Objective To investigate the CT manifestations of Meckel's diverticulum and its complications in children. Methods Retrospective analysis of Clinical and CT findings in 25 cases with pathologically proved Meckel's diverticulum. The unenhanced and contrast-enhanced CT were obtained in all patients. Results (1)The direct signs: the diverticulum cannot be shown in 5 cases; the diverticulums were found around the navel or in lower right abdomen in 20 cases. The blind-ending fluid-filled or gas-filled structures were found in 9 cases, with heterogeneous ring-enhancement. The tubercle-like structures were detected in 11 cases, which showed no enhancement in 4 cases, and homogeneous enhancement in 3 cases,and heterogeneous enhancement in 4 cases. (2) The indirect signs included intestine obstruction in 8 cases,swelling fat layer surrounding the diverticulum in 9 cases, free gas around the diverticulum in 3 cases,thickened mesentery in 8 cases, ascites in 4 cases, and intussusception due to inverted Meckel's diverticulum with "target sign" in 1 case. (3) CT classification: with diverticulitis or diverticular bleeding in 20 eases; with intestine obstruction or intussusception in 8 cases; bands-caused obstruction in 7 cases;intussusception in 1 case; with perforation in 3 cases. Conclusion Meckel's diverticulum and its complications have typical CT findings, and CT can clearly demonstrate diverticulum's shape, margin,internal components and surroundiug tissues.

Hemangioma ; genetics ; Humans ; Infant

Objective: To assess the risk factors for peri-procedural myocardial infarction (PMI) occurrence in patients after percutaneous coronary intervention (PCI) based on the new standard of US Society for cardiovascular angiography and interventions (SCAI). Methods: According to SCAI standard, a total of 3371 relevant patients with 3516 elective PCI in our hospital were enrolled. The baseline clinical features, coronary angiography (CAG) findings and PCI procedural elements were retrospectively studied, the independent risk factors for PMI occurrence were identified by multivariate Logistic regression analysis. Results: There was 108/3516 (3.1%) PMI occurred in all patients. Multivariate Logistic regression analysis presented that age (OR=1.037, 95% CI 1.016-1.058), treating multi-vessel lesions (OR=1.697, 95% CI 1.095-2.629), treating at least 1 bifurcation lesion (OR=1.869, 95% CI: 1.213-2.878) and the total length of lesion (OR=1.016, 95%CI 1.009-1.024) were the independent risk factors for PMI occurrence. Conclusions: Age, treating multi-vessel lesions, at least one bifurcation lesion and the total length of lesion were the independent risk factors for PMI occurrence in patients after elective PCI.

Objective: To investigate the prognostic factor for small side branch (SB) occlusion during coronary bifurcation intervention with the incidence rate of peri-procedural myocardial injury (PMI) in relevant patients.
Methods: A total of 925 consecutive patients who received coronary bifurcation intervention were enrolled and there were 949 SB lesions ≤ 2.0 mm conifrmed by quantitative coronary angiography (QCA). The patients were divided into 2 groups: SB occlusion group,n=85, including 86 bifurcation lesions and Non-SB occlusion group,n=840, including 863 bifurcation lesions. The clinical characteristics, QCA findings and PCI procedural conditions were studied by Multivariate logistic regression analyses to explore the independent predictors of SB occlusion and to compare the incidence rate of PMI.
Results: The total SB occlusion rate was 9.1% (86/949). SB occlusion group had the higher incidence rate of PMI (26/83, 31.3%) vs (77/821, 9.4%) and peri-operative MI mortality(6/83, 7.2%) vs (11/821, 1.3%) than Non-SB occlusion group, both P<0.001. In SB occlusion group, the diameter ratio of main vessel (MV)/SB was obviously higher than Non-SB occlusion group,P<0.001. The independent predictors of SB occlusion included in true bifurcation lesion, irregular plaque, pre-dilation of SB, TIMI lfow grade of pre-procedural SB, stenosis degrees of distal MV and bifurcation core, bifurcation angle, diameter ratio of MV/SB and the stenosis degree of SB before MV stenting.
Conclusion: Coronary bifurcation lesion patients with SB occlusion had the higher risk of PMI during the interventional procedure.

