1.Advances in multiviscerai transplantation and experience of postoperative management
Shi-Kun QIAN ; Xiao-Shun HE ; Xiao-Feng ZHU ;
Chinese Journal of Organ Transplantation 2005;0(10):-
Objective To discuss the advance and experience of postoperative management in multivisceral transplantation(MVT).Methods Five patients with abdominal multiple organs malig- nances were subjected to multivisceral transplantation.The excised specimens included the liver,pan- creas,duodenum,stomach,spleen,mesentery and all of the involved lymph nodes.The transplanted organs were liver,pancreas,duodenum and parts of intestine.Patients were monitored and sustained stably in breath,hemodynamics and homoeostasis.The coagulation was also monitored and kept in balance.The intensive immunosuppressive protocol,including steroid,tacrolimus,mycophenolate mofetil and Zenapax,was used to prevent the acute rejection.The endocrine and exocrine of pancreas were tested,color Doppler examination was done every day,and Somatostatin was used to prevent pancreatitis.Drugs to bacteria,fungus and virus infection were prophylactically used.Results All patients waked up with 4-6 h after operation and began recovering with 3-7 days.Dynamic examina- tions revealed that the functions of grafted liver,pancreas and duodenum were satisfactory.No com- plications of acute rejection,pancreatitis,bleeding and thrombosis occurred.Conclusion Many ques- tions in postoperative management related to multivisceral transplantation are devoted to study.Nice experience of management to organ transplantation,detailed monitoring and prophylactically medica- tions are safeguards to steady recovering and further prognosis.
2.Preliminary observation of targeted contrast agent of CT in the acute tuberculosis animal model
Haoling ZHANG ; Yuxin SHI ; Jun QIAN ; Feng FENG ; Fang LIU ; Zhiyong ZHANG
Chinese Journal of Radiology 2012;(12):1132-1137
Objective To explore the feasibility of anti-85B and ESAT-6 monoclonal antibodies targeted contrast agent of CT by the murine acute tuberculosis animal model.Methods Preparation the targeted contrast agent of computed tomography by iodine atoms coupled with anti-85B and ESAT-6 murine monoclonal antibodies after purified.Calculate the label rate and the quality of 127Ⅰ of the targeted contrast agent solution,and dilute the contrast agent solution to the required concentration (5μg I/ml) to spare.There were twenty mice of acute tuberculosis animal model,which were divided into four groups by completely randomized digital table and each group was five animals.According to the different antibody named as 85B group and ESAT-6 group of targeted contrast agent,common contrast agent and blank control separately.The common contrast agent group was injected with diluents of iohexol,which was diluted into the same concentration with the targeted contrast agent.The control group was injected with antibody diluents pH 7.4 Phosphate Buffered Saline (PBS).All the animals were scanned before and after injection the contrast agent in different time,such as immediate,6 hours,12 hours and 24 hours.Observe the display and changes of the murine tuberculosis lesions,and measurement the CT value,which was regarded as evaluating mark.Enhancement ratio was also calculated.Two sample mean differences with t test and the multiple sample mean differences with ANOVA.Results The volume of anti-85B contrast agent solution was 2.52 ml,and the quality of antibody and 127Ⅰ were range from 210 to 255 μg and 10.5 to 16.6 μg respectively.The volume of anti-ESAT-6 contrast agent solution was 2.93 ml,and the quality of antibody and 127Ⅰ were 147 μg and 20.58 μg respectively.The lesions of the control group showed no visible density changes before and after injection of PBS.The CT value of the lung lesions in the targeted contrast agent group were gradually increased with time,and the lesion showed visible enhancement after the contrast injection twelve hours(t12),and also remained visible enhancement after injection twenty-four hours(t24)[85B group t12 =(-125.04 ± 13.58) HU,t24 =(-117.37 ± 12.28) HU and ESAT-6 group t12 =(-122.14 ± 19.01) HU,t24 =(-114.23 ± 17.08) HU],which is significant difference compared to the common contrast agent [t (85B-24 h) =4.05,t (ESAT-6-24 h) =6.39,P < 0.05].Conclusions The targeted property of anti-85B and ESAT-6 murine monoclonal antibody contrast agent of CT had been partly proved by the acute tuberculosis animal model.Also provided an experimental basis for further study of tuberculosis targeted contrast agent.
