Objective To discuss the surgical treatment of contracted bladder caused by ketamine abuse. Methods Twenty-five ketamine male abusers were included in this study.The ages were from 19 to 28 years old and mean age was 24 years old.AIl of them had abused ketamine history for 0.7 tO 4.0 years,and presented with severe lower urinary tract symptoms.including severe frequency,urgency,urge incontinence,and painful haematuria.Urine cultures were negative.Hepatic function and renal function were normal.B ultrasound examination of 23 cases demonstrated the presence of bilateral hydronephrosis,the separation of renal pelvic was(1.8±0.7)cm.B ultrasound examination of 22 cases demonstrated residual urine was 45-1 50 ml,mean 80 m1.Twenty-three IVU investigations demonstrated the presence of bilateral hydronephrosis with calyces renales minores cycloidal expansion and bladder contraction.All the patients took the urodynamies with bladder capacity was (89±34)ml,end filling detrusor pressure was(48±26)cm H2O,Qmax was(7.8±2.3)ml/s,residual urine volume was(82±47)m1.All patients had cystoscopies and random biopsies performed showed ulcerative cystitis only.All patients were required to withdraw the narcotics and the experimental medicines were given without symptoms alleviated.Sigmoid cystoplasty was performed in all the 25 patients. Results The mean follow up was 18 months(rang 6 to 36).Compared with that before operation, bladder capacity increased to (375 ±53)ml, end filling detrusor pressure reduced to( 13 ±9)cm H2O, Qmax increased to(17.6±5.8)ml/s, residual urine volume reduced to(20±10)ml.Compared with the preoperative, there were statistically significant differences.There was no complained of urinary incontinence, enuresis, frequency, urgency.Urine routine examination was normal.IVU showed the vesicoureteral reflux disappeared in all patients, and calyces renales no expansion or calyces renales minores light degree expansion.B ultrasound examination that the separation of renal collecting was(1.0 ±0.5)cm. Conclusions Sigmoidcystoplasty could increase bladder capacity and compliance, lower the intravesieal pressure.It could improve the patients' quality of life.

Based on the Chinese knowledge network,Wanfang Database,VIP database,Baidu,Google,we collected and sorted papers published by professor Liu Changlin over the past years,and made a statistical analysis with the use of bibliometric methods to summarize outcomes of professor Liu Changlin in the research of Chinese medicine philosophy.This article demonstrated a high academic value and status of professor Liu Changlin and to provide useful information for the further study of Chinese medicine philosophy.

Objective To compare the clinical therapeutic effect of percutaneous nephrolithotomy (PCNL) and flexible ureteroscope lithotripsy (FUL) for unilateral lower-calyceal calculi with the diameter of 10-20 mm. Methods The clinical data of 65 patients with unilateral lower-calyceal calculi with the diameter of 10-20 mm were retrospectively analyzed. Thirty cases were treated with PCNL (PCNL group), and 35 cases were treated with FUL (FUL group). The operative time, success rate of lithotomy, haemoglobin decrease after operation, postoperative hospital stay, hospitalization expenses and complication were compared between 2 groups. Results Treatment was completed successfully in the patients of 2 groups, without ureteral perforation, avulsion and other serious complications intraoperatively and postoperatively. There were no statistical differences in success rate of lithotripsy, incidence of high fever after operation and postoperative analgesia rate between 2 groups (P>0.05). The operative time and hospitalization expenses in FUL group were significantly higher than those in PCNL group:(95.27 ± 22.69) min vs. (62.25 ± 20.73) min and (17 242 ± 2 679) yuan vs. (14 205 ± 1 654) yuan, and the haemoglobin decrease after operation and postoperative hospital stay time were significantly lower than those in PCNL group:(0.67 ± 0.33) g/L vs. (7.98 ± 4.33) g/L and (3.75 ± 0.78) d vs. (6.54 ± 1.68) d, and there were statistical differences (P<0.05). Conclusions For the treatment of lower-calyceal calculi with the diameter of 10-20 mm, the success rates of lithotripsy of PCNL and FUL are similar. FUL has less trauma, with shorter postoperative hospital stay time, but the cost is relatively high.

Acute respiratory failure (ARF) after operation for esophageal carcinoma is a serious challenge to medical management and usually accompanied by a high mortality rate. This paper present author's experience on the management of 10 such cases. It is emphasized that advanced age, long-history of smoking, COPD are predisposing factors and in-trathoracic surgery and its complication may trigger the ARF,which usually occurs within 48-72 hours after operation. Besides assist mechanical ventilation, thorough clearance of the secretion from the respiratory tract, control of pulmonary infection and early eradication of the intrathoracic complications are the key points of the successful treatment. Preoperative pulmonary functional studies with careful analysis in correlation with patients condition is mandatory especially in elderly patients. Prevention is more important and valuable than treatment for the patients with postoperative acute respiratory failure.

