Objective To investigate the clinical characteristics,treatment methods,and prognosis of a-cute leukemia patients with extramedullary infiltration.Methods The clinical characteristics and treatment methods of 47 acute leukemia patients with extramedullary infiltration admitted to the Affiliated Hospital of Guizhou Medical University from April 2014 to April 2023 were retrospectively analyzed.Subgroup analysis was performed according to whether there was extramedullary infiltration before transplantation,and whether there was isolated extramedullary recurrence after transplantation.Based on this analysis,the patients were di-vided into the pre-transplantation radiotherapy group and pre-transplantation non-radiotherapy group,the post-transplantation radiotherapy group and post-transplantation non-radiotherapy group.According to the treatment methods of central nervous system leukemia(CNSL),the patients were divided into the intrathecal injection group(n=12)and combination of intrathecal injection and radiotherapy group(n=13).The local remission situation,survival duration,and toxic and side effects of radiotherapy and chemotherapy were com-pared.Results For acute leukemia patients with extramedullary infiltration,the overall survival time(OS)in the radiotherapy group was better than that in the non-radiotherapy group(median OS:706 d vs.151 d,P=0.015).Subgroup analysis showed that the OS of the pre-transplantation radiotherapy group was better than that of the pre-transplantation non-radiotherapy group(median OS:592 d vs.386 d,P=0.035).For CNSL,the combination of intrathecal injection and radiotherapy group had a better OS than the intrathecal injection group(median OS:547 d vs.388 d,P=0.045).The event-free survival time(EFS)of the radiotherapy group was better than that of the non-radiotherapy group(median EFS:175 d vs.50 d,P=0.005).The COX pro-portional-hazards model showed that treatment with or without radiotherapy had a significant impact on the OS of acute leukemia patients with extramedullary infiltration.The risk of death in the pre-transplantation non-radiotherapy group was 2.231 times higher than that in the pre-transplantation radiotherapy group(HR=3.231,95％CI:1.021-10.227,P=0.046).Compared with the non-radiotherapy group,the radiother-apy group had a higher local remission and a lower risk of haematological toxicity,infection,and haemorrhage.Conclusion Radiotherapy can rapidly alleviate the local symptoms of acute leukemia complicated with extr-amedullary infiltration,prolong the survival time of these patients,and reduce the risk of hematologic toxicity,infection,and haemorrhage.

Objective:To evaluate the efficacy and safety of mitoxantrone hydrochloride liposome injection in the treatment of peripheral T-cell lymphoma (PTCL) in a real-world setting.Methods:This was a real-world ambispective cohort study (MOMENT study) (Chinese clinical trial registry number: ChiCTR2200062067). Clinical data were collected from 198 patients who received mitoxantrone hydrochloride liposome injection as monotherapy or combination therapy at 37 hospitals from January 2022 to January 2023, including 166 patients in the retrospective cohort and 32 patients in the prospective cohort; 10 patients in the treatment-na?ve group and 188 patients in the relapsed/refractory group. Clinical characteristics, efficacy and adverse events were summarized, and the overall survival (OS) and progression-free survival (PFS) were analyzed.Results:All 198 patients were treated with mitoxantrone hydrochloride liposome injection for a median of 3 cycles (range 1-7 cycles); 28 cases were treated with mitoxantrone hydrochloride liposome injection as monotherapy, and 170 cases were treated with the combination regimen. Among 188 relapsed/refractory patients, 45 cases (23.9%) were in complete remission (CR), 82 cases (43.6%) were in partial remission (PR), and 28 cases (14.9%) were in disease stabilization (SD), and 33 cases (17.6%) were in disease progression (PD), with an objective remission rate (ORR) of 67.6% (127/188). Among 10 treatment-na?ve patients, 4 cases (40.0%) were in CR, 5 cases (50.0%) were in PR, and 1 case (10.0%) was in PD, with an ORR of 90.0% (9/10). The median follow-up time was 2.9 months (95% CI 2.4-3.7 months), and the median PFS and OS of patients in relapsed/refractory and treatment-na?ve groups were not reached. In relapsed/refractory patients, the difference in ORR between patients with different number of treatment lines of mitoxantrone hydrochloride liposome injection [ORR of the second-line, the third-line and ≥the forth-line treatment was 74.4% (67/90), 73.9% (34/46) and 50.0% (26/52)] was statistically significant ( P = 0.008). Of the 198 PTCL patients, 182 cases (91.9%) experienced at least 1 time of treatment-related adverse events, and the incidence rate of ≥grade 3 adverse events was 66.7% (132/198), which was mainly characterized by hematologic adverse events. The ≥ grade 3 hematologic adverse events mainly included decreased lymphocyte count, decreased neutrophil count, decreased white blood cell count, and anemia; non-hematologic adverse events were mostly grade 1-2, mainly including pigmentation disorders and upper respiratory tract infection. Conclusions:The use of mitoxantrone hydrochloride liposome injection-containing regimen in the treatment of PTCL has definite efficacy and is well tolerated, and it is a new therapeutic option for PTCL patients.

