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Objective:To investigate the efficacy and safety of en-bloc low-power (22.5 W) holmium laser for enucleation of prostate (LP-HoLEP) in the treatment of benign prostatic hyperplasia (BPH).Methods:The clinical data of 98 patients with BPH who underwent surgical treatment in the Department of Urology, Beijing Friendship Hospital, Capital Medical University from January 2020 to October 2022 were retrospectively analyzed. They were divided into LP-HoLEP group ( n=53) and TURP group ( n=45) according to different treatment methods. Patients in the LP-HoLEP group were treated with en-bloc holmium laser enucleation of prostate, and patients in the TURP group were treated with transurethral resection of prostate (TURP). Perioperative indexes of the two groups were compared, including operation time, postoperative hemoglobin changes, tissue resection amount, postoperative catheter indentation time, postoperative hospital stay, complications, and international prostate symptom score (IPSS), quality of life (Qol) score, maximum urine flow rate (Qmax), postvoid residual volume (PVR) and other indicators were obtained at 3 and 6 months after surgery. The measurement data were tested by Shapiro-Wilk normality test. The measurement data conforming to normal distribution were expressed as mean ± standard deviation ( ± s), independent sample t-test was used for comparison between groups, measurement data of skewness distribution were expressed as median (interquartile distance)[ M( Q1, Q3)], and Mann-Whitney U test was used for comparison between groups. The Chi-square test was used to compare the count data between groups. Results:In the LP-HoLEP group, the operative time was (65.74±22.82) min, the hemoglobin decreased 5.71(3.97, 9.01) g/L, the tissue resection volume was (60.59±24.40) g, and the catheter indinduration time was (3.03±0.91) d. The length of postoperative hospitalization was (4.14±1.05) d. TURP group was (77.04±27.33) min, 11.02(8.89, 16.51) g/L, (39.49±11.32) g, (4.80±0.91) d, (5.98±1.03) d, respectively. All the indexes of LP-HoLEP group were better than TURP group. The differences were statistically significant ( P<0.05). Compared with preoperative, IPSS, Qol score, Qmax and PVR of two groups were significantly improved at 3 months after surgery, but there were no statistical significance between groups ( P>0.05). Conclusion:En-bloc LP-HoLEP is safe and reliable in the treatment of BPH, and has advantages over TURP in terms of tissue resection volume, shortening hospitalization and indwelling catheter time, and reducing intraoperative bleeding.
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Objective:To investigate the clinical efficacy and safety of transurethral flexible ureteroscopy combined with single channel minimally invasive percutaneous nephroscopy in the treatment of complex renal calculi.Methods:A total of 72 patients with complex renal calculi admitted to Beijing Friendship Hospital, Capital Medical University from November 2019 to April 2022 were prospective selected, which were randomly divided into study group and control group by the random number table method, with 36 cases in each group. The control group underwent single channel minimally invasive percutaneous nephrolithotomy, while the study group underwent transurethral flexible ureteroscopy combined with single channel minimally invasive percutaneous nephrolithotomy. The perioperative indexes (operation time, postoperative hospital stay, intraoperative blood loss), stone removal effect, renal function indicators [blood urea nitrogen (BUN), serum creatinine (SCr)] and complication rate were compared between the two groups. Measurement data were expressed as mean ± standard deviation ( ± s), and t-test was used for inter-group comparison. The Chi-square test or Fisher exact probability method were used to compare the count data of two groups. Results:The operation time [(101.05±11.34) min vs (107.84±10.28) min] and postoperative hospital stay [(8.54±3.15) d vs (12.36±4.08) d] in the study group were significantly shorter than those in the control group, and the difference were statistically significant ( P<0.05). The amount of intraoperative bleeding was close to that in the control group, but the difference was not statistically significant ( P>0.05). The primary stone clearance rate and summary stone clearance rate in the study group were 91.67% (33/36) and 100.0% (36/36), respectively, which were significantly higher than 69.44% (25/36) and 83.33% (30/36) in the control group, and the differences were statistically significant ( P<0.05). The postoperative BUN and SCr levels in the study group were (5.24±0.31) mmol/L and (90.65±25.57) μmol/L, respectively, the control group was (7.69±0.78) mmol/L and (131.96±37.80) μmol/L, respectively. BUN and SCr levels in the study group were significantly lower than those in the control group, and the differences were statistically significant ( P<0.05). The total incidence of postoperative complications in the study group was significantly lower than that in the control group (5.56% vs 16.67%), and the difference was statistically significant ( P<0.05). Conclusion:Transurethral flexible ureteroscopy combined with single channel minimally invasive percutaneous nephroscopy is an ideal method for the treatment of complex renal calculi, which has good removal effect, less complications and helps to improve renal function.
