OBJECTIVE To formulate the Expert Consensus on the Implementation and Management of Drug Selection for Centralized Volume-Based Procurement in Medical Institutions of Guangxi （hereinafter referred to as the “ Consensus ”）， and to provide decision-making support and practical guidance for the drug selection and management of centralized volume-based procurement （hereinafter referred to as “centralized procurement”） drugs in medical institutions at all levels in Guangxi. METHODS A systematic review was conducted on the materials from previous batches of centralized procurement implemented in Guangxi. A comprehensive search was carried out for drug-related works and books， along with a systematic collation of guidelines on drug selection， expert consensus on centralized procurement， and policy documents. Through three rounds of specialized seminars， combined with existing evidence-based data and the practical drug selection experiences of medical institutions at various levels， this Consensus was formulated after thorough discussion and successive rounds of revision. RESULTS & CONCLUSIONS The Consensus systematically outlines the three key stages in the implementation of centralized procurement in medical institutions： procurement volume reporting， confirmation of agreed procurement volume， and procurement and usage implementation. It proposes drug selection strategies for centralized procurement bas ed on multiple dimensions， including specifications， dosage forms， packaging materials， fill volume， and manufacturing enterprises. In response to practical challenges encountered in the selection process， corresponding countermeasures are proposed， such as establishing a regularized information reserve mechanism， strengthening information technology support， and implementing categorized selection approaches. The Consensus advocates for medical institutions to construct an integrated “policy， data， and quality” decision-making system to promote full-cycle management of centralized procurement. This Consensus will provide scientific and practical guidance for medical institutions at all levels in Guangxi in the drug selection of centralized procurement， facilitating the smooth implementation and sustainable development of centralized procurement policies at the institutional level.

OBJECTIVE To construct a closed-loop management model for externally dispensed intravenous prescriptions， and to provide reference for standardized management of externally dispensed intravenous prescriptions. METHODS Based on the Expert Consensus on Closed-loop Management of Externally Dispensed Intravenous Prescriptions in Guangxi Zhuang Autonomous Region previously formulated by our hospital， risk points during the entire process were systematically identified through multidisciplinary team brainstorming and a fishbone diagram. A series of strategies were subsequently formulated and implemented， including qualifying designated external dispensing pharmacies and the drug catalogs， operating and maintaining the hospital information system and the Pharmacy Intravenous Admixture Service （PIVAS） intelligent management platform， and strengthening differentiated training for staff in the whole workflow. A whole-process closed-loop management system was constructed with PIVAS as the co re hub and the daytime chemotherapy center as the safety terminal. RESULTS A total of 3 cooperating pharmacies and an initial drug list comprising 35 product specifications were selected. A closed‑loop management process encompassing hospital outpatient prescribing， patient drug purchase in designated pharmacies， PIVAS drug dispensing， and medication use in daytime chemotherapy center was successfully established. This system enabled the mandatory grouping and association of externally dispensed intravenous prescriptions with in-hospital diluents， full-process verification based on drug traceability codes， intelligent monitoring of infusion parameters， and whole-process data traceability. CONCLUSIONS The constructed model effectively resolves the coordination and safety oversight during the use of externally dispensed intravenous drugs from out-of-hospital circulation to in-hospital use， and has preliminarily enabled procedural standardization， whole-process information traceability， and proactive control of medication risks.

Objective To propose a novel method based on three-dimensional depthwise separable convolution network(3D DSN)for the separation of PET images with dual tracers of 18F-FDG and 18F-FAPI.Methods A total of 120 pairs of 18F-FDG and 18F-FAPI PET images of the same patient scanned separately at different time points were collected,and the dual-tracer PET image was generated through simulation.After the image registration of PET images of two tracers for ensuring spatial position matching,the registered PET images were forward-projected to generate sinogram data,and the sinogram data of two tracers were accumulated to obtain mixed sinogram data.Subsequently,the dual-tracer PET image was reconstructed using maximum likelihood expectation maximization and input into a 3D DSN based network for image separation,thereby obtaining PET images of two single tracers.Results Compared with 3D CNN method,the proposed method increased the structure similarity index measure(SSIM)of the separated 18F-FDG images to the real 18F-FDG images by 0.87%,increased the peak signal-to-noise ratio(PSNR)by 11.8%,and reduced the normalized root mean square error(NRMSE)by 52%.The SSIM of the separated 18F-FAPI images to the real 18F-FAPI images increased by 1.1%,PSNR increased by 17.0%,and NRMSE decreased by 51%.Conclusion The proposed method can be effectively applied to simultaneous PET imaging with dual PET tracers,reducing the number of scans and costs in time and money,and providing clinical doctors more accurate and abundant diagnostic information.

