OBJECTIVE To establish and apply the hospital infection information system,and study the risk factors and occurrence pattern hospital infection,to control the incidence of hospital infection.METHODS The hospital infection management software was developed by the hospital with the Hope-Bridge Technology Company of Guangzhou.RESULTS This system can joint with the hospital information system(HIS) seamlessly,as a subsystem of HIS,and be utilized in the real-time monitoring for all inpatients.It has the function of inquiry,statistics and analysis,it can monitor correctly and comprehensively on infection case,hospital environmental hygiene,usage of antibiotics and intervening operations.CONCLUSIONS The hospital infection management software is convenient and easy to operate,which can enhance the efficiency and effect of the management of hospital infection.

Objective To realize the incidence of healthcare-associated infection(HAI)in patients after receiving extracorporeal membrane oxygenation(ECMO)procedure,and to evaluate the related factors for HAI.Methods Clinical data of patients receiving ECMO from January 2003 to December 2012 were collected and analyzed retro-spectively.Results Of 43 patients receiving ECMO,15 (34.88% )developed 24 times(55.81% )of HAI. The main HAI site was lower respiratory tract(n= 12,50.00% ),followed by blood stream(n= 6,25.00% ),skin and soft tis-sue(n= 5,20.83% ).A total of 28 isolates of pathogens were detected,gram-negative bacilli were 19(67.86% )iso-lates,gram-positive cocci 7(25.00% ),and fungi 2(7.14% );pathogens were mainly isolated from specimens of sputum(n= 12,42.86% ),blood (n= 9,32.14% )and wound secretion(n= 6,21 .43% ). The incidence of postopera-tive HAI in ECMO patients was related with patients’age,duration of ECMO,complication,mechanical ventila-tion,tracheal intubation or tracheotomy,and indwelling urinary catheter.Conclusion HAI in patients receiving EC-MO is high,hospital should take corresponding prevention and control measures targeting to the related risk factors of infection,so as to reduce the incidence of HAI after the ECMO.

Objective To study the value of ultrasound in operation for traumatic brain injury (TBI) in simulation field hospitals where computed tomography (CT) equipment is unavailable.Methods The wartime conditions were simulated, and the patients at age of 18-60 years were randomly selected.According to the principles of medical ethics, all patients received CT scanning.Two neurosur-geons from the field hospital who did not know the result of CT examination cooperated with another two neurosurgeons who got the results of the CT examination to determine whether operation should be ap-plied.Forty-five patients who needed emergency craniotomy were finally selected.The operations were performed by two neurosurgeons from the field hospital, with real-time ultrasound monitoring.The results of ultrasound were compared with that of CT scanning.Results A total of 64 lesions were found by ul-trasound , and 60 of which should be treated by operation.In the meantime, 82 lesions were found by CT scanning, 64 of which should be treated operatively.Epidural hematoma and subdural hematoma had high ultrasound detection rate, followed by intracerebral hematoma, subdural effusion and brain contusion.The overall detection rate of ultrasound was 87.1%.Conclusion Ultrasound plays an important role in correctly finding the focus so as to reduce blind operation and avoid omission of the focus in field hospi-tals, where CT equipment is usually unavailable.

Objective To study operative treatment of severe tibial pilon fracture.Methods Between March 2010 and September 2016,29 patients with severe pilon fracture received operative treatment and complete follow-up at Department of Orthopaedic Surgery,Maternal and Child Care Service Centre of Guangzhou Nansha District.They were 24 men and 5 women,aged from 23 to 62 years (average,40.3 years).According to AO/OTA classification,9 cases were type C1,12 type C2 and 8 type C3.There were 6 open and 23 closed fractures.Of them,27 were complicated with fibular fracture.Open reduction and intenal fixation was conducted in 22 cases and limited internal fixation combined with external fixation in 7.Results This cohort was followed up for an average of 15 months (from 12 to 25 mouths).All the fractures obtained union after an average of 16 weeks (from 8 to 28 weeks),but the union in 5 cases was delayed.According to American Orthopaedic Foot and Ankle Society (AOFAS) criteria for ankle and hind foot,16 cases were rated as excellent,9 as good,3 as fair,one as poor,yielding an excellent to good rate of 86.2％.The main complications included superficial necrosis of wound skin in 3 cases,which were cured by skin flap repair after wound treatment,and superficial and deep infection both in 2 cases,which were cured by dressing change.Conclusions Severe tibial pilon fractures should be treated according to their different types and severities of soft tissue injury,using different operative methods and timing.

