1.Anatomical Localization of the Gallbladder Duct and Feasibility Study on Bile Duct Exploration Through the Cyctic Duct for Secondary Choledocholithiasis:Report of 100 Cases
Dexing CHEN ; Wenchao LIU ; Xiuquan ZHU
Chinese Journal of Minimally Invasive Surgery 2025;25(3):135-140
Objective To investigate the local anatomical characteristics of the cyctic duct and the feasibility of bile duct exploration through the cystic duct for stone removal and primary suture.Methods From February to September 2023,100 cases of secondary choledocholithiasis(SCL)were treated with laparoscopic transcystic common bile duct exploration(LTCBDE).During the operation,6 indicators were measured,including the direction of the gallbladder duct joining the common bile duct,the inner diameter of the gallbladder duct,the length of the gallbladder duct incision,the length of the gallbladder duct parallel to the common bile duct,the distance between the incised gallbladder duct or common bile duct and the upper edge of the duodenum,and the diameter of the stone taken by the cholangioscopy.Results The direction of the gallbladder duct joining into the common bile duct:92 cases at 9-12 o'clock,of which 76 cases at 10 and 11 o'clock,accounting for 76%;1 case each at 1 and 2 o'clock,accounting for 2%;2 and 4 cases at7 and 8 o'clock respectively,accounting for6%.The inner diameter of the cystic duct ranged from 3 mm to13 mm,with a median of 5.0 mm.The length of the common bile duct opened:21 cases(21%)had the common bile duct cut open,with an incision of 1-5 mm and a median of 3.0 mm.The parallel length of gallbladder duct and common bile duct:there was a parallel length of 2-40 mm and a median of 10.0 mm in36 cases.The distance between the incised gallbladder duct or common bile duct and the upper edge of the duodenum was5-20 mm,with a median of 15.0 mm.Intraoperative choledochoscope was used in 90 cases to remove stones,with a total of 128 stones removed.The diameter of the stones ranged from 1.5 mm to 22.0 mm,with a median of 5.0 mm.All the100 cases of LTCBDE were successful.A total of 83 cases(83%)were followed up for 3 months after surgery.After discharge,their appetite returned to normal,and they resumed normal life and work.There were no symptoms of bile duct stones such as abdominal pain,jaundice,or fever,and their liver function was normal.B-ultrasound showed a diameter of 5-10 mm for the common bile duct,with a median of 7 mm,and no postoperative stenosis.Conclusions Exploring the common bile duct through the cystic duct is feasible,with no or minimal damage to the common bile duct and no damage to the Oddi sphincter.It is the best way and surgical technique for laparoscopic exploration and stone removal via choledochoscope in SCL.
2.Application of Membrane Anatomy in Laparoscopic Radical Resection of Rectal Cancer
Nan LIU ; Shuai SU ; Wenchao LIU ; Dexing CHEN ; Qi LIU
Chinese Journal of Minimally Invasive Surgery 2025;25(11):647-653
Objective To explore the clinical efficacy of membrane anatomy in laparoscopic radical resection of rectal cancer.Methods A retrospective cohort study was conducted,involving 33 patients who underwent laparoscopic radical resection of rectal cancer guided by membrane anatomy(observation group)from April 2023 to April 2024,compared with 35 patients who underwent traditional total mesorectal excision(control group)from March 2022 to March 2023.Surgical indicators(duration of surgery,intraoperative blood loss,and number of lymph nodes dissected)and postoperative recovery were compared between the two groups.Results There was no statistically significant difference in the operation time between the two groups[(173.8±14.7)min in the observation group vs.(179.1±15.3)min in the control group,t=-1.437,P=0.156].There were also no statistically significant differences in the postoperative hospital stay[(9.4±1.4)d vs.(9.8±2.4)d,t=-0.859,P=0.394]and in the incidence of various complications[12.1%(4/33)vs.20.0%(7/35),χ2=0.778,P=0.378].The intraoperative blood loss in the observation group was significantly less than that in the control group[(34.6±10.8)ml vs.(81.0±14.3)ml,t=-15.156,P=0.000].The number of lymph nodes dissected in the observation group was significantly higher than that in the control group(19.8±1.3 vs.12.4±1.9,t=18.684,P=0.000).The time to first flatus after surgery in the observation group was shorter than that in the control group[(50.4±6.5)h vs.(55.2±8.9)h,t=-2.557,P=0.013].The postoperative drainage time in the observation group was shorter than that in the control group[(5.9±1.1)d vs.(6.5±1.0)d,t=-2.532,P=0.014].A total of 66 cases were followed up for 8-39 months,with a median time of 25 months.The observation group had no metastasis,local recurrence,or death,while the control group had 1 case of liver metastasis,1 case of local recurrence,and 1 case of death from other systemic diseases.Conclusions The application of membrane anatomy in laparoscopic radical resection of rectal cancer can ensure complete mesorectal excision,expand the surgical field of view,minimize intraoperative bleeding,and enhance the thoroughness of lymph node dissection,thereby improving surgical quality.However,it fails to shorten the operation time.
