1.Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections
Shigeru NISHIYAMA ; Takeshi HISA ; Aki EGO ; Shogo SAKATA ; Yui ITO ; Akiharu KUDO ; Takahiro YAMADA ; Shozo OSERA ; Hideki FUKUSHIMA ; Shunta ISHIZAKI ; Ryoga HAMURA ; Masashi TSUNEMATSU ; Kyohei ABE ; Yoshihiro SHIRAI ; Shinji ONDA
International Journal of Gastrointestinal Intervention 2025;14(1):15-19
Background:
Endoscopic ultrasound-guided drainage (EUSD) is an effective treatment for postoperative pancreatic fluid collections (POPFCs); however, standards regarding stents used for EUSD have not been established. This study analyzed the outcomes of EUSD of POPFCs at our hospital and examined the safety and effectiveness of plastic stents/tubes.
Methods:
This retrospective, single-center study focused on EUSD of POPFCs performed at our hospital. We examined the rates of technical success, clinical success, adverse events, and recurrence.
Results:
Twenty-seven patients were included in this study. The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. Fourteen of the 19 patients with one NPT and one DPS improved, but five patients required additional interventions and improved with fistula site dilation. Although recurrence occurred in one patient, improvement was achieved with second EUSD. Early adverse events comprised one case of bleeding for which hemostasis was achieved by performing coil embolization. Late adverse events comprised three cases of DPS migration; however, no additional intervention was required.
Conclusion
The use of plastic tubes/stents is safe and effective for EUSD of POPFCs.
2.Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections
Shigeru NISHIYAMA ; Takeshi HISA ; Aki EGO ; Shogo SAKATA ; Yui ITO ; Akiharu KUDO ; Takahiro YAMADA ; Shozo OSERA ; Hideki FUKUSHIMA ; Shunta ISHIZAKI ; Ryoga HAMURA ; Masashi TSUNEMATSU ; Kyohei ABE ; Yoshihiro SHIRAI ; Shinji ONDA
International Journal of Gastrointestinal Intervention 2025;14(1):15-19
Background:
Endoscopic ultrasound-guided drainage (EUSD) is an effective treatment for postoperative pancreatic fluid collections (POPFCs); however, standards regarding stents used for EUSD have not been established. This study analyzed the outcomes of EUSD of POPFCs at our hospital and examined the safety and effectiveness of plastic stents/tubes.
Methods:
This retrospective, single-center study focused on EUSD of POPFCs performed at our hospital. We examined the rates of technical success, clinical success, adverse events, and recurrence.
Results:
Twenty-seven patients were included in this study. The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. Fourteen of the 19 patients with one NPT and one DPS improved, but five patients required additional interventions and improved with fistula site dilation. Although recurrence occurred in one patient, improvement was achieved with second EUSD. Early adverse events comprised one case of bleeding for which hemostasis was achieved by performing coil embolization. Late adverse events comprised three cases of DPS migration; however, no additional intervention was required.
Conclusion
The use of plastic tubes/stents is safe and effective for EUSD of POPFCs.
3.Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections
Shigeru NISHIYAMA ; Takeshi HISA ; Aki EGO ; Shogo SAKATA ; Yui ITO ; Akiharu KUDO ; Takahiro YAMADA ; Shozo OSERA ; Hideki FUKUSHIMA ; Shunta ISHIZAKI ; Ryoga HAMURA ; Masashi TSUNEMATSU ; Kyohei ABE ; Yoshihiro SHIRAI ; Shinji ONDA
International Journal of Gastrointestinal Intervention 2025;14(1):15-19
Background:
Endoscopic ultrasound-guided drainage (EUSD) is an effective treatment for postoperative pancreatic fluid collections (POPFCs); however, standards regarding stents used for EUSD have not been established. This study analyzed the outcomes of EUSD of POPFCs at our hospital and examined the safety and effectiveness of plastic stents/tubes.
Methods:
This retrospective, single-center study focused on EUSD of POPFCs performed at our hospital. We examined the rates of technical success, clinical success, adverse events, and recurrence.