Objective To study the enhancing effect of ultrasound plus microbubble on small interference RNA(siRNA)transfection in vitro and in vivo.Methods Human vascular epithelial growth factor(VEGF)siRNA with 2'deoxy modification(VEGF 2'-eoxy siRNA,VdsR)was used.The human CNE cells(fromnasopharyngeal carcinoma)line was used for in vitro cell-based experiments and in vivo mouse xenograft model.Two different microbubble agents.BR14 and Levovist.were used together with the RNA transfection reagent RNA-mate.ELISA and RT-PCR assays were used to assess VEGF gene expression.Immunohistochemical staining (IHC)was performed to assess CD31 expression in xenograft tumors.Results VdsR transfection in CNE cells abolished VEGF expression as determined by ELISA experiments.In the first mouse xenograft experiment,ultrasound exposure dramatically enhanced VdsR-mediated tumor inhibition.In the second mouse xenograft experiment,when VdsR was mixed with the microbubble reagents and then injected into xenografts,ultrasoundexposure significantly reduced tumor growth in BR14-mixed VdsR group but not in the Levovist-mixed VdsR group compared to the control.RT-PCR experiments demonstrated that VEGF expression in ultrasound-exposed tumors was significantly lower than that in the control.Meanwhile,VEGF expression in the tumor tissue treated by BRl4-mixed VdsR declined as compared with the controls.Tumor vascular density as measured by CD31 immunostaining was significantly decreased in ultrasound-exposed tumors compared to the control.Conclusions Ultrasound exposure and/or microbubble can significantly enhance delivery and the efficiency of VdsR-mediated anti-tumor effects,and should be a location-specific enhancement approach for siRNA-based anti-cancer therapy.

Objective To compare health related quality of life (HRQOL) between modified and traditional cutaneous ureterostomy, and explore the reasons for these differences, in order to provide the basis of HRQOL for the choice of cutaneous ureterostomy. Methods A total of 53 patients underwent cutaneous ureterostomy were selected, and the patients were divided into traditional cutaneous ureterostomy group (traditional group, 21 cases) and modified cutaneous ureterostomy group (modified group, 32 cases) according to the surgery method. The patients were evaluated by functional assessment of cancer therapy-bladder (FACT-BL), and the HRQOL was compared between 2 groups. Results There were no statistical differences in HRQOL score at 1, 3, 6 and 9 months after surgery between 2 groups (P>0.05). The HRQOL score at 12 months after surgery was significantly higher in modified group than that in traditional group:(141.5 ± 10.4) scores vs. (123.1 ± 5.2) scores, and there was statistical difference (P<0.01). There were no statistical differences in the scores of physiology status, society/family status, emotional state and functional assessment of cancer therapy-general (FACT-G) at 12 months after surgery between 2 group (P>0.05). But the scores of functional status and bladder cancer special scale (BSS), total score of FACT-BL in modified group were significantly higher than those in traditional group:(26.0 ± 2.5) scores vs. (23.8 ± 3.5) scores, (46.7 ± 6.2) scores vs. (34.8 ± 5.5) scores, (143.9 ± 15.7) scores vs. (117.5 ± 8.1) scores, and there were statistical differences (P<0.01). Conclusions The HRQOL at 12 months after surgery in modified cutaneous ureterostomy is better than that in traditional cutaneous ureterostomy. Therefore, if the patient's physical condition permits, priority should be given to modified cutaneous ureterostomy to reduce the complications and improve the quality of life.

BACKGROUNDLung cancer is still the most common cause of cancer death. Although it is reported that the 5-year survival rate for lung cancer has been greatly increased, surgical results are controversial. The aim of this study is to investigate and evaluate the improvement of survival of lung cancer surgically intervened in PUMC hospital during the last 15 years.

METHODSFrom January 1989 to December 2003, 1574 cases of lung cancer underwent surgical treatment and obtained follow-up. The results were retrospectively a- nalysed . All cases in this series were divided into two groups according to time, group A (1999-2003) and group B (1989-1998), and the differences of survival rate between group A and group B were compared.

RESULTSThe morbidity and mortality of group A decreased significantly when compared to group B (11.2% vs 19.2%, 1.06% vs 1.93%, respectively, P < 0.01). However, the 3- and 5-year survival rates had been obviously raised from 42.35% to 56.07%, and from 28.46% to 38.99%, respectively (P < 0.05 ). A significant improvement in survival was observed in patients with stageI, stage II and stage IIIA, but not in stage IIIB and stage IV. Also, the patients with lobectomy had better results but those with exploratory thoracotomy, limited resection, pneumonectomy and sleeve resection did not show better results.