Hyperemesis gravidarum(HG)refers to persistent and severe nausea and vomiting during early pregnancy.Severe HG may lead to maternal dehydration,electrolyte imbalances,malnutrition,and even hypotension and arrhythmias,potentially affecting fetal growth and development.Due to the unique physiological state of pregnancy,treatment options for HG are limited.Metoclopramide,has become a commonly used drug in treating HG due to its prove efficacy and safety.Previous studies have primarily focused on the extrapyramidal side effects of metoclopramide,but research on its psychiatric adverse effects,such as mania and somnolence,remains limited,particularly in pregnant patients.This paper reports a case of psychiatric abnormalities in an HG patient following metoclopramide administration.By analyzing the patient's condition,medication use,and adverse reactions,this study explores the potential mechanisms underlying metoclopramide-induced psychiatric abnormalities and provides clinical recommendations for preventing and managing such psychiatric adverse effects during pregnancy.These findings offer valuable guidance for healthcare professionals regarding the appropriate use of this medication.

Hyperemesis gravidarum(HG)refers to persistent and severe nausea and vomiting during early pregnancy.Severe HG may lead to maternal dehydration,electrolyte imbalances,malnutrition,and even hypotension and arrhythmias,potentially affecting fetal growth and development.Due to the unique physiological state of pregnancy,treatment options for HG are limited.Metoclopramide,has become a commonly used drug in treating HG due to its prove efficacy and safety.Previous studies have primarily focused on the extrapyramidal side effects of metoclopramide,but research on its psychiatric adverse effects,such as mania and somnolence,remains limited,particularly in pregnant patients.This paper reports a case of psychiatric abnormalities in an HG patient following metoclopramide administration.By analyzing the patient's condition,medication use,and adverse reactions,this study explores the potential mechanisms underlying metoclopramide-induced psychiatric abnormalities and provides clinical recommendations for preventing and managing such psychiatric adverse effects during pregnancy.These findings offer valuable guidance for healthcare professionals regarding the appropriate use of this medication.

Objective To propose a novel method based on three-dimensional depthwise separable convolution network(3D DSN)for the separation of PET images with dual tracers of 18F-FDG and 18F-FAPI.Methods A total of 120 pairs of 18F-FDG and 18F-FAPI PET images of the same patient scanned separately at different time points were collected,and the dual-tracer PET image was generated through simulation.After the image registration of PET images of two tracers for ensuring spatial position matching,the registered PET images were forward-projected to generate sinogram data,and the sinogram data of two tracers were accumulated to obtain mixed sinogram data.Subsequently,the dual-tracer PET image was reconstructed using maximum likelihood expectation maximization and input into a 3D DSN based network for image separation,thereby obtaining PET images of two single tracers.Results Compared with 3D CNN method,the proposed method increased the structure similarity index measure(SSIM)of the separated 18F-FDG images to the real 18F-FDG images by 0.87%,increased the peak signal-to-noise ratio(PSNR)by 11.8%,and reduced the normalized root mean square error(NRMSE)by 52%.The SSIM of the separated 18F-FAPI images to the real 18F-FAPI images increased by 1.1%,PSNR increased by 17.0%,and NRMSE decreased by 51%.Conclusion The proposed method can be effectively applied to simultaneous PET imaging with dual PET tracers,reducing the number of scans and costs in time and money,and providing clinical doctors more accurate and abundant diagnostic information.

OBJECTIVE To evaluate the efficacy， safety and cost-effectiveness of generic drugs and original drugs of voriconazole. METHODS The information of patients who used voriconazole generic drugs selected in National Centralized Drug Procurement （generic drug group） or non-selected original drugs （original drug group） in the treatment of fungal infection was collected from the our hospital. The propensity score matching was carried out to eliminate bias. The comprehensive efficacy was evaluated according to clinical efficacy， image findings and microbiological test， and stratified analysis of different populations was conducted based on fungal species， underlying diseases， etc.， the efficacy of different stratifications was evaluated. Evaluation of safety was performed by using the incidence of adverse reactions. The total cost， defined daily doses （DDDs） and defined daily dose cost （DDDc） were used to evaluate the cost-effectiveness. RESULTS A total of 436 patients were included， and there were 190 patients in each group after matching. In terms of efficacy， the effective rates of voriconazole generic drugs and original drugs were 62.63% and 59.47% （P＝0.528）； in terms of safety， the incidence of adverse reactions caused by generic drugs and original drugs of voriconazole was 13.68% and 7.89%， respectively（P＝0.069）. In terms of cost-effectiveness， the average total cost of generic drugs was 4 636.26 yuan， and that of original drugs was 8 613.20 yuan （P＜0.001）. After the implementation of National Centralized Drug Procurement， replacement rate of generic drugs increased to 87.30%， and DDDc decreased by 59.08%. CONCLUSIONS The efficacy and safety of voriconazole generic drugs are similar to those of original drugs in the treatment of fungal infection， and it is more cost-effective in terms of treatment cost.

