Objective To compare the effect of crystalloid and crystalloid plus albumin in the treatment of pediatric septic shock.Methods Data of 63 pediatric patients with septic shock admitted to Department of Critical Care Medicine of Hebei Provincial Children's Hospital were collected and retrospectively analyzed.The patients were divided into two groups according to whether they received albumin for volume resuscitation within 1 day after admission or not.The patients in observation group (crystalloid + albumin group,n =33) received normal saline (20 mL/kg) followed by 1 g/kg albumin 30 minutes after admission,and those in control group (crystalloid group,n =30) received only normal saline (20 mL/kg) 30 minutes after admission,and normal saline resuscitation was continued according to the effect of fluid therapy.Anti-infection and vasoactive drugs strategies were the same in both groups.The first-hour infusion volume,time showing stable hemodynamics,the incidence of pulmonary edema,and blood lactate levels at 0,6,12 hours after achieving the goals were compared,and blood lactate clearance rates were calculated.Results The first-hour infusion volume time in the observation group was lower than that in control group (mL:41.56 ± 10.50 vs.57.24 ± 7.54,t=4.596,P=0.000),and time showing stable hemodynamics was shorter than that in control group but without statistically significant difference (minutes:219.87 ±70.23 vs.287.10 ± 67.00,t=2.047,P=0.360).The incidence of pulmonary edema in observation group was slightly lower than that in control group [6.1％ (2/33) vs.10.0％ (3/30),x2±2.272,P=0.259].The lactic acid levels were decreased gradually along with rehabilitation time,while lactate clearance rate was increased in both groups.At 0 hour and 6 hours after resuscitation,the lactate level (mmol/L) in the observation group was significantly lower than that in control group [0 hour:3.65 ± 2.84 vs.5.72 ± 2.11,t＝ 1.940,P=0.046; 6 hours:2.12 ± 1.21 vs.4.09 ± 1.45,t=2.892,P=0.005],while the lactate clearance rate was significantly increased compared with control group [0 hour:(0.38 ± 0.15)％ vs.(0.18 ± 0.09)％,t=1.447,P=0.018; 6 hours:(0.62 ± 0.14)％ vs.(0.51 ± 0.11)％,t=1.920,P=0.047].However,at 12 hours after resuscitation,there were no statistically significant differences in the lactic acid level (mmol/L:1.46 ± 0.39 vs.1.54 ± 1.90,t=0.450,P=0.072) and the lactate clearance rate [(0.78 ± 0.19) ％ vs.(0.77 ± 0.18) ％,t =0.091,P=0.928] between observation group and control group.Conclusion Albumin resuscitation in children with septic shock can stabilize hemodynamics earlier,reduce the incidence of pulmonary edema,and improve the successful rescue rate of refractory septic shock.

Objective To provide useful information for the diagnosis and differentiation through exploring the tumor with polyserositis as the initial symptom.Methods There was a case present with fever,poor spirit,abdominal distention and edema in Children's Hospital of Hebei Province.The characteristics and results of physical examination were summarized and discussed according to the condition evolution phases.The possible etiological factors were analyzed.The treatment was adjusted.Further physical examination was improved.The final diagnosis was tracked.Results After getting admitted to hospital,the patient received CT scan and ultrasound examination for many times.The results suggested the pericardial effusion,pleural effusion,peritoneal effusion and cardiac insufficiency.The child had made a slight improvement through treatment.However,he had hemiparesis.Cerebral infarction was demonstrated through magnetic resonance imaging(MRI),magnetic resonance angiography (MRA),magnetic resonance venography (MRV).Ultrasound showed that there was more pericardial effusion,aortic root solid low echo mass,pulmonary arterial wall stiffness,left and right pulmonary artery blood flow speed increased.Neck and chest enhanced CT showed mediastinal lesions.Pathology examination results suggested myeloid sarcoma after referral to superior hospital.Conclusions When children had an unexplained polyserositis,more comprehensive analysis were needed.The illness condition should be explained with Monism as far as possible.Repeated inspections would be necessary when the pathogenesis was not clear.Careful watch for the tumor should be kept.