CONCLUSIONSLobectomy associated with systematic dissection of mediastinal lymph nodes has become the standard mode for the resectable lung cancer. Combination of complete resection and lymph nodes dissection, with postoperative adjuvant chemotherapy based on platinum/3rd generation medicine, have preliminarily been justified and proved an important approach for effective improvement of long-term survival of lung cancer.

OBJECTIVETo understand the clinical manifestations, diagnostic methods, surgical management and prognosis of retrosternal thyroid masses in various pathological types.

METHODSSixty-four cases of retrosternal thyroid masses with surgical intervention were analyzed retrospectively.

RESULTSTrachea-compressed symptoms (65%) and shadows beside the trachea at thoracic inlet (94%) were the most common clinical findings, chest X-ray (70%) and CT scan (96%) had higher diagnostic rate. No death occurred during operation or hospitalization among these patients. Total complications occurred in 15.7% cases (11/70) (including 3 preoperative cases with hoarseness) and postoperative pathological results were mainly multinodular goiter (54.7%), thyroid adenoma (21.9%) and thyroid carcinoma (15.6%) (including local carcinomatous change).

CONCLUSIONSDiagnosis of retrosternal thyroid mass can be correctly made by chest X-ray and CT scan. Most operations on retrosternal thyroid masses can be performed safely through cervical incision with minimal morbidity and low recurrence rate. Retrosternal thyroid carcinoma was potentially invasive and could hardly be resected completely, hence with poor prognosis.

Adenoma ; diagnosis ; surgery ; Adult ; Aged ; Carcinoma ; diagnosis ; surgery ; Female ; Goiter, Nodular ; diagnosis ; surgery ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Thoracotomy ; Thyroid Gland ; diagnostic imaging ; surgery ; Thyroid Neoplasms ; diagnosis ; surgery ; Thyroidectomy ; Tomography, X-Ray Computed

Objective To evaluate the effects of different depths of sedation on serum adiponectin (ADP) concentrations in elderly patients undergoing general anesthesia.Methods A total of 120 elderly patients of both sexes,aged 65-83 yr,weighing 45-75 kg,of American Society of Anesthesiologists physical status Ⅱ or Ⅲ,undergoing elective noncardiac surgery under general anesthesia,were divided into Ⅰ and Ⅱ groups (n =60 each) using a random number table.Propofol was given by closed-loop target-controlled infusion,and bispectral index value was maintained at 40-50 in group Ⅰ and at 50-60 in group Ⅱ.The cognitive function was assessed by the Montreal Cognitive Assessment at 1 day before operation ant 1 and 7 days after operation.Blood samples were collected from the internal jugular vein immediately before surgery,at 2 h after the beginning of surgery and at 1 and 7 days after surgery for determination of serum ADP and S-100β protein concentrations.Results Compared with group Ⅰ,Montreal Cognitive Assessment scores were significantly increased at 1 and 7 days after surgery,the serum concentrations of ADP were increased and S-100β protein concentrations in serum were decreased at 1 and 7 days after surgery,and the intraoperative requirement for ephedrine and atropine and incidence of postoperative cognitive dysfunction were decreased during surgery in group Ⅱ (P＜0.05).Conclusion Maintaining BIS value at 50-60 can reduce the development of postoperative cognitive dysfunction,which is related to the increased concentration of serum ADP in elderly patients undergoing general anesthesia.

BACKGROUNDTo isolate and identify the genes related to cancer metastasis by comparison of two cell strains with different metastasis potentials subcloned from human lung giant cell carcinoma cell line.

METHODSSuppression subtractive hybridization (SSH) was used to compare the levels of gene expression between the two cell strains and SSH library was constructed. After screening the library by gene chip, the expressed sequence tags (ESTs) with different expressing level were sequenced and blasted with GenBank.

RESULTSSeventy-nine genes were obtained that were expressed much higher in PLA-801D than in PLA-801C, including two full-length cDNA. GenBank Accession numbers of the two cDNA, named MAG-1 and MAG-2, were BC006236 and BC002420, the 8.5 kb MAG-1 gene was composed of four exons and located on the chromosome of 4q21. The MAG-2 gene, which was made up by 9 exons, had a length of 5.2 kb and its location was 2q35. Both sequences had open reading frames (ORF) and promoters before the theoretical transcription start points. Using special software, the secondary structure of theoretical products of the two cDNAs was prognosticated, α-helix was the main proportion, but β-pleated sheet and random coil were also included.

CONCLUSIONSThe expression of MAG-1 and MAG-2 has significant differences in these two cell strains, so they might impact tumor metastasis in some ways that are still uncharted.