Osteosarcoma is the most common primary bone tumor in children and adolescents, with a high degree of malignancy and a poor prognosis. The prevailing treatment paradigm continues to be based on a multimodality therapy of neoadjuvant chemotherapy-surgery-adjuvant chemotherapy, but the survival benefit provided by chemotherapy has remained relatively constant over the past 40 years. Ferroptosis, as a newly discovered form of cell death, has seen rapid research progress over the past decade, and targets for tumor treatment are constantly discovered. Thus, this article commenced with the proposal, developmental nodes, and underlying mechanisms of ferroptosis, then summarized the research results on ferroptosis in osteosarcoma, anticipated its developmental prospects, and highlighted the most urgent things in this field.

Objective To investigate the efficacy of tuberculosis bacillus DNA （TB-DNA） assay combined with pathologic diagnosis and real-time fluorescence quantitative nucleic acid amplification of Mycobacterium tuberculosis/rifampicin resistance（Xpert MTB/RIF） for the detection of Mycobacterium tuberculosis in pathological tissue samples. Methods A total of 71 patients with suspected tuberculosis were selected from September 2020 to December 2021. The pathological tissue samples （lung, lymph nodes, pleura, and other tissues） of the patients were respectively detected by TB-DNA and Xpert MTB/RIF, and the value of the two methods in clinical diagnosis was compared. Results The positive rate of TB-DNA （combined with pathology） was 40.8%, and that of Xpert MTB/RIF was 23.9%, with a statistically significant difference （P<0.05）. The consistency of the two methods was 77.46% （κ=0.502, P<0.05）. Based on the final clinical diagnosis （made after comprehensive consideration of clinical manifestations, etiology, histopathology, imaging, response to empirical anti-tuberculosis therapy, etc.）, the sensitivities of TB-DNA and Xpert MTB/RIF were 49.0% （24/49） and 30.6% （15/49）, and the specificities were 77.3% （17/22） and 90.9% （20/22）, respectively; there was no significant difference in sensitivity and specificity between TB-DNA and Xpert MTB/RIF （P>0.05）. Conclusion Both methods have some value in the detection of Mycobacterium tuberculosis in tissue samples, and TB-DNA combined with pathologic diagnosis may have a higher positive rate and diagnostic value.

Objective To investigate the diagnostic value of second-look ultrasound （SLU） for additional breast lesions of Breast Imaging Reporting and Data System （BI-RADS） category 4 or 5 detected by MRI. Methods A total of 89 suspicious lesions of BI-RADS category 4 or 5 detected additionally by magnetic resonance imaging （MRI） were retrospectively analyzed by SLU for ultrasound imaging features and BI-RADS category. Results Of the 89 additional lesions detected by MRI, 79 lesions were detected by SLU, and the detection rate was 88.8%, including 22 （27.8%） malignant lesions. There were statistically significant differences between benign and malignant groups in the boundary and blood flow distribution of mass （P<0.05）. The area under the receiver operating characteristic （ROC） curve of SLU re-evaluation was 0.800, indicating a high accuracy in diagnosing breast cancer. Conclusion SLU can effectively detect additional BI-RADS category 4 or 5 lesions by MRI and has a high diagnostic value.

Objective To summarize the clinical diagnosis and treatment and pathological features of a case with recurrent subacromial rice body bursitis, combined with literature review, and to raise understanding of the disease. Methods A middle-aged female was admitted, who had received arthroscopic surgery on the right shoulder for "synovial chondroma of the right shoulder joint" in another hospital 1 year ago, and suffered from recurrence of swelling and pain in the right shoulder joint for more than 1 month. After physical examination, MRI, and rheumatoid factor assays, the preliminary diagnosis was recurrent synovial chondromatosis of the right shoulder joint. Subsequently,arthroscopic synovectomy and loose body removal were performed. Results The patient's postoperative swelling and pain disappeared, and the range of motion of the right shoulder joint is recovered. Postoperative pathological reports indicated chronic bursitis and fibrous structured loose bodies, leading to the final diagnosis of recurrent subacromial rice body bursitis. Conclusion The pathogenesis of subacromial rice body bursitis remains unclear, and the diagnosis is predominantly reliant on MRI, arthroscopic assessment, and histopathological examination. Arthroscopic surgery is an effective therapeutic approach, with comprehensive debridement and subsequent follow-up essential to prevent recurrence.