Results:
Twenty-seven patients were included in this study. The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. Fourteen of the 19 patients with one NPT and one DPS improved, but five patients required additional interventions and improved with fistula site dilation. Although recurrence occurred in one patient, improvement was achieved with second EUSD. Early adverse events comprised one case of bleeding for which hemostasis was achieved by performing coil embolization. Late adverse events comprised three cases of DPS migration; however, no additional intervention was required.
Conclusion
The use of plastic tubes/stents is safe and effective for EUSD of POPFCs.
4.Simultaneous quantification of pyrethroid metabolites in urine of non-toilet-trained children in Japan.
Jun UEYAMA ; Yuki ITO ; Risa HAMADA ; Naoko OYA ; Sayaka KATO ; Taro MATSUKI ; Hazuki TAMADA ; Kayo KANEKO ; Shinji SAITOH ; Mayumi SUGIURA-OGASAWARA ; Takeshi EBARA ; Michihiro KAMIJIMA
Environmental Health and Preventive Medicine 2022;27(0):25-25
BACKGROUND:
Pyrethroid (PYR) insecticides are widely used for controlling various pests. There are two types that differ in terms of usage: agricultural-purpose PYR (agriculture-PYR) and hygiene purpose PYR (hygiene-PYRs). Few studies exist on the exposure to these chemicals in small children. In this study, we conducted biomonitoring of urinary pyrethroid metabolites in 1.5-year-old children throughout the year.
METHODS:
Study subjects were 1075 children participating in an Aichi regional sub-cohort of the Japan Environment and Children's Study as of 18-month health check-up. The concentrations of four specific hygiene-PYR metabolites including 2,3,5,6-tetrafluoro-1,4-benzenedimethanol (HOCH2-FB-Al), and five common metabolites of hygiene- and agriculture-PYRs including 3-phenoxybenzoic acid (3PBA) and cis- and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid (DCCA), were measured in urine samples extracted from soiled diapers using a triple quadrupole gas chromatograph-mass spectrometer.
RESULTS:
The highest detection frequencies were for 3PBA, followed by DCCA, 1R-trans-chrysanthemum dicarboxylic acid, and HOCH2-FB-Al. Among the six metabolites, urinary concentrations were seasonally varied. However, this variation was not observed in the most studied PYR metabolite, 3PBA. Spearman's correlation analysis demonstrated a significant positive correlation between FB-Al and DCCA (r = 0.56) and HOCH2-FB-Al and 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl alcohol (r = 0.60).
CONCLUSIONS
This biomonitoring survey found widespread and seasonally specific exposure to multiple hygiene- and agriculture-PYRs in 1.5-year-old Japanese children.
Agriculture
;
Child, Preschool
;
Environmental Exposure/analysis*
;
Humans
;
Infant
;
Insecticides
;
Japan
;
Mass Spectrometry
;
Pyrethrins/urine*
5.Prognostication of early-onset endometrioid endometrial cancer based on genome-wide DNA methylation profiles
Takuro HIRANO ; Eri ARAI ; Mao FUJIMOTO ; Yuji NAKAYAMA ; Ying TIAN ; Nanako ITO ; Takeshi MAKABE ; Wataru YAMAGAMI ; Nobuyuki SUSUMU ; Daisuke AOKI ; Yae KANAI
Journal of Gynecologic Oncology 2022;33(6):e74-
Objective:
The aim of this study was to establish criteria that would indicate whether fertility preservation therapy would likely be safe for patients aged 40 years or less with endometrioid endometrial cancer based on their DNA methylation profile.
Methods:
Forty-nine fresh-frozen tissue samples from patients with endometrial cancer from an initial cohort and 31 formalin-fixed paraffin-embedded tissue samples from a second cohort were subjected to genome-wide DNA methylation analysis using the Infinium MethylationEPIC BeadChip.
Results:
Epigenomic clustering of early-onset endometrial cancer was correlated with the widely used recurrence risk classification. Genes showing differences in DNA methylation levels between the low-recurrence-risk category and intermediate- and high-risk categories were accumulated in pathways related to fibroblast growth factor and nuclear factor-κB signaling. DNA hypomethylation and overexpression of ZBTB38 were frequently observed in the low-risk category. Eight hundred thirty-one marker CpG probes showed area under the curve values of >0.7 on the receiver operating characteristic curve for discrimination of patients belonging to the low-risk category. By combining marker CpG sites, seven panels for placing patients into the low-risk category with 91.3% or more sensitivity and specificity in both the initial and second cohorts were established.
