Objective To assess the effects of limited hepatectomy on liver regeneration and function recovery of cirrhotic animal model.Methods Cirrhotic rat models were first prepared by intraperitoneal injection of CCL4.After that,the cirrhotic animal models underwent 20％ hepatectomy (n =30).The cirrhotic animals that underwent sham operation (n =30) and normal animals that underwent 20％ hepatectomy (n =30) were used as control groups.From the time when cirrhotic models were prepared to 3 months after 20％ hepatectomy,the hepatic function,coagulation function were tested regularly.Western blotting and real-time PCR were carried out to test the protein and gene expression of TGF-β,HGF and PCNA.Results Hepatic fibrosis and cirrhosis were observed during the preparation of cirrhotic rat models by intraperitoneal injection of CCL4.The hepatic function and coagulation function of cirrhotic models were partly recovered 3 month after 20％ hepatectomy.The gene and protein expression levels of TGF-β in the liver of animal model get higher during the preparation of cirrhotic rat models.However,the gene and protein expression levels of TGF-β get lower in cirrhotic model undergoing 20％ hepatectomy,when compared with that in cirrhotic animals (sham operation) and normal animals (20％ hepatectomy).Furthermore,the gene and protein expression levels of HGF and PCNA get higher in cirrhotic model undergoing 20％ hepatectomy,when compared with that in cirrhotic animals (sham operation) and normal animals (20％ hepatectomy).Conclusions Experimental limited hepatectomy facilitates the liver regeneration and function recovery of cirrhotic animal model,which may provide a novel method for the prevention and treatment of cirrhosis using limited hepatectomy technique.

Objective:To investigate the efficacy and toxicity of oxaliplatin reintroduction combined with raltitrexed as second-line che-motherapy after the first-line oxaliplatin-based chemotherapy in advanced colorectal cancer patients. Methods:The 48 evaluable pa-tients with advanced colorectal cancer following disease progression prior to the first-line chemotherapy were treated with oxaliplatin and raltitrexed (raltitrexed 3 mg/m2 ivgtt d1, oxaliplatin 100-130 mg/m2 ivgtt d1, q21d). All 48 patients were divided into two groups:Group A, non-oxaliplatin-based regimens as the first-line chemotherapy, 20 cases;Group B, oxaliplatin-based regimens as the first-line chemotherapy, 28 cases. Each group was evaluated every two cycles. Results:The response rates (RR) of Groups A and B were 30.0%(6/20) and 32.1%(9/28), the disease control rates (DCR) were 80.0%(16/20) and 75.0%(21/28), the median progression free survival time (mPFS) was 6.5 and 7.0 months, and the median overall survival time (mOS) was 10 and 13 months, respectively. No statistical sig-nificance was observed between the two groups in their RR, CR, mPFS, and mOS (P=0.264, 0.514, 0.713, 0.788), respectively. The most common adverse effects observed wereⅠ-Ⅱgrades of bone marrow suppression, aminotransferase abnormality, and digestive toxici-ties. The incidence of neurotoxicity (Ⅰ-Ⅱgrades) between the two groups was similar. Conclusion:Instead of irinotecan combined with raltitrexed, oxaliplatin reintroduction combined with raltitrexed for second-line chemotherapy after the first-line oxaliplatin-based chemotherapy in advanced colorectal cancer patients is feasible.