Objective To evaluate the effects of enhanced enteral nutrition combined with glutamine （Gln） on therapeutic outcomes in patients with severe acute pancreatitis （SAP） through a meta-analysis. Methods 　Relevant studies on enteral nutrition combined with Gln in SAP patients were retrieved from databases including China National Knowledge Infrastructure （CNKI）， Wanfang Data， VIP， National Science and Technology Digital Library， PubMed， Cochrane Library， Embase， and Google Scholar， with a search timeframe spanning from the inception of each database to October 8， 2021. Two independent reviewers screened the literature based on predefined inclusion and exclusion criteria， focusing on randomized controlled trials （RCTs） in which the experimental group received enhanced enteral nutrition combined with Gln， and the control group received standard enteral nutrition alone. The quality of included studies was assessed using the Cochrane Handbook for Systematic Reviews， and statistical analysis was performed using RevMan 5.4 software. Results 　Nine studies involving 601 patients （298 in the experimental group and 303 in the control group） were included. Meta-analysis results demonstrated that， compared to the control group， the experimental group exhibited significantly lower post-treatment levels of hypersensitive C-reactive protein （hs-CRP） （MD=-1.37， 95%CI： -1.89， -0.86； P<0.05） and interleukin-6 （IL-6） （MD=-5.00， 95%CI： -6.85， -3.14； P<0.05）， as well as significantly higher levels of serum albumin （MD=3.46， 95%CI： 2.26， 4.65； P<0.05） and serum prealbumin （MD=42.15， 95%CI： 21.46， 62.84； P<0.05）. Additionally， the total hospital stay was significantly shorter in the experimental group （MD=-8.86， 95%CI： -17.06， -0.66； P<0.05）. Conclusion Enhanced enteral nutrition combined with Gln significantly improves inflammatory and nutritional indicators in SAP patients and reduces the total hospital stay. Therefore， enhanced enteral nutrition combined with Gln is recommended for SAP patients to consolidate therapeutic efficacy.

Objective To investigate the effect of ultrasound-guided bilateral transverse fascia plane （TFP） block on hemodynamics and stress response in patients undergoing inguinal hernia repair. Methods A total of 100 patients who underwent laparoscopic inguinal hernia repair in Gaozhou People's Hospital of Guangdong Province from December 2021 to November 2023 were selected as study subjects. They were divided into a study group and a control group by random number table method, with 50 cases in each group. The control group received general anesthesia, and the study group received combined ultrasound-guided bilateral TFP block. The two groups of patients were compared in terms of anesthesia drug dosage, postoperative hemodynamics, and the degree of pain. Results The dosages of propofol and remifentanilin in the study group were lower than those in the control group （P<0.05）. At the end of the operation, the heart rate （HR）, mean arterial pressure （MAP）, systolic blood pressure （SBP）, and diastolic blood pressure （DBP） between the two groups were not different （P>0.05）. At 2 h after operation, the MAP, HR, SBP, and DBP in the study group were lower than those in the control group （P<0.05）. There were statistically significant differences in pain scores between the two groups at different time points （2, 6, 12, and 24 h after surgery） （all P<0.001）. At postoperative 2, 6, 12, and 24 h after surgery, the pain scores of the study group were lower than those of the control group （P<0.05）. Conclusion Ultrasound-guided bilateral TFP block can effectively reduce the dose of intraoperative anesthetic drugs, relieve postoperative pain, and maintain hemodynamic stability in patients undergoing inguinal hernia repair.