3.Original species identification of Epimedii Folium (Epimedium) and their distributional responses to climate change
Yiheng WANG ; Kangjia LIU ; Meng LI ; Yuran BAI ; Chengcai ZHANG ; Binbin YAN ; Wenpan DONG ; Yan ZHANG ; Jiahui SUN
Science of Traditional Chinese Medicine 2025;3(2):178-185
Background: Epimedii Folium is well known for its medicinal value. Four Epimedium species—Euphorbia brevicornu, E. sagittatum, E. pubescens, and E. koreanum—are the designated original plants of Epimedii Folium. Objective: The objective of this study is to facilitate the identification of the four Epimedium species and clarify their distributional responses to climate change. Methods: In this study, we assessed the genetic divergence of the four species and identified the molecular markers for species identification by using chloroplast genome sequences. Furthermore, we forecasted the distribution of potentially suitable regions of the four species Folium under climate change. Results: The authors obtained 26 chloroplast genome sequences of the four species and identified 1393 variable sites and 273 indel events. Genetic divergence analyses revealed that E. koreanum had long genetic distance from the other three species. Compared with the complete chloroplast genome, six hypervariable markers were discovered, and both rps4-trnL and ndhF were chosen as Epimedii Folium-specific DNA barcodes. Climate change is expected to influence the geographical distribution of the four Epimedium species, which were primarily found in China, South Korea, and Japan, leading to both expansion and contraction of their distribution ranges. Conclusion: Two identification markers were selected as the specific DNA barcodes for all four original plant species of Epimedii Folium. In addition, the shift of potential suitable area in various climate scenarios has been predicted. With the support of identification markers and the dynamics of suitable distribution areas, we are able to establish a foundation for the sustainable utilization of medicinal Epimedium resources in the future.
4.Anatomical Localization of the Gallbladder Duct and Feasibility Study on Bile Duct Exploration Through the Cyctic Duct for Secondary Choledocholithiasis:Report of 100 Cases
Dexing CHEN ; Wenchao LIU ; Xiuquan ZHU
Chinese Journal of Minimally Invasive Surgery 2025;25(3):135-140
Objective To investigate the local anatomical characteristics of the cyctic duct and the feasibility of bile duct exploration through the cystic duct for stone removal and primary suture.Methods From February to September 2023,100 cases of secondary choledocholithiasis(SCL)were treated with laparoscopic transcystic common bile duct exploration(LTCBDE).During the operation,6 indicators were measured,including the direction of the gallbladder duct joining the common bile duct,the inner diameter of the gallbladder duct,the length of the gallbladder duct incision,the length of the gallbladder duct parallel to the common bile duct,the distance between the incised gallbladder duct or common bile duct and the upper edge of the duodenum,and the diameter of the stone taken by the cholangioscopy.Results The direction of the gallbladder duct joining into the common bile duct:92 cases at 9-12 o'clock,of which 76 cases at 10 and 11 o'clock,accounting for 76%;1 case each at 1 and 2 o'clock,accounting for 2%;2 and 4 cases at7 and 8 o'clock respectively,accounting for6%.The inner diameter of the cystic duct ranged from 3 mm to13 mm,with a median of 5.0 mm.The length of the common bile duct opened:21 cases(21%)had the common bile duct cut open,with an incision of 1-5 mm and a median of 3.0 mm.The parallel length of gallbladder duct and common bile duct:there was a parallel length of 2-40 mm and a median of 10.0 mm in36 cases.The distance between the incised gallbladder duct or common bile duct and the upper edge of the duodenum was5-20 mm,with a median of 15.0 mm.Intraoperative choledochoscope was used in 90 cases to remove stones,with a total of 128 stones removed.The diameter of the stones ranged from 1.5 mm to 22.0 mm,with a median of 5.0 mm.All the100 cases of LTCBDE were successful.A total of 83 cases(83%)were followed up for 3 months after surgery.After discharge,their appetite returned to normal,and they resumed normal life and work.There were no symptoms of bile duct stones such as abdominal pain,jaundice,or fever,and their liver function was normal.B-ultrasound showed a diameter of 5-10 mm for the common bile duct,with a median of 7 mm,and no postoperative stenosis.Conclusions Exploring the common bile duct through the cystic duct is feasible,with no or minimal damage to the common bile duct and no damage to the Oddi sphincter.It is the best way and surgical technique for laparoscopic exploration and stone removal via choledochoscope in SCL.
