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Objective Todiscuss the causes and treatment of intimo-intimal intussusception in endovascular repair of aortic dissecting aneurysms.Methods This retrospective study included 7 patients with intimo-intimal intussusception who underwent endovascular repair of aortic dissecting aneurysms from January 2017 to June 2018.There were 5 males and 2 females aged 34 to 64 years (mean 47.1 years),with a clinical course from 8 hours to 3 months.Six cases presented with acute chest pain and 1 had abdominal pain.Preoperative CTA was performed in all patients to confirm the diagnosis.Six patients received thoracic endovascular aortic repair (TEVAR) and 1 receivedfenestration.Results The endovascular repairs were successful without converting to open surgery in all patients.Pathological classifications were 1 type Ⅰ,5 type Ⅱ and 1 type Ⅲ.Four patients received another aortic stent at distal segment to cover the intimo-intimal intussusception and 1 patient at proximal site.One patients received another bare stent in the superior mesenteric artery,and 1 case received abdominal aortic stent implantation.Balloon was used in 2 cases to dilate the stenosis of aortic stents.The death occurred in 1 case at 3 days after surgery for metadata object description schema,and 1 patient needed continuous renal dialysis after discharge.The postoperative conditions (from 7 to 21 days) of other patients were normal without paraplegia,bowel necrosis,lower limb ischemia or arterial rupture.Conclusions The results indicate that the intimo-intimal intussusception in endovascular aortic dissecting aneurysms repair is rare and it is a severe complication.Re-endovascular aortic repair is a safe and reliable surgical approachbased on the type in early phase.
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Objectives To investigate the effect of different dosages of low molecular weight heparin on acute pulmonary embolism and inhibition of pulmonary intimal hyperplasia in immature rats. Methods 90 male immature SD rats were randomly divided into ifve groups: sham group, pulmonary embolism group, low-low molecular heparin group (L-LMH), medium-low molecular heparin group (M-LMH) and high-low molecular heparin group (H-LMH). The model of acute pulmonary embolism was established through jugular vein injection with gel-foam solution. The rates in the L-LMH, M-LMH, H-LMH groups were treated with low molecular weight heparin by subcutaneous injection after surgery with a dosage of 0 . 005 ml/kg, 0 . 01 ml/kg, 0 . 02 ml/kg, twice a day. Animals in the control group were given saline injection. Arterial blood gas, pulmonary artery pressure (mPAP), right ventricular pressure (RVP), wall area/tube area, wall thickness/tube diameter, and the expression of PDGF-B and MCP-1 at gene and protein levels in lung tissue were detected on the 7 th ( 7 d), 14 th ( 14 d) and 28 th ( 28 d) after opration. Results There were signiifcant differences of PaO 2 among 5 groups on 7 d, 14 d and 28 d. PaO 2 in group M-LMH ( 105 . 1 ± 4 . 6 mm Hg) were signiifcantly higher than that of embolization group, L-LMH, but not H-LMH group at 28 d. mPAP of M-LMH group was lower than that in the other three intervention groups, but showed no signiifcant difference compared with sham group (P?>0 . 05 ). There were signiifcant differences of RVP on 7 d and 14 d. PDGF-B, MCP-1 of M-LMH group were signiifcantly lower compared with the other three intervention groups (P?0 . 05 ). Wall area/tube area, wall thickness/tube diameter scores of M-LMH group had no signiifcance differences compared with sham group on 28 d (P?>?0 . 05 ). Conclusion Medium dose of low molecular weight heparin could ameliorate the acute pulmonary embolism and inhibit the proliferation of pulmonary arteries in rats.
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Objective To investigate the relationship between leptin level of IGR patients and intima-media thickness (IMT) of carotid arterial. Methods One hundred and eighteen IGR patents were enrolled into the following three groups according to the result of oral glucose tolerance test (OGTT): 38 cases of the purely impaired fasting glucose (IFG) group, 42 cases of the purely impaired glucose tolerance (IGT) group and 42 cases of the IFG combining with IGT (IFG + IGT) group. Thirty-eight cases with normol glucose tolerance (NGR) were enrolled in the NGR group. The blood fat, fasting blood-glucose (FBG), fasting insulin (insulin), fasting C peptide , 2 h-postprandial blood glucose , 2 h-insulin , 2 h-C peptide , glycosylated hemoglobin (HbA1C), C-reactive protein (CRP), body mass index (BMI), leptin and IMT were determined in patients of the three groups and the healthy controls. The multiple linear regression was used to analyze the relationship between leptin level and IMT , and person correlation was further used to analyze the affinity degree between leptin level and IMT. Results Compared with the NGT group, the inter-group comparison showed that leptin level was significantly increased in the IFG, IGT and (IFG + IGT) groups (P < 0.05, respectively). Compared with the IFG and IGT groups, IMT and the leptin level were increased in the (IFG + IGT) group (P < 0.05, respectively). The multiple linear regression analysis showed that leptin level was correlated with the increase of IMT in the (IFG + IGT) group (P < 0.05), but not in the IFT group and the IGT group. Conclusion The leptin level in the IGR group and the IMT in the IFG + IGT ) group were significantly increased , the leptin level was closely associated with IMT.
