1.Diagnostic value of MRI in invasively pernicious placenta previa
Fangjing ZHANG ; Manrui CAO ; Bingguang LIU ; Jichao ZHU ; Mingwu LOU
Journal of Practical Radiology 2015;(5):797-801
Objective To explore the diagnostic value of MRI in invasively pernicious placenta previa.Methods MRI and color doppler ultrasound were performed in 1 50 patients with pernicious placenta previa.According to the operation or pathology findings, the diagnostic value of placental invasion was compared among MRI,color doppler ultrasound and both of them.Analyzed and com-pared the MRI findings of 64 patients which were confirmed as invasive placenta including adherent placenta in 20 patients,implanted one in 38 and penetrated one in 6.Results Significant difference was not found among MRI,color doppler ultrasound and both in the diagnostic value of invasive placenta (P >0.05).There was a significant difference among adherent placenta,implanted one and pen-etrated one in the diagnostic value of MRI (P <0.05),and the highest and lowest values were penetrated placenta and adherent pla-centa respectively.Conclusion MRI is an important diagnostic method in invasively pernicious placenta previa,which was useful for its classification but with a limitation for the diagnosis of adherent placenta.
2.MRI features of placenta accreta
Manrui CAO ; Mu DU ; Yi HUANG ; Bingguang LIU ; Fangjing ZHANG ; Jimin GUO ; Zhijun ZHU
Chinese Journal of Radiology 2012;46(7):629-632
ObjectiveTo investigate the MRI features of placenta accreta.MethodsFrom Apr 2009 to Jun 2011,15 patients with placenta accrete received MRI examination.In them,placenta accrcta was diagnosed based on clinical manifestations or postoperative histopathologv.The MR features of placenta accreta in thcm( study group) were retrospectively analyzed and compared with those in 15 pregnant women without placenta accreta (control group)with Fisher exact test.ResultsIn the 15 patients with placenta accreta,uterine bulging and(or) a focal outward contour bulge was detected in 14 patients; heterogeneous signal intensity in the placenta was detected in 15 patients; dark intraplacental bands on T2-weighted images was detected in 15 patients; and increased subplacental vascularity was detected in 11 patients on T1- weighted images.In the study group,14 patients showed at least three of the above four features,and in all of them uterine bulging and(or) a focal outward contour bulge,heterogeneous signal intensity in the placenta and dark intraplacental bands on T2-weighted images were detected; one patient showed heterogeneous signal intensity in the placenta,dark intraplacental bands on T2-weighted images and increased subplacental vascularity.In the control group,none patient had three of the above features.Uterine bulging and(or) a focal outward contour bulge,heterogeneous signal intensity in the placenta,dark intraplacental bands on T2-weighted images and increased subplacental vascularity were detected in 3,6,3 and 4 patients (P=0.000,0.001,0.000 and 0.027 ),respectively.ConclusionsThe main MRI features of placenta accreta are uterine bulging and(or) a focal outward contour bulge,heterogeneous signal intensity in the placenta and dark intraplacental bands on T2-weighted images Besides,increased subplacental vascularity also could provide useful information for the diagnosis of placenta accreta.
3.PreoperativepredictionofmassivepostpartumhemorrhageinplacentapreviabyMRI
Jimin GUO ; Manrui CAO ; Fangjing ZHANG ; Yang LIU ; Wei LU ; Guangrong FAN
Journal of Practical Radiology 2019;35(5):772-775
Objective ToinvestigatethevalueofpreoperativeMRIforplacentapreviainpredictionofmassivepostpartumhemorrhage. Methods AretrospectiveanalysisoftheclinicalhistoryandprenatalMRIfeaturesof362patientswithplacentapreviawereperformed. Ofthese,54casesexperiencedseverepostpartum hemorrhage.Results Univariateanalysisshowedthattheageofpregnantwomen (χ2=3.951,P=0.047),gestationalage(χ2=6.257,P=0.012),numberofcesareansections(χ2=36.372,P=0.001)andgemellary pregnancy(χ2=7.933,P=0.005)wereassociated with massivepostpartum hemorrhage.Amongthe MRIsigns,Uterinebulging (OR,46.712;95%CI,13.067-166.987),placentalprotrusionsign (OR,22.787;95% CI,4.595-113),andintroplacentalT2dark band(OR,14.757;95%CI,7.149-30.461)indicatedhighriskwithmassivepostpartumhemorrhage.Myometrialthinningorlocalized interruption,unevenplacentalsignal,abnormalbloodvesselsbelowtheplacenta,abundantbloodvesselsinloweruterusandcervix, cervicalshorteningandothersignsfortheevaluationofseverepostpartumhemorrhagewerealsostatisticallysignificant.Conclusion MRIcanpredictmostoftheseverepostpartumhemorrhagebeforesurgeryandisveryhelpfultoimprovethepatientprognosis.
