Objective To investigate the feasibility, safety and effectiveness of stent-assisted coil embolization for the treatment of intracranial wide-necked aneurysms. Methods The clinical and imaging data of the patients with intracranial wide-necked aneurysm treated with stent-assisted coil embolization were analyzed retrospectively. Results A total of 200 patients with 205 aneurysms were enrolled. The mortality was 1. 5% and the disability rate was 1. 0% at discharge. One hundred seventy-seven patients were followed up for 16-51 months. The modified Rankin Scale scores: 0 in 174 cases, 2 in 2 cases, 4 in 1 case. Eleven patients (5. 5% ) had perioperative complications, including intraoperative bleeding in 3 cases, postoperative bleeding in 3 cases, postoperative cerebral infarction in 2 cases, coil protrusion in 2 cases, and postoperative epileptic seizure in 1 case. Univariate analysis showed that there were significant differences in the proportions of male patients (9. 1% vs. 5. 3% ; χ2 = 4. 42, P = 0. 026), hypertension (54. 5% vs. 23. 3% ; χ2 = 5. 42, P = 0. 03) and stent prior to coil implantation (54. 5% vs. 85. 1% ; χ2 = 3. 54, P =0. 021) between the complication group and the noncomplication group. Multivariate logistic regression analysis showed that the pre-stenting was an independent protective factor for surgery-related complications (odds ratio [OR] 0. 208, 95% confidence interval [CI] 0. 055-0. 791; P = 0. 021), and hypertension was an independent risk factor for surgery-related complications (OR 4. 380, 95% CI 1. 170-16. 399; P = 0. 028). The imaging follow-up of 167 aneurysms was obtained, including 26 recurrent aneurysms (15. 6% ). Univariate analysis showed that there was significant difference in the aneurysm site (anterior circulation aneurysms: 73. 1% vs. 89. 1% ; posterior circulation aneurysms: 26. 9% vs. 10. 6% ; χ2 = 5. 09, P = 0. 033) and size (giant aneurysms: 7. 7% vs. 0. 7% ; large artery aneurysm: 65. 4% vs. 29. 1% ; small aneurysms:26. 9% vs. 70. 2% ; χ2 = 20. 77, P < 0. 001) between the recurrence group and the nonrecurrence group. Multivariate logistic regression analysis showed that large aneurysms (OR 6. 057, 95% CI 2. 296-5. 983; P <0. 001), giant aneurysms (OR 25. 260, 95% CI 1. 903- 335. 267; P = 0. 014 ), and posterior circulation aneurysms ( OR 3. 184, 95% CI 1. 028- 9. 857; P = 0. 045 ) were the independent risk factors of postoperative recurrence. Conclusions Stent-assisted coil embolization is one of the effective methods for the treatment of complex wide-neck aneurysms. Hypertension and coils prior to stenting are the independent risk factors for perioperative complications, and larger aneurysm size and aneurysms in the posterior circulation are the independent risk factors for postoperative recurrence.

Objective To study the association, clinical presentation, and diagnosis and treatment of bile duct cancer as a late complication of biliary-enteric anastomoses for benign diseases. Methods A retrospective study was carried out on 5 patients and the medical literature was reviewed. Results They were 3 males and 2 females. The average age was ( 66. 0 ± 0. 7 ) years. The average time period was ( 14. 0 ± 6. 1 ) years after biliary-enteric anastomosis. The clinical presentations included right upper quadrant pain, fever, chills and jaundice. CA19-9, CT and MRI were valuable in diagnosis. There were two patients with distal and three patients with perihilar cholangiocarcinomas (type IIIa, n=2, and type IV, n=1). Local resection with lymphadenectomy was carried out in one patient. Another patient underwent pancreaticoduodenectomy. The remaining three patients only underwent percutaneous transhepatic cholangial drainage ( PTCD). The 2 patients who underwent surgery died of progressive tumor disease at 8 and 13 months postoperatively. The other three patients who underwent palliative biliary drainage died within 6 months of PTCD. There was no significant difference between the two types of treatment ( P ＞0. 05). Conclusions Chronic cholangitis caused by reflux and bacterial infection was properly a predisposing factor leading to late development of bile duct cancer after biliary-enteric anastomosis for benign diseases. Patients treated with biliary-enteric anastomosis should be closely monitored for late development of cholangiocarcinoma. Some procedures such as choledochoduodenostomy and jejunum interposition choledochoduodenostomy should be abandoned because of their poor outcomes and severe complications. Proper indications of biliary-enteric anastomosis should strictly be followed and the Oddi's sphincter should be protected if possible to prevent late development of bile duct cancer.

Objective: To compare the treatment effect of surgical clipping and endovascular coil embolization for aneurysmal subarachnoid hemorrhage (aSAH) in the elderly. Methods: Elderly patients with aSAH (aged >65 years) treated in Shanghai Pudong Hospital from January 2009 to December 2017 were enrolled retrospectively. They were divided into craniotomy clipping group and endovascular intervention group according to the treatment strategy. The Glasgow Outcome Scale was used for short-term outcome assessment at discharge, 4-5 were defined as good outcome, and 1-3 were defined as poor outcome. Long-term follow-up was performed to assess clinical outcomes using the modified Rankin Scale, 0-2 was defined as good outcome and 3-6 were defined as poor outcome. The clinical and imaging information, perioperative complications, short-term and long-term clinical outcomes, and long-term imaging outcomes were compared between the two groups. Multivariate logistic regression analysis was used to assess the independent influencing factors of clinical outcomes. Results: A total of 68 elderly patients with aSAH were enrolled. Of these, 47 (69.1%) received endovascular coil embolization and 21 (30.9%) underwent microsurgical clipping. There were no significant differences between the two groups in the incidence of perioperative complications, short-term and long-term adverse outcomes, and imaging recurrence rate. Multivariate logistic analysis showed that smoking (odds ratio [OR] 36.319, 95% confidence interval [CI] 3.530-373.640; P=0.003), modified Fisher grade (OR 20.406, 95% CI 2.022-205.964; P=0.011) and World Federation of Neurological Societies (WFNS) grade (OR 4.686, 95% CI 1.012-21.692; P=0.048) were the independent risk factors for short-term poor outcomes in elderly patients with aSAH. Conclusion Both endovascular intervention and microsurgical clipping are safe and effective treatments for elderly patients with aSAH.