Objective     To compare the clinical efficacy of subxiphoid video-assisted thoracoscopic surgery (XVATS) and conventional intercostal VATS (CVATS) extended thymectomy for myasthenia gravis (MG). Methods    The clinical data of MG patients who underwent extended thymectomy in the Department of Thoracic Surgery of Xuzhou Central Hospital from October 2016 to October 2021 and finished the follow-up were retrospectively reviewed. They were divided into an XVATS group and a CVATS group according to the procedure. The perioperative variables and clinical efficacy of the two groups were compared. Results    A total of 84 patients were collected, including 43 males and 41 females, with a mean age of 52.3 years. There were 41 patients in the XVATS group and 43 patients in the CVATS group. There was no mortality, cardiopulmonary thrombosis, prolonged air leak, or mediastinal infection. Additionally, the CVATS group recorded 5 (11.6%) patients of conversion to open thoracotomy, 1 (2.3%) patient of postoperative MG crisis, 1 (2.3%) patient of bleeding in thorax, and 1 (2.3%) patient of chylothorax. The operation time (127.4±50.4 min vs. 122.9±38.6 min), intraoperative bleeding [46.9 (25.7, 79.2) mL vs. 45.7 (21.9, 92.1) mL], incidence of complications [0 vs. 7.0% (3/43)], chest tube duration (4.3±1.9 d vs. 4.8±2.8 d), follow-up time (19.1±8.5 months vs. 22.5±13.7 months), the proportion of residual mediastinal fat tissue [12.2% (5/41) vs. 4.7% (2/43)], and total MG remission rate [29.3% (12/41) vs. 51.2% (22/43)] were not statistically different between the two groups (P>0.05). However, the two groups showed  significantly different incidence of conversion to open thoracotomy [0 vs. 11.6% (5/43), P=0.024], postoperative hospital stay time (8.2±3.3 d vs. 11.4±5.8 d, P=0.003) and total drainage volume [396.7 (173.8, 542.5) mL vs. 218.8 (102.1, 430.0) mL, P=0.038]. Conclusion    XVATS extended thymectomy is technically safe and feasible; however, more evidence is warranted before the recommendation of this approach for the treatment of MG.

Objective:To evaluate the radiological and clinical outcomes of the aged patients with unstable proximal humeral fracture (UPHF) treated with a locking plate and an intramedullary titanium mesh.Methods:A retrospective study was conducted to analyze the 43 aged patients with UPHF who had been admitted to Department of Orthopedics, Zhongda Hospital Affiliated to Southeast University from January 2017 to July 2019. There were 13 males and 30 females with an age of (71.3±10.3) years (from 60 to 83 years). All patients were treated with a locking plate and an intramedullary titanium mesh to support. The postoperative imaging measurements included changes in humeral head height (HHH) and neck-shaft angle (NSA) (the difference between 3 years after surgery and the second day after surgery, taken as an absolute value); the postoperative clinical measurements included visual analogue scale (VAS), range of shoulder motion, Constant-Murley shoulder functional score (Constant score), American Shoulder and Elbow Surgeons (ASES) score, and incidence of complications.Results:All patients were followed up for (39.2±2.3) months after surgery. The change in HHH at 3 years after surgery was (1.5±1.1) mm, and the change in NSA at 3 years after surgery 3.3°±2.6°. At 3 years after surgery, the VAS score was (2.2±1.3) points, the Constant score (79.2±9.1) points, and the ASES score (78.9±9.2) points; the range of forward extension was 143.2°±20.8°, the range of outward extension 139.3°±23.1°, and the range of outward rotation 55.1°±4.7°. Complications after surgery were found in 6 patients, including humeral head necrosis in 2 cases, ectopic ossification in 1 case, and infection in 3 cases.Conclusion:In the treatment of the aged patients with UPHF, a locking plate combined with an intramedullary titanium mesh can help to restore the medial column support, leading to fine radiological and clinical outcomes.

