1.Follow-up computed tomography can prevent stent migration after endoscopic ultrasound-guided hepaticogastrostomy
Yasuhiro KOMORI ; Akihisa OHNO ; Nao FUJIMORI ; Kazuhide MATSUMOTO ; Keijiro UEDA ; Kazuki TAKEISHI ; Tomoharu YOSHIZUMI ; Yoshihiro OGAWA
International Journal of Gastrointestinal Intervention 2025;14(1):35-38
A 61-year-old man with obstructive jaundice caused by distal bile duct cancer recurrence was admitted to our hospital. As treatment, we performed endoscopic ultrasound-guided hepaticogastrostomy and placed a self-expanding metal stent. Computed tomography was performed immediately after the procedure to ensure proper stent placement. Although repeat imaging the next day revealed that the stent on the hepaticogastrostomy route had shortened, the stent on the gastric side maintained sufficient length. However, 11 days after the procedure, the stomach-to-liver distance had increased, and the stent on the gastric side was significantly shortened. Endoscopic imaging revealed that the stent had almost migrated, and we added a fully covered self-expanding metal stent into the previous metallic stent via the hepaticogastrostomy route. The patient was discharged 19 days after the initial procedure without complications. Computed tomography performed 40 days after the hepaticogastrostomy revealed that the initial stent had migrated into the abdominal cavity, but the second stent was in an appropriate position. In conclusion, repeated monitoring by computed tomography after hepaticogastrostomy procedure may be an effective method for preventing stent migration in high-risk cases.
2.Becoming an Independent Cardiovascular Surgeon―10 Years Later
Hideyasu UEDA ; Daisuke TORITSUKA ; Yuji NAKAMURA ; Yusuke IMAEDA ; Toshihiko NISHI ; Keita YANO ; Saki BESSHO ; Kohei KITAMURA ; Naohiro AKITA ; Kazuki MATSUHASHI
Japanese Journal of Cardiovascular Surgery 2024;53(4):4-U1-4-U5
The U-40 generation of cardiovascular surgeons is receiving training as cardiovascular surgeons, including daily surgeries, ward responsibilities and other important tasks, young surgeons are on their way to becoming skilled cardiovascular specialists. However, it is said that it takes a long time to become a full-fledged surgeon, and in particular, the way to becoming a full-fledged cardiovascular surgeon varies greatly among individuals and is not standardized. Therefore, the U-40 generation is always concerned and worried about their future career development. At the 54th Annual Meeting of the Japanese Society for Cardiovascular Surgery, we will discuss what the U-40 generation needs to become full-fledged surgeons, what they are worried about, and how their seniors who are actually active as independent cardiovascular surgeons think and what their career paths have been like. I had an opportunity to reflect on the gap between the two. This time, we conducted a questionnaire survey to visualize the conditions and future prospects for becoming an independent surgeon as considered by the U-40 generation.
3.Follow-up computed tomography can prevent stent migration after endoscopic ultrasound-guided hepaticogastrostomy
Yasuhiro KOMORI ; Akihisa OHNO ; Nao FUJIMORI ; Kazuhide MATSUMOTO ; Keijiro UEDA ; Kazuki TAKEISHI ; Tomoharu YOSHIZUMI ; Yoshihiro OGAWA
International Journal of Gastrointestinal Intervention 2025;14(1):35-38
A 61-year-old man with obstructive jaundice caused by distal bile duct cancer recurrence was admitted to our hospital. As treatment, we performed endoscopic ultrasound-guided hepaticogastrostomy and placed a self-expanding metal stent. Computed tomography was performed immediately after the procedure to ensure proper stent placement. Although repeat imaging the next day revealed that the stent on the hepaticogastrostomy route had shortened, the stent on the gastric side maintained sufficient length. However, 11 days after the procedure, the stomach-to-liver distance had increased, and the stent on the gastric side was significantly shortened. Endoscopic imaging revealed that the stent had almost migrated, and we added a fully covered self-expanding metal stent into the previous metallic stent via the hepaticogastrostomy route. The patient was discharged 19 days after the initial procedure without complications. Computed tomography performed 40 days after the hepaticogastrostomy revealed that the initial stent had migrated into the abdominal cavity, but the second stent was in an appropriate position. In conclusion, repeated monitoring by computed tomography after hepaticogastrostomy procedure may be an effective method for preventing stent migration in high-risk cases.