OBJECTIVE To assess the efficacy of bioabsorbable steroid-releasing sinus stents for improving surgical outcomes and subjective symptoms when placed in the bilateral frontal sinus opening(FSO)following full functional endoscopic sinus surgery in patients with chronic rhinosinusitis with nasal polyps(CRSwNP).METHODS CRSwNP patients who had under full functional endoscopic sinus surgery with complete data of nasal endoscopy and sinus computed tomography data were identified and included in the study.The patients were divided into a control group consisting of patients receiving only full functional endoscopic sinus surgery(n=92)and a stent group consisting of patients receiving full functional endoscopic sinus surgery combined with placement of steroid implants in both FSO(n=38).The visual analogue scale(VAS)subjective symptom scores and surgical outcomes were compared preoperatively,and on postoperative day(PD30 and PD90)between the two groups.RESULTS Compared to baseline,the overall symptom VAS scores of patients after operation decreased significantly in both groups(P<0.05),and the degree of improvement of overall symptoms in the stent group was significantly better than in the control group(P<0.05).On PD30,the proportion of patients requiring postoperative interventions for bilateral FSO was reduced by 42.3%in the stent group,and was significantly lower than in the control group(P<0.05).Compared to the control group,the proportion of patients needing postoperative intervention in both ethmoid sinus on the stent group decreased by 17.7%(P>0.05).The results at PD90 were consistent with those at PD30.CONCLUSION Full functional endoscopic sinus surgery in combination with bilateral frontal sinus stent implantation is better than full functional endoscopic sinus surgery alone.

Objective: To explore the clinical manifestations, histopathological characteristics, diagnosis, treatment, and prognosis of simultaneous unilateral primary tumors of different pathological types in the parotid gland. Methods: A case of simultaneous unilateral primary parotid gland tumors, i.e., adenolymphoma and basal cell adenoma, was reviewed and analyzed in combination with the literature. Results: The patient discovered a lump in the right parotid gland area one month prior to presentation, and a tumor was palpated in the shallow lobe of the right parotid gland before surgery. According to MR images, the initial diagnoses were tumors of the shallow and deep lobes of the right parotid gland. The tumors of the deep and shallow lobes were excised with part of the gland, and the facial nerves were dissected under general anesthesia. Postoperative pathology revealed an adenolymphoma in the shallow lobe of the right parotid gland and a basal cell adenoma with cystic transformation in the deep lobe. The surgical effect was good, with no complications, and there was no recurrence after 1 year of follow-up. A review of the relevant literature showed that multiple primary tumors of the parotid gland can manifest as the simultaneous presence of two or more types of tumors on both sides or on one side, and the disease is mainly treated with surgery. Conclusion Multiple unilateral primary parotid gland tumors are rare. Imaging examinations need to be combined with clinical evaluations to prevent missed diagnoses. Surgery is the first treatment option, and patients with benign tumors have a good prognosis.

Objective To systematically evaluate the efficacy and safety of hydroxychloroquine(HCQ)in obstetric antiphospholipid syndrome(OAPS).Methods PubMed,Embase,Cochrane Library,Web of Science,SinoMed,Wanfang Data,CNKI,and VIP databases were searched electronically to collect clinical research on HCQ treatment for OAPS from inception to January 31,2023.Two researchers independently screened the literature,extracted data,and assessed the risk of bias of the included studies,Meta-analysis and GRADE evaluation were performed using RevMan 5.4 software and GRADE Profile 3.6 softwares.Results Five cohort studies and three randomized controlled trias(RCTs)were included,with a total of 644 OAPS patients(732 pregnancies).The results of Meta-analysis showed that compared with conventional treatment,HCQ supplementation significantly increased the live birth rate of OAPS(RR=1.29,95％CI 1.10 to 1.51,P=0.001),the negative conversion rate of lupus anticoagulant(RR=1.29,95％CI 1.13 to 1.47,P＜0.001),the anticardiolipin antibody negative conversion rate(RR=1.27,95％CI 1.12 to 1.45,P＜0.001)and the anti-β2 glycoprotein I antibody negative conversion rate(RR=1.31,95％CI 1.12 to 1.52,P＜0.001),the rate of early abortion(＜10 weeks)was significantly reduced(RR=0.31,95％CI 0.10 to 0.93,P=0.04).However,there was no significant difference between the two groups in reducing the rate of premature birth,late abortion(＞10 weeks)and the incidence of preeclampsia(P＞0.05).In terms of safety analysis,two studies described HCQ adverse effects including skin reactions and dry eyes,symptoms are mild.Three RCTs were used to compare the incidence of adverse reactions between the two groups,the incidence of adverse reaction of HCQ group was lower than that of control group(RR=0.40,95％CI 0.25 to 0.66,P＜0.001),and no serious adverse reactions occurred in both groups.The sensitivity analysis results were robust and reliable.The results of GRADE evaluation showed that the quality of index evidence included in this study were low or very low,with weak recommendations.Conclusion HCQ can significantly improve the live birth rate of OAPS and the negative conversion rate of antiphospholipid antibody,and reduce the fetal abortion rate before 10 weeks with fewer adverse reactions,but there is insufficient evidence to reduce the incidence of premature birth,fetal abortion after 10 weeks and preeclampsia.Due to the limited number and quality of included studies,the above conclusions need to be confirmed by more high-quality studies.