BACKGROUND: Hemorrhagic stroke (HS) is associated with significant disability and mortality. However, the relationship between meteorological factors and hemorrhagic stroke, as well as the potential moderating role of these factors, remains unclear. METHODS: Daily data on HS, air pollution, and meteorological conditions were collected from January 2015 to December 2021 in Ganzhou to analyze the relationship between meteorological factors and HS admissions. This analysis employed a time-stratified case-crossover design in conjunction with a distributional lag nonlinear model. Additionally, a bivariate response surface modelling was utilized to further investigate the interaction between meteorological factors and particulate matter. The study also stratified the analyses by gender and age. To investigate the potential impact of extreme weather conditions on HS, this study defined the 97.5th percentile as representing extremely high weather conditions, while the 2.5th percentile was classified as extremely low. RESULTS: In single-day lags, the risk of admissions for HS was significantly associated with extremely low temperature (lag 1-2 and lag 13-14), extremely low humidity (lag 1 and lag 9-12), and extremely high precipitation (lag 2-7). Females exhibited greater susceptibility to extremely low temperature than males within the single-day lag pattern in the subcomponent layer, with a maximum relative risk (RR) that was 7% higher. In the cumulative lag analysis, the risk of HS admissions was significantly associated with extremely high temperature (lag 0-8∼lag 0-14), extremely low humidity (lag 0-2∼lag 0-14), and extremely high precipitation (lag 0-4∼lag 0-14). Within the cumulative lag day structure of the subcomponent layer, both extremely low and extremely high temperature had a more pronounced effect on females and aged ≥65 years. The risk of HS admissions was positively associated with extremely high barometric pressure in the female subgroups (lag 0-1 and lag 0-2). The highest number of HS admissions occurred when high PM_2.5 concentrations coexisted with low precipitation. CONCLUSIONS Meteorological factors were significantly associated with the risk of hospital admissions for HS. Individuals who were female and aged ≥65 years were found to be more susceptible to these meteorological influences. Additionally, an interaction was observed between airborne particulate matter and meteorological factors. These findings contributed new evidence to the association between meteorological factors and HS.
China/epidemiology* ; Humans ; Female ; Male ; Aged ; Middle Aged ; Cross-Over Studies ; Hospitalization/statistics & numerical data* ; Adult ; Hemorrhagic Stroke/etiology* ; Meteorological Concepts ; Weather ; Particulate Matter/analysis* ; Air Pollution/adverse effects* ; Environmental Exposure/adverse effects* ; Aged, 80 and over ; Young Adult

Objective:To understand the morphologic and functional changes of ventricles between pre- and post- cone reconstruction(CR) surgery in children with Ebstein’s anomaly(EA).Methods:The clinical data of children with EA who underwent CR and cardiac magnetic resonance(CMR) in Shanghai Children’s Medical Center between July 2011 to April 2019 were collected and analyzed. Ventricular functions were assessed with the use of ejection fraction(EF), stroke volume index(SVI), cardiac output(CO), and cardiac index(CI). Ventricular morphologies were assessed with the use of end-diastolic ventricular volume(EDV), end-diastolic ventricular volume index(EDVI) and ventricular cine images. Paired student t tests and Wilcoxon rank sum tests were used for statistical analysis. Results:There were a total of 32 children with EA who underwent CR and CMR, with 13 males and 19 females, a median operative age of 2.9 years old(0.6-15.5 years old), and a mean follow-up time of(4.4±1.9) years. Seven patients had both preoperative and postoperative CMR, with a mean follow-up time of(3.3±1.4) years; Eleven patients had two or more postoperative CMR, with a mean interval time of(1.9±1.0) years. After the surgery, the median tricuspid-regurgitation grade decreased from 3 to 2, and the median New York Heart Association functional class improved from 2.5 to 1, the left ventricle(LV)-SVI, LV-EDV and LV-EDVI increased from 29.8 ml/m 2 to 43.2 ml/m 2( P=0.039), from 56.4 ml to 86.9 ml( P=0.004), from 50.5 ml/m 2 to 68.4 ml/m 2( P=0.022), respectively. And the long-term LV-EDV increased from 56.6 ml to 74.7 ml( P=0.002) when compared to that of early postoperative. There was no significant differences in right ventricle(RV)-EF, RV-SVI, RV-CO, RV-CI, RV-EDV and RV-EDVI between pre- and post- CR( P>0.05); but the long-term postoperative RV-CO and RV-EDV increased from 3.1 L/min to 4.1 L/min( P=0.008), from 67.5 ml to 96.5 ml( P<0.001), respectively, when compared with those of early postoperative. Conclusion:CR improves the function and morphology of both ventricles in children with EA. And although postoperative ventricles grow well, RV dysfunction persists.