Objective To investigate the postoperative analgesic effect of ropivacaine intercostal nerve block after thoracoscopic lobectomy. Methods A total of 95 patients who underwent thoracoscopic lobectomy under general anesthesia from January 2023 to January 2024 were selected. According to random number table method, 47 cases in the experimental group were treated with ropivacaine intercostal nerve block, and 48 cases in the control group were treated with erector spinae plane block. The two groups were compared in terms of intraoperative vital signs [heart rate （HR） and mean arterial pressure （MAP）] at selected time points, pain at rest and coughing within 48 h after surgery [by numerical rating scale （NRS）], and postoperative recovery. Results Before the block, there was no significant difference in HR and MAP between the two groups （P>0.05）. After induction of intubation, at skin incision, and extubation, the MAP and HR in the experimental group were lower than those in the control group （P<0.05）. The NRS scores at rest and coughing at 1, 3, 6, and 12 h after surgery in the experimental group were lower than those in the control group （P<0.05）. The time of first oral feeding, time of flatus, time of getting out of bed, and days of hospitalization after surgery in the experimental group were significantly shorter than those in the control group （P<0.05）. Conclusion Ropivacaine intercostal nerve block could yield better anagesic effect for patients undergoing thoracoscopic lobectomy than erector spinae plane block, and can facilitate postoperative recovery.

Objective To investigate the therapeutic effect of wrist ankle acupuncture on catheter-related bladder discomfort （CRBD） during anesthesia recovery period. Methods A study was conducted on 88 patients with CRBD after surgery under general anesthesia who were admitted from January 2024 to March 2024. They were randomly divided into three groups： A, B, and C by random number table method. Respectively, 30 cases in Group A received wrist ankle acupuncture treatment, 30 cases in Group B received sufentanil treatment, and 28 cases in Group C received wrist ankle acupuncture combined with sufentanil treatment. The severity rating of CRBD and visual analogue scale （VAS） scores were compared among the three groups at different time points, and the incidence rates of adverse reactions were calculated. Results At the time of entering the anesthesia recovery room （T0）, there was no significant difference in CRBD rating among the three groups （P>0.05）. At 1 h （T1） and 6 h （T2） after treatment, the CRBD ratings of the three groups decreased compared to T0; among them, Group A and Group C showed a more significant decrease than Group B （P<0.05）. However, the CRBD ratings of Group A and Group C were similar, with no significant difference （P>0.05）. There was no significant difference in CRBD ratings among the three groups at T1 and T2 （P>0.05）. At T0 and T1, there was no significant difference in VAS scores among the three groups （P>0.05）. At T2, the VAS score of Group C was lower than those of Group A and Group B （P<0.05）, while the VAS score of Group B was lower than that of Group A （P<0.05）. The VAS scores were different of the three groups between T1 and T2 （P<0.05）. The incidence rates of adverse reactions in Group C and Group B were similar, with no significant difference （P>0.05）. The incidence rates of adverse reactions in Group C and Group B were higher than that in Group A （P<0.05）. Conclusion Wrist ankle acupuncture treatment can effectively alleviate the clinical symptoms of CRBD patients, with a long duration of action and few adverse reactions.

Objective To analyze the clinical effects of removal of hematoma under neuroendoscope on hypertensive cerebral hemorrhage and the potential factors affecting prognosis. Methods A total of 80 patients with hypertensive cerebral hemorrhage admitted from July 2020 to July 2023 were selected as study subjects. According to different surgical methods, they were divided into an endoscopic group （hematoma removal under neuroendoscopy） and a small bone window group （hematoma removal by small bone window craniotomy under microscope）, with 40 cases in each group. Operation time, intraoperative blood loss volume, hematoma clearance rate, and postoperative complication incidence were compared between the groups. Preoperative information and postoperative prognosis [Glasgow outcome scale （GOS） score], the degree of neurological impairment [neurological functional deficit score （NFDS）], and the ability of daily living [activities of daily living （ADL） score] were compared between the two groups. Logistic regression analysis was performed of factors affecting the prognosis of patients in the endoscopic group. Results The endoscopic group showed significantly lower operation time and intraoperative blood loss volume than the small bone window group （P<0.05）, significantly higher clearance rate of hematoma （P<0.05）, and significantly lower incidence of postoperative complications （P<0.05）. Before surgery, there was no significant difference in GOS, NFDS, and ADL scores between the two groups （P>0.05）. After surgery, the three indicators of the two groups were significantly changed, and the endoscopic group had significantly better results than the small bone window group （P<0.05）. The logistic analysis showed that hypertension history, blood loss volume, ventricle rupture or not, and GOS score before surgery were all risk factors affecting the prognosis of patients in the endoscopic group （P<0.05）. Conclusion The treatment of hypertensive intracerebral hemorrhage by removal of hematoma under neuroendoscope can significantly increase the removal rate of hematoma, shorten operation time, reduce the amount of intraoperative blood loss, reduce the occurrence of postoperative complications, improve prognosis and neurological function, and elevate the activities of daily living, so it can be used in clinical practice. Hypertension history, amount of blood loss, ventricle rupture or not, and GOS score before operation may be the risk factors affecting the prognosis of patients with intracerebral hematoma removal under neuroendoscopy.

