplatelet Agent Does Not Increase the Risk of Delayed Bleeding After Colorectal Endoscopic Submucosal Dissection Open
Continued administration of antiplatelet agents is not associated with any increase in the risk of delayed bleeding after colorectal ESD. Prospective, randomized studies are necessary to determine whether treatment with antiplatelet agents…
View article: Safety and efficacy of simultaneous colorectal ESD for large synchronous colorectal lesions
Safety and efficacy of simultaneous colorectal ESD for large synchronous colorectal lesions Open
Background and study aims Multiple large colorectal lesions are sometimes diagnosed during colonoscopy. However, there have been no investigations of the feasibility of simultaneous endoscopic submucosal dissection (ESD) for multiple lesio…
View article: A case of fibroepithelial stromal polyp of the anus rapidly increased in size during pregnancy
A case of fibroepithelial stromal polyp of the anus rapidly increased in size during pregnancy Open
A 45-year-old woman at 14th week of pregnancy was admitted our hospital for pain with defecation. Proctoscopy revealed white polyp 20 mm in diameter at the dentate line. The lesion grew to 60 mm and she underwent transanal polyp excision a…