The use of pediatric cardiothoracic CT for congenital heart disease (CHD) was traditionally limited to the morphologic evaluation of the extracardiac thoracic vessels, lungs, and airways. Currently, the applications of CT have increased, owing to technological advancements in hardware and software as well as several dose-reduction measures. In the previously published part 1 of the guideline by the Asian Society of Cardiovascular Imaging Congenital Heart Disease Study Group, we reviewed the prerequisite technical knowledge for clinical applications in a user-friendly and vendor-specific manner. Herein, we present the second part of our guideline on contemporary clinical applications of pediatric cardiothoracic CT for CHD based on the consensus of experts from the Asian Society of Cardiovascular Imaging CHD Study Group. This guideline describes up-to-date clinical applications effectively in a systematic fashion.

The use of pediatric cardiothoracic CT for congenital heart disease (CHD) was traditionally limited to the morphologic evaluation of the extracardiac thoracic vessels, lungs, and airways. Currently, the applications of CT have increased, owing to technological advancements in hardware and software as well as several dose-reduction measures. In the previously published part 1 of the guideline by the Asian Society of Cardiovascular Imaging Congenital Heart Disease Study Group, we reviewed the prerequisite technical knowledge for clinical applications in a user-friendly and vendor-specific manner. Herein, we present the second part of our guideline on contemporary clinical applications of pediatric cardiothoracic CT for CHD based on the consensus of experts from the Asian Society of Cardiovascular Imaging CHD Study Group. This guideline describes up-to-date clinical applications effectively in a systematic fashion.

Objective To explore the effect of Protectin DX(PDX) on acute liver injury(ALI) induced by sepsis in mice and the underlying mechanism. Methods Mice received cecum ligation and puncture(CLP) to induce sepsis-associated acute liver injury. Male C57BL/6 mice were randomly (random number) divided into 3 groups (n=10 each group): (1) sham group (S group), (2) CLP group and (3) CLP +PDX group (PDX group ). Mice in the PDX group were received PDX 1 μg (intraperitoneal injection). One hour after CLP operation, mice in the S and CLP groups were received equal amounts of saline. The serum and liver tissues were collected at 24 h after CLP. The histological changes of the liver were observed by HE staining. The ALT and AST levels in the serum were assessed by using the automatic biochemical analyzer. The levels of cytokines (TNF-α, IL-6, IFN-γ and IL-10) in the serum were quantified by ELISA. MPO activity in the liver tissues were assessed. Western blot was used to detect the expression of pNF-kB p65 and NF-kB p65 in liver tissues. Results Compared with the S group, HE staining in the CLP group showed disordered hepatic cords, hepatocyte swelling and necrosis, infiltrations of inflammatory cells, congestion and bleeding, and the score of liver injury was increased significantly (P<0.05). Levels of ALT, AST, TNF-α, IL-6, IFN-γ, and IL-10 were increased in the CLP group (P<0.05). The activities of NF-κB and MPO in the liver tissues were obviously enhanced (P<0.05). The levels of liver injury, cytokines (TNF-α, IL-6, IFN-γ), MPO and activities of NF-κB in the CLP+PDX group were significantly decreased when compared with those in the CLP group (P<0.05),while the concentration of IL-10 was significantly increased (P<0.05). Conclusions PDX can alleviate sepsis-induced acute liver injury through inhibiting NF-KB activity in the liver tissues.