Objective:To analyze the clinical efficacy of vascular resection and reconstruction during radical resection in patients with hilar cholangiocarcinoma.Methods:A retrospective analysis was conducted on the clinical data of 151 patients with hilar cholangiocarcinoma who underwent radical resection in the Department of Hepatobiliary and Pancreatic Surgery at the First Affiliated Hospital of Anhui Medical University from April 2018 to April 2025. Among them, there were 91 males and 60 females, with an age of (65.4±10.5) years. According to whether radical resection of hilar cholangiocarcinoma was combined with vascular resection, the patients were divided into the vascular resection group ( n=19) and the control group ( n=132). Postoperative complications such as bleeding, biliary fistula, and thrombosis were recorded, along with intraoperative blood loss, R 0 resection rate, perioperative mortality, and recurrence rate at six months postoperatively. Results:The preoperative bilirubin reduction and intraoperative blood loss in the vascular resection group were 6 (31.6) and 200 (200, 200) ml, respectively, while those in the control group were 45 (34.1) and 200 (100, 200) ml, respectively. There were no statistically significant differences between the two groups (all P>0.05). The combined liver resection, Billroth operation type Ⅰ-Ⅱ, and operation time in the vascular resection group were 18 (94.7), 1 (5.3), and 420 (377.5, 512.5) min, respectively, while those in the control group were 79 (59.8), 38 (28.8), and 322.5 (260, 410) min, respectively. There were statistically significant differences between the two groups (all P<0.05). The R 0 resection, perioperative mortality rate, postoperative bleeding, postoperative biliary fistula, postoperative thrombosis, postoperative pathology (adenocarcinoma), and recurrence rate at 6 months after surgery in the vascular resection group were 16 (84.2), 2 (10.5), 2 (10.5), 3 (15.8), 1 (5.3), 18 (94.7), and 1 (5.9), respectively, while those in the control group were 103 (78.0), 5 (3.8), 5 (3.8), 25 (18.9), 2 (1.5), 121 (91.7), and 6 (4.7), respectively. There were no statistically significant differences between the two groups (all P>0.05). The postoperative hospital stay, alanine aminotransferase on the 1st and 3rd day after surgery, and postoperative liver failure in the vascular resection group were 18 (13.5, 21.5) days, 619 (305.4, 1 634.0) U/L, and 1 (5.3), respectively, while those in the control group were 14 (11, 18), 254.5 (139.3, 468.3) U/L, and 3 (2.3), respectively. There were statistically significant differences between the two groups (all P<0.05). Conclusion:Vascular resection and reconstruction during radical resection of hilar cholangiocarcinoma in patients has certain safety and efficacy.

Objective:To analyze the clinical efficacy of vascular resection and reconstruction during radical resection in patients with hilar cholangiocarcinoma.Methods:A retrospective analysis was conducted on the clinical data of 151 patients with hilar cholangiocarcinoma who underwent radical resection in the Department of Hepatobiliary and Pancreatic Surgery at the First Affiliated Hospital of Anhui Medical University from April 2018 to April 2025. Among them, there were 91 males and 60 females, with an age of (65.4±10.5) years. According to whether radical resection of hilar cholangiocarcinoma was combined with vascular resection, the patients were divided into the vascular resection group ( n=19) and the control group ( n=132). Postoperative complications such as bleeding, biliary fistula, and thrombosis were recorded, along with intraoperative blood loss, R 0 resection rate, perioperative mortality, and recurrence rate at six months postoperatively. Results:The preoperative bilirubin reduction and intraoperative blood loss in the vascular resection group were 6 (31.6) and 200 (200, 200) ml, respectively, while those in the control group were 45 (34.1) and 200 (100, 200) ml, respectively. There were no statistically significant differences between the two groups (all P>0.05). The combined liver resection, Billroth operation type Ⅰ-Ⅱ, and operation time in the vascular resection group were 18 (94.7), 1 (5.3), and 420 (377.5, 512.5) min, respectively, while those in the control group were 79 (59.8), 38 (28.8), and 322.5 (260, 410) min, respectively. There were statistically significant differences between the two groups (all P<0.05). The R 0 resection, perioperative mortality rate, postoperative bleeding, postoperative biliary fistula, postoperative thrombosis, postoperative pathology (adenocarcinoma), and recurrence rate at 6 months after surgery in the vascular resection group were 16 (84.2), 2 (10.5), 2 (10.5), 3 (15.8), 1 (5.3), 18 (94.7), and 1 (5.9), respectively, while those in the control group were 103 (78.0), 5 (3.8), 5 (3.8), 25 (18.9), 2 (1.5), 121 (91.7), and 6 (4.7), respectively. There were no statistically significant differences between the two groups (all P>0.05). The postoperative hospital stay, alanine aminotransferase on the 1st and 3rd day after surgery, and postoperative liver failure in the vascular resection group were 18 (13.5, 21.5) days, 619 (305.4, 1 634.0) U/L, and 1 (5.3), respectively, while those in the control group were 14 (11, 18), 254.5 (139.3, 468.3) U/L, and 3 (2.3), respectively. There were statistically significant differences between the two groups (all P<0.05). Conclusion:Vascular resection and reconstruction during radical resection of hilar cholangiocarcinoma in patients has certain safety and efficacy.

Background::The combination of high-frequency oscillations (HFOs) with single-mode imaging methods has been proved useful in identifying epileptogenic zones, whereas few studies have examined HFOs combined with multimodal imaging methods. The aim of this study was to evaluate the prognostic value of ripples, an HFO subtype with a frequency of 80 to 200 Hz is combined with multimodal imaging methods in predicting epilepsy surgery outcome.Methods::HFOs were analyzed in 21 consecutive medically refractory epilepsy patients who underwent epilepsy surgery. All patients underwent positron emission tomography (PET) and deep electrode implantation for stereo-electroencephalography (SEEG); 11 patients underwent magnetoencephalography (MEG). Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy in predicting surgical outcome were calculated for ripples combined with PET, MEG, both PET and MEG, and PET combined with MEG. Kaplan-Meier survival analyses were conducted in each group to estimate prognostic value.Results::The study included 13 men and 8 women. Accuracy for ripples, PET, and MEG alone in predicting surgical outcome was 42.9%, 42.9%, and 81.8%, respectively. Accuracy for ripples combined with PET and MEG was the highest. Resection of regions identified by ripples, MEG dipoles, and combined PET findings was significantly associated with better surgical outcome (P < 0.05). Conclusions::Intracranial electrodes are essential to detect regions which generate ripples and to remove these areas which indicate good surgical outcome for medically intractable epilepsy. With the assistance of presurgical noninvasive imaging examinations, PET and MEG, for example, the SEEG electrodes would identify epileptogenic regions more effectively.