Objective    To explore the feasibility of early chest tube removal following single-direction uniportal video-assisted thoracoscopic surgery (S-UVATS) anatomical lobectomy. Methods    The clinical data of consecutive VATS lobectomy by different surgeons in Xuzhou Central Hospital between May 2019 and February 2022 were retrospectively reviewed. Finally, the data of 1 084 patients were selected for analysis, including 538 males and 546 females, with a mean age of 61.0±10.1 years. These patients were divided into a S-UVATS group with 558 patients and a conventional group (C-UVATS) with 526 patients according to the surgical procedures. The perioperative parameters such as operation time, blood loss were recorded. In addition, we assessed the amount of residual pleural effusion and the probability of secondary thoracentesis when taking 300 mL/d and 450 mL/d as the threshold of chest tube removal. Results    Tumor-negative   surgical margin was achieved without mortality in this cohort. As compared with the C-UVATS group, patients in the S-UVATS group demonstrated significantly shorter operation time (P<0.001), less blood loss (P=0.002), lower rate of conversion to multiple-port VATS or thoracotomy (P=0.003), but more stations and numbers of dissected lymph nodes as well as less suture staplers (P<0.001). Moreover, patients in the S-UVATS demonstrated shorter chest tube duration, less total volume of thoracic drainage and shorter postoperative hospital stay, with statistical differences (P<0.001). After excluding patients of chylothorax and prolonged air leaks>7 d, subgroup analysis was performed. First, assuming that 300 mL/d was the threshold for chest tube removal, as compared with the C-UVATS group, patients in the S-UVATS group would report less residual pleural effusion and less necessitating second thoracentesis with residual pleural effusion>500 mL (P<0.05). Second, assuming that 450 mL/d was the threshold for chest tube removal, as compared with the C-UVATS group, the S-UVATS group would also report less residual pleural effusion and less necessitating second thoracentesis with residual pleural effusion>500 mL (P<0.05). Further multivariable logistic regression analysis indicated that S-UVATS was significantly negatively related to drainage volume>1 000 mL (P<0.05); whereas combined lobectomy, longer operation time, more blood loss and air leakage were independent risk factors correlated with drainage volume>1 000 mL following UVATS lobectomy (P<0.05). Conclusion    The short-term efficacy of S-UVATS lobectomy is significantly better than that of the conventional group, indicating shorter operation time and less chest drainage. However, early chest tube removal with a high threshold of thoracic drainage volume probably increases the risk of secondary thoracentesis due to residual pleural effusion.

Nonalcoholic fatty liver disease (NAFLD) is a common chronic liver disease in China. There is no specific drug approved for marketing at home and abroad. At present, some adjuvant drugs are mainly used to improve the progress of the disease. Being familiar with and mastering the pharmacokinetic characteristics is very important for the selection and use of drugs. According to the characteristics of drug absorption, distribution, metabolism and excretion, reasonable drugs are selected to improve the therapeutic effect and reduce adverse reactions. Therefore, this paper reviews the pharmacokinetics and clinical significance of drugs commonly used to improve nonalcoholic fatty liver disease in hope of providing basis for clinical medication.