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Objective:To investigate the safety and efficacy of individualized transperineal prostate biopsy based on the segmentation of PI-RADS v2 for mpMRI.Method:The clinical data of patients undergoing prostate biopsy in Beijing Friendship Hospital from December 2018 to November 2021 were analyzed retrospectively . A total of 228 patients with a median age of 65(49-83)years underwent biopsy. There were 102(44.7%) with tPSA <10 ng / ml, 108(47.4%) with tPSA 10-20 ng /ml, and 18(7.9%) with tPSA >20 ng /ml, with the median tPSA of 9.87(4.1-89.0)ng /ml. There were 42(18.4%) cases without MRI results, and 32(14.0%)cases with PI-RADS score of 1-2, 47(20.6%)cases of PI-RADS 3, 66(28.9%)cases of PI-RADS 4 and 41(18.1%)cases of PI-RADS 5, respectively.Transrectal ultrasound-guided transperineal prostate targeted biopsy (TB) and systematic biopsy (SB) were performed under local anesthesia or intravenous anesthesia. SB was performed for those without MRI and PI-RADS score of 1-2 (SB group), and TB and SB were performed for those with PI-RADS score of 3-5 (TB+ SB group). Prostate image under ultrasound was cognitively fused according to PI-RADS v2. One needle per area was distributed in 10 areas of each layer(the transition zone anterior and posterior sectors, the peripheral zone anterior, lateral, and medial sectors or central zone in left and right lobe). For those whose prostate length was less than 3cm, 10 needles were punctured, and two needles were added to each lateral lobe of the apex with a total of 14 needles. For those whose prostate length was from 3 to 6 cm, selected two layers with a total of 20 needles. For those with a length greater than 6cm, selected three layers with a total of 30 needles. If there was a suspicious lesion with PI-RADS score of 3-5, two needles were targeted for each lesion.The detection rate and complication rate of prostate cancer and clinically significant prostate cancer (csPCa) in the overall samples were observed, and the difference of the detection rate of prostate cancer and csPCa between the two groups was compared.Results:Of the 228 cases, there were 46 cases undergoing biopsy of one layer, 148 cases of two layers, and 34 cases of three layers, detecting 131 prostate cancer (PCa) diagnosed by pathology, with a detection rate of 57.5%, including 40 cases (17.5%)of clinically insignificant PCa and 91 cases(39.9%)of csPCa. The detection rate of PCa in TB+ SB group was 61.0%(94/154), which was higher than that in SB group, but there was no significant difference ( P=0.114). However, the detection rate of csPCa in TB + SB group was higher than that in SB group, which was 46.8%(72/154)vs. 25.6%(19/74), respectively ( P=0.002). In the combined TB and SB group (TB + SB group), the detection rate of csPCa by TB was 44.8% (69/154), which was higher than that of 33.8%(52/154)by SB( P=0.047). In the TB+ SB group, 7(4.5%) PCa were missed by SB, which was less than 18 cases (11.7%) missed by TB( P=0.022), but csPCa were missed by SB more than that missed by TB( P<0.001). There were 37 cases suffered from complications, with Clavien Dindo classification grade 1 of 29 cases (12.7%), grade 2 of 7 cases (3.1%), and grade 3 of 1 case(0.4%). Conclusions:Individualized transperineal prostate biopsy based on the segmentation of PI-RADS v2 for mpMRI is safe and reliable. Target biopsy by cognitive fusion can improve the detection rate of significant PCa. Systematic biopsy is also an important and essential supplement, which can detect prostate cancer missed by TB. Combined TB and SB are the best choice.