4.Follow-up computed tomography can prevent stent migration after endoscopic ultrasound-guided hepaticogastrostomy
Yasuhiro KOMORI ; Akihisa OHNO ; Nao FUJIMORI ; Kazuhide MATSUMOTO ; Keijiro UEDA ; Kazuki TAKEISHI ; Tomoharu YOSHIZUMI ; Yoshihiro OGAWA
International Journal of Gastrointestinal Intervention 2025;14(1):35-38
A 61-year-old man with obstructive jaundice caused by distal bile duct cancer recurrence was admitted to our hospital. As treatment, we performed endoscopic ultrasound-guided hepaticogastrostomy and placed a self-expanding metal stent. Computed tomography was performed immediately after the procedure to ensure proper stent placement. Although repeat imaging the next day revealed that the stent on the hepaticogastrostomy route had shortened, the stent on the gastric side maintained sufficient length. However, 11 days after the procedure, the stomach-to-liver distance had increased, and the stent on the gastric side was significantly shortened. Endoscopic imaging revealed that the stent had almost migrated, and we added a fully covered self-expanding metal stent into the previous metallic stent via the hepaticogastrostomy route. The patient was discharged 19 days after the initial procedure without complications. Computed tomography performed 40 days after the hepaticogastrostomy revealed that the initial stent had migrated into the abdominal cavity, but the second stent was in an appropriate position. In conclusion, repeated monitoring by computed tomography after hepaticogastrostomy procedure may be an effective method for preventing stent migration in high-risk cases.
5.The Wire-Grasping Method as a New Technique for Forceps Biopsy of Biliary Strictures: A Prospective Randomized Controlled Study of Effectiveness.
Yasunobu YAMASHITA ; Kazuki UEDA ; Yuki KAWAJI ; Takashi TAMURA ; Masahiro ITONAGA ; Takeichi YOSHIDA ; Hiroki MAEDA ; Hirohito MAGARI ; Takao MAEKITA ; Mikitaka IGUCHI ; Hideyuki TAMAI ; Masao ICHINOSE ; Jun KATO
Gut and Liver 2016;10(4):642-648
BACKGROUND/AIMS: Transpapillary forceps biopsy is an effective diagnostic technique in patients with biliary stricture. This prospective study aimed to determine the usefulness of the wire-grasping method as a new technique for forceps biopsy. METHODS: Consecutive patients with biliary stricture or irregularities of the bile duct wall were randomly allocated to either the direct or wire-grasping method group. In the wire-grasping method, forceps in the duodenum grasps a guide-wire placed into the bile duct beforehand, and then, the forceps are pushed through the papilla without endoscopic sphincterotomy. In the direct method, forceps are directly pushed into the bile duct alongside a guide-wire. The primary endpoint was the success rate of obtaining specimens suitable for adequate pathological examination. RESULTS: In total, 32 patients were enrolled, and 28 (14 in each group) were eligible for analysis. The success rate was significantly higher using the wire-grasping method than the direct method (100% vs 50%, p=0.016). Sensitivity and accuracy for the diagnosis of cancer were comparable in patients with the successful procurement of biopsy specimens between the two methods (91% vs 83% and 93% vs 86%, respectively). CONCLUSIONS: The wire-grasping method is useful for diagnosing patients with biliary stricture or irregularities of the bile duct wall.
Bile Ducts
;
Biliary Tract
;
Biopsy*
;
Constriction, Pathologic*
;
Diagnosis
;
Duodenum
;
Hand Strength
;
Humans
;
Methods*
;
Prospective Studies*
;
Sphincterotomy, Endoscopic
;
Surgical Instruments*
6.Prediction of a Null Response to Pegylated Interferon alpha-2b Plus Ribavirin in Patients with High Viral Load Genotype 1b Hepatitis C.