Objective:To investigate the effects of total minimally invasive surgery (TMA) and mixed minimally invasive/open surgery (HMOA) on perioperative conditions and long-term efficacy of patients with rectal cancer.Methods:The clinical data of 240 patients with rectal cancer treated with minimally invasive surgery from January 2014 to August 2018 in Hangzhou Third People′s Hospital were retrospectively analyzed. Among them, 110 patients were treated with TMA (TMA group) and 130 patients were treated with HMOA (HMOA group). The relevant indexes of patients before and after surgery were collected and analyzed.Results:The operation time in TMA group was significantly longer than that in HMOA group: (312.5 ± 20.3) min vs. (210.8 ± 15.2) min, the length of hospital stay was significantly shorter than that in HMOA group: (4.0 ± 0.5) d vs. (6.8 ± 1.0) d, and there were statistical differences ( P<0.01); there were no statistical differences in low anterior resection and surgical procedures, ileostomy, open surgery, postoperative complications, reoperation, morphine dosage at 3 d after surgery and readmission between 2 groups ( P>0.05). Multivariate Cox analysis result showed that BMI ≥ 30 kg/m 2 ( OR=4.11, 95% CI 1.68 to 9.72, P<0.01), TMA ( OR=0.13, 95% CI 0.06 to 0.42, P<0.01), delayed bowel obstruction ( OR=13.6, 95% CI 1.59 to 110.56, P<0.05) and reoperation ( OR=15.32, 95% CI 5.52 to 42.56, P<0.01) were independent risk factors of prolonged hospital stay in patients with rectal cancer. The patients were followed up for 15 to 42 (29.5 ± 0.2) months, and there were no statistical differences in 3-year overall survival (OS) rate and 3-year disease-free survival (DFS) rate between HMOA group and TMA group (92.5% vs. 92.8% and 79.6% vs. 85.5%, HR=1.20 and 0.75, 95% CI 0.35 to 3.14 and 0.28 to 1.34, P=0.98 and 0.25). Conclusions:Patients with rectal cancer treated with TMA have the advantages of shorter hospital stay and shorter short-term effects compared with those treated with HMOA. However, the long-term effects of the two minimally invasive procedures are similar.

Objective:To study the anti-tumor efficacy of endostar microbubble combined with focused ultrasound radiation in colon cancer liver metastases.Method:29 mice with colon cancer liver metastasis were randomly divided into four groups. Group 1(8 mice), as the control group. Group 2(7 mice) were treated only with ultrasonic radiation. Group 3 (7 mice) treated with the ultrasonic radiation combined with SonoVue microbubbles without carrying any medicine. Group 4(7 mice), treated with the ultrasonic radiation combined with microbubbles carrying endostar. The mice were sacrificed and the tumor specimens were weighted on the 12 days after ultrasound radiation. Immunohistochemistry was used to assess CD34 expression within the metastatic tumor.Results:The tumor weight in group 4 (0.79±0.49)g was significantly lower than that in group 1 (2.67±0.61)g, group 2 (2.60±0.60)g and group 3 (1.74±0.33)g ( F=20.629, P<0.01). The liver metastatic tumor weight in group 4(0.55±0.16) g was much lower than that in group 1 (1.47±0.22)g, group 2(1.42±0.28) g and group 3 (0.95±0.27)g ( F=23.758, P<0.01). There was no obvious difference among the four groups in the number of nodules of metastatic tumor in liver ( F=0.167, P=0.918). The level of CD34 in group 4 were (8 037±1 708) , significantly lower than that in any other group, ( F=15.779, P<0.01). Conclusion:Endostar microbubble combined with focused ultrasound radiation decreases tumor angiogenesis in liver metastasis, and inhibits the growth of both primary and metastatic tumor.

Objective:To investigate the application value of transanal intersphincteric resec-tion under direct vision in the Jackknife position in the anal preserving surgery for ultra-low rectal cancer.Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 15 patients with ultra-low rectal cancer who underwent transanal intersphincteric resection under direct vision in the Jackknife position, combined with laparoscopic total mesorectal excision in Huizhou Municipal Central Hospital from September 2021 to November 2022 were collected. There were 9 males and 6 females, aged (63±9)years. Measurement data with normal distribution were represented as Mean± SD, and measurement data with skewed distribution were represented as M(range). Count data were described as absolute numbers. Results:(1) Surgical and postoperative outcomes. All the 15 patients underwent operations successfully, without conversion to open abdo-minal operation. There were 5 cases of partial ISR and 10 cases of subtotal ISR. The operation time and volume of intraoperative blood loss of 15 patients were (260±30)minutes and 20(range, 10-30)mL, respectively. The distance from anastomosis to anal margin was (1.6±0.8)cm. The duration of post-operative hospital stay was 10(range, 8-13)days, and all 15 patients underwent colonic and anasto-mosis with staplers and protective ileostomy at the terminal ileum. Three patients had postoperative complications within 30 days after surgery, of whom 1 case with grade A anastomotic leakage was cured after conservative treatment and 2 cases with anastomotic membranous stenosis were cured by anal enlargement. (2) Postoperative pathological examination. The number of lymph nodes dissected of 15 patients was 18 ±6, and the distance between the tumor and distal resection margin was 1.3(range, 1.0-2.0)cm. The surgical specimens of all 15 patients showed complete mesorectum and negative for proximal, distal and circumferential margins. Results of postoperative pathological examination showed that there was 1 case in stage pT1N0M0, 9 cases in stage pT2N0M0, 1 case in stage pT2N1M0, 1 case in stage ypT0N0M0, 2 cases in stage ypT2N0M0, 1 case in ypT3N1M0 stage. The histological subtype showed 11 cases of moderately differentiated adenocarcinoma and 4 cases of well-differentiated adenocarcinoma. (3) Follow-up. All 15 patients were followed up for 15(range, 12-24)months. No local recurrence and distant metastasis of the tumor was found, and no tumor-related death occurred. All 15 patients underwent stoma closure. The postoperative anal function assessment of 15 patients showed no disorder in 5 cases, mild disorder in 8 cases and severe disorder in 2 cases.Conclusion:Transanal intersphincteric resection under direct vision in the Jackknife position in the anal preserving surgery for ultra-low rectal cancer is safe and feasible.