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Objective@#To investigate the epidemiological characteristics and its associated risk factors of lower urinary tract symptoms in young Chinese obese males.@*Methods@#A total of 126 young males aged 20-40 years admitted to Beijing Friendship Hospital, Capital Medical University were enrolled into two different groups in this study, including 74 obese patients visited metabolic weight loss clinic were included in the experimental group, and 52 conditionally healthy persons were included in the control group. Blood pressure (systolic blood pressure, diastolic blood pressure), insulin resistance (fasting blood glucose, insulin, C-peptide), blood lipid metabolism (triglycerides, high-density lipoprotein cholesterol), and sex hormones (estrogen) of the two groups of subjects. Hormones, serum testosterone), C-reactive protein (CRP), International prostate symptom score (IPSS) and quality of life score (QOL). were compared between the two groups of subjects. Comparisons of measurement data between groups were statistically analyze by t test, expressed by mean ± standard deviation (Mean±SD); the correlation between body mass index and LUTS was analyzed by Spearman rank correlation, and the risk factors of LUTS and clinical variables were analyzed by univariate logistic regression. The significant variables were analyzed by multivariate logistic regression.@*Results@#There were significant statistical differences between experimental group and control group in terms of systolic blood pressure [(144.30±15.78) mmHg vs (125.9±66.11) mmHg, P<0.001], diastolic blood pressure [(89.46±12.76) mmHg vs (81.35±4.58) mmHg, P=0.001], and fasting blood glucose [(6.73±3.15) mmol/L vs (5.26±1.47) mmol/L, P=0.016], insulin [(26.60±19.09) mg/dL vs (13.43±7.68) mg/dL, P<0.001], C-peptide [(4.20±1.73) ng/mL vs (1.59±0.52) ng/mL, P=0.001], triglycerides [(2.42±1.88) mg/dL vs (1.45±0.79) mg/dL, P=0.007), estrogen [(52.32±21.77) ng/L vs (42.11±12.19) ng/L, P=0.023] and CRP [(6.49±4.96) mg/L vs (1.62±1.53) mg/L, P=0.037], but no statistical difference regarding high-density lipoprotein [(1.10±0.55) mg/dL vs (1.06±0.26) mg/dL, P=0.669] and serum testosterone [(275.00±100.68) ng/dL vs (280.28±85.52) ng/dL, P=0.823]. In addition, the experimental group had higher IPSS[(3.81±1.88) scores vs (0.69±0.30) scores, P<0.001] and QOL scores [(2.76±0.68) scores vs (0.12±0.08) scores, P<0.001] than the control group, and higher risk of LUTS [86.49% vs 42.31%, P<0.001], especially moderate LUTS ( 21.62% vs 0, P=0.011). Spearman rank correlation analysis showed that obesity (body mass index≥30 kg/m2) was significantly associated with moderate LUTS risk (r=0.407, P<0.001); Univariate logistic regression analysis showed that systolic blood pressure, insulin, and C-peptide were important risk factors of moderate LUTS in young obese patients (P=0.009, 0.029, 0.002). Systolic blood pressure and fasting C-peptide were independent risk factors by multivariate logistic regression analysis (P=0.011, 0.003).@*Conclusions@#The middle severity of LUTS was prevalent in young obese males, and systolic blood pressure and C-peptide were its significant independent risk factors.
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Objective:To analyze the risk factors of stress urinary incontinence after transurethral enucleation of prostate.Methods:A retrospective analysis of the clinical data of 326 patients who underwent transurethral enucleation of prostate at the Beijing Friendship Hospital, Capital Medical University due to benign prostatic hyperplasia from March 2016 to December 2019. Patients were divided into stress urinary incontinence group ( n=78) and non-stress urinary incontinence group ( n=248) according to whether there was stress urinary incontinence one week after the catheter was removed. Age, body mass index, hypertension, diabetes, hyperlipidemia, prostate volume, the time of lower urinary tract symptoms (LUTS), total prostate specific antigen, preoperative indwelling catheter status, operation type, operation time, percentage of hemoglobin reduction and catherization time were compared between the two groups. Measurement data were expressed as mean±standard deviation ( Mean± SD), and t-test was used for comparison between groups; Chi-square test or Fisher exact probability method was used for comparison of count data between groups. Single factor and multivariate Logistic regression analysis were used to screen independent predictors. Results:Age [(73.9±7.3) years vs (69.5±7.8) years, P<0.001], body mass index [(25.6±3.0) kg/m 2vs (24.6±2.9) kg/m 2, P=0.004], the time of LUTS [(5.42±5.65) years vs (5.05±5.19) years, P=0.008], and hypertension (57.7% vs 43.6%, P=0.037), prostate volume [(77.1±33.2) mL vs (62.5±30.2) mL, P<0.001], operation time [(115.0±45.7) min vs (99.8±41.4) min, P=0.006] in stress urinary incontinence group were significantly higher than those in the non-stress urinary incontinence group, the differences were statistically significant. Age ( OR=1.05, 95% CI: 1.02-1.07, P<0.001), body mass index ( OR=1.08, 95% CI: 1.03-1.14, P=0.003), LUTS ( OR=1.21, 95% CI: 1.14-1.29, P=0.015)and prostate volume ( OR=1.11, 95% CI: 1.10-1.11, P=0.011) were independent risk factors for stress urinary incontinence after transurethral enucleation of prostate by multivariate Logistic regression analysis. Conclusion:Age≥70years, body mass index≥25 kg/m 2, LUTS during≥5 years and prostate volume≥75 mL are independent risk factors for stress urinary incontinence after transurethral enucleation of prostate.
