【Objective】 To analyze the characteristics and mobility of the overlapping population of voluntary blood donation and plasmapheresis donation, so as to provide a scientific basis for the formulation of recruitment and retention strategies for blood donation and plasmapheresis donation, and to further propose a scientific reference for the decision-making of blood banks and plasmapheresis station management in China. 【Methods】 The basic information of blood donors and plasmapheresis donors in two counties in Guangyuan, Sichuan Province, which carried out whole blood collection and plasmapheresis collection from the establishment of the station to July 31, 2021 was statistically compared and analzed using the chi-square test and Post hoc testing test. 【Results】 As of July 31, 2021, a total of 50 658 people participated in blood donation and 63 375 people participated in plasmapheresis donation in Jiange County and Cangxi County, with a total overlap of 6 189 people. In the two regions, 16 458 (35.2%) people aged 40 to 50, and 35 558 people (56.1%) were over 50 years old. Among the overlapping population, 2 496 (40.3%) were 40 to 50 years old, accounted for the largest proportion, and 3 146 (50.8%) were males. Significant differences were noticed in age (P<0.001) and gender (P<0.001). There was a shift in dontion in 5 183, including 2 072 people from plasma to blood and 3 111 people from blood to plasma, among which 2 671 (51.5%) were men and 3 632 (70.1%) were over 50 years old, with significant differences in gender (P<0.05) and age (P<0.001). 【Conclusion】 There were a small number of donors donating both blood and plasma in Jiange and Cangxi, and men aged 40 to 50 were the majority, and people over 50 years old were more likely to shift the donation goals. The vast majority of donors have a single and fixed donation goal (blood or plasma), and are not easy to change.

【Objective】 To analyze the dynamic relationship between the setting up of plasmapheresis station and the volume of voluntary blood donation collected using panel vector autoregressive model, so as to provide scientific reference for the management policies of blood stations and plasmapheresis stations in China. 【Methods】 The data collected from blood stations in seven administrative regions of Guangyuan, Sichuan Province from 2011 to 2021, as well as plasma collection data from two plasmapheresis stations in the region within two years since their operation, were collected. A panel vector autoregressive model was constructed. Impulse response analysis and variance decomposition analysis were used to analyze the impact and time lag effects of simulated plasmapheresis station settings on the collection volume of voluntary blood donation. Covariance analysis was used to explore whether the establishment of plasmapheresis station had an impact on the volume of voluntary blood donation collected after excluding the impact of initial value differences. 【Results】 The pulse response results showed that after the plasmapheresis station was set up, there was a negative impact effect on the voluntary blood donation collection volume at the first stage, and its impact began to rise after the second stage, reached the highest value in the third stage, and then began to decline. After the seventh stage, it tended to be stable. However, within the 10 stage range, the confidence interval for the response strength of voluntary blood donation collection volume always included 0, indicating that the response of blood collection volume to the plasmapheresis station setting in the region was not statistically significant. The results of variance decomposition showed that the contribution of collection volume of voluntary blood donation to their own impact reached 94.3%. In terms of the contribution of plasmapheresis station factors, the number of plasma donors has a relatively greater impact on the volume of voluntary blood donation collected(2.2%). Covariance analysis showed that after removing the initial confounding factors, whether to establish a plasmapheresis station had no significant impact on blood donation volume in the two groups of regions (P>0.05). 【Conclusion】 The establishment of a new plasmapheresis station will have a certain impact on blood collection volume of blood stations in the region in a short term, but in the long term, it may not directly affect the voluntary blood donation collection in the region.

【Objective】 To explore the difference of demographics and influencing factors of motivations between whole blood donors and plasmapheresis donors, so as to provide scientific reference for effective recruitment strategy. 【Methods】 A total of 200 whole blood donors from Guangyuan Blood Center and 200 plasmapheresis donors from Jiange Plasmapheresis Station were selected in August 2021 for on-site questionnaire survey using the method of cross-sectional survey. Statistical analysis was performed by chi-square test, univariate and multivariate logistic regression. 【Results】 There were significant differences in gender, age, occupation, education level and annual family income between whole blood donors and plasmapheresis donors (P<0.05). Males accounted for a large proportion of whole blood donors(124/196, 63.3%), whereas females accounted for a large proportion of plasmapheresis donors(117/198, 59.1%). There was little difference in the number of whole blood donors in different age groups, while the age of plasmapheresis donors was concentrated in 40~59 years old (167/198, 84.3%). In terms of occupation, civil servants (including public institutions) accounted the highest proportion in whole blood donors (41/196, 20.9%), and farmers accounted the highest proportion (152/198, 76.8%) in plasmapheresis donors. The number of whole blood donors increased with the education level, and donors with college/university and above degree accounted the largest proportion (80/196, 40.8%). Plasmapheresis donors with junior middle school education and college/university and above accounted the largest and smallest proportion (49.5% vs 4.5%). The annual family income of whole blood donors ranged from 30 000 to 80 000 yuan accounted the largest proportion (109/196, 55.6%), and the annual family income of plasmapheresis donors less than 30 000 yuan accounted the largest proportion (132/198, 66.7%). 【Conclusion】 There were significant statistical differences in gender, age, education level, occupation and annual family income between whole blood and plasmapheresis donors. Therefore, targeted recruitment strategies should be formulated.