5.Application of Membrane Anatomy in Laparoscopic Radical Resection of Rectal Cancer
Nan LIU ; Shuai SU ; Wenchao LIU ; Dexing CHEN ; Qi LIU
Chinese Journal of Minimally Invasive Surgery 2025;25(11):647-653
Objective To explore the clinical efficacy of membrane anatomy in laparoscopic radical resection of rectal cancer.Methods A retrospective cohort study was conducted,involving 33 patients who underwent laparoscopic radical resection of rectal cancer guided by membrane anatomy(observation group)from April 2023 to April 2024,compared with 35 patients who underwent traditional total mesorectal excision(control group)from March 2022 to March 2023.Surgical indicators(duration of surgery,intraoperative blood loss,and number of lymph nodes dissected)and postoperative recovery were compared between the two groups.Results There was no statistically significant difference in the operation time between the two groups[(173.8±14.7)min in the observation group vs.(179.1±15.3)min in the control group,t=-1.437,P=0.156].There were also no statistically significant differences in the postoperative hospital stay[(9.4±1.4)d vs.(9.8±2.4)d,t=-0.859,P=0.394]and in the incidence of various complications[12.1%(4/33)vs.20.0%(7/35),χ2=0.778,P=0.378].The intraoperative blood loss in the observation group was significantly less than that in the control group[(34.6±10.8)ml vs.(81.0±14.3)ml,t=-15.156,P=0.000].The number of lymph nodes dissected in the observation group was significantly higher than that in the control group(19.8±1.3 vs.12.4±1.9,t=18.684,P=0.000).The time to first flatus after surgery in the observation group was shorter than that in the control group[(50.4±6.5)h vs.(55.2±8.9)h,t=-2.557,P=0.013].The postoperative drainage time in the observation group was shorter than that in the control group[(5.9±1.1)d vs.(6.5±1.0)d,t=-2.532,P=0.014].A total of 66 cases were followed up for 8-39 months,with a median time of 25 months.The observation group had no metastasis,local recurrence,or death,while the control group had 1 case of liver metastasis,1 case of local recurrence,and 1 case of death from other systemic diseases.Conclusions The application of membrane anatomy in laparoscopic radical resection of rectal cancer can ensure complete mesorectal excision,expand the surgical field of view,minimize intraoperative bleeding,and enhance the thoroughness of lymph node dissection,thereby improving surgical quality.However,it fails to shorten the operation time.
6.Questionnaire Survey on General Medicine and Pre-hospital First Aid Knowledge Among People in Ludian County,Yunnan Province
Weiyu ZHOU ; Dexing YANG ; Qiang WANG ; Zhenfang WANG ; Kai FU ; Jiefu TANG ; Shengzhe LIU ; Ying LUAN ; Min LI ; Rong LIU
Journal of Kunming Medical University 2024;45(3):118-126
Objective To explore the public's cognition and attitude towards general medicine,general practitioners,and pre-hospital first-aid knowledge in Ludian County,Yunnan Province,to find out the training and learning methods that are more acceptable to the public for this kind of related knowledge,and to propose targeted solutions.Methods A complete random sampling survey was conducted among the nucleic acid collection office at the gate of the vegetable market from October 15,2022,to December 30,2022,and the outpatient clinic of Wenping Street Health Center from January 1,2023,to February 28,2023,by using electronic questionnaire and paper questionnaire.Results Nearly 50%of the people in Ludian County of Yunnan Province lack the knowledge of general medicine and pre-hospital emergency care,especially the knowledge of electrical defibrillation.People with higher education and the medical profession have a higher understanding of general medicine,and people with a higher understanding of general medicine are more willing to participate in pre-hospital emergency care.The average Ridit value is:very familiar with general medicine(0.774)>Knowledge of some general practices(0.565)>Never heard of general practice(0.400).The higher education level and the more comprehensive understanding of general medicine had a positive impact on participation in pre-hospital emergency care,with B values of 0.624 and 0.619,OR 95%CI of 1.867(1.544~2.257)and 1.857(1.298~2.657),respectively.Taking medical staff as a reference,the B value of medical students was = 0.942,P = 0.234,the difference was not significant,and the B value of non-medical professional population was all less than 0,the effect is negative.In addition,most people have a positive attitude towards learning pre-hospital first aid,and more than 70%of people are willing to learn and train related knowledge of pre-hospital first aid.Conclusions People in urban areas of Ludian County,Yunnan Province have poor understanding of general practice,low recognition of general practitioners,low demand for general practitioners,and lack of awareness of the importance of pre-hospital emergency treatment.Because of the cognitive differences among different groups,it is necessary to conduct specific training for different groups.