Objective To analyze the impact of percutaneous endovascular stent placement in the treatment of lower limb arteriosclerosis obliterans （ASO） and its effect on ankle brachial index and adverse events. Methods A total of 68 patients with lower limb ASO from January 2021 to December 2023 were included as study subjects. All the patients were randomly divided into an observation group （percutaneous endovascular stenting, n=34） and a control group （percutaneous angioplasty, n=34） by random number table method. The differences in ankle brachial index of dorsalis pedis artery, ankle brachial index of posterior tibial artery, blood flow index of dorsalis pedis artery, vascular diameter, and incidence of treatment-related adverse events were compared between the two groups. Results （1） The ankle brachial index of dorsalis pedis artery and the ankle brachial index of posterior tibial artery in the two groups after treatment were higher than those before treatment, and the observation group presented higher index values than the control group （P<0.05）. （2） The peak blood flow velocity, blood flow, and diameter of the dorsalis pedis artery after treatment in both groups were higher than those before treatment （P<0.05）, but no difference was found between the two groups （P>0.05）. （3） There was no significant difference in the incidence of treatment-related adverse events between the two groups （P>0.05）. Conclusion Percutaneous endovascular stent placement can better improve lower extremity arterial ischaemia than percutaneous angioplasty in patients with lower limb ASO, which is beneficial for accelerating patient recovery, and the incidence of postoperative adverse events is low, ensuring treatment safety.

Objective To investigate the clinical effect of membrane anatomy guided precise surgical concept in laparoscopic radical gastrectomy for gastric cancer. Methods A total of 98 patients with advanced gastric cancer admitted to Guigang People's Hospital in Guangxi Zhuang Autonomous Region from January 2022 to January 2024 were selected as study subjects. They were randomly divided into a control group and an observation group, with 49 patients in each group. The control group received conventional laparoscopic radical gastrectomy treatment, while the observation group received laparoscopic radical gastrectomy treatment guided by membrane anatomy theory. The surgical time, intraoperative blood loss, number of lymph node dissection, first postoperative exhaust time, hospitalization time, postoperative pain score [by visual analogue scale （VAS）], and incidence of postoperative complications were compared between the two groups of patients. Results Compared with the control group, the surgery time of the observation group patients was longer, the intraoperative blood loss was lower, the number of lymph node dissections was higher, the first postoperative exhaust time and hospitalization time were shorter, the VAS score and incidence of complications were lower; the differences between the two groups were all statistically significant （P<0.05）. Conclusion The precise surgical concept guided by membrane anatomy has a remarkable effect on laparoscopic radical gastrectomy for gastric cancer, which can significantly reduce intraoperative bleeding, postoperative pain, and incidence of complications, and promote postoperative recovery of patients. It is worth applying and promoting.