3.Efficacy of laparoscopy-assisted radical gastrectomy for gastric cancer: a report of 726 cases
Peiwu YU ; Feng QIAN ; Yingxue HAO ; Yongliang ZHAO ; Yan SHI ; Bo TANG ; Huaxing LUO ; Jun CHEN
Chinese Journal of Digestive Surgery 2011;10(1):44-47
Objective To explore the efficacy of laparoscopy-assisted radical gastrectomy for patients with gastric cancer. Methods The clinical data of 726 patients who received laparoscopy-assisted radical gastrectomy for gastric cancer at the Southwest Hospital from January 2004 to April 2010 were retrospectively analyzed. The operation time, operative blood loss, number of lymph nodes dissected, length of hospital stay and mobidity were evaluated using t test or chi-square test. The survival of the patients were evaluated by Kaplan-Meier method.Results Laparoscopy-assisted radical gastrectomy was successfully carried out on 707 patients, and 19 patients were converted to open surgery. The mean operation time, operative blood loss, number of lymph nodes dissected were (179 ±52)minutes, (87 ±51) ml and 33 ± 14, respectively. The average distances of proximal and distal resection margin to the tumors were (6.3 ± 1.9)cm and (5.6 ± 1.7)cm, respectively. The average time to flatus, time to fluid diet and length of hospital stay were (2.9 ± 1.4) days, (3.1 ± 1.7) days and (7.9 ± 3.5) days,respectively. The peri- and postoperative mobidities were 2.2% (16/726) and 4.0% (29/726), respectively. A total of 685 patients were followed up for 6-82 months (mean, 48.3 months), and the 5-year survival rate was 58.4%. Conclusions Laparoscopy-assisted radical gastrectomy is a feasible procedure with minimal trauma, low morbidity and quick recovery of patients.
4.Resection of gastric stump cancer using da vinci robotic surgical system
Feng QIAN ; Peiwu YU ; Yan SHI ; Huaxing LUO ; Yongliang ZHAO ; Bo TANG ; Yingxue HAO
Chinese Journal of Digestive Surgery 2013;12(12):944-947
Although the surgical procedure and approach of da Vinci robotic surgical system-assisted radical resection of gastric cancer are gradually mature,it is rarely used for the resection of gastric stump cancer because of the complexity and low resection rate.In November of 2012,resection of gastric stump cancer using da Vinci robotic surgical system was performed in the Southwest Hospital.The short-term efficacy was satisfactory after the follow-up for 12 months.Da vinci robotic surgical system has the advantages of clear vision,easy manipulation of abdominal adhesion detaching,flexible operation and stable traction during resection of gastric stump cancer.
5.Remnant stomach-jejunal dual pathways reconstruction after laparoscope-assisted radical proximal gastrectomy
Feng QIAN ; Bo TANG ; Yan SHI ; Yongliang ZHAO ; Huaxin LUO ; Gang SUN ; Ao MO ; Peiwu YU
Chinese Journal of Digestive Surgery 2008;7(3):174-176
Objective To investigate the value of remnant stomach-jejunal dual pathways reconstruction after laparoscope-assisted radical proximal gastrectomy in the treatment of upper gastric cancer. Methods Twenty-five patients with upper gastric cancer underwent laparoscope-assisted radical proximal gastrectomy and the remnant distal stomach was preserved for side-to-side remnant stomach-jejunal anastomosis and end-to-side jejuno-jejunal anastomosis to reconstruct dual pathways. Results The mean operation time was (240±35) minutes, the mean number of lymph nodes dissected were 22±5, and all the incised margins were negative. No anastomotic leakage, obstruction or stenosis occurred. All patients received postoperative barium meal examination. A large amount of barium directly entered the jejunum, leaving a small amount of barium entered the jejunnum via the route of remnant stomach-duodenum, and was detained in the remnant stomach for 30-60 minutes. No esophageal reflux of barium was observed. All the patients were followed up for 4-18 months, no reflux esophagitis was detected and the short-term life quality was satisfactory. Conclusions Remnant stomach-jejunal dual pathways reconstruction prevents the reflux esophagitis and dumping syndrome, preserves the pathway of duodenum and promotes the life quality of patients.