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Objective To investigate the epidemiological characteristics and its associated risk factors of lower urinary tract symptoms in young Chinese obese males.Methods A total of 126 young males aged 20-40 years admitted to Beijing Friendship Hospital,Capital Medical University were enrolled into two different groups in this study,including 74 obese patients visited metabolic weight loss clinic were included in the experimental group,and 52 conditionally healthy persons were included in the control group.Blood pressure (systolic blood pressure,diastolic blood pressure),insulin resistance (fasting blood glucose,insulin,C-peptide),blood lipid metabolism (triglycerides,high-density lipoprotein cholesterol),and sex hormones (estrogen) of the two groups of subjects.Hormones,serum testosterone),C-reactive protein (CRP),International prostate symptom score (IPSS) and quality of life score (QOL).were compared between the two groups of subjects.Comparisons of measurement data between groups were statistically analyze by t test,expressed by mean ± standard deviation (Mean ± SD);the correlation between body mass index and LUTS was analyzed by Spearman rank correlation,and the risk factors of LUTS and clinical variables were analyzed by univariate logistic regression.The significant variables were analyzed by multivariate logistic regression.Results There were significant statistical differences between experimental group and control group in terms of systolic blood pressure [(144.30 ± 15.78) mmHg vs (125.9 ±66.11) mmHg,P＜0.001],diastolic blood pressure [(89.46 ± 12.76) mmHg vs (81.35 ±4.58) mmHg,P =0.001],and fasting blood glucose [(6.73 ± 3.15) mmol/L vs (5.26 ± 1.47) mmol/L,P =0.016],insulin [(26.60 ± 19.09) mg/dLvs (13.43 ±7.68) mg/dL,P＜0.001],C-peptide [(4.20±1.73) ng/mL vs (1.59 ± 0.52) ng/mL,P=0.001],triglycerides [(2.42 ± 1.88) mg/dL vs (1.45 ± 0.79) mg/dL,P =0.007),estrogen [(52.32±21.77) ng/L vs (42.11 ± 12.19) ng/L,P =0.023] and CRP [(6.49±4.96) mg/L vs (1.62 ±1.53) mg/L,P =0.037],but no statistical difference regarding high-density lipoprotein [(1.10 ± 0.55) mg/dL vs (1.06 ±0.26) mg/dL,P =0.669] and serum testosterone [(275.00 ± 100.68) ng/dL vs (280.28 ± 85.52) ng/dL,P =0.823].In addition,the experimental group had higher IPSS [(3.81 ± 1.88)scores vs (0.69 ±0.30) scores,P ＜0.001] and QOL scores [(2.76 ±0.68) scores vs (0.12 ±0.08) scores,P＜0.001] than the control group,and higher risk of LUTS [86.49％ vs 42.31％,P ＜ 0.001],especially moderate LUTS (21.62％ vs 0,P =0.011).Spearman rank correlation analysis showed that obesity (body mass index≥30 kg/m2) was significantly associated with moderate LUTS risk (r =0.407,P ＜ 0.001);Univariate logistic regression analysis showed that systolic blood pressure,insulin,and C-peptide were important risk factors of moderate LUTS in young obese patients (P =0.009,0.029,0.002).Systolic blood pressure and fasting C-peptide were independent risk factors by multivariate logistic regression analysis (P =0.011,0.003).Conclusions The middle severity of LUTS was prevalent in young obese males,and systolic blood pressure and C-peptide were its significant independent risk factors.