Objective To investigate the efficacy and safety of natural ori-fice specimen extraction surgery （NOSES） for internal hemorrhoids with rectal mucosal prolapse. Methods A total of 100 patients with internal hemorrhoids and rectal mucosal prolapse admitted to our hospital from January 2022 to January 2024 were selected and divided into a control group and a study group by random number table method, with 50 patients in each group. The control group underwent traditional laparoscopic surgery, while the observation group underwent NOSES. Surgical related indicators [operation time, intraoperative blood loss, postoperative visual analogue scale （VAS） score, and postoperative hospital stay], preoperative and postoperative Wexner constipation scores, and postoperative complications （hematochezia, fever, and urinary retention） were compared between the two groups. Result There was no significant difference in intraoperative bleeding between the two groups （P>0.05）. The study group had significantly longer operation time, lower postoperative pain （VAS） scores, and shorter hospital stay than the control group （P<0.05）. Compared with before surgery, both groups showed a significant decrease in Wexner constipation scores 8 weeks after surgery （P<0.05）, while there was no significant difference between the two groups 8 weeks after surgery （P>0.05）. There was no significant difference in the incidence of postoperative complications between the two groups （P>0.05）, and there was no recurrence in either group during the 6-month follow-up after surgery. Conclusion NOSES for internal hemorrhoids with rectal mucosal prolapse has significant advantages in reducing postoperative pain and shortening hospital stay, with no recurrence rate, providing a safe and effective new treatment option for clinical practice.

Objective To investigate the effect of combination of breast conserving surgery and sentinel lymph node biopsy in the treatment of early breast cancer and compare it with the effect of modified radical mastectomy. Methods A total of 100 cases of early breast cancer admitted from September 2021 to September 2023 were included and divided into 50 cases of control group and 50 cases of observation group by random number table method. The control group underwent modified radical mastectomy, and the observation group underwent breast conserving surgery combined with sentinel lymph node biopsy. Outcome measures included perioperative indicators, incidence of complications, cosmetic satisfaction and quality of life at postoperative 12 months, and postoperative tumor markers [carbohydrate antigen 19-9 （CA19-9）, carcinoembryonic antigen （CEA）, and cytokeratin 19 fragment antigen 21-1 （CYFRA21-1）]. Results Compared with the control group, the intraoperative blood loss and drainage volume were lower, and the operation time, drainage tube removal time, and postoperative hospital stay were shorter in the observation group, and the differences were statistically significant （P<0.05）. The incidence of complications in the observation group was lower than that in the control group （P<0.05）. The observation group showed significantly higher satisfaction with cosmetic results and quality of life scores than the control group （P<0.05）. No differences were found in CA19-9, CEA, and CYFRA21-1 levels between the two groups of patients before treatment （P>0.05）; after treatment, the tumor marker levels in both groups decreased, and the observation group had lower levels than the control group （P<0.05）. Conclusion Breast conserving surgery combined with sentinel lymph node biopsy has a prominent effect in the treatment of early breast cancer patients. The combined surgery is not only close to modified radical mastectomy in terms of effect, but also reduces the risk of surgical complications, effectively maintains breast shape, conducive to improving the quality of life after surgery, and has a high cosmetic satisfaction, which is worthy of promotion and application.

Objective To compare the therapeutic effects of endoscopic and open surgical treatments for patients with thyroid microcarcinoma. Methods A total of 82 patients who underwent thyroid microcarcinoma surgery from January 2022 to June 2024 were selected and randomly divided into two groups by random number table method. The control group （41 cases） received open surgery treatment, while the observation group （41 cases） underwent thyroid surgery through the transthoracic approach using laparoscopic techniques. The surgical indicators （operative time, intraoperative blood loss, and number of central lymph nodes dissection）, treatment effects, and safety between the two groups were compared. Results The operative time and number of central lymph nodes dissection of the observation group were higher than those of the control group, while the intraoperative blood loss was less （P<0.05）. There was no statistically significant difference in immune function indicators （CD3⁺, CD4⁺, CD8⁺, CD4⁺/CD8⁺） between the two groups before treatment （P>0.05）. However, after treatment, the CD8⁺ was lower and the other immune function indicators were higher in the observation group than those in the control group （P<0.05）. The scores of Patient and Observer Scar Assessment Scale （POSAS） and Observer Scar Assessment Scale （OSAS） in the observation group were higher than those in the control group after treatment （P<0.05）. Additionally, the incidence of postoperative complications in the observation group was lower than that in the control group （P<0.05）. Conclusion Compared with open surgery, transthoracic endoscopic thyroid surgery for patients with thyroid microcarcinoma could improve surgical indicators and immune function, alleviate pain, optimize scar scores, and reduce the occurrence of complications. This approach merits further clinical promotion.