6.Laparoscopic total gastrectomy for gastric cancer
Feng QIAN ; Peiwu YU ; Ziqian WANG ; Bo TANG ; Yan SHI ; Yongliang ZHAO ; Huaxing LUO ; Gang SUN
Chinese Journal of General Surgery 2008;23(4):262-264
Objective To investigate the feasibility,method and result of laparoscopic total gastrectomy for gastric cancer. Methods Clinical data of 63 cases of gastric cancer treated with laparoseopic total gastrectomy were analyzed retrospectively. Results In this study,52 cases underwent laparoseopic radical total gastrectomy and 5 cases did laparoseopic palliative total gastrectomy.The procedure Was hand assisted in tlle first 45 cases for fashoning esophagojejunostomy through a small incision.In six cases the procedure was converted to open surgery.The operative time was(312±35)min,the blood loss was(190±50)ml,the number of lymph nodes dissected Was(32±7).It began to pass flatus(4.0±1.2)days postoperatively.It was(4.5±1.5)days to start oral liquids.Patients were up and about on(4.0±1.5)days postoperatively. Minor postoperative complications occurred in 5 cases. Conclusion Laparoscopic total gastrectomy for gastric cancer is safe,feasible,less traumatic and of fast postoperative recovery.
7.A comparative study on laparoscopic-assisted and open distal gastrectomy for advanced gastric cancer
Yongliang ZHAO ; Peiwu YU ; Feng QIAN ; Yan SHI ; Bo TANG ; Yingxue HAO ; Huaxing LUO ; Yuanzhi LAN
Chinese Journal of General Surgery 2011;26(9):713-716
ObjectiveTo evaluate the feasibility, safety and the long-termoutcomes of laparoscopy-assisted distal gastrectomy (LADG) for advanced gastric cancer (AGC).MethodsWe retrospectively analyzed the clinical and follow-up data of 346 cases after LADG from January 2004 to June 2009, compared with 313 cases after conventional open distal gastrectomy (ODG) for advanced gastric cancer at the same period at our hospital. The surgical safety, postoperative complications, survival rate, and the recurrence and metastasis of cancer were compared.ResultsThere was no significant difference at the average time of LADG and ODG procedures (211 ± 56) min vs.(204 ±41 ) min, but blood loss during operation and length of incision in LADG group were significantly less than in the ODG group. The proximal and distal length were, respectively, (6. 3 ± 2. 0) cm and (5. 7 ± 1.7 ) cm in LADG group and (6. 3 ±2. 1 ) cm and (5.6 ± 1.6) cm in ODG group, the difference was not significant. The number of lymph node dissections was also similar: (33 ± 13) in LADG group and (33 ± 16) in ODG group. The incidence of postoperative complications in LADG group was significantly lower than that in ODG group ( 6. 7% vs.13. 1%, P < 0. 05). During the follow-up period of 6-72 months (average 37 months), the 1-, 3-and 5-year survival rates were, respectively, 87. 2%, 57. 2% and 50. 3% in LADG group and 87. 1%, 54. 1%and 49. 2% in ODG group, the difference was not significant. The differences in recurrence and metastasis between the two groups were not statistically significant.ConclsionLaparoscopy-assisted gastrectomy for advanced gastric cancer is not significantly different with open surgery in postoperative survival rate or recurrence. It is less traumatic and of fewer complications.