Objective To explore the effectiveness and safety of high frequency oscillatory ventilation(HFOV) in children with measles complicated with severe pneumonia and the acute respiratory distress syndrome(ARDS).Methods A total of 63 children with measles complicated with severe pneumonia and the ARDS were divided into conventional mechanical ventilation(CMV) group and HFOV group.The PaO2/ FiO2,oxygenation index (OI),HR and mean arterial pressure (MAP) before treatment and 12 h,24 h,48 h after treatment were detected.The rate of air leak and the motality in two groups were compared.The efficacy and safety of HFOV treatment were evaluated in children with measles complicated with pneumonia and severe ARDS.Results In HFOV group,the PaO2/FiO2 ratio was elevated and OI was decreased significantly after 12 h and maintained for at least 48 h.Compared with CMV group,OI of HFOV group improved more significantly,and the difference was statistically significant.The ventilation time in HFOV group was shorten than that in CMV group[(7.97 ±3.06) d vs.(11.03 ±3.60) d],but there was no statistical difference between two groups (P ＞ 0.05).The heart rate after treatment 48 h was gradually returned to normal,and there was no statistical difference between the two groups.There were no significant changes in the MAP of two groups after treatment.There were no significant differences in the incidence of air leak between the CMV group and the HFOV group(24.2％ vs.16.7％).The mortality rate of CMV group and HFOV group was respectively 45.5 ％ and 33.3 ％,and there was no statistically significant difference.Conclusion HFOV was effective in oxygenation and seems to be safe for pediatric patients with measles complicated with severe pneumonia and the ARDS.Also it didn't influence the occurrence of complications.It has no adverse influence on hemodynamic parameters.Early intervention of HFOV is safe and effective for the children with measles complicated with severe pneumonia and ARDS.

Animals ; Astragalus membranaceus ; Endotoxemia ; drug therapy ; metabolism ; Interferon-gamma ; analysis ; Interleukin-4 ; analysis ; Male ; Mice ; Phytotherapy ; Plant Extracts ; therapeutic use ; Th1 Cells ; drug effects ; metabolism ; Th2 Cells ; drug effects ; metabolism

Objective To observe the changes in the lung aquaporin 1 (AQP1) expression in adrenaline-induced pulmonary edema(PE),and the effect of Methylprednisolone (MP) on its expression.Methods Fifty Wister rats of 1-month old were randomly divided into 5 groups (10 rats in each group):control,adrenaline PE,MP A,MP B,and MP C groups,respectively.Control group animals were treated with 0.27 mL 9 g/L saline;PE group was given 2.7 mg/kg adrenaline (1 ∶ 1 000) by intraperitoneal injection;MP A,MP B and MP C groups rats were intraperitoneally injected 10 mg/kg,20 mg/kg,and 30 mg/kg MP intraperitoneally immediately after intraperitoneal injection of adrenaline,respectively.The morphology changes in the lungs were observed with HE staining,and lung wet/dry weight (W/D) was measured.The levels of AQP1 mRNA,AQP1 protein,and AQP1 distribution in the lung tissues were detected by using real time-polymerase chain reaction,Western blot,and immunohistochemical method.Results (1)PE group exhibited a faster breathing rate,and double lung volume increased significantly;there was a visible hemorrhagic distribution in the lung surface and cross section,endotracheal filled with white or pink foam liquid.(2) The W/D of rats in PE group was higher than that of the control group (6.50 ± 0.53 vs.4.59 ± 0.36,P ＜ 0.05).(3) Pathological grading of PE group (3.80 ± 0.42) increased significantly compared with that of the MP A group (3.30 ± 0.48),MP B group (2.30 ± 0.68) and MP C group (1.20 ± 0.42),and there were significant differences (all P ＜ 0.05).(4) Immunohistochemistry showed that the expression of AQP1 in PE group (1.20 ± 0.79) was reduced compared with that of the control group (4.20 ± 1.03),and there were significant differences (all P ＜ 0.05).(5) The levels of AQP1 mRNA and AQP1 protein (0.12 ± 0.43 and 0.20 ± 0.04) were significantly lower than those of the control group (0.90 ± 0.32 and 0.60 ± 0.15),and there were significant differences (all P ＜ 0.05);compared with PE group,AQP1 mRNA and AQP1 protein of each group with MP treatment showed the highest values (MP A group:0.17 ±0.06 and 0.32 ±0.04,MP B group:0.39 ±0.13 and 0.37-±0.09,MP C group:0.61 ±0.21 and 0.44 ± 0.07) (all P ＜ 0.05).Conclusion The expression of AQP1 reduced in adrenaline-induced PE rats.MP could improve the expression of AQP1,and significantly ameliorate the PE and bleeding.