Objective To investigate the clinical efficacy of flexible ureteroscopic holmium laser lithotripsy （FURL） in the treatment of kidney stones, and to compare it with percutaneous nephrolithotripsy （PCNL）. Methods A total of 68 patients with kidney stones admitted from January 2022 to December 2023 were selected as study subjects, and were divided into FURL group and PCNL group according to the operation type, with 34 cases in each group. The efficacy of the two groups was compared. Results The total clinical effective rate of the FURL group was significantly higher than that of the PCNL group （P<0.05）. The operation time of the two groups was not different （P>0.05）. The amount of intraoperative blood loss and hospital stay in the FURL group were significantly lower than those in the PCNL group （P<0.05）. Before operation, the renal function indexes of the two groups were not different （P>0.05）. After 3 d of operation, the renal function indexes in both groups were significantly increased （P<0.05）, but the indexes in the FURL group were lower than those in the PCNL group （P<0.05）. The incidence of postoperative complications in the FURL group was significantly lower than that in the PCNL group （P<0.05）. Conclusion Compared with PCNL, FURL is more effective in treating kidney stones, effectively improves renal function, facilitates postoperative rehabilitation, and has fewer complications.

Objective To investigate the effect of the distribution of bone cement along the midline of the vertebral body on the treatment of osteoporotic vertebral compression fractures （OVCF） using percutaneous vertebroplasty. Methods This retrospective study collected the diagnosis and treatment data of 95 patients with thoracolumbar （T11-L2） OVCF admitted to Quanzhou First Hospital from March 2020 to July 2021. According to the distribution of bone cement along the midline of the vertebral body, the patients were divided into a unilateral distribution group of bone cement （n=40） and a bilateral distribution group of bone cement （n=55）. Visual analogue scores were used to evaluate pain intensity. The vertebral height and Cobb angles of patients before and after treatment were compared by imaging analysis. The Oswestry disability index （ODI） was used to assess the degree of disability in patients. Questionnaires were distributed to evaluate patients' satisfaction with treatment plans. Results Six months after surgery, the VAS scores of the bilateral distribution group of bone cement were lower than those of the unilateral distribution group of bone cement （P<0.05）. At 7 d and 6 months postoperatively, the vertebral height increased, the Cobb angle decreased, and the ODI decreased in the bilateral distribution group of bone cement compared to the unilateral distribution group of bone cement （P<0.05）. The very satisfied and total satisfaction rates of the bilateral distribution group of bone cement were higher than those of the unilateral distribution group of bone cement （P<0.05）. Conclusion The distribution of bone cement on both sides of the vertebral midline has a good effect on correcting vertebral height and Cobb angle, indicating its satisfactory clinical recovery.

Objective To evaluate the effects of scar plastic surgery versus dot matrix CO₂ laser on the cosmetic outcomes of burn patients. Methods A total of 50 patients with deep burns requiring plastic surgery, who were admitted between February 2021 and February 2024, were selected and randomly divided into a control group and an observation group using a random number table, with 25 cases in each group. The observation group received scar plastic surgery treatment, while the control group received dot matrix CO₂ laser therapy. The Vancouver Scar Scale （VSS） scores of both groups at different time points, scar hyperplasia, and adverse reactions during the treatment were recorded and compared between the two groups. Results By the end of the last follow-up （6 months after treatment）, all the 50 patients included in this study were followed up, and there were no cases of drop-out or loss to follow-up. The VSS scores of the two groups showed a downward trend over time, and there were significant differences in VSS scores at different time points after treatment （P<0.05）. Different treatment schemes and time had interactive effects on VSS scores （P<0.05）. The number of mild hyperplasia in the observation group was more than that in the control group, while the numbers of moderate and severe hyperplasia in the observation group were less than those in the control group （P<0.05）. The satisfaction rate in the observation group was higher than that in the control group （P<0.05）. The incidence rates of wound infection, redness, and pain in both groups of patients were low, and the rates were not different between the two groups （P>0.05）. Conclusion Scar plastic surgery is more effective in improving the cosmetic outcomes of burn patients and reducing the degree of scar hyperplasia than dot matrix CO₂ laser treatment.