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Objective@#To analyze the quality of final exam papers of Surgery and Field Surgery for five-year medical students from comprehensive class of Grade 2014, so as to check the mastery of different students, perfect the construction of item banking, verify the quality of teaching and learning, and thus provide references to further teaching reform.@*Methods@#SPSS 21.0 was used for statistical analysis of 133 Surgery and Field Surgery papers of students from comprehensive class of Grade 2014.@*Results@#The highest score was 93.5, the lowest score was 52.0, and the average score was (70.60±9.00). Among those 133 students, six students were failed, occupying 4.51%. The overall difficulty coefficient of examination paper (P) was 0.71, and P value of multiple choice questions and blank-filling questions was 0.4-0.7. Difference degrees (D) of question types were more than 0.600 and the overall reliability was 0.764. Scores of examination paper were generally in normal distribution. The average scores of students form anesthesiology major were higher than those of students from navigation medicine major, but the average scores of students from above two majors were higher than those of students from psychology major, with statistically significant differences (P<0.05).@*Conclusion@#Question types of this paper are comprehensive and reasonable. The overall difficulty is not high, the difference degree is good, the reliability is good and the score distribution is reasonable. However, the question should be further improved, focusing on the reasonable distribution of difficulty of question. In addition, we should strengthen the teaching of the course in students from psychology major.
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Objective To analyze the quality of final exam papers of Surgery and Field Surgery for five-year medical students from comprehensive class of Grade 2014, so as to check the mastery of different students, perfect the construction of item banking, verify the quality of teaching and learning, and thus provide references to further teaching reform. Methods SPSS 21.0 was used for statistical analysis of 133 Surgery and Field Surgery papers of students from comprehensive class of Grade 2014. Results The highest score was 93.5, the lowest score was 52.0, and the average score was (70.60 ±9.00). Among those 133 students, six students were failed, occupying 4.51％. The overall difficulty coefficient of examination paper (P) was 0.71, and P value of multiple choice questions and blank-filling questions was 0.4-0.7. Difference degrees (D) of question types were more than 0.600 and the overall reliability was 0.764. Scores of examination paper were generally in normal distribution. The average scores of students form anesthesiology major were higher than those of students from navigation medicine major, but the average scores of students from above two majors were higher than those of students from psychology major, with statistically significant differences (P<0.05). Conclusion Question types of this paper are comprehensive and reasonable. The overall difficulty is not high, the difference degree is good, the reliability is good and the score distribution is reasonable. However, the question should be further improved, focusing on the reasonable distribution of difficulty of question . In addition , we should strengthen the teaching of the course in students from psychology major.
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Objective To evaluate the safety and efficacy of bipolar transurethral plasmakinetic enucleation of the prostate (PKEP) with PKRP for benign prostatic hyperplasia (BPH) with prostate volumes over 80 ml.Methods A total of 78 patients of BPH with prostate volume more than 80 ml were retrospectively analysed to either PKEP (n =41) or PKRP (n =37).All patients were assessed preoperatively and followed up of clinic at the 3rd,6th,and 12 th month postoperatively.Baseline characteristics of the patients,intraoperative events (operation time,bleeding volume),postoperative events (bladder irrigation time,catheter time) and postoperative effect evaluation (IPSS score,QOL score and Qmax) were recorded.t test was used for measurement data expressed by ((x) ± s) among groups.And chi-square test was used for Enumeration data expressed by rate(％) between the two groups.Results The operation time,the decrease of hemoglobin,irrigation time and the catheter time in the PKEP and PKRP were (100.7 ±31.2),(150.1 ±30.3) min,(1.1 ±0.5),(2.1 ±0.8) g/dl,(16.9 ±4.3),(31.8 ± 8.3) h,(33.4 ± 11.2),(51.7 ± 18.6) h,respectively.Those indexes in the PKEP group were significantly better than those in the PKRP group (P ＜ 0.05).The baseline values and postoperative outcome indices of PKEP group at the 3rd,6th,and 12 th month were IPSS (28.01 ± 5.31),(15.01 ± 3.62),(8.01 ±2.30),(7.83±2.11)、QOL(4.5 ±0.8),(3.5 ±0.6),(1.3 ±0.4),(1.1 ±0.5)、Qmax(6.21 t2.09),(13.24 ± 2.31),(15.33 ± 2.44),(17.65 ± 3.21) mL/s,residual urine volume (75.02 ± 25.21),(10.87 ±6.16),(10.55 ± 5.21),(9.97 ± 5.63) ml.All the indices after 3 months of operation were improved compared with baseline values (P ＜ 0.05).The incidence of complications in PKEP group (17.1 ％,7/41) was lower than that in PKRP group (27.0％,10/17) (P =0.288).Conclusion PKEP is a safe and efficient treatment of BPH patients with prostate volume more than 80 ml.Compared with PKRP,PKEP provides less risk of hemorrhage and shorter catheter time,the operation time,irrigation time.