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Introduction: Vascular endothelium is a target organ in metabolic syndrome. Ultrasound measurement of intimae-media thickness (IMT) is used in adults to predict cardiovascular risk, but normal values in children are unknown. Objective: To describe arterial intima-media thickness in healthy children, by means of an ultrasonographic technique and a specific software. Subjects and Methods: Seventy-four healthy children, 39 males, ages 5-15 y.o., body mass index (BMI) 10-85 percentile were selected from an upper-middle socioeconomic background. Subjects were grouped by age. Three measurements were carried out to each subject at the middle third of the right common carotid for maximal intima-media thickness using a Phillips iU22 ultrasound system; a 12-5 MHz lineal transducer and QLAB advanced quantification software, which includes a specific program for automated IMT measurements, were used. Weight, stature, BMI, and abdominal circumference were registered. Results: No significant differences in the IMT values according to age or gender were found. Median IMT was 0.41 mm (0.40-0.56 mm); 5 children presented IMT 0.50-0.56 mm (> 75th percentile). The median IMT for those children with abdominal circumference < 50th percentile was the same for those over 50th percentile (0.41 mm). Conclusions: Measurements of carotid intima-media thickness for healthy Chilean children were found to be in the expected range, in relation with adult known values.
Introducción: Uno de los sitios de daño asociado a síndrome metabólico es el endotelio vascular; la medición ecográfica del grosor de intima-media carotídea (GIMC) es usado en adultos como un indicador de daño vascular, pero no se conocen valores de normalidad en niños. Objetivo: Estudiar el grosor de intima-media carotídea mediante programa computacional específico, en niños chilenos sanos. Pacientes y Método: Se seleccionaron 72 niños (percentiles 10-85 de IMC sin enfermedad conocida), 5 a 15 años de edad, de estratos socioeconómicos medio-altos, 33 niñas y 39 varones, agrupados por tramos de edad; se les efectuó y promedió 3 mediciones ecográficas en tercio medio de arteria carótida común derecha, mediante equipo Phillips modelo ÍU22; se usó un transductor lineal 12-5 MHz y un software de cuantificación avanzada QLAB, con programa específico de medición automática para grosor de GlMC Además se les midió: peso, talla, 1MC, perímetro abdominal (PA). Se solicitó previamente el consentimiento escrito a padres y niños. Resultados: No hubo diferencias en las mediciones de GlMC de acuerdo a edad o sexo, la mediana fue de 0,41 mm (0,40-0,56 mm); hubo 5 niños entre 0,50 y 0,56 mm (> percentil 75); no hubo correlación con PA o 1MC; los niños con PA < percentil 50 tuvieron una mediana de GlMC igual a aquellos con PA > percentil 50 (0,41 mm). Conclusiones: Las mediciones de grosor de intima-media carotídea de niños y adolescentes chilenos sanos mediante técnica ecográfica y programa computarizado, están dentro de valores esperados para la edad, comparados con valores conocidos de adultos.
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Humanos , Masculino , Adolescente , Femenino , Preescolar , Niño , Arteria Carótida Interna , Túnica Íntima , Túnica Media , Ultrasonografía , Antropometría , Arteria Carótida Interna/anatomía & histología , Índice de Masa Corporal , Procesamiento de Señales Asistido por Computador , Túnica Íntima/anatomía & histología , Túnica Media/anatomía & histologíaRESUMEN
Objective To investigate inhibitory effect of Telmisartan on carotid arterial intima-media thickness in patients with essential hypertension. Methods 104 patients with mild or mid essential hypertension were randomly divided into three groups, which include telmisartan group( telmisartan 80 mg/d PO), ramipril group( ramipril 5 mg/d PO), and control group( other anti-hypertension agents). Blood pressure was monitored during treatment. Carotid arterial intima-media thickness(CIMT) were measured in all patients at beginning and patients who had the 12 months course. Results There were 91 patients who had the 12 months course,which include telmisartan group33 cases,ramipril group28 cases, and control 30 cases. The CIMT was significantly decreased in telmisartan group and ramipril group ( all P < 0. 05 ), and not changed in control while blood pressure fall effectively. In ramipril, group5 cases were ceased the course because of severe cough. Conclusion Both telmisartan and ramipril could decrease blood pressure and CIMT effectively, and there were less side effects in telmisartan group.
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Objective To study the relationship of microinflammation,nutrition and common carotid artery intima-media thickness(CCA-IMT) for the early prevention and interference of ischemic stroke. Methods(CCA-IMT was) measured by carotid arterial ultrasound in 250 elderly subjects.The levels of serum high-sensitivity C-(reactive) protein(hsCRP),ferritin,albumin,pre-albumin and transferrin were assayed at the same time.According to the results of CCA-IMT,all the subjects were divided into five groups:
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Objective To investigate the significance of measuring carotid arterial intima-media thickness(IMT) and diabetic retinopathy(DR).Methods 76 diabetic patients were divided into three groups:no diabetic retinopathy(NDR),nonpmliferative diabetic retinopathy(NPDR),and proliferative diabetic retinopathy(PDR).20 helath people were chosen as control All subjects were examined by ColorDoppler imaging on the carotid arterial intima-media thickness.Results The mean IMT was significantly higher in T_2DM patients than in normal control group(P
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Objective:To investigate the effect of rosuvastatin on carotid arterial intima-media thickness of elderly patients and its comparison with simvastatin.Method:126 patients hospitalized during January and August 2008 were randomly divided into a treatment group and a cotrolled group.All the patients were male and older than 70 years old,and their mean age was 78.9?8.8 years.63 patients accepted the rosovastatin therapy and 63 patients accepted the simvastatin therapy.Result:After 8-weeks'therapy,CIMT was reduced from 1.58?0.24mm before the treatment to 1.44?0.22mm after it.There was no difference between the two groups in decreasing CIMT.No adverse events related to the study medication were observed.Conclusion:The treatment with rsuvastatin can prevent the increase of carotid arteriosclerosis in eldlerly patients without any difference in decreasing CIMT,compared with simvastatin.