Objective: To explore the setting of gray zone of Treponema pallidum (TP) testing by retrospective analysis of blood donors with single reagent reactive anti-TP results, so as to improve blood utilization and supply safety. Methods: Blood samples were collected from 112 blood donors previously deferred due to single reagent reactive TP antibody results between January 2020 and December 2023, and subjected to dual ELISA reagents and TPPA test. The gray zone panel analysis was performed on the two ELISA reagents currently used in our department. The detection rate at each concentration of the gray zone panle was counted, and the corresponding concentrations for C , C , and C and gray zone cut-off were calculated. Results: Among the 50 samples deferred by reagent 1, 19 were confirmed reactive and 31 non-reactive in supplementary testing. Among the 62 samples deferred by reagent 2, 12 were confirmed reactive and 50 non-reactive in supplementary testing. For reagent 1, the detection rate of was 56% for S/CO≥1 and 20% for 0.5≤S/CO<1, retrospectively. For reagent 2, the detection rate was 27% for S/CO≥1 and 12.5% for 0.5≤S/CO<1, retrospectively. The detection rate for S/CO≥1 was higher than those for 0.5≤S/CO<1 for both reagents. All the 112 samples were negative in TPPA test. The C concentration of reagent 1 was 1.51 mIU/mL, and the concentration range of C ±20% was 1.21-1.81 mIU/mL. The C concentration of reagent 2 was 1.45 mIU/mL, and the concentration range of C ±20% was 1.16-1.74 mIU/mL. The C and C concentration of both reagents were within the C ±20% range, suggesting that the gray zone cutoff for both Reagent 1 and Reagent 2 should be set at S/CO=0.8 (80% of the CO value). Conclusion: All anti-TP single reagent reactive samples with S/CO value within the gray zone was tested negative by TPPA. It is necessary to consider the rationality and necessity of establishing the gray zone, so as to ensure blood safety and improve the utilization rate of blood resources.

Logistics informatization is importantfor promoting the high-quality development of public hospitals.It is a driving force for innovating hospital logistics management and an important practice of"green hospitals"and"smart hospitals".The logistics information system can effectively integrate people,machines,materials,and events of hospitals to achieve data-driven scientific management and improve service and management efficiency.By analyzing the current status of logistics manage-ment in the Sun Yat-sen University Cancer Center,this article proposes a transformation path to and management ideas for hospi-tal refined logistics management based on the information system,expecting to provide an insight into future information construc-tion and hospital logistics management development.

As public hospitals continue to expand,buildings continue to age,sporadic renovation projects are increas-ing,and expenditures are increasing.In order to ensure the safe,stable and efficient operation of the hospital,the piecemeal re-pair project has become an important basic guarantee for the hospital.There are many kinds of sporadic repair projects,and the projects are trivial and scattered.The contradictions among the needs,cost control,management ability and service quality of sporadic repair projects are becoming increasingly prominent,which has become the difficulty and pain point of logistics service management.In the practice of hospital sporadic repair project management,the traditional project management mode is broken,the whole process of fine management system is established,the level of management personnel and the whole process of the pro-ject are effectively integrated,and the management ability and service quality of sporadic maintenance projects are comprehensive-ly improved.

Objective To explore the clinical value of human acellular dermal matrix (HADM) in giant complex abdominal wall reconstruction (GCAWR) after open abdomen.Methods The retrospective crosssectional study was conducted.The clinical data of 6 patients with severe trauma who were admitted to the Nanjing General Hospital of Nanjing Military Command of Nanjing University School of Medicine between January 2013 and January 2014 were collected.After open abdomen,fascia of the abdominal wall was fully freed using the component separation,and abdominal wall defects were reconstructed using HADM in the rectus abdominis anterior sheath and peritoneal layers bridge-type suture.Observation indicators:(1) intra-and post-operative situations:operation time,volume of intraoperative blood loss,removal time of postoperative drainage-tube,postoperative complications,duration of hospital stay and hospital expenses;(2) follow-up situations:recurrence of abdominal wall hernia at postoperative year 2.Follow-up using outpatient examination and telephone interview was performed to detect the recurrence of abdominal wall hernia up to April 2016.Measurement data with normal distribution were represented as ~±s.Results (1) Intra-and post-operative situations:6 patients underwent successful surgery.Operation time,volume of intraoperative blood loss and removal time of postoperative drainage-tube were respectively (77±9)minutes,(225±57)mL and (8±3)days.Two patients with postoperative seroma were cured by conservative treatment.One patient with postoperative anastomotic leakage received continuously irrigation and drainage,and leakage was stopped using the biomedical fibrin glue.There was no abdominal bulge of the 6 patients in hospital.Duration of hospital stay and hospital expenses were respectively (10±3) days and (12±7) × 104 yuan.(2) Follow-up situations:6 patients were followed up for 14-28 months,with a median time of 23 months.Two patients had relaxation and bulge of HADM in peritoneal layer at postoperative 2 years,without bulge of HADM in the rectus abdominis anterior sheath layer.There were no occurrence of abdominal wall hernia,chronic pain,paraesthesia,swelling in the local area and other adverse reaction.Conclusion Using of HADM in the rectus abdominis anterior sheath and peritoneal layers bridge-type suture is safe and feasible for GCAWR,with good short-term outcomes.