Objective:To explore the value of using bipolar electrogram to guide target selection in patients with frequent premature ventricular contractions in the right ventricular outflow tract (RVOT-PVC).Methods:The clinical data of 115 patients with idiopathic and frequent RVOT-PVC from October 2018 to January June 2020 in Guangzhou First People′s Hospital were retrospectively analyzed. The number of PVCs in Holter 24 h before ablation was 19 802.6±4916.7, and the load was (20.3±5.0)%. The Johnson & Johnson Carto 3.0 system was used to guide RVOT-PVC radiofrequency ablation, and the morphological characteristics of the bipolar electrogram in the cavity of the successful ablation target were observed. According to whether the starting part of the bipolar electrogram of the distal ablation catheter showed a steep negative shape recorded by the Carto 3.0 system, the patients were divided into positive group and negative group. The differences in ablation success rate, effective discharge time, total ablation time and other indicators of the two groups were compared.Results:Steep negative wave was recorded in the initial part of the effective target site of 87 patients (75.7%). The ablation success rate of the patients was 95.4%(83/87) based on the excitation mapping and unipolar morphology combined with the above initial part of the bipolar electrogram. Compared with the negative group, the PVC disappeared faster in patients of positive group [(6.9±2.3)s vs (10.2±2.9)s, P<0.05] and the total ablation time was shorter [(187.5±35.7)s vs (267.3±54.1)s, P<0.05]. Ambulatory electrocardiogram (ECG) was rechecked at 3 months. At 3 months, there was 1 case recurrence in the positive group and 1 case recurrence in the negative group, and there was no significant difference in the long-term recurrence rate between the two groups ( P=0.422). Conclusions:On the basis of traditional mapping, the bipolar electrogram combined with the steep negative shape of the initial part can be used as an alternative RVOT-PVC ablation strategy.

Objective To analyze of intravascular ultrasound in patients with acute myocardial infarction underwent percutaneous coronary interention in application effect. Methods Collected data of cardiology inpatient, intravascular ultrasound (IVUS) steering group 75 cases. Steering group on routine coronary angiography (the CAG group), a total of 75 cases. Compared to conventional coronary angiography guidance with the method of intravascular ultrasound guid-ance in patients with acute myocardial infarction underwent percutaneous coronary interention. Compared balloon expansion for the first time after stents minimum diameter, minimum cross-sectional area, patch load, acute benefit as well as the minimum cross-sectional area after interventional stent, plaque load, acute benefit. Results First balloon expanded stents minimum diameter, minimum cross-sectional area, patch load, acute benefit of intravascular ultrasound and coronary angiography group were (3.2±0.3, 8.5±1.8, 45.2±7.0, 104.2±20.6;2.4±0.4, 6.3±1.9, 56.9±8.2, 71.2±21.3) respectively, the difference was statistically significant (P<0.05); Intravascular ultrasound and coronary angiography group after interventional stent minimum cross-sectional area, patch load, acute benefit were respectively (9.35 ±1.65, 49.2±9.2, 107.5±22.2;9.3±1.7, 49.1±8.7, 92.6±25.1), the minimum cross-sectional area and plaque load difference had no statistical significance (P>0.05), acute benefit difference was statistically significant (P<0.05). Conclusion Intravas-cular ultrasound in patients with intervention can improve postoperative acute benefit.

Objective To investigate the effect of early active cycle breathing technique(ACBT)on aspiration in patients with dysphagia after partial laryngectomy.Methods A total of 40 patients with laryngeal cancer with dysphagia who were hospitalized in the Department of Otorhinolaryngology of the Third Xiangya Hospital of Central South University in January 2019～January 2022 were selected,and the patients were randomly divided into 20 cases in the observation group and the control group by random number method,the control group was given routine swallowing function training,and the observation group was combined with active cycle of breathing technique(ACBT)on the basis of the control group.The two groups were treated 5 days a week,twice a day,45 minutes each for 2 weeks.The M.D.Anderson Dysphagia Inventory(MDADI),maximum phonation time(MPT),and Standardized Swallowing Assessment(SSA),flexible endoscopic examination of swallowing(FEES)combined with modified invasion and aspiration score(MPAS score)and overall clinical efficacy before and after treatment were compoued between the two groups.Results After 2 weeks of treatment,the swallowing function of both groups improved,but the MDADI scores in the observation group were better than those of in the control group in all cate-gories(P＜0.001),MPT(7.19±1.31)was better than that of the control group(4.29±0.88)(=9.436,P＜0.001),SSA(19.25±1.12)was better than that of the control group(21.20±2.55)(=-2.894,P＜0.05),and FEES combined with MPAS score(1.75±0.85)was better than the control group(2.70±1.34)(=-2.674,P＜0.001),and the overall clinical efficacy(18,90.00％)was better than the control group(12,60.00％)(Z=-3.894,P＜0.001).Conclusion Early application of active breathing and circulation technique combined with swallowing training can improve the swallowing function of patients to a greater extent and reduce the incidence of aspiration compared with swallowing function training alone.