Standardized residency training is a necessary career path for modern medical students. There are still various problems and deficiencies in the process of standardized residency training in China, which need to be addressed through continuous exploration. In the process of standardized training of interventional ultrasound, ultrasound residents need to master the basic theoretical knowledge of interventional ultrasound （e.g., diagnosis of lesions, intraoperative interventional ultrasound probes, puncture paths, and selection of puncture equipment）, interventional ultrasound diagnostic and treatment specifications （e.g., indications and contraindications to interventional ultrasound, preoperative preparations, and operation procedures）, and the rescue process for patients in critical condition. The authors outlined the implementation and promotion of the "one-to-one" teaching model in the standardized training of ultrasound residents in a selected hospital, and summarized the experience, key points, and concerns in the teaching process, aiming to provide a reference for steadily improving the teaching quality and results of standardized training for interventional ultrasound residents and cultivating excellent ultrasound diagnostic and therapeutic personnel.

Objective To implement a quality control circle activity addressing the issue of excessive time spent on instrument post-processing after surgery, with the aim of improving work efficiency, reducing unnecessary repetitive steps, and shortening instrument post-processing time. Methods A quality control circle team was established on the theme of shortening the post-processing time of surgical instruments. The team developed an activity plan, analyzed the underlying causes for the lengthy post-processing of instruments, formulated corresponding countermeasures, and put them into practice. Results Through the effective management of the quality control circle, the team members’ abilities were improved, and the post-processing time of surgical instruments between August and September 2024 were significantly reduced. Conclusion The quality control circle activity has shortened the post-processing time of surgical instruments, improved the work efficiency of the supply room, and enhanced various abilities of circle members, which provides logistical support for the hospital's plan to increase surgeries in the future.

The form and function of hospital clinical engineering has been limited to the scope of asset operation for a long time, lacking in basic theory and technical resources, which makes it difficult to form a discipline system. In this paper, the geometric balance principle was used to deduce the model and trend of after-sales service of medical equipment at different stages, as well as the corresponding positioning of clinical engineering; the dynamic balance principle was used to construct the organizational behavior model of clinical engineering to obtain the maximum energy, as well as the corresponding positioning of the maximum effect of clinical engineering, and to analyze the environment, state, and dynamic effect of hospital clinical engineering in the multiple maintenance relationship.The present paper provided a theoretical basis for the establishment of discipline of hospital clinical engineering from a variety of perspectives, and theoretically proved that professional learning ability and practical acquisition ability are the basic elements to improve the existing level, which can be used as the practical way and specification of hospital clinical engineering design technical line.

Objective To evaluate the effect of continuous nursing based on WeChat platform combined with teach-back method among patients with tracheotomy. Methods From September 2021 to March 2023, a total of 28 patients with tracheotomy and tube insertion discharged from the Emergency Intensive Care Unit at Tongji Hospital Affiliated to Tongji University were randomly divided into a control group and an observation group by random number table method, with 14 cases in each group. The control group received routine continuous nursing, health guidance, and telephone follow-up after discharge. The observation group were given continuous nursing based on WeChat platform and teach-back method. The differences in home nursing knowledge mastery rate, complication rate, and nursing service satisfaction rate between the two groups were compared. Results Before nursing, the home nursing knowledge scores were low in the two groups, and the difference was not statistically significant （P>0.05）; after nursing, the scores in both groups were increased, and the score of the observation group was higher than those of the control group （P<0.05）. The incidence of complications was lower and the nursing service satisfactory rate was higher in the observation group than those in the control group （P<0.05）. Conclusion The continuous nursing mode based on WeChat platform combined with teach-back method can effectively promote standardized home nursing for patients with tracheotomy, reduce complications, and improve nursing satisfaction.