This study aimed to investigate the efficacy and safety of blinatumomab in adult patients with acute B-lymphoblastic leukemia (B-ALL) by conducting a retrospective analysis of the clinical data from 16 patients with B-ALL receiving blinatumomab at the Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, from June 2022 to April 2024. Among the 16 patients, 10 were classified as relapsed/refractory B-ALL and 6 were newly diagnosed Ph - B-ALL. Of the 10 patients with relapsed/refractory B-ALL, 8 achieved complete remission (CR) and minimal residual disease (MRD) negativity after one blinatumomab treatment cycle. In the 6 newly diagnosed patients, the bone marrow MRD was negative after one blinatumomab treatment cycle after initial induction chemotherapy followed by sequential blinatumomab treatment. Among them, four completed allogeneic hematopoietic stem cell transplantation and continuously maintained CR. This indicates that blinatumomab exhibits a high remission rate in both patients with relapsed/refractory and newly diagnosed B-ALL, thereby providing the possibility of bridging to transplantation and extending patient survival, with manageable adverse reactions.

Objective:To discuss the clinical value of pan-immune inflammation index(PIV)in predicting the major adverse cardiovascular events(MACE)within 1 year after percutaneous coronary intervention(PCI)in the elderly patients with coronary heart disease,and to clarify the role of inflammatory response in postoperative recovery and prognosis of the patients with coronary heart disease.Methods:A total of 150 elderly patients with coronary heart disease who underwent PCI from July 2020 to August 2023 were selected as the research subjects;according to the occurrence of MACE within 1 year after operation,they were divided into MACE group(n=28)and non-MACE group(n=122);the baseline data and biochemical indicators of the patients were collected,and PIV was calculated;multivariate Logistic regression was used to analyze the influencing factors of MACE within 1 year after PCI in the elderly patients with coronary heart disease;receiver operating characteristic(ROC)curve was used to analyze the predictive value of PIV for MACE within 1 year after PCI in the elderly patients with coronary heart disease.Results:Compared with non-MACE group,the levels of total cholesterol(TC)and low-density lipoprotein cholesterol(LDL-C),neutrophils(NEUT),platelets(PLT)counting and PIV in the patients in MACE group were significantly increased(P<0.05);there were no significant differences in other data between two groups(P>0.05).The multivariate Logistic regression analysis results showed that the levels of TC(OR=1.571,95％CI:1.088-2.270)and LDL-C(OR=32.506,95％CI:8.880-118.994)and PIV(OR=1.014,95％CI:1.010-1.019)were the influencing factors of MACE within 1 year after PCI in the elderly patients with coronary heart disease(P<0.05).The ROC curve analysis results showed that the area under the ROC curve(AUC)of PIV for predicting MACE was 0.857(95％CI:0.762-0.951),the sensitivity was 0.821,the specificity was 0.959,the maximum Youden index was 0.780,and the best cut-off value was 778.805(P<0.01).Conclusion:PIV has important predictive value for MACE within 1 year after PCI in elderly patients with coronary heart disease.

ObjectiveTo investigate the contamination status, transmission risk and drug resistance of Klebsiella pneumoniae (KP) on the object surfaces in the surrounding environment of hospitalized patients infected with carbapenem-resistant Klebsiella pneumoniae (CRKP) , so as to provide a scientific guidance for the prevention and control of healthcare-associated infection. MethodsSamples from the surfaces of objects in the surrounding environment of CRKP infected patients living in the intensive care unit (ICU) and hand specimens from healthcare workers were collected for KP isolation and identification, as well as drug susceptible test in a medical institution located in Minhang District, Shanghai from 2021 to 2023. Additionally, both univariate and multivariate logistic regression analyses were used to identify the influencing factors associated with KP contamination in the hospital environment. ResultsA total of 546 surface samples were collected from the surrounding environment objects of 15 patients infected with CRKP, with a KP detection rate of 6.59% (36/546).The KP detection rate in the ICU of general ward (10.22%) was higher than that in the ICU of emergency department (2.94%) (χ²=12.142, P<0.001). Moreover, the KP detection rate on the surfaces of patient-contacted items (15.66%) was higher than that on shared-use items (6.25%), cleaning items (10.00%), and medical supplies (3.30%) (χ²=17.943, P<0.001). Besides, the detection rate of KP in items sent out of hospital for disinfection (15.38%) was higher than that in those self-disinfected (4.20%) (χ²=19.996, P<0.001).The highest detection rate of KP was observed in high-temperature washing (15.13%, 18/119) (χ²=21.219, P<0.001), while the lowest detection rate was observed in antibacterial hand sanitizer with trichlorohydroxydiphenyl ether sanitizing factor (0, 0/60) ( χ²=21.219, P<0.001).The detection rate of KP in samples taken more than 24 hours after the last disinfection (23.08%) was higher than that in those taken at 4 to24 hours (12.90%) and less than 4 hours (4.22%) (χ²=23.398,P<0.001).ICU of general ward (OR=4.045, 95%CI: 2.206‒7.416), patient-contacted items (OR=3.113, 95%CI: 1.191‒8.141), and self-disinfection ( OR=0.241, 95%CI:0.144‒0.402) were influencing factors for KP contamination in environmental surface. From 2021 to 2023, the drug resistance rates of hospital environmental KP isolates showed an upward trend (P<0.001) to antibiotics such as ceftazidime and gentamicin. Furthermore, high drug resistance rates of KP (>90%) were observed to ciprofloxacin, levofloxacin, cefotaxime, ceftriaxone, and cefepime. ConclusionCRKP can be transmitted outward through the surfaces of objects in the patients’ surroundings, and the drug resistance situation is severe. In clinical settings, it is necessary to implement isolation measures for CRKP infection patients, to increase the frequency of disinfection for objects in their surroundings, to strengthen hand hygiene practices, and to use antibiotics appropriately.