Yuki WADA ; Hideyuki TAMAI ; Akira KAWASHIMA ; Naoki SHINGAKI ; Yoshiyuki MORI ; Masanori KAWAGUCHI ; Kosaku MORIBATA ; Hisanobu DEGUCHI ; Kazuki UEDA ; Izumi INOUE ; Takao MAEKITA ; Mikitaka IGUCHI ; Jun KATO ; Masao ICHINOSE
Gut and Liver 2014;8(4):421-427
BACKGROUND/AIMS: The present study aimed to clarify whether virological response within 2 weeks after therapy initiation can predict a null response to pegylated interferon alpha-2b plus ribavirin therapy in patients with high viral load genotype 1b hepatitis C. METHODS: The participants consisted of 72 patients with high viral load genotype 1b. The dynamics of viral load within 2 weeks were measured. RESULTS: Significant differences between null responders and nonnull responders were noted for interleukin (IL)-28B genotype, amino acid 70 substitution, alpha-fetoprotein, low-density lipoprotein cholesterol, hyaluronic acid, and viral response. The area under the curve (AUC) for the receiver operating characteristic curve of the hepatitis C virus (HCV) RNA level decline at 2 weeks (AUC=0.993) was the highest among the factors predicting the null response. When the cutoff value for the HCV RNA level decline at 2 weeks was set at 0.80 log, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy in predicting a null response were 82%, 96%, 82%, 96%, and 94%, respectively. In comparison, values for the non-TT and mutant type of amino acid 70 substitution were similar to those for HCV RNA level decline at 2 weeks. CONCLUSIONS: Virological response at 2 weeks or the combination of IL-28B and amino acid 70 substitution are accurate predictors of a null response.
Administration, Oral
;
Adult
;
Aged
;
Antiviral Agents/*administration & dosage
;
Area Under Curve
;
Drug Therapy, Combination
;
Female
;
Genotype
;
Hepatitis C, Chronic/*drug therapy/genetics
;
Humans
;
Injections, Subcutaneous
;
Interferon-alpha/*administration & dosage
;
Male
;
Medication Adherence
;
Polyethylene Glycols/*administration & dosage
;
Prospective Studies
;
RNA, Viral/metabolism
;
Recombinant Proteins/administration & dosage
;
Ribavirin/*administration & dosage
;
Treatment Outcome
;
Viral Load
;
Young Adult
7.Rapid On-Site Evaluation by Endosonographers during Endoscopic Ultrasonography-Guided Fine-Needle Aspiration for Diagnosis of Gastrointestinal Stromal Tumors.
Takashi TAMURA ; Yasunobu YAMASHITA ; Kazuki UEDA ; Yuki KAWAJI ; Masahiro ITONAGA ; Shin ichi MURATA ; Kaori YAMAMOTO ; Takeichi YOSHIDA ; Hiroki MAEDA ; Takao MAEKITA ; Mikitaka IGUCHI ; Hideyuki TAMAI ; Masao ICHINOSE ; Jun KATO
Clinical Endoscopy 2017;50(4):372-378
BACKGROUND/AIMS: Endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) has been used to diagnose gastrointestinal submucosal tumors (SMTs). Although rapid on-site evaluation (ROSE) has been reported to improve the diagnostic accuracy of EUS-FNA for pancreatic lesions, on-site cytopathologists are not routinely available. Given this background, the usefulness of ROSE by endosonographers themselves for pancreatic tumors has also been reported. However, ROSE by endosonographers for diagnosis of SMT has not been reported. The aim of this study was to evaluate the diagnostic accuracy of EUS-FNA with ROSE by endosonographers for SMT, focusing on diagnosis of gastrointestinal stromal tumor (GIST), compared with that of EUS-FNA alone. METHODS: Twenty-two consecutive patients who underwent EUS-FNA with ROSE by endosonographers for SMT followed by surgical resection were identified. Ten historical control subjects who underwent EUS-FNA without ROSE were used for comparison. RESULTS: The overall diagnostic accuracy for SMT was significantly higher in cases with than without ROSE (100% vs. 80%, p=0.03). The number of needle passes by FNA with ROSE by endosonographers tended to be fewer, although accuracy was increased (3.3±1.3 vs. 5.9±3.8, p=0.06). CONCLUSIONS: ROSE by endosonographers during EUS-FNA for SMT is useful for definitive diagnosis, particularly for GIST.
Biopsy, Fine-Needle*
;
Diagnosis*
;
Endoscopic Ultrasound-Guided Fine Needle Aspiration
;
Gastrointestinal Stromal Tumors*
;
Humans
;
Needles