Objective:To explore the clinical outcome of early endoscopic realignment with flexible cystoscope for pelvic fracture urethral injury.Methods:We retrospectively collected and analyzed the clinical data of patients with pelvic fracture urethral injuries in ER of Beijing Jishuitan Hospital from March 2018 to June 2022.Seventy-six male patients with PFUI were reviewed and 60 patients were included due to the integrity of data collected. The patients were divided into early endoscopic realignment (EER) group and suprapubic cystostomy (SC) group according to the acute management. There were 33 patients and 27 patients in EER group and SC group, respectively. The age of the patients were (42.2±13.8)years and (44.1±15.0) years in EER group and SC group, respectively. The causes of the injuries were car accident, falling and crush, the percentage of the patients were 60.6%(20 cases), 33.3%(11 cases), 6.1%(2 cases) and 55.6%(15 cases), 44.4%(12 cases), 0 in EER group and SC group, respectively. The difference between two groups was statistically insignificant. The procedure of EER began with a cystostomy guided by B ultrasound, then an antegrade cystoscopy was performed through the cystostomy while negociating the bladder neck to the proximal side of injured urethra. A ureteral stent was inserted into the broken urethra and retrieved by a forceps through retrograde urethroscopy with another flexible cystoscope. We inserted a guidewire into the ureteral stent before removing it and placed a 16F urethral catheter along the guidewire. We analyzed the difference between two groups including the incidence, the length and the management of urethral stricture and the complexity of urethroplasty if needed. The simple urethroplasty was defined as performing anastomosis after dissection of the bulbar urethral and removing the scar tissue, while the procedure was defined as complex urethroplasty if ancillary procedures, such as separating the corporal bodies and partial pubectomy, was needed.Results:The EER group and SC group had 33 patients and 27 patients, respectively. The mean operation time of EER was (24.5±7.0)minutes and there was no intra-operative complications. Postoperatively, 4 cases of bleeding and 2 cases of UTI were found, which were successfully treated by conservative managements. Twenty-eight out of 33 patients(84.8%) in EER group developed urethral stricture and the mean length of it was (3.10±1.20)cm. However, all patients in SC group developed urethral stricture (100.0%) with the mean stricture length of (3.83±1.18)cm. The difference between two groups in term of the length of stricture was statistically significant ( P=0.026). 24 patients(85.7%) in EER group were treated by urethroplsty, 2 patients(7.1%) with endoscopic urethrotomy and 2 patients (7.1%) with dilation. All were treated with urethroplasty but 2 patients with endoscopic in SC group. In EER group, 8 strictures (33.3%)finished with simple urethroplasty and 16 strictures (66.7%) with complex urethroplasty.While in SC group, 6 strictures(24.0%) completed with simple urethroplasty and 19 strictures (76.0%)with complex urethroplasty. The complexity of urethroplasty performed in EER group was not statistically significant when compared with it in SC group( P=0.538). Conclusions:The procedure of EER with flexible cystoscope is reliable and safe. Most patients with formed urethral stricture after PFUI would be treated with urethroplasty. EER can reduce the urethral stricture formation and may decrease the need of the ancillary procedures during the urethroplasties if needed.

Objective:This study sought to investigate the feasibility, anatomical indications and operating points of transcatheter aortic valve replacement (TAVR) procedure in the treatment of pure aortic regurgitation (AR).Methods:The medical records of 4 elderly patients with pure AR who were treated in the cardiology department, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology from March 2020 to March 2021 were retrospectively analyzed. All patients were implanted with self-expandable valve stents via peripheral artery approach for TAVR treatment. The feasibility, anatomical indications and key points of TAVR were analyzed.Results:The 4 patients with pure AR who were carefully screened had an average age of 66 years, and all achieved TAVR treatment success without serious perioperative complications and death. Postoperative examination and follow-up data showed that cardiac functions and cardiac remodeling indexes were significantly improved.Conclusions:This exploratory study shows that TAVR is technically feasible and effective treatment option for selected elderly patients with native pure AR, which is worthy of further study.

