Objectives To investigate the diagnosis and laparoscopic surgical treatment methods of calculus of cystic duct. MethodsThe clinical data of 147 patients with calculus of cystic duct underwent laparoscopic cholecystectomy (LC) in the Second Affiliated Hospital of Wenzhou Medical College from June 2008 to June 2013 were analyzed retrospectively. ResultsAmong the 147 patients with calculus of cystic duct, 19 cases were given preoperative diagnosis by B-ultrasound and CT scanning, 128 cases were found by exploration in operation; 146 cases underwent LC successfully and 1 case was converted to laparotomy.The 147 cases were followed-up for 3 months to 2 years with an average of 7 months and all cases were out of bile duct injury, hemorrhage, bile leakage, residual calculi or other complications. ConclusionsPreoperative diagnosis of calculus of cystic duct is difficult, meanwhile, routine intraoperative probe is very necessary for the diagnosis of calculus of cystic duct.Proficiency in surgical technique with laparoscopic treatment of calculus of cystic duct is the key to the success of LC.
Hemodynamic situation is an important factor of recurrence of postoperative carotid artery aneurysm. In order to investigate the hemodynamic factors of postoperative carotid artery aneurysm affect carotid artery aneurysm recurrence, we established a 3D finite element carotid artery aneurysm for the preoperative and postoperative periods using the three-dimensional reconstruction techniques. And then we measured the hemodynamic factors of carotid artery aneurysm of preoperative and postoperative by the finite element method. The carotid artery aneurysm model has an accurate and realistic shape; the pressure of the recurrence of aneurysm was reduced significantly after surgery,wall shear stress increased significantly at residual neck, and blood flow velocity increased significantly, which will increase the risk of recurrence. The hemodynamic analysis provides a reference for development of aneurysm clinical treatment programs and prevention of recurrence.