Aortoesophageal fistula (AEF) is a rare but fatal complication caused by foreign body ingestion. Aortic replacement and endovascular stent graft are the common repair surgeries. The materials to repair an aortic defect in AEF are typically homograft or allograft, but the use of an autologous pericardium patch is rarely reported. Here we reported a patient with AEF and severe mediastinal infection induced by chicken bone ingestion. In this case, the autologous pericardium patch was used as the repair material.
Aorta ; injuries ; surgery ; Aortic Diseases ; etiology ; surgery ; Autografts ; transplantation ; Esophageal Fistula ; etiology ; surgery ; Foreign Bodies ; complications ; Gastrointestinal Hemorrhage ; etiology ; surgery ; Humans ; Mediastinal Diseases ; surgery ; Pericardium ; transplantation ; Stents ; Transplantation, Autologous ; methods ; Vascular Fistula ; etiology ; surgery ; Vascular Grafting ; methods

OBJECTIVETo explore clinical characteristics， treatment and prognosis of primary central nervous system lymphoma(PCNSL).

METHODSRetrospective analysis, Kaplan-Meier analysis and Log-rank test were conducted on 30 PCNSL patients from 2006 to 2014 in our hospital.

RESULTSThe median age of this cohort (14 males and 16 females) was 57.4 years old. 18 cases had single tumor, 12 cases multiple. 17 cases presentd with intracranial hypertension and 13 cases focal neurological deficits. 13 cases (62%) were diffuse large B cell lymphoma. About 60% patients received combination therapy including surgery, radiotherapy or chemotherapy. 63.3% complete remission rate (CR) was achieved for all patients. Kaplan-Meier analysis and Log-rank test showed the median overall survival (OS) was 24 months, the rates of 2-year survival, 5-year survival, 6-month progression-free survival(PFS) and 1-year free-progressed survival (PFS) were as of 46.7%, 13.3%, 60.0% and 43.3% respectively. The median OS of 11 patients received whole brain radiotherapy(WBRT)combined with chemotherapy was 48 months. The median OS of 7 patients treated with stereotactic radiosurgery(SRS) combined with chemotherapy had no significant difference when compared to the former (P=0.233). Survive analysis showed that age was prognostic factor for PCNSL patients(P=0.030).

CONCLUSIONDiffuse large B cell lymphoma was the main type of PCNSL, single or multiple location, presented with increased intracranial hypertension or focal neurological deficits. Age was the key prognostic factor for patients. Surgery was suitable for patients with supertentorial and superficial tumor or with acute intracranial hypertension syndrome. SRS was a feasible local therapy which alleviated the symptoms and led to less toxicity. PCNSL patients might benefit from multimode therapy.

Central Nervous System Neoplasms ; Combined Modality Therapy ; Disease-Free Survival ; Female ; Humans ; Kaplan-Meier Estimate ; Lymphoma ; Male ; Middle Aged ; Prognosis ; Remission Induction ; Retrospective Studies