Vitamin D ( VD) has been stated clearly in maintaining the balance of serumcalcium and phosphorus in human . Whereas, more and more evidences show VD has a considerable range of other physiological functions .VD has also been proposed to have vital functions controversially including adjusting immunity, antitumor, enhancing barrier in the intestine .The patients of short bowel syndrome are at particularly high risk of vitamin D deficiency .It has a significance in prevention and treatment of diseases to fur-ther clearly clarify the relationship and mechanisms of VD and the diseases .

Objective To investigate the clinical efficacy of allogeneic cross-linked dermal dressing (ACLD) for the treatment of enteroatmospheric fistula (EAF) in patients with open abdomen (OA).Methods The clinical data of 44 patients with experienced trauma who received OA at Nanjing General Hospital of Nanjing Military Command from January 2011 to January 2014 were retrospectively analyzed.All patients received temporary abdominal closure (TAC) by modified sandwich-vacuum package (MSVP).From January 2011 to December 2012,33 patients with OA received vaseline gauze as abdominal cover layer (VG group),and from January 2013 to January 2014,11 patients with OA received allogeneic cross-linked dermal dressing as abdominal cover layer (ACLD group).Patients were followed up via outpatient examination or telephone interview till October 2014.The incidence of EAF,time for skin-grafting,hematologic indexes in 2 weeks after surgery (white blood cell counts,percentage of neutrophil,the mean value of procalcitonin and C reactive protein),the duration of postoperative hospital stay,hospital expenses and survival rates in the 2 groups were analyzed using t-test,repeated measures analysis of variance and Fisher's exact test.Results The incidence of EAF in the VG group and ACLD group was 42.4％ (14/33) and 0,respectively,with a significant difference between the 2 groups (P ＜ 0.05).The duration of skin-grafting was (15 ±6) days in the VG group and (11 ±3)days in the ACLD group,with a significant difference between the 2 groups (t =2.10,P ＜ 0.05).The mean values of preoperative procalcitonin and postoperative procalcitonin at day 1,3,7,14 in the VG group were (1.20 ± 0.60)pg,/L and (2.50-± 0.90)pg,/L,(1.70 ± 0.30) pg/L,(1.90 ± 0.40) μg/L and (2.70 ± 0.60) μg/L,which were significantly higher than that of (0.90 ± 0.30) μg/L and (1.80 ± 0.60) μg/L,(1.30 ± 0.50) μg/L,(0.60 ± 0.20) μg/L and (0.30 ± 0.07) μg/L in the ACLD group (F =8.50,P ＜ 0.05).The white blood cell counts and percentage of neutrophil and the percentage of C reactive protein between the 2 groups were changed from (13.8 ±2.4) × 109/L,(12.9 ± 2.1) × 109/L,0.90±0.09,0.88 ±0.06,(81 ± 19)mg/L,(136 ±28)mg/L to (16.2 ±3.3) × 109/L,(7.9 ± 3.0) x 109/L,0.85 ±0.12,0.79 ±0.09,(131 ±30)mg/L,(59 ±22)mg/L at postoperative day 14,showing no significant difference between the 2 groups (F =3.10,0.50,1.20,P ＞ 0.05).Duration of hospital stay and hospital expenses in the VG group and ACLD group were (137 ±32)days,(638 831 ± 113 670) yuan and (82 ± 44)days,(474 839 ± 78 543)yuan,respectively,with a significant difference between the 2 groups (t =3.60,4.43,P ＜ 0.05).The time of follow-up and overall survival rate in the VG group and ACLD group were 29 to 38 months and 81.8％ (27/33),and 10 to 20 months and 90.9％ (10/11),respectively,with no significant difference (P ＞ 0.05).Conclusion Allogeneic cross-linked dermal dressing as abdominal cover layer can effectively decrease EAF in patients with open abdomen.

Objective To study the distribution of hepatitis B virus genotype and subgenotype in Handan and clarify the genotype-related difference in clinic.Methods PCR-RFLP was used to detect the HBV genotype and subgenotype in 108 HBV-infected patients from Handan Infectious Disease Hospital from January,2006 to April,2006.Analyze the correlation of HBV genotype and clinical characteristicly of patients.Results Among 108 HBV-infected patients,the proportion of genotype B and C is 6.5% and 93.5% respectively.All genotype B patients were subgenotype Ba.In genotype C group,88.1% was subgenotype C2;genotype distribution showed no significant difference between male and female.ALT and AST level were higher in genotype C group than those in genotype B group.Conclusion HBV genotype C is predominant in chronic hepatitis B patients in Handan city.HBV subgenotype C2 is the major subgenotype in Handan city.The positive rate of HBeAg and HBV DNA levels are higher in genotype C than those in genotype B group.Genotype C and genotype B have no difference in the severity of liver disease and HBV-DNA.associated with.Clinical feature of subgenotype C1 and subgenotype C2 is similar.