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Objective To investigate the prognostic factors of renal cell carcinoma and to establish a prognostic model for patients with non-metastasis renal cell carcinoma (RCC) after operation.Methods We retrospectively reviewed the clinical data of patients with RCC who underwent radical or partial nephrectomy from January 2008 to December 2012,including 392 males (67.6％) and 188 females (32.4％),with an average age of 56 years(range 24-86 years).The average diameter of tumor was 4.8 cm (range 1.5-17.5 cm).The pathological slides of tumor tissue were reviewed by pathologist,and the tissue microarray (TMA) were constructed.The immunohistochemical staining of TMA were carried out.All patients were followed up the prognosis information of the overall survival (OS),cancer specific survival (CSS) and progression free survival (PFS).Based on these data,univariate and multivariate analysis and survival analysis were performed.Independent prognostic factors related to different follow-up endpoints of patients were screened out.A Nomogram prognostic model for RCC was established and verified.Internal validation were performed by boots value analysis.Results Among 580 cases,160 cases (27.6％) accepted nephron sparing surgery and 420 cases (72.4％) radical nephrectomy,included 514 cases (88.6％) of laparoscopic surgery and 66 cases (11.4％) of open surgery.There were 468 cases of clear cell carcinoma (80.7％),56 cases of papillary carcinoma (9.7％),32 cases of chromophobe cell carcinoma (5.5％),24 patients with other subtypes of cancer cells (4.1％).In pathological staging,stage Ⅰ,Ⅱ,Ⅲ,Ⅳ were 442 cases (76.2％),88 cases (15.2％),48 cases (8.3％),2 cases (0.3％),respectively.There were 424 cases (73.1％) with high expression of CA9,and 156 cases (26.9％) with low expression.The median followup was 66 (4-82) months,and 41 cases (7.1％) were lost of follow-up.For 3 and 5 years,OS,CSS and PFS were 83.4％,88.2％,72.4％ and 69.6％,73.0％,55.8％ respectively.Multivariate analysis showed that tumor pathological subtypes,tumor stage,tumor diameter and positive expression of carbonic anhydrase 9 (CA9) were independent prognostic factors associated with the survival of RCC patients.The Nomogram prognostic model was established by the above four factors.The established Nomogram prognostic model for RCC patients was verified by Harrell's consistency index,and the c-index of OS,CSS and PFS of RCC patients were 0.72 (95％ CI 0.69-0.75),0.77 (95％ CI 0.74-0.81),0.79 (95％ CI 0.76-0.83),respectively.Conclusions Tumor pathological subtypes,staging,tumor diameter and CA9 are independent risk factors for patients with non metastatic renal cell carcinoma.The established Nomogram prognostic model certified by internal validation should be tested by large samples and multicenter studies need tested.
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Objective To explore the value of practicing PBL which was guided by MDT in teaching diagnoses and treatments of war wound and trauma caused by compound agents.Methods An emulational war wound case caused by compound factors was designed and a multi-disciplinary team been organized,then totally 45 interns who would graduate in 2017 were divide into two groups randomly,experimental group which had 23 cases received PBL model combined with MDT followed six step procedure which included case preparation by teachers,independent analysis and group discussion by interns,problem extraction by teachers and division of solution by interns before class,then answering and debating problems by interns in class,conclusion and reporting after class in the end,while the control group which had 22 cases received traditional teaching model in accordance with common case discussion in class including characteristics of patient,diagnosis and diagnostic basis,examinations needed to carry out,first aid measures and professional treatments.The effect of new teaching model was evaluated by assessment in class and questionnaire after class.The data was analyzed through Chi-square test by SPSS 22.0.Results Class assessment showed 18 (78.3％) interns in experimental group displayed good abilities of proposing,analyzing and resolving medical problem,as well as good presentation and speech skills.Questionnaire survey showed that not only clinical teaching of war wound and trauma could meet the demands of talent training in battle-field rescue,but also displayed new model,which could help interns to enhance abilities of first-aid and treatment of war wound on future war field,reinforce the consciousness of military medical support and service.In addition,it could clear confusion more professionally and strengthen teamwork and overall importance.Conclusion Applying PBL combined with MDT in teaching diagnoses and treatments of war wound and trauma can not only help interns to review and retain important knowledge of related subjects,but also improve the abilities of interns in clinical diagnoses and treatments,and moreover,it merges the medical knowledge and war wound cure together organically.In short,the new model is well worth applying in clinical teaching and military medical education because of its excellent effects.