7.Research progress on airway effects of sevoflurane in children with developing asthma
The Journal of Clinical Anesthesiology 2024;40(6):657-660
Asthma is a common chronic inflammatory airway disease during childhood development,which seriously affects the quality of life and life health of children.Under the influence of various factors such as anesthetic drugs and surgical stimulation,asthma is easily induced and aggravated in the periopera-tive period.Sevoflurane is the most commonly used inhalation anesthetic in pediatric anesthesia,and differ-ent concentrations of sevoflurane can produce different effects on the airway of children with asthma.In this paper,the effects of sevoflurane on airway mechanics,airway inflammation,and airway remodeling in chil-dren with asthma were reviewed,providing reference for future intraoperative medication and treatment of children with asthma.
8.Clinical analysis of 4 cases of acute nitrite food poisoning
Yingying HE ; Tuerdi REYILA ; Jie LI ; Qian LI ; Yi LIU ; Dexing SUN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2024;42(4):286-288
Nitrite has high toxicity and is commonly found in food poisoning. Poisoned patients may experience cyanosis of the skin and lips, nausea, vomiting, and difficulty breathing or coma may occur in severe cases. Four cases of nitrite poisoning patients who were transferred from primary hospitals to the Third Affiliated Hospital of Gansu University of Chinese Medicine, the First People's Hospital of Baiyin were reported. After symptomatic supportive treatment with special antidote methylene blue, oxygen inhalation, blood purification, etc., the patients recovered and were discharged after 4 days of treatment.
9.Clinical analysis of 4 cases of acute nitrite food poisoning
Yingying HE ; Tuerdi REYILA ; Jie LI ; Qian LI ; Yi LIU ; Dexing SUN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2024;42(4):286-288
Nitrite has high toxicity and is commonly found in food poisoning. Poisoned patients may experience cyanosis of the skin and lips, nausea, vomiting, and difficulty breathing or coma may occur in severe cases. Four cases of nitrite poisoning patients who were transferred from primary hospitals to the Third Affiliated Hospital of Gansu University of Chinese Medicine, the First People's Hospital of Baiyin were reported. After symptomatic supportive treatment with special antidote methylene blue, oxygen inhalation, blood purification, etc., the patients recovered and were discharged after 4 days of treatment.
10.Micro-incision of the Cystic Duct Confluence Technique in Laparoscopic Choledochal Exploration Lithotomy:Report of 267 Cases
Nan LIU ; Qi LIU ; Xiaoyong LI ; Tingting WANG ; Dexing CHEN
Chinese Journal of Minimally Invasive Surgery 2024;24(4):245-249
Objective To summarize the experience of laparoscopic common bile duct exploration(LCBDE)by means of micro-incision of the cystic duct confluence.Methods From January 2020 to March 2023,267 cases of cholecystolithiasis complicated with choledocholithiasis were given LCBDE by means of micro-incision through the cystic duct confluence.An incision was made along the inferior wall of the cystic duct to the conjunctive part of the common bile duct,and the lateral wall of the common bile duct was cut for 3-5 mm longitudinally.The bile duct exploration and stone extraction were completed under choledochoscope.Primary suture was performed.An abdominal drainage tube was placed.Results The operations were completed in all the 267 cases and the common bile duct stones were thoroughly removed.The operation time was 45-128 min(mean,96.5±9.7 min),the postoperative drainage indwelling time was 3-13 d(mean,5.1±1.2 d),and the postoperative hospitalization time was 5-13 d(mean,6.8±1.1 d).Biliary leakage occurred in 4 cases and was cured after abdominal drainage for 9-11 d.Postoperative fever was noted in 1 1 cases and was treated with anti-inflammatory therapy for 1-3 d.Abdominal abscess developed in 2 cases and was cured by abdominal drainage.A total of 242 cases(90.6%)were followed up for 6-39 months(median,11 months),of which 66 cases were followed up for more than or equal to 36 months.Residual stones were found in 2 cases,stone recurrence was noted in 2 cases,and no choledochal stenosis was found.Conclusion Laparoscopic lithotomy with micro-incision of the cystic duct confluence has a good clinical effect in the treatment of choledocholithiasis.

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