Objective:To investigate the risk factors for preoperative hypoxemia in geriatric patients with hip fracture.Methods:A case-control study was used to analyze the clinical data of 99 geriatric patients with hip fracture admitted to Zhongda Hospital affiliated to Southeast University between November 2020 and August 2021. There were 29 males and 70 females, aged 67-96 years [(82.6±6.2)years]. The patients were divided into hypoxemia group ( n=51) and non-hypoxemia group ( n=48) using partial arterial partial pressure of oxygen (PaO 2)<80 mmHg while breathing room air at emergency as the reference standard. The two groups were compared in terms of sex, age, fracture types, body mass index (BMI), American Society of Anesthesiologists (ASA) classification, pulmonary diseases diagnosed by preoperative chest CT [atelectasis, pleural effusion, chronic obstructive pulmonary disease (COPD)], time from injury to visit, New York Heart Association (NYHA) classification, Barthel index, KATZ index, modified Medicine Research Council (mMRC) dyspnea scale, numeric rating scale (NRS), smoking, drinking, comorbidities (hypertension, diabetes mellitus, Parkinson′s disease, Alzheimer′s disease, cerebral infarction, coronary atherosclerotic heart disease), body temperature, blood routine test at first examination (erythrocyte count, leukocyte count, C-reactive protein, hemoglobin), biochemistry (serum albumin, blood glucose, blood creatinine, blood urea nitrogen), electrolyte (serum potassium, serum sodium), and other related examinations [D-dimer, brain natriuretic peptide (BNP), lactic acid]. Univariate analysis was performed to the correlation of those indicators with preoperative hypoxemia. Multivariate Logistic regression analysis was used to identify the independent risk factors for preoperative hypoxemia in geriatric patients with hip fracture. Results:Differences in sex, age, fracture types, BMI, pulmonary diseases diagnosed by preoperative chest CT, time from injury to visit, Barthel index, KATZ index, NRS, smoking, drinking, comorbidities, body temperature, first laboratory results of erythrocyte count, biochemistry, electrolyte and other related examinations were not statistically significant between the two groups (all P>0.05). The two groups showed statistical differences in ASA classification, NYHA classification, mMRC dyspnea scale, leukocyte count at first examination, C-reaction protein and hemoglobin (all P<0.05). Univariate analysis indicated that ASA classification, NYHA classification, mMRC dyspnea scale, leukocyte count at first examination and C-reaction protein were correlated with the occurrence of preoperative hypoxemia in geriatric patients with hip fracture (all P<0.05). Multivariate Logistic regressions analysis indicated that higher mMRC dyspnea scale ( OR=2.30, 95% CI 1.10-4.81, P<0.05), higher leukocyte count at first examination ( OR=1.24, 95% CI 1.05-1.45, P<0.05), higher level of C-reaction protein ( OR=1.02, 95% CI 1.01-1.03, P<0.05) and higher level of hemoglobin ( OR=1.04, 95% CI 1.01-1.07, P<0.05) were significantly correlated with the occurrence of preoperative hypoxemia in geriatric patients with hip fracture. Conclusion:Higher mMRC dyspnea scale, higher leukocyte count, higher level of C-reaction protein and higher level of hemoglobin are independent risk factors for preoperative hypoxemia in geriatric patients with hip fracture.

Objective:Simultaneous integrated boost radiation technique in limited-stage small cell lung cancer is lack of evidence. This prospective study aims to evaluate whether the simultaneous integrated boost is as efficacious and safe as conventional fractionated radiotherapy.Methods:Patients diagnosed with treatment-naive and confirmed limited-stage SCLC were eligible. Participants were randomly assigned (1: 1) to receive simultaneous integrated boost radiotherapy (PGTV 60.2 Gy/2.15 Gy/28F, PTV 50.4 Gy/1.8 Gy/28F) or conventional fractionated radiotherapy (PTV 60 Gy/2 Gy/30F). The primary endpoint was 2-year progression-free survival, and the secondary endpoints were 2-year overall survival, 2-year local-regional recurrence-free survival and toxicity.Results:Between February 2017 and July 2019, 231 patients were enrolled. We analyzed 216 patients whose follow-up time was more than 2 years or who had died, among whom 106 patients in the conventional fractionated radiotherapy group and 110 patients in the simultaneous integrated boost radiotherapy group. The median follow-up time was 37 months (95% CI: 35.2-38.7). The 2-year progression-free survival rates were 45.2% vs. 38.2%( HR=1.22, 95% CI: 0.87-1.72, P=0.2). The 2-year overall survival rates were 73.5% vs. 60.9%( HR=1.35, 95% CI: 0.90-2.04, P=0.14). The 2-year local-regional recurrence-free survival rates were 68.7% vs. 69.9%( HR=0.98, 95% CI: 0.62-1.56, P=1.0). Multivariate analysis showed that early radiotherapy yielded better 2-year progression-free survival, overall survival and local-regional recurrence-free survival than delayed radiotherapy in two groups ( HR=1.69, 95% CI: 1.18-2.41, P=0.003; HR=1.72, 95% CI: 1.09-2.70, P=0.018; HR=1.66, 95% CI: 1.01-2.73, P=0.046). Tumor staging was an influencing factor of overall survival (stage Ⅲ vs. stage Ⅰ-Ⅱ, HR=3.64, 95% CI: 1.15-11.57, P=0.028). The most common grade 3-4 adverse events were myelosuppression (21.7% vs. 15.4%, P=0.83), radiation pneumonitis (4.7% vs. 2.7%, P=0.44) and radiation esophagitis (3.8% vs. 1.8%, P=0.51). Conclusions:Simultaneous integrated boost radiotherapy yields equivalent efficacy and toxicities to conventional fractionated radiotherapy for limited-stage small cell lung cancer. Early radiotherapy can enhance clinical prognosis.

