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BACKGROUND: Biliary stone disease is a highly prevalent condition and a leading cause of hospitalization worldwide. Hepatolithiasis with associated strictures has high residual and recurrence rates after traditional multisession percutaneous transhepatic cholangioscopic lithotripsy (PTCSL).
OBJECTIVE: To study one-step PTCSL using the percutaneous transhepatic one-step biliary fistulation (PTOBF) technique guided by three-dimensional (3D) visualization.
METHODS: This was a retrospective, single-center study analyzing, 140 patients who, between October 2016 and October 2023, underwent one-step PTCSL for hepatolithiasis. The patients were divided into two groups: The 3D-PTOBF group and the PTOBF group. Stone clearance on choledochoscopy, complications, and long-term clearance and recurrence rates were assessed.
RESULTS: Age, total bilirubin, direct bilirubin, Child-Pugh class, and stone location were similar between the 2 groups, but there was a significant difference in bile duct strictures, with biliary strictures more common in the 3D-PTOBF group (P = 0.001). The median follow-up time was 55.0 (55.0, 512.0) days. The immediate stone clearance ratio (88.6% vs 27.1%, P = 0.000) and stricture resolution ratio (97.1% vs 78.6%, P = 0.001) in the 3D-PTOBF group were significantly greater than those in the PTOBF group. Postoperative complication (8.6% vs 41.4%, P = 0.000) and stone recurrence rates (7.1% vs 38.6%, P = 0.000) were significantly lower in the 3D-PTOBF group.
CONCLUSIONS: Three-dimensional visualization helps make one-step PTCSL a safe, effective, and promising treatment for patients with complicated primary hepatolithiasis. The perioperative and long-term outcomes are satisfactory for patients with complicated primary hepatolithiasis. This minimally invasive method has the potential to be used as a substitute for hepatobiliary surgery.

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BACKGROUND: Obesity is closely associated with upper gastrointestinal disorders. The recommendations for routine preoperative esophagogastroduodenoscopy (EGD) before bariatric surgery remains a topic of debate. This study aimed to describe the pathological endoscopic findings in individuals qualified for bariatric surgery.
METHODS: Retrospective analysis was conducted on preoperative gastroscopy reports of patients who underwent bariatric surgery at our hospital between October 2022 and October 2023.
RESULTS: A total of 405 patients were included in the study. The two most prevalent endoscopic findings during EGD in this patient cohort were chronic superficial gastritis (326/405, 80.5%) and reflux esophagitis (82/405, 20.2%). Some patients exhibited two or more abnormalities. Patients with reflux esophagitis were older, had a higher proportion of men, higher BMI, higher rates of smoking and drinking compared to those without it (P = 0.033, P < 0.001, P = 0.003, P = 0.001, and P = 0.003, respectively). Morbid obesity (P = 0.037), smoking habits (P = 0.012), and H. pylori infection (P = 0.023) were significant risk factors for reflux esophagitis in male patients, while age (P = 0.007) was the sole risk factor in female patients. No statistically significant differences were observed in surgical procedures between LA-A and B groups (P = 0.382), but statistically significant differences were noted between the nondiabetic and diabetic groups (P < 0.001).
CONCLUSIONS: Preoperative EGD can unveil a broad spectrum of pathologies in patients with obesity, suggesting the need for routine examination before bariatric surgery. The findings of this study can guide bariatric surgeons in developing tailored treatments and procedures, thus significantly enhancing prognosis. Gastroscopy should be performed routinely in Chinese patients planning to undergo bariatric surgery.