PURPOSETo investigate the changes of cerebral hemodynamics pre- and post-ventricular drainage in patients with posttraumatic acute diffuse brain swelling.

METHODSTwenty-four cases of traumatic diffuse brain swelling were analyzed retrospectively. Patients in nonsurgical group were treated by medicine therapy. Patients in surgical group were treated by external ventricular drainage plus medicine therapy. The first CT perfusion scan was completed within 4-5 h after trauma and scanned again after 7 days. The changes of perfusion parameters in area-of-interest in two groups were analyzed and compared before and after treatment.

RESULTSCompared with the nonsurgical group, the value of cerebral blood volume, cerebral blood flow and mean transit time in bilateral frontal temporoparietal grey matter, basal ganglia, cerebellum, and brain stem at pre- and post-therapy were increased significantly (p < 0.05) in surgical group, and consequently the prognosis of patients undergoing surgery was also better than that of nonsurgical group.

CONCLUSIONExternal ventricular drainage can improve cerebral perfusion and increase survival quality for the patients with posttraumatic acute diffuse brain swelling.

Adult ; Aged ; Brain ; physiopathology ; Brain Edema ; physiopathology ; therapy ; Brain Injuries ; complications ; Cerebrovascular Circulation ; Drainage ; Female ; Hemodynamics ; Humans ; Male ; Middle Aged ; Retrospective Studies

OBJECTIVETo determine the differential protein and mRNA expressions of mitochondria fusion protein-2 (Mfn2) in hepatic tissues in conditions of cirrhosis and acute on chronic liver failure using rat model systems,and to determine the correlative effects on production of adenosine triphosphate (ATP) and reactive oxygen species (ROS).

METHODSA liver cirrhotic rat model (LC rats) was established by intraperitoneal injection of carbon tetrachloride (CCl4,in vegetable oil),and these mice were subsequently used (10 weeks later) to establish the acute on chronic liver failure rat model (LF rats) by injecting lipopolysaccharide and D-amino-galactose.Control groups (normal controls,NC rats) were established for each model by intraperitoneal injection of vegetable oil only.Protein expression of Mfn2 in liver was quantified by western blotting with fluorescence densitometry and immunofluorescence staining,and mRNA expression was measured by real-time fluorescence quantitative PCR.ROS levels in liver were measured by fluorescence spectrophotometry,and ATP content was measured by bioluminescence assay.Significance of inter-group differences was assessed by one-way ANOVA,and correlations were determined using bivariate statistical modeling.

RESULTSMfn2 protein expression was significantly lower in the liver tissues from modeled rats than that from the control rats (LC:0.051+/-0.004 and LF:0.037+/-0.007 vs.NC:0.254+/-0.008;F=444.98,P less than 0.05).The mRNA expression followed the same trend of lower expression (LC:21.21+/-0.93 and LF:24.35+/-0.85 vs.NC:19.09+/-0.69; F=66.941,P less than 0.05).The ATP content in liver tissues was also significantly lower in the modeled rats (LC:2.07+/-0.05 mol/L and LF:1.81+/-0.11 mol/L vs.NC:3.24+/-0.08 mol/L; F =574.21,P less than 0.05).Lower Mfn2 expression was correlated with lower ATP content (r =0.982) and higher ROS content (r =0.803).

CONCLUSIONReduced Mfn2 expression in liver tissue may cause a decrease in ATP synthesis and increase in ROS generation,thereby disrupting metabolism and increasing oxidative stress in the liver under conditions of cirrhosis and liver failure.

