1.Novel technique for endoscopic ultrasound-guided gallbladder drainage to skip the needle tract dilation step: Efficacy of a 6-mm antimigration metal stent with a thin, tapered delivery catheter
Keiichi HATAMARU ; Masayuki KITANO ; Masahiro ITONAGA ; Yasunobu YAMASHITA ; Takashi TAMURA ; Yuki KAWAJI ; Junya NUTA
International Journal of Gastrointestinal Intervention 2025;14(1):9-14
Background:
Endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) has been recognized as an effective treatment for patients at high risk for surgery. An antimigration metal stent with tapered thin delivery system has recently been developed. The aims of this study were to evaluate the feasibility, safety, and longterm outcomes of EUS-GBD using the new metal stent.
Methods:
Between April 2017 and March 2020, 21 patients with acute cholecystitis unsuitable for cholecystectomy underwent EUS-GBD using the metal stent. The stent was 6 mm in diameter and 6 cm in length, with a large flare at both ends for antimigration, and mounted in a 7.5 Fr delivery catheter, which requires no dilation devices. We retrospectively evaluated clinical and technical success, adverse events, and stent patency.
Results:
The technical and clinical success rates of EUS-GBD using the metal stent were 95.2% and 100%, respectively. For 75% of the patients, metal stents could be placed without dilatation of the needle tract. These patients had significantly shorter procedure time (23.6 ± 9.8 min) than patients requiring needle tract dilatation (38.4 ± 17.1 min; P = 0.036). The median follow-up periods were 336 days (interquartile range [IQR] 152–919 days) and 1,135 days (IQR 1,009–1,675 days) for all and alive patients, respectively. No adverse events or recurrence of cholecystitis due to stent occlusion that occurred in any patient at follow-up was observed.
Conclusion
In conclusion, EUS-GBD using the newly designed metal stent showed excellent safety and longterm outcomes, and may be suitable as an alternative treatment in patients who are unsuitable for cholecystectomy.
2.Novel technique for endoscopic ultrasound-guided gallbladder drainage to skip the needle tract dilation step: Efficacy of a 6-mm antimigration metal stent with a thin, tapered delivery catheter
Keiichi HATAMARU ; Masayuki KITANO ; Masahiro ITONAGA ; Yasunobu YAMASHITA ; Takashi TAMURA ; Yuki KAWAJI ; Junya NUTA
International Journal of Gastrointestinal Intervention 2025;14(1):9-14
Background:
Endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) has been recognized as an effective treatment for patients at high risk for surgery. An antimigration metal stent with tapered thin delivery system has recently been developed. The aims of this study were to evaluate the feasibility, safety, and longterm outcomes of EUS-GBD using the new metal stent.
Methods:
Between April 2017 and March 2020, 21 patients with acute cholecystitis unsuitable for cholecystectomy underwent EUS-GBD using the metal stent. The stent was 6 mm in diameter and 6 cm in length, with a large flare at both ends for antimigration, and mounted in a 7.5 Fr delivery catheter, which requires no dilation devices. We retrospectively evaluated clinical and technical success, adverse events, and stent patency.
Results:
The technical and clinical success rates of EUS-GBD using the metal stent were 95.2% and 100%, respectively. For 75% of the patients, metal stents could be placed without dilatation of the needle tract. These patients had significantly shorter procedure time (23.6 ± 9.8 min) than patients requiring needle tract dilatation (38.4 ± 17.1 min; P = 0.036). The median follow-up periods were 336 days (interquartile range [IQR] 152–919 days) and 1,135 days (IQR 1,009–1,675 days) for all and alive patients, respectively. No adverse events or recurrence of cholecystitis due to stent occlusion that occurred in any patient at follow-up was observed.
Conclusion
In conclusion, EUS-GBD using the newly designed metal stent showed excellent safety and longterm outcomes, and may be suitable as an alternative treatment in patients who are unsuitable for cholecystectomy.
3.Novel technique for endoscopic ultrasound-guided gallbladder drainage to skip the needle tract dilation step: Efficacy of a 6-mm antimigration metal stent with a thin, tapered delivery catheter
Keiichi HATAMARU ; Masayuki KITANO ; Masahiro ITONAGA ; Yasunobu YAMASHITA ; Takashi TAMURA ; Yuki KAWAJI ; Junya NUTA
International Journal of Gastrointestinal Intervention 2025;14(1):9-14
Background:
Endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) has been recognized as an effective treatment for patients at high risk for surgery. An antimigration metal stent with tapered thin delivery system has recently been developed. The aims of this study were to evaluate the feasibility, safety, and longterm outcomes of EUS-GBD using the new metal stent.