Hepatic angiosarcoma is a rare,highly malignant tumor originating from liver blood vessels or lymphatic vessels.Its clinical manifestations and imaging examinations are not specific,and pathological biopsy is needed to confirm the diagnosis.This article reports a 47-year-old male patient with hepatic angiosarcoma,who has clinical manifestations of abdominal pain,jaundice,and disseminated intravascular coagulation.The CT and MRI findings of this patient are similar to hepatic sinusoidal obstruction syndrome.Relevant literature on hepatic angiosarcoma in recent years was reviewed.The manifestations,diagnosis and treatment of hepatic angiosarcoma were summarized to improve clinicians'understanding of the disease.

Hepatic angiosarcoma is a rare,highly malignant tumor originating from liver blood vessels or lymphatic vessels.Its clinical manifestations and imaging examinations are not specific,and pathological biopsy is needed to confirm the diagnosis.This article reports a 47-year-old male patient with hepatic angiosarcoma,who has clinical manifestations of abdominal pain,jaundice,and disseminated intravascular coagulation.The CT and MRI findings of this patient are similar to hepatic sinusoidal obstruction syndrome.Relevant literature on hepatic angiosarcoma in recent years was reviewed.The manifestations,diagnosis and treatment of hepatic angiosarcoma were summarized to improve clinicians'understanding of the disease.

This study aimed to investigate the efficacy and safety of blinatumomab in adult patients with acute B-lymphoblastic leukemia (B-ALL) by conducting a retrospective analysis of the clinical data from 16 patients with B-ALL receiving blinatumomab at the Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, from June 2022 to April 2024. Among the 16 patients, 10 were classified as relapsed/refractory B-ALL and 6 were newly diagnosed Ph - B-ALL. Of the 10 patients with relapsed/refractory B-ALL, 8 achieved complete remission (CR) and minimal residual disease (MRD) negativity after one blinatumomab treatment cycle. In the 6 newly diagnosed patients, the bone marrow MRD was negative after one blinatumomab treatment cycle after initial induction chemotherapy followed by sequential blinatumomab treatment. Among them, four completed allogeneic hematopoietic stem cell transplantation and continuously maintained CR. This indicates that blinatumomab exhibits a high remission rate in both patients with relapsed/refractory and newly diagnosed B-ALL, thereby providing the possibility of bridging to transplantation and extending patient survival, with manageable adverse reactions.

Objective:To explore the effect of self-health monitoring information platform in health management of pregnant women at home, so as to provide a reference for self health management of pregnant women at home.Methods:From January 2020 to January 2021, a total of 1 683 pregnant women in Hangzhou Women's Hospital were selected as the research objects using the convenient sampling method, and divided into the intervention group ( n=815) and the control group ( n=868) . The control group received routine antenatal examination, and the intervention group conducted self-health monitoring information platform and routine antenatal examination. The school attendance rate, sleep quality during pregnancy, detection rate of fetal distress, pregnancy weight gain and premature birth rate were compared between the two groups. Results:The school attendance rate, sleep quality during pregnancy, detection rate of fetal distress of the the intervention group were higher than those of the control group, the number of pregnant women with normal weight gain was higher than that of the control group, premature birth rate of the intervention group was lower than that of the control group, and the differences were statistically significant ( P<0.05) . Conclusions:Self-health monitoring information platform can improve the quality of sleep and normal weight gain during pregnancy of pregnant women, reduce the incidence of preterm birth, which has important application value under the background of the national "universal three-child" policy.