【Objective】 To systematically evaluate the incidence of donation related vasovagal reactions (DRVR) in China by Meta-analysis method and discuss the risk factors of DRVR, so as to provide scientific basis for the prevention and control of DRVR. 【Methods】 Cochrane Library, PubMed, WanFang Data CNKI and other electronic databases were retrieved to collect research literature concerning the incidence and risk factors of DRVR among whole blood donors in mainland China, with the publishing duration setting from 1998 to 2020. Two reviewers independently screened the literature, extracted the data, and evaluated the methodological quality of the included studies according to the inclusion and exclusion criteria. Then Stata was used for Meta-analysis. 【Results】 A total of 63 studies involving 6 043 945 donors were included. The prevalence of DRVR was 1.0% (95% confidence interval [CI], 0.9%~1.1%, I²=99.7%, P<0.01). The prevalence of DRVR in females (1.4%, 95% CI: 1.0-1.8%, I²=99.6%, P<0.01) was higher than that in males (1.1%, 95 % CI: 0.8-1.4%, I²=99.6%, P<0.01). The incidence of DRVR was 1.3% (95%CI: 0.8-1.8, I²=97.9%, P<0.01), 0.8% (95%CI: 0.5-1.0, I²=95.0%, P<0.01), 0.4% (95%CI: 0.3-0.5, I²=88.5%, P<0.01) and 0.3% (95%CI: 0.1-0.6, I²=96.1%, P<0.01) in the age groups of 18-25, 26-35, 36-45 and 46-55, respectively, and the incidence of DRVR decreased with age(P<0.01). From 1998 to 2020, the incidence of DRVR decreased year by year (P<0.01). The prevalence in first-time donors (1.5%, 95% CI: 1.3-1.8, I²=98.6%, P<0.01) was higher than that of regular donors (0.6%, 95% CI: 0.5-0.7%, I²=97.2%, P<0.01). Anxiety was the major risk factor for DRVR. 【Conclusion】 Our results indicate that blood centers should strengthen the monitoring of DRVR. More attention should be paid to young women, more comfort given to first-time blood donors, and a more perfect system developed to reduce the occurrence of DRVR.

【Objective】 The loss of iron stores is well documented in whole blood donors, and a large number of studies have confirmed that blood donors are at risk of iron deficiency. With the development of apheresis donation, more and more attention has been paid to the health of apheresis donors. However, little is known about the iron status of apheresis donors. In recent 10 years, iron status of apheresis donors has been studied at home and abroad, and iron deficiency was found common among them. There is no systematic study concerning apheresis donors iron deficiency at present. This article summarizes the literature, concerning the principles and preventive measures about iron deficiency in apheresis donors, and aims at improving the recruitment strategy and providing high-quality service for donors.

Objective To analyze the clinical outcome of definitive perineal urethrostomy for the treatment of complex adult anterior urethral strictures.Methods From June 2012 to February 2018,28 patients who underwent the definitive perineal urethrostomy for a complex anterior urethral stricture were retrospectively reviewed.The mean age of the patients was 62.3 (range 34 to 77) years and stricture etiology was lichen sclerosus in 46.4％ (13/28) of the cases,iatrogenic stricture after transurethral resection of the prostate in 35.7％ (10/28),failed hypospadias repair in 10.7％ (3/28),infection 3.6％ (1/28)and idiopathic etiology 3.6％ (1/28).The mean stricture length was 9.6 (range 4.5 to 16.0) cm and the stricture length ＜5 cm in 7.1％ (2/28) of the cases,5-10 cm in 35.7％ (10/28) and ＞ 10 cm in 57.1％ (16/28).0f28 patients 21 (75％) underwent prior urethral dilation,4 (14.3％) underwent direct vision internal urethrotomy (DVIU) and 17 (60.7％) underwent urethroplasty.Among the medical history of interest,hypertension was observed in 17 patients (60.7％),chronic ischemic heart disease in 11 patients (39.3％),diabetes mellitus in 9 patients (32.1％) and chronic obstructive pulmonary disease (COPD) in 9 patients (32.1％).All patients completed the perineal urethrostomy with inverted U-shaped perineal skin flap.The patient was placed in a normal lithotomy position and an inverted U-shaped perineal incision was made.We can get an inverted U-shaped perineal skin flap after dissecting along the bulbospongiosus muscle.The bulbar urethra was opened along the ventral surface and the margins of the spongiosum tissue were closed with perineal skin flap.We analyzed the clinical characteristics of the patients,the outcome of the technique and investigated the satisfaction rates of the patients by outpatient follow-up or telephone interview.Surgical success was defined as functional voiding without the need for further procedures.Results The perioperative complications included 3 cases of urinary tract infection,1 case of bleeding and 1 case of wound dehiscence.Mean follow-up length was 27.2 (range 6.0 to 64.0)months.Of 28 cases 26 (92.9％) were successful and the mean maximum urinary flow rate was 26.5 (range 17.0 to 40.0) ml/s.Postoperatively,2 cases of urethrostomy strictures were found in 2 months and 4 months,respectively.They required periodic outpatient dilation and the younger one was in the waiting list for revision of the perineostomy and the older one refused the revision.Of 28 patients 24 (85.7％) were satisfied with the results obtained with surgery,15 were very satisfied,9 cases satisfied and 4 cases dissatisfied.Conclusions The successful rate of the definitive perineal urethrostomy for the complex adult anterior urethral strictures was high and patients were satisfied with the outcome of the surgery.The definitive perineal urthrostomy is a well-tolerated treatment option for patients with complex anterior urethral strictures,especially for those aged and with extensive comorbidities.