Methods:
Between April 2017 and March 2020, 21 patients with acute cholecystitis unsuitable for cholecystectomy underwent EUS-GBD using the metal stent. The stent was 6 mm in diameter and 6 cm in length, with a large flare at both ends for antimigration, and mounted in a 7.5 Fr delivery catheter, which requires no dilation devices. We retrospectively evaluated clinical and technical success, adverse events, and stent patency.
Results:
The technical and clinical success rates of EUS-GBD using the metal stent were 95.2% and 100%, respectively. For 75% of the patients, metal stents could be placed without dilatation of the needle tract. These patients had significantly shorter procedure time (23.6 ± 9.8 min) than patients requiring needle tract dilatation (38.4 ± 17.1 min; P = 0.036). The median follow-up periods were 336 days (interquartile range [IQR] 152–919 days) and 1,135 days (IQR 1,009–1,675 days) for all and alive patients, respectively. No adverse events or recurrence of cholecystitis due to stent occlusion that occurred in any patient at follow-up was observed.
Conclusion
In conclusion, EUS-GBD using the newly designed metal stent showed excellent safety and longterm outcomes, and may be suitable as an alternative treatment in patients who are unsuitable for cholecystectomy.
4.What are the FIM Sub-items Related to Institutionalization in Patients With Disuse Syndrome?
Ayano MOMOSE ; Naoko USHIYAMA ; Yasushi KUROBE ; Junya TAMURA ; Kimito MOMOSE
Journal of the Japanese Association of Rural Medicine 2019;68(4):443-449
The objective of this study was to determine whether a decrease in the score for any of the Functional Independence Measure (FIM) domains at discharge compared to before admission (decreased FIM) is associated with increased risk of facility admission. Patients were divided into those discharged to a care facility (facility group) and those discharged home (home group). Patients in the home group were selected so as to match those in the facility group. A total of 36 patients were included in each group. Mean ages of patients in the home and facility groups were 88.9 ± 7.9 and 89.1 ± 7.6 years, respectively, and mean pre-admission total FIM scores were 77.1 ± 29.8 and 78.5 ± 30.3, respectively. When each FIM subdomain was examined for correlation between decreased score and post-discharge destination, bowel management (odds ratio, 4.5), bladder management (3.9), social interaction (3.5), problem solving (3.5), and walking (2.5) were identified as being significantly associated with increased risk of facility admission. A limitation was that this study did not consider the care-giving capacity of families. Further studies are needed to identify additional potential factors affecting post-discharge destination, including care-giving capacity of families and other social factors.
5.Utility of Elastography with Endoscopic Ultrasonography Shear-Wave Measurement for Diagnosing Chronic Pancreatitis
Yasunobu YAMASHITA ; Kensuke TANIOKA ; Yuki KAWAJI ; Takashi TAMURA ; Junya NUTA ; Keiichi HATAMARU ; Masahiro ITONAGA ; Takeichi YOSHIDA ; Yoshiyuki IDA ; Takao MAEKITA ; Mikitaka IGUCHI ; Masayuki KITANO
Gut and Liver 2020;14(5):659-664
Background/Aims:
Rosemont classification (RC) with en-doscopic ultrasonography (EUS) is important for diagnosing chronic pancreatitis (CP) but is based only on subjective judgement. EUS shear wave measurement (EUS-SWM) is a precise modality based on objective judgment, but its usefulness has not been extensively studied yet. This study evaluated the utility of EUS-SWM for diagnosing CP and esti-mating CP severity by determining the presence of endocrine dysfunction along with diabetes mellitus (DM).
Methods:
Between June 2018 and December 2018, 52 patients who underwent EUS and EUS-SWM were classified into two groups according to RC: non-CP (indeterminate CP and normal) and CP (consistent and suggestive of CP). The EUSSWM value by shear wave velocity was evaluated with a me-dian value. The EUS-SWM value was compared with RC and the number of EUS features. The diagnostic accuracy and cutoff value of EUS-SWM for CP and DM and its sensitivity and specificity were calculated.
Results:
The EUS-SWM value significantly positively correlated with the RC and the number of EUS features. The EUS-SWM values that were consistent and suggestive of CP were significantly higher than that of normal. The area under the receiver operating characteristic (AUROC) curve for the diagnostic accuracy of EUS-SWM for CP was 0.97. The cutoff value of 2.19 had 100% sensitivity and 94% specificity. For endocrine dysfunction in CP, the AUROC was 0.75. The cutoff value of 2.78 had 70% sensitiv-ity and 56% specificity.
Conclusions
EUS-SWM provides an objective assessment and can be an alternative diagnostic tool for diagnosing CP. EUS-SWM may also be useful for pre-dicting the presence of endocrine dysfunction.