Objective    To explore the safety and short-term efficacy of uniportal and three-port video-assisted thoracoscopic surgery (VATS) anatomical segmentectomy for pulmonary nodules. Methods    The clinical data of 225 patients with consecutive VATS anatomic segmentectomy by the same surgeon in Xuzhou Central Hospital between December 2019 and February 2022 was retrospectively reviewed. There were 85 males and 140 females with an average age of 57.3±11.6 years. These patients were divided into an uniportal VATS group (128 patients) and a three-port VATS group (97 patients) according to the surgical procedures. Single-direction anatomical procedure was utilized in the uniportal VATS group. The operation time, blood loss during the surgery, number of dissected lymph nodes, duration and volume of chest drainage, incidence of complications, and postoperative hospital stay of the two groups were compared. Results    There was no conversion to thoracotomy, addition of surgical ports, or mortality in this cohort, with tumor-negative surgical margins. The postoperative pathological staining confirmed 2 (0.9%) patients of lymph node metastasis (pN1) and 4 (1.8%) patients of adenocarcinoma with micropapillary component. As compared with the three-port VATS  group, patients in the uniportal VATS group had shorter operation time (115.6±54.7 min vs. 141.5±62.8 min, P=0.001), less intraoperative blood loss (77.2±49.6 mL vs. 96.9±98.1 mL, P=0.050), less total thoracic drainage [394.0 (258.8, 580.0) mL vs. 530.0 (335.0, 817.5) mL, P=0.010], and shorter postoperative hospital stay (7.7±3.7 d vs. 8.7±3.5 d, P=0.031). Both groups showed similar stations and numbers of dissected lymph nodes, incidence of operation-related complications, duration of chest tube drainage, and the drainage volume in the first and second postoperative days (P>0.05). No tumor recurrence or metastasis was recorded in this cohort during the follow-up of 11 (1-26) months. Conclusion    Single-direction uniportal VATS anatomical segmentectomy is safe and feasible for the treatment of pulmonary nodules, with better short-term efficacy as compared with the three-port VATS procedure, including shorter operation time, less intraoperative blood loss and thoracic drainage. However, further studies are needed to elucidate the precise indications of segmentectomy for lung cancer.

Objective:To evaluate the application method and effect of standardized scenario simulation teaching based on Kirkpatrick model in vocational protection education for nursing students.Methods:A historical controlled trial study was designed. Practical nursing students enrolled in 2018-2019 and 2017-2018 were selected into the experimental group ( n=203) and control group ( n=196), respectively. The experimental group adopted standardized scenario simulation teaching in the prevention and control education of needlestick injuries, and the control group adopted traditional classroom lecture. Using the Kirkpatrick model, the teaching effect of needlestick injuries protection for nursing students were compared between the 2 groups from such 4 levels as in reaction level, learning level, behavior level and results level. Results:There was no significant difference in the baseline data between the two groups in terms of age, gender, educational background and test scores of nursing professional knowledge as compared to that before practice. In reaction level: the nursing students' satisfaction of experimental group in teaching methods ( t=25.149, P<0.001) and teaching environment ( t=12.827, P<0.001) are higher than that of the control group, with statistical significance. In learning level: the test scores of needlestick injury knowledge in experimental group were significantly higher than those in control group ( t=8.221, P<0.001). In behavior level: the level of needlestick injury protection behavior in the experimental group was significantly higher than that in the control group ( t=9.250, P<0.001), and the knowledge conversion rate in the experimental group was higher than that in the control group ( t=6.054, P<0.001). In results level: the needlestick injuries incidence of experimental group was significantly lower than that of the control group ( χ2=15.815, P<0.001), the reported rate of needlestick injuries of experimental group was significantly lower than that of the control group ( χ2=14.185, P<0.001). Conclusion:The implementation of standardized scenario simulation teaching can effectively improve the effectiveness of vocational protection learning and reduce the incidence of needlestick injuries.