OBJECTIVE：To rapidly evaluate the effectiveness，safety and economics of rosuvastatin （RSV）in the treatment of dyslipidemia，so as to provide evidence-based support for clinical drug use. METHODS ：Retrieved from PubMed ，Embase， Cochrane Library ，CNKI，Wanfang database and CBM ，etc.，health technology assessment （HTA）related website and database were searched systematically to select HTA report ，Meta-analysis/systemic evaluation and pharmacoeconomics study about RSV versus placebo or other positive drugs in the treatment of dyslipidemia. According to the inclusion and exclusion criteria ，two researchers independently screened the literatures ，extracted and summarized the data ，then performed qualitative description of results. RESULTS ：Totally 11 Meta-analysis and 11 pharmacoeconomic studies were included ，and no relevant HTA report was retrieved. Results of the study showed that compared with the control group ，RSV could regulate dyslipidemia ，and reduce the levels of LDL-C ，TG，TC，C-reactive protein and sdLDL ；RSV could also reverse atherosclerotic plaque ，reduce all-cause mortality with good safety. In terms of economy ，compared with other statins or placebo ，RSV could prolong quality-adjusted life year，its incremental cost-effectiveness ratio is lower than the desired payment threshold ，which had more economic advantages. CONCLUSIONS：RSV is effective ，safe and economical in the treatment of hyperlipidemia.

OBJECTIVEThe aim of this study was to analyze the clinical features and prognostic factors in patients with brain metastasis from colorectal cancer (CRC).

METHODSClinical materials of 45 colorectal cancer patients who developed brain metastasis were collected, and the data and follow-up data of those patients were retrospectively analyzed.

RESULTSMost brain metastases were from rectal cancer (64.4%), and 80.0% of the 45 cases had extracranial metastases. The most common extracranial metastatic site was the lung (57.8%), followed by the liver (35.6%). All the brain metastases in patients with liver metastases were supratentorial, while in contrast, 44.8% of the patients without liver metastasis had subtentorial metastasis, showing a significant difference between them (P<0.05). The interval time from diagnosis of CRC to the development of brain metastases in case of Dukes D stage was 12.0 months, significantly shorter than that in the cases of Dukes A stage (24.0 months), B (36.0 months) and C (29.0 months) (P<0.05). The interval time was also shorter in the patients who developed extracranial metastasis within one year than those more than one year (12.0 months vs. 38.0 months)( P<0.05). The median survival time of patients with brain metastasis from colorectal was 6.0 months, with a 1-year survival rate of 21.1% and 2-year survival rate of 3.3% only. Univariate analysis showed that the median survival of patients with a KPS score of ≥70 was 8.0 months, significantly higher than 2.0 months in those with a KPS score of <70 (P<0.05). The median survival of patients with one or two brain metastases was 8.0 months, significantly higher than 4.0 months of those with >2 brain metastases (P<0.05). The median survival time after diagnosis of brain metastasis was 4.0 months for those who received monotherapy (only steroids, only chemotherapy or only radiotherapy), significantly shorter than 10.0 months of patients who received chemoradiotherapy, and 12.0 months of those who underwent surgery (P<0.05). Comparing each two differently treated groups, the survival time of surgery combined with chemotherapy or radiotherapy group was significantly different from that of all of other groups (P<0.05). The median survival time of chemoradiotherapy group was longer than that of monotherapy, but the difference was not significant (P>0.05). Multivariate analysis showed that brain metastases >2 and treatment modality type are independent prognostic factors for survival.

CONCLUSIONSPatients initially diagnosed with a Dukes D stage primary colorectal tumor and occurrence of extracranial metastasis (especially, pulmonary metastasis) within one year are associated to an increased risk of brain metastases and have a shorter survival time. Most brain metastases in patients with liver metastases are supratentorial, while many patients without liver metastasis have subtentorial metastasis. Brain metastases >2 and the type of treatment modality are independent prognostic factors for survival. The prognosis of patients who received chemoradiotherapy is better than those treated only with chemotherapy or radiotherapy. Some subsets of patients may benefit from surgery plus chemotherapy/radiotherapy.

Brain Neoplasms ; mortality ; secondary ; therapy ; Chemoradiotherapy ; Colorectal Neoplasms ; Humans ; Liver Neoplasms ; secondary ; Lung Neoplasms ; secondary ; Neoplasm Staging ; Prognosis ; Rectal Neoplasms ; pathology ; Retrospective Studies ; Survival Rate ; Time Factors