Conclusions
DNA methylation diagnostics criteria using up to 6 of 8 CpG sites for LPP, FOXO1, RNF4, EXOC6B, CCPG1, RREB1 and ZBTB38 may be applicable to recurrence risk estimation for patients aged 40 years or less with endometrial cancer, regardless of tumor cell content, even if formalin-fixed paraffin-embedded biopsy or curettage materials are used.
6.Hokkaido birth cohort study on environment and children's health: cohort profile 2021.
Reiko KISHI ; Atsuko IKEDA-ARAKI ; Chihiro MIYASHITA ; Sachiko ITOH ; Sumitaka KOBAYASHI ; Yu AIT BAMAI ; Keiko YAMAZAKI ; Naomi TAMURA ; Machiko MINATOYA ; Rahel Mesfin KETEMA ; Kritika POUDEL ; Ryu MIURA ; Hideyuki MASUDA ; Mariko ITOH ; Takeshi YAMAGUCHI ; Hisanori FUKUNAGA ; Kumiko ITO ; Houman GOUDARZI
Environmental Health and Preventive Medicine 2021;26(1):59-59
BACKGROUND:
The Hokkaido Study on Environment and Children's Health is an ongoing study consisting of two birth cohorts of different population sizes: the Sapporo cohort and the Hokkaido cohort. Our primary objectives are to (1) examine the effects that low-level environmental chemical exposures have on birth outcomes, including birth defects and growth retardation; (2) follow the development of allergies, infectious diseases, and neurobehavioral developmental disorders, as well as perform a longitudinal observation of child development; (3) identify high-risk groups based on genetic susceptibility to environmental chemicals; and (4) identify the additive effects of various chemicals, including tobacco.
METHODS:
The purpose of this report is to provide an update on the progress of the Hokkaido Study, summarize recent results, and suggest future directions. In particular, this report provides the latest details from questionnaire surveys, face-to-face examinations, and a collection of biological specimens from children and measurements of their chemical exposures.
RESULTS:
The latest findings indicate different risk factors of parental characteristics on birth outcomes and the mediating effect between socioeconomic status and children that are small for the gestational age. Maternal serum folate was not associated with birth defects. Prenatal chemical exposure and smoking were associated with birth size and growth, as well as cord blood biomarkers, such as adiponectin, leptin, thyroid, and reproductive hormones. We also found significant associations between the chemical levels and neuro development, asthma, and allergies.
CONCLUSIONS
Chemical exposure to children can occur both before and after birth. Longer follow-up for children is crucial in birth cohort studies to reinforce the Developmental Origins of Health and Disease hypothesis. In contrast, considering shifts in the exposure levels due to regulation is also essential, which may also change the association to health outcomes. This study found that individual susceptibility to adverse health effects depends on the genotype. Epigenome modification of DNA methylation was also discovered, indicating the necessity of examining molecular biology perspectives. International collaborations can add a new dimension to the current knowledge and provide novel discoveries in the future.
Biomarkers/blood*
;
Child
;
Child Health
;
Child, Preschool
;
Cohort Studies
;
Environmental Exposure/adverse effects*
;
Environmental Health
;
Environmental Pollutants/adverse effects*
;
Female
;
Fetal Blood/chemistry*
;
Follow-Up Studies
;
Growth/drug effects*
;
Humans
;
Hypersensitivity/etiology*
;
Infant
;
Japan/epidemiology*
;
Male
;
Neurodevelopmental Disorders/etiology*
;
Pregnancy
;
Prenatal Exposure Delayed Effects/etiology*
;
Prevalence
;
Smoking/adverse effects*
7.Safety and Recipient Satisfaction of Propofol Sedation in Outpatient Endoscopy: A 24-Hour Prospective Investigation Using a Questionnaire Survey
Yoshihide KANNO ; Tetsuya OHIRA ; Yoshihiro HARADA ; Shinsuke KOSHITA ; Takahisa OGAWA ; Hiroaki KUSUNOSE ; Yoshiki KOIKE ; Taku YAMAGATA ; Toshitaka SAKAI ; Kaori MASU ; Keisuke YONAMINE ; Kazuaki MIYAMOTO ; Megumi TANAKA ; Tomohiro SHIMADA ; Fumisato KOZAKAI ; Kazuki ENDO ; Haruka OKANO ; Daichi KOMABAYASHI ; Takeshi SHIMIZU ; Shohei SUZUKI ; Kei ITO
Clinical Endoscopy 2021;54(3):340-347
Background/Aims:
The aim of this study was to evaluate the safety of sedation with propofol as an alternative to benzodiazepine drugs in outpatient endoscopy.
