ObjectiveTo summarize the diagnosis and management of intravenous leiomyomatosis, and to compare effect of the one-stage surgery and two-stage surgery. MethodsClinicopathological data of 18 patients hospitalized in Peking Union Medical College Hospital who were diagnosed as intravenous leiomyomatosis with intracaval and intracardiac extension during Jan. 2002 to Sep. 2013 were collected, and some indexes of the one-stage surgery group and two-stage surgery group were compared, including blood loss, blood transfusion, operation time, period of stay in ICU, hospital stay, and hospitalization expense. ResultsAll the patients were diagnosed as intravenous leiomyomatosis pathologically after operation. Of the 18 patients, 6 (33.3%) patients underwent one-stage surgery and 12 (66.7%) patients underwent two-stage surgery. There were no significant difference on blood loss, blood transfusion, operation time, period of stay in ICU, hospital stay, and hospitalization expense (P > 0.05). There were some patients suffered from complication, including 1 case of pleural effusion, 1 case of recurrent laryngeal nerve injury, 1 case of pulmonary infection in one-stage surgery group; 1 cases of arrhythmia, 2 cases of intestinal obstruction, 2 cases of pleural effusion in two-stage surgery group. No significance had be found in incidence rate of complication between one-stage surgery group and two-stage surgery group (P=1.000). Tumors of 2 patients who underwent two-stage surgery had developed before the second surgery, increasing the difficulty and risk of the second surgery. Three cases of one-stage group were followed-up for 48-63 month (the median time was 62.0 months), 10 cases in two-stage group were followed-up for 1-43 month (the median time was 19.5 months). During the followed-up period, occurrence happened in 1 case of two-stage group, but without death in all cases. ConclusionsBoth one-stage surgery and two-stage surgery are effective and safe. Taking physical and psychological endurance of patients into consideration, one-stage surgery is highly recommended if the patient is in good status and can tolerate the strike brought by the surgery.
ObjectiveTo evaluate the effects of nerve growth factor (NGF) on angiogenesis and skeletal muscle fiber remodeling in ischemic hindlimbs, and study the relationship of NGF and vascular endothelial growth factor (VEGF) to angiogenesis. MethodsEighteen mice were randomly allocated to normal control group (n=6), blank control group (n=6), and NGF gene transfection group (n=6). The left hindlimb ischemia model was established by ligating the femoral artery. NGF plasmid (125μg) was injected into the mouse ischemic gastrocnemius in the NGF gene transfection group. The same volume of normal saline (200μL) was injected into the mouse ischemic gastrocnemius in the blank control group. The gastrocnemius of left hindlimb was harvested under the condition of peritoneal cavity anesthesia on the 21th day after operation, and then the mice were sacrificed. The gastrocnemius of three groups were tested by hematoxylin-eosin staining, proliferating cell nuclear antigen (PCNA) and CD34 were determined by immunohistochemistry staining. Skeletal muscle fiber type was tested by myosin ATPase staining. NGF and VEGF protein expression were detected by enzyme linked immunosorbent assay. ResultsOn the 21th day after surgery, compared with the blank control group, the skeletal muscle atrophy degree was weaker, the functional assessment score was significantly lower (P < 0.05), the endothelial cell proliferation index, capillary density, the typeⅠskeletal muscle fiber proportion, NGF and VEGF expression were significantly higher (P < 0.05) in the NGF gene transfection group. ConclusionsNGF gene transfection could promote NGF and VEGF expression and angiogenesis in ischemic hindlimbs, and induce typeⅠskeletal muscle fibers formation in ischemic hindlimbs. The molecular regulation mechanism still needs to be further studied.
ObjectiveTo summarize the experience in treating the elderly patients (≥75 years old) with carotid artery stenosis, and to evaluate the efficacy and safety of the carotid endarterectomy (CEA). MethodsThe datum of 312 cases with carotid artery stenosis and underwent the CEA in the vascular surgery department of Peking Union Medical College Hospital from October 2009 to October 2012 were retrospectively analized.The risk factors of the CEA in treating the elderly patients were analized, and the measures to prevent perioperative complications were discussed. ResultsThirty-nine cases were brought into the research.The mean follow-up was (22.18±8.71) months.Thirty-three cases (84.6%) were male and 6 cases (15.4%) were female.The median age was 77 years old (75-82 years old).Eleven cases (28.2%) were with bilateral lesions, and 7 cases (17.9%) were asymptomatic.A total of 39 CEA procedures were successfully performed, 22 artificial vascular patches (56.4%) and 16 shunts (41.0%) were used.The mean average hospital stay was (17.38±5.39) days.One case showed cerebral hyperperfusion syndrome in 2th day after operation, another 1 case was found ipsilateral restenosis in 15th month after operation. ConclusionCEA is a safe and effective measure in treating the elderly patients with carotid artery stenosis, if the the indications of surgery is performed strictly.