Amyloidosis is a rare disease. This paper reports a case of localized secondary hypopharyngeal amyloidosis presenting with pulmonary tuberculosis as the initial symptom. The patient lacked specific clinical manifestations and primarily exhibited symptoms such as cough, sputum production, acid reflux, belching, and abdominal pain. Chest CT indicated bronchiectasis with infection and pulmonary tuberculosis. Digestive endoscopy revealed a white mucosal elevation at the right pyriform sinus of the hypopharynx. Pathological diagnosis confirmed amyloid deposits in the hypopharyngeal mucosal tissue. The patient tested positive for anti-amyloid A antibodies, Congo red staining (+), and periodate Schiff staining (+). Amyloidosis commonly affects the digestive system and may have various etiologies, often presenting with symptoms that overlap with other digestive system diseases, leading to frequent misdiagnosis and missed optimal treatment opportunities. The hypopharynx, a highly folded and narrow chamber that serves as a common passage for the digestive and respiratory tracts, can be effectively evaluated for amyloidosis using digestive endoscopy.
淀粉样变性是一种罕见疾病。本文报告1例以肺结核为首发症状的局限性继发性下咽部淀粉样变患者。该患者缺乏特异性临床表现，主要表现为咳嗽、咳痰、反酸、嗳气、腹痛等症状，胸部CT提示支气管扩张伴感染及肺结核，消化内镜检查主要表现为下咽部右侧披裂处一白色黏膜隆起，病理诊断为下咽部黏膜组织内淀粉样物沉积。抗淀粉样蛋白A抗体阳性，刚果红染色(+)、过碘酸希夫染色(+)。淀粉样变性最常累及消化系统，发生于消化系统的淀粉样变性病因多，且常与其他消化系统疾病的临床表现混淆，易漏诊和误诊，从而错过最佳的治疗时机。下咽部是消化道与呼吸道的共同通道，为高度皱襞化的狭窄腔隙性器官，消化内镜有助于发现中下咽部的淀粉样变性。.

OBJECTIVE: This study aimed to evaluate the application of choledochoscopy combined with double-cannula lavage in the treatment of acute pancreatitis (AP) with encapsulated necrosis and analyzed related inflammatory indexes.
METHODS: Thirty patients with AP with encapsulated necrosis were enrolled and treated with choledochoscopy and double-cannula lavage. Serum white blood cell (WBC), procalcitonin (PCT), C-reactive protein (CRP), interleukin 6 (IL-6), IL-8, tumor necrosis factor alpha (TNF-α), and related inflammatory indexes were detected before and after surgery.
RESULTS: All of the participants who underwent the surgery recovered well and were discharged without serious complications; no deaths occurred. The serum WBC, PCT, and CRP of patients after surgery decreased compared with before the procedure, and the differences in WBC and CRP were statistically significant (P < 0.05); the difference in PCT was not statistically significant (P > 0.05). Postoperatively, IL-6, IL-8, and TNF-α levels were higher than before surgery, and the differences were statistically significant (P < 0.05).
CONCLUSIONS: The surgical method presented herein effectively controlled and alleviated the infection of patients; it also did not increase the risk of infection and can thus be considered a safe and effective surgical method.

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BACKGROUND: Missed early gastric cancer (MEGC) is prevalent during esophagogastroduodenoscopy (EGD), which is the first-line recommended strategy for detecting early gastric cancer (EGC). Hence, we explored the risk factors for MEGC and different types of MEGC, based on the endoscopic resected population.
METHODS: This retrospective, case-control study was conducted at Nanjing Drum Tower Hospital (NJDTH). We included patients who were diagnosed with EGC during screening EGD, underwent endoscopic resection, and were confirmed by postoperative pathology at the NJDTH from January 2014 to December 2021, and classified them into different types according to the different root causes of misses. Univariable, multivariable, subgroup and propensity score analyses were used to explore the risk factors for MEGC and different types of MEGC.
RESULTS: A total of 447 patients, comprising 345 with initially detected early gastric cancer (IDEGC) and 102 with MEGC, were included in this study. Larger size (≥ 1 cm) (OR 0.45, 95% CI 0.27-0.74, P = 0.002) and invasion depth of submucosa (OR 0.26, 95% CI 0.10-0.69, P = 0.007) were negatively associated with MEGC. Use of sedation (OR 0.32, 95% CI 0.20-0.52, P < 0.001) and longer observation time (OR 0.60, 95% CI 0.37-0.96, P = 0.034) exhibited protective effect on MEGC.
CONCLUSIONS: Smaller and more superficial EGC lesions are more susceptible to misdiagnosis. The use of sedation and prolonged observation time during EGD could help reduce the occurrence of MEGC.

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