Objective To investigate the relationship between the coagulation system status and the pulmonary hemorrhage in children with severe hand,foot and mouth disease(HFMD)and approach the clinical significance of early detection of coagulation function. Methods By prospective case design method,89 cases with HFMD admitted to Department of Critical Care Medicine of Hebei Provincial Children Hospital from July 2010 to July 2012 were enrolled. The children were divided into severe group(46 cases)and critical group(43 cases)according to the severity of disease,and the children in critical group were subdivided into survivor group(26 cases)and non-survivor group (17 cases). Forty-four healthy children with the same age and in the same period were served as healthy control group. The blood of children was collected immediately after admission for determination of blood routine, prothrombin time(PT),thrombin time(TT),activated partial thrombin time(APTT),fibrinogen(Fg),and D-dimer (DD). Results There were no significant differences in PT,TT,APTT and Fg among severe group,critical group and health control group(all P>0.05). The blood platelets count(PLT)in severe group and critical group was significantly lower than that in health control group(×109/L:245±130,237±156 vs. 389±120),while the DD was significantly higher than that in healthy control group(mg/L:0.34±0.67,0.41±0.08 vs. 0.24±0.13),and the DD in critical group was obviously higher than that in severe group(all P<0.05). The mortality rate in critical group was 39.5%,and there were no significant differences in PT,APTT,Fg,TT and PLT between survivor group and non-survivor group(all P>0.05),but the DD in non-survivor group was significantly lower than that in survivor group(mg/L:0.60±0.09 vs. 0.12±0.09,P<0.05). Conclusions In children with severe or critical HFMD, the coagulation factor and blood platelet were in a state of mobilization,mild consumption state with the existence of fibrinolytic inhibition,but without systemic bleeding tendency,therefore it is in a compensatory stage of disseminated intravascular coagulation(DIC),not the mechanism of pulmonary hemorrhage. The monitor of DD has its clinical significance in evaluations of the disease situation and its prognosis.

Objective:To investigate the radiation dosimetry and biodistribution of 68Ga-FAPI-04 PET/CT in patients with hepatobiliary tumor. Methods:A total of six patients with hepatic lesions who underwent PET/CT examination in Peking Union Medical College Hospital were enrolled. After intravenous injection of radiotracer 68Ga-FAPI-04 at (170.57 ± 14.43) MBq, whole-body imaging were performed at the time points of 3, 10, 15, 20, 30 and 60 min, respectively. Biodistribution pattern was observed. Regions of interest were manually delineated. Radiation dosimetry of all target organs were calculated by Olinda/EXM software. Results:The radioactive uptake dissipated gradually in liver whereas it was relatively stable in tumor lesions. The average SUV max of tumor lesions reached the maximum value (13.87± 2.55) at 20 min after injection. The target-to-background ratio increased with time, reaching the maximum value (10.09 ± 8.17) at 30 min after injection. The average effective dose in total body was (0.020 ± 0.002) mSv/MBq and organ with the highest effective dose was bladder wall at (0.146 ± 0.035) mSv/MBq. Conclusions:The effective dose in total body of 68Ga-FAPI-04 was similar to that of 18F-FDG. 68Ga-FAPI-04 is expected to be a PET/CT radiotracer for hepatobiliary tumors in consideration of rapid tumor uptake, low accumulation of liver background, and no influence of blood sugar levels.