Objective To observe the effect of tirofiban,aspirin and Clopidogrel Hydrogen triple antiplatelet in patients with acute myocardial infarction undergoing primary percutaneous coronary intervention and the effect on the incidence of major adverse cardiac events.Methods a total of 60 patients with acute myocardial infarction(AMI)in our hospital from January 2015 to-2016 in December were enrolled in this study.All patients were treated with percutaneous coronary intervention(PCI).The patients were randomly divided into control group(n=30)and observation group(n=30).The control group using clopidogrel hydrogen treatment,observation group were treated with tirofiban,aspirin and Clopidogrel Hydrogen triple antiplatelet therapy,the incidence and clinical effects of the two groups of major adverse cardiac events.Results the two groups before treatment,the platelet aggregation rate and platelet count had no statistically significant difference; no significant observation group after treatment compared 30d platelet count difference; observation group 30d after treatment,the platelet aggregation rate was lower than the control group(P<0.05); the observation group after the treatment of 30d MA-ADP on platelet drug reaction the inhibition rate is lower than the control group(P<0.05); the observation group after treatment of AA drugs 30d platelet inhibition rate,the inhibition rate of ADP,higher than that of the control group(P<0.05); the observation group after treatment,the incidence of major adverse cardiac events was 13.33％,33.33％in the control group,two groups of major adverse cardiac events was statistically significant the difference(P<0.05).Conclusion The patients with acute myocardial infarction undergoing primary percutaneous coronary intervention after treatment with tirofiban,aspirin and chlorine Pigre triple antiplatelet ideal treatment effect,can reduce the incidence of major adverse cardiac events,it is worthy of popularization and application.

Objective To explore central lymph node metastasis (CLNM) of cN0 papillary thyroid carcinoma(PTC).Methods We evaluate the clinical data of 245 patients with cN0 unilateral TPC undergoing total thyroidectomy and bilateral central lymph node dissection.Results Central lymph node metastasis of cN0 TPC was 36.8％ (91/245),significantly related to gender(x2 =5.626,P =0.018),age (x2 =6.255,P =0.012),tumor size (x2 =20.063,P ＜ 0.001) and capsule invasion (x2 =15.024,P ＜ 0.001).The central lymph node metastasis was 51.7％ (60/116) in 116 patients with tumor size ＞ 1 cm,and the contralateral CLNM was 22.4％ (26/116) which was related to capsule invasion (x2 =9.737,P =0.002) and delphian LNM(x2 =10.982,P =0.001) There were 6 cases (2.4％) suffering from temporary unilateral recurrent laryngeal nerve injury.96 cases (39.2％) suffered from temporary hypoparathyroidism and 3 cases (1.2％) from permanent hypoparathyroidism.The median follow-up time was 40 months.6 cases were found regional lymph node recurrence on the ipsilateral side.Tumor size ＞ 1 cm was significantly related with recurrence (P =0.008),as CLNM with higher recurrence rate (P =0.001).Conclusions CLNM is common in cN0 PTC patients,and central lymph node metastases increase the risk of recurrence.Prophylactic bilateral central lymph node dissection is suggested for tumor size ＞ 1 cm cases.