Methods:
In this prospective study, examinees who underwent outpatient endoscopy under propofol sedation and submitted a nextday questionnaire with providing informed consent were evaluated. Periprocedural acute responses, late adverse events within 24 hours, and examinee satisfaction were evaluated.
Results:
Among the 4,122 patients who received propofol in the 17,978 outpatient-based endoscopic examinations performed between November 2016 and March 2018, 2,305 eligible examinees (esophagogastroduodenoscopy for 1,340, endoscopic ultrasonography for 945, and total colonoscopy for 20) were enrolled, and their responses to a questionnaire were analyzed. The mean propofol dose was 69.6±24.4 mg (range, 20–200 mg). Diazepam, midazolam, and/or pentazocine in combination with propofol was administered to 146 examinees. Mild oxygen desaturation was observed in 59 examinees (2.6%); and mild bradycardia, in 2 (0.09%). Other severe reactions or late events did not occur. After eliminating 181 invalid responses, 97.7% (2,065/2,124) of the patients desired propofol sedation in future examinations.
Conclusions
Propofol sedation was found to be safe—without severe adverse events or accidents—for outpatient endoscopy on the basis of the patients’ next-day self-evaluation. Given the high satisfaction level, propofol sedation might be an ideal tool for painless endoscopic screening.
8.Safety and Recipient Satisfaction of Propofol Sedation in Outpatient Endoscopy: A 24-Hour Prospective Investigation Using a Questionnaire Survey
Yoshihide KANNO ; Tetsuya OHIRA ; Yoshihiro HARADA ; Shinsuke KOSHITA ; Takahisa OGAWA ; Hiroaki KUSUNOSE ; Yoshiki KOIKE ; Taku YAMAGATA ; Toshitaka SAKAI ; Kaori MASU ; Keisuke YONAMINE ; Kazuaki MIYAMOTO ; Megumi TANAKA ; Tomohiro SHIMADA ; Fumisato KOZAKAI ; Kazuki ENDO ; Haruka OKANO ; Daichi KOMABAYASHI ; Takeshi SHIMIZU ; Shohei SUZUKI ; Kei ITO
Clinical Endoscopy 2021;54(3):340-347
Background/Aims:
The aim of this study was to evaluate the safety of sedation with propofol as an alternative to benzodiazepine drugs in outpatient endoscopy.
Methods:
In this prospective study, examinees who underwent outpatient endoscopy under propofol sedation and submitted a nextday questionnaire with providing informed consent were evaluated. Periprocedural acute responses, late adverse events within 24 hours, and examinee satisfaction were evaluated.
Results:
Among the 4,122 patients who received propofol in the 17,978 outpatient-based endoscopic examinations performed between November 2016 and March 2018, 2,305 eligible examinees (esophagogastroduodenoscopy for 1,340, endoscopic ultrasonography for 945, and total colonoscopy for 20) were enrolled, and their responses to a questionnaire were analyzed. The mean propofol dose was 69.6±24.4 mg (range, 20–200 mg). Diazepam, midazolam, and/or pentazocine in combination with propofol was administered to 146 examinees. Mild oxygen desaturation was observed in 59 examinees (2.6%); and mild bradycardia, in 2 (0.09%). Other severe reactions or late events did not occur. After eliminating 181 invalid responses, 97.7% (2,065/2,124) of the patients desired propofol sedation in future examinations.
Conclusions
Propofol sedation was found to be safe—without severe adverse events or accidents—for outpatient endoscopy on the basis of the patients’ next-day self-evaluation. Given the high satisfaction level, propofol sedation might be an ideal tool for painless endoscopic screening.


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