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Appendectomy involves several key concepts in the foundation course of operative surgery. So it is the best choice to test whether the students can be flexible in using and fully under-stand what they learned about the basic theories and skills of appendectomy. Changzheng Hospital applies Wechat-ald team-based learning and problem-based learning teaching in appendectomy-related courses by actively delivering messages with content of educational administration, basic knowledge, clinical images and videos to the micro-groups, achieving instantly efficient information dissemination and interactive communication. It breaks the shackles of traditional classroom in space and time, mo-bilizes students' enthusiasm for learning, enhances their communicational skills and sense of team-work and improves students' comprehensive analysis and practical ability, therefore achieving better teaching results.
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Objective To discuss the major complications of urologic laparoscopic surgery.Methods From January 2004 to May 2012,2 250 urologic laparoscopic surgical procedures were performed in our institute,including radical nephrectomies (690 cases),partial nephrectomies (285 cases),simple nephrectomies (126 cases),nephrouretectomies (270 cases),renal cyst operations (281 cases),adrenalectomies (310 cases),pyeloplasties (93 cases),ureterolithotomies (48 cases),radical prostatectomies (43 cases),radical cystectomies (49 cases),donor nephrectomies (50 cases) and retroperitoneal lymph node dissection (5 cases).Medical records of each procedure were retrospectively evaluated.Intraoperative and postoperative complications were graded according to the Satava and Clavien classifications,respectively.Major complications were defined as Satava grade Ⅱ or higher,and Clavien grade Ⅲ or higher.Results Among the 2 250 laparoscopic procedures,53 major complications occurred,resulting in a major complication rate of 2.36％.Major intraoperative and postoperative complication rates were 1.16％ (26 cases) and 1.20％ (27 cases),respectively.Vascular injuries were the most common intraoperative complications (58％) while the proportion of visceral injury was the second as 42％.The most common postoperative complication was bleeding (19 cases).Among them,3 cases died of multiple organ failure after second operations.Other major postoperative complications included wound infection (2 cases),urine leakage (1 case),adrenal crisis (1 case),ileus (2 cases) and incisional hernia (Ⅰ case) and 1 death caused by pulmonary embolism.Conclusion Major complications,including death,may occur at any stages during the urologic laparoscopic surgery.
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In view of the characteristics of the learning curve for medical students,the ' three phases and seven steps' case-based learning model was designed and implemented by Changzheng Hospital,the Second Military Medical University.This model was carried out in the theoretical study stage,the first round of internship and the second round of internship.Cases of single diseases,multiple diseases involving variant systems and a variety of diseases involving different department were enrolled for analysis and discussion.Implementation of each case study was divided in seven procedures:determining learning objective and choosing typical case,studying case and raising questions,panel discussions and establishment of common problems,looking up for information to answer questions and preparing report slide,large group discussions,summary and evaluation.'Three phases and seven steps' case based learning model ensure the width and depth of basic medical knowledge learned by the students.With the practice of this model,the basic medical knowledge was constructed systemically and comprehensively by medical students.Students' abilities of problem-analyzing and problem-solving as well as clinical research were developed.This model was effective according to our practice and was worth spreading out.
