Wataru Hamamoto
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Explore the profile of Wataru Hamamoto including associated specialties, affiliations and a list of published articles.
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20
Citations
75
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Recent Articles
1.
Sakamoto Y, Takeda Y, Yamashita T, Seki Y, Kawahara S, Hirai T, et al.
J Clin Med
. 2024 Sep;
13(18).
PMID: 39336909
: Although peroral cholangioscopy has improved the endoscopic treatment of difficult stones, the treatment of intrahepatic stones remains challenging. The incidence of cholangitis is high when peroral cholangioscopy is used...
2.
Nakada Y, Sugihara T, Tanaka M, Hamamoto W, Kanda T, Sakaguchi T, et al.
Gastroenterology Res
. 2024 May;
17(2):72-81.
PMID: 38716285
Background: Photodynamic therapy (PDT) has advanced through the utilization of photosensitizers and specific-wavelength light (≥ 600 nm). However, the widespread adoption of PDT is still impeded by high equipment costs...
3.
Shimosaka T, Takeda Y, Yamashita T, Seki Y, Kawahara S, Hirai T, et al.
J Clin Med
. 2024 Feb;
13(3).
PMID: 38337514
(1) There is controversy regarding stent placement for unresectable malignant hilar biliary obstruction (UMHBO). We mainly use the partial stent-in-stent (PSIS) method with an uncovered self-expandable metallic stent (UCSEMS) based...
4.
Hamamoto W, Onoyama T, Kawahara S, Sakamoto Y, Koda H, Yamashita T, et al.
J Clin Med
. 2023 Oct;
12(20).
PMID: 37892801
Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) is a common technique for diagnosing pancreatic lesions with high accuracy and a low incidence of procedural adverse events. However, occasional adverse events, particularly bleeding,...
5.
Takeda Y, Matsumoto K, Onoyama T, Yamashita T, Koda H, Hamamoto W, et al.
Diagnostics (Basel)
. 2023 May;
13(9).
PMID: 37174928
Pathological examination by endoscopic ultrasound-fine needle aspiration is not possible in approximately 10% of pancreatic tumor cases. Pancreatic juice cytology (PJC) is considered an alternative diagnostic method. However, its diagnostic...
6.
Koda H, Matsumoto K, Kawata S, Takeda Y, Onoyama T, Seki Y, et al.
J Clin Med
. 2023 Mar;
12(6).
PMID: 36983143
Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is an essential endoscopic tissue sampling method for diagnosing pancreatobiliary diseases; however, determining the presence of target specimens mixed in the blood by conventional...
7.
Okada T, Mikamo T, Hamamoto W, Iwamoto T, Okamoto T, Maeda K, et al.
Cancers (Basel)
. 2022 Nov;
14(22).
PMID: 36428648
This study constructed a simplified post-endoscopic submucosal dissection (ESD) prediction model with a prognostic nutritional index (PNI). A total of 449 patients who underwent gastric ESD was included, divided with...
8.
Sakamoto Y, Takeda Y, Seki Y, Kawahara S, Shimosaka T, Hamamoto W, et al.
J Clin Med
. 2022 Nov;
11(21).
PMID: 36362652
Peroral cholangioscopy (POCS) is believed to be effective in treating intrahepatic stones; however, reports on its efficacy are few. We reviewed the results of intrahepatic stones treated with fluoroscopic guidance...
9.
Edano M, Kanda T, Tarumoto R, Hamamoto W, Hasegawa T, Mae Y, et al.
Photodiagnosis Photodyn Ther
. 2022 Aug;
40:103090.
PMID: 36031142
Photodynamic therapy (PDT) induces cancer cell death by generating reactive oxygen species (ROS). In this process, photosensitizers accumulate in cancer cells irradiated by laser light of a specific wavelength, leading...
10.
Onoyama T, Koda H, Hamamoto W, Kawahara S, Sakamoto Y, Yamashita T, et al.
World J Gastroenterol
. 2022 Jun;
28(19):2034-2056.
PMID: 35664035
The coronavirus disease 2019 (COVID-19) is known to cause gastrointestinal symptoms. Recent studies have revealed COVID-19-attributed acute pancreatitis (AP). However, clinical characteristics of COVID-19-attributed AP remain unclear. We performed a...