Objective:To prepare 68Ga-fibroblast activation protein inhibitor (FAPI)-04, and evaluate its biodistribution and imaging characteristics in animals and healthy volunteers, in order to investigate the clinical translation potential. Methods:68Ga-FAPI-04 was synthesized by a manual method and its radiolabeling yield, radiochemical purity, and stability ( in vivo and in vitro) were analyzed. ICR mice ( n=16) were scarified at 5, 30, 60 and 120 min postinjection of 68Ga-FAPI-04 (1.11 MBq) to measure radioactive counts in main organs. The dynamic mircoPET imaging was acquired for 60 min on 3 ICR mice, and tumor imaging capabilities were examined with nude mice bearing HepG2 tumors. Furthermore, 2 healthy volunteers (1 male with age of 64 years, 1 female with age of 56 years) were recruited for the investigation of probe biodistribution in humans. A serial whole-body dynamic PET/CT scan was performed immediately following injection. Results:68Ga-FAPI-04 was synthesized within 20 min with the radiochemical yield of (68.7±4.0)% (decay corrected). The radiochemical purities of 68Ga-FAPI-04 were over 99% and the products were stable for 180 min in vitro and for 90 min in blood. 68Ga-FAPI-04 was mainly cleared through urinary tracts, while other organs only showed mild tracer accumulation. MicroPET imaging showed high uptake of 68Ga-FAPI-04 in the tumor tissue of mice, and the ratio of tumor/liver was 2.14±0.01 (35 min). The PET/CT imaging results of healthy volunteers revealed 68Ga-FAPI-04 could be quickly cleared. Conclusion:68Ga-FAPI-04 has many advantages for PET imaging, such as easy labeling, good stability, quick clearance and low background signals in the liver, which can be used as an attractive PET tracer for detection hepatocellular carcinoma.

Objective:To analyze the difference of clinical characteristics and outcomes of infants with moderate and severe pediatric acute respiratory distress syndrome(PARDS)diagnosed according to baseline oxygenation index(OI) in pediatric intensive care unit(PICU).Methods:Second analysis of the data collected from the "Efficacy of pulmonary surfactant (PS) in the treatment of children with moderate and severe ARDS" program.Retrospectively compare of the differences in clinical data such as general condition, underlying diseases, OI, mechanical ventilation, PS administration and outcomes among infants with moderate and severe PARDS divided by baseline OI who admitted to PICUs at 14 participating tertiary hospitals from 2016 to December 2021.Results:Among the 101 cases, 55 cases (54.5%) were moderate and 46 cases (45.5%) were severe PARDS.The proportion of male in the severe group (50.0% vs.72.7%, P=0.019) and the pediatric critical illness score(PCIS)[72 (68, 78) vs.76 (70, 80), P=0.019] were significantly lower than those in the moderate group, while there was no significant difference regarding age, body weight, etiology of PARDS and underlying diseases.The utilization rate of high-frequency ventilator in the severe group was significantly higher than that in the moderate group (34.8% vs.10.9%, P=0.004), but there was no significant difference in PS use, fluid load and pulmonary complications.The 24 h OI improvement (0.26±0.33 vs.0.04±0.34, P=0.001) and the 72 h OI improvement[0.34 (-0.04, 0.62) vs.0.15 (-0.14, 0.42), P=0.029)]in the severe group were significantly better than those in the moderate group, but there was no significant difference regarding mortality, length of hospital stay and intubation duration after diagnosis of PARDS between the two groups. Conclusion:In moderate and severe(divided by baseline OI) PARDS infants with invasive mechanical ventilation, children in severe group have better oxygenation improvement in the early stage after PARDS identified and are more likely to receive high frequency ventilation compared to those in moderate group.Baseline OI can not sensitively distinguish the outcomes and is not an ideal index for PARDS grading of this kind of patient.