Objective:To investigate clinical efficacy and safety of venetoclax (VEN)-based regimens in the treatment of acute myeloid leukemia (AML).Methods:The clinical data of 41 AML patients treated with venetoclax-based regimens from January 2021 to December 2021 in Ruijin Hospital North of Shanghai Jiao Tong University School of Medicine were retrospectively analyzed. The treatment regimens included VEN+demethylating drugs ± gene mutation inhibitors or VEN+chemotherapy with a median number of 2 courses (1- 5 courses).Results:The median age of all patients was 60 years (18-73 years), and there were 24 males and 17 females. After 1 course of VEN-based therapy, 22 (53.7%) patients achieved complete remission (CR) or morphological complete remission without complete blood count recovery (CRi), including 5 patients achieving minimal residual disease (MRD) negative. After 2 courses of treatment, of 17 patients available for efficacy evaluation, 7 patients achieved MRD negative. Among 20 relapsed/refractory AML patients, 9 cases achieved CR/CRi after 1 course of treatment, of which 1 patient had MRD negative. Among 21 patients initially treated and re-treated, 13 cases achieved CR/CRi and 1 case achieved partial remission after 1 course of treatment, of which 4 cases had MRD negative.Conclusions:VEN-based treatment regimens for AML have a high remission rate and tolerable adverse effects.

Objective To investigate the effect of pathologically elevated-cyclic stretch induced by hypertension on mitochondrial biogenesis of vascular smooth muscle cells (VSMCs), and the role of PGC1α in this process. Methods The Flexcell-5000T stretch loading system in vitro was applied to VSMCs with a frequency of 1. 25 Hz and an amplitude of 5% or 15% to simulate the mechanical environment under normal physiological or hypertensive pathological conditions respectively. Western blotting and qPCR were used to detect the expression of PGC1α, citrate synthase and mitochondrial DNA (mtDNA) copy number in VSMCs under normal physiological or hypertensive pathological conditions. VSMCs were treated with PGC1α specific activator ZLN005 to promote PGC1α expression or specific interfering fragment siRNA to inhibit PGC1α expression in order to detect the effect on citrate synthase and mtDNA copy number. Results Compared with 5% physiological cyclic stretch, 15% pathologically elevated-cyclic stretch significantly suppressed the expression of PGC1α, citrate synthase and mtDNA copy number in VSMCs. Compared with control group, the protein expression of PGC1α was significantly decreased and increased respectively. When VSMCs transfected with PGC1α siRNA or incubated PGC1α activator ZLN005, the expression of citrate synthase and mtDNA copy number were also significantly down regulated and up-regulated in VSMCs accordingly. Under physiological cyclic stretch conditions, the protein level of PGC1α was significantly down-regulated by PGC1α siRNA, which also significantly down-regulated citrate synthase expression and mtDNA copy number. The protein expression of PGC1α was significantly up-regulated by ZLN005, which also enhanced the expression of citrate synthase and mtDNA copy number. Conclusions The pathological cyclic stretch induced by hypertension significantly down-regulated the expression of citrate synthase and mtDNA copy number via suppressing the expression of PGC1α, resulting in mitochondrial dysfunction of VSMCs. PGC1α may be a potential therapeutic target molecule to alleviate the progression of hypertension.

ObjectiveTo determine the epidemiological characteristics and risk factors of a norovirus GII.17 outbreak in Minhang District of Shanghai in 2018， and provide evidence for prevention and control measures of norovirus infection. MethodsDescriptive epidemiological analysis was performed. In addition， a retrospective cohort study was conducted to determine the risk factors. ResultsFrom May 30^th to June 1^st of 2018， a total of 132 cases （126 clinical cases and 6 confirmed cases） were documented，with an attack rate of 29.20%（132/452）.All cases were children in a kindergarten， with the average age of 5 years and 43.9% being male. The cases were reported in all the classes， with no clustering by class or floor．The epidemic curve was characterized by a point source exposure， which was estimated to be probably between 7 AM on May 30^thand 0：30 AM on May 31^st. The retrospective cohort study showed that the attack rate significantly differed between the children who had taken and did not take the school lunch （RR=∞） on May 30^th，and those who had taken and did not take seafood noodles （RR=4.11， 95%CI：1.09-15.55） （P<0.05）. Among a total of 73 specimens， six specimens collected in child cases and one specimen in an asymptomatic chef tested positive for GII.17 type of norovirus. In addition， one retained food specimen of seafood noodles was positive for Aeromonas hydrophila. Viral shedding in the asymptomatic chef remained over 30 days. ConclusionThe outbreak was caused by seafood noodles contaminated by norovirus. It warrants enhancement in the regulation of food safety in canteens and regular examination of norovirus infection in catering industry employees.