Acute-On-Chronic Liver Failure ; metabolism ; Animals ; Carbon Tetrachloride ; GTP Phosphohydrolases ; metabolism ; Liver Cirrhosis ; metabolism ; Membrane Proteins ; metabolism ; Mice ; Mitochondrial Proteins ; metabolism ; Rats

Objective To observe the effect of opioid-free anesthesia with esketamine and ciprofol for the elderly underwent colonoscopy.Methods 160 elderly patients underwent colonoscopy were included in this study.Those patients were assigned to esketamine combined with ciprofol group(group E,n = 80)and sufentanil combined with ciprofol(group S,n = 80).Patients were intravenously injected respectively with esketamine 0.2 mg/kg in group E and sufentanil 0.1 μg/kg in group S.Then,all the patients were intravenously injected with ciprofol(0.2 mg/kg).Mean arterial pressure(MAP),heart rate(HR)and percutaneous arterial oxygen saturation(SpO2)were recorded before injection of test drug(T0),when modified observer's assessment of alertness/sedation(MOAA/S)score was 0 points(T1),when colonoscopy through hepatic flexure(T2)and colonoscopy was removed after examination(T3).The induction time of anesthesia,time of fully awake,rate of successful anesthesia,additional dose of ciprofol,satisfaction score and incidence of adverse events were recorded.Results Compared with T0,MAP at T1,T2 and T3 in two groups was decreased,HR at T1 in group E,HR at T1,T2 and T3 in group S and SpO2 at T1 and T2 in group S were decreased,the differences were statistically significant(P<0.05).Compared with T1,MAP and HR at T2 in two groups were increased,the differences were statistically significant(P<0.05).Compared with group E,MAP in group S at T1,T2 and T3,HR and SpO2 at T1 and T2 in group E were decreased,the differences were statistically significant(P<0.05).Compared with the group E,the additional dosage of ciprofol,the incidence of hypoxemia and hypotension were increased,the satisfaction of anesthesiologists was decreased in group S,the differences were statistically significant(P<0.05).Conclusion For opioid-free anesthesia,esketamine is feasible for colonoscopy anesthesia in elderly patient,and the incidence of hypoxemia and hypotension is low.

Objective To observe the effect of ultrasound-guided iliopsoas plane block(IPB)on the quality of postoperative recovery in patients undergoing hip arthroplasty.Methods Sixty patients who underwent hip arthroplasty were selected,37 males and 23 females,aged 40-79 years,BMI 18-30 kg/m2,ASA physical status Ⅰ-Ⅲ.The patients were divided into two groups by random number table method:the iliopsoas plane block group(group IPB)and the femoral nerve block(FNB)group(group FNB),30 pa-tients in each group.Before anesthesia induction,IPB was performed with 0.5%ropivacaine 10 ml and lat-eral femoral cutaneous nerve block was performed with 0.5%ropivacaine 5 ml in group IPB.And FNB was performed with 0.5%ropivacaine 10 ml and lateral femoral cutaneous nerve block was performed with 0.5%ropivacaine 5 ml in group FNB.The dosages of propofol,remifentanil,and cis-atracurium during operation were recorded.The quality of recovery-15(QoR-15)scale was evaluated preoperatively and postoperatively 1 day,2 and 3 days.The max VAS(VASmax)pain score and manual muscle test(MMT)score of quadri-ceps muscle were recorded 12,24,and 48 hours after surgery.The time of getting out of bed for the first time,opioid dosage,and patient satisfaction were recorded.The incidence of nerve injury,vascular injury,puncture site infection,and local anesthetic poisoning were recorded.The postoperative complications of diz-ziness,nausea and vomiting,deep vein thromboses,and elirium were also recorded.Results There was no significant difference in the dosage of propofol,remifentanil,and cis-atracurium between the two groups.Compared with group FNB,the QoR-15 scale score in group IPB was significantly higher 1 day,2 and 3 days after operation(P＜0.05).Compared with group FNB,the MMT scores of quadriceps muscle was sig-nificantly higher in group IPB 12 and 24 hours after surgery(P＜0.05),and the first time of getting out of bed was shortened in group IPB(P＜0.05).However,there were no significant differences in the VASmax pain score,MMT score of quadriceps muscle 48 hours after surgery,opioid dosage,and patient satisfaction between the two groups.No nerve block related complications were found in both groups.There were no sig-nificant differences in postoperative complications between the two groups.Conclusion The iliopsoas plane block can improve the quality of postoperative recovery and accelerate the recovery of patients with hip re-placement,and the effect is better than that of femoral nerve block.