8.Insertion of anvil into esophagus for anastomosis during laparoscopic radical proximal gastrectomy or radical total gastrectomy for gastric cancer
Yan SHI ; Peiwu YU ; Feng QIAN ; Xiao LEI ; Huaxing LUO ; Yongliang ZHAO ; Bo TANG ; Yingxue HAO
Chinese Journal of Digestive Surgery 2012;11(1):82-85
Objective To investigate the clinical value of a new anvil inserting method for esophagogastrostomy or esophagojejunostomy during laparoscopic radical proximal gastrectomy or radical total gastrectomy for gastric cancer.Methods The clinical data of 21 patients with gastric cancer who received laparoscopic radical proximal gastrectomy or radical total gastrectomy at the Southwest Hospital from March 2010 to February 2011 were retrospectively analyzed.Five trocars were inserted through the abdominal wall of the patients.After perigastric lymphadenectomy and mobilization of esophagus,an incision was made on the esophagus above the tumor,and then the anvil with drawn wire attached was inserted into the esophagus.An endo-cutter was applied to cut the esophagus adjacent to the incision left the drawn wire untouched,and then the stem of the anvil was pulled out by the drawn wire for laparoscopic anastomosis. Results The operations were successfully accomplished under the laparoscope with no conversion to open surgery.Fifteen patients received laparoscopic radical total gastrectomy and 6 received laparoscopic radical proximal gastrectomy. The mean operation time,volume of blood loss,time to off-bed activity,passage of flatus and postoperative duration of hospital stay were (257 ± 38) minutes,( 119 ± 32) ml,(2.5 ± 0.5 ) days,( 3.7 ± 0.8 ) days and (7.5 ± 2.6) days,respectively.No perioperative mortality,anastomotic bleeding or anastomotic fistula was detected.One patient was complicated with pulmonary infection + pleural effusion and was cured by conservative treatment; 1 was complicated with anastomotic stenosis which was alleviated by gastroscopic balloon dilation; 1 was complicated by incisional infection and was cured by medical treatment after drainage.No cancer cells were detected at the anastomotic ring or resection margin of the specimen.There were 4 patients with well-differentiated adenoma,8 with moderate-differentiated adenoma and 9 with poor-differentiated mucinous adenoma.There were 5 patients in stage Ⅰ,10 in stage Ⅱ and 6 in stage Ⅲ (UICC staging).Twenty-one patients were followed up for a mean period of (11 ±4) months (range,6-17 months ),no tumor recurrence or metastasis was detected. Conclusions The new technique for anvil insertion is safe,effective and easy for manipulation and learn.It offers a new approach for laparoscopic digestive tract reconstruction.
9.Laparoscopic D3 radical gastrectomy for advanced gastric cancer
Feng QIAN ; Bo TANG ; Yan SHI ; Yongliang ZHAO ; Yingxue HAO ; Gang SUN ; Yuanzhi LAN ; Peiwu YU
Chinese Journal of Digestive Surgery 2012;11(3):223-226
Advanced gastric cancer is usually dealt with D2 radical dissection. There are different opinions as to whether it is necessary to perform D3 radical lymphadenectomy.Some scholars thought that properly enlarged radical dissection can improve long-term outcomes for the treatment of advanced gastric cancer.In recent years,laparoscopic D1 and D2 radical dissection of gastric cancer could be carried out in many hospitals.However,the technique and related skills for performing D3 radical lymphadeneetomy through laparoscope remains to be explored.Based on our previous experiences,D3 radical lymphadeneetomy using artery suspension method and medial-to-lateral approach for advanced gastric cancer is proved to be safe and feasihle.
10.Purification of the Anti-PMOP Effective Fraction from Camellia semiserrata Seed with DiaionHP-20 Macroporous Adsorption Resin
Hongjing LIN ; Xiaojuan WU ; Qian TANG ; Haifeng SHI ; Ling TANG ; Baomin FENG ; Yongqi WANG
China Pharmacy 1991;0(03):-
OBJECTIVE:To study the technical conditions and parameters of DiaionHP-20 macroporous adsorption resin for the purification of the anti-PMOP(primary Type I osteoporosis) active fraction from Camellia semiserrata seed.METHODS: With the elution ratios and purity of total flavonoids and polyphenol from Camellia semiserrata as indexes,the technical parameters of DiaionHP-20 macroporous adsorption resin including the adsorption quantity,the loading sample,the elution concentration and volume of alcohol were investigated.RESULTS: The adsorption quantity of DiaionHP-20 macroporous resin on total flavonoids and polyphenol were 59.5 mg?g-1 and 23.9 mg?g-1 respectively.The optimal technical conditions were as follows:the quantity of drug was 10.5 times that of resin;water-soluble foreign substance was washed off with distilled water weighing 3 times the weight of resin,and total flavonoids and polyphenol were eluted using 25% ethanol weighing 13.5 times the weight of resin.CONCLUSION:DiaionHP-20 macroporous resin had good purification effects on total flavonoids and polyphenol from Camellia semiserrata seeds.The process is simple,low cost,and suitable for lavge-scale production.