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Objective To report the author' s experience with the laparoscopic radical nephrectomy and eraluate it's saftey and therapy.Methods The retrospective analysis was performed on 600 consecutive patients undergoing laparoscopic radieal nephrectomy in the author' s institute from March 2004 to March 2012.There were 380 male and 220 female patients with the average age of 55 years (16-84 years).Five hundred and sixty cases and 40 cases underwent retroperitoneal and transperitoneal surgery respectively.The operative time,estimated blood loss,postoperative hospital stay,complications and the time of complete convalesceuce were recorded.Results Thirteen cases were converted to open surgery due to severe adhesion and severe bleeding.The mean operative time was 110 min(70-320 min).The medium estimated blood loss was 90 mL(30-830 mL) and 15 cases required blood transfusion.The mean drainage time was 50 h(36-72 h),the mean time to first oral intake was 23 h (19-43 h) and the mean postoperative hospital stay was 7 d(5.5-10 d).There were 4 patients with severe complication.Conclusion Laparscopic radical nephrectomy is safe and effective.It has been the standard therapeutic modality for localized renal cell carcinoma.
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As a fundamental medical course,operative surgery is featured by basic skill acquirement and plenty of practice.The teaching method for operative surgery is different compared with that for other medical course.Personal digital assistant (PDA) was adopted to facilitate the teaching of the course and this was an innovation.By taking advantage of its multiple electronic functions and various application softwares,PDA was applied to arrange class schedule,show teaching demonstration,make action analysis and give feedback and incentives of both students and teachers.In this way,PDA was proved to be an effective educational media for teaching of operative surgery.
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Regional anatomy of inguinal hernia is one of the teaching difficulties.The students always feel confused due to deficiency of visual and vivid teaching materials.The thesis analyzed the efficacy of using high-definition video of laparoscopic inguinal hernia repair (LIHR) in the clinical teaching of inguinal region anatomy aiming to deepen the understanding,inspire the enthusiasm and initiative of students and improve the quality of teaching.
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Objective To explore the diagnosis and treatment features of tuberous sclerosis complex associated renal cell carcinoma.Methods A 22-year-old boy with a childhood history of epilepsy and mental retardation presented with a complaint of intermittent painless gross hematuria for the past 2 years.After superselective left renal artery embolization was done twice in the past year, painless gross hematuria was still repeated with 6- 10 months intervals.Physical examination showed retarded face, obesity, visible facial angiofibroma and a ditch fibroma.CT scan showed irregular lesions.The largest cross-section 14.2 cm × 9.0 cm in the left kidney was inhomogeneous enhanced from 45 - 54 HU in the plain phase to 60 - 78 HU in the contrast phase.Filling defect in the left renal vein and multiple fat-density lesions (CT value of -25 - -38 HU) with the largest cross-section 7.2 cm× 5.7 cm in the right kidney were also found in contrast CT scan.The PUBMED and CBM database were reviewed.Results Open retroperitoneal radical left nephrectomy was performed.Pathology showed renal clear cell carcinoma and renal vein thrombosis.There was no tumor recurrence or distant metastasis at 4-month follow-up.Conclusions Tuberous sclerosis complex associated renal cell carcinoma is rarely reported.Timely nephron-sparing surgery is necessary when the diagnosis is established, or radical nephrectomy is also necessary if nephron-sparing surgery is impossible.
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Surgical base teaching is an important part of medical education.It is the important tache whether the medicos can become excellent doctors.The thesis analyses the young surgeon's problems in their working abilities in hospital,and discusses the strategies of how to improve the quality of surgical teaching,aiming to establish a solid foundation for the cultivation of the medicos.
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Objective To compare the effects of fundus-first laparoscopic cholecystectomy and laparoscopic subtotal cholecystectomy in complicated cholecystolithiasis cases. Methods The effects of fundus-first laparoscopic cholecystectomy (n = 21) and laparoscopic subtotal cholecystectomy (a = 18) in the 39 cases of complicated chole-cystolithiasis from our hospital within 2 years were analyzed retrospectively. Results The operation time in subtotal laparoscopic cholecystectomy group was shorter than in fundus-first laparoscopic cholecystectomy group (88.89±18.11) min vs. (109.52±21.79) min, P < 0.05). Less blood lose (82.78±44.96) ml and fluid replacement (847.22±169.32)ml during the operation were observed in the former group than those in the later group (116.67±53.23) ml and (964.29±147.60) ml, respectively, P < 0.05). However, the patients' postoperative recovery time and the duration of postoperative hospital staying were similar in the two groups(5.56±1.20) days vs. (5.29±1.38) days, P > 0.05). Conclusions Proper use of subtotal laparoscopic cholecystectomy in complicated cholecystolithiasis cases can simplify the operation and obligate the operation time, which will increase the safety of the operation with the outcome similar to fundus-first laparoscopic cholecystectomy.