4. COVID-19 Pandemic: global epidemiological trends and China’s subsequent preparedness and responses
Yan GUO ; Yangmu HUANG ; Jie HUANG ; Yinzi JIN ; Wen JIANG ; Peilong LIU ; Fangjing LIU ; Junxiong MA ; Jiyan MA ; Yu WANG ; Zheng XIE ; Hui YIN ; Chunshan ZHAO ; Shuduo ZHOU ; Ji ZHANG ; Zhijie ZHENG ; Zhijie ZHENG
Chinese Journal of Epidemiology 2020;41(5):643-648
The outbreak of COVID-19 has spread quickly across 114 countries/territories/areas in six continents worldwide and has been announced as a pandemic by WHO. This study analyzed global COVID-19 epidemiological trends, examined impact of the pandemic on global health security, diplomacy, and social environment in China, and provided short- and long-term strategic policy recommendations for China’s subsequent preparedness and responses.
5.Influence of prior percutaneous coronary intervention on outcome of coronary artery bypass grafting: A multi-center clinical study
Hongwei JIANG ; Hang ZHANG ; Wen CHEN ; Fangjing ZHENG ; Yongfeng SHAO ; Yongxiang QIAN ; Guoxiang WANG ; Mingqiu LI ; Qingsheng YOU ; Zhiyong LIU ; Yong WANG ; Zhenya SHEN ; Wei LI ; Demin LI ; Su HUANG ; Chongjun ZHONG ; Rui WANG ; Xin CHEN
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2022;29(11):1436-1441
Objective To investigate the influence of prior percutaneous coronary intervention (PCI) on the outcome of coronary artery bypass grafting (CABG). Methods Clinical data of 5 216 patients from Jiangsu Province CABG registry who underwent primary isolated CABG from 2016 to 2019 were retrospectively analyzed. Patients were divided into a PCI group (n=673) and a non-PCI group (n=4 543) according to whether they had received PCI treatment. The PCI group included 491 males and 182 females, aged 62.6±8.2 years, and the non-PCI group included 3 335 males and 1 208 females, aged 63.7±8.7 years. Multivariable logistic regression and propensity score matching (PSM) were used to compare 30-day mortality, incidence of major complications and 1-year follow-up outcomes between the two groups. Results Both in original cohort and matched cohort, there was no statistical difference in the 30-day mortality [14 (2.1%) vs. 77 (1.7%), P=0.579; 14 (2.1%) vs. 11 (1.6%), P=0.686], or the incidence of major complications (myocardial infarction, stroke, mechanical ventilation≥24 h, dialysis for new-onset renal failure, deep sternal wound infection and atrial fibrillation) (all P>0.05). The rate of reoperation for bleeding in the PCI group was higher than that in the non-PCI group [19 (2.8%) vs. 67 (1.5%), P=0.016; 19 (2.8%) vs. 7 (1.0%), P=0.029]. Both in original cohort and matched cohort, there was no statistical difference in 1-year survival rate between the two groups [613 (93.1%) vs. 4 225 (94.6%), P=0.119; 613 (93.1%) vs. 630 (95.2%), P=0.124], while the re-admission rate in the PCI group was significantly higher than that in the non-PCI group [32 (4.9%) vs. 113 (2.5%), P=0.001; 32 (4.9%) vs. 17 (2.6%), P=0.040]. Conclusion This study shows that a history of PCI treatment does not significantly increase the perioperative mortality and major complications of CABG, but increases the rate